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https://hackaday.com/2010/10/05/build-a-simple-switch/
|
Build A Simple Switch
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"button",
"cd",
"copper",
"switch",
"velcro"
] |
Forget hacking an easy button, grab a couple of those outdated CD-Rs and
build your own switch
for that next project. This was developed with handicapped accessibility in mind; assembled easily with common products and it’s fairly robust. In fact, our junk box has everything you need except the adhesive backed copper foil. Combine two old CD’s, covered in copper on facing sides, separated by two strips of Velcro to separate the conductors. When pressure is applied, one CD flexes to make contact with the other and complete the circuit. So easy, yet we never thought of it. We’ll add it to our list of
homebrew input devices
.
[Thanks Michael]
| 27
| 27
|
[
{
"comment_id": "191747",
"author": "NickS",
"timestamp": "2010-10-05T21:07:30",
"content": "This idea has been around forever. The Army’s Improvised Munitions Handbook has something similar as a trigger for IEDs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191748",
"author": "Erik Johnson",
"timestamp": "2010-10-05T21:11:11",
"content": "At first glance the picture made me think it was a capacitive sensor like the puck some add-on touch lamp switches useIt’s basically a membrane switch/button, just like most keyboards use (flex conductor, spacer, flex conductor)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191771",
"author": "Birdy",
"timestamp": "2010-10-05T21:20:46",
"content": "I’ve done something similar to this with 2 pennies, a small piece of sponge, electrical tape, and speaker wire….great if you place it under rug and use it with batteries and a light as a simple alarm if someone is approaching your door",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191773",
"author": "cgmark",
"timestamp": "2010-10-05T21:26:26",
"content": "As suggested you can also use a CD, not CDR for capacitive input sensors. Cut into the foil in the center and attach your sense lead. These should be able to work with the ST8 boards that have capacitive features built in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191786",
"author": "Dave",
"timestamp": "2010-10-05T21:51:14",
"content": "I hope this is to be used for low voltage applications",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191787",
"author": "RM",
"timestamp": "2010-10-05T21:51:19",
"content": "Great use for an old Windows 2000 CD as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191789",
"author": "Ryan",
"timestamp": "2010-10-05T21:58:45",
"content": "I would class the concept as general knowledge.Used a lot in children toy manufacturing to reduce costs.Would be more ghetto if aluminion foil was used.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191790",
"author": "Jim K.",
"timestamp": "2010-10-05T21:58:46",
"content": "Instead of copper foil, why not use aluminum foil as per the following?http://softlyspokenmagicspells.com/halloween/mat_switch.htmlNot thumbing my nose at this solution, just thinking about what I more often have on hand around the house.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191820",
"author": "chiefcrash",
"timestamp": "2010-10-05T22:46:23",
"content": "Old but good idea. I used to make a switch like this with just 2 stiff pieces of cardboard, some aluminum foil, and drinking straws. When I was a kid, I used to put one under the carpet in front of my room’s door so I could tell if someone was standing outside…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191848",
"author": "RussWill",
"timestamp": "2010-10-05T23:54:37",
"content": "Why is this here? There are a million better ways, and better reasons…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191852",
"author": "jamieriddles",
"timestamp": "2010-10-06T00:00:04",
"content": "Cool, makes me wish I collected all those damn AOL discs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191863",
"author": "Dave",
"timestamp": "2010-10-06T00:36:38",
"content": "Let’s not be critical of the technical idea as we all see it clearly exists in other forms but moreso the hack itself of being able to use 2 CDs as a switch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191873",
"author": "jeditalian",
"timestamp": "2010-10-06T00:49:32",
"content": "the 5-inch ass-cheek sensitive switch. because paper clips, clothespins, aluminum foil, safety pins, thumbtacks, nails, screws, strips of sheet metal, and plain ol’ wires just don’t cut it.i have a fun idea: throw it in the microwave. everybody’s done it with one cd, some have done it with an entire stack, but the whole parallel plate(cd) capacitor thing.. haven’t seen that one yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191877",
"author": "kyle",
"timestamp": "2010-10-06T01:02:45",
"content": "reminds me of thishttp://hackaday.com/2009/09/15/using-matchbox-cars-as-a-switch/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191891",
"author": "amk",
"timestamp": "2010-10-06T01:12:47",
"content": "For a larger switch two sheets of window screen separated weather stripping in a grid like pattern works great, and fits nicely under carpet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191905",
"author": "Gavin",
"timestamp": "2010-10-06T01:38:11",
"content": "Oh hey, that’s me! Cool!Thanks for the comments, criticism, and related ideas, guys.Just to be clear, I didn’t make that guide because it’s a new or particularly complex concept. It’s just that many of the teachers, therapists, parents, etc. who work with people who have disabilities don’t have a lot of experience with circuits and such. I wanted to show them how simple it is to make their own inexpensive tools, and give them a clear guide to do so.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191949",
"author": "Whatnot",
"timestamp": "2010-10-06T03:10:40",
"content": "Copper foil is a bit elusive in my area, but aluminium foil and tape is readily available though.I’m just saying that you should not assume too much of what’s in people’s junk drawer mike.Coincidentally I am in some need for some copper foil to close a gap between 2 surfaces that need thermal contact but with a gap that’s too wide for thermal paste, so I’m a bit peeved that I’d have to get it online it seems and pay shipping.So if anybody knows where I can retrieve a bit from? The only source I could think of so far is high quality coax cable, but that’s too thin (and costly).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191956",
"author": "Michael Bradley",
"timestamp": "2010-10-06T03:30:30",
"content": "I like it!FYI – Foil tape, hardware store, for ducking etc…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192035",
"author": "Ryan Leach",
"timestamp": "2010-10-06T07:25:34",
"content": "This is great!Reckon I’ll use it for a DIY home DDR pad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192068",
"author": "strider_mt2k",
"timestamp": "2010-10-06T08:51:07",
"content": "Wow.At least the last switch involved a couple of Hot Wheels cars to keep it interesting…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192244",
"author": "Drake",
"timestamp": "2010-10-06T15:13:01",
"content": "Bag clips + aluminium foil make momentary naturally closed and naturally open switches.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192280",
"author": "fartface",
"timestamp": "2010-10-06T16:34:27",
"content": "This has been around for over a century. Just because you use a “cd” does not make it innovative.Wood, ducks, small churches all have been used for this as long as electricity has been around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192294",
"author": "dan fruzzetti",
"timestamp": "2010-10-06T16:58:19",
"content": "why not just use cheapo un-coated, un-printed cds turned back-to-back for the same effect? would this not work?@fartface: you forgot very small rocks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192373",
"author": "ieds|suck",
"timestamp": "2010-10-06T19:05:06",
"content": "great. more cheap pressure plate ideas.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192389",
"author": "spadefinger",
"timestamp": "2010-10-06T19:35:41",
"content": "Heh. My first thought was that it was going to be an ethernet switch when I clicked the link. That would have been interesting.On the IED angle and the W2K CD, I guess it might give a new meaning to BSOD.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192510",
"author": "walt",
"timestamp": "2010-10-06T23:47:16",
"content": "instructables BOOOO!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192564",
"author": "Protowizard",
"timestamp": "2010-10-07T01:18:36",
"content": "good way to use dell OEM Disks LOL",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,363.098237
|
||
https://hackaday.com/2010/10/05/cheaper-biometric-gun-safe/
|
Cheap(er) Biometric Gun Safe
|
Jakob Griffith
|
[
"Security Hacks"
] |
[
"biometric",
"fingerprint",
"gun",
"lock",
"pistol",
"reader",
"safe",
"scanner"
] |
[Greg] sent in his
biometric pistol safe lock
. He keeps his guide light on details so not every Joe can crack the system (
there is a thread
to sift through if you really wanted to), but the idea runs fairly simple anyway. [Greg] took an old garage door opening fingerprint scanner and wired it into a half broken keypad based pistol safe. While he did have some issues finding a signal that only fired when the correct fingerprint is scanned, a little magic with a CMOS HEX inverter fixed that problem quick.
This does bring one question to our minds, are fingerprint scanners as easy to crack as
fingerprint readers
?
| 30
| 30
|
[
{
"comment_id": "191726",
"author": "Volfram",
"timestamp": "2010-10-05T20:20:37",
"content": "if your old friend [Sprite] is anybody to go by…http://spritesmods.com/?art=secustickThis could be really, really insecure if not done right.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191731",
"author": "Dan",
"timestamp": "2010-10-05T20:31:46",
"content": "Perhaps you could have thought of a better descriptor for the what the signal did than “fired.” :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191749",
"author": "Spork",
"timestamp": "2010-10-05T21:10:08",
"content": "@Volfram,Yeah if someone steals your gun safe, chances are they’re getting in. =/The real issue is that some fingerprint scanners store high-resolution images of your print… which makes it even worse when the thief steals your gun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191750",
"author": "DerAxeman",
"timestamp": "2010-10-05T21:11:56",
"content": "Since the electronics are all out side the gun safe all you need to do is put a high voltage on the wire and you are in. Of course if you build it with the electronics inside the box and some how relocate just the reader portion outside the box you could find your self locked out if you get a little paper cut on your finger.I think I’ll stick with my dial lock safe. I can live with sleeping with my 10mm under pillow and just put it away when I leave. Much more secure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191781",
"author": "projectbluebook",
"timestamp": "2010-10-05T21:41:39",
"content": "Nice hack.Agree on the security issues, best to encase the circuitry in resin, preferably the indestructible ceramic loaded stuff to prevent someone obtaining your fingerprints.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191794",
"author": "Raab",
"timestamp": "2010-10-05T22:06:51",
"content": "Ya DerAxeman, nothing safer than sleeping with a gun under your pillow",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191806",
"author": "EdZ",
"timestamp": "2010-10-05T22:23:53",
"content": "“are fingerprint scanners as easy to crack as fingerprint readers?”Optical? Easy, just use a printout. Capacitive? A bit harder, you need to make a fingerprint mould and cast some gelatin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191812",
"author": "EdZ",
"timestamp": "2010-10-05T22:29:11",
"content": "Gelatin fingers:http://cryptome.org/gummy.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191814",
"author": "EdZ",
"timestamp": "2010-10-05T22:31:34",
"content": "But this is moot: the gun safe doesn’t NEED to be secure against someone armed with a printout/duplicate of your fingerprint. It needs to be secure against someone casually or accidentally opening the safe, and in this case it is. Unless there’s some legal mumbo-jumbo on requiring reliably restricted access that I am not aware of.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191822",
"author": "Zundfolge",
"timestamp": "2010-10-05T22:50:06",
"content": "EdZ is correct … these small fingerprint gun safes are not meant to keep thieves out, they’re meant to keep your young children from accessing your home defense arm.If your small children are capable of hacking your fingerprint gun safe then you should be quite proud of your little genius :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191824",
"author": "Toby",
"timestamp": "2010-10-05T22:58:13",
"content": "Ok, security through obscurity does not work. Seriously!?! This is good enough for HaD? It’s a nice concept, a neat little “project”, but hardly a hack worthy of featuring here, considering the writeup.Sorry, HaD is better than this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191832",
"author": "Jake",
"timestamp": "2010-10-05T23:27:55",
"content": "It would be nice to have something like this for a car. When I am taking classes, I have to leave my guns in my car because I can’t take them into the classroom.@TobyWhat’s wrong with the write up? Are you having a little hissy fit because it doesn’t have step-by-step n00b instructions for you? This is *definitely* what you would call a hack. It melds a freaking garage door opener switch with a freaking safe, man!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191845",
"author": "biozz",
"timestamp": "2010-10-05T23:48:24",
"content": "im a gun owner and i have many guns and all but my mossburg 500 PGP have gun locks on them and id love to see a cheap biometric quick releace for that *thinks* maybe i could try to make one? XD TO SPARKFUN!@Tobywhats up your ass? it has everything a good hack needs … a group of devices that were never intended to be used together forced to work together perfectly to preform a task it was not intended to do for a good cause because he could not find somthing pre made that fits hhis needsthis is the posterchild for hardware hacking",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191850",
"author": "Derek",
"timestamp": "2010-10-05T23:57:56",
"content": "Amen",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191857",
"author": "Jake",
"timestamp": "2010-10-06T00:10:26",
"content": "@BiozzI have a mossberg 590 tactical in my closet, with one of those key locks that goes around the gun and through the trigger lock, and is bolted to a wall stud. Swapping the lock cylinder out for something electronic + biometrics would be AWESOME. This hack has inspired me ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191858",
"author": "Jake",
"timestamp": "2010-10-06T00:11:55",
"content": "Excuse me, that sentence doesn’t make sense. The lock goes through the trigger. It’s basically a wall-mount gun lock which secures it in 2 places, tip of the barrel and the trigger guard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191874",
"author": "bilbao bob",
"timestamp": "2010-10-06T00:52:25",
"content": "a long time ago, when big stereo speakers were part of every man’s legacy, I knew a guy who had not one but two .38 specials (semi auto) resting in his big old speakers using a specially routed opening which was lined with velvet. If you pushed on the butt, they would fall out into your hand. They were covered with little click into place frames that looked like a baffle.I should point out that he feared everyone, mostly because his dad had been a john birch society enthusiast. He was convinced that everyone was out to get him – the IRS, fluoride, communists, liberals, homosexuals and even the girl scouts. Poor guy.Still, I laughed like a jackass when his speakers got stolen. I was too young to be sensitive to the feelings of my older acquaintances. I think he must have spent thousands of dollars on an alarm system after that. Very very high tech.We would set it off by throwing beer cans into his backyard patio. I am not proud of this. Mostly I wonder how he managed to have that good of an alarm system in 1971. Incredible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191875",
"author": "bilbao bob",
"timestamp": "2010-10-06T00:58:36",
"content": "@Toby –>Ok, security through obscurity does not work.I beg to differ. All security is based on obscurity.All of it, even the kind offered by government agencies armed with a propaganda wing that would make Goebbels blush, or with sharks/KC-135 tankers with “frikken’ laser beams on them”.Obscurity works very, very well, especially if you have guns for backup. Or ice cream. I find that ice cream often makes an excellent alternative to most calibers of bullet, but I’m also weird that way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191901",
"author": "Greg",
"timestamp": "2010-10-06T01:36:45",
"content": "Wow, I made HAD! I guess I can die happy now. :-)Yes, some other security measures were employed but not depicted in the write-up. I figure if someone walks off with the safe they are getting whatever is inside it regardless. I only want to keep kids and my wife out of it and it is more than secure enough for that.If you want to see a video of it in action check it out on youtube.http://www.youtube.com/watch?v=ESQkK2sWgd4Thanks for all the positive comments!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191907",
"author": "xrazorwirex",
"timestamp": "2010-10-06T01:43:21",
"content": "Yeah, how many if you really think the airports are secure. All that BS they put you through (among other things) is to just make you FEEL safe and to scare away most people looking to do violence; most of which are pussies so it works.http://www.wired.com/threatlevel/2006/10/portrait_of_a_y/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191909",
"author": "biozz",
"timestamp": "2010-10-06T01:44:43",
"content": "@Jakei dont have a lock on my mossburg 500 because its my home defense weapon (im not supposed to own a handgun because of my age) i keep it next to my bed/couch and my biggest problem with locking it is if im jerked out of a sleep putting in a combination or finding and turning a key can be the matter of life and death and yet so can hitting it in my sleep or having the burger get to it before me so id love some sort of casing over it that all i have to do is swipe a finger … or hell maybe even read the rfid chip in my hand XD its potentially life saving … im going to try it you should to",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191920",
"author": "bilbao bob",
"timestamp": "2010-10-06T02:15:10",
"content": "@biozzYou know, a couch can hold more than loose change in the cracks beneath the back cushions.Mine has an authentic aluminum baseball bat, but you get the idea. Of course, at my little “toe hold”, a burglar would be so exhausted from climbing 4 floors and trying to figure out my magical locks that I’d easily be able to fix a bowl of ice cream for him and make fresh chocolate sauce before he could start ransacking the place.To this day, I’m always amazed that most people assume “Death by Chocolate” is an aphorism.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191929",
"author": "Jake",
"timestamp": "2010-10-06T02:39:05",
"content": "@biozzWell yeah, that’s what I’m saying – Have it blow the lock the moment you touch the sensor.I keep a Springfield 1911 and a SIG P232 on myself most of the time, so those guns are always somewhere near and ready. I keep the mossberg handy in the closet in case I need some extreme muzzle energy (Hornady high velocity slugs and buckshot loaded alternately in the tube).@blbao bobIs your baseball bat also Semi-Automatic? ;)Greg, this is a pretty cool hack. I love this combination of devices :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192076",
"author": "Mike",
"timestamp": "2010-10-06T09:10:56",
"content": "I agree with EdZ and Zundfolge :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192215",
"author": "Mr Hacker",
"timestamp": "2010-10-06T14:00:26",
"content": "look at how mythbusters did it , even your passport copy licked can crack a fingerprint lock",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192285",
"author": "bilbao bob",
"timestamp": "2010-10-06T16:40:57",
"content": "@Jake> Is your baseball bat also Semi-Automatic? ;)The penalties for gun possession in most euro-zone countries are very high. It’s also an instaban. Of course, this is also the only place I’ve ever seen someone get shot in the stomach during an argument.I’ve got some equivalents handy, but I find that the compact aluminum slugger makes an acceptable replacement, since my strategy is to kneecap them them and run like hell. I agree that knee capping is more effective with a .45, but this ain’t wyoming. :)In truth, one simply avoids being a cowboy and keeps out of the part of the city that resembles somalia town after the sun goes down.The biggest threats here are being pissed on by drunks and being accidentally stepped on by one of the 2 meter tall olympic build brazilian trannies in high heels as they stomp up and down the street hustling tourists. You could lose a toe, or worse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192321",
"author": "Whatnot",
"timestamp": "2010-10-06T17:49:41",
"content": "I keep a Mark IV series 12 nuke on the table by my bed but I need a secure access to the room where I keep my political torture prisoners, yeehawSo I can just convert this to a doorlock so the kids don’t torture the prisoners until they are 8 or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192515",
"author": "Spork",
"timestamp": "2010-10-06T23:53:51",
"content": "@Whatnot,Very adult decision. That’s why I like you, you’re always thinking of ways to keep the children safe and sane.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192960",
"author": "Whatnot",
"timestamp": "2010-10-07T16:49:37",
"content": "@spork Thank you, it’s nice to have your efforts appreciated while doing your bit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193141",
"author": "Alex",
"timestamp": "2010-10-08T00:06:33",
"content": "These days there are so many Heroin addicted, crazy convict, pants around the ankles, hackers out there; they would like nothing more than to defeat that gun safe. (I think it will be ok:)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,363.296799
|
||
https://hackaday.com/2010/10/05/munchausen-makes-nes-a-cartridge-programmer/
|
Munchausen Makes NES A Cartridge Programmer
|
Mike Szczys
|
[
"Nintendo Hacks"
] |
[
"bootloader",
"cartridge",
"flash",
"munchausen",
"nes",
"usb"
] |
What a beautiful image of NES cartridges showing their private parts. These are the raw materials for the Munchausen Flash Cartridge project. A combination of a modified game cartridge and special USB cable makes it possible to
program NES cartridges while inside an unmodified console
. The cartridge has an added flash chip that is running a bootloader. By connecting a USB-to-NES cable to the second controller port a game image (or custom code image) can be flashed to one of the three game slots on the writable cartridge. The bootloader provides a menu at power-up to select between the three stored images, or can go straight to the previously selected image by holding down A when the console is turned on. There’s even a recovery routine in case of problems. Check out the demo after the break.
One thing we find interesting from the forum thread is a mention that it is technically possible to run code on the NES directly from the PC. That would sure make it easy to
perform live chiptunes on NES
.
[youtube=http://www.youtube.com/watch?v=g1rB2BZTg3o]
[Tha
| 18
| 18
|
[
{
"comment_id": "191691",
"author": "Alex Rossie",
"timestamp": "2010-10-05T19:11:14",
"content": "Awesome, just plain awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191695",
"author": "JMLB",
"timestamp": "2010-10-05T19:12:23",
"content": "I’d like to see the code for the boot loader ;)very cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191696",
"author": "Gdogg",
"timestamp": "2010-10-05T19:12:24",
"content": "That is simply awesome.Playing a modded rom with a real controller on a crappy CRT would be my dream, and this makes it easy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191698",
"author": "arfink",
"timestamp": "2010-10-05T19:23:58",
"content": "Code and DIY instructions, as well as pre-made units for lazy people will be coming in the next few days/weeks. Keep an eye on my youtube channel or the chipmusic.org forum for announcements about the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191700",
"author": "Spork",
"timestamp": "2010-10-05T19:26:41",
"content": "@GdoggI know exactly what you mean. I tore one of my NES consoles apart and replaced all the pins. I lost the nostalgia of blowing in the carts, but now I can playBubble Bobble,NARC,Operation Wolf, orsomeotherfavorites. On my 13″ CRT.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191713",
"author": "JMLB",
"timestamp": "2010-10-05T19:45:32",
"content": "Great Ill keep an eye out :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191721",
"author": "s1500",
"timestamp": "2010-10-05T20:07:39",
"content": "Rom Maker! (if you were on atariage, you’d get the ref)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191729",
"author": "Shadyman",
"timestamp": "2010-10-05T20:26:28",
"content": "EPIC. My NES can’t wait.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191730",
"author": "NatureTM",
"timestamp": "2010-10-05T20:30:01",
"content": "“That’s hot.”–Paris Hilton",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191735",
"author": "boolean",
"timestamp": "2010-10-05T20:47:06",
"content": "Am I the only one sad about the death of a gyromite cartridge ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191800",
"author": "Brennan",
"timestamp": "2010-10-05T22:20:41",
"content": "Wow this is crazy, I’m working on almost the EXACT same thing, only it’s for the Virtual Boy and my cart has MicroSD for ROM storage and save support. My first prototype board should be here in a few days, I can’t wait!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191872",
"author": "arfink",
"timestamp": "2010-10-06T00:49:25",
"content": "@booleanNo gyromite was killed for this project, though I did house it in a spare gyromite shell. In fact, a Shingen the Ruler cart was killed, and the world needs to be rid of a few of those anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192069",
"author": "strider_mt2k",
"timestamp": "2010-10-06T08:53:37",
"content": "Absolutely wonderful!Hearty props, my friend.Hearty props.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192227",
"author": "Grey",
"timestamp": "2010-10-06T14:18:22",
"content": "another cool hack!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193042",
"author": "Cam",
"timestamp": "2010-10-07T19:43:27",
"content": "That’s a great hack. I’m curious though. Do you have support for multiple mappers or are you limited to one cart/game/mapper variety?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193228",
"author": "medwardl",
"timestamp": "2010-10-08T05:36:03",
"content": "I would love to buy one of these.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "195921",
"author": "arfink",
"timestamp": "2010-10-12T20:50:30",
"content": "@cam: Supports MMC1, NROM, and NROM+CHR RAM right now, might be software extensible later.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "368257",
"author": "s4x0r",
"timestamp": "2011-03-26T22:16:09",
"content": "I have been looking for something similar to do with a n64 cartridge. Anyone know how to do this?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,362.930123
|
||
https://hackaday.com/2010/10/05/a-ride-into-space-but-nothing-fancy/
|
A Ride Into Space, But Nothing Fancy
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"balloon",
"camera",
"gps",
"hand warmer",
"hd",
"iphone",
"parachute",
"space"
] |
[Luke Geissbuhler]
wanted to send something into space
, a fun project his kids could get in on too. Instead of
sending up a suite of electronic components
they went with consumer electronics. The key element, an HD camera to record the event, is protected by a styrofoam shell and soft foam padding. To help ensure that the device was recovered an iPhone also made the trip, running a GPS tracking program that continuously updated the package’s location. To combat the ill-effects of severe cold some chemical hand warming packs also joined the flight.
As you can see after the break, it was a success. The camera documented an incredible ride, with a balloon rupture at 19 miles above the earth (that must be a calculated height as there’s no altimeter in the package). The pod came down gently thanks to a parachute and was recovered just 30 miles from where it launched.
[vimeo=http://vimeo.com/15091562]
[Thanks Ferdinand via
Flabber
]
| 67
| 50
|
[
{
"comment_id": "191597",
"author": "fluidic",
"timestamp": "2010-10-05T16:07:04",
"content": "“Nothing fancy” is the best ride into space.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191600",
"author": "craig christ",
"timestamp": "2010-10-05T16:07:10",
"content": "Couldn’t the height have been acquired via the GPS?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191602",
"author": "Brad Hein",
"timestamp": "2010-10-05T16:10:16",
"content": "I found it amazing that it landed only 19 miles from its launch site! I like this project a lot!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191603",
"author": "Calv",
"timestamp": "2010-10-05T16:12:49",
"content": "Generally with these types of things the package goes above the height that the gps can be found. At 19 km it would def. be on the ultimate limit of what gps companies say they can do, anything above 15 km is probably moot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191605",
"author": "Brad Hein",
"timestamp": "2010-10-05T16:19:47",
"content": "Did you have to contact the FAA so they could issue a NOTAM?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191609",
"author": "andrew",
"timestamp": "2010-10-05T16:28:55",
"content": "Wow!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191611",
"author": "marks256",
"timestamp": "2010-10-05T16:29:40",
"content": "@Craig Christ: no, there’s no GPS signal that high up, and if there is, there is no 3G coverage that high up to transmit the coordinates.Someone please correct me if I am wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191612",
"author": "Brad Hein",
"timestamp": "2010-10-05T16:32:58",
"content": "@marks256 Actually… The GPS Signal comes from thousands of miles away, overhead, so of course there is a GPS signal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191619",
"author": "Daryl",
"timestamp": "2010-10-05T16:40:41",
"content": "@marks256: The International Space Station and Space Shuttle both use GPS… I don’t think it’s an issue of not having signal lock that high….@craig christ: I think that’s how they did it. I’m guessing the GPS app did more than just transmit the coords, but actually logged the data as well.I love this project! Keep up the good work Luke!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191622",
"author": "Russ Jenkins",
"timestamp": "2010-10-05T16:44:19",
"content": "Truely amazing project, well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191623",
"author": "jeremiah",
"timestamp": "2010-10-05T16:44:59",
"content": "there is most definitely GPS up there. There have been other balloon projects that have published their GPS coords for the entire flight, well above 15km.And GPS of course includes an altimeter, and even though it’s rarely displayed in consumer-level devices the data is there in the NMEA sentences.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191626",
"author": "matbed",
"timestamp": "2010-10-05T16:55:31",
"content": "as someone that actually does this i can tell you a few things: number 1 being that yes yu do get a gps signal that high up but 99.999% of gps units cut out when they go above 15km or 500m/s, there are a few that require both conditions to be met. this is a sftware thing not hardware . they are programmed to do this so they cant be used in missile guidance systems which makes it very hard for us to do our job. Im fairly sure the one in the iphone isnt one that would still function at 30km up.2: it is very easy to calculate the burst height if you know the spec of the baloon ad payload.3: coordinates are transmitted via radio in normal payloads so it keeps working at height.4: i guess they just the iphone to recover it as it would kick in again when the device landed, rather than to plot the entire flight",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191627",
"author": "dave m",
"timestamp": "2010-10-05T16:55:40",
"content": "I wonder if you could get more altitude by (partially) filling one balloon inside a (completely) filled second balloon. When the outer one bursts, the inner one is just getting to its working size.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191628",
"author": "rob",
"timestamp": "2010-10-05T16:55:52",
"content": "the satellites that make up GPS are in orbit about 12000 miles above the surface of the earth, so yeah, it still works up there.don’t know if the iphone’s gps gives you altitude or not, but if it does it probably won’t work over 60,000 feet because GPS receivers that can provide altitude information about 60k feet are evidently considered “munitions”. imagine how cheap of guidance system you could come up with for your ballistic missile if you could just slap a $99 iphone in there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191630",
"author": "matbed",
"timestamp": "2010-10-05T16:57:37",
"content": "also 5: yeah i guess they probs didnt have a notam but they could have gone from a site with a blanket notam if there are fellow hobbiests in their area",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191634",
"author": "Avik",
"timestamp": "2010-10-05T17:10:48",
"content": "@Brad:As far as I know, commercially available GPS systems operate at a maximum altitude of 60,000 feet. This is not because of technical limitations, but it has been set to this limit to prevent misuse of GPS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191637",
"author": "Kyle Ryan",
"timestamp": "2010-10-05T17:16:00",
"content": "There is a GPS signal but the iPhone would not be able to receive it. Commercial GPS ends at ~60,000 ft and 19 miles * 5280 ft > 60,000 ft, otherwise the military gets involved. Also the phone would have no way of relaying the position information back to the ground network. You could use a third party app with preloaded maps but you would not be able to access that info either since you can’t relay the the info back to yourself. Real time GPS feedback is pretty complicated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191638",
"author": "Velli",
"timestamp": "2010-10-05T17:18:26",
"content": "@craig and marks256:A GPS receiver that works above 11 miles is considered a munition by the US Gov’t. Most (some?) civilian units are programmed to conk out by then to prevent export headaches. GPS still works, the satellites will be far above you, but Geissbuhler should play stupid so as to avoid a visit from the dark suits. Also: foil hats, tres chic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191645",
"author": "Matt",
"timestamp": "2010-10-05T17:38:47",
"content": "Just like the many weather balloon launches before it, this has only reached the stratosphere, not space. A balloon is limited in its maximum altitude by atmospheric buoyancy, they cannot reach space. This isn’t slashdot or a daily newspaper, we don’t need sensationalist headlines.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191652",
"author": "drn74",
"timestamp": "2010-10-05T17:51:08",
"content": "simply amazing!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191659",
"author": "Stephen",
"timestamp": "2010-10-05T18:05:51",
"content": "@Matt:You’re right – this isn’t spaceflight. 19km is certainly a neat science project for a kid and his dad, but space doesn’t start until you get up to 100km (the Kármán line). That’s ignoring the fact that the exosphere (part of the atmosphere) starts at 690km.Regardless of the semantic quibbles, this is a great story. Loved it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191660",
"author": "Optimus_PrimeRib",
"timestamp": "2010-10-05T18:06:29",
"content": "@MattDislikeThis is too cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191662",
"author": "Mr Hacker",
"timestamp": "2010-10-05T18:07:45",
"content": "@Brad Heinbut , it only needs to transmit data while its below 2000 feet in the air were you wil even get 4.5g (just for finding where it fell) and for altitude and such stuff , it not only does broadcast the coordinates but it also logs it as well , so other than burning the iPhone s battery because the phone is searching for signals when its above 4000 feet and the use of iphone above the earth’s atmosphere which will trigger a top secret sensor for voiding warranties , the system he uses is more than perfect",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191663",
"author": "zool",
"timestamp": "2010-10-05T18:09:03",
"content": "i’m waiting for someone to do this but whith a rocket attached and when balloon pops the rocket fires and goes up even higher",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191664",
"author": "hacky97",
"timestamp": "2010-10-05T18:09:11",
"content": "That would be the coolest thing to do with my kid when he is aroud 9 years old! Your son will never forget this in his life…Way better than showing your kid your WOW stats to impress him.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191665",
"author": "Mr Hacker",
"timestamp": "2010-10-05T18:10:53",
"content": "@marks256but , it only needs to transmit data while its below 2000 feet in the air were you wil even get 4.5g (just for finding where it fell) and for altitude and such stuff , it not only does broadcast the coordinates but it also logs it as well , so other than burning the iPhone’s battery because the phone is searching for signals when its above 4000 feet and the use of iphone above the earth’s atmosphere which triggers a top secret sensor for voiding warranties , the system he uses is more than perfect",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191675",
"author": "Jeff",
"timestamp": "2010-10-05T18:29:05",
"content": "Waiver (which generates a NOTAM) is usually not required for hobby-sized balloons. Just a 48 hour advance notice of launch call to the local ATC facility.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191677",
"author": "Bill",
"timestamp": "2010-10-05T18:32:41",
"content": "Yet another balloon project. One person did it a year or two ago now it’s the ‘it’ thing to do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191680",
"author": "Decepticon",
"timestamp": "2010-10-05T18:44:35",
"content": "I am in awe of this home made video. It amazes me that an average person and family can produce something like this. Kudos to them!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191681",
"author": "lwatcdr",
"timestamp": "2010-10-05T18:50:26",
"content": "@marks256 you are wrong.Think about it. GPS is based on satillites in orbit so you would actually have a stronger signal up high.But GPSs used to be limited to under 60k ft “The limit of air space” or under 900 knts. These days I think they have changed the or to an and.As to cell phones. 60,000 is only 12 miles and it is straight up. You may get a cell signal there with no real problem if the tower is close enough. Cell signals tend to be limited by LOS and going up solves that problem. Of course signal strength could get to a problem if you are far enough from the tower.Oh and if you want a list of GPS’s that will work over 60khttp://showcase.netins.net/web/wallio/GPSrcvrsvs60kft.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191689",
"author": "Alan",
"timestamp": "2010-10-05T19:04:32",
"content": "Great project. The reason that the handwarmers didn’t help much is that they produce heat by oxidizing their contents with atmospheric oxygen. Once it is high enough to need heat there is so little oxygen that the handwarmer would produce next to no heat. A couple of batteries dumping into nichrome wire would have been a good idea, especially if a 0C switch was included.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191692",
"author": "Robert",
"timestamp": "2010-10-05T19:11:28",
"content": "WOW!!!!This is American Hacker Awesomeness!! (sic)These guys should run NASA!! Get down…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191699",
"author": "mad_max",
"timestamp": "2010-10-05T19:24:32",
"content": "Coolest. Dad. Ever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191701",
"author": "Robert",
"timestamp": "2010-10-05T19:27:50",
"content": "OMG!!! I watched it again…off the shelf s$!t!!Soooo Coool. Burt Rutan, give this guy a Job!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191708",
"author": "vonskippy",
"timestamp": "2010-10-05T19:38:12",
"content": "Meh.This is “see spot run” science.They took a bunch of off the shelf components, cobbled them together, couldn’t be bothered doing a few simple tests or some simple math to figure out battery life or duration of their heating “system” etc. and got a bouncy, twirly video that stoped minutes before their “mission” did for their efforts.Good for them having the disposable income to risk a few hundred dollars worth of geek toys – but this is hardly “rocket science” in the making.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191710",
"author": "Doktor Jeep",
"timestamp": "2010-10-05T19:40:39",
"content": ":-O",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191720",
"author": "jim",
"timestamp": "2010-10-05T20:03:19",
"content": "@vonskippywow, armchair father-son project critic. What have you done lately to give you the scientific or fatherly high-ground?Great work Luke, very inspiring to those of us looking at educational projects to do with with our children.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191751",
"author": "SparkyGage",
"timestamp": "2010-10-05T21:12:30",
"content": "Amazing! I’ll be showing this to my kids tonight!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191796",
"author": "ferdi",
"timestamp": "2010-10-05T22:08:49",
"content": "mmm i have upload this tiphack a day say nothing fancythe pepole think it,s cooli have see this on tv firstmy reaction WOW thats cooli want this to",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191803",
"author": "Leithoa",
"timestamp": "2010-10-05T22:22:26",
"content": "While not actually in space, had that been a manned flight the pilot would have had to have had their astronauts wings to fly it. And having raw footage of a journey that high is cool regardless of how easy it is to obtain.But I do have to agree, overstating achievments (in general, not just the article title) irks me and detracts from the truely wonderful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191810",
"author": "Addidis",
"timestamp": "2010-10-05T22:26:57",
"content": "This guy is the coolest dad ever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191821",
"author": "CMJ",
"timestamp": "2010-10-05T22:47:16",
"content": "This is a great family project. I would love to do somthing like this with my son when he get a little older.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191826",
"author": "ejonesss",
"timestamp": "2010-10-05T23:06:39",
"content": "not only a NOTAM but because of terrorism concern space may be controlled.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191892",
"author": "Jyro",
"timestamp": "2010-10-06T01:14:40",
"content": "Some students over at MIT already did this with their $150 space balloon project…with a Boost phone, beer cooler, and Canon camera running CHDK…..good details on their site – space.1337arts.com.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191910",
"author": "Ken",
"timestamp": "2010-10-06T01:45:20",
"content": "MIT students definitely did this same exact project first. It’s called Project Icarus, it’s very easy, you do not have to contact the FAA for any payloads under 4 lbs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192034",
"author": "CG",
"timestamp": "2010-10-06T07:25:15",
"content": "I think “A ride into the stratosphere”, while more accurate, sounds cooler too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192071",
"author": "strider_mt2k",
"timestamp": "2010-10-06T08:58:43",
"content": "Awesome project, but no altimeter?I think I would have tried to hack something in there, even if it’s just the iPhone’s camera on a regular meter taking pics occasionally.Still an incredible feat and some cajones risking your gear.I’d like to be the guy to take out his phone and say “let me tell you about where THIS litle baby was over the weekend…”Very cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192112",
"author": "LNM",
"timestamp": "2010-10-06T10:22:55",
"content": "I saw someone do the same but he put some extra effort in. He had a real time tracking system and balanced his payload so the camera doesn’t go round and round but delivers more stable images.The results were mapped into google earth so you can see exactly what the flightpath was.You can see the results on:http://hollandshoogte.wordpress.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192131",
"author": "jim",
"timestamp": "2010-10-06T10:56:08",
"content": "AFAIK consumer GPS switches itself off at a certain altitude. Presumably this is to make it more difficult for North Korea et al to produce guided missiles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192205",
"author": "kevin mcguigan",
"timestamp": "2010-10-06T13:39:25",
"content": "@matt whats the matter? are you that critical of everything? the project was great and the article was great. you are a sensational headline yourself.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,363.177677
|
||
https://hackaday.com/2010/10/05/build-a-beach-winch-for-wakeboarding/
|
Build A Beach Winch For Wakeboarding
|
Caleb Kraft
|
[
"home entertainment hacks"
] |
[
"wakeboard",
"waterskii",
"watersports",
"winch"
] |
Here’s a build log for
a nice beach winch
for your next trip out to go beachwinching. Beachwinching is when you use a fast winch on shore to pull you in, allowing you to wakeboard, wakeskate, or water skii without the need of waves or a boat or jet ski to pull you along. While there’s nothing amazingly groundbreaking here, we do love a nicely documented build log. We think a remote way to initialize the pull would be nice too.
You can catch an example video of beachwinching after the break
[youtube=http://www.youtube.com/watch?v=nciyAvHJZ7c]
| 16
| 16
|
[
{
"comment_id": "191566",
"author": "Hurz",
"timestamp": "2010-10-05T15:10:04",
"content": "If you can get your car close to the water, you can also use a wheel rim.related Video:http://www.youtube.com/watch?v=Zo_s83UStkA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191576",
"author": "Chris Muncy",
"timestamp": "2010-10-05T15:19:50",
"content": "Great project but I HATE projects that are posted on Instructables: Too many pages to dig through.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191577",
"author": "terribledamage",
"timestamp": "2010-10-05T15:22:45",
"content": "you must be kidding mounting it on a truck like that, it would break the hell off",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191594",
"author": "Lostafinger",
"timestamp": "2010-10-05T15:56:28",
"content": "How about a chain guard – talk about a lawsuit waiting to happen. Nice build though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191598",
"author": "noexit",
"timestamp": "2010-10-05T16:06:53",
"content": "Winches have been used for around 7 years, so this is nothing new, but is something that hasn’t shown up on hackaday before. This build is not optimal as it uses a centrifugal clutch. Everyone who knows how to build a winch will now use a Tav torqu-a-verter (think CVT), which improves winches pull strength to a night and day difference. If you want to build your own winch I suggest that you go to the wakeskating dot com forum and hang out in the winching area for a while.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191657",
"author": "yagi",
"timestamp": "2010-10-05T18:01:46",
"content": "A few friends of mine did something like this a few years ago. But they used a car as winch.You can see it here:http://www.youtube.com/watch?v=eLucYrayahAhttp://www.haggedicht-umanandafoin.de/index.php?option=com_zoom&Itemid=12&page=view&catid=553&PageNo=1&key=2&hit=1http://www.haggedicht-umanandafoin.de/index.php?option=com_zoom&Itemid=12&page=view&catid=555&PageNo=1&key=27&hit=1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191668",
"author": "hacky97",
"timestamp": "2010-10-05T18:19:06",
"content": "It would be more HAD when you would make your own “Tav torqu-a-verter”, When you hang out on a forum and build it from parts or buy one, I would not call it a “hack”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191733",
"author": "Tod",
"timestamp": "2010-10-05T20:44:58",
"content": "@hacky97You’re correct. This isn’t a hack and HAD specifically mentions why it’s here.Quote from description: “While there’s nothing amazingly groundbreaking here, we do love a nicely documented build log.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191743",
"author": "Rockout101",
"timestamp": "2010-10-05T21:04:01",
"content": "I was the person who posted the winch build on instructables. I have more winch plans availible on my website http:www.beachwinches.com. THanks for the comments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191923",
"author": "Patrick (not the right-wing one)",
"timestamp": "2010-10-06T02:22:53",
"content": "I prefer beach wenches, thankyouverymuch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191938",
"author": "CutThroughStuffGuy",
"timestamp": "2010-10-06T02:41:37",
"content": "So what do you do when the line snags around your ankle or wrists or neck and keeps pulling you along?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191957",
"author": "Michael Bradley",
"timestamp": "2010-10-06T03:42:39",
"content": "I was kinda wondering that? Just curious, but what about when a little kid gets in the way? I dive, and they are always getting in the way of my safety lines",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192032",
"author": "skot",
"timestamp": "2010-10-06T07:16:27",
"content": "If the rider falls (or gets the rope tangled, etc) the driver kills the engine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192132",
"author": "JB",
"timestamp": "2010-10-06T10:57:18",
"content": "‘Tis true that winches have been around for a long time (hell, I built one myself about three years back), and they are great fun on places where a proper boat or a jetski can’t get to (think ditches, canals or balancing ponds).Using them on the beach is good fun, but the salt water ruins the frame and drive components after a while. If you want something that lasts, use a non-corroding metal (Mmmmmm Titanium) for the drum and frame, and fit a water guard to the back of the drum so that it directs spray away from the engine. Oh yes, and make sure you wash the line after use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192516",
"author": "walt",
"timestamp": "2010-10-06T23:54:44",
"content": "cool. but I really hate instructables.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "194826",
"author": "Beach Winches",
"timestamp": "2010-10-10T22:16:23",
"content": "If you do not like instructables the same winch plan is posted on my website.http:///www.beachwinches.com",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,363.23068
|
||
https://hackaday.com/2010/10/05/bronze-casting-with-makerbot/
|
Bronze Casting With MakerBot
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"bronze",
"cast",
"coin",
"hackspace",
"makerbot",
"plastic"
] |
That
, dear readers, is the smell of a new Hackspace opening up
in Davenport Iowa
. It is also the lovely scent of burning plastic. Because how do you celebrate a new Hackerspace? By
casting bronze coins of course
!
Begin by having a MakerBot extrude plastic coins, then compact the plastic coin in sand to produce a mold. Heat up your bronze in a trashcan furnace and pour it into the mold. The plastic melts away and you’re left with a bronze coin.
There are probably some safety measures and precautions that should be followed as well…
| 16
| 16
|
[
{
"comment_id": "191545",
"author": "HeBD",
"timestamp": "2010-10-05T14:37:09",
"content": "medallion would be better than coin and to complete the cycle infill part of the medallion using the makerbot. dont forget to embed a rfid chip in the infill plastic for key-less access to the new hackerspace!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191549",
"author": "jamphat",
"timestamp": "2010-10-05T14:39:44",
"content": "looks like a steampunk horde insignia",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191554",
"author": "brad",
"timestamp": "2010-10-05T14:43:31",
"content": "that’s great! having done a lot of lost-wax and lost-styrofoam casting, i’m a big fan! if you could get the makerbot to extrude in styrofoam, you might end up with a casting with sharper edges and more detail due to the more rapid vaporization.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191581",
"author": "Drake",
"timestamp": "2010-10-05T15:33:37",
"content": "@brador wax as you pointed out. You would just need a good handle on temperature control. Not to hot as it would be runny and not to hard as it wouldnt stick.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191596",
"author": "Grovenstien",
"timestamp": "2010-10-05T16:00:14",
"content": "Rolls Royce use the lost wax process to form internal jet engine blades. Replacing the wax and growing a single crystal of steel. Very cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191607",
"author": "Drake",
"timestamp": "2010-10-05T16:25:37",
"content": "@grovensteino.O didn’t know you could grow steel crystallised!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191618",
"author": "The Moogle",
"timestamp": "2010-10-05T16:39:30",
"content": "lol link shows how to cast aluminum… been there done that :-Dhttp://wtfmoogle.com/?p=1047bronze now that is a different storry",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191640",
"author": "brad",
"timestamp": "2010-10-05T17:23:46",
"content": "@DrakeI had thought of mentioning the wax, but i figured the temperature control would indeed be an issue. it would probably be a lot cheaper to use paraffin if those hurdles were cleared.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191653",
"author": "Taylor Alexander",
"timestamp": "2010-10-05T17:51:54",
"content": "Only partially related, but I got an e-mail from a rapid proto company that does 17-4PH stainless steel at basically full strength. I had them ship me some samples… and man, this is the future. The parts looked pretty good, and the surface finish after polishing was great. As additive manufacturing machines become more common and cheaper, they’re going to take the world by storm. This stuff really will change the world.Seems like laser sintering is the way to go. I wish we could get a makerbot that could do that!High powered lasers are still pricey… but they’re going down! They’re working on 100KW (yes… 100KW) solid state lasers for weapons, and were up to like 60KW two years ago. As we advance this technology and simplify solid state lasers… we’ll be able to make SLS machines on a budget just like MakerBots now.The future is gonna be awesome.-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191740",
"author": "David",
"timestamp": "2010-10-05T20:59:02",
"content": "does anyone know if laser sintering could be done with aluminum powder or would that tend to be a lesson in why the Hindenburg went boom?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191769",
"author": "Amos",
"timestamp": "2010-10-05T21:18:08",
"content": "They actually didn’t use a lost-pattern process at all. The article mentions wooden frames (plural) and parting dust, which means they used a standard two-part, green sand mold. Lost-wax is mentioned, though, so I can understand the confusion.@David: It wouldn’t “go boom” without the oxidizing power of rust (cf. thermite) but it would still oxidize into uselessness, unless you did it in an inert atmosphere, like nitrogen, or no atmosphere i.e. a vacuum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191772",
"author": "Amos",
"timestamp": "2010-10-05T21:23:01",
"content": "Also…I read in PopSci or somewhere a few years back about a selective sintering unit that used a focused halogen lamp instead of a laser. I can’t find the mag or info online… Anyone know more about this? It sounds doable in a makerbot-style hobbyist machine (maybe not fusing metal, but some kind of plastic powder, at least).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191825",
"author": "Ben Ziegler",
"timestamp": "2010-10-05T23:00:52",
"content": "This write-up is a little misleading. I work with Dave at QC Co-Lab, and he’s doing green sand casting, in a similar process to the foundry 101 link. We reuse the plastic piece, impressing a new sand form for each bronze piece. Lost wax casting is capable of much more accurate reproduction, but the mold is destroyed with each piece.We do all the hot work outdoors in a shaded area to avoid fumes. Being out of direct sunlight makes it easier to gauge the temperature of the metal. Models with a draft or taper will part from the mold easily, giving a better cast – we had to tweak draft angles and feature sizes to get good detail, one reason the coins turned into medallions:) Some light sanding on the plastic helped, too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191853",
"author": "Cynar",
"timestamp": "2010-10-06T00:00:18",
"content": "If you want to use wax, just use makerbot to make a negative mould. Then just pour in the wax and use that to cast. As an extra, the mould is reusable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192114",
"author": "Pup",
"timestamp": "2010-10-06T10:23:26",
"content": "Wouldn’t the plastic coin be removed before pouring in the metal?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "194184",
"author": "Fred",
"timestamp": "2010-10-09T23:18:42",
"content": "@Drake All (or at least most) solid metals are crystalline, it’s just that most of the time, the metal is made up of many small grains with their crystal lattices oriented in different directions. Certain applications can’t tolerate this, so they employ heat treatment methods to cause all the grains to either grow or shrink, until there is only one grain. Sometimes in steel you can see what appears to be a camouflage pattern of different colors and reflectances. This occurs because large grains of the steel are oriented along different axes with respect to each other and the light, so they interact with the light differently.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,362.74341
|
||
https://hackaday.com/2010/10/04/photo-booth-in-briefcase-form/
|
Photo Booth In Briefcase Form
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"briefcase",
"canon",
"case",
"lenovo",
"pelican",
"photo booth",
"photoboof"
] |
Taking portability one step further [Marty Enerson] built
a photo booth in a roll-away case
. The Pelican mobile case houses an Elo Touchscreen, a Canon PIXMA iP3000 photo printer, and a Canon Powershot SD100 digital camera. Most of this, including a Lenovo laptop to run it, was purchased second-hand from eBay, with a copy of
Photoboof
(different from the
wedding photo booth
from last week) to tie up the software side of the project. He plans to add a folding stand later on to make it into a kiosk. For some reason that sparks the image of a voting booth in our minds.
| 12
| 12
|
[
{
"comment_id": "190989",
"author": "biozz",
"timestamp": "2010-10-04T22:12:36",
"content": "i wanna see a stereoscopic 3D photo booth XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190994",
"author": "lee",
"timestamp": "2010-10-04T22:22:43",
"content": "Does anyone know of free software that’s as feature packed as this one? A license for this costs $600…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191015",
"author": "wifigod",
"timestamp": "2010-10-04T22:51:40",
"content": "@leehttp://www.openphotobooth.com/download.phpLooks promising, but I haven’t actually tried it and its still fairly new.PS: LOOOVVEE me some Pelican cases! Great setup. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191041",
"author": "strider_mt2k",
"timestamp": "2010-10-04T23:28:53",
"content": "Agreed.Pelican cases rule.Really cool work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191273",
"author": "CutThroughStuffGuy",
"timestamp": "2010-10-05T06:11:02",
"content": "+ 2 points for the pelican case. -10 for losing the water tightness of said pelican case.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191291",
"author": "MRE",
"timestamp": "2010-10-05T06:43:14",
"content": "Yeah. Would have been better if he hadnt cut the case. Open it like a book. As is, you cant ship it, and that screen is ready to get broken.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191327",
"author": "Malikaii",
"timestamp": "2010-10-05T07:41:32",
"content": "I wonder how he decides which paper will print.There better be a 2.0 version of this with such modifications as:-using an ITX platform instead of a laptop-accessing the ITX board through the touch screen instead of pulling the unit out to do “testing”-making a cover for that touch screenI’m sure someone will come up with more suggestions. Overall good idea though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191466",
"author": "fartface",
"timestamp": "2010-10-05T11:47:01",
"content": "$600 for the craptastic software? Holy crap!Um no. There are 30 better ones that cost less and do a hell of a lot more.This one is an epic fail based on a choice of low grade high priced software.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191571",
"author": "Mog",
"timestamp": "2010-10-05T15:12:11",
"content": "Everything’s “an epic fail” to you, fartface. Fuck off, troll.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191961",
"author": "Marty Enerson",
"timestamp": "2010-10-06T04:02:04",
"content": "I could still make it waterproof with a little work, but that may be the next version.I DO want to put a small fanless PC inside without the laptop, but I had just taken the laptop out of a full size booth I have to mock it up. Depending on the size of the printer, you could make it even smaller.The software is expensive, but worth it if you rent out a booth a couple of times. It will easily pay for itself. Plus, you get lifetime upgrades for free and he upgrades the software a lot.PS – good call on fartface.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191964",
"author": "Marty Enerson",
"timestamp": "2010-10-06T04:15:06",
"content": "I could still make it waterproof with a little work, but that may be the next version.I DO want to put a small fanless PC inside without the laptop, but I had just taken the laptop out of a full size booth I have to mock it up. Depending on the size of the printer, you could make it even smaller.The software is expensive, but worth it if you rent out a booth a couple of times. It will easily pay for itself. Plus, you get lifetime upgrades for free and he upgrades the software a lot.PS – good call on fartface.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "655717",
"author": "Varun Mehta",
"timestamp": "2012-05-21T14:20:27",
"content": "I was trying something similar, but with a trunk rather. Few questions;– How did you put the wire holders without making a hole through the other side?– How did you support your camera for easy access or memory card removal ?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,362.793016
|
||
https://hackaday.com/2010/10/04/from-sign-language-to-spoken-language/
|
From Sign Language To Spoken Language
|
Mike Szczys
|
[
"Wearable Hacks"
] |
[
"arduino",
"flex sensor",
"mega",
"sign language",
"speakjet",
"voicebox"
] |
As part of a senior design project for a biomedical engineering class [Kendall Lowrey] worked in a team to develop
a device that translates American Sign Language into spoken English
. Wanting to eclipse
glove-based devices that came before them
, the team set out to move away from strictly spelling words, to combining sign with common gesture. The project is based around an Arduino Mega and is limited to the alphabet and about ten words because of the initial programming space restraints. When the five flex sensors and three accelerometer values register an at-rest state for two seconds the device takes a reading and looks up the most likely word or letter in a table. It then outputs that to
a voicebox shield
to translate the words or letters into phonetic sounds.
| 30
| 30
|
[
{
"comment_id": "190886",
"author": "fluidic",
"timestamp": "2010-10-04T20:14:03",
"content": "Now that’s how you use an Arduino.Can it be ARM time now? Triple bonus score given the application.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190889",
"author": "grenadier",
"timestamp": "2010-10-04T20:15:49",
"content": "Kick ass!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190895",
"author": "Erik Johnson",
"timestamp": "2010-10-04T20:22:24",
"content": "Now if/when they remake “Congo”, the gorilla won’t have a huge backpack housing the electronics",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190907",
"author": "zool",
"timestamp": "2010-10-04T20:34:18",
"content": "no video?only the alphabet and ten words?not too usefulif you’re going to have this huge thing on, why not just use something that does text to speech in a handheld devicei bet she got an A thoughit’s a pretty good use of all those parts",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190922",
"author": "Eirinn",
"timestamp": "2010-10-04T20:45:37",
"content": "@zool do you know what a prototype is? :) although i’ll admit, video please.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190931",
"author": "grenadier",
"timestamp": "2010-10-04T20:53:11",
"content": "@zoolNot too useful? Give this to koko the gorilla!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190935",
"author": "klowrey",
"timestamp": "2010-10-04T20:56:38",
"content": "@zool @Eirinn we did have a video for the class, but it encompassed the engineering design process rather than the device’s function–biomed class, not ece. and it was embarrassing.best i can offer for now ishttp://www.flickr.com/photos/45901891@N07/5046901595/in/photostream/at least until i can get v2 up",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190983",
"author": "jzoe",
"timestamp": "2010-10-04T21:59:57",
"content": "@zool- why not just text to speech? Because ASL is not the same thing as spoken or written english. The grammar and sentence structure is not the same- it is its own independent language. In the same way that Babelfish could take French or German text and make an approximation in English, this is a first step toward such a thing for ASL.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191011",
"author": "Whatnot",
"timestamp": "2010-10-04T22:44:24",
"content": "The alphabet in sign is done with the hand alone AFAIK, but words are often done with the whole arm and both hands and arms together, so obviously the easiest initial attempts would be to do the alphabet.And you can use the accelerometers to track the arms but not only does it get more complex but also not everybody moves the same, and you have to discard the movements not part of the message between the words.It’s truly an interesting challenge that in the end might also give you something useful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191020",
"author": "NatureTM",
"timestamp": "2010-10-04T22:58:18",
"content": "I like projects with a conscience, very nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191030",
"author": "tjb",
"timestamp": "2010-10-04T23:16:12",
"content": "ASL also uses facial expression and situation awareness to communicate. I think these kinds of things are cool.I can attest that a knowing even a few signs can make communication much better. I did an event this weekend with a deaf group. I only know yes,no, and a couple of other signs. We got the job done in short order. After all was said and done my wife shows up (who is fluent in ASL) and then we could really communicate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191033",
"author": "Hirudinea",
"timestamp": "2010-10-04T23:21:17",
"content": "Could this be adapted to using signing over then internet, for sign practice, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191062",
"author": "Spork",
"timestamp": "2010-10-04T23:59:10",
"content": "Having this as a starting platform someone could develop some very useful hardware.I’ve just been learning ASL the last few months and it comes very naturally. I think a device like this could be useful for learning ASL as well as allowing ASL speakers to communicate with non-ASL speakers. Though the device has limitations, it is a big step in bridging the signed/spoken-language gap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191065",
"author": "rasz",
"timestamp": "2010-10-05T00:01:59",
"content": "“Now that’s how you use an Arduino.”Yes, you use it so your project has to be limited to 10 words …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191077",
"author": "fluidic",
"timestamp": "2010-10-05T00:20:03",
"content": "@rasz It’s called a prototype for a reason, aye?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191179",
"author": "crzy",
"timestamp": "2010-10-05T02:35:22",
"content": "Pretty cool, man. Good luck building upon it!I have to say that one of the most rewarding projects I did a few years ago was creating a campus-wide visual communications system for a Deaf school…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191190",
"author": "blue carbuncle",
"timestamp": "2010-10-05T02:52:11",
"content": "huh huh uh huh huh “Ya could use it on your thingy”“Yeah Yeah” Heheheheheh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191435",
"author": "Gijs Molenaar",
"timestamp": "2010-10-05T10:38:44",
"content": "I’m just finishing my Master Thesis project about translating hand gestures into sound using computer vision:http://code.google.com/p/sonic-gesture/maybe you think it is interesting",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191440",
"author": "gordon",
"timestamp": "2010-10-05T10:52:47",
"content": "@rasz“Now that’s how you use an Arduino.”Thats right you use a cheap and simple system to work out some of the wrinkles and then you expand the project as you work out what you need.Then you dont waste your money or time on an all dancing and singing over specced system that you end up discarding because its not suitable after all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191488",
"author": "pff",
"timestamp": "2010-10-05T12:24:26",
"content": "Its a good project, but its not really the best solution. deafs are all ready born with the disability, why should they have to buy this thing just to interact with the world. teach sign language in schools instead of making deafs even more of a curiosity. Stephen hawking gets enough jollies poked at him for his voice box, i cant imagine this would be any better than that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191543",
"author": "Kaity",
"timestamp": "2010-10-05T14:32:20",
"content": "In theory this is cool, I do love the movie Congo. But ASL is so complex you would need the machine to have facial sensors, pretty much a whole body suit to understand grammar. Plus it would need to be so sensitive to understand classifiers and context. I don’t think it’s very logical but it still looks cool and I’m sure was fun to work on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191608",
"author": "xtreker15",
"timestamp": "2010-10-05T16:25:52",
"content": "“Bad gorilla…. Bad gorilla” please record a video for youtube. thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191610",
"author": "J. Swift",
"timestamp": "2010-10-05T16:29:28",
"content": "I came here to note that the deaf will probably start complaining about it, and lo and behold I see that pff has already beaten me to the punch by bitching about it.There is no reason the entire nation should be forced to learn that curiously terrible language called ASL. Rather, we should focus on creating prosthesis devices such as this and “deaf culture” be damned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191644",
"author": "pff",
"timestamp": "2010-10-05T17:34:28",
"content": "There is far more reason for people to learn sign language than any other language. Think about it logically, if we could reduce the number of languages we could get it down to 2, a spoken language for talkers, and a sign language for deafs.if we should be getting rid of any languages, it should be one of the rubbish languages, like that one African one where they click *click click bop*.sign language is necessary, other languages are not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191719",
"author": "????",
"timestamp": "2010-10-05T20:01:46",
"content": "Where can you find those flex sensors?? I tried ebaying and amazoning with no results!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191778",
"author": "bluewraith",
"timestamp": "2010-10-05T21:38:54",
"content": "to ????:http://www.sparkfun.comhas a few.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191963",
"author": "rasz",
"timestamp": "2010-10-06T04:12:42",
"content": "btw those flex sensors are so frickin simple in design its almost amazing. I didnt even had to read the patent (noticed “patented technology blablabla” all over sparkfun shop). Looks like flexible resistive band with glued metal pads, when you bend it metal pads touch less and less and make the band more resistive, when its straight metal pads conduct most of the current and you only get resistance that is between them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192229",
"author": "J. Swift",
"timestamp": "2010-10-06T14:25:12",
"content": "@pff: Ok, you try telling all the deafies of the world “Ok, we’re all going to ASL, so you foreign people had better drop whatever sign language you know now and learn ASL”. There are plenty of deaf people who refuse to teach their children lip-reading because DEAF CULTURE. Can you really just magic away all the other sign languages? If you manage that, for my 2nd wish I want every country to speak English, and for my 3rd wish I want a toilet seat made of solid gold.Sign language is only necessary until we figure out how to fix deafness. I’d rather fix deafness and have my kids learn Spanish, or Chinese, or German, or any number of languages that have actual grammar and tense and don’t require twisting your face up like a drunken gorilla.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192778",
"author": "PlastBox",
"timestamp": "2010-10-07T08:59:26",
"content": "A for effort, but the idea itself is a complete fail. As someone who knows sign language quite well, I can attest that signing isn’t all that much about the signs at all. You have to speak, gesture and sign at the same time. Sooo many signs have a plethora of different meanings, it’d be completely impossible to use a glove like this to translate anything other than the alphabet (where each character has it’s own, distinct sign).Also, most deaf people can in fact make themselves well understood using their voice (most get special training for this) or by writing on a cell phone etc. The “problem” is communicating the other way around, so a device that translated voice into signs would be far more useful, not to mention possible to create.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193108",
"author": "????",
"timestamp": "2010-10-07T22:19:59",
"content": "You think I could disassemble a Nintendo power glove to get at the 5 flex sensors?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,363.038114
|
||
https://hackaday.com/2010/10/04/more-openwrt-image-building-for-the-dockstar/
|
More OpenWRT Image Building For The Dockstar
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"dockstar",
"freeagent",
"openwrt",
"samba",
"seagate",
"subversion"
] |
[Der_picknicker] wrote in to let us know about a guide to
building OpenWRT images for the dockstar
(
translated
). What they end up with is a nice little network attached storage device that runs SAMBA and subversion under the umbrella of OpenWRT. We looked at
flashing and building OpenWRT
images for this device back in July. The development branch of OpenWRT hasn’t quite reached a stable release yet, but much has been done in the last few months.
The machine translation is a little rough, but the compilation process is easy enough to follow. If you don’t care to slog through compiling (which apparently takes 1-2 hours) they’ve also made their images available for download. It should be possible to flash via SSH but you might want to
add a serial port to the device
just to be safe.
| 11
| 11
|
[
{
"comment_id": "190843",
"author": "Mr_Bishop",
"timestamp": "2010-10-04T19:28:57",
"content": "You darn Germans and your awesome skills with hacking/modding. But quick question why is this better then the default firmware? Other then its the legendary OpenWRT (my shatty Linksys routers wont let me play with OpenWRT). I meancan I do SSH with this or is it samba only? because honestly I am at the point in my educational career where if it ain’t got SSH I don’t trust it. (hehe I said ain’t)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190859",
"author": "ssh",
"timestamp": "2010-10-04T19:45:50",
"content": "@Mr_Bishop last lineIt should be possible to flash via SSH but you might want to add a serial port to the device just to be safe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190925",
"author": "BLuRry",
"timestamp": "2010-10-04T20:46:33",
"content": "PlugApps is evolving quite nicely, for anyone who doesn’t mind running Arch Linux off of an attached drive rather than the tiny onboard NAND. Either way you go, definitely look into replacing the bootloader firmware early on. :-)I chronicled my setup here:http://plugapps.com/index.php5?title=Ten(ish)_steps_to_setting_up_a_Segate_Dockstar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190942",
"author": "jaybles",
"timestamp": "2010-10-04T21:01:03",
"content": "just picked one of these up last week on 1saleaday for $17 n.i.b",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191026",
"author": "nave.notnilc",
"timestamp": "2010-10-04T23:06:26",
"content": "personally, the main reason I installed debian on mine was to get sftp for personal fileserving. also it’s useful as an always-on IRC box and for tunneling stuff through ssh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191167",
"author": "Marc Icelake",
"timestamp": "2010-10-05T02:09:32",
"content": "@Mr_Bishop“I meancan I do SSH with this or is it samba only?”you probably meant:“What do I want to do with it…?”I’ll order a dockstar with a dslr wireless file transmitter embedded, please :)http://opossum.posterous.com/dockstar-dramatis-per-sonare-or-the-neo-50-di-0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191194",
"author": "johnx",
"timestamp": "2010-10-05T02:58:01",
"content": "I went the same route as nave.notnilc. I flashed a new uboot that lets me boot any kernel I want from an attached USB drive. Right now mine is running Debian squeeze with linux 2.6.34.Right now mine is just acting as a relay for the IR receiver for my MS MCE remote. It has a little IR receiver dongle plugged in that originally came with an IR transmitter as well. I used an 1/8″ mini-plug (headphone cable) to connect from the ‘IR transmitter out’ to the ‘S-Control In’ on my Sony TV. Presto! Works like a charm and now I can change channels from the command line. :)-John",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191455",
"author": "Hurz",
"timestamp": "2010-10-05T11:26:25",
"content": "Offtopic: Google Translate is better than i thought. It translates “ein kuehles Blondes koepfen” (to decapitate a cool blonde) 100% correct to “drink a cold beer”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191469",
"author": "fartface",
"timestamp": "2010-10-05T11:56:46",
"content": "Aint got SSH I dont trust it….you must really suck at running networks.I trust telnet in my private network because I’m not a idiot and let it get taken over. Telnet works great inside trusted networks.How do I connect to it from the net then? well if you have this burning need to telnet into your hard drive dock from across the globe there is this secret thing called VPN…But it’s really hard to do and requires people who know “puters” to set it up.If you dont trust your own network, then you suck at what you do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191616",
"author": "GZ",
"timestamp": "2010-10-05T16:38:34",
"content": "There’s lots of activity. People have added USB to DVI adpaters, USB sound, just about anything you can want. Granted, not under DDWRT but under debian. Lots of debian on dockstar action at forum.doozan.com.Pretty much anything you’d do with a headless server you can do on the dockstar, it’s just a little on the light side with 128MB.The serial hack is a good idea, but it’s not required. Having a linux box or live disc so you can get into a bad USB config is helpful but even that’s not needed as you still have the default OS to boot into.This is fairly safe for a novice hacker, especially with it’s low price point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192225",
"author": "lwatcdr",
"timestamp": "2010-10-06T14:15:14",
"content": "@Mr. BishopWell you could run a torrent client on it.A webserverUse it as web cam server.The list goes on and on.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,362.978465
|
||
https://hackaday.com/2010/10/04/125-off-the-evalbot-is-a-steal/
|
$125 Off The Evalbot Is A Steal
|
Mike Szczys
|
[
"HackIt"
] |
[
"arm",
"cortex-m3",
"coupon",
"discount",
"evalbot",
"stellaris",
"texas instruments",
"ti"
] |
When you see $125 off something you probably assume it cost several times that to start with. Nope, this drastic discount leaves just $25 plus shipping. Use coupon-code: 2JLP-R4XRT3
when ordering the little rover
. There’s a quick video snippet of it embedded after the break.
What you’ll get is a Stellaris ARM Cortex-M3 microcontroller on a board with a bunch of goodies.
MicroSD slot
USB host and device connectors
I2C audio with speakers
Ethernet connector
96×6 OLED display
Motors
Optosensors
Bump detectors
As always,
we want to hear about the hacks
you come up with once you have this little guy in hand.
[update, the code is now expired]
[final update — Someone from TI explains what is going on.]
—- from the comments.
As some posts already note, the coupon code is only available to ESC Boston attendees. That said, we’re psyched about all of your interest and understand there seems to have been some confusion, so TI plans to fulfill all of the finalized orders to date. We’re working on some logistics in getting the code up and running again for ESC Boston attendees, but proof of ESC registration will be required. Stay tuned.
We hear you about the e-store and are working as quickly as possible to avoid issues in the future. Thanks for your patience.
Bottom line – we’re glad to see the excitement around EVALBOT and look forward to checking out your projects! We encourage you to share them on our e2e Forums at
http://e2e.ti.com/
-Jean Anne Booth, Texas Instruments
——-
[youtube=http://www.youtube.com/watch?v=dQPyZPQcyKI]
[Thanks GDM]
| 518
| 50
|
[
{
"comment_id": "190735",
"author": "Spork",
"timestamp": "2010-10-04T17:43:30",
"content": "Cool little device, I’d buy it if I had an extra $25 laying around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190737",
"author": "biozz",
"timestamp": "2010-10-04T17:51:14",
"content": "damn you new creditcard laws making it so i cant get a card >_<",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190740",
"author": "Spork",
"timestamp": "2010-10-04T17:53:49",
"content": "@biozzCurious which laws those are.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190741",
"author": "Brennan",
"timestamp": "2010-10-04T17:54:31",
"content": "That’s a sweet board for an even sweeter discount, but unfortunately I probably won’t have time to learn that platform.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190746",
"author": "Zach",
"timestamp": "2010-10-04T17:58:49",
"content": "I do have 25 bucks laying around so I ordered one!Can’t wait to play around with it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190747",
"author": "onlinepharmacy",
"timestamp": "2010-10-04T18:00:20",
"content": "yeah…brilliant video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190748",
"author": "dubyaohohdee",
"timestamp": "2010-10-04T18:01:01",
"content": "arduino bot is missing arduino?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190752",
"author": "xeracy",
"timestamp": "2010-10-04T18:03:52",
"content": "TI’s Store is under severe duress… the HaD effect? i doubt it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190756",
"author": "tim",
"timestamp": "2010-10-04T18:09:47",
"content": "too late :(it is back to 149$",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190759",
"author": "biozz",
"timestamp": "2010-10-04T18:12:22",
"content": "@Sporkin my state (or the usa idk which) as of September 1st you need to be 21 in order to apply for credit or have a cosigner that is a family member with good credithttp://articles.moneycentral.msn.com/Banking/YourCreditRating/under-21-no-credit-card-for-you.aspx",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190761",
"author": "xeracy",
"timestamp": "2010-10-04T18:13:55",
"content": "@tim, did you make it all the way to check out where you could enter the coupon code? I’ve spent 10 min on TI’s site and cant get there. They are being slow as shit today, and frankly, i dont want one of these bots that much, no matter how much of a steal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190762",
"author": "Ian",
"timestamp": "2010-10-04T18:16:33",
"content": "Ordering one. It’s a very cheap platform. And $25 is $25…I can skip driving for a week!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190767",
"author": "Bill",
"timestamp": "2010-10-04T18:17:48",
"content": "Umm, why such a lame video?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190771",
"author": "tim",
"timestamp": "2010-10-04T18:25:52",
"content": "xeracy, and where do i get this coupon code ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190772",
"author": "Chris Muncy",
"timestamp": "2010-10-04T18:26:11",
"content": "I got mine coming! I couldn’t pass it up. Look at all of the hardware you get for $25.00! And if this is like the MSP430, I’ll either get it tomorrow or in 2 months :p.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190773",
"author": "jgunn",
"timestamp": "2010-10-04T18:26:49",
"content": "Actually, it’s $25 including shipping – which is pretty sweet. As xeracy pointed out, the site is super slow at the moment, but eventually I got through.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190774",
"author": "Eric M",
"timestamp": "2010-10-04T18:28:11",
"content": "I would buy it if their site wasn’t broken…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190776",
"author": "xeracy",
"timestamp": "2010-10-04T18:29:27",
"content": "@tim “Use coupon-code: 2JLP-R4XRT3 when ordering the little rover.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190777",
"author": "lamont",
"timestamp": "2010-10-04T18:29:29",
"content": "After 15 or so minutes slowly going through their checkout process, it finally denied me saying they think I’m a bot. Oh, the irony. I think I eventually got the order through after another 15 minutes, in that I got email confirmation, but their site is seriously crap.Seriously though, the stellaris stuff is awesome, crazy fast, and I really like that you just need a single usb cable to load, communicate and debug under windows or linux.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190778",
"author": "Necromant",
"timestamp": "2010-10-04T18:30:29",
"content": ".aspx…Hehe, no wonder they are HaD effected…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190780",
"author": "Malte",
"timestamp": "2010-10-04T18:32:46",
"content": "When I ordered mine about 45 min ago (right after this post came ot) the TI store was still working fine (and fast), so this is definetly related to the rover. The code did work though, i got it for 25USD with free shipping to germany.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190782",
"author": "Bill",
"timestamp": "2010-10-04T18:34:17",
"content": "There store has been trashed. I got:“Your activity has been detected as a Bot or Spider by our system. If you believe you are seeing this message in error you can Retry the checkout after one minute.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190783",
"author": "Spork",
"timestamp": "2010-10-04T18:36:02",
"content": "@biozzAfter reading the PDF on the law it seems that if you can prove you have “a means to pay it back” they can issue you a credit card. Having this vague of wording means that you could simply send them a bank statement with something like 3x the credit limit and they could issue the card, or any type of pay stub would qualify you, I’m sure.Seethis linkfor the PDF.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190784",
"author": "Elizabeth Greene",
"timestamp": "2010-10-04T18:36:29",
"content": "Just received my order confirmation. Thanks HaD!Now to figure out how to program this thing… :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190786",
"author": "bigzo",
"timestamp": "2010-10-04T18:37:21",
"content": "I think its a con, i go through all the ordering process and i comes up Bot Activity Detected! When i continue the price is up to $149 and asks me to continue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190787",
"author": "Brad Hein",
"timestamp": "2010-10-04T18:38:47",
"content": "Sight super slow, slashdotted? err hackaday’d? :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190789",
"author": "Tim",
"timestamp": "2010-10-04T18:41:10",
"content": "Sweet. And for some reason, shipping was included, so it was $25 total! Yay!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190790",
"author": "tim",
"timestamp": "2010-10-04T18:42:26",
"content": "haha, am i stupid, the coupon code is on the home page.But now i have finished the order and i have the message:Bot Activity Detected!is it a joke ???",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190791",
"author": "Anon Ymous",
"timestamp": "2010-10-04T18:42:30",
"content": "@biozz – Credit is a trap, the most aggressively baited trap you’ll ever have chance to step in.ONLY borrow money if what you are borrowing it for will increase in value. Ever.If you are jonesing for online shopping, a Visa or Mastercard debit card tied to a checking account from a local bank or credit union will work swimmingly. Failing that, you can get a prepaid visa/mastercard from Walgreens, CVS, Wal-Marts, or most gas stations. Caveat Emptor, the fees on prepaid cards are commensurate to their convenience.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190792",
"author": "Jason",
"timestamp": "2010-10-04T18:42:33",
"content": "Thanks Hackaday. I actually have a different Stellaris eval board that I like a lot. Thinking I should only need minor toolchain changes to get working with this. Also, the coupon still worked for me and it said my shipping was included.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190793",
"author": "Xandrios",
"timestamp": "2010-10-04T18:43:26",
"content": "And thats the biggest issue with these eval boards. The software to program them is not free – at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190795",
"author": "Peter",
"timestamp": "2010-10-04T18:43:41",
"content": "Just ordered one. I can’t believe they’re even giving out free shipping to the UK! i did have to select some random things for my ‘companies’ end products, but they dont explicitly disallow non-corporate customers (that i could see). Lets just say i wont be surprised if i get an email saying they’ve cancelled my orderHowever, when (if) i get a confirmation email with an estimated ship date, i may purchase a second one. you know, so the first wont feel lonely? (have to justify it somehow :))",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190796",
"author": "xeracy",
"timestamp": "2010-10-04T18:43:51",
"content": "I cant get passed the Customs Information popup that they keep throwing at me.. FML",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190798",
"author": "Bergo",
"timestamp": "2010-10-04T18:45:26",
"content": "stuck on the customs information page, second drop down isn’t loading.Anyone know if the coupon code was supposed to be entered before or after customs info?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190799",
"author": "Bill",
"timestamp": "2010-10-04T18:46:07",
"content": "Got my order in. Had to go through customs form twice, and past the bot detected warning once. Just keep at it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190801",
"author": "NatureTM",
"timestamp": "2010-10-04T18:47:22",
"content": "estore.ti.com must be on a dialup connection…Only took me 20 minutes to place my order with an existing account. Still, it wasn’t as frustrating as Sparkfun’s free day. Four computers running 3 OS’es on 3 separate connections couldn’t get me the goods that day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190802",
"author": "mugsy",
"timestamp": "2010-10-04T18:47:58",
"content": "Be patient, it works. Took me close to 30 minutes to get all the way through only to be told I’m a bot. But it worked the second go-’round. Thanks HaD!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190803",
"author": "bigzo",
"timestamp": "2010-10-04T18:48:19",
"content": "Just to let you know, my order went through on the 3rd atempt. The site must be getting high traffic. Don’t process the order after the Bot thing or you’ll be charged the full amount.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190804",
"author": "xeracy",
"timestamp": "2010-10-04T18:49:42",
"content": "wow, finally got it in at 11:45am pst. took 30 min and lots of reloading. finally placed the order and no confirmation screen appeared, but it shows up on my account page, so i guess i got it in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190805",
"author": "NoX",
"timestamp": "2010-10-04T18:50:51",
"content": "I haven’t been able to resist the temptation :-)The TI store is very slow at this moment, but the customs popup loaded without too much problem…BTW what are you declaring you are going to use it? I put “Drive DC motors” but I don’t think it matters… I could easily think in 100 different applications for it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190807",
"author": "NatureTM",
"timestamp": "2010-10-04T18:52:01",
"content": "P.S. Thanks again, HaD. I <3 U.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190810",
"author": "Bergo",
"timestamp": "2010-10-04T18:53:57",
"content": "Almost…ordered…I’ve put in my CC info.. and hit pay……loading…LOL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190811",
"author": "Jaguarius",
"timestamp": "2010-10-04T18:54:20",
"content": "So, I am in the process of ordering one now but I can’t find much info out there. What exactly can you DO with this board? I see a few comments stating the programming tools are probably pretty damn expensive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190812",
"author": "compukidmike",
"timestamp": "2010-10-04T18:54:23",
"content": "For those stuck on the customs page where the second drop-down doesn’t load, just click the submit button, and it will yell at you about it, but it also enables it so that you can choose! Good luck.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190813",
"author": "profil",
"timestamp": "2010-10-04T18:54:25",
"content": "What do you need to use/program it? As I can see you don’t need anything except a usb cable, can someone verify this?Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190814",
"author": "UltraMagnus",
"timestamp": "2010-10-04T18:56:50",
"content": "what use is wired ethernet on a robot? srsly?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190817",
"author": "Chris Muncy",
"timestamp": "2010-10-04T18:57:29",
"content": "Looks like the eStore is down. Coworker cant get in at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190818",
"author": "chemicaloliver",
"timestamp": "2010-10-04T18:57:57",
"content": "Yeah, it looks like cool hardware for a great price, just nobody knows how to use it and the documentation comes in a $100 book",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190819",
"author": "Jason",
"timestamp": "2010-10-04T18:59:08",
"content": "I have the stellaris lm3s6965 eval board which also has an oled display, ethernet port is also cortex M3 based, and I use a free toolchain to develop for it. I can’t say for sure, but I imagine this board would allow for the same.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190820",
"author": "chango",
"timestamp": "2010-10-04T18:59:28",
"content": "@Jaguarius There are commercial compilers, but Codesourcery open-sourced their patches to GCC for Cortex-M3.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,362.879122
|
||
https://hackaday.com/2010/10/04/wood-burning-house-heater/
|
Wood Burning House Heater
|
Mike Szczys
|
[
"green hacks",
"home hacks"
] |
[
"burning",
"danger",
"heater",
"rocket stove",
"wood"
] |
Dabbling in alternative heating technology, [Rob Steves]
built a wood stove
to dispose of his scrap wood while negating his home’s fire insurance at the same time. As the leftover bits from his wood projects started to stack up he wondered how he would dispose of them. Burning the bits for heat means he’s using every last bit of the lumber. The internal tank from an electric water heater was repurposed as a combustion chamber, with exhaust gases escaping through some high-temperature flexible tubing. The glass panes were removed from one of the fireplace doors to give the off-gases a place to go. The result is
a rocket stove
that burns very hot and does a great job of warming his house.
It’s not the safest way to heat a home, and there may be coding issues with your municipality. But this might go well in a remote location, like
that cabin where you have to generate your own electricity
.
[Thanks HybridBlue]
| 59
| 50
|
[
{
"comment_id": "190708",
"author": "Bergo",
"timestamp": "2010-10-04T16:39:18",
"content": "hahaany everyone was complaining the laser hacks were unsafe…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190709",
"author": "osgeld",
"timestamp": "2010-10-04T16:43:11",
"content": "love the cardboard … hope the exhaust doesn’t get too hot",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "837898",
"author": "Tjgorla",
"timestamp": "2012-10-26T18:25:25",
"content": "No the exhausts does not get hot enough to burn the cardboard you can keep your hand on the exhaust without getting burned.",
"parent_id": "190709",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "190716",
"author": "NatureTM",
"timestamp": "2010-10-04T17:03:03",
"content": "Not the type of “coding issues” we normally see around here…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190719",
"author": "mess_maker",
"timestamp": "2010-10-04T17:07:40",
"content": "Wow, I misread the title as: “House burning wood heater”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190720",
"author": "Adrian",
"timestamp": "2010-10-04T17:08:01",
"content": "Had to doublecheck my RSS reader whether I was on the There I Fixed It blog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190722",
"author": "Will",
"timestamp": "2010-10-04T17:10:01",
"content": "That can not possibly be up to code. Single-wall flex vent, angling down? I sincerely hope his smoke detectors are working. And that he has an escape plan.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190733",
"author": "fartface",
"timestamp": "2010-10-04T17:39:37",
"content": "Yup because burning the wood in that FIREPLACE is not an appropriate place to have a fire….I get a kick out of people’s projects to replicate the function of another piece of equipment they have already.Dave! give me those parts off that car there…. Let’s build a CAR!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190750",
"author": "Ben",
"timestamp": "2010-10-04T18:01:48",
"content": "This isn’t as bad as it looks. The whole point of a rocket stove is that the draft is created in the central chimney, not in the flex tubing. By the time the exhaust gets to the flex tubing, it should be have given up most of its heat energy through the water heater shell and thus be relatively cool. Since the draft is created and maintained by the insulated central chimney, the exhaust tube can be oriented level or slightly downward and still work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190760",
"author": "Adam",
"timestamp": "2010-10-04T18:13:30",
"content": "@fartface – except that’s not what this is. Fireplaces are horribly inefficient, sending most of the heat up the chimney, as well as pulling cold air into your house. This would, at least, take care of part 1 of that equation.So your burn is like, totally burned",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190779",
"author": "Queeg",
"timestamp": "2010-10-04T18:31:36",
"content": "I see dead people.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190794",
"author": "xorpunk",
"timestamp": "2010-10-04T18:43:31",
"content": "cant wait for the electricity hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190825",
"author": "Bhima",
"timestamp": "2010-10-04T19:09:20",
"content": "Most of these comments are pretty pathetic. So far only two commenters seem to understand what a rocket stove is and I wonder if anyone else even bothered to read the article. If you aren’t going to read the article why comment?Having said that, I suspect that the exhaust tubing is slightly too long and the exhaust gases give up too much heat energy before entering the chimney, so they do not create a strong enough updraft. Naturally that would require a different material to replace the glass instead of cardboard (which is poor choice despite the temperatures involved). Alternately it could be that his house is too airtight and that providing a less restricted source of outside air for combustion would help. Then of course making a longer exhaust tube would be beneficial.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190831",
"author": "medix",
"timestamp": "2010-10-04T19:18:47",
"content": "@Bhima: You forget one critical point: Looks and first impressions are everything. Yes, it looks clean, and is (possibly) safe, but it still appears shady as hell.If it works and the house doesn’t burn down, great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190845",
"author": "bilbao bob",
"timestamp": "2010-10-04T19:30:29",
"content": "In a place where electricity is expensive [nuke+coal+shifty politics] and wood is scarce from the greece effect [too many people, too little land], I have a friend who runs a not-quite legal wood furnace. It started off as an experiment in building a pizza oven in his rural[*] town. He makes pizza for the neighbors from time to time, and bread once in a while.It’s very high tech, and when it gets very cold in his concrete house, he fires it up and uses it to circulate heated air in his house with a fan.He designed the heat exchanger using cad and it’s pretty cool. CO detectors, thermocouples, and a setup in the heat exchanger where he can pull out the built-up creosote somehow. I guess it’s pretty nasty stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190858",
"author": "Luke",
"timestamp": "2010-10-04T19:44:25",
"content": "You could also look into building a masonry heater, same basic concepts, fast, hot burning, efficient heat usage, they use stone or ceramic to store and radiate heat. They are generally enormous, but smaller single-room heaters are often used.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190882",
"author": "ejonesss",
"timestamp": "2010-10-04T20:09:40",
"content": "if you are up to sneakily committing insurance fraud you can rig the stove such that you can remove it when the house is on fire.so then when the fire marshal and insurance adjusters come down to investigate they find no evidence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190884",
"author": "Hugh",
"timestamp": "2010-10-04T20:11:50",
"content": "What the hell he has money for a house but not for heating? Typical american idiot.I hope he at least plant new trees on the place of those what he cutting out.I would so laugh on him if his house would burn down from this :DStupid shit would sell his house and move into a flat nearby he would have enough money for years to pay the bills.Not to mention you have to keep putting the woods into this every day. I like to spend my day with making breakfast, showering, watching tv when I’m at home, not putting fucking woods into the heater and worrying about then it might burns the house down lol.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1064376",
"author": "djk",
"timestamp": "2013-09-24T14:35:37",
"content": "Hugh, you are a suitable case for psychiatric help",
"parent_id": "190884",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "190904",
"author": "Setatx",
"timestamp": "2010-10-04T20:30:44",
"content": "@Hugh – Not trying to flame, but it’s not about having the money to pay for electic/gas heaters, it’s about not wanting to give $$ to the oil company’s robbing all of us blind here in america. The same reason people are looking for alternate sources of fuels.Indeed he does have enough money for a house, which means he understands how to use his money, which in turn means he knows where HE wants to put his money, not where you want him too.At the original topic, I like it! I agree the cardboard needs to maybe be replaced with something a little more dependable but it’s a unique mod and combination of some existing technologies.Remember people, it’s not about if it’s worth it for us to it, it’s about being ABLE too =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190919",
"author": "ICanRead",
"timestamp": "2010-10-04T20:42:31",
"content": "I agree with Bhima. Most commenters clearly don’t know what they’re looking at and didn’t read the article. I did so let me summarize: A rocket stove is not like an ordinary wood stove. If it looks “shady” it’s because you’re thinking of regular wood stoves that are just one big combustion chamber. Most of the device shown is actually the heat exchanger. It’s big so it can transfer lots of heat at relatively low (ie safe) temperatures. The small square tube on the front is the combustion chamber and it only burns a handful of wood at a time. That’s the only part that gets hot enough to be a fire hazard and it’s oriented away from anything flammable. If the exhaust temperature is only 60 degrees C as claimed, there’s not much of a danger there. Based on the author’s comments (no visible smoke and no smell) it seems to generate enough draft. I’d take the assessment of the builder/user, rather than speculate after only looking at a picture.@Hugh: Apparently you didn’t even read the first sentence in the article on THIS page. He built it to efficiently burn scrap wood. What would you do instead… take the wood to the landfill, or burn it outside, wasting all the energy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190954",
"author": "bilbao bob",
"timestamp": "2010-10-04T21:18:16",
"content": "@Hugh – haters gonna hate.I’ve lived in the US, UK, China and France, and apart from the ever-increasing tendency towards becoming a bankrupt banana republic run by a handful of cronies, it’s an OK place. also, we have lots of stupid people here, but we really need stupid people around to keep the folks who want to run everything busy.Had you been less interested in bashing, you might have noticed that he has wood scraps – little bits of wood – left over from other things. Rather than throw them away, he is burning them to save money.Not everyone is ready or willing to accept the city hamster habitat lifestyle you’ve adopted, but since you are share the same attitudes you assign to others, you cannot understand this.I live in a city and prefer the urban life, but now that night clubbing and passive entertainment have lost their charm, I sometimes dream of living in the back country again before I get old. I don’t no how to explain the non-economic benefits of that lifestyle.As for risk – he’s 1000 times more likely to die of Carbon Monoxide poisoning than from his house burning down. Fire isn’t that hard to control.I’m guessing you’re down on guns, and on people raising their own food as well?PS – I just realized that no one has mentioned pot bellied stoves.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190991",
"author": "Abbott",
"timestamp": "2010-10-04T22:17:04",
"content": "@bilbao bob:You’re right on the money. Pot-bellied stoves have been used for decades before central heating, and are safe if maintained.The same applies here. The rocket stove is simply a more advanced design, and every bit as safe _if maintained_",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190992",
"author": "Xb0xguru",
"timestamp": "2010-10-04T22:17:55",
"content": "Welcome to ‘Kludge-a-day’.Before you hate, I read the article. I saw no mention on Carbon monoxide detectors.Ask yourself why this isn’t commonplace in the home?is it:a) Big bad oil companies conspire against the common man to make them use their overly-priced fuel.orb) Fuel into the home is fed into equipment which has passed numerous safety checks, is fitted by qualified engineers (at least in the UK) and can be used by the occupant without the risk of burning the place down (as the perforated sheet metal won’t stop all embers from spitting out) or die from CO poisioning.It really wouldn’t surprise me if this story reaches the national press for the wrong reasons.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191207",
"author": "Drake",
"timestamp": "2010-10-05T03:33:10",
"content": "I personally would have the burner outside, insulated graciously. Then I would have a largish copper coil wound within. Small electric pump + old car radiator = safer heater.Then again some of my engineering is on the redneck-ish side",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191228",
"author": "DeadlyDad",
"timestamp": "2010-10-05T04:25:21",
"content": ":sigh: Every time I read clueless comments like a lot of these here, I find myself wishing for an incoming asteroid. Seriously, people, is itreallyso hard to think for yourselves, and spend just 5 minutes to check some facts before opening your mouth and removing all doubt? Hell, I came back up for air aftertwo hours, utterly fascinated by the possibilities. For example, one design made with not much more than a couple of coffee cans and perlite for insulation can boil a litre of water with a single 8″ piece of 1×6. Alarger scale modelis still only a weekend project. If you nay-sayers had bothered to read the article (with the background of a little bit of research), you’d know that he wasn’t exaggerating about the exhaust line only reaching 60C, and that he expects the scraps in the tub to last an entireweek. Plus, because the whole point is tocompletelyconsume the wood, there is no creosote buildup to worry about, let alone carbon monoxide or smoke; it emits mostly carbon dioxide and moist air. As for why it isn’t commonplace, how about the fact that it was only invented 18 years ago? Some of you people, I swear… not with both hands and a map.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3513215",
"author": "Phil Stevenson",
"timestamp": "2017-04-07T18:16:48",
"content": "Well DeadlyDad – I couldn’t agree more.. You know I’ve read so many worthless comments on different things (not just here) there everywhere. Somehow these people wake up every morning having to get someone to help them to the bathroom because they forgot where it is… Why don’t they just keep there mouth shut so the rest of us can be inspired.. They will never do it( to lazy)and the don’t want anyone else to either. If you gave them chock-let cake and ice cream it would be to much of one or not enough of the other.. JMHO",
"parent_id": "191228",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "191245",
"author": "Osgeld",
"timestamp": "2010-10-05T05:02:52",
"content": "60C (140F) is still kind of hot, not enough to ignite paper but still hot enough to melt the glue in the cardboard possibly causing some ignition issue (in the absolute worst case over a long period of time with a freak chance of a red hot ember bouncing around)cheese n crackers, get some drywall or concrete board scraps, if nothing else the cardboard is a turd on a otherwise ok project (if you want to forgo insurance on your house …)heh maybe next he can use some crap yellow walmart 5 min epoxy to link the steering column on his homebrew funnycar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191256",
"author": "macona",
"timestamp": "2010-10-05T05:32:09",
"content": "Its not a bad design. Putting the combustor outside would be silly with such a small firebox. You would loose more heat out of the house going inside and out that anything.Three things stand out to me. It did not appear to be mounted down in any way. I would worry someone could knock it of the ledge.Most code requires 18″ of non flammable material around the unit. Like concrete, steel, or tile.And as mentioned install a CO detector in the house. With this system you could easily get a inversion and push the fumes back into the house.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191304",
"author": "RobSteves",
"timestamp": "2010-10-05T07:15:54",
"content": "Hi all. I’m the builder of this stove and I’ve read all your comments with interest. I’m glad some of you extended me the same courtesy (ie by reading my article before commenting).To address some of your concerns:Will I die of carbon monoxide poisoning? Unlikely. The stove cannot operate for more than about 30 minutes unattended. That’s how long it takes to consume all the wood that fits in the combustion chamber. Stop feeding the fire and it goes out… by design. If you don’t enjoy feeding a fire, perhaps this stove is not for you. CO is odorless and colorless; it’s virtually undetectable on its own. However in a wood stove CO is invariably accompanied by smoke, which is neither odorless nor colorless. You can smell its presence at levels much lower than are visible. This stove is no more likely to leak CO than an ordinary fireplace or commercial wood stove, but if it did you would be more likely to notice the smoke immediately since the stove requires tending so frequently. If you weren’t tending the stove, the worst case scenario is you might smoke up your house a bit before the fire extinguished itself. Assuming you have smoke detectors (I do), they would go off long before your carbon monoxide detector. If the exhaust gets blocked, or there is an inversion, the fire will go out immediately since there will be no draft and thus no oxygen supply. That’s one of the benefits of a down-draft design. Basically… it’s safer than an ordinary open fireplace which will continue to burn quite happily even if the chimney is plugged or the flue happens to be closed.Will I burn my house down? Unlikely. For reasons given by ICanRead the surface temperature of the body is low and poses little risk of igniting anything. The parts that do get hot are not near anything flammable. Sparks are a greater threat, but having tended many fires in ordinary fireplaces and commercial wood stoves I can say without a doubt that they pose a much greater threat than this stove. To do any harm, a spark must jump about 12″ straight up through a maze of unburned scrap wood (only the bottom of the pile burns)… and then get through the screen. It just doesn’t happen.Will the stove fall over? Sure… if you push it hard enough. So will a bookcase or a refrigerator. The stove is quite heavy so it would take a concerted (ie intentional) effort to push it over.Does it take a qualified engineer to build and install a wood stove? If it makes anyone happier, I do have two engineering degrees, a B.A.Sc in Mechanical Engineering and M.Eng in Electromechanical Design. Thomas Edison didn’t have any and he got by pretty well. I’m not comparing myself to him… just making a point. People need to get out of the mindset that “only an expert can deal with a problem” and start manipulating their own world to suit themselves. By doing so, they will become experts (the ones who survive, anyway). The less reliably you can predict an outcome, the more possible outcomes you need to be prepared for. Know the dangers. Assess the risks. Exercise an appropriate level of caution. And most of all, be ready to accept the consequences of your actions if you choose not to build to code (if there is one). Follow those guidelines and little is outside the realm of the backyard tinkerer.Best comment award goes to Osgeld… “if nothing else the cardboard is a turd on an otherwise ok project”. Agreed… it was a makeshift solution that has to go, not because it poses a risk but because it’s a focal point for people who don’t know what 60 degrees C is (a typical cup of coffee is 75 degrees C and combined with the morning newspaper poses a greater fire hazard than the exhaust pipe on this stove).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191306",
"author": "Malikaii",
"timestamp": "2010-10-05T07:22:12",
"content": "It looks to be sitting very precariously on the edge of that ledge. Hope he doesn’t have kids.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191392",
"author": "Diago",
"timestamp": "2010-10-05T09:17:15",
"content": "@Xb0xguru. Gas fitters are NOT engineers. In the same way that nurses are not doctors, paralegals are not barristers.It’s obvious that both of your reasons contribute to why this stuff isn’t commonplace yet. That the concept is only 18 years old and the majority of consumers opt for convenience (gas or electricity) over price and self sufficiency.My uncle is building a rocket stove type barbecue which is giving some good initial results, and I’m sure the principle has many great uses. Anyone know of any commercial uses?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191425",
"author": "Laurenceb",
"timestamp": "2010-10-05T10:10:41",
"content": "omg fire its…. DANGEROUYS WERE ALL GOING TO DIE OMG OMG !!!!1111seriously hackaday calm the fuck down. If you care to read the article it warns you about the possible risks – anyone over the age of 5 should be able to appreciate that this is perfectly safe if used appropriately.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191454",
"author": "pod",
"timestamp": "2010-10-05T11:21:58",
"content": "Wood burning house, heater",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191467",
"author": "fartface",
"timestamp": "2010-10-05T11:53:15",
"content": "@adam, he is using an open flue fireplace for exhaust.. Losing 90% of the heat he is creating anyways.I fully understand what was built, and it’s implementation is retarded because all the gains are lost by opening a giant chimney in the home to act as a heat siphon.His efficiency is not much higher than a regular fireplace that was designed right.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191535",
"author": "Whatnot",
"timestamp": "2010-10-05T14:17:03",
"content": "Those flexible aluminium tubes are not meant to be used for this, they have a limited ability to handle heat.And he should not only have smokedetectors but carbon-monoxide ones too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191557",
"author": "ben",
"timestamp": "2010-10-05T14:51:32",
"content": "How do you get the initial updraft started? I understand that once you have heat flow, you have a constant draft pulling fresh air down through the combustion chamber and then up the inside chimney, but how do you get that cycle started in the first place?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191563",
"author": "Paul",
"timestamp": "2010-10-05T15:07:49",
"content": "Very cool, never knew about rocket Stoves before. Took me a while to fully get the ideas involved, a search for images/diagrams of “rocket stove” helped me get it.The preheating of the intake air with the exhaust to maintain high fuel burn efficiency, is very similar to what they do in power plants: preheat the intake water, with the lower pressure exhaust steam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191591",
"author": "bilbao bob",
"timestamp": "2010-10-05T15:46:09",
"content": "@Whatnot – The tube is aluminum, and even if it were made of aluminum foil, it can easily get to 475F without deforming. It just looks tacky.@fartface – actually, it’s a substantial improvement, even if that doesn’t mean much. The common home fireplaces in north america are really, really inefficient, and even the best ones suck out a substantial portion of the heat they generate. The only way to get useful efficiency is with a radiator/blower mechanism, which never happens.@RobSteves – Absolutely correct. However, the desire/ability to actively manipulate and shape the world around you has been bred out of many societies, especially in former colonial powers.Many people raised as city-mouse consumers cannot distinguish between “research/design/prototype/fabrication” and “Here, hold my beer for a minute.” activities.My philosophy (suitable for everyone) is that I answer only to God, Darwin, and the golden rule. This is a little radical for France, but as Hank Williams Jr. sang, a country boy can survive.Having said that,>CO is invariably accompanied by smokeis a demonstrably false statement. However, given the speed with which air is sucked out by the design, I’m guessing it isn’t a problem unless you have long (24+ hr) temp inversions and your house gets covered in snow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191633",
"author": "Velli",
"timestamp": "2010-10-05T17:05:41",
"content": "My house came with a fireplace insert with a monster heat exchanger that wraps around the entire bottom, back, and top of the thing (all inside the fireplace, so it looks clean). It has an electric fan, and if I turn it all the way up, it sucks so much heat out of the firebox that the FIRE GOES OUT.That design could be copied and make a very nice, attractive, “safe” hack. This hack is skeery.Also, WHERE IS TEH ARDUINO?! NOT A HACK!(Thanks! Keep throwing nods to the hackers out here that don’t run on batteries!)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191676",
"author": "Will",
"timestamp": "2010-10-05T18:32:32",
"content": "Ok, having spent a fair amount of time looking at rocket stoves and what not, I will partially retract my earlier comment. It does not look like he’s going to go and burn down the house, and the design of the stove effectively controls the CO risk.I’m still leery of the venting, though. More effectively coupling the vent to the chimney flue is a must. I’ve seen some kits for gas fireplaces that run two flex vents (one for exhaust, one for combustion air) down a standard flue, which would seem ideal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191911",
"author": "DeadlyDad",
"timestamp": "2010-10-06T01:52:35",
"content": "Hmmm… Good point, Velli. An Arduino could be used to monitor the combustion chamber and the room, and maintain a set temperature in each by automatically feeding wood pieces in from a ‘magazine’.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191924",
"author": "bilbao bob",
"timestamp": "2010-10-06T02:23:22",
"content": "@DeadlyDadMy god, Man! You’ve rediscovered the lost pellet stove technology of the PNW tribe! Of course, in those days, they did it with a funky chip called the Z80, but that was almost 3 decades ago.@willWe eagerly await your build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191943",
"author": "DeadlyDad",
"timestamp": "2010-10-06T02:51:35",
"content": "@bilbao bob: Heh. Ironically enough, tomorrow I’m going to be talking to the owner of a local business that sells pellet stoves. They’ve taken a real pounding because their clients are feeling pressure from the gov’t to get rid of their wood stoves, and a pellet-fed rocket stove could possibly save their business.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191945",
"author": "Tachikoma",
"timestamp": "2010-10-06T02:52:44",
"content": "This place is full of safety experts…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192033",
"author": "RobSteves",
"timestamp": "2010-10-06T07:24:55",
"content": "@fartfaceAssuming complete combustion, efficiency is primarily a function of exhaust temperature. Every kg of wood burned produces about 4.5 kWh of heat energy (incidentally, my stove burns about 2 kg of wood per hour so it has about 9 kW of heat output). Some heat goes into the exhaust, some goes into the room. The amount in the exhaust can be calculated from the exhaust temperature. Complete combustion requires about 6 kg of air per kg of wood. The exhaust is still mostly air (or rather nitrogen). Raising the temperature of 6kg of air to 60 degrees C requires around 0.1 kWh of energy. Thus out of 4.5 kWh of energy produced, 4.4 goes into the room and 0.1 goes out with the exhaust. That’s about 98% efficiency. I’m not suggesting I actually achieve that. Truly complete combustion is not achievable even in a rocket stove, but a rocket stove IS much more efficient that typical fireplaces or wood stoves that achieve less complete combustion, have much higher exhaust temperatures (200-300 degrees C) and draw much more air through them than what is needed for combustion (perhaps 4 to 5 times more). Do the calculation above with 4x the air flow and 4x the exhaust temperature rise and you get 1.6kwh lost to the exhaust and only about 65% efficiency which is probably typical of a common wood stove (and still much better than a common fireplace).@WhatnotThe flexible aluminum tubing is designed for exactly these temperatures. It is dryer ducting for clothes dryers. Have you ever measured the temperature of the exhaust exiting your clothes dryer? I have. It’s about 70 degrees C. I guess it’s a fire hazard too. LOL@bilbao bob,I do use a CO detector. I just don’t believe it’s necessary. I have it only because I used to have a natural gas hot water tank which is a much greater CO risk in my estimation since the fuel supply is essentially infinite, operation is unattended, and it runs even when I’m asleep.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192041",
"author": "RobSteves",
"timestamp": "2010-10-06T07:33:08",
"content": "@benI light the stove with a propane torch to get down to the bottom of the combustion chamber. Pointing the torch into the stove for a few seconds is all that’s needed to start the draft. Usually there is already a bit of draft anyway. If there is even a slight breeze outside, the venturi effect causes a lower pressure in the fireplace than in the house.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192055",
"author": "Malikaii",
"timestamp": "2010-10-06T08:07:03",
"content": "Very professional responses sir.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192212",
"author": "Eikka",
"timestamp": "2010-10-06T13:51:28",
"content": "@RobStevesOne of the points you forgot is, that wood contains water and hydrogen, which will eventually turn into water and steam as the wood is burned. More energy is lost in evaporating that water than is lost in heating the air.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192711",
"author": "RobSteves",
"timestamp": "2010-10-07T05:55:20",
"content": "@EikkaI didn’t forget it, but didn’t mention it because water vaporization losses are not as significant as you think and because they will be exactly the same whether you burn the wood in a fireplace, wood stove, or rocket stove. The 4.5 kWh per kg I quoted already assumes wood with a 20% moisture content (typical of air dried wood) and is just a ballpark figure (it varies a little depending on the species). 1kg of wood at 20% moisture contains about 0.17 kg of water. The energy required to raise 0.17kg of water from room temperature to 100 degrees C and vaporize it is about another 0.1 kWh. Including that figure in the calculation only drops the efficiencies by a couple percent… to around 96% for the rocket stove and 63% for an ordinary wood stove (actually the wood stove will be a little lower since more energy is lost raising the 0.17kg of water vapor from 100 degrees C to the 200 or 300 degrees C exhaust temperature).In any case, the biggest source of error in my “back of napkin” calculation is more likely the invalid assumption of complete combustion. Unlike exhaust temperature and moisture content, completeness of combustion is not easily measured (though it will certainly be higher in a rocket stove).You said this was “one of the points” I forgot. Anything else?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192836",
"author": "Mr Foo",
"timestamp": "2010-10-07T11:05:24",
"content": "@RobStevensThat’s an impressive device you’ve built there, despite a few relatively obvious failings that you’ve noticed or have had pointed out to you on the comments for your blog (and not the ones here, which seem mainly clueless). Well done.A few (more or less random) questions…You’d suggest your stove is ~9kW, with a hypothetical efficiency of ~95%. That would place it in the same ballpark as a 14kW insert with an efficiency of ~65%, right? I ask this because a 14kW insert is roughly what I’m about to need, and I have access to a lot of steel (including, oddly enough, old hot water cylinders) for nothing. Yeah, you can see where I’m going, I’m sure.I assume it has a pretty much on/off heating profile, would you consider that could be improved with some form of thermal mass whilst keeping the form factor similar? I’m thinking along the lines of “form a load of concrete inside the cylinder” as a potential solution.Have you considered running the exhaust through a heat exchanger to eke a few more watts out?What are you doing about the inevitable corrosive effects of the lower-temperature exhaust – a “standard” fire will generate less nitric oxide, and its exhaust should be hot enough to push the nitric acid “enhanced” exhaust out into the atmosphere instead of letting it condense on the walls of your chimney",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193766",
"author": "RobSteves",
"timestamp": "2010-10-09T04:40:33",
"content": "@Mr FooGreat questions. 95% (ish) is the theoretical efficiency assuming complete combustion and no additional air passing through the system than necessary to support combustion. I haven’t thought of any simple way to actually measure completeness of combustion or the amount of excess air consumed, but I would guess the stove has an actual efficiency in the ballpark of 80% while an inexpensive wood stove might be around 50% (the 65% I mentioned above also assumed complete combustion).The heating profile is on/off as you say and could be improved by adding thermal mass. Concrete inside the cylinder is an interesting idea. It would work well for permanent installation but would add considerable weight to a portable design.One option I’ve considered is to use a gas hot water tank instead of electric and simply fill it up with water for thermal mass. Then the water can be drained to move it. If you do this, be sure to leave the tank open to atmospheric pressure or it could explode when heated. I would drill a hole in the top of the tank for this purpose… you could just leave one of the inlets unplugged but that’s just asking for someone to come along and plug it later. The tube through the center of the gas hot water tank would need to be capped at the top end (could be done with a removable cap for inspection). The rocket stove chimney would need to go inside this tube (usually a little over 4″ internal diameter) from the bottom. The rocket stove chimney pipe would need to be about 2.5″ in diameter. Adding 0.5″ of insulation would bring it to 3.5″ diameter, leaving a little over 0.25″ gap for the exhaust gases to go back down. This may seem small but the small gap will improve heat transfer to the tank and its about the right size for matching the area of the gap to that of the chimney. However, such a narrow chimney will not develop good draft so an exhaust fan would be required. It should be placed at the end of the exhaust pipe where temperatures are lowest and where it will develop low pressure throughout the system drawing air into any leaks instead of blowing exhaust out. I’ve had success in experiments with a 12V computer power supply fan. Despite being plastic it works fine due to the low exhaust temperature. I don’t know about lifetime, but they are pretty cheap to replace.I’ve found that the exhaust temperature drops about half way to ambient for every 20cm of travel through the foil exhaust pipe. The simplest way to build a heat exchanger is to make the exhaust pipe longer (though this may not be pretty). For example, doubling my exhaust pipe length from about 80cm currently to 160cm should reduce the exhaust temperature at exit from 40 degrees above ambient (60 degrees C) down to only a few degrees above ambient. However, doing so would also reduce the draft, likely requiring an exhaust fan. This is why I was experimenting with the fan, but in the end I decided to go with the simplicity of a shorter exhaust pipe.For me, this project is about disposing of some scrap wood as efficiently as possible. I don’t have enough wood to burn that I’m very worried about acidic condensation in the chimney. If I wanted a more permanent installation I would simply pipe the exhaust all the way outside (either up the chimney or out the side of the house through something like a dryer vent). The exhaust temperature is well below the melting point of PVC which should not corrode. A good design would allow any condensation in the system to be collected. Again, a longer exhaust pipe will likely require an exhaust fan.If you do go to the trouble of piping the exhaust all the way outside, it would not be much additional trouble to pipe in fresh air to the combustion chamber, making for an even more efficient system. For example, if I piped my exhaust all the way up my chimney through a PVC pipe, I could draw fresh air for combustion directly from the fireplace.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "194137",
"author": "bilbao bob",
"timestamp": "2010-10-09T20:23:26",
"content": "@Rob Steves“my invalid assumption of complete combustion.”Sir, I have developed the most profound respect for you based on that paragraph. I wish you many BTUs of happiness and warmth with this project.I also want to suggest that using low velocity air as your circulating medium rather than water will save you endless trouble. Boilers (intentional or not) are a bitch, in general.Lastly, just because it’s interesting, I suggest you consider adding thermopiles to power the blower fan. Easier to get working than a stirling engine.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,363.496123
|
||
https://hackaday.com/2010/10/04/electronic-dice-overkill-and-simplified/
|
Electronic Dice, Overkill And Simplified
|
Caleb Kraft
|
[
"Microcontrollers"
] |
[
"dice",
"random",
"simple"
] |
[littlebird] posted a tutorial on
making electronic dice
. He’s using an ATmega328 for the numbers work, and a mercury switch to activate it all. A nice blue enclosure to match the blue LEDs he’s using for the number display wraps it up nicely. Of course, someone had to mention that this was an amazing amount of over kill and it could just be done with a 555 timer like they used to do “back in the day”. [littlebird] responded with
another tutorial
to prove that he hadn’t forgotten how to work with the basics. He goes on to point out, now that we see both in action, that he can expand his microcontroller based one quickly with a few lines of code, where every new feature added to the 555 timer version would require additional components.
You can catch videos of both after the break.
[youtube=http://www.youtube.com/watch?v=BYCv0avM-uQ]
[youtube=http://www.youtube.com/watch?v=E3qwNPPrAQ0]
| 17
| 17
|
[
{
"comment_id": "190641",
"author": "The DON",
"timestamp": "2010-10-04T14:49:59",
"content": "A little bit more programming needed.At the moment, the ‘dice’ can flip from one ‘side’ to the opposite ‘side’ instantly. EG: the numbers can be seen to flash through from 3 to 4 (opposite sides of a die) without any transition number between the two.The devil is in the detail.Good project though :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190645",
"author": "The DON",
"timestamp": "2010-10-04T14:53:10",
"content": "Ooops – I was a bit hasty in commentingIt appears to count from 1 through six several times before displaying a random number.:-))",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190656",
"author": "Addidis",
"timestamp": "2010-10-04T15:15:46",
"content": "D&D addicts are gonna love this :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190661",
"author": "John Boxall",
"timestamp": "2010-10-04T15:21:57",
"content": "Thanks for mentioning it on hackaday.comGlad you liked it!john",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190662",
"author": "Slanesch",
"timestamp": "2010-10-04T15:22:53",
"content": "that’s pretty awesome. i know what i want to use when playing GURPS now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190714",
"author": "jeff-o",
"timestamp": "2010-10-04T16:53:43",
"content": "Now get to work on a d20! :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190757",
"author": "bzroom",
"timestamp": "2010-10-04T18:11:29",
"content": "i wish it flashed a couple times to tell you when it’s done rolling.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190785",
"author": "PeterM",
"timestamp": "2010-10-04T18:36:48",
"content": "I don’t think you need to go all the way to a 55 for a project like this. I would just use a smaller processor.Every product line has parts ranging from big to small. Find a family, get familiar with 2 or 3 parts that cover the product range well, and then use them appropriately as needed. If you standardize on using the same few procs, you get used to their quirks and have the parts on hand when needed.It makes sense to use a flyswatter for a fly and an elephant gun for an elephant. However, you don’t need to use a spear on an elephant just because that’s the way they used to do it in the “old days.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190854",
"author": "John Smith",
"timestamp": "2010-10-04T19:37:43",
"content": "How is this a “spear on an elephant”? He used the processor which had the best development tools (arduino) because using other processors would mean more development time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190857",
"author": "Jinx",
"timestamp": "2010-10-04T19:42:56",
"content": "He could have simplified the circuit outputs to 4 instead of addressing each of the 7 LED’s. 3 freed pins means more expandability. I remember making one of these with 4 multiplexers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190885",
"author": "grenadier",
"timestamp": "2010-10-04T20:13:30",
"content": "An electronic die can be made with the 7XXX series ICs, a microprocessor is overkill IMO. I’ve made one with some logic ICs and it works quite well.I love mercury switches though. Rollerballs just can’t compete; too bad they’re getting hard to find. I’ve started making my own with steel wire and glass tube, but they don’t look nearly as professional as the “real ones”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191140",
"author": "Jonathan Wilson",
"timestamp": "2010-10-05T01:43:31",
"content": "I had an electronics kit when I was a kid that used a 7-segment display and some 7xxx TTL to produce a dice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191589",
"author": "Adrian Flanagan",
"timestamp": "2010-10-05T15:39:53",
"content": "OK, somebody has to point out that you don’t even need the 555 timer for this. You can actually simulate this functionality with a small cubic piece of plastic. You paint the numbers 1 through 6 on the sides…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191724",
"author": "barry99705",
"timestamp": "2010-10-05T20:14:55",
"content": "Needs 13 more leds.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192105",
"author": "Standard Mischief",
"timestamp": "2010-10-06T09:59:55",
"content": "You know, a MSP430G2001IPW14 costs $1.20 in quantity of 1 units at Digikey.A 555 chip needs external components like resisters and capacitors to be configured as a square wave generator, and these extra parts cost money.The era where a simple microcontroler is overkill for a simple logic circuit is just about dead. Use the tools you know how to use.Ho many kinds of dice can you emulate with 10 I/O lines?BTW- there’s a 2d6 circuit in Don Lancaster’s CMOS Cookbook too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "195412",
"author": "pandadev",
"timestamp": "2010-10-11T23:38:17",
"content": "Nice project! But need some ajustens for when the dice is castgood work :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "260911",
"author": "Benway",
"timestamp": "2010-12-07T01:54:53",
"content": "I recall that theory establishes that deterministic systems cannot create non determinist outputs. How is this device, assuming that the output is non determinist, non determinist? It occurs to me that, moving a bit further afield, net traffic that consisted of genuine random “data” would necessarily encounter efforts at decryption. There being no actual encryption this would create meta-noise that would tend to expand decryption efforts at a rate (and cost) several orders of magnitude greater than the input, eg it takes less effort to seem to place a needle in a haystack than it takes to find it, particularly if it’s not there…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.523085
|
||
https://hackaday.com/2010/10/04/ir-receiver-as-usb-keyboard/
|
IR Receiver As USB Keyboard
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"18F2550",
"ir",
"pic",
"protocol",
"receiver",
"sirc",
"sony",
"usb",
"xbmc"
] |
[Arthur] built
an IR receiver to use with XBMC
. Because it’s software specific he identifies the device on USB as a keyboard, and passes the IR commands as keystrokes used by the popular media platform.
Normally,
homebrew IR receivers
would use
LIRC
, the Linux Infrared Remote Control software. But this method doesn’t require you to have that running. In fact, it doesn’t need any setup on the PC end of things. Any remote that uses the
Sony SIRC protocol
will work off the bat.
[Arthur] chose a PIC 18f2550 for the project. It is a popular microcontroller because it has built-in USB handling. We’re a bit skeptical of the hardware design though. We didn’t see specifically which IR receiver he’s using, but many require some type of filtering so check the suggested layout in the datasheet for your module.
| 12
| 12
|
[
{
"comment_id": "190581",
"author": "Ben Ryves",
"timestamp": "2010-10-04T13:14:42",
"content": "Nice work! I built something similar for PowerDVD using an ATtiny84 and V-USB:http://benryves.com/products/powerdvdremote",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190624",
"author": "Gdogg",
"timestamp": "2010-10-04T14:23:33",
"content": "@Ben Ryves that actually looks really cool, his looks kind of sloppy. Unfortunately I’m a PIC guy and would probably do something more similar to his.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190627",
"author": "Whatnot",
"timestamp": "2010-10-04T14:28:10",
"content": "@ben ryves: Very tidy design, and tidy site too.I sometimes wish I had the ability to be so organized and contained, but things are like they are I guess.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190648",
"author": "chango",
"timestamp": "2010-10-04T14:59:22",
"content": "Direct demodulation in software seems like unnecessary work. A UART at 115200 will emit a few characters for even the shortest pulse in 40kHz modulated SIRC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190694",
"author": "steve",
"timestamp": "2010-10-04T16:13:23",
"content": "@BenI like yours better, might have to build one for my tvpc, though f*** power dvd, I’d stick with xbmc; good thing that this looks like it can be adapted to any software on the pc side.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190721",
"author": "Headbonk",
"timestamp": "2010-10-04T17:09:45",
"content": "I had the same idea. Why build a device just to talk to LIRC just so LIRC can translate the device output into keyboard inputs? An ATtiny running USBTiny can do all the work for you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190732",
"author": "fartface",
"timestamp": "2010-10-04T17:35:05",
"content": "Neat if you cant afford the $25.00 Windows media center remote and usb receiver.The ones that are 100% MSMEDIA center compatible work out of the box on XBMC live linux installs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190788",
"author": "Hugh",
"timestamp": "2010-10-04T18:38:52",
"content": "Actually I might going to build this one. It seems to be simple and useful.LIRC is a piece of trash project, it only support a very narrow range of receivers. If you have built in infrared sensor in your laptop or PC or an external USB infrared tool you have almost no chance to make that work in linux. One of the worst hardware support in linux is definitely Infrared and now that it’s replaced by wifi/wimax/bluetooth won’t be developed in the future either.If you have a windows box then don’t bother with this but if you use linux, bsd, solaris etc this project is the way to go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190816",
"author": "John Burton",
"timestamp": "2010-10-04T18:57:29",
"content": "Nice :)I did something similar but only on a plugboard. I emulated a USB keyboard and used a remote control to play world of warcraft with it. I don’t have the circuit or software any more but I did make a video of it –http://www.youtube.com/watch?v=pjqqRFXEWkY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191128",
"author": "Arthur",
"timestamp": "2010-10-05T01:27:35",
"content": "Thanks for sharing it for me Hackaday :), and i will put a parts list of the project on instructables(The receiver was a TSOP6238).[fartface], i would be happy to buy the windows remote,but as a live in brazil i can’t get anything easily and without paying a lot on taxes (around 100%).Sometimes it’s faster,and sure more fun, to do it yourself.I’m sorry about the sloppy construction,it was just a prototype (but it’s working until now and i don’t see no reason to spend more time on it).I think it’s easy to make this thing small,you just need a way to build it (gets hard with handmade PCB,and single sided boards).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191266",
"author": "Mansoor Ahmed",
"timestamp": "2010-10-05T06:00:04",
"content": "Wow! nice!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191977",
"author": "cde",
"timestamp": "2010-10-06T05:28:02",
"content": "@HUGH you know that IRDA is not the same thing as Infrared Remote Control, right? Two different frequencies and hardware types. IRDA doesn’t work that way.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.277929
|
||
https://hackaday.com/2010/10/03/hackaday-links-october-3-2010/
|
Hackaday Links: October 3, 2010
|
Mike Szczys
|
[
"Hackaday links"
] |
[
"bit-52",
"case",
"lego",
"rocket",
"tower"
] |
Sugar rocket
We’re told that
this rocket
is sugar powered. It’s quite a bit bigger than the
homemade sugar motors
we saw last week and it makes for quite a show. [Thanks Estqwerty]
Wooden PC construction
The finished look of this wooden PC case seems very familiar to us but we’re not sure we’ve seen
pictures of the build process
(updated link, sorry [Jeff]) before. There’s something extremely satisfying about how well its creator works with a file. [Thanks Anders]
Working on top
We never realized that this job existed, but if you repair communication towers it’s a heck of a climb to work. The video of
a two-man crew climbing a 1600 foot tower
is one of the most interesting we’ve seen this year. [via
Blogging Protagonist
]
Lego typing machine
[Dougal’s]
typing machine
types his name… over and over again. An interesting little piece of mechanical engineering, we’d have to think for a while to decide the best use for this little guy. [Thanks Chris]
Typing on a different type of keyboard
Here’s another typing machine but this time it’s not a keyboard and not purely mechanical. Pictured is one of the performers in
an old equipment ensemble
performing with whining stepper motors, speech synthesis, an other antiquated noise-makers. [Thanks Mike]
| 32
| 31
|
[
{
"comment_id": "190089",
"author": "Navic",
"timestamp": "2010-10-03T19:12:28",
"content": "Awesome rocket flight! The scale is amazing, great recovery! Sure was a large batch of propellant to make, lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190091",
"author": "strider_mt2k",
"timestamp": "2010-10-03T19:15:05",
"content": "Wow, that was sweet! ;)I hope they post my Radbot!99% industrial scrap:http://www.flickr.com/photos/strider_mt2k/sets/72157625069322244/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190105",
"author": "zool",
"timestamp": "2010-10-03T19:32:26",
"content": "no wooden mouse or keyboard?maybe he can get a con-artist to make him one",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190106",
"author": "Marcus Quintilian",
"timestamp": "2010-10-03T19:36:23",
"content": "the pc case is very similar to the Thermaltake Level 10 Case",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190109",
"author": "cmholm",
"timestamp": "2010-10-03T19:39:34",
"content": "Regarding the neat wood pc case, you’re being reminded of the thermaltake level 10 chassis.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190116",
"author": "JBot",
"timestamp": "2010-10-03T19:50:58",
"content": "I didn’t much appreciate the old equipment ensemble…it really wasn’t very musical, which I’d find to be the defining point of that type of project.Search Youtube for “big ideas don’t get any james houston”; it was posted here a little over a year ago if I recall correctly. That’s this type of project, done well.I intend to put together something similar, but I haven’t had a chance yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190128",
"author": "CutThroughStuffGuy",
"timestamp": "2010-10-03T20:11:22",
"content": "Lego key typer is neat but would be neater if it could type any key. But there are plenty of easier ways of doing that – basically just make a programmable USB keyboard at that point.Or go solenoids on every key?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190131",
"author": "Jake H",
"timestamp": "2010-10-03T20:15:34",
"content": "You might want to put a warning on the Wooden PC link–there are some pretty NSFW thumbnails and ads on that site. Really slick project, though, and indeed impressive filing!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190132",
"author": "Fabi",
"timestamp": "2010-10-03T20:18:07",
"content": "Does somebody know the name of the “Mainboard” used on the Wooden PC?Direct2Pic:http://de.trinixy.ru/pics4/20100915/wooden_pc_case_09.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190136",
"author": "anon",
"timestamp": "2010-10-03T20:27:43",
"content": "here is the build log for the wooden case…http://hardforum.com/showthread.php?t=1499567&highlight=level",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190202",
"author": "Whatnot",
"timestamp": "2010-10-03T21:54:28",
"content": "You misspelled hell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190203",
"author": "Kozzy",
"timestamp": "2010-10-03T21:56:27",
"content": "The second typing machine is still using a keyboard >.>",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190214",
"author": "M4CGYV3R",
"timestamp": "2010-10-03T22:28:57",
"content": "I climbed one of those huge antenna towers (only 1000ft, no elevator though) with a friend who does that as his job. He does it nearly every day but once was plenty for me.Also, there was no question about the safety line. They were all religious about making sure they were clipped in on every section. The wind up there got up to nearly 35mph at times and you sure don’t want to only be attached with your grip for that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190219",
"author": "sneakypoo",
"timestamp": "2010-10-03T22:37:55",
"content": "@Jake H: Not only NSFW, some pretty disturbing crap as well. I got disfigured babies in the face, nice…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190221",
"author": "f8l_0e",
"timestamp": "2010-10-03T22:48:40",
"content": "I don’t know how the build pics of the wooden computer ended up on a russian language site, but this guy is from North Florida. I recognized it as soon as I saw it. His website ishttp://www.slipperyskip.com. The computer is called level eleven because it is indeed inspired by the thermaltake chiller 10. It is a VIA pico or nano atx board in there I can’t remember which, but his website almost surely will say. His other stuff is just as amazing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190224",
"author": "kirov",
"timestamp": "2010-10-03T22:51:02",
"content": "the communication tower video is disgusting; the tower itself must sway somewhat itself in addition to the high winds.reminds me of this story:http://englishrussia.com/index.php/2008/12/08/tallest-abandoned-structure/where they climb and abandoned communications tower in the winter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190226",
"author": "Matt",
"timestamp": "2010-10-03T23:03:36",
"content": "OSHA lets them free climb? OSHA doesn’t let me walk around the manufacturing floor of at the place I work where they assemble electronics without steel-toed shoes, yet there’s almost nothing that could fall on my toes. (“Ouch! I just dropped a spool of SMT resistors”)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190307",
"author": "Jeffrey Stephenson",
"timestamp": "2010-10-04T01:29:46",
"content": "So why the hell would you send traffic to a site that stole my photos? Fix it, take it down or stand-by for a DMCA notice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190309",
"author": "Nick",
"timestamp": "2010-10-04T01:32:18",
"content": "For that little typing machine… A mechanical spam machine, if you could have it press enter after typing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190315",
"author": "GZ",
"timestamp": "2010-10-04T02:13:24",
"content": "I worked in tv for a while. The tower jobs are crazy dangerous. All it takes is one wrong bar being removed/repaired because the plans were wrong or someone did a bad job doing maintenance or construction and the whole thing comes crashing down.They have lots of safety regulations but in the end, human error, one cut corner, one mistake and the tower comes down.So glad it’s not my job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190326",
"author": "Jeffrey Stephenson",
"timestamp": "2010-10-04T02:21:48",
"content": "OK. I just sent a DMCA take down notice to WordPress.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190331",
"author": "docodine",
"timestamp": "2010-10-04T02:37:57",
"content": "http://forums.bit-tech.net/showthread.php?p=2440327the russians stole slipperyskip’s build log, please link to one of his real build logs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190433",
"author": "MG",
"timestamp": "2010-10-04T07:05:58",
"content": "So, who is Kelly Davio?? Has HaD been hacked?? :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190434",
"author": "MS3FGX",
"timestamp": "2010-10-04T07:11:13",
"content": "Jeffrey Stephenson: Internet SheriffSeriously, HaD publishes things based on reader submitted tips; somebody probably tipped them off to this Russian site after they found the images via Google Image Search. No way to know what the original source was until the creator (or at least somebody else who remembered seeing them) showed up. The link will get fixed once one of the editors sees this, though I would hope you have already contacted HaD staff directly before threatening them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190451",
"author": "DanAdamKOF",
"timestamp": "2010-10-04T08:18:27",
"content": "I think I held my breath for that entire tower climb video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190463",
"author": "sneakypoo",
"timestamp": "2010-10-04T09:26:48",
"content": "@Jeffrey Stephenson: Why are you sending it to WordPress? It was neither WordPress or HaD that reposted your pictures on that site. If you go after sites that link to other sites you should probably send one to Google as well… While I understand your feelings (had it happen to myself as well) you’re overreacting just a tad. You should’ve gotten in contact directly with the site and asked them politely first.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190482",
"author": "Jeffrey Stephenson",
"timestamp": "2010-10-04T10:00:12",
"content": "I have asked HaD to fix this issue but they prefer to ignore me. I can’t stop HaD from sending people off to a scumbag pirate site but I can force WordPress to remove the photo associated with this article. It sucks that I have to play these kind of games.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "190528",
"author": "Caleb Kraft",
"timestamp": "2010-10-04T11:58:25",
"content": "Jeffrey Stephenson,I just got back from a trip and read through these comments. I’ve updated the link to your personal site. Let me know if there’s a better link, I may have missed it if you already posted it. Sorry for the delay. We weren’t ignoring you, there just wasn’t anyone here.",
"parent_id": "190482",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "190530",
"author": "Ben",
"timestamp": "2010-10-04T12:06:29",
"content": "At first I’m thinking, “that’s not so bad, he’s climbing in a cage”, but then it switches to single bars sticking out the side. And when he finally gets to the top, what is there to fix up there?I think I’m going to be sick…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190543",
"author": "Jeffrey Stephenson",
"timestamp": "2010-10-04T12:36:48",
"content": "Thanks Caleb. I really enjoy HaD. My work has been on here in the past (PSU PC). I was disappointed to see you giving credit for my work to an obviously fraudulent website. The HardOCP and bit-tech links mentioned in the above comments contain my full work log…with text!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191191",
"author": "naxxfish",
"timestamp": "2010-10-05T02:54:26",
"content": "Whooaaa kay. I got scared climbing to the top of a 50ft tower. And I’m not even scared of heights normally. Respect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192193",
"author": "Shawn Boutilier",
"timestamp": "2010-10-06T12:39:03",
"content": "I am a tower climber, and I approve this message.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.228684
|
||
https://hackaday.com/2010/10/03/millennium-falcon-doll-house/
|
Millennium Falcon Doll House
|
Mike Szczys
|
[
"Toy Hacks"
] |
[
"millenium falcon",
"minifig",
"peg doll",
"pixie",
"star wars"
] |
Sometimes all it takes is one idea. The shape of a cutting board found at a thrift store prompted [Paul] to build
a Millenium Falcon doll house
. In addition to the strangely shaped cutting board, a ring from a CD spindle and some wood slats divide the internals while PVC fittings complete the cockpit assembly. To really bring things alive for the kids [Lin] made
a bunch of minifigs from hobby pegs
. These exhibit her artistic skills as we think they’re better than most of the stuff you could buy in a store.
Kids really bring out the best in hacking. Looks like these children have been enjoying the spoils of hacker parents for a while, with
a cardboard rocketship
(beats any refrigerator box hands down),
Pixie-Dust bottles
using some small LED bits, and a
doll bed that repurposes a wine rack
.
[Thanks Joby]
| 19
| 19
|
[
{
"comment_id": "189974",
"author": "biozz",
"timestamp": "2010-10-03T17:19:28",
"content": "X3 sometimes you wish you were a kid again",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189985",
"author": "vonskippy",
"timestamp": "2010-10-03T17:32:59",
"content": "So it’s Craft-a-Day now eh?I’m sure having articles like this will help your resume when you apply to Women’s Day Magazine for their tea cozy editor, but WTF is it doing on HAD?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189994",
"author": "Henrik Pedersen",
"timestamp": "2010-10-03T17:47:08",
"content": "Sometimes i think HaD REALLY want those flamewars …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189997",
"author": "biozz",
"timestamp": "2010-10-03T17:49:24",
"content": "@vonskippy1)http://hackaday.com/2007/04/01/were-giving-up/2) its just as much of a hack than anything else … your taking a bunch of materials and your making them do something there not intended to doif you dont like it DONT CLICK ON IT",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190030",
"author": "strider_mt2k",
"timestamp": "2010-10-03T18:16:59",
"content": "That is pretty cool!Very imaginative and well implemented.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190054",
"author": "7e",
"timestamp": "2010-10-03T18:48:25",
"content": "Also dont forget the awesome Color Conundrum they made before:http://hackaday.com/2010/03/08/dr-boardmans-color-conundrum/Awesome stuff :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190130",
"author": "apostl3pol",
"timestamp": "2010-10-03T20:14:58",
"content": "Cute.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190138",
"author": "MS3FGX",
"timestamp": "2010-10-03T20:33:35",
"content": "It’s like I am really reading MAKE.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190179",
"author": "DarkFader",
"timestamp": "2010-10-03T21:20:29",
"content": "instructables meets hackaday…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190200",
"author": "Badger",
"timestamp": "2010-10-03T21:49:06",
"content": "To all the haters out there, A hack is to re-purpose something it was not intended to do.We got to get the next generation interested some how. Lets get them young and eager to learn.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190264",
"author": "biozz",
"timestamp": "2010-10-04T00:28:13",
"content": "@BadgerTHANK YOUeven if you dont think crafts is a hack YOU STILL GET YOUR HACK A DAY … HaD offers at least 7 different hacks a day so no matter what your going to get your fix!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190267",
"author": "Osgeld",
"timestamp": "2010-10-04T00:43:42",
"content": "“We got to get the next generation interested some how. Lets get them young and eager to learn.”by letting mommy and daddy make them something and give it to them yay!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190359",
"author": "thetruthhertz",
"timestamp": "2010-10-04T03:57:56",
"content": "@OsgeldSo let’s get this straight… You consider some jerk with a spray paint can, who vandalizes *other* peoples’ property, to be an “artist,” yet a person who hand-makes and paints nice toys for his/her children deserves your contempt?I feel sorry for you. If your parents had cared enough about you to invest their talent, time, and themselves in the construction of your toys– and by extension, your life– you’d have understood what a gift like this really represents.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190367",
"author": "Gothmog",
"timestamp": "2010-10-04T04:33:47",
"content": "Hey, be carefull, Darth Vader is onboard!!!If that’s not hacking :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190406",
"author": "t&p",
"timestamp": "2010-10-04T05:36:26",
"content": "that’s cute! I love it!oh I wish I had kids ;_;",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190502",
"author": "Halexander",
"timestamp": "2010-10-04T10:37:10",
"content": "I like it how it went from this:>vonskippy “So it’s Craft-a-Day now eh?I’m sure having articles like this will help your resume when you apply to Women’s Day Magazine for their tea cozy editor, but What The Heck is it doing on Hack a Day?”>Henrik Pedersen “Sometimes I think Hack a Day REALLY wants those flame-wars …”To this:>strider_mt2k “That is pretty cool!Very imaginative and well implemented.”>Et cetera “Et cetera”All after/(because of) this:>biozz “@vonskippy1)http://hackaday.com/2007/04/01/were-giving-up/2) it’s just as much of a hack than anything else … you’re taking a bunch of materials and you’re making them do something they’re not intended to do.If you don’t like it DON’T CLICK ON IT”THIS is how humans should behave. Always supporting each other. We’re all social God damnit, can’t you get that through your testosterone filled brain-boxes?Jesus… and I’m not even religions, as you may/(may not) have observed.s?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190520",
"author": "MadHippo",
"timestamp": "2010-10-04T11:17:12",
"content": "I like it. It’s creative and geeky, which is what HaD is all about.Stick an arduino controlled LED in the middle, and everyone will be happy :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190612",
"author": "osgeld",
"timestamp": "2010-10-04T13:57:42",
"content": "“So let’s get this straight… You consider some jerk with a spray paint can, who vandalizes *other* peoples’ property, to be an “artist,””where the fuck did i ever say that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191131",
"author": "Hypocrisy",
"timestamp": "2010-10-05T01:32:12",
"content": "Hey guys, new idea: if you don’t like a comment, take your own advice and DON’T READ IT. HOLY SHIT.Anyhow, it looks cute and all, but since I currently live in a free country were my personal opinions can be openly expressed: I don’t see where it fits on HAD (or at least deserving of a whole post.)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.025422
|
||
https://hackaday.com/2010/10/03/zinc-sulfide-glow-power-at-home/
|
Zinc Sulfide Glow Power At Home
|
Mike Szczys
|
[
"chemistry hacks"
] |
[
"glow",
"pennies",
"powder",
"torch",
"zinc sulfide"
] |
Further solidifying her mad-scientist persona, [Jeri Ellsworth] is
making glow powder with household chemicals
. When we saw the title of the video we though it would be fun to try it ourselves, but the first few minutes scared that out of us.
To gather the raw materials she puts some pennies in a bench motor and files them into powder. From there it’s trial and error with different cleaners and tools to create just the right dangerous reaction to get the chemical properties she’s looking for.
Check out her experiments after the break. And if you find you’re wanting more, go back and take a look at
her EL wire fabrication process
.
[youtube=http://www.youtube.com/watch?v=veOiHb-KuSE]
| 40
| 38
|
[
{
"comment_id": "189963",
"author": "hmm",
"timestamp": "2010-10-03T16:47:30",
"content": "Destroying currency is illegal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189967",
"author": "Zengar",
"timestamp": "2010-10-03T16:59:26",
"content": "@hmm: _altering_ currency is illegal, but destroying it is not. A quick search turned up this bit which cites the relevant statuteshttp://answers.google.com/answers/threadview/id/77334.htmland as the person answering there states, the important factor is fraudulent intent. If you drill holes in a bunch of pennies to make a necklace you aren’t doing anything illegal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189969",
"author": "Freax",
"timestamp": "2010-10-03T17:00:38",
"content": "not everywhere, but in the US, yes, it is… but that law is really old and was more meant to stop people from removing small amounts of valuable material from the coins back when the value of the coin was more or less the value of the material it was made of. Is this still enforced today? You see a lot of projects involving destroying currency or at least making it unusable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189970",
"author": "Addidis",
"timestamp": "2010-10-03T17:01:22",
"content": "very cool to watch, but not something im gonna try :) I learned my lesson trying to make sparklers once hehe.This gave me a cool idea, Paint a wall in the store bought kind and build machine to use the grafitti capture, and play it back using a laser on the wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189981",
"author": "Charles Shults",
"timestamp": "2010-10-03T17:31:34",
"content": "It is most certainly NOT illegal to destroy currency or even alter it as long as you are not trying to pass it off as being of a different value. Fraudulent intent is the key here. I once had to weld some aluminum and had none of that alumalloy so I made my own by melting zinc pennies and aluminum together. Worked perfectly.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5157798",
"author": "Aaron Houghton",
"timestamp": "2018-09-26T19:15:13",
"content": "actually it’s a relatively new law probably to keep people from making copper castings…Pennies cost more than they’re worth…passed in the late 90’s",
"parent_id": "189981",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "190034",
"author": "tre4",
"timestamp": "2010-10-03T18:23:46",
"content": "Lets say it is illegal to destroy currency…. We should totally spend thousands (if not hundreds of thousands) to bring her to justice for destroying some pennies! This seems worth the time of our federal detectives…Think McFly, Think!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190043",
"author": "Trollicus",
"timestamp": "2010-10-03T18:38:23",
"content": "It’s better to cut or grind a little off the top and bottom of the penny then melt the zinc out with a propane torch (zinc has a lower melting point than copper) that way you wont get copper mixed in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190045",
"author": "Trollicus",
"timestamp": "2010-10-03T18:40:12",
"content": "to much copper will cause the glow to fade quickly should have said that last post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190052",
"author": "john",
"timestamp": "2010-10-03T18:47:55",
"content": "well neat but not very informative for someone to actually replicate.what are the proportions? what is the tarn-x used for? what are the proportion with the tarn-x.like i said, it is neat that it can be done at home, but not much in the way of recreating it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190086",
"author": "Trollicus",
"timestamp": "2010-10-03T19:09:06",
"content": "Don’t use tarn-x it has to many impurities the urea based cold packs are much much better(they are pure urea), again it’s the impurities that cause the glow to fade quickly. The addition of strontium and europium(tiny amounts) will also increase glow time and luminosity.strontium carbonate, strontium lactate and strontium gluconate are available as supplements for people with osteoporosis (it’s NOT the highly radioactive strontium 90!)I have no idea where to get europium although I think it’s used for the red phosphors in crt screens.Again you need TINY amounts of them(europium and strontium) more wont help just like the copper doping the amount is almost to hard for the average home hobbyist to measure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190088",
"author": "GaryC",
"timestamp": "2010-10-03T19:12:12",
"content": "NerdRage did a better job of explaining how to make glow powder as well as the science behind it.http://www.youtube.com/watch?v=TYDn06G2C0E",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190099",
"author": "shazzner",
"timestamp": "2010-10-03T19:23:56",
"content": "Awesome, Jeri is nuts :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190107",
"author": "bothersaidpooh",
"timestamp": "2010-10-03T19:38:47",
"content": "neat, must try this…an idea for adding the required dopant, obtain a carbon electrode and deposit the copper, etc onto that. Then dunk into the solution and wait until it is dissolved and you will know exactly how much is added based on the current and time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190114",
"author": "rallen71366",
"timestamp": "2010-10-03T19:45:48",
"content": "Yes, but she’s my kind of nuts!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190129",
"author": "s",
"timestamp": "2010-10-03T20:11:38",
"content": "@GaryC: Very cool, but unfortunately NurdRage didn’t use common household materials that anyone could have to try it right now.Awesome Jeri!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190137",
"author": "ithon",
"timestamp": "2010-10-03T20:29:37",
"content": "I have to note that yes nurd rage did make a great video on making a glow powder, but jeri was trying to make Zinc Sulfide glow powder at home with only household items. Which Zinc Sulfide can be used in electroluminesence, and one EL substance is ZnS:Cu.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190238",
"author": "DR",
"timestamp": "2010-10-03T23:29:52",
"content": "While this whole thing is slick, I think the best part is around 1:18 when the cat decides it’s time to bail.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190262",
"author": "rain",
"timestamp": "2010-10-04T00:22:32",
"content": "will it work on meth?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190369",
"author": "BenBenson",
"timestamp": "2010-10-04T05:02:49",
"content": "I hope Jeri breaths in those nice Zinc fumes really deep, now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190415",
"author": "Morgauxo",
"timestamp": "2010-10-04T06:07:49",
"content": "I think BenBenson must be a very sad and lonely person.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190435",
"author": "WestfW",
"timestamp": "2010-10-04T07:16:05",
"content": "The thiourea in TarnX has some potential for other applications; imersion tin plate for circuit boards, for example. I’m glad that someone mentioned it; thiourea is otherwise hard to find!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190448",
"author": "Jeri Ellsworth",
"timestamp": "2010-10-04T08:11:57",
"content": "@Trollicus – We are not looking for urea, but thiourea that has a sulfur atom in place of the carbon in urea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190455",
"author": "s",
"timestamp": "2010-10-04T08:35:55",
"content": "Jeri is right about the thiourea, just misplaced that thiourea (NH2)2CS has the sulfur atom in place of the oxygen in urea (NH2)2CO.Too much pinball this weekend? ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190492",
"author": "zzzomb",
"timestamp": "2010-10-04T10:14:16",
"content": "About 12 months ago I ran a few experiments with zinc sulPHATE (not sulfide). Process was…Attach a metal file to an electric jigsaw.Grind down the zinc from AA batteries. In Australia we don’t have pennies.Grind down copper from plumbing fittings.Keep some of the black stuff from the batteries (manganese dioxide).Crushed up garden sulphur until fine powder.Mix the ingredients together. Hold a flame over the mixture until it all starts bubbling away.Let this cool down and dry. It becomes a brittle crust. Hold a flame again to this and it will ignite violently (face protection required).If you do this with just sulphur and zinc you get Zinc Sulphate. For electroluminescence we need this to be doped with copper, and perhaps manganese depending on the colour we want.Reading up on this, mostly by patent searchs, industrial setups do this in a vacuum chamber and fume the copper and in the mixture at only a few parts per million. Because my mixture is ignited just in air, I used much higher amounts of copper in some mixes, and copper + manganese in others. Still most of the mixture was equal parts zinc/sulphur.Then with the powder that resulted I started probing it with the 2 wires from an EL circuit. Results were mostly disheartening. There was however 1 eureka moment. With one particular mixture I got a noticeable very red glow. This mixture had a bit more zinc than it had sulphur, maybe 25% more. It had “a dash” of copper and of manganese. It worked on a section of the ash maybe 2mm wide. After breaking that piece of ash apart it no longer worked.Having been a bit too busy with other things since then, that is as far as it went. The intention has been to come back to it to play around with the ratios a bit more later when time permits.That’s my mostly failed experimenting so far. I mention all of this hoping it might help someone take it further. I do have questions for Jeri though. Have you tried including manganese in your zinc sulfide? You may have even answered this in your video but I’m at McBurger joint on free wifi which keeps timing out after 5 seconds – damn that hamburglar.Also, at the start of your video I notice you demonstrated the glow with a torch. Have you tried it with an EL circuit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190521",
"author": "Mr Top Hat",
"timestamp": "2010-10-04T11:17:53",
"content": "did anyone notice the spelling mistake in the title its powder not power",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190619",
"author": "ovaries",
"timestamp": "2010-10-04T14:19:37",
"content": "Zimc Sulfide is cheap enough to buy that it seems kind of a pita. But that!s what hacks is aboot",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5157782",
"author": "Aaron Houghton",
"timestamp": "2018-09-26T19:05:32",
"content": "that’s just nerd entertainment…I’ve been looking on how to do this for days and I have a can of glow in the dark paint 3 feet away…trying to cast a Zinc railroad spike and now working on some kind of added effect…boredom",
"parent_id": "190619",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "190646",
"author": "Clueless_Being",
"timestamp": "2010-10-04T14:53:42",
"content": "So pennies ARE still useful after all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190686",
"author": "bilbao bob",
"timestamp": "2010-10-04T16:04:01",
"content": "College and high school chemistry books of the 1910’s-1970’s era might be enlightening. It was not unusual to find discussions of a variety of interesting topics, and passing high voltage through substrates of various dried emulsions certainly counts as interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190705",
"author": "coinguy",
"timestamp": "2010-10-04T16:34:50",
"content": "Actually melting 1-cent and 5-cent US coins for their metallurgical value is illegal.http://www.federalregister.gov/articles/2007/04/16/E7-7088/prohibition-on-the-exportation-melting-or-treatment-of-5cent-and-onecent-coins",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190749",
"author": "Hitek146",
"timestamp": "2010-10-04T18:01:03",
"content": "^@coinguy:Did you even read the contents of what you linked to?The text of the site in your link clearly states that certain activities, such as those in Jeri’s experiment, are specifically allowed, and are not illegal…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190754",
"author": "Trollicus",
"timestamp": "2010-10-04T18:04:34",
"content": "“@Trollicus – We are not looking for urea, but thiourea that has a sulfur atom in place of the carbon in urea.” JeriAhh, I just caught that, hmm gives me ideas for other uses for tarnX.Great project by the way, have you tried using a shield gas (as in a MIG welder) such as argon to keep oxygen out? You could try heating it under pressure (maybe between two pennies in a vise) while using an argon shield gas.Oh, and you could try doping with silver for a nice blue color(use dimes?)Just some suggestion, I’m no chemist (I’m an EE) and be careful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190867",
"author": "Concino",
"timestamp": "2010-10-04T19:53:12",
"content": "I don’t understand the fascination of making your own glow things. Is it worth breathing all these fumes? I mean what is more important? your health or make glowing things with household materials?We have laws preventing people from smoking even in public parks because it subjects other people to 2nd hand smoking. But one can generate all sorts of toxic gasses in their garage and that’s cool because it is science.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190977",
"author": "Jeri Ellsworth",
"timestamp": "2010-10-04T21:47:50",
"content": "@Concino our body produces H2S all the time. I think the government should issue special corks to fix this problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191043",
"author": "Drackar",
"timestamp": "2010-10-04T23:29:47",
"content": "Defacing or destroying money is only illegal…if you try to use it as money, after the fact. While it’s in your possession, you can do whatever you want with it…hell, you can re-sell the modified product, as long as you do not try to use it as currency.I made some copper pennies into a bit of scale mail once. That was…problematic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191344",
"author": "zzzomb",
"timestamp": "2010-10-05T08:02:31",
"content": "Ok so I’ve finally accessed decent interwebs and been able to view the video. Nice work. Very interesting!You mentioned that you had no luck lighting it with the lower temperature flame. If you hold a dull flame over it and make it bubble away on it’s own, let it sit for 10 minutes on it’s own. This seems to allow time for moisture (sulfuric acid?) to evaporate. The same moisture must evaporate alot quicker in that hotter flame. The dried mixture after sitting for 10 minutes is very flammable even with a low heat flame from a cigarette lighter.I’m wondering then… when I have been just igniting a mixture of sulphur and zinc powders(see my comment above for details), have I been making zinc sulfide or zinc sulfate?Also, the green pixel! It’s vanished! We want our green pixel back.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192007",
"author": "Toddzilla",
"timestamp": "2010-10-06T05:53:09",
"content": "@zzzomb – “I’m wondering then… when I have been just igniting a mixture of sulphur and zinc powders(see my comment above for details), have I been making zinc sulfide or zinc sulfate?”You are in fact producing ZnS (Zinc sulfide) and happens to be one of the easier equations to balance: Zn + S –> ZnSThis mixture also happens to be one of the most popular amateur solid rocket fuel that has been in use since the late 50’s. It’s most commonly known as “micrograin” solid rocket propellant.Optimised ratio: approx 67% Zn and 33% S by weightThe ZnS produced upon combustion can be easily ground into a smooth, fine and homogeneous powder.~I love chemicals!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192879",
"author": "zzzomb",
"timestamp": "2010-10-07T13:06:21",
"content": "You little champion Toddzilla. Thanks bro.“With one particular mixture I got a noticeable very red glow. This mixture had a bit more zinc than it had sulphur, maybe 25% more.”–>“Optimised ratio: approx 67% Zn and 33% S by weight”Makes perfect sense now. Now to work on the ratio of the copper and the manganese.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "419068",
"author": "Redhat",
"timestamp": "2011-07-18T08:53:38",
"content": "Very interesting. But a violet laser will make even simple baking soda (sodium bicarbonate) phosphoresce green for a brief time.Test it with an incandescent flashlight like we use to do as kids when they started putting ZnS:Cu in all the toys.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.356041
|
||
https://hackaday.com/2010/10/03/chiptune-instrument-from-nes/
|
Chiptune Instrument From NES
|
Mike Szczys
|
[
"Musical Hacks",
"Nintendo Hacks"
] |
[
"2a03",
"arduino",
"chiptune",
"mega",
"midi",
"nes"
] |
[Jarek Lupinski] wanted an instrument that would let him play chiptunes live, without a need for pre-programming a cartridge for playback during a concert. His preferred hardware is an original Nintendo Entertainment System because of its familiar nostalgic sound. After picking up a lot of 5 broken NES units
he set out to build a midi-compliant device
.
The five NES units he bought had nothing wrong with them other than the 70-pin cartridge connector. He fixed them all, then de-populated the board on one and tried to build out a circuit on a breadboard. After much trial and error, forum searching, and conversations with others who were familiar with the hardware he got the circuit working. He’s posted a schematic and had a board fabricated which takes the transplanted chips and transforms them into an instrument. Check out the test notes being played by an Arduino Mega after the break.
[youtube=http://www.youtube.com/watch?v=Yui7YrLShsg]
| 12
| 11
|
[
{
"comment_id": "189918",
"author": "IX",
"timestamp": "2010-10-03T15:29:29",
"content": "Gah! I was working on pretty much the same thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189948",
"author": "embedded",
"timestamp": "2010-10-03T16:21:35",
"content": "aha.. 2A03 Nintendo chip :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190035",
"author": "Dan",
"timestamp": "2010-10-03T18:24:20",
"content": "A nice start, but I want to see the finished project back in the NES case. A good goal: MIDI-in right next to the mono audio-out with no other connections required. That’d almost be something you could sell to people…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190082",
"author": "zool",
"timestamp": "2010-10-03T19:03:36",
"content": "this is great newsbut i’m wondering why he would use the 2A03but then wants to make a cart with it?i thought it was going to be it’s own thingwonderings: if you can just make something like that that accepts midior something like that where you can change the parameters of the sounddo you have to use arduinomegai want to do thisi’m glad he’s documenting everything and making it open source",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190094",
"author": "jarek",
"timestamp": "2010-10-03T19:16:59",
"content": "i started with the 2A03 because the original idea was to stuff the entire thing into an electric keyboard to have a synthesizer you can play anywhere. It was only after discovering that 2A03 chips were scarce, and people don’t like tearing open their beloved NES’s that I decided to port it to a cart form factor.I only used an Arduino Mega for the proof of concept, the final will probably use an STM32 with multiplexers.Have fun! The underlying theory is really complex XD but with a bit of reading at nesdev.com you can figure it out too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190142",
"author": "blue carbuncle",
"timestamp": "2010-10-03T20:39:42",
"content": "dejavu. I was athttp://www.wayfar.net/0xf00000_overview.phpThey have midilines but a possible 8 week wait lol. Neat item though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190212",
"author": "zool",
"timestamp": "2010-10-03T22:26:04",
"content": "@jerek i remember seeing a high res image of the midines board somewherei can’t remember where but i’ll keep lookingdunno if it would help at all though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190355",
"author": "P",
"timestamp": "2010-10-04T03:43:45",
"content": "Time to combine this with my Midibox SID…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190549",
"author": "R4",
"timestamp": "2010-10-04T12:50:20",
"content": "This is just great! While you can “emulate” a chip tune sounding instrument or istruments, there’s nothing quite like the real thing!! Hats off to you buddy!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "426409",
"author": "Conner",
"timestamp": "2011-07-31T22:44:58",
"content": "It seems that the lower the pitch, the higher the distortion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "691224",
"author": "TechnoirBard",
"timestamp": "2012-06-29T21:32:07",
"content": "Would it be possible to use an NES Powerglove as the instrument keys for a chip-tune NES? I think that would be perfect. The Hexadecimal buttons and full nes pad, right on your arm. I love the Powerglove, it’s s… oh nevermind.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1006247",
"author": "Yuri",
"timestamp": "2013-05-21T02:27:07",
"content": "so bad… not your joke, the Powerglove!",
"parent_id": "691224",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,364.406176
|
||
https://hackaday.com/2010/10/03/spinning-pov-clock-done-oh-so-right/
|
Spinning POV Clock Done Oh-so-right
|
Mike Szczys
|
[
"clock hacks"
] |
[
"atmega324",
"clock",
"double sided",
"hall effect",
"induction",
"ir",
"led",
"pcb",
"POV"
] |
[Kizo] built
an extraordinary persistence of vision clock
. The design uses a PC cooling fan to spin the propeller-like PCB. As it goes around, a hall effect sensor synchronizes the illumination of the LEDs to draw the display. Power for the rotating electronics is transferred wirelessly via a transformer on the base and coil on the spinning board. The final version uses an ATmega324 microcontroller running at 20 MHz and has an IR receiver for changing the settings. The 3000 lines of code bring a lot of bells and whistles, including a menu system with a huge amount of settings from tweaking the clock display, to font selection for scrolling messages. Take a look at the demo after the break. The double-sided board looks like it’s pretty difficult to etch at home, but as you can see from
the forum post
(
translated
), [Kizo] did a great job on this build from start to finish.
[youtube=http://www.youtube.com/watch?v=Q1saYuGyw7A]
| 30
| 30
|
[
{
"comment_id": "189867",
"author": "Eirikur Hrafnsson",
"timestamp": "2010-10-03T13:11:35",
"content": "Wow that is amazingly well done! Make a kit :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189875",
"author": "Marcus Quintilian",
"timestamp": "2010-10-03T13:52:20",
"content": "that is amazing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189876",
"author": "Brett",
"timestamp": "2010-10-03T13:56:28",
"content": "Wow, that’s amazing – The work on the interface, especially the slot and text entry looks like a lot of fun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189889",
"author": "svofski",
"timestamp": "2010-10-03T14:15:49",
"content": "Beautiful clock, very cool interface. And I particularly like bladerunnerish colours, even though probably this is a camera artefact and irl the colours are way off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189903",
"author": "Mike",
"timestamp": "2010-10-03T14:38:52",
"content": "Excellent work, really nice product!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189904",
"author": "Derek Vance",
"timestamp": "2010-10-03T14:43:41",
"content": "This is truly fantastic work, it makes me want to build one myself!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189914",
"author": "SS",
"timestamp": "2010-10-03T15:17:18",
"content": "Way to cool! Any chances we can peek at the schematics?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189922",
"author": "Osgeld",
"timestamp": "2010-10-03T15:36:47",
"content": "yea that is tight",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189924",
"author": "adamziegler",
"timestamp": "2010-10-03T15:38:27",
"content": "This was very nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189925",
"author": "M4CGYV3R",
"timestamp": "2010-10-03T15:39:12",
"content": "Holy shizzle……that guy’s like a god of interface design.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189941",
"author": "Inz",
"timestamp": "2010-10-03T16:05:02",
"content": "I love it how he solved the power supply problem on a rotating connection. No connection.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189944",
"author": "embedded",
"timestamp": "2010-10-03T16:14:52",
"content": "Cool! This one use hall sensor to synch LEDs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189946",
"author": "Vadim",
"timestamp": "2010-10-03T16:16:44",
"content": "Thats just awesome!Now I want to make it too :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189950",
"author": "Grimm",
"timestamp": "2010-10-03T16:27:47",
"content": "Great design. I’ve been thinking lately about a way to use one of these in my car’s instrument panel for a cheap, expandable digital tach. More useful for me than most because it’s becoming an EV (lots of battery/pwm controller data to display) and the only other system as flexible costs close to $900.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189952",
"author": "RadBrad",
"timestamp": "2010-10-03T16:33:07",
"content": "An amazing POV project for sure!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189977",
"author": "Mesmer",
"timestamp": "2010-10-03T17:26:23",
"content": "Awesome work indeed.I was wondering if anyone could find more info about the transformer used for power transfer at the moving side. I see there’s a post where he’s talking about having problems with initial design and then something about low dropout regulator and flyback converter. Sadly i can’t make much sense of what google translate is showing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189986",
"author": "jukus",
"timestamp": "2010-10-03T17:33:07",
"content": "future product developer right there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190120",
"author": "projectbluebook",
"timestamp": "2010-10-03T19:56:28",
"content": "nice clock, wonder if someone can make one using reused HP printer glass, LEDs and motors?another thought, use a brushless motor mounted behind the glass with a magnetic coupler to spin the assembly for a totally enclosed setup..something like this could be useful for displaying video on the cheap?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190122",
"author": "grenadier",
"timestamp": "2010-10-03T20:00:44",
"content": "That is amazingly kickass, and he should sell kits. The only problem I see with it is that it spins. Where there is spinning there is noise…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190274",
"author": "GeekMan",
"timestamp": "2010-10-04T00:57:01",
"content": "Great job ALSO LOVE THE DRUM AND BASS track :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190316",
"author": "chrelad",
"timestamp": "2010-10-04T02:13:53",
"content": "Very cool :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190347",
"author": "minimike",
"timestamp": "2010-10-04T03:06:04",
"content": "That looks fantastic !Can’t find the code though 8( , anoyone see it ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190636",
"author": "matt",
"timestamp": "2010-10-04T14:45:28",
"content": "Entry for dragons den this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190973",
"author": "sgf",
"timestamp": "2010-10-04T21:45:52",
"content": "That’s rubbish, and I know little kids who could do better. In their sleep.Just kidding! It seems sufficiently nice that even the trolls aren’t bothering to attack it! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191149",
"author": "DeFex",
"timestamp": "2010-10-05T01:48:23",
"content": "Has anyone seen a oscilloscope type POV visualizer like this? i think it would be cool to be able to just have your “clock” turn in to an instrument when you need it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192300",
"author": "dan fruzzetti",
"timestamp": "2010-10-06T17:10:51",
"content": "Absolutely, astonishingly jaw-dropping. I would buy this for three or maybe four figures (any time I leave the classroom and have that kind of cash). Could the author provide a difficulty rating, 0-10 where 0 is stupid-easy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192304",
"author": "dan fruzzetti",
"timestamp": "2010-10-06T17:15:25",
"content": "@grenadier: you could get a really big pabst noiseless fan (they’re not noiseless but they are very quiet when balanced properly) or you could use something big, like a Hunter no-contact ceiling fan motor. They’re sufficiently quiet that they are almost not heard by even myself (I don’t see too well, but I hear very, very well)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "404398",
"author": "suman",
"timestamp": "2011-06-11T14:05:47",
"content": "hi, this is a nice project. i want to make it. so plz. send me the parts list, circuit design, and making process. thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "725596",
"author": "Beth",
"timestamp": "2012-08-07T03:45:29",
"content": "I am looking for the code for this, anyone have it? Please and thank you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "725601",
"author": "Beth",
"timestamp": "2012-08-07T03:52:13",
"content": "This is cool. I am making it. does anyone have the code and a list of things requires to make it. Or some form of an instruction manuelPlease and thank you :)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.090313
|
||
https://hackaday.com/2010/10/02/decoding-mp3-in-python/
|
Decoding MP3 In Python
|
Mike Szczys
|
[
"Software Hacks"
] |
[
"codec",
"decoder",
"h.264",
"mp3",
"python"
] |
We all listen to them, but do you know how the compression for an MP3 file actually works? [Portalfire] wanted to find out, while honing his Python skills at the same time. He’s been working on
an MP3 decoder in the Python language
. So far he’s had some success, with
the first working decoder
clocking in at just 34 times slower than real-time. But since then
a bit of optimization improved that
to 10 times slower.
Sure, it’s not a usable module yet but his goal of learning the algorithms has been reached. A combination of reading about the standard and looking at code from other projects made that possible. In the future he plans to try the same thing with the H.264 codec.
| 32
| 32
|
[
{
"comment_id": "189455",
"author": "Ken",
"timestamp": "2010-10-02T21:09:21",
"content": "It’s an interesting project. Most “real” decoders are heavily optimized which decreases code readability. This is a lot of educational value to this project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189459",
"author": "portalfire",
"timestamp": "2010-10-02T21:13:33",
"content": "If anyone is interested the python H.264 decoder is also complete. It has a frame viewer to help visualize the codec. Its at:http://bitbucket.org/portalfire/pyh264",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189469",
"author": "TD-er",
"timestamp": "2010-10-02T21:33:33",
"content": "Well, since useable speed isn’t an issue, I’d like to see the HDCP encryption in well-readable code :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189473",
"author": "charper",
"timestamp": "2010-10-02T21:38:46",
"content": "Python is normally an interpreted language, and will suffer in performance compared to something like C.I am pretty surprised, even considering non-optimized and interpreted code, that it can’t play in real-time on modern hardware.Cool stuff. I agree w/ Ken as well – I’m sure you’ll learn a lot and teach all of us something along the way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189475",
"author": "th0mas",
"timestamp": "2010-10-02T21:48:36",
"content": "There’s plenty of uses for an mp3 decoder not requiring realtime performance. Analysis, reconversion, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189490",
"author": "NatureTM",
"timestamp": "2010-10-02T23:04:22",
"content": "Sounds like torture…I like it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189494",
"author": "ThorSummoner",
"timestamp": "2010-10-02T23:33:24",
"content": "Glad to hear a python story every now and then; i’m working on a .obj to .vmf converter in python and enjoying the python language in general. Kepp up the good work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189548",
"author": "TJ",
"timestamp": "2010-10-03T02:29:49",
"content": "There’s still a bit of scope in that code for optimization (without obfuscation), without resorting to psyco.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189607",
"author": "mrwtf",
"timestamp": "2010-10-03T03:32:11",
"content": "cumtime? really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189666",
"author": "bilbao bob",
"timestamp": "2010-10-03T05:41:29",
"content": "You know, this is actually great work. I think the inverse operation would be -ahhh- illustrative. seriously, if you’re within 10x of real-time, you’re doing great.One problem (a big problem) with most scripting languages that try awfully hard not to be procedural is that they’re dog slow. I prefer fast development to fast languages, but I don’t like the tendency towards unnatural abstractions found in some of the newer languages.I do, however, like the languages. MP3 decoding is a pathological case, so it will do a lot to improve your ability to optimize code.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189684",
"author": "M4CGYV3R",
"timestamp": "2010-10-03T06:29:49",
"content": "Or you could just go look up the file specification and write a decoder that works the first time…A good place to start:http://en.wikipedia.org/wiki/MP3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189700",
"author": "jklu",
"timestamp": "2010-10-03T07:28:14",
"content": "Well, if it’s to slow you can always cast it in silicon using something like myhdl :-)http://www.myhdl.org/doku.php/start",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189744",
"author": "Thor",
"timestamp": "2010-10-03T09:13:02",
"content": "Yes, it’s better to make an efficient decoder, but this can be an interesting way to learn how does that work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189746",
"author": "Anonymous",
"timestamp": "2010-10-03T09:18:57",
"content": "Python is not “interpreted” — it’s compiled to byte code and then run. The same applies to Perl, Ruby — and, since very recently, Javascript is compiled or JIT’d in at least Gecko and WebKit browsers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189752",
"author": "therian",
"timestamp": "2010-10-03T09:55:06",
"content": "so why he chose Phyton in the first place ? I don’t see how C or C++ code wold have less educational value",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189753",
"author": "Anonymous",
"timestamp": "2010-10-03T09:55:57",
"content": "Am I the only one that lol’d at “cumtime” in the posted image? :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189832",
"author": "hmm",
"timestamp": "2010-10-03T11:44:20",
"content": "cumtime *giggle*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189840",
"author": "Alan",
"timestamp": "2010-10-03T12:13:35",
"content": "I’d like to see small computationally heavy segments offloaded to a python method written in C. It may be possible to have code readability and 1x playback thanks to python’s extensibility.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189844",
"author": "TTSDA",
"timestamp": "2010-10-03T12:28:08",
"content": "Cumtime. LOL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189845",
"author": "dkr",
"timestamp": "2010-10-03T12:29:12",
"content": "At least in LuaJit, calls to C code are really expensive (because the JIT is getting disabled)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189848",
"author": "awesome",
"timestamp": "2010-10-03T12:34:58",
"content": "This is what I was gonna look for. Great! I have some MP3-encoded streams I’ve saved directly with wget, the song name changes throughout (in VLC/realtime) and I wanna get that metadata out of it so I don’t have to track down song names. This can allow me to split the stream when song name changed.I don’t know python but I could probably adapt it to what I do knowThanks a lot!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189865",
"author": "portalfire",
"timestamp": "2010-10-03T13:01:48",
"content": "The reason I choose python was implementation speed. Writing an algorithm without worrying about allocations or types really speeds things up. When I started I had no idea what the end speed would be. I thought a modern computer would have no issue decoding mp3s with python.Offloading the heavy lifting is a great idea. I ended up writing a c based “acceleration” module to my python H264 decode to make it bearable to work with. I hoped that the mp3 decoder could be relatively pure python.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189874",
"author": "ColinB",
"timestamp": "2010-10-03T13:46:00",
"content": "@Anonymous wrote: “Python is not “interpreted” — it’s compiled to byte code and then run.”Are you saying your computer has a CPU that executes Python bytecode? Amazing!The Python source code may be byte-compiled, but the bytecode is still executed by an interpreter. There is Psyco, which is a dynamic compiler for Python and it can bring significant performance improvements in some cases, but apparently still has some serious drawbacks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189877",
"author": "cantido",
"timestamp": "2010-10-03T13:57:37",
"content": "@colinbIf the vm has jit it is turninh the source/bytecode into native machine code for the host.Doesnt detract from the fact that people should just learn c/how these machines work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189899",
"author": "rallen71366",
"timestamp": "2010-10-03T14:33:31",
"content": "It looks like portalfire was doing this as a learning exercise. A VERY good exercise, by the way. Everybody saying,”why didn’t he do it in C/C++?” get F’s for being idiots. He already knows how to program in C (see his comments above). You don’t develop skill or creativity by having all the easy tools handed to you. You develop your “muscles” pushing against constraints. Portalfire is obviously pretty beefy…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189902",
"author": "Forrest Voight",
"timestamp": "2010-10-03T14:37:28",
"content": "Check out this Python JIT written in Python I’m working on –http://pyable.org/. This will be much more useful with my project (or pypy :).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189916",
"author": "saint",
"timestamp": "2010-10-03T15:24:26",
"content": "that would be an awesome addition to blender, mp3 audio makes it to easy reflect certain frequency’s in properties of any 3d object since it is already layered",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190628",
"author": "ovaries",
"timestamp": "2010-10-04T14:29:44",
"content": "did somebody call python readable up there?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190727",
"author": "Domo",
"timestamp": "2010-10-04T17:21:22",
"content": "I like better the Java language, but doing it on Python must be interesting",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192412",
"author": "cknopp",
"timestamp": "2010-10-06T20:30:56",
"content": "I wonder what the time would shrink to using the OpenCL Python interface.Offloading the python code to a decent GPU should speed things up.PS: I love the mp3 reflection layer/material for blender as well! Especially with Blender plugins like SLG from LuxRender!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192451",
"author": "Rollyn01",
"timestamp": "2010-10-06T21:50:27",
"content": "I wonder how well it handle variable bit-rates… *snickers @ cumtime*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193553",
"author": "ughg",
"timestamp": "2010-10-08T18:51:19",
"content": "No, it has indeed great educationnal value:it show how python really suck. I mean I have seen many microcontroller project (<80Mhz cpu) doing software mp3 decoding. And yet most people still think 34 time less performance is ok??? there must be something wrong…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.157186
|
||
https://hackaday.com/2010/10/02/diy-night-vision-monocle/
|
DIY Night Vision Monocle
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"camcorder",
"infrared",
"ir",
"led",
"monocle",
"night vision"
] |
This interesting mashup shows it’s easy to
make your own night vision goggles
. It makes use of just a few parts; the viewfinder from an old camcorder, a low-light security camera module, and a collection of infrared LEDs.
The low-light camera is capable of detecting infrared light, which is invisible to our eyes. If you shine the right IR LEDs on an object, they will cast enough light for the camera to clearly view the objects around you. The camcorder viewfinder is nothing more than a compact way to display what the camera sees. This would be easy to accomplish with
a wearable display
. It is also beneficial to have a large IR light source so you may consider modifying
that giant LED flashlight
you’ve been meaning to build so that it operates in the infrared wavelengths.
This project comes from the same source as the
Laser Microphone
we looked in on last month. Just like that one, there’s plenty of extra information about this build. There’s suggestions for choosing and focusing a light source. This includes using lasers as the source, and binoculars for long-range viewing.
| 29
| 28
|
[
{
"comment_id": "189404",
"author": "Cubby",
"timestamp": "2010-10-02T19:20:05",
"content": "Cool idea. Happen to have an old camera viewfinder laying around, along with a bunch o’ spare IREDS and a couple of security camera modules. Now I can do something with ’em.Never would have thought about doing anything like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189409",
"author": "grenadier",
"timestamp": "2010-10-02T19:28:03",
"content": "OLD!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189411",
"author": "grenadier",
"timestamp": "2010-10-02T19:29:48",
"content": "(added info)I made this a long time agohttp://teravolt.org/NightVision.htmKipkay made it even before that. (though I did not know at the time)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189420",
"author": "phil",
"timestamp": "2010-10-02T19:38:49",
"content": "looking at a build for it right now in “101 spy gadgets for the evil genius”old. and @grenadier is right, thats pretty much the exact one kipkay made. the one from the book doesn’t include the video out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189424",
"author": "Neckbeard",
"timestamp": "2010-10-02T20:04:40",
"content": "This is old as heck. Look at GBPPR’s website and you will see he done this years ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189429",
"author": "Limey",
"timestamp": "2010-10-02T20:17:19",
"content": "I know its a bit sad making references to anime, but this really reminds me of the really cool visor google/headset thing Motoko wears in ghost in the shell (series and movie, definitely lots of options to explore with a system like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189431",
"author": "Mike",
"timestamp": "2010-10-02T20:18:46",
"content": "This was cool & new to me – I like it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189442",
"author": "bothersaidpooh",
"timestamp": "2010-10-02T20:30:22",
"content": "i did this with a myvu glasses set modified with RGB LEDs for the authentic green NV setup and IR camera via right headphone lead with two triple junction 10mm LEDs a while back.apart from the sucky battery life (i used the unused left headphone lead to steal 3v3 from the mainboard) it works very well and the next step is to add some 3-D and/or false colour circuitry.Ran into a problem fitting the mc1377 into the casing but this is a minor inconvenience.if you use the more recent myvu with internal battery and a video sensitive switch to enable/disable the camera and LEDs this is completely self contained.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189443",
"author": "Tech B.",
"timestamp": "2010-10-02T20:32:11",
"content": "I am doing almost the same thing, the video glasses will be embedded into a Predator mask I’m makng. I’ll use a modded webcam to see in IR spectrum though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189460",
"author": "bothersaidpooh",
"timestamp": "2010-10-02T21:13:39",
"content": "@Tech B twitter, OMGWTFZPMBBQ or darnstadium",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189468",
"author": "Jake",
"timestamp": "2010-10-02T21:30:06",
"content": "Yeah, this guy is one of many who have done this and posted info about it on the ‘net.Just so you know. Nothing new.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189498",
"author": "Haku",
"timestamp": "2010-10-03T00:14:08",
"content": "The real trick to pulling this off well is by using a black/white CCD camera with the lowest LUX rating possible, ideally one that can see in light levels lower than 0.1 LUX.I like the idea of using LCD glasses and replacing the white LED backlight with a green LED for more ‘authenticity’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189521",
"author": "Solderguy",
"timestamp": "2010-10-03T01:06:45",
"content": "This reminds me of the night vision eye patch Solid Snake wears in Metal Gear 4: Guns of the patriots. That game is awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189534",
"author": "tman",
"timestamp": "2010-10-03T01:21:35",
"content": "The bad thing about this thing is that you’d literally be visible for miles to anyone else out there using a night vision device because of all the IR you’d be emitting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189540",
"author": "uzerzero",
"timestamp": "2010-10-03T02:17:38",
"content": "These are pretty cool since they’re homemade, but without some kind of a light interference assembly, if somebody hits the lights you’re in for a blinding flash of light.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189587",
"author": "Coldfire",
"timestamp": "2010-10-03T03:04:58",
"content": "@uzerzero These cameras have auto exposure, there would be only a short flash.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189589",
"author": "RadBrad",
"timestamp": "2010-10-03T03:12:33",
"content": "Thanks for posting my Night Vision Viewer project!As some have pointed out, this project was also from my 101 Spy Gadgets for The Evil Genius book, but I wanted to redo the project in color and more detail as I had limited space in that book.I hope to add videos of the device in action soon.Cheers,RadBrad",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "893755",
"author": "Jason Buneo",
"timestamp": "2012-11-28T19:32:23",
"content": "@RadBrad,I tried building the night vision viewer that you had posted here, but I ran into a problem with connecting the video out wire of my camera with the video in wire of my viewer. I used an old crt viewer from a JVC camcorder, and I got the unit to power up successfully and was able to feed the original wire from the camcorder to the viewer and see the images with no problem. I was also able to see the video output from my board camera when I connected it to my tv. The picture showed up fine. It was when I tried to join the two when I would get no video. Have you experienced anything like this before? Do you know if JVC has a different format for video output in their camcorders vs that of an RCA? Is it an impedance issue? I am so close to finishing this project, but I can’t get the two key pieces to work together. An guidance you may have would be well appreciated.Regards,Jason",
"parent_id": "189589",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "189597",
"author": "nuconcept",
"timestamp": "2010-10-03T03:25:58",
"content": "Has anyone seen the night vision Spy Gear toy Radio Shack has for like $50? Its amazing and looks very hackable… I’d check out the video watch too!Crazy times!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189658",
"author": "Tech B.",
"timestamp": "2010-10-03T05:05:53",
"content": "@bothersaidpoohThishttp://twitter.com/darnstadium?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189662",
"author": "bilbao bob",
"timestamp": "2010-10-03T05:27:47",
"content": "The hip kids do this with 0.03 lux CCD cameras ( if you have significant money, you can blow a lot on cameras claiming 0.00005 Lux but which really do .001 – rarely), a peltier cooler setup to chill the camera which significantly drops the visual noise and an old very fast lens rich field zoom macro lens, or if you’re in it for fun, any big old zoom or spotter scope of f5 or better.That’s right! You too can make hilarious youtube videos of celebrities doing questionable things at yard sales and aging politicians attempting to relive their youth with young, perky and not entirely attractive assistants.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189680",
"author": "Anonymous",
"timestamp": "2010-10-03T06:15:05",
"content": "Didn’t they do this exact build in a Make Weekend Project video a couple years ago?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189750",
"author": "strider_mt2k",
"timestamp": "2010-10-03T09:49:30",
"content": "Nice build!I always wanted to make something like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189791",
"author": "bothersaidpooh",
"timestamp": "2010-10-03T10:56:20",
"content": "@Tech B, yeah.i also discovered that a relatively simple way to get false colour is to read the analogue level and switch the signal to the mc1377’s red, green or blue inputs using a 74HC4066.this also has the advantage of generating relatively pure colours.interestingly there might be a way to overlay text onto the video stream using a PIC with horizontal pulse counting, and do colour directly using a fast video buffer such at the 23K256.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189836",
"author": "Johnnymoha",
"timestamp": "2010-10-03T11:59:58",
"content": "you can scan power levels with this. over 9000",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190140",
"author": "Daniel Molina",
"timestamp": "2010-10-03T20:37:38",
"content": "This looks great, probably the best DIY geek toy that I’ve seen in many time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "195064",
"author": "Pup",
"timestamp": "2010-10-11T10:39:03",
"content": "Presumably you could use two seperate viewfinders and cameras for stereoscopic vision and depth. Would chew through batteries though…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334762",
"author": "Brent",
"timestamp": "2011-02-16T16:32:43",
"content": "Cute. Notice all the newton’s rings in his images? That’s the short answer for “why lasers don’t make particularly good spotlights”.It’d be nice to see a comparison of his laser setup to commercial infrared spotlights.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1006713",
"author": "r singh",
"timestamp": "2013-05-22T07:40:44",
"content": "mike,can u possibilly give a circuit diagram to this remarkable project and what should one do to make this fascinating project cover a distance say about 200meters",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.470576
|
||
https://hackaday.com/2010/10/02/rc-ppm-hacked/
|
R/C PPM Hacked
|
Jakob Griffith
|
[
"Wireless Hacks"
] |
[
"atmega8",
"control",
"flying",
"model aircraft",
"ppm",
"rc",
"remote",
"usb"
] |
[Thomas Pfeifer] has taken the PPM signal produced by model aircraft wireless controllers, and with an ATMega8,
converted the signal to act as a USB joystick
. Which means you can now use a standard R/C remote control to fly model aircrafts on your computer. Of course now with PPM decoded you could also use the signal to control any electronic device. Like your
mower
,
iPod
, and we’ve even seen
remote controlled pellet guns
. Catch a video of [Thomas] flying a simulated
quadrotor helicopter
after the jump.
[Thanks Max]
[youtube
http://www.youtube.com/watch?v=xRP6-gmG-i4&feature=player_embedded%5D
| 26
| 26
|
[
{
"comment_id": "189307",
"author": "anontroll",
"timestamp": "2010-10-02T17:17:42",
"content": "has been done many times before. what’s novell?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189310",
"author": "Jake",
"timestamp": "2010-10-02T17:25:45",
"content": "This writeup seems to imply that he “decoded” some unknown signal, which isn’t the case. He hastranslateda known (and well documented) signal in to a different signal which can be used as a joystick. Just so you know…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189314",
"author": "Haku",
"timestamp": "2010-10-02T17:44:18",
"content": "Yeah I was scratching my head at the “hacked” word, especially as you can already buy off-the-shelf cables (or make your own using info online) for linking your RC controller to your PC for flight sims etc. through the trainer / DSC port.I’ve been considering buying such a cable for my Fly Sky GT2 trigger controller but the RC car sims I’ve seen out there don’t seem that great enough to warrant spending a few coins.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189354",
"author": "spagett",
"timestamp": "2010-10-02T17:55:14",
"content": "wow, yeah, been done. he basically just made something that you can easily buy from about any rc place…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189370",
"author": "owen",
"timestamp": "2010-10-02T18:23:54",
"content": "Wouldn’t it be easier to use the audio line in to read this? just sayin’. I know it’s not quite the point though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189399",
"author": "Alston",
"timestamp": "2010-10-02T19:11:32",
"content": "Here’s a good explanation on the encoding of a PPM frame:http://paparazzi.enac.fr/wiki/Image:RC_Receiver_Timing_Diagram.jpgThe guys on the Paparazzi project also have a board based on an ATmega 328 that will intercept individual R/C channels and encode them into one PPM signal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189406",
"author": "ril3y",
"timestamp": "2010-10-02T19:21:23",
"content": "Quite honestly I don’t know if I have been googling the EXACT wrong thing but I have been looking for information on how to hook up my 2.4ghz controller to an uC etc. So at the risk of sounding stupid to the hackaday trolls.. Does anyone know where I can read more about getting the controller receiver hooked up to a uC? Not sure it matters but its a 6 channel.Thanks guys,ril3y",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189448",
"author": "sneakypoo",
"timestamp": "2010-10-02T20:48:10",
"content": "ril3y: Did you try reading the site the article linked to?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189449",
"author": "dave",
"timestamp": "2010-10-02T20:48:38",
"content": "HAD should stand for Hacked A Decade ago. There’s been device drivers for remote control transmitters for over a decade now",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189451",
"author": "ril3y",
"timestamp": "2010-10-02T20:59:18",
"content": "I tried however it looks like google translate is not working for me right now? But I will try it again later. My German is not soo good :)Ril3y",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189453",
"author": "sneakypoo",
"timestamp": "2010-10-02T21:07:35",
"content": "ril3y: Or you could just click the link that says “This page in english” ;)http://thomaspfeifer.net/ppm2usb_adapter_en.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189466",
"author": "ril3y",
"timestamp": "2010-10-02T21:22:57",
"content": "Whoops… Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189467",
"author": "Jake",
"timestamp": "2010-10-02T21:29:18",
"content": "@daveLMAO",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189505",
"author": "praetorious",
"timestamp": "2010-10-03T00:21:24",
"content": "Not to downplay his work, but this has been done several times, try:http://alessioandrea.altervista.org/rcjoyng2.html,among others.Also, does this look a bit familiar?http://alessioandrea.altervista.org/rcjoyng2_gallery4.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189510",
"author": "Shadyman",
"timestamp": "2010-10-03T00:43:06",
"content": "@anontroll:Wikipedia says “Novell is a multinational software and services corporation headquartered in Waltham, Massachusetts.”/trolling a troll?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189535",
"author": "Coligny",
"timestamp": "2010-10-03T01:23:28",
"content": "What is this joke ? Esky controllers as well as walkeras when bundled with a rc chopper are provided with a free usb connection wire and copy of freeware simulator for training purpose…the full USB only controller 4 or 6 axis cost around30 buck on chinese discount stores…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189539",
"author": "Dave",
"timestamp": "2010-10-03T02:17:08",
"content": "Good implementation for the ATMega8. Here’s the one that I’ve been using for a few years on the microchip side. Link goes to rcgroups.http://www.rcgroups.com/forums/showthread.php?t=508122Definitely a hack, definitely useful. Only one complaint- been done before many times over.Good work on the ATmega8 implementation!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189591",
"author": "Bill",
"timestamp": "2010-10-03T03:13:43",
"content": "Didn’t know it was done before, but still think it’s useless when I can connect my existing RC controller to my computer already via a $6 cable I bought off ebay.Maybe if I create a hack of adding a PS2 cable to my wireless keyboard to connect it to my computer HAD will feature it!Alright, that was low, and I’m sorry. I just couldn’t resist.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189611",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-03T03:45:07",
"content": "It’s only a matter of time before someone hacks a flight simulator to send fly-by-wire signals so anyone with a laptop can safely land a new airliner should the pilot become incapacitated…“can i do that in ‘excel?'”gotta love scott adams.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189679",
"author": "puli",
"timestamp": "2010-10-03T06:13:43",
"content": "I am pretty sure you can do this with your PC sound card. I had done this some time back when I was learning to fly model airplanes. I hooked up my Spektrum DX6i controller to the PC using an audio cable and used FMS(Flying Model Simulator) and PPJoy.I will try to remember details and maybe write up a blog. This comes in handy when you are trying to learn flying and each crash could cause about $10 damage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189683",
"author": "M4CGYV3R",
"timestamp": "2010-10-03T06:23:29",
"content": "Sometimes I feel like the A380 is about that easy to fly. Just push a couple buttons and go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189726",
"author": "xorpunk",
"timestamp": "2010-10-03T08:36:41",
"content": "This isn’t exactly hard to do, its just that the corporate-bob and HAM type who usually use the stuff that has this protocol don’t like reverse engineering.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189751",
"author": "strider_mt2k",
"timestamp": "2010-10-03T09:54:07",
"content": "hack? intercept?Words like that imply that this is something covert that’s been outed.It’s not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189837",
"author": "S55MX",
"timestamp": "2010-10-03T12:07:19",
"content": "Not new but why not.I hoped that it’s just a misspell for signal name, that someone finally decoded the 2,4Gh signal (like the Spectrum uses) :P. Well next time :)For PPM here some additional reading:http://www.aerodesign.de/peter/2000/PCM/PCM_PPM_eng.htmlAnd for PIC fans:http://alessioandrea.altervista.org/rcjoyng2.htmlOf topic: Does someone have the information how to build “DXTR Head Tracker Interface for DX7”(http://readymaderc.com/store/index.php?main_page=product_info&cPath=59&products_id=252&zenid=4g042s1hlif0hh862osr2akff4)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189919",
"author": "Anonymous Coward",
"timestamp": "2010-10-03T15:29:32",
"content": "I’ve done this and the PC commanding the remote, and thought it was so common and lame no one could consider this on H.A.D.Don’t get me wrong, this is great craftsmanship of a custom interface. Nice work here, but how much credibility can you pump out of hackaday claiming hax everywhere. No I haven’t got over those fu*king led throwies articles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190742",
"author": "keystoneclimber",
"timestamp": "2010-10-04T17:56:42",
"content": "ril3y:If you want to connect a radio to a uC, one approach that I’ve done in the past is to use voltage injection. I was only concerned with the altitude channel. On the inside of the radio the control sticks are attached to pots that form voltage dividers. If you disconnect the wiper from its circuitry and instead inject a voltage from a DAC and uC, you can effectively control that channel programmatically.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.587882
|
||
https://hackaday.com/2010/10/02/android-apps-using-processing/
|
Android Apps Using Processing
|
Mike Szczys
|
[
"Android Hacks"
] |
[
"android",
"emulator",
"processing",
"sdk"
] |
Processsing has come to Android. [Jer] posted a guide to setting up the software and
coding your first Processing app for Android
. The module which supports Google’s mobile operating system is not yet part of the stable Processing release but it works and is
available to download and use
. It provides support for Android version 2.1 and newer, playing nicely with the SDK to emulate your sketches during development. The Hello World app seen above uses just a few lines of code to draw a white box on an orange background. After you’ve installed and tested the tools you’ll be developing in no time.
This makes a great addition to
your Android development tool bag
.
[Thanks Tech B]
| 11
| 10
|
[
{
"comment_id": "189277",
"author": "hmm",
"timestamp": "2010-10-02T15:36:26",
"content": "I’d rather have a Processing 101 than a C Sharp Development 101.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189290",
"author": "Neil",
"timestamp": "2010-10-02T16:30:52",
"content": "Ditto.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189291",
"author": "????",
"timestamp": "2010-10-02T16:40:49",
"content": "+1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189293",
"author": "Tech B.",
"timestamp": "2010-10-02T16:45:29",
"content": "Processing 101 would be nice, but I would rather see C or ASM 101",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189294",
"author": "r_d",
"timestamp": "2010-10-02T16:46:19",
"content": "^all three of these.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189382",
"author": "Abbott",
"timestamp": "2010-10-02T18:50:32",
"content": "Agreed with C, ASM, Processing. This is [hardware] hack-a-day. ASM and C are key to understanding the MCU’s that are featured in so many of the posted articled. Also (I promise, I’m not going to use this one as a bash), the next step beyond Arduino is coding in C (or if you’re adventurous and/or need precise timing and perfect use of code space, ASM)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1013716",
"author": "D",
"timestamp": "2013-06-07T15:04:24",
"content": "ASM was cool in 80ties and 90ties. Now we’re mutltiplatform, object oriented, portable and visual. Who cares anymore about ASM? Times of Jacky Qwerty are long gone.",
"parent_id": "189382",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "189383",
"author": "xeracy",
"timestamp": "2010-10-02T18:51:02",
"content": "processing is such an easy development environment to work with. It doesn’t have a lot of nuances that more serious languages have that would necessitate a tutorial series. Does anyone know if the OSCp5 libraries will work on Android? I would love to make an app that could speak with my desktop processing program that listens for OSC commands.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189635",
"author": "knuckles904",
"timestamp": "2010-10-03T04:50:34",
"content": "very cool. This might break the camels back keeping me from getting an android device to play with",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189870",
"author": "beadedbird",
"timestamp": "2010-10-03T13:29:04",
"content": "yay been waiting ages for this. Can we please please have a Processing interpreter running on Android itself?Also, anyone tried interfacing Arduino with Android Processing apps, via the device’s USB?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190409",
"author": "Hip",
"timestamp": "2010-10-04T05:43:27",
"content": "I always needed an app with a white square on an orange background!!! Yess!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.69803
|
||
https://hackaday.com/2010/10/02/usb-ports-hidden-inside-gaming-mouse/
|
USB Ports Hidden Inside Gaming Mouse
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"cartridge",
"g5",
"hub",
"logitech",
"mouse",
"usb",
"weight"
] |
[Gigawatts]
built a pair of USB ports into his mouse
and there’s enough room to plug-in small USB drives and dongles. After seeing
Thursday’s storage mouse hack
he decided to tip us off about the post.
He started with a Logitech G5 gaming mouse. The wireless version of this mouse has a battery pack, but on the corded version
this space is used for a weight cartridge
. Since he didn’t really care about that feature he ditched the weights, added a USB hub inside, and positioned the dual ports as seen in the photo. The void is deep enough for the mouse to function normally while hosting medium to small-sized devices. This is a fantastic solution that’s at least as impressive as Apple adding USB ports to a keyboard. We’d love to see it as a factory option.
Update:
Video after the break
[flickr video=http://www.flickr.com/photos/22446672@N00/5051945013/]
| 26
| 26
|
[
{
"comment_id": "189252",
"author": "therian",
"timestamp": "2010-10-02T13:07:11",
"content": "so in order to read usb stick he need to stop mouse usage?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189255",
"author": "Marc",
"timestamp": "2010-10-02T13:14:35",
"content": "yes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189257",
"author": "Badger",
"timestamp": "2010-10-02T13:44:40",
"content": "I own a G500 (its similar to the G5) and I can see how the hack would be carried out, since it uses the same style weights. I been looking where to unnecessarily stick a USB hub inside of a device for a while. I think I would find the hub inside of a mouse not very practical. But then again ingenuity does not always equal practicality. I would still give Gigawatts credit for squeezing a hub into such a small space such as a mouse and keeping the mouse operating.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189259",
"author": "Sam",
"timestamp": "2010-10-02T13:46:02",
"content": "@therianUmmmm, from the summary “The void is deep enough for the mouse to function normally while hosting medium to small-sized devices”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189261",
"author": "cpmike",
"timestamp": "2010-10-02T13:54:16",
"content": "Stop mouse usage, only to flip it over and plug something in… I can kind of understand the idea but personally I never leave USB mem sticks plugged in for more than a minute, in which case the keyboard-mounted ports would make more sense. This has its uses though, what about usb bluetooth dongles and stuff, devices that you might want to leave plugged in semi-permanently. You could avoid tying up the few ports available on the front of the PC, and not need an ugly hub sitting on the desk.I’m just surprised it fit… but I guess he got the right mouse to try it with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189262",
"author": "Freax",
"timestamp": "2010-10-02T13:57:06",
"content": "Would be especially nice to use with a laptop that doesn’t has Bluetooth or very few ports. No unplugging the drives/dongles, only throw the mouse in the bag and voila",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189267",
"author": "Peter",
"timestamp": "2010-10-02T14:30:07",
"content": "…until you’re trying to find which port that damn usb drive is plugged into :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189288",
"author": "Addidis",
"timestamp": "2010-10-02T16:26:06",
"content": "I think this handles the whole “a hub will show up when you plug in your secret storage mouse” quite well. Much more useful this way imo (if your gonna put a hub in your mouse)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189292",
"author": "Fallen",
"timestamp": "2010-10-02T16:43:22",
"content": "That’s pretty well executed :D good job",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189301",
"author": "jeditalian",
"timestamp": "2010-10-02T17:08:36",
"content": "what i was thinking when i saw the last one: i would like to see a normally functioning microsd slot, click in, click out, on a mouse. normal size SD would be ok too, but only as horizontally mounted. microSD would just be easier to make unnoticable, and you wouldnt have to find your micro to standard sd card adapter",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189304",
"author": "Mr Hacker",
"timestamp": "2010-10-02T17:12:25",
"content": "maybe , he did this just so he can connect his wireless mouse dongle and get good coverage as both are on the same desk (wireless mouse and the other mouse) and also hide the ugly dongle out of his sight",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189364",
"author": "Ziky",
"timestamp": "2010-10-02T18:11:04",
"content": "What is the purpose of this? I don’t get it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189378",
"author": "chrome",
"timestamp": "2010-10-02T18:46:57",
"content": "I hope you’re not implying apple invented usb ports on keyboards because it’s been done long before",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189387",
"author": "jim",
"timestamp": "2010-10-02T18:58:30",
"content": "Apple didn’t invent adding USB ports to a keyboard, nor would it be impressive if they did.Man, this dumbing down of the term ‘hack’ and the general low quality of the articles is ruining the blog, but pushing Apple in my face has killed it.Goodbye.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189413",
"author": "Eirinn",
"timestamp": "2010-10-02T19:35:31",
"content": "@Jim good riddance.Nice hardware hack – and usable too. Just add a plate and it’s completely hidden.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189415",
"author": "Eirinn",
"timestamp": "2010-10-02T19:37:33",
"content": "Uurgh i meant a full plate since it wouldn’t be completely hidden with the factory “lid”.Adding a Micro SDHC + adapter with about 8GB seems usable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189620",
"author": "Michael Chen",
"timestamp": "2010-10-03T04:06:55",
"content": "@EirinnWhy a plate. Go simple, a waranty sticker (or similar). Easier to print, mount, dismount, and remake after loosing it. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189724",
"author": "Tony",
"timestamp": "2010-10-03T08:27:12",
"content": "Sony use to make a mouse that had a MemoryStick slot in it. I’m not entirely sure why.And Dell have had USB ports in keyboards for a while. Quite handy, but the downside it the one I have is only USB 1. Still ok for the mouse & graphics pad I have.I got a cheap hub off eBay to ‘upgrade’ it to USB 2. Someday…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189755",
"author": "strider_mt2k",
"timestamp": "2010-10-03T09:59:54",
"content": "WOW, USB on a KEYBOARD? Apple did that?Golly.Yeah, nice hack, but you know where that other crap belongs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189880",
"author": "ling sm",
"timestamp": "2010-10-03T14:00:04",
"content": "i want to see one with a usb mic build into it, so i could now talk to my mouse when i am doing skype video with my boss or associates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190060",
"author": "Eirinn",
"timestamp": "2010-10-03T18:56:57",
"content": "@michael i like it, much more inconspicuous :D “who would have expected evil to be hidden under a hello kitty sticker!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190550",
"author": "R4",
"timestamp": "2010-10-04T12:52:57",
"content": "I guess this would Be great for flash drives, but flash drives only, because we wouldn’t want wires hanging and dragging out of the back of the mouse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190623",
"author": "Volfram",
"timestamp": "2010-10-04T14:23:27",
"content": "I seem to recall Apple had a mouse port on their keyboards before USB existed, though I was very young at the time, so my memory may be a bit fuzzy.Anyway.My best friend has a Logitech G9 which died, and when I mentioned a hybrid of this and the onboard storage mods, he gave it to me :DThe G9’s weight slot is on top, but it has a secondary housing that has to be removed for access. I’ve tried with the weight tray, though, and it can still be used perfectly well even with significant volume sticking out the back. It’s a bit narrow, though, I’m probably going to file it out to accept devices of a more typical scale.The nice thing about the top-mounted weight slot, of course, is that the mouse can be used with significantly larger devices plugged in than the G5, or I can instead use up to 2 very tiny devices and simply replace the cover. I’m planning on hiding a pair of the 7-gram weights directly inside of the mouse body, so unless you plug it in(or remove the cover), it should be entirely indistinguishable from a stock G9.Except for the non-stock cable replacement, as the stock cable is utterly and completely shot. I probably will want to cannibalize another nonworking mouse.(Never liked the G9’s cable, anyway)However, I have another mod that I need to finish before I can start this one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "194926",
"author": "mike",
"timestamp": "2010-10-11T03:36:36",
"content": "sun keyboard (pre-usb) also have the mouse port in the keyboardthe mouse itself is nearly identical pinout to the keyboard, the keyboard just connects it to the mouse serial line and power lineshttp://pinouts.ru/Inputs/keyboardsun_pinout.shtml",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4210097",
"author": "G. Mouse",
"timestamp": "2017-11-20T15:40:09",
"content": "that’s great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6246273",
"author": "nexus",
"timestamp": "2020-05-17T20:01:20",
"content": "this is cool as a tech you could have a usb drive with all your diagnostic software, o/s images etc and a usb wireless adapter (with drivers in usd drive) mounted in to the mouse for diagnostics.just plug the mouse in load the wireless driver and you have internet even if the pc’s own wireless adapter is down (assuming it is not ethernet only router).",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.760565
|
||
https://hackaday.com/2010/10/01/open-source-pick-and-place/
|
Open Source Pick-and-place
|
Mike Szczys
|
[
"cnc hacks"
] |
[
"pcb",
"pick and place",
"tweezers",
"vacuum"
] |
This is a
vacuum tweezers head for an open source pick-and-place
. Those are the machines that professional printed circuit board manufacturers use to populate a circuit board with components before heading to the reflow oven. [Drmn4ea] built it with at-home rapid manufacturing in mind. The black orb on the left is a webcam for optical placement. The needle in the middle is an interchangeable vacuum-tool head. The motor on the right allows for different attachments to be swapped in automatically to suit a variety of parts.
This interfaces with a 3-axis CNC machine and should be easily compatible with a RepRap, Makerbot, or similar device. We wonder how he plans to handle reels of components, but this is a well-executed first step in the journey to a complete solution.
Want to see a professional pick-and-place at work? Check out one of SparkFun’s machines busy build a board after the break.
[flickr video=http://www.flickr.com/photos/amagill/3449765030/]
| 16
| 16
|
[
{
"comment_id": "188981",
"author": "mess_maker",
"timestamp": "2010-10-01T21:36:31",
"content": "I love those machines, it is like watching a fish tank… very soothing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188983",
"author": "Jack",
"timestamp": "2010-10-01T21:41:26",
"content": "I bet you wouldnt like it that much if you would have to watch machines like these in some factory all day long. This looks industrial grade.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188990",
"author": "fabo",
"timestamp": "2010-10-01T21:51:06",
"content": "I never get tired of watching the SMT placement machines, but no one has the time to stand around and watch them. Slack ESD policy, no ESD jackets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189003",
"author": "jb",
"timestamp": "2010-10-01T22:43:12",
"content": "These aren’t too bad to watch all day unless someone changes your z height when you aren’t looking, and parts start getting slammed through boards. This looks like a nice setup, I don’t know that I’d be using a metal nozzle with it though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189008",
"author": "EdZ",
"timestamp": "2010-10-01T23:05:19",
"content": "I think that motor is for rotating the part for alignment with the PCB, not tool-changing. The knurl for changing the head is visible below the bracket, and is not attached to anything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189014",
"author": "Tod",
"timestamp": "2010-10-01T23:36:34",
"content": "I agree this LOOKS like a nice design. Very well thought out (or worked out) and nicely documented. Even the newest of newbie hackers could follow the docs and make this picker.BUT…I was hoping to get a look at how much this little gadget can do so far. Apply a vaccuum and attach to an scrapped printer carriage and show it at least moving parts from place to place. I completely understand –based on the description here– that it isn’t yet fully incorporated into “a 3-axis CNC machine and should be easily compatible with a RepRap, Makerbot, or similar device.” But isn’t making that claim at his point somewhat of a leap of faith?I was hoping to see this picker-n-placer doing something that demonstrates it SHOULD move to the next stage of installing it in a CNC, testing it, then programming, testing again, etc.No offense intended to [Drmn4ea] or Mike Szczys — just opining (or whining) that there ought to be some proof of function before posting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189021",
"author": "scienceguy8",
"timestamp": "2010-10-01T23:53:50",
"content": "@Jack: just want to reaffirm you don’t want to watch a pick and place all day, especially not in a large factory. Took a tour of a local TRW manufacturing plant where they make Honda airbag computers among other things. They use rapid pick and place machines. They can place 5 to 10 parts per second. It’s impressive to watch, but its like standing next to a gas generator, and with 6 of those machines running on one plant floor alone, I was rather ticked off that they didn’t include earplugs with the lab coats and anti-static straps.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189026",
"author": "Addidis",
"timestamp": "2010-10-02T00:35:57",
"content": "I am totally going to build a cnc , and one of these when its finished. In my opinion this is a quality post. Solid start to an incredible project. Caught early on showing thought and good design.Now I will have to keep checking for updates ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189077",
"author": "betterpnp",
"timestamp": "2010-10-02T03:14:45",
"content": "I’ve made a similar thing but it uses a hobby servo rather than stepper and pulley hardware. Hopefully the finished pnp machine will make it onto hackaday,",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189108",
"author": "Fallen",
"timestamp": "2010-10-02T05:07:02",
"content": "They are fascinating machines, I had the pleasure of working with some this summer. But I agree, you don’t want to have to watch them all day…After the first couple boards it gets pretty repetitive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189132",
"author": "andrew",
"timestamp": "2010-10-02T06:23:12",
"content": "One step closer to skynet…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189160",
"author": "pRoFlT",
"timestamp": "2010-10-02T07:42:14",
"content": "@andrew, One step closer. I thought it was 2010. Havn’et the robots already taken over already!We have these machines at work and i dont think i’ve ever felt the urge to stare at it while it runs.The xray machine for finding BGA solder bridges…now thats kewl to stare at, as long as your eyes are protected :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189161",
"author": "pRoFlT",
"timestamp": "2010-10-02T07:44:56",
"content": "p.s. Dear HAD, Wouldn’t it be nice to go back and change misspelled words from a post?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189268",
"author": "Entropia",
"timestamp": "2010-10-02T14:32:38",
"content": "The P&P-machine on the video is SLOOOOW. We have ESSEMTEC machines at my uni embedded production lab and they’re like blazing fast. Also it’s a nice line since it has an automated rack in the beginning and in the end, and a conveyor belt takes boards from a rack to P&P to reflow oven and back into a rack. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190222",
"author": "sariel",
"timestamp": "2010-10-03T22:50:13",
"content": "@pRoFITare you speaking of Havn’et, kewl, or the massive amount of i’s? btw not trollin, just askin bro.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190350",
"author": "Rochey",
"timestamp": "2010-10-04T03:16:46",
"content": "@EntropiaHow much do those PnP machines in your lab cost? Even the cheapest automated ones from Manncorp are $5K+This, along with a low cost CNC machine (take a look at Zen CNC) means you could have a simple PnP machine for less than $800.Frankly, if your building enough for production volume, then you can afford a CM (Contract Manufacturer).My use for this (I commented on his blog at CEXX) is simple … let me use it build proto’s, while I’m in the lab (garage) working on something else! ;)Cheers/R",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,364.903347
|
||
https://hackaday.com/2010/10/01/disco-drumming-with-piezo-sensitive-lighting/
|
Disco Drumming With Piezo Sensitive Lighting
|
Mike Szczys
|
[
"LED Hacks",
"Musical Hacks"
] |
[
"attiny2313",
"drum",
"dutch carnival",
"led",
"piezo",
"rgb"
] |
[Wilfred’s] brother outfitted a snare drum with LEDs for Dutch Carnival. They faded through different colors randomly and were a nice addition to the normal looking instrument, but [Wilfred] suggested that
the LEDs change color with each drum stroke
. He set out to design a controller circuit to provide the functionality and ended with a small package based around an ATtiny2313 microcontroller. A piezo buzzer is used to detect the vibrations inside the drum, each hit triggering a different color combination. The LEDs fade to off after each impact as if dying along with the sound, and when not struck for 30 seconds the system defaults to a red heartbeat pattern. See for yourself after the break.
We’d love to see this feature added to each drum in one of those
robotic drumsets
.
[youtube=http://www.youtube.com/watch?v=Rv88M1jl1K8]
| 18
| 18
|
[
{
"comment_id": "188876",
"author": "Mr. Sandman",
"timestamp": "2010-10-01T17:53:54",
"content": "trippy…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188878",
"author": "Derek",
"timestamp": "2010-10-01T18:06:19",
"content": "Thats Awesome, Would look cool with a whole set of lights like that with a band! Then just some guitars lights and some pyro teks! Mixed With a dark room, You Child can play a colored tambourine! Family Band!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188893",
"author": "fartface",
"timestamp": "2010-10-01T18:31:58",
"content": "very cool, drop the heartbeat as it distracts from the performance… but a whole drum core with these at night would utterly rock.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188896",
"author": "AK",
"timestamp": "2010-10-01T18:37:12",
"content": "the only thing i could think of during this…..million dollar idea to teach someone how to play drums – “follow the lights” (red bad, green good) or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188908",
"author": "Shugotenshi",
"timestamp": "2010-10-01T19:01:30",
"content": "Add this the ArcAttack’s performance with the Tesla coils.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188919",
"author": "NickS",
"timestamp": "2010-10-01T19:21:12",
"content": "AK,Or a Rock Band type setup using real drums.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189001",
"author": "soopergooman",
"timestamp": "2010-10-01T22:33:52",
"content": "Stinks of WIN!!!! now to put it in my car.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189041",
"author": "electroboxen",
"timestamp": "2010-10-02T01:45:04",
"content": "gave me an idea… if you hooked up the circuit to a transducer with a low-pass filter, you could have lights that beat with the music :3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189054",
"author": "MrX",
"timestamp": "2010-10-02T02:23:20",
"content": "Awesome. Does someone know the name of the music being played as soundtrack in the video?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189084",
"author": "Hackersmith",
"timestamp": "2010-10-02T03:44:45",
"content": "According to the youtube comments:search for: ministry of sound chilled 1991 2009 for the musicwhich leads to:http://www.ministryofsound.com/product/digitaldownload/downloads/download/ministryofsoundpresentschilledii1991-2009/And making me believe is the track:Mr. Scruff : Get A Move On",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189149",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-02T07:09:28",
"content": "how about a seizure warning for Japanese kids?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189154",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-02T07:16:35",
"content": "It’s a really great project though.That kid’s a little old for a pacifier, too. I mean, really; just distract him nonstop for like three days and he’ll forget about it forever even if he’s the hardest kid on earth to wean and it’ll be the best decision you’ve ever made.The red heartbeat pattern should not be nearly as bright; it should be subtle so it doesn’t distract you from the beat you’re trying to play.And is it possible for the pickup system driving the buzzer to detect hit intensity, or with the speed of the snare drum would its intensity always register as maxed out? Because if you could use the color information as feedback for the player, you could make a really special and flexible family of performance percussion instruments.Maybe hook it into the rest of your band and have red for ‘behind the beat,’ green for ‘very close to the beat,’ and blue for ‘ahead of the beat’ or something like that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189155",
"author": "John Meichle",
"timestamp": "2010-10-02T07:28:02",
"content": "@AKRock Band Controller Mod?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189220",
"author": "Eirinn",
"timestamp": "2010-10-02T11:20:56",
"content": "I’d put the light on the bottom of the drum so the floor lights up, that way seizures are avoided and the effect is retained :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189369",
"author": "matt",
"timestamp": "2010-10-02T18:22:58",
"content": "that is so damn cool… and to top it off they just happen to use THAT song in the video!my day = made",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189511",
"author": "reed",
"timestamp": "2010-10-03T00:47:21",
"content": "The track is actually Pacific 707 by 808 Statehttp://www.youtube.com/watch?v=gk5LinbN8HAOne of my favorite tracks, which makes this hack ever better!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189768",
"author": "Eric",
"timestamp": "2010-10-03T10:37:06",
"content": "@Dan Fruzzetti, thanks for the heads-up, always good to know that other people know better. I’ll let my son have his pacifier as long as he likes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "978040",
"author": "1nee",
"timestamp": "2013-03-14T06:31:39",
"content": "Hi Mike SzczysMay i know, are using Netduino or Arduino? Currently we are doing a project which is similar as yours. Do you mind sharing the code?Thank you!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.347443
|
||
https://hackaday.com/2010/10/01/next-generation-arduino-manufacturing-problems/
|
Next Generation Arduino Manufacturing Problems?
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"manufacturing",
"mega",
"pcb",
"quality",
"routing",
"uno"
] |
[The Moogle] just got his new Arduino Uno; wow, that was fast. What should have been a happy unboxing
turned sour when he took a close look at the board
. It seems that it exhibits several examples of sloppy fabrication. The the lower-left image shows unclean board routing, a discolored edge, and a sharp tooth sticking out from the corner. The shield header shown in the upper left is not flush with the board, resulting in a weaker physical union and a crooked connection. There are vias that look like they’re not be centered in the solder mask, and areas where raw copper is exposed.
It saddens us to see this because the original Arduino boards were so well manufactured. Keep in mind that this may be an isolated case, and as of yet the company hasn’t been given the chance to swap out the board for one that has passed a more rigorous quality control inspection. But if you’ve already ordered one of your own, take a close look and make sure you’re satisfied with it upon arrival.
Not sure what we mean by next generation Arduino? Take a look at
the new hardware that was recently unveiled
.
Update:
Here’s
a direct response from the Arduino blog
.
Update #2:
[Massimo Banzi], one of the founders of Arduino,
took the time to comment
on this post. It details the organization’s willingness to remedy situations like [The Moogle] encountered and also links to the recent Arduino blog post.
| 119
| 50
|
[
{
"comment_id": "188796",
"author": "redbeard",
"timestamp": "2010-10-01T15:55:53",
"content": "How about the fact that they’re so hell bent for leather to use everything AVR that it shows up as a ttyACM device in linux (the source of a lot of the problems with the launchpad). You’d think somebody would have tested that. Though, c’est la vie.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188802",
"author": "redbeard",
"timestamp": "2010-10-01T15:59:18",
"content": "also, this is dead on. i pulled it out of the package and without thinking ran my finger across the side and got a big fiberglass splinter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188803",
"author": "xeracy",
"timestamp": "2010-10-01T16:00:46",
"content": "LA VIE!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188810",
"author": "Mudo",
"timestamp": "2010-10-01T16:05:03",
"content": "New manufacture…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188811",
"author": "Mr Obvious",
"timestamp": "2010-10-01T16:06:06",
"content": "“Keep in mind that this may be an isolated case, and as of yet the company hasn’t been given the chance to swap out the board for one that has passed a more rigorous quality control inspection.”…But hey, let’s not have that stop us casting FUD around the intertubes.Oh Hackaday, how soon you forget that you are dependent on the Arduino… :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188815",
"author": "adam",
"timestamp": "2010-10-01T16:15:49",
"content": "this sucks i was really excited about the uno. i’ll probably stil end up getting one though.btw, a few weeks ago i got a duemillonove(sp?) from sparkfun for a project and when i unboxed it one of the shild headers was also bent i thought it just got bent during packaging and straightened it out maybe the ne manufactuer is making them too, i never thougt to look at the solder mask, but the edges were clean",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188820",
"author": "osgeld",
"timestamp": "2010-10-01T16:27:44",
"content": "yea 1 yutz so far has bought a board from “somewhere” (they wont say other than its a “repairable” company) and its crapBURN BURN BURN!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188823",
"author": "dbear",
"timestamp": "2010-10-01T16:33:52",
"content": "FUD?An honest review (with photographic evidence) is hardly a FUD campaign.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188828",
"author": "Tom Hargrave",
"timestamp": "2010-10-01T16:45:27",
"content": "The first two issues are minor problems with their board vendor. I’ve been a Engineer in the manufacturing business for years and have seen both of these issues. We would use the boards and provide feedback to the board house. The routing issue is probbly caused by a dull bit. The off center VIAs are actually just a shifted solder mask.The third issue – the connector not seated needs to be fed back to them because it is their issue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188831",
"author": "xorpunk",
"timestamp": "2010-10-01T16:54:52",
"content": "“Yo dawg I heard you like Arduinos”Only Arduino can make a 1 wire LED circuit look relevant and remotely interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188848",
"author": "biozz",
"timestamp": "2010-10-01T17:16:01",
"content": "are they still made in Italy? there known for there nice manufacturing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188850",
"author": "chemicaloliver",
"timestamp": "2010-10-01T17:19:55",
"content": "I received a new mega yesterday and my first impressions were similar.I’ve posted photos here:http://chemicaloliver.net/arduino/arduino-manufacturing-problems/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188861",
"author": "spiritplumber",
"timestamp": "2010-10-01T17:25:03",
"content": "no, which is the problem…./italian",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188864",
"author": "JB",
"timestamp": "2010-10-01T17:27:26",
"content": "Made in China now? :PDamn quality! Let’s make it cheaper!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188868",
"author": "Robin Theunis",
"timestamp": "2010-10-01T17:32:57",
"content": "That is just not acceptable. There where normally two quality checks. One at the board fab and one at the assembly. That exposed copper is NOT acceptable! The whole design has “flaws”. Arduino make fast but good an Arduino Duo!http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1285887736/0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188870",
"author": "UltraMagnus",
"timestamp": "2010-10-01T17:41:56",
"content": "hah, I guess it isn’t just china that can churn out crap. You pay all that extra for Italian manufacturing and still get rubbish./me waits for Chinese clones to be released next week",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188879",
"author": "Tom",
"timestamp": "2010-10-01T18:06:49",
"content": "I don’t know where Hack a Day got the idea that the Arduino boards used to be well made, I personally though they were notoriously bad, as a TA at a university we’ve ordered many Arduinos and although none were sent back for quality, they were all very slap dash.The headers were often bent, the IC would sometimes clearly have been put in at a cock-eye angle, we’ve had the USB metal housing fall off too.Overall they work but they are clearly not what I would consider well made, especially with the aforementioned rough edges.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188882",
"author": "Luke",
"timestamp": "2010-10-01T18:13:11",
"content": "Hopefully this is an isolated incident. Otherwise I’ll be buying the Chinese copies, though would rather have the money go to the people who keep the project going.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188883",
"author": "mowcius",
"timestamp": "2010-10-01T18:14:59",
"content": "http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1285887736/0Not so isolated…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188884",
"author": "George",
"timestamp": "2010-10-01T18:17:33",
"content": "@UltraMagnus: Me too. The Freeduino PCB I got from Seeed a couple of years ago is fabbed absolutely perfectly. Creating a well-made, aesthetically-pleasing PCB isn’t rocket science.Maybe Arduino plan to release a $50 “Premium Edition” for the really OCD fanboys? :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188886",
"author": "walt",
"timestamp": "2010-10-01T18:22:42",
"content": "can someone tell me what happens if the copper is left exposed? i’ve made PCBs and never tinned the traces. they work fine, but I now worry about their longevity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188887",
"author": "mowcius",
"timestamp": "2010-10-01T18:24:26",
"content": "“Otherwise I’ll be buying the Chinese copies, though would rather have the money go to the people who keep the project going”Well this is being enforced more now so there are less to be found. I would just recommend a nice derivitive board. Especially if you don’t need shield compatibility you can get some really nice ones.See this page for more info (Uno not included yet):http://www.duinoaday.co.uk/hardware.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188888",
"author": "mowcius",
"timestamp": "2010-10-01T18:26:12",
"content": "“can someone tell me what happens if the copper is left exposed? i’ve made PCBs and never tinned the traces. they work fine, but I now worry about their longevity.”See this other post by moogle:http://wtfmoogle.com/?p=1455If they connect to another metal they can corrode. Over time they will probably go green also.Mowcius",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188897",
"author": "Tom Hargrave",
"timestamp": "2010-10-01T18:38:59",
"content": "They wont corrode and they won’t go green. If anything the copper will turn dark just like a penny does and it wont hurt a thing.These boards like all other moderb boards are manufactured with solder mask over bare copper. It is common to have some bare copper somewhere on a board and as long as the copper does not cause a solder bridge it’s a non-issue.Tom",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188902",
"author": "Mooreslaw",
"timestamp": "2010-10-01T18:46:41",
"content": "“There are vias that look like they’re not be centered in the solder mask”Who’s writing this? ESL? No wonder HAD is looking for writers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188905",
"author": "mowcius",
"timestamp": "2010-10-01T18:53:33",
"content": "“They wont corrode and they won’t go green. If anything the copper will turn dark just like a penny does and it wont hurt a thing.”If they get in contact with another metal then depending on the metal it may corrode.If it is pure(ish) copper then it will go green.http://wiki.answers.com/Q/If_copper_turns_green_from_oxyegen_gas_why_don%27t_pennies_turn_greenMowcius",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188906",
"author": "Addidis",
"timestamp": "2010-10-01T18:54:08",
"content": "Still surprising they failed so well.Honestly if just the headers were messed up thats one thing. But there are so many inconsistencies.When you think about it the most important thing that makes an arduino an arduino (aside from the bootloader) is the headers. This product is aimed at newbies. And yet the one thing that makes it what it is (the headers to attach other things) didnt get a second glance at the shop.This is like a handicapped convention on the third floor with no elevator.Pretty surprising they would allow this to ship.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188914",
"author": "svofski",
"timestamp": "2010-10-01T19:07:04",
"content": "Exactly which of the listed nonproblems affect LED blinking, or anything else done with Arduinos? Does a misaligned via hole really hurt you that much, seriously? Splinters? Hell, better not turn on that soldering iron, someone might get hurt.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188915",
"author": "walt",
"timestamp": "2010-10-01T19:09:19",
"content": "“These boards like all other moderb boards are manufactured with solder mask over bare copper. It is common to have some bare copper somewhere on a board and as long as the copper does not cause a solder bridge it’s a non-issue.”What about the exposed copper on home brew PCB’s which won’t have the solder mask?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188917",
"author": "dreamer.redeemer",
"timestamp": "2010-10-01T19:16:39",
"content": "RE:comments, IMHO if you’re complaining about the package, you’ve failed to see the point. It’s one thing to note the decline in manufacturing quality, it’s quite another to call this a show stopper.A similar complaint in the ’90s may have gone as such:“i can’t see what the big deal is with computers, the cases are all just thin sheet metal with poorly cut sharp edges… and they’re just so… beige”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188925",
"author": "grenadier",
"timestamp": "2010-10-01T19:34:23",
"content": "Picky Picky.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188926",
"author": "mowcius",
"timestamp": "2010-10-01T19:34:39",
"content": "You have to remember that people seemed to want beige back then.Nobody wants crap boards now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188931",
"author": "Dosadi",
"timestamp": "2010-10-01T19:43:58",
"content": "I definitely agree that Arduino’s quality control has always left something to be desired. My Arduino Diecimila arrived with no solder at all on one of the header connections. I thought these things were wave soldered?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188934",
"author": "George",
"timestamp": "2010-10-01T19:50:00",
"content": "@mowcius: It’s not that nobody wants crap boards, just that nobody wants to pay *premium prices* for crap boards. If these were $16 or $18 each, a bunch of cut corners would be justifiable; everyone understands the idea of “built down to a price”.They apparently couldn’t even get the idiosyncratic pin spacing correct, though. That’s just… yeah.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188938",
"author": "Shadyman",
"timestamp": "2010-10-01T20:03:29",
"content": "I got a Freeduino clone of an earlier one, and it is beautiful.. Rounded corners, etc, and it was a kit, so the only person I had to blame for assembly was me :)The board was done quite well, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188946",
"author": "Anton",
"timestamp": "2010-10-01T20:10:53",
"content": "My brand new Uno has all these problems as well.Lots of bare copper, including some places along the edge of a trace where the solder mask was too thin. All the Vias were bare copper and poorly centered.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188951",
"author": "Xb0xguru",
"timestamp": "2010-10-01T20:22:43",
"content": "So wait – are you saying the product is faulty? Does it work as described? Yes? What’s the problem here? So it’s not something you could put in a glass case as an excellent display of good PCB creation, but unless I’m mistaken, code doesn’t really care what the hardware looks like. Maybe take off the geek specs for a second, eh!@redbeard – running your finger along any PCB is an accident waiting to happen. If you do this on a regular basis you’re bound to get a splinter. Maybe the lesson here is don’t do it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188955",
"author": "Addidis",
"timestamp": "2010-10-01T20:32:57",
"content": "@svofskiWell if the headers are messed up that DOES effect plugging in the shields it is made to use right? If you actually read the posts, there are links showing how bad the headers are assembled. Yes most of it is cosmetic. But if they are going to do such a piss poor job of putting on the headers and need to save money or time in FAB then ship it with them unattached. The customer already has to rework the board so why not just save the time and effort all together during fab ,,,Thats right the reason is the arduino is made for nubies . That is why there are headers so the user doesnt need to solder. So assembling the board this poorly defeats the entire purpose of the board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188962",
"author": "mowcius",
"timestamp": "2010-10-01T20:58:27",
"content": "“Thats right the reason is the arduino is made for nubies . That is why there are headers so the user doesnt need to solder. So assembling the board this poorly defeats the entire purpose of the board.”Well at least on the mega, the holes are in the wrong place for the headers so you have to bend them to get shields to fit in…“but unless I’m mistaken, code doesn’t really care what the hardware looks like.”Pretty much the whole point of these boards is to put shields on them so if you can’t even do that as the headers aren’t right, then the code will care cos it can’t connect to that shield you just purchased :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188970",
"author": "Trollicus",
"timestamp": "2010-10-01T21:09:12",
"content": "Wow, all the people attacking arduino’s (not the quality issue the arduino itself)Yes, they need to do some serious quality control. But even though I have never used them myself(I make my own AVR based circuits though) they are a good BEGINNER platform, or for someone who doesn’t have the time/knowledge/tools/skills needed to create their own circuits they allow quick prototypes to be made.I have seen some projects that are way overdo to drop the arduino and move to a custom board, but hey, there is something to be said with sticking with what you know.It’s nice that this product has encouraged many young people to learn about micro-controllers in a simple to use package.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188978",
"author": "fartface",
"timestamp": "2010-10-01T21:26:40",
"content": "looks like the same shoddy quality I have dssen from all other Duino boards.Granted I have only bought 60 of them, far less than the other guys here, they must buy thousands at a time.My experience is they are low grade, and always have been.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188982",
"author": "ClutchDude",
"timestamp": "2010-10-01T21:37:12",
"content": "http://arduino.cc/blog/2010/10/01/one-bad-arduino-doesnt-spoil-the-barrel/Arduino’s response.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188984",
"author": "Tom Hargrave",
"timestamp": "2010-10-01T21:41:50",
"content": "Hey guys, this is a $30.00 controller card not a $1000 laptop and that’s far less than the cost of a nice dinner with your spouse or a friend!For $30 retail they gave to cost about $10 to manufacture and they have to be running thousands at a time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188986",
"author": "Jack",
"timestamp": "2010-10-01T21:46:00",
"content": "The “company” you mean that italian private “non tax paying” organisation running out of some garage?I bet they order every part from china, probably from some blackmarket store too without paying VAT.So what do you expect :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188987",
"author": "osgeld",
"timestamp": "2010-10-01T21:46:19",
"content": "1000$ laptop is bound to have the same issues, heck at my work we get 1000$ boards in that we are expect to snap apart along a line of drill holesstuff happens, if you get a funky board contact your seller or the arduino team, dont go making a big ass stink over it (while including problems and photos of a knock off previous gen board mixed in, the smd pads)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188989",
"author": "Massimo Banzi",
"timestamp": "2010-10-01T21:50:30",
"content": "HelloI’m the co-founder of Arduino.We have written a step by step reply to the content of the original post.If you have received an Arduino board that was not up to par with our usual quality we apologise but that doesn’t represent a general issue with every UNO made.His reseller offered him a replacement board and even a refund. Every reseller is bound to a contract where they replace faulty boards immediately and no questions asked. please talk to your resellers or directly to us.here is our responsehttp://bit.ly/bY36KQ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188995",
"author": "Reed Keroce",
"timestamp": "2010-10-01T22:13:22",
"content": "http://arduino.cc/blog/2010/10/01/one-bad-arduino-doesnt-spoil-the-barrel/Read!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188996",
"author": "RadBrad",
"timestamp": "2010-10-01T22:13:54",
"content": "Call me a heretic, but why not just drop an actual AVR on a breadboard and code in real C or assembly? There will be no errors to deal with that way beyond those you make yourself in code and wiring!Ok, my hands are up now… fire away!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188999",
"author": "Joby Taffey",
"timestamp": "2010-10-01T22:27:56",
"content": "Latest “unogate” news:http://arduino.cc/blog/2010/10/01/one-bad-arduino-doesnt-spoil-the-barrel/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189002",
"author": "biozz",
"timestamp": "2010-10-01T22:37:10",
"content": "@RadBradthe point of an arduino is quick fast and simple prototyping with limited or no external hardware",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.243086
|
||
https://hackaday.com/2010/10/01/youre-stealing-it-wrong-a-speech-by-jason-scott/
|
You’re Stealing It Wrong: A Speech By Jason Scott
|
Caleb Kraft
|
[
"Security Hacks"
] |
[
"defcon",
"piracy",
"warez"
] |
[Jason Scott], data historian extraordinaire gave
this fantastic speech at Defcon 18 about the history of inter-pirate piracy
. At an hour long, it is an enthralling journey through computer history, especially pertaining to piracy. Take a seat, no matter how much you know about security and piracy, you are likely to learn a few things. We find the lesser discussed issues like pirates stealing other pirates work interesting, as well as the part where pirates have to crack really boring software to have a release when there’s nothing better out there. Also worth noting, according to [Jason], the demoscene evolved from the little opening sequences from cracks. There are just too many interesting aspects to note here, even some porn related stories during the BBS days.
This is a great lesson from someone who is both knowledgeable and entertaining. [Jason] teaches this stuff without ever sounding stuffy, boring, or overly technical. Catch the video after the break.
[vimeo =http://vimeo.com/15400820]
| 22
| 22
|
[
{
"comment_id": "188789",
"author": "draeath",
"timestamp": "2010-10-01T15:31:34",
"content": "No transcript? I’d rather read than watch a presentation on vimeo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188790",
"author": "MRC",
"timestamp": "2010-10-01T15:32:32",
"content": "got any other links to defcon18 talks? they haven’t gone up on the main site yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188804",
"author": "anonymous",
"timestamp": "2010-10-01T16:01:07",
"content": "I remember meeting this guy at Rubicon, what a guy!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188821",
"author": "homb",
"timestamp": "2010-10-01T16:31:57",
"content": "it starts a bit slow and they didn’t give him much warning that his time was up, so a lot of the interesting stuff got skimmed over. it was still quite entertaining though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188830",
"author": "porchmonkey",
"timestamp": "2010-10-01T16:52:51",
"content": "where would i get conference recordings?is there a archive like for CCC recordings?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188836",
"author": "James",
"timestamp": "2010-10-01T17:03:39",
"content": "Yet another great talk that I couldn’t attend because it was too crowded. DC19 at the Riv! Oh, wait, it was canceled.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188840",
"author": "BLuRry",
"timestamp": "2010-10-01T17:06:42",
"content": "I have to say I like it for the fact the cover image (left most pic) is from an Apple ][ warez screen that I recognize. Wow, that’s scary.(feels old now)][ Infinitum!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188847",
"author": "Derek",
"timestamp": "2010-10-01T17:15:57",
"content": "That Was Awesome~!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188963",
"author": "m!nus",
"timestamp": "2010-10-01T20:58:42",
"content": "That was really interesting. Is there more stuff (videos) like this where you can learn about the past i was born too late for?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189004",
"author": "zypher",
"timestamp": "2010-10-01T22:44:02",
"content": "@DerekAgreed, this video made my week.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189012",
"author": "Ian Tester",
"timestamp": "2010-10-01T23:33:12",
"content": "“Also worth noting, according to [Jason], the demoscene evolved from the little opening sequences from cracks.”Funny, that’s what Wikipedia says as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189086",
"author": "shazzner",
"timestamp": "2010-10-02T03:55:24",
"content": "NSFW, just a heads up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189169",
"author": "sarsface",
"timestamp": "2010-10-02T08:00:35",
"content": "That was way more interesting than it had any right to be. Downloadin the BBS Documentary now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189172",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-02T08:08:33",
"content": "UNBELIEVABLE! I still have a copy of that file BREE_MK2.JPG; it was one of a series of about six, but Rusty n Edie’s was friggin’ huge back in the day and IIRC they were raided and brought down the hard way…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189173",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-02T08:08:54",
"content": "*had* a copy anyway",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189181",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-02T08:44:53",
"content": "@minus: just ask us. I’m only 30 and I remember being in the scene starting just after the apple II crowd and on into the 9600+ baud bbs scene. I was a paid member of a 14.4kb bbs and remember having connection issues when they switched to 28.8k non-standardized modems.at the time, piracy was rampant. all you had to do was copy it. but the big difference between then and now was transfer rates limited piracy in most cases to physically transporting a copy on disk to or from the people you were sharing with. so warez spread differently and in a much more local setting, in spite of the mega-bbs scene blowing up. and just after that the universities were starting to get high speed ethernet; but no meaningful copy protection was instituted on software and mp3s were just becoming a reality: when I went off to cal in 1998, plugging into the campus network and browsing windows shares (and sometimes just typing in IP addresses you expected nearby on campus) produced gold mine after gold mine of high-speed accessible shares. people were uploading and downloading like never before and suddenly after about two years of this the publishers started recognizing they had a problem that was impacting their money supply. they freaked and DRM was hastily born. microsoft went about it with cd keys which were not validated online (not EVERYONE was connected, remember) but which were also short enough to accidentally memorize just because you had to reinstall every once in a while. at the same time CD-R became affordable for the majority, USB storage was still a dream (i used a 40mb flash drive for my bbs on a 486dx2/66 overclocked to 80mhz and with 32 megs of ram. the flash drive cost $330 and connected internally via IDE like a 3.5″ hard disk)…they were crazy times indeed. tagging mp3s hadn’t really happened yet so everyone who cared meticulously organized their collections and everyone on campus when i was 18 had all their media directories shared. there was a ton of music, lots of software, some movies, and a little porn on campus and it was almost the same anywhere else.just before i went to cal, AOL was becoming a smash hit among non-computer-savvy folks and IRC was growing among people with growing computer fluency. there were conversations like “wtf do you use EFnet when there’s DALnet?” then came khaled mardam-bey with mIRC and it basically turned IRC into AOL version 2.for a while in 1996 my BBS employed an ASCII artist whose contract services revitalized the menu system and made it really, really nice to look at. he did the work for free because he got notoriety and apparently the frequency of visitors to my bbs bought him an actual career as an artist.it was crazy. you should have been there. but then i wonder what would happen if i were 40 instead of 30? how would i view the whole ‘history-of-the-scene’ thing differently?right around that time good video codecs hadn’t been born yet and you could buy crummy movies on two VCDs at officemax for half the cost of regular movies.i don’t remember my windows 95 cd key, but at the time i could recite several.it was also the first time you could scan and print things with remarkable enough fidelity to be recognized as the real thing to unaware viewers.in 1997 and 1998 this was taken advantage of freely by many people to print everything from cd covers to currency. suddenly those in the know of computers had a huge tactical advantage versus lay people in lots of real-life situations.#dxm hadn’t invented phrases like “i r 1 2 ett dxm” and “hair makes me a robot” yet.a guy called cr0bar made a ‘bastardization of the matrix’ which was funny as hell because of this whole ‘in order to truly control your destiny in this world, you have to be +fjhxmnopBMNO’ [sic] line. seriously i forget the eggdrop flags that made you botnet master. we started spelling “word” as “werd” and when that got boring we started spelling it “w3rd” and when it got too big it sorta tanked and then we all started seeing that as lame and went back to proper typing.then a whole new crop of kids shot up, pacific bell pure digital pcs was bought up by a company that supported SMS and those new kids never did learn how to spell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189408",
"author": "dext3r",
"timestamp": "2010-10-02T19:27:17",
"content": "this was awesome, great watch. i could have listened for another hour. WOULD WATCH AGAIN, A+++++ SPEAKER.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189410",
"author": "Polaczek",
"timestamp": "2010-10-02T19:28:39",
"content": "@Dan FruzzettiRespect, YO!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189439",
"author": "bilbao bob",
"timestamp": "2010-10-02T20:28:38",
"content": "You are now an honorary old fart.Good luck with that.BTW,> When I went off to cal in 1998, plugging …> suddenly after about two years of this […]> they freaked and DRM was hastily born.I think you may have premature Alzheimer’s, kid. Now that you’re old enough to use the phrase “new crop of kids”, you’ll soon figure out that innovation usually means “suddenly mass marketed” rather than unexpected invention.The pirate “Warez” scene dates back at least to the player piano circa 1900, when pirates would duplicate piano rolls for other piano owners. And before that, people were knocking out bad copies of the bible and other popular media in the mid-1600’s, when pirate editions of popular plays were all the rage.Ever seen that old b&w film where they shoot a rocket into the eye of the moon? It was made by Georges Méliès in 1902, and then pirated by one of Edison’s gang and duplicated en mass to let them sell more edison projectors in the americas.The keys were not a microsoft invention, BTW.DRM has been an issue ever since some idiot figured out how to reliably make magnetic tape and then disks. You know, not counting the paper tape piracy that plagued the micro world back when the poorer hobbyists still used old 20ma loop connections to WW2 vintage teletypes.Bill gate’s “ye all be thieves” letter was written because of the robin-hood approach many of these guys with cassette decks took, which was the same as those before them with tape punches took.He must have forgot how he and his buddy just happened to “acquire” the source for the cross compiler they modified to write code for the 8080. Cause you know, it isn’t stealing if you smuggle it out of the building.Of course, back when Bill worked for MITS, you couldn’t patent software, which might explain why Ed Roberts was so surprised to discover that he had founded and funded Microsoft without getting anything back from the deal.Maybe if Ed’s dad had been a well-connected big-name lawyer, he might have played a bigger role. But time steps past those of us who slumber and smile.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189631",
"author": "Jason Scott",
"timestamp": "2010-10-03T04:27:23",
"content": "I endorse bilbao bob’s comment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190366",
"author": "goldscott",
"timestamp": "2010-10-04T04:25:38",
"content": "Fantastic talk!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190703",
"author": "Sean",
"timestamp": "2010-10-04T16:26:52",
"content": "Excellent presentation!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.408271
|
||
https://hackaday.com/2010/10/01/gameboy-advance-rapid-fire-hack/
|
GameBoy Advance Rapid Fire Hack
|
Greg R. Jacobs
|
[
"handhelds hacks",
"Nintendo Game Boy Hacks"
] |
[
"gameboy",
"gba",
"hack",
"rapid fire"
] |
Ever find yourself in the middle of a Game Boy game and your hand cramps up? Save that sore wrist for something else because now you can
hack the Game Boy Advance to add Rapid Fire for the B button
. [William] has developed a way to do this by creating a simple circuit that generates a square wave on the B button when it is pressed. To do this hack all that was needed was a short shopping list of:
A Couple NAND Gate ICs
2n2222 NPN Transistor
0.1uF ceramic capacitor
A Switch
1M ohm resistor
Some Thin Wire
After that you’re off to the races as [William] documents how he goes about transforming the Game Boy Advance and includes a ton of great pictures and a schematic. This operation ends with [William] placing the switch for Rapid Fire excellence next to the Right Bumper where it is inconspicuous and yet easy enough to access.
Via [
HackedGadgets
]
| 11
| 11
|
[
{
"comment_id": "188755",
"author": "unaB",
"timestamp": "2010-10-01T13:59:33",
"content": "YIKES! That is the gobbiest ugly solder mess Ive seen in a while. Maybe this is better suited for “kludge-a-day”?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188757",
"author": "Daniel",
"timestamp": "2010-10-01T14:16:29",
"content": "seems like “glued” not soldered ;)but nice idea also",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188762",
"author": "Fallen",
"timestamp": "2010-10-01T14:38:59",
"content": "Agreed. Those solder joints need work.“Save that sore wrist for something else” I lolled.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188774",
"author": "nave.notnilc",
"timestamp": "2010-10-01T14:58:42",
"content": "always nice to see more freeform solder jobs :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188793",
"author": "Lars",
"timestamp": "2010-10-01T15:44:57",
"content": "Good to see some very simple electronics hacks from time to time!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188824",
"author": "johannesburgel",
"timestamp": "2010-10-01T16:36:40",
"content": "“A couple NAND ICs”? I only see one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188862",
"author": "Jorge",
"timestamp": "2010-10-01T17:25:37",
"content": "second one is buried under the solder.ZING!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188892",
"author": "nes",
"timestamp": "2010-10-01T18:30:40",
"content": "There was a similar thread on rec.games.vectrex just recently. Here’s a circuit with just two transistors which might work on the GBA with some tweaks to the values:http://groups.google.com/group/rec.games.vectrex/msg/806a33aa9557a19a?dmode=source",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188923",
"author": "Gdogg",
"timestamp": "2010-10-01T19:32:21",
"content": "@johannesburgel He uses a single IC with 3 NAND gates",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188980",
"author": "Haku",
"timestamp": "2010-10-01T21:35:32",
"content": "I remember taking the small autofire circuit from a joystick and putting it in my Amiga mouse, with an on/off switch, so I could have autofire on Star Wars.Ahh those were the days…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190216",
"author": "cde",
"timestamp": "2010-10-03T22:30:57",
"content": "A better way would be a small micro controller, have it monitor the backlight button. If it senses a button pressed while holding the backlight button down, it triggers auto-fire on that button. Same method for turning it off. Should only take the same number of parts and maybe a 3/4 extra wires.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.156069
|
||
https://hackaday.com/2010/10/01/mac-tablet-keeps-the-look-of-the-donor-macbook/
|
Mac Tablet Keeps The Look Of The Donor-Macbook
|
Mike Szczys
|
[
"Mac Hacks"
] |
[
"core2duo",
"macbook",
"tablet",
"touchscreen"
] |
[Enigma-penguin] built
a tablet computer out of a Core2Duo Macbook
circa 2007. The battery exploded, damaging the case and a few components inside. But there was hope for a new life as a tablet computer. He removed the screen and tested to make sure the computer would still function without it by using the video out port.
Putting the whole thing back together as a tablet proved to have some headaches. He worked through problems caused by the addition of a touchscreen between the LCD and the bezel and made the connections work with the screen flipped. The finished product looks so good because the bezel has not been turned around
like on other tablet builds
. Instead, a viewing window was cut in what would have been the case behind the screen.
There’s a little more to be done yet. The black USB cable seen above is the connector for the touchscreen which he plans to internalize. The magnetic sleep sensor has been relocated to the headphone jack. Inserting a plug (no cord necessary) puts it to sleep for transport. There’s also an on screen keyboard and the ability to change the screen orientation from landscape to portrait. After the break we’ve embedded one of [Enigma-penguin’s] demonstrations.
[youtube=http://www.youtube.com/watch?v=QZGskdaJww0]
[Thanks Stephen via
Neowin
and
their Forums
]
| 15
| 15
|
[
{
"comment_id": "188738",
"author": "Grovenstien",
"timestamp": "2010-10-01T13:16:18",
"content": "once again proving that OSx works reasonably well when using ones finger as an input device. Im still trying to figure out how to make OSx recognise two or more cursors, thus allowing multitouch to run nativiley on OSx. Answers on a postcard!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188741",
"author": "Mr Hacker",
"timestamp": "2010-10-01T13:20:52",
"content": "and why the is it always featured here when someone does a hack on apple products and rarely featured when its done on other stuff (like pcs) , they are same , the only difference is the os , that doesn’t mean that the apple products are locked with the most powerful glue on earth …….Edit:why the cant you edit comments here",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188754",
"author": "ak77",
"timestamp": "2010-10-01T13:46:38",
"content": "@Mr HackerSo wait.. You rarely see non-Apple hacks on HaD?Your hyperbole is showing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188772",
"author": "Mr Hacker",
"timestamp": "2010-10-01T14:52:09",
"content": "@ak77ok,i agree , but why is it given more priority when a hack is done to a computer running mac rather than other oses",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188784",
"author": "amishx64",
"timestamp": "2010-10-01T15:24:43",
"content": "I don’t care what OS he used. Afterall, its only software, and can be changed / upgraded.I think the most important and well produced part of this project was the hardware itself. There was obviously a lot of thought put into it.I think that a custom case could be in order as a next step. Prob a CNC job.How would this hold up screen-scratch wise?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188787",
"author": "Bergo",
"timestamp": "2010-10-01T15:30:13",
"content": "@Mr. Hackerdid you you ever noticed the giant pile of netbook touchscreen hacks?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188843",
"author": "uzerzero",
"timestamp": "2010-10-01T17:12:25",
"content": "For the record, Axiotron has been producing the “Modbook” since the release of the original polycarbonate Macbooks. Essentially a hi-res touchscreen, rotatable, on top of the original Macbook case. It’s expensive, but slick and very useful for artists. I’ve always wanted one but been hindered by the price.Two thumbs up to Enigma-Penguin for implementing a touchscreen by hand and making it look professional. Maybe one of these days I’ll set about duplicating his work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188948",
"author": "Addidis",
"timestamp": "2010-10-01T20:17:22",
"content": "Great post mike.I am curious and some what fearful What caused the battery to “explode” and was this a high energy explosion, or was it just a typical battery expanding due to age .Great looking result. That usb cable should be no problem to handle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188961",
"author": "ss",
"timestamp": "2010-10-01T20:55:44",
"content": "Mac hacks more prominent than PC hacks? Really? Have a look to the right of the article:macs hacks (106)pcs hacks (275)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189011",
"author": "trebu",
"timestamp": "2010-10-01T23:31:10",
"content": "I am currently running a power book g4 laptop with the screen removed. works great! the few issues I had were relocating the bluetooth and wifi connectors, done creatively with zip ties, and the blind install. not recommended. at all. ever.The install dvd extends by default with no way to mirror, sousing an external display does not help much (at all).I ended up plugging back in the display(the back light was just bad) and using a flashlight.I believe most if not all apple laptops can and will run with the main screen removed, Just hope to god you don’t have to reinstall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189126",
"author": "therian",
"timestamp": "2010-10-02T06:12:56",
"content": "“Mac hacks more prominent than PC hacks? Really? Have a look to the right of the article:macs hacks (106)pcs hacks (275)”so hacks: 1mac/3pc but dont forget that there is 100 pc’s for every mac, so yes there is a bias",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189224",
"author": "Mr Hacker",
"timestamp": "2010-10-02T12:03:08",
"content": "ok , there is more pc hacks i agree , but why are they differentiated by mac hacks and pc hacks , i have even heard of people buying a mac just to say they have a mac , people, its just a software , there is no need to differentiate it from the pcand keep the competition to us websites , even countries richer than the us (yes there are) has only 2 retailers in a country and they sell those **** stuff for double the pricesigned – a frustrated guy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189226",
"author": "Mr Hacker",
"timestamp": "2010-10-02T12:07:10",
"content": "by us , i meant united states, the c***y disqus has a better system than wordpress’s built in comment system",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189834",
"author": "Enigma-Penguin",
"timestamp": "2010-10-03T11:57:09",
"content": "@Addidis, it was a high energy explosion, the battery was just over 2 years old when it occurred. The explosion destroyed part of the keyboard, and apparently shook the dvd drive enough that it never worked again after.Overall guys this hack cost me $50 Aud (for the screen) and a little time. If you have an old laptop mac, a dremmel and some time I highly suggest it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190745",
"author": "LeftClicker",
"timestamp": "2010-10-04T17:58:21",
"content": "@Enigma-Penguin: What company did you buy the touchscreen from? I’d be interested in attempting this on by late 2005 iBook G4.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.292351
|
||
https://hackaday.com/2010/09/30/launchpad-takes-ultra-low-power-to-the-extreme/
|
Launchpad Takes Ultra Low Power To The Extreme
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"chip",
"count",
"display",
"launchpad",
"lcd",
"low power",
"msp430",
"raw"
] |
We’ve all known the MSP430s under the Launchpad are designed to be low power, but who wants to bet
how long the chip can last
on only 20F worth of capacitors? A couple of hours? A day at max? [Kenneth Finnegan] setup a MSP430 with supercaps to find out. To make sure the chip is actually running, [Kenneth] programmed it to count from 0 to 9 over a period of 10 seconds, and then reset. To get it ultra low power, the chip is in sleep mode most of the time, and a raw low current LCD is used to display the output. While [Kenneth] simply checks the chip every few hours to see if it’s still counting, a setup much like the
Flash Destroyer
, tracking a clock and then storing the current value would get a more exact time of death. Either way, it’s been over 3 weeks…and still counting. Video after the rift.
[youtube
http://www.youtube.com/watch?v=xbjpQmjwMyU&feature=player_embedded%5D
| 62
| 50
|
[
{
"comment_id": "188397",
"author": "johannesburgel",
"timestamp": "2010-09-30T22:04:29",
"content": "I think we will see more of these circuits soon – runs for weeks, and can be “reloaded” in seconds.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188399",
"author": "cgmark",
"timestamp": "2010-09-30T22:10:03",
"content": "I guess measuring the current usage vs power capacity of capacitors was too easy so he decided to do it the hard way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188401",
"author": "Fallen",
"timestamp": "2010-09-30T22:16:48",
"content": "20 Farads?That’s a crapload of capacitance. At work they used 5F supercaps instead of coin cells for backup power. No wonder this thing is still going.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188413",
"author": "tim",
"timestamp": "2010-09-30T22:46:30",
"content": "looking for 3000F so it can run 12 years ?here it ishttp://www.maxwell.com/ultracapacitors/products/large-cell/bcap0650.asp",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3057891",
"author": "Hello",
"timestamp": "2016-06-17T13:49:54",
"content": "No it won’t all capacitors have a leakage current",
"parent_id": "188413",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188415",
"author": "Spazed",
"timestamp": "2010-09-30T22:48:24",
"content": "1 Farad is 1 amp-second. That isn’t a whole lot of power really the average AA battery is around 1000 mAh. 3,600,000 times more than a 1 Farad capacitor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188421",
"author": "bilbao bob",
"timestamp": "2010-09-30T22:59:28",
"content": "Rail guns often use ni-cads and various other battery chemistry variants in place of capacitors.When you need a bunch of current right NOW, big caps just don’t have the right discharge curves.Nothing compares with flash-over in a big steel cage after something goes wrong – KaPOW!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188422",
"author": "jon",
"timestamp": "2010-09-30T23:00:32",
"content": "Your math is wrong. If one farad is one amp-second, a 1000mah battery is 60*60=3600 times that capacity (at the same voltage).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188430",
"author": "Taylor Alexander",
"timestamp": "2010-09-30T23:17:04",
"content": "Hah, “Only 20F…”That’s a lot of capacitance there buddy!50 years ago, my high school science teacher was told that a 1F capacitor would have to be the size of a football field!Of course, that’s surface area, which you can clearly still cram into something small. But its a funny quote considering how common these super and ultracapacitors have become!Still, 20F is a lot by pretty much anyone’s standards.-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188431",
"author": "Seth",
"timestamp": "2010-09-30T23:17:17",
"content": "Maybe I should rig some coin caps to my 01 ibza, batteries are so expensive",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188438",
"author": "rcx",
"timestamp": "2010-09-30T23:35:45",
"content": "farads aren’t amp-seconds, that’s coulombs. Farads are coulombs per volt. Q = It and C = Q/V. super caps have a very high capacitance but a low maximum voltage, so they don’t store ex much energy as it would initially appear, especially since energy stores is proportional to the square of the voltage across the cap",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188441",
"author": "Ken",
"timestamp": "2010-09-30T23:37:47",
"content": "I wonder if he is using the power down mode and a wake up timer, or if he is just using a delay routine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188442",
"author": "Taylor Alexander",
"timestamp": "2010-09-30T23:39:06",
"content": "@KenIt says so right up there:“To get it ultra low power, the chip is in sleep mode most of the time…”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188443",
"author": "rcx",
"timestamp": "2010-09-30T23:41:00",
"content": "specifically, 20F at 2.7V will store 20 x 2.7^2 = 145.8 coulombs. a 1000 mAh battery will store 1000 x10^-3 x 3600 = 3600 coulombs, or 25 times as much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188448",
"author": "Kenneth Finnegan",
"timestamp": "2010-10-01T00:04:54",
"content": "@cgmark: I lack any kind of measuring device to measure current accurately down to fractions of microamps, and there are more variables than that: the current consumption is very spiky (the controller runs in 32Hz bursts, so what are you actually measuring on an amp meter?), and theres the self-discharge of the caps, and how low the controller can *really* run below the rated 1.8V, etc etc.So I decided that just running it would give a more meaningful result than a single current measurement.Others have already made the point that supercaps are ridiculously huge capacitors, but still orders of magnitude smaller than chemical batteries…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188459",
"author": "r_d",
"timestamp": "2010-10-01T01:05:42",
"content": "20F is a whole lot. Pretty much anything MOS should run forever on that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188491",
"author": "Addidis",
"timestamp": "2010-10-01T02:27:34",
"content": "Also add to the comments that Microchips product line boasts the lowest sleep current industry wide. Well that was the case when I last researched it. (about a month ago)maybe its just me , but lately the quantity of posts is high, but its stuff like jamming a hub in a mouse.Personally I wouldnt call that a hack . But the idea had potential no less to become a hack .To be a hack I would say you need to add functionality to a device , not add more devices.This is one of my favorite sites to page threw, Just some constructive criticism.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188495",
"author": "Drone",
"timestamp": "2010-10-01T02:34:41",
"content": "How long does it take for the super-cap to self discharge?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188503",
"author": "cgmark",
"timestamp": "2010-10-01T02:51:30",
"content": "the problem with just running it without measuring current and voltage during the process is all that it tells you is what that exact code and circuit will do. It doesn’t tell you how that will apply to other circuits powered by the same capacitors. Unless you know what it is consuming at the various times there is nothing to use for comparison.For measuring something that powers on and off you take a period of time for the measurement and multiply it. Measure what it uses for 1,5,10 seconds and use that to figure out the usage for longer periods.If you don’t have meters that can measure down to microamps then you can use an opamp to make a current to voltage converter. They can measure into the picoamps range before it gets difficult. Just an opamp and a few resistors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188504",
"author": "grenadier",
"timestamp": "2010-10-01T02:53:50",
"content": "@RCXThey do store a lot of energy when it comes to caps; a 5v 10F cap stores 125joules.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188508",
"author": "Jonathan",
"timestamp": "2010-10-01T03:06:30",
"content": "I thought this was pretty cool and can be turned into something useful quite easily. There sure are a lot of grumpy people reading this website. If you don’t like it then don’t comment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188522",
"author": "jaspel",
"timestamp": "2010-10-01T03:43:27",
"content": "driving e-ink its about 4 years in smd at 160mha",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188523",
"author": "jaspel",
"timestamp": "2010-10-01T03:48:33",
"content": "sorry mah not mha",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188524",
"author": "riobario",
"timestamp": "2010-10-01T03:50:32",
"content": "@johannesburgel“…and can be “reloaded” in seconds.”actually (fully) charging these caps would take a really really long time…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188577",
"author": "Avenger 2.0",
"timestamp": "2010-10-01T05:28:39",
"content": "He should have compared different microcontrollers. That would have been fun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188586",
"author": "hackman",
"timestamp": "2010-10-01T05:42:26",
"content": "i put rechargeable AAs in a wireless mouse to replace the dead disposables in it. Can i has artical?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188591",
"author": "knox",
"timestamp": "2010-10-01T06:03:43",
"content": "These guys have pretty big caps.http://www.goldmine-elec.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188597",
"author": "Torque",
"timestamp": "2010-10-01T06:31:14",
"content": "@JaspelE-ink / e-paper was my first thought too. Funny that my copy of esquire died already, thats the problem with professionals “this is how it’s done”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188599",
"author": "grenadier",
"timestamp": "2010-10-01T06:33:19",
"content": "@ knoxAt 10.9kJ those are indeed big capacitors!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188601",
"author": "grenadier",
"timestamp": "2010-10-01T06:35:52",
"content": "Also, all you people are forgetting super caps are very leaky; typically around 5mA. You need to factor that in your time estimates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188616",
"author": "Addidis",
"timestamp": "2010-10-01T07:26:56",
"content": "Still think its comical so much testing and todoo over this when its not even the best out there. I would be curious to see one of our math wizards do a comparison between the TI chips here and a Microchip XLP. Obviously Im referring to doing the math for both not waiting 3 weeks for the answers.I suppose the point of this is to benchmark the incredibly well priced launchpad. But still if people are awed by the results it is worth noting that low power is one of Microchips (many) strong points.So any math wizards wanna break it down?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188619",
"author": "Addidis",
"timestamp": "2010-10-01T07:32:54",
"content": "ok so it wont let me post the link directly to microchips comparison chart comparing PIC24 and MSP430.Goto microchip dot com , under applications and markets click on XLP .I dont think there really is much comparison. But by all means check the graph out your self ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188621",
"author": "RUok",
"timestamp": "2010-10-01T07:36:28",
"content": "I’d love to see the same thing done with an ATMega328 and compare!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188627",
"author": "smoker_dave",
"timestamp": "2010-10-01T08:01:53",
"content": "Q = C * VQ = I * TWhereC = 20FV = 5VQ = 100CWith discharge current say 1uA:T = 100C / 1uA = 100,000,000 secondsT(seconds) / 60 / 60 / 24 / 7 = 165 weeks to discharge to 68% of max capacity.At current draw 100uA the value is 11 weeks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188628",
"author": "WestfW",
"timestamp": "2010-10-01T08:05:08",
"content": "Actually, I think that specsmanship on power consumption of thing has gotten so complex that running the exact target application on real hardware, for a capacitor charged to a known point, is about the only way to really tell how things are going to work out. C values of far less than 20F are likely to be more useful, though!The microchip graph claiming to compare “instruction set efficiency” by counting the percentage of instructions that execute “in a single cycle” was particularly laughable. Especially since it included PIC16 and PIC18 families that don’t actually have ANY “single cycle” instructions (unless you’re willing to allow that a cycle is 4 clocks…) I like PICs, but the MSP430 instruction set blows the 8bit PICs out of the water…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188634",
"author": "nes",
"timestamp": "2010-10-01T08:19:43",
"content": "TI have just announced a new MSP430 which will run all the way down to 0.9V. I bet that would have more of an effect on the result here than sleep mode current.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188646",
"author": "smoker_dave",
"timestamp": "2010-10-01T09:15:29",
"content": "At 0.9V VCC, you are going to be badly effected by EMI. I think if someone sneezes close to your product it will fall over.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188647",
"author": "Alan",
"timestamp": "2010-10-01T09:23:47",
"content": "If a Vref could be found it would have been fun to use the ADC to show the current supply voltage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188689",
"author": "Rollyn01",
"timestamp": "2010-10-01T11:29:20",
"content": "@smoker_daveThanks for making my Pepsi squirt through my nose. lolAlso, IIRC, there’s a way to modify the clock cycle to reduce the effect of EMI. Forgot where I saw it though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188701",
"author": "rallen71366",
"timestamp": "2010-10-01T11:48:17",
"content": "This is pretty amazing, but a rock doesn’t use much power either. I would think a real test would be to actually have it doing something a little more complex than incrementing a register, like running a multifaceted benchmark program, and monitor a heartbeat pulse. Then you start getting an idea of instructions per watt. Use something like the old “self-winding watch” mechanisms to generate current, and you’ve a great portable device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188709",
"author": "smoker_dave",
"timestamp": "2010-10-01T12:03:44",
"content": "Rallen, I would not trust this kind of technology with a critical function like heartbeat monitoring. However for something like a home automation sensor / actuator which simply turns an IO pin on or off once every so often I feel this is a good simulation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188736",
"author": "rallen71366",
"timestamp": "2010-10-01T13:14:27",
"content": "@smoker_dave – I didn’t mean “use it to monitor human heart activity”. :) I meant, “have the device send out a regular pulse that resets a watchdog timer, as a function of its normal operation”. That’s a heartbeat pulse. Informal slang. It can be fun. Try it, sometime. Confuse the hell out of your co-workers. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188773",
"author": "brennanthl",
"timestamp": "2010-10-01T14:57:26",
"content": "Microchip blows the rest of the industry away as far as low-power micros are concerned. They are the best.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188779",
"author": "russo",
"timestamp": "2010-10-01T15:13:16",
"content": "That and a clock divided by 4 lol.And a lot os spit glue logic all over the pic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188805",
"author": "DB",
"timestamp": "2010-10-01T16:02:12",
"content": "I do a lot of MSP430 work at uni, and the correct way to measure current in a setup like this is to take the integral of the current. In his case it should be an easy step function, so effectively:(i_sleep * %_sleeping) + (current_wake * %_awake) = i_total. Unfortunately the current draw is a function of Vcc in CMOS tech, so it varies a bit with the current level of the caps and stuff, but it should be close enough for a first order approximation. The MSP430s are fairly power efficient if you use the low power modes as Ken did, and with 20F backing it, I wouldn’t be surprised it runs for a very very long time.Hell, I bet the caps are self-discharging more current than the MSP430+LCD is drawing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188898",
"author": "jackalek",
"timestamp": "2010-10-01T18:40:38",
"content": "PIC are not the lowest on power consumption…deep sleep mode is useless, it wont save ram, registers etc. pic can be woken up just by external interrupt – in fact it is reset and start from scratch. In TI’s micros you can go down in sleep mode but you can woke it up by software side (counter), the same (by functionality) mode in PIC’s is taking more power. The Microchip youtube demo video is a scam, it shows conditions newer existing in real life!!.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188928",
"author": "nes",
"timestamp": "2010-10-01T19:37:07",
"content": "Ωsmoker_dave: Don’t see why the rail voltage should have any bearing on susceptibility to interference. Care to clarify that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188947",
"author": "knowledge",
"timestamp": "2010-10-01T20:15:08",
"content": "Alright, first I’m no math wizard really…(couldn’t get through calculus…)I just looked at datasheets.I don’t know the MSP430, but his datasheet sayWith internal oscillator @1Mhz = from .2ma – .3ma(change with / voltage) so let’s guess .25maYeah, there the lcd module that would be easyTo measure since consumption is steady.Let’s say it take 100 clock to get a task done(assuming a more complexe task is done)= ~100us @ 1Mhz, which give 100us/1s = 0.01% duty cycle= 0.01 * .25mA = 2,5uA averageor ((2.7+1.8)/2)V * 2,5uA= 5.6uWattsCapacitor leakage :We dont what it is, it seem to change wildly fromOne 10F from another :Nichicon = .5 * C at 2.7volt = .5 * 10 = 5mA…They say it’s after half an hour.Maxwell = 0,03ma after 72 hoursSo duuhh it must be reduced when voltage drop…Here you also have to take into account ESR(Equivalent Serial Resistor) so it’s like a resistor .Nichicon = .3 ohmMaxwell = .075 ohmWe take that in account in the capacitorDischarge formula ( as R)Q = C* V * (1-e^(-t/(RC) ) )Where Q= is the charge Amp/s?C = 10FV = 2.7 at start, 0 or with our mcu 1.7Ve = natural number = ~ 2.71828…t = time in secondR= in this case, ESR + mcu load (V=RI)Then you need to consider the leakage of both cap.So it’s not impossible, it took like 10min to get these info,Take 20 more and you might have some approximationI did my part.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188967",
"author": "zeropointmodule",
"timestamp": "2010-10-01T21:02:22",
"content": "@Torque i am working on a way to reuse these panels for active camouflage.. only problem is the number required.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188969",
"author": "zeropointmodule",
"timestamp": "2010-10-01T21:05:56",
"content": "also another useful trick i came up with is reducing the external clock below 32 kHz, it seems that all that is required is a simple “equivalent crystal” composed of resistors inductors and capacitors with a resonant frequency in the low audio range (say 1kHz) as the current draw scales linearly with reducing frequency.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188988",
"author": "jaspel",
"timestamp": "2010-10-01T21:48:58",
"content": "right now ti is more efficient than micro but epson’s soon to be released chip will have some serious benefits such as rfid, io, and charge consumption.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.498927
|
||
https://hackaday.com/2010/09/30/c-sharp-development-101-part-1-hello-world/
|
C Sharp Development 101 – Part 1: Hello World
|
Greg R. Jacobs
|
[
"News",
"Software Development"
] |
[
"c sharp",
"c++",
"programming",
"tutorial"
] |
In this tutorial we are going to get up close with the Visual Studio 2010 environment. We will learn how to make a console application as well as a form to display our hello world applications. This will give us an opportunity to view 2 types of solutions of the many available in Visual Studio. We will start making the console application first then progress to the forms application.
First we must understand the development environment we are going to use. On the far left side is the toolbox panel. This panel gives us access to a lot of controls that can be used by the Windows Forms. Next is the Solution Explorer that will allow us to navigate the projects and files we are going to create in this Solution. The Properties panel is directly under my Solution Explorer and will allow us to change properties of controls and of the form we will create later on. If any of these are not being displayed they can be retrieved from the View menu at the top under Other Windows. For more information on the Visual Studio IDE visit
MSDN
and search for the specific questions you are having.
Then we need to start the Visual Studio environment and create a new project. To do this we will go to File then navigate to New Project and click it. A dialog box will appear and ask you which project you would like to include in your solution that will be automatically created for your project. We need to use the Console Application. Next we need to replace the box at the bottom where it says
ConsoleApplication1
with
HelloWorldConsole
and then after the project and solution is created press
CTRL-S
to change the name of the solution file to
HelloWorld
in the box under the project name box and press
OK
. This will create a project inside a Solution file. The solution file acts like the glue that binds all projects included in the solution file together. Later on we will discover how this is beneficial for creating projects and making class files that reference DLL’s that we will code.
Once the project is created we are going to edit the program.cs file. After you have open the program.cs we are going to add the text necessary to have the program output “Hello World” to the console. To do this we will need to add the line
Console.Out.WriteLine(“Hello World!”);
inside the static void main curly brackets. After this is complete we can now build and attempt to build our solution. To build the solution we need to press
CTRL + SHIFT + B
and the build process will being. After the build is a success we can now run the Console Application by pressing
CTRL + F5.
This will display a command prompt with “Hello World!”.
Here is the source code for
program.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace HelloWorldConsole
{
class Program
{
static void Main(string[] args)
{
Console.Out.WriteLine("Hello World!");
}
}
}
We can now move on to the windows forms application of Hello World. To do this, we need to go to the solution and
Right Click
, then go to
Add
then click
New Project
. For the project we will name it
HelloWorldForms
. After the project is created we are going to delete the
Form1.cs
and we are going to create a new form by Right Clicking the HelloWorldForms Project, Navigating to
Add
then to
New Item
, and when the dialog box appears we are going to pick
Windows Form
.
The name we are going to use is
main.cs
and press
Add
. We now edit the
program.cs
to change the
Form1
that can be found in the file to
main
. After the Windows Form is created we can start adding in Controls from the Toolbox.
We are going to drag a label and a button onto the form portrayed in the middle of the program. We are going to edit the properties here to make the text inside the label blank and the name of the label
lbHelloWorld
instead of
label1
. After this is done we are going to want to edit the button we dropped onto the form earlier. We will change the name of the button to
btnHelloWorld
and the Text of the button to
Click Me!
. After this is done we are going to want to use an event handler to tie the button and the label together, so when the button is clicked “Hello World!” will appear in the label.
To make an event handler for the button we are going to go to the Properties panel and click the button on the top that looks like a lightning bolt. This will take us to all o the event handlers that this button can handle. We want the Click event handler, this will create the code required to handle a click event in the
main.cs
. Now that the wrapper is there we can code the output to the label when the button is clicked. Inside the curly brackets of “
private void btnHelloWorld_Click
” in
main.cs
input the following line of code to link the two Controls:
lbHelloWorld.Text = “Hello World!”;
This will make the
main.cs
look like this:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace HelloWorldForms
{
public partial class main : Form
{
public main()
{
InitializeComponent();
}
private void btnHelloWorld_Click(object sender, EventArgs e)
{
lbHelloWorld.Text = "Hello World!";
}
}
}
The
program.cs
should look like this:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
namespace HelloWorldForms
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new main());
}
}
}
After all of this is completed we need to run the program by pressing
CTRL + F5
again. The screen that should appear should be something like this:
The screen after the button has been pressed should look like this:
Now that we have completed the next tutorial you should be able to move through the Visual Studio IDE to make multiple projects under one solution, delete files within a project and create new forms and classes, and modify source code within event handlers. The next tutorial will go more in depth with the Visual Studio Toolbox and make a form with controls on it with minimal backbone code, as well as review some of the common files created and what is automatically included for you. For more information on Toolbox Controls you can check out
Microsoft MSDN
article on Toolbox Controls. If you are having any trouble with this project feel free to comment and I will help to try and resolve the issue. Until next tutorial, Happy Hacking!
| 50
| 49
|
[
{
"comment_id": "188371",
"author": "PhilKll",
"timestamp": "2010-09-30T21:21:41",
"content": "Thanks for the tutorial, I was worried, having previous done a few things in C# it would take a few of these before it got to anything new for me, but the explanation of Solutions and Projects, was very helpful, wasn’t quite sure what the difference was.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188392",
"author": "M4CGYV3R",
"timestamp": "2010-09-30T21:51:21",
"content": "Are you covering Windows Forms Designer too or just console-type work?The .NET suite really shines when you get to the rapid prototyping steps, specifically the forms designer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188394",
"author": "dan",
"timestamp": "2010-09-30T21:58:03",
"content": "If you’re covering UI development at all, please introduce people to WPF! WPF and databinding is fantastic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188395",
"author": "Matthew",
"timestamp": "2010-09-30T21:58:35",
"content": "Soo… Remind me what this is doing on Hack A Day exactly?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188429",
"author": "Mike",
"timestamp": "2010-09-30T23:14:37",
"content": "Thank you for posting this! More!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188437",
"author": "coreyl",
"timestamp": "2010-09-30T23:31:24",
"content": "C# is a perfectly serviceable language for IT grunt work. Has fuckall to do with hacking though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188440",
"author": "Merlin051",
"timestamp": "2010-09-30T23:36:01",
"content": "Please can you do a section on Web Services and SOAP calls?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188445",
"author": "Trollicus",
"timestamp": "2010-09-30T23:52:15",
"content": "C#??? sorry, the whole IDEA of the C language and it’s decedents is portability of code. By making a proprietary version of C dependent on the proprietary .NET protocol MS has produced a product that is the antithesis of all Hacking. Why would the hacking community want to develop in a language that locks you in worse than an un-jailbroken Iphone?Please read the MS document called the “halloween letters” where MS discribes their strategy of market dominance through the control of Protocols, then think about .NET and even DirectX and how it’s implemented in Vista and windows 7. where OpenGL calls go through DirectX.(slowing down OpenGL)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188446",
"author": "Matthew",
"timestamp": "2010-09-30T23:53:26",
"content": "Guys! There are plenty of newbie C# tutorials elsewhere, we don’t need them on our favourite hardware hacking websites!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188450",
"author": "PhilKll",
"timestamp": "2010-10-01T00:17:16",
"content": "Never used it for hacking exactly, but I have used it to create a dll that interfaced with a micro and an LCD. Which was a super easy way to create a couple other apps in C# which used the LCD screen. As code behind in ASP.NET, web interfaces should be pretty easy to build also. I also built a conversion program, that goes between ascii,hex,binary,decimal which has come in as a handy tool. Not exactly hacking, but useful in the process.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188453",
"author": "clutchdude",
"timestamp": "2010-10-01T00:40:46",
"content": "Nice but I gotta echo others: what’s this have to do with hacking?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188454",
"author": "Fallen",
"timestamp": "2010-10-01T00:42:31",
"content": "Wouldn’t C be a little more appropriate than C# for a hacking blog? Or Java…something we can port to hardware…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188456",
"author": "Karl",
"timestamp": "2010-10-01T00:49:35",
"content": "@TrollicusC# is an open standard, and it does have portability. These aspects are most prominantly displayed in the Mono Project and Silverlight. The .NET Framework is what is locked down, but it has some very broad application (ASP.NET, Silverlight, Desktop applications, Windows Phone 7).Also, Microsoft open sourced the .NET Micro Framework which is perfect for hacking with C#. The Netduino is a great example of this in practice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188464",
"author": "PhilKll",
"timestamp": "2010-10-01T01:14:14",
"content": "I would agree, I use C or Assembly for micro controller programming, more than I use C# for anything resembling what would be considered HaD material. But there is the C# micro framework, for this purpose, never used it myself, but its out there.http://www.microsoft.com/netmf/default.mspxNot trying to be a fan boy, I’ve just found it useful and easy to use for certain things. I’d love to see a C tutorial for micro controllers too as I’ve recently started using it, and its more complicated to understand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188526",
"author": "Whoever",
"timestamp": "2010-10-01T03:57:22",
"content": "C#??? sorry, the whole IDEA of the C language and it’s decedents is portability of code. By making a proprietary version of C dependent on the proprietary .NET protocol MS has produced a product that IS THE ANTITHESIS OF ALL HACKING.Why would the hacking community want to develop in a language that locks you in worse than an un-jailbroken Iphone?Please read the MS document called the “halloween letters” where MS discribes their strategy of market dominance through the control of Protocols, then think about .NET and even DirectX and how it’s implemented in Vista and windows 7. where OpenGL calls go through DirectX.(slowing down OpenGL)———————————–That comment was worth repeating. (Some emphasis mine).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188531",
"author": "Bluechip",
"timestamp": "2010-10-01T04:08:25",
"content": "I can’t understand the choice of C# for this either. It’s actually quite bizarre that someone would think C# was a better choice for a tutorial series than C/C++.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188534",
"author": "Osgeld",
"timestamp": "2010-10-01T04:12:00",
"content": "“”Guys! There are plenty of newbie C# tutorials elsewhere””yea I know, after 27 days of having extra stuff installed on my machine I went elsewhere to learn how to make it do somethingcant wait for Halloween for number 2 in the series(if you cant tell by the tone in my text… pick up the pace if you insist on doing this please)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188537",
"author": "r_d",
"timestamp": "2010-10-01T04:14:05",
"content": "“Proprietary versiion of C”Someone has clearly never used C. C# has as much to do with C as software “engineering” has to do with engineering. The similarities are only in the names.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188584",
"author": "NP",
"timestamp": "2010-10-01T05:40:27",
"content": "I am sorry to say that this is the worst article I’ve ever read on this site. If Hack a Day continues marketing proprietary technology and encourages (many first-time) programmers to become part of this culture, this website will suffer bad from decreasing visitors.(Still I admit that the language and the IDE provide a practical “click-and-play” methodology that serves well for prototyping and have used it professionally, but I think people can read about this elsewhere.)Hack a Day: listen to your faithful readers or you will make a big mistake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188605",
"author": "Mastro Gippo",
"timestamp": "2010-10-01T06:47:02",
"content": "Stop bitchin, guys… C# is the Arduino of C, and is really usefull to quickly test some code, mostly for the awesome ability to edit code while debugging and moving around the pointer as you please. It makes a lot of tasks completly trivial, and is very easy to learn and use.I’m pretty sure HaD will add a nice tutorial on hacking c# programs with Refractor too, right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188606",
"author": "pRoFlT",
"timestamp": "2010-10-01T06:47:13",
"content": "Damn, everyone is hating today. Apply for a job @ HAD and write the articles you think should be on hear. Stop bitchin!Hacking is not only hardware. You can use C# to create windows hacks. Or even talk to hacked hardware. A good hacker should understand the need for multiple programming languages and skill sets to be a great one man hacker. (cough cough, like me) :)Okay my turn to gripe, I think an Assembly 101 lesson would be great. It can be used on many micro processors to get the speed you need out of them. The Arduino may be easy to use but can you get it to do time sensitive control? digitalwrite does take some time to do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188614",
"author": "edonovan",
"timestamp": "2010-10-01T07:21:09",
"content": "@M4CGYV3R: I have to agree with you. Rapid prototyping is really the only reason I use C#I would like to see this series transition into something more useful (hardware interfacing), instead of repeating the hundreds of other C# tutorials that are around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188624",
"author": "Michael Fever",
"timestamp": "2010-10-01T07:46:37",
"content": "response.write “Hello World”I prefer this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188632",
"author": "Amtal",
"timestamp": "2010-10-01T08:14:01",
"content": "People have to start programming somewhere, and I guess C# is better than C/C++. Beginners that start with those tend to get locked into a certain mindset…The folks screaming in rage have a point though. Python or Perl or Lisp or assembler wouldn’t dilute the spirit of hacking the way this does.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188633",
"author": "Amtal",
"timestamp": "2010-10-01T08:14:28",
"content": "(C# could be justified due to its ease of GUI creation, but this tutorial doesn’t make a GUI so…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188639",
"author": "whilehigh",
"timestamp": "2010-10-01T08:30:27",
"content": "To heck with the debbie-downers.Keep posting tutorials.One needs to learn in order to hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188670",
"author": "Tachikoma",
"timestamp": "2010-10-01T10:41:36",
"content": "If you hate C#, use C++ CLI instead. The latter allows you to use std libraries as well as .NET shit.But whatever..NET is fucking awesome for Windows GUI programming, which I think is essential if you want to make a decent front-end for your Windows projects. Of course, it’s completely useless for portability, which in that case you should be looking at other options anyway.I wish Microsoft would ditch MSIL and its JIT compiler, and compile .NET directly to native code instead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188684",
"author": "j00lz",
"timestamp": "2010-10-01T11:20:21",
"content": "I am currently using a combination of MS VS10/.Net and MonoDevelop/Mono to write a Winforms based application that talks to x0xb0xes via the serial port..Net & C# are great for productivity (I achieve more with less code), and port well (with a few gotchas) to Mac OS X and Linux.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188694",
"author": "Luke",
"timestamp": "2010-10-01T11:36:40",
"content": "C# can be used for embedded development. Scott Hanselman blog has some details on it.http://www.hanselman.com/blog/TheNETMicroFrameworkHardwareForSoftwarePeople.aspxNetDuino (runs tiny CLR)http://www.makershed.com/ProductDetails.asp?ProductCode=MKND01.NET micro frameworkhttp://blogs.msdn.com/b/netmfteam/archive/2010/07/19/netmf-versions-4-1-released-to-web.aspxNot tried it myself, but it is probably worth investigating.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188700",
"author": "Rollyn01",
"timestamp": "2010-10-01T11:46:19",
"content": "@Tachikoma( a fellow GITS fan myself, so I love the name.)It would be ill-advised to give Microsoft any suggestion that a direct compile of .NET to native code( even if it’s through an expansion of commands using .dll files) is a good thing. As far as all things are considered, much of the code itself is very unstable/disruptive to many internet-based protocols. All you’ll end up with is another broken language that allows Microsoft to point the finger at various internet protocols while they tried to showcase a “better” solution to a non-existent problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188711",
"author": "Shield",
"timestamp": "2010-10-01T12:10:58",
"content": "@MathewWe get it, you don’t like tutorial on HAD. The great thing is nobody care what you think.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188712",
"author": "Tachikoma",
"timestamp": "2010-10-01T12:13:26",
"content": "Hmm, I’m not sure if I’m following you… A great portion of .net libs in C# and C++ CLI has nothing to do with networking. I just don’t see how an executable in MSIL or x86 binary has anything to do with standardisation of protocols?My gripe is that the whole thing appears to be a wrapper for WIN32 and MFC APIs, which get called via JIT compiled code. If you are going to develop a standalone windows application, why not compile it to native x86 binary straight away?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "188724",
"author": "Caleb Kraft",
"timestamp": "2010-10-01T12:51:06",
"content": "@everyone asking why:Hacking isn’t just robotics and microcontroller projects. We feel that C# has its place in our tutorial line up.However, we plan on doing much more. C# is what we have available right now. We are currently putting together other tutorial series as well as hiring to expand our capabilities. stay tuned, or even better, contribute!What languages would you like to see in the software development tutorials? Email your suggestions to me caleb@ or the tip line instead of filling this thread please.—-edit—re-reading that, it seems like I’m being short and lecturing… I’m not.in short: great feedback guys, we’re giving you what we can, let us know what else you want!",
"parent_id": "188712",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188727",
"author": "antonye",
"timestamp": "2010-10-01T12:56:05",
"content": "> using System.Collections.Generic;> using System.Linq;If you’re going to write a tutorial, please at least understand the source material – none of these libraries are required for the code you’ve written!It would be a much more valuable exercise to explain some basics as you go, such as what these USING commands are for, and how about some of the additional tools you can use (most for free!) in Visual Studio, such as refactoring programs (JetBrains ReSharper, for example) or even MS’s own FX Cop – all of these can underpin basic, important principles in writing good code and are worthy of using from the start.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188728",
"author": "frozenlazer",
"timestamp": "2010-10-01T13:00:18",
"content": "I’m conflicted on this one. I earn my living developing in C# so this is of little use to me, but I’m all for sharing information.I have to agree with the posts that indicate that are 1000’s of C# starter tutorials.Perhaps instead of writing their own Hello World tutorial, HAD should find some good ones and link to them for the beginning stuff (to get people up to speed), and then write a tutorial on how we can apply .Net to some hardware projects. For example integrating with a microcontroller. Click a GUI button to start/stop some blinkenlights or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188739",
"author": "smoker_dave",
"timestamp": "2010-10-01T13:16:39",
"content": "Guys lets see how the series pans out before getting worked up.In a few tutorials time the author might have us communicating with our AVR projects over USB interface or something similar. This is only beginning and a lot of people don’t know how to do this “simple” stuff already.Personally it is no use to me as I work with this kind of thing daily, but I just chose to not look at the posts (unless it is a slow Friday afternoon!).Give the author a break man!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188747",
"author": "terribledamage",
"timestamp": "2010-10-01T13:32:08",
"content": "I code in C/C++ but not in this object oriented crap. C# is another language what we don’t need. I don’t know it’s story and I don’t care about it either but they probably made it to compete with Java.Good C coders dont use lame shits like boost library either but code their own stuff, especially not C#…Theres no point of it anyway because everyone is developing apps for the web now, java is perfect for that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188786",
"author": "steve",
"timestamp": "2010-10-01T15:25:44",
"content": "WOW, quit crying. If you don’t want to read it, DON’T! It’s the internet, not a newspaper. The article isn’t taking up space that could be used by another story. And C# is great for hacking. I’ve used it to make dozens of little apps to interface with my embedded systems. I don’t care whether or not it’s proprietary, it’s quick and easy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188806",
"author": "jtuttle",
"timestamp": "2010-10-01T16:02:12",
"content": "Good coders use libraries like boost because they know that it will have less bugs than reinventing the wheel and saves time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188818",
"author": "megachad",
"timestamp": "2010-10-01T16:26:20",
"content": "I’m currently in a computer science program in cegep (college) in Canada, and our programming classes are all about C#. I hate it with a passion. I’ve coded in C for quite a long time, more recently in Haskell, but C# makes me wanna cry. Especially when you’re running GNU/Linux. Even more when you have to use XNA on top of that, which has zero compatibility with *nix.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188865",
"author": "darkstar3d",
"timestamp": "2010-10-01T17:28:16",
"content": "Why not take a course without C#? Most universities offer courses with C, C#, Java, and others.Crazy that this is on Hack a Day, even if it can be used in embedded systems.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189176",
"author": "pRoFlT",
"timestamp": "2010-10-02T08:21:51",
"content": "@terribledamage, I just want to say this. I HATE WEB APPS! They are slow and i dont want to have to be on the internet to use them.That said, i’ve seen the new web based game streaming service and its awesome. Maybe in a couple more years when everyone is downloading at 20MBs not 20Mbs then it will be okay. Still you rely on the web service to be up and running to use it.C# over C++. You can write code faster in C#. Garbage collection in C#. Yes c++ is fast but will you notice the difference?not that i use C#, i’ve only played with it. I get paid to use LabView :) and of course RUBY!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189197",
"author": "k4l",
"timestamp": "2010-10-02T09:31:44",
"content": "mhhh due to my professional field i just doing some embedded programming during my bsc and private. in my current company we are developing server inprograms mainly with java an spring… it’s a pain in the ass, if you compare it to c# its just bullshit.yes, c# is not intended to use for embedded hardware. for using in wcf services or desktop applications, its the most modern language and framework. yes you can write guis in c++ or even in asm, but in professional development speed of development is more honored(time is money) than a c program which is 10% percent faster than the c counterpart.dont understand me wrong, I love c(++) but in most cases its not applicable in (very) fast evolving business. Your boss will you fire, if you tell him in the daily scrum “sorry, yesterday ive lost a pointer and this morning i found it…” thats not acceptable in most 08/15 bussiness applications. c# has the big advantage, there is one framework. Have a look at 10 java job offers, you have 20 frameworks. .net doesnt.dont curse everything from m$, the os is thrash, but be open to new things…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189284",
"author": "Tom",
"timestamp": "2010-10-02T16:14:35",
"content": "Perhaps the author should take a look at the “Console.WriteLine” function. There is nothing wrong in writing directly to the “Out” stream, but the Console.WriteLine function provides some nice overloads for parameters/writing things other than strings.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189299",
"author": "r_d",
"timestamp": "2010-10-02T16:58:56",
"content": "@k4l:This is a hacking site. We shouldn’t give a fsck what’s “acceptasble in most business applications”.We care about whats useful to _us_, and what’s different, interesting, and/or clever.Hello world in C# is not useful to me, and it is not different/interesting/clever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189440",
"author": "Ugly American",
"timestamp": "2010-10-02T20:29:08",
"content": "Wow! Now everyone can learn to develop for the new Microsoft Kin phones!Oh wait – they’re already discontinued.Microsoft constantly targets inexperienced programmers and tries to hook them into proprietary backwaters. Consider all the time and effort squandered learning other proprietary MS stuff like Visual InterDev, Visual J++ and Visual Test only to have them discontinued.Consider products like Microsoft Money & Microsoft Office Accounting. Did you use them for your business? They were also discontinued and the file formats are proprietary and undocumented. Of course, the IRS sill holds you liable to provide the information regardless of the MS shrink wrap weasel words. You can lose your business and go to prison because MS won’t support their own old software and won’t release the code.The long list of discontinued proprietary platforms from Microsoft won’t even fit in this space. All the .net products are just another dead end proprietary backwater.JavaScript runs on every major platform, faces the net and scales. .Net does none of those things. .Net is a waste of time – a strategic distraction by MS and hosting such infomercials is a terrible dis-service to your readers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189696",
"author": "Nomad",
"timestamp": "2010-10-03T07:21:45",
"content": "At first i thought, this would be some nice programming 101…but after going over this post i’m starting to doubt that.Here are some things you should consider when posting the next part of this:1. Don’t mess with the tabs! They are there for a reason: C# is one of those languages, which needs those brackets pretty much everywhere. If you mess with the tabbing the IDE does, people who don’t know C#, have to put time into understanding which open bracket belongs to a close bracket. Even i for myself was a bit confused when i saw the first code example here.2. Don’t make simple things complicated! You used Console.Out.WriteLine, and you could easily have used Console.Writeline…for a newbie less code means he has less to learn. And you don’t need to learn much with the simplest things ever.3. Don’t make simple things complicated! (I know it’s the same as 2) Why did you use Ctrl+F5 to run the Program? And why did you build it before that (And used CTRL+SHIFT+B)? There are some nice one-button-shortcuts for this! F6 will build the Project and F5 will run it. Oh and for purposes like learning a new language you don’t need to mess with building, because if you try to run the program with F5 it will be build automagically!PS:To all those “hackers” who are trolling around because they don’t like C#, .NET or whatsoever: Where is your problem? Did someone make you read this article against your will? The goal of such a series of tutorials is to show the people, who can’t do anything, how they can do something. And i wouldn’t even think about starting a tutorial about assembler targeted to people who know nothing about programming. And people who already know a programming language wouldn’t read tutorials, but start programming with the new language and look for the things they need.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190113",
"author": "Ugly American",
"timestamp": "2010-10-03T19:45:39",
"content": "What would your reaction be if you saw a public school teaching kids Esperanto instead of English, Mandarin or Spanish?Is Windows 7 written in C#? No. Word? No. Excel? No. Access? No. MS’s own 360 games? No. Their web pages? No.Why would you push people to invest time in learning a product that the vendor doesn’t even use themselves?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190232",
"author": "Rollyn01",
"timestamp": "2010-10-03T23:14:47",
"content": "@TachikomaSorry, I misunderstood your comment. I see what you’re talking bout… and actually wonder myself why they wouldn’t. Seems like a nice idea, but then, Microsoft is always full of “nice” ideas.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203758",
"author": "RvnKnight",
"timestamp": "2010-10-27T19:44:51",
"content": "*stepping on soapbox*Stop whining about what the language is or is not, about why it was posted, and about what you think hacking is versus what it has been defined as. Hacking is about LEARNING SOMETHING NEW. Almost anything you can do in C/C++, someone else can do in another language or even in hardware. Learning to use what you know to modify, gain access into the inner workings of, or just figure out something is a form of hacking–it’s not limited to just chips and motors. For those who ask why M$ designed C#, look through the history of the language. Yimmy, since you wanna complain about gaps in the tutorial, why not write a new one on C#? Hell, you may even see one by me on Assembly (NASM) or even hacking a bootloader for you OS one of these days.*steps off soapbox*Now who wants pie?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.733707
|
||
https://hackaday.com/2010/09/30/build-a-cutting-laser-from-an-old-pc/
|
Build A Cutting Laser From An Old PC
|
Mike Szczys
|
[
"Laser Hacks"
] |
[
"burn",
"cut",
"diode",
"lens",
"LM317",
"pc"
] |
[Drake Anthony] makes
building a cutting laser from a PC
look easy, and it seems like it actually is. Almost everything you need can be found in a dead desktop unit. The diode is pulled from a DVD writer (16x or faster), with the power supply unit, and heat sinks from the processor and GPU being used as well. You’ll also need a focusing lens (just a few dollars), some thermal glue, an LM317, a resistor, and a pair of protective goggles matching the laser diode’s wavelength.
He fits the diode into the lens, then glues the assembly into a hole drilled through the processor heat sink. A driver is built using the LM317 variable regulator, resistor, power supply, and the GPU heat sink to keep things cool. Check out the video after the break to see the laser cutting tape, burning plastic, and lighting matches.
[youtube=http://www.youtube.com/watch?v=zihZiGUKUS8]
| 75
| 50
|
[
{
"comment_id": "188338",
"author": "Terc",
"timestamp": "2010-09-30T20:23:01",
"content": "Burning hand at 3:29",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1058582",
"author": "Logan",
"timestamp": "2013-09-15T02:31:13",
"content": "wasnt burning hand, laser isnt that strong, it wont cut through metal",
"parent_id": "188338",
"depth": 2,
"replies": [
{
"comment_id": "1058586",
"author": "Logan",
"timestamp": "2013-09-15T02:38:00",
"content": "sheet metal*",
"parent_id": "1058582",
"depth": 3,
"replies": []
},
{
"comment_id": "6743081",
"author": "Whistle Richard",
"timestamp": "2024-03-20T13:46:53",
"content": "Lol… no one ever thought it would cut metal…lol",
"parent_id": "1058582",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "188342",
"author": "xeracy",
"timestamp": "2010-09-30T20:33:52",
"content": "@terc – saw that too.. lit the matches then stuck his hand in front of the beam to show em off.any one fancy a guess as to the laser’s wattage? or what its being over-driven to?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "887249",
"author": "glenmxtq6",
"timestamp": "2012-11-20T08:10:08",
"content": "lol, i agree wth u",
"parent_id": "188342",
"depth": 2,
"replies": []
},
{
"comment_id": "988051",
"author": "Buttin Specter",
"timestamp": "2013-04-02T05:33:58",
"content": "The YouTube description says that it’s 250mW.",
"parent_id": "188342",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188346",
"author": "Pedro",
"timestamp": "2010-09-30T20:41:31",
"content": "That heatsink doesn’t look like it’s a very good fit. He should have under-sized the hole a little and hammered it in there with the thermal glue.A smaller and more efficient power supply might be nice, too, but reuse what you’ve got I suppose!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188354",
"author": "lee",
"timestamp": "2010-09-30T20:52:11",
"content": "What about leaving the fan on the heatsink and wiring it to the PSU, then you’ll be able to use it forever, right? heh heh…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188358",
"author": "lordicewind",
"timestamp": "2010-09-30T20:56:48",
"content": "@xeracy – output power is somewhere between 100 and 200mW, probably. Depends on the speed factor of the burner.Also, I don’t think that you can overdrive it much in continuous mode, especially if you don’t make use of the beam monitoring diode. Most laser diodes don’t like it for thermal reasons. It might be possible if pulsed, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188393",
"author": "Cynyr",
"timestamp": "2010-09-30T21:56:01",
"content": "hmm “cutting” laser might be a bit of a stretch, but still a cool build. I was hoping he was cutting plate steel or Al sheet, but alas, i need to save more pennies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188402",
"author": "Leithoa",
"timestamp": "2010-09-30T22:17:34",
"content": "Just rescue 20 of these and aim them at the same point. You could power a few(4-6) of these off the same PSU without too much trouble.If you get them for free or nearly so it might actually be worth the time and expense spent on making a bulk mounting/aiming bracket.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188404",
"author": "cgmark",
"timestamp": "2010-09-30T22:24:29",
"content": "Serious overkill.The laser diode doesn’t generate enough heat to need that heatsink, a 20W laser doesn’t use one that big. The heatsink it is mounted to inside the drive is big enough. For power the lm317 isn’t needed. Use the 3.3V power from the power supply and feed it through a resistor. Output is around 120mw for dvd burners at 2.4V.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188407",
"author": "sarsface",
"timestamp": "2010-09-30T22:30:48",
"content": "Looks about as powerful as a magnifying glass in the sun.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8160546",
"author": "Dayton Butcher",
"timestamp": "2025-08-11T01:37:17",
"content": "Not all magnifying glasses are the same. I have a plastic lens out of an old projection style big screen tv and let me tell you, that thing ain’t no joke. Focused properly with our precious star and that thing will make bowling ball sized river rocks crack to pieces as it sears the surface into glass.",
"parent_id": "188407",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188408",
"author": "cgmark",
"timestamp": "2010-09-30T22:33:38",
"content": "Power consumption for a laser diode out of a dvd recorder is so low that a typical pc power supply can run 100+ dvd sized diodes without breaking a sweat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188409",
"author": "gmc",
"timestamp": "2010-09-30T22:36:46",
"content": "@Leithoa – would the combined output from multiple lasers still be coherent? – Wouldn’t there be phase-cancelling issues?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6307263",
"author": "Das_Sams",
"timestamp": "2020-12-30T04:11:23",
"content": "If the phase cancels you need to move one of the lasers if you have two or the most cancelling one if there are more about half a wavelength. (n+0.5)λ is fine too.",
"parent_id": "188409",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188417",
"author": "bobdole",
"timestamp": "2010-09-30T22:51:01",
"content": "“Looks about as powerful as a magnifying glass in the sun.”Well that would depend on how big the magnifying glass is. This laser is about a fifth of a watt. If you had a 1m^2 magnifying glass, it would be delivering 1000 watts of power.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188419",
"author": "j",
"timestamp": "2010-09-30T22:56:14",
"content": "I love the chainsaw for extracting the heat sinks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188423",
"author": "Jesse",
"timestamp": "2010-09-30T23:01:59",
"content": "Not that it matters, but I think he’s using the NorthBridge heatsink and not the GPU heatsink",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188436",
"author": "Matt",
"timestamp": "2010-09-30T23:23:44",
"content": "Totally puts his hand in the path at 2:28!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188462",
"author": "tom",
"timestamp": "2010-10-01T01:12:27",
"content": "All of you people are seeming to forget is that he is just using available parts. Still a pretty nice hack for repurposing old parts though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188467",
"author": "Garbz",
"timestamp": "2010-10-01T01:24:27",
"content": "@Jesse, He pulled the northbridge heatsink off too, but it was half the size. Regardless of which I don’t think you’d need much of a heatsink at all. Those Axis modules work rather well dissipating the heat.@cgmark, constant current drivers are important for driving lasers. A DVD laser may be fine, but a bluray laser has an incredibly steep I/V curve. Variances in laser diode construction produce different voltage drops and with resistor values and voltage drops that low you could quite easily use the resistor for one laser diode just fine, and then blow the next, especially when you run the laser at it’s limit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188471",
"author": "Leithoa",
"timestamp": "2010-10-01T01:31:07",
"content": "@GmcI’m going to assume that there would be some amount of interference, but I have no idea how much. Assuming you’re driving them at the same voltage/current and the diode tolerances are pretty tight the light should be fairly monochromatic so there wouldn’t be too much loss due to that but so I guess most of the losses would be due to the mount and orientation of the diodes.They’re using multiple lasers to try and drive fusion reactors so the problem isn’t unsurmountable. It just depends how much math you want to do, it would probably be easier to add a few more diodes to make up for losses.@cgmarkI was basing my guesstimate on an old psu I had lying around which had 12v @ 9.5A through the yellow and the max current a Lm317 can handle 1.6A. So the number of diodes will vary depending on the size of the PSU, and obviously current from the diode.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188493",
"author": "medwardl",
"timestamp": "2010-10-01T02:31:59",
"content": "I’m still waiting for someone to figure out how to build a cheap laser cutter that can cut steel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188509",
"author": "taufeeq elahi",
"timestamp": "2010-10-01T03:10:54",
"content": "i am impressed with this simple, yet very useful hack ( though a bit risky ).Come on people, cutting steel with a 50 cent laser diode is not possible !I would say, it can make a great CNC for cutting things like styrofoam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188510",
"author": "Whatnot",
"timestamp": "2010-10-01T03:11:02",
"content": "So I’m curios, how far away does the coherence last on his setup you think? At what distance could he still burn the tape?I’m trying to catch this roadrunner you see.(And the other commenter was right BtW, the laser-from-a-drive thing is now pretty old and there must be a over a hundred youtubes alone on the subject.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188515",
"author": "Drake Anthony (styropyro)",
"timestamp": "2010-10-01T03:29:45",
"content": "I’m the creator of this video and I’m here to answer some questions.This build gives you around 250mW or so, it’s pushing the laser diode a bit but should still be OK for long periods of time.You can pull off burning tricks from up to 25ft or so with careful focusing.Yeah the heatsink is overkill, but the whole goal is to build a laser from a dead computer.The laser didn’t burn me because it is red, red light gets distributed through the red flesh so it doesn’t cause burns easily. If it were blue or green that would be a different story.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2601714",
"author": "scott",
"timestamp": "2015-06-09T16:39:43",
"content": "would a 10 ohm resistor work with this build?",
"parent_id": "188515",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188519",
"author": "cgmark",
"timestamp": "2010-10-01T03:32:42",
"content": "@GarbzI make driver circuits for 10W and 20W lasers so I’m familiar with what they require. bluray lasers will work fine off resistors alone but if you need current control the cheapest way is a transistors and resistors. The common PN2222A will do the job .Diode lasers are nowhere near as complex as when we had to use high voltage and gas filled tubes with water and refrigerant cooling.Using multiple lasers for a single source isn’t all that hard if you have the money to spend on the optics. The quality of optics is really all over the place depending on your budget.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188525",
"author": "medix",
"timestamp": "2010-10-01T03:56:35",
"content": "… or you could just use a couple of fiber-based power combiners. They’re not that expensive.Coherence is a function the spectral width of the laser:http://en.wikipedia.org/wiki/Coherence_length",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188529",
"author": "medix",
"timestamp": "2010-10-01T03:58:42",
"content": "er, I should say ‘inversely proportional to’ the spectral width. Narrower linewidth = longer coherence length.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188536",
"author": "Jack",
"timestamp": "2010-10-01T04:13:15",
"content": "Laser in dvd/blueray drives isn’t strong to do anything useful with it at all. I dont really like this video with no music btw and the ‘idiot’ put his hand in the laser light as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188544",
"author": "asanthai",
"timestamp": "2010-10-01T04:21:39",
"content": "this makes me want to build one of those computer-controlled laser paper cutters.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188570",
"author": "Abbott",
"timestamp": "2010-10-01T05:00:18",
"content": "So if I were to use a PWM supply on this, couldn’t I theoretically get much more power out of it by pulsing it at higher voltages?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188572",
"author": "Osgeld",
"timestamp": "2010-10-01T05:04:41",
"content": "no abbot, you would get intense pulses but probably the same overall average once its said and doneits like using a machine gun in place of a cannon",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188576",
"author": "Abbott",
"timestamp": "2010-10-01T05:28:24",
"content": "Hmm, fair enough. Oh well, this would probably be powerful enough to (very slowly) burn some designs into leather, perhaps wood too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188589",
"author": "avrpunk",
"timestamp": "2010-10-01T06:00:28",
"content": "@medward1 Cheap lasers that cut steel are typically CO2 laser tubes sourced from China. Water cooled, buy a bottle of CO2 (most gas supply places actually have the proper mix for lasers), a regulator, the transformer, and you’re in business. There are also sealed units that don’t need flowing CO2 but they have less power.You could probably get started cutting metal for about $600, with a self-built CNC setup at around $3000.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188622",
"author": "Localghost",
"timestamp": "2010-10-01T07:44:22",
"content": "@Abbott,You will be able to burn leather, I have done this using DVD diodes, but you need some goggles, or a CNC type thing :),Or, use a webcam to look at the laser behind your LCD and just look at your LCD with your hands behind it, (Like working with one of those biohazard chambers with gloves)…It works well for IR diodes too, cause the webcam can see those :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188652",
"author": "sxrysafis",
"timestamp": "2010-10-01T09:40:16",
"content": "On a similar note to Abbott’s: Could this be modulated (via PWM or such) so as the beam to be visible in the air, while itself being harmless?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188665",
"author": "Tachikoma",
"timestamp": "2010-10-01T10:29:14",
"content": "I realise this video focuses on cheap laser construction… and hats off to that. But I can’t help bitching about the fact that too many youtube vids demonstrate lasers with burning tapes, matches and balloons. Would be more interesting to see actual experiments that require powerful lasers…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188696",
"author": "/me",
"timestamp": "2010-10-01T11:41:55",
"content": "At least 16x DVD writer? That’s not a component you may find in an old pc.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4557535",
"author": "TheRainHarvester on YouTube",
"timestamp": "2018-05-15T16:22:37",
"content": "It is now! 2018 :-)",
"parent_id": "188696",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188713",
"author": "Virgin Hack",
"timestamp": "2010-10-01T12:17:47",
"content": "I think I will make this my first proper hackaday hack. And might even post info on how it goes. Wish me luck and be very patient it will probably take me a very long time to bother to start.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188718",
"author": "Brad Hein",
"timestamp": "2010-10-01T12:35:58",
"content": "He demonstrates the laser cutting tape, lighting matches, and then sets his hand in the beam. Brilliant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188721",
"author": "Whatnot",
"timestamp": "2010-10-01T12:43:38",
"content": "Thanks for giving some answers and info Drake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188723",
"author": "Leithoa",
"timestamp": "2010-10-01T12:49:47",
"content": "@ BradAs the creator has already stated a red laser is bad at burning red/pink flesh. Enough of the laser is reflected/scattered when it hits your flesh to be a poor wavelength for burning you. In industrial processes they use different wavelengths for cutting different materials.In Terms of overall wavelength energy (N)IR/red have the lowest energy with blue/UV having a lot of energy, enough so to break bonds on a molecular level and cause mutations in DNA ie; skin cancer from sun bathing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188765",
"author": "bilbao bob",
"timestamp": "2010-10-01T14:44:21",
"content": "As a kid, I found a big fresnel lens designed to turn a 19″ TV screen into something, uh, bigger, I guess. A few pine boards to make a frame and I discovered it could fry things much larger than ants. If the sun was in the right place, anyway.It turns out that 4 ~300 watt photoflood bulbs in metal reflectors, a used box fan and some 2×4 stock makes a very effective portable death-ray, at least for small enough values of death.Welder’s goggles are a must, but the budding mad scientist must remember that when you’re the only guy with a racoon tan in a place without ski hills.Also, attempting to double the power to eight bulbs teaches you a lot about circuit breakers and introduces you to the physics of waste heat faster than you can say “Did you see that? It exploded!” and start picking fresnel lens shards out of the back yard.You know, I’ll bet the arduino guys look at me like I look back at the teenagers who played with dynamite.I’m pretty certain that when my little grand-daughter gets sent home from school for setting up a plasma disruptor field on the playground, I’ll be there to console her with ice cream, a largish bag of dilithium rock tailings and an explanation of how we can grow crystals in the oven.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2454033",
"author": "L. Vargo",
"timestamp": "2015-02-26T03:41:23",
"content": "Now that’s the way I like to approach technological experiments. Reminds me of when I needed to put a few holes in the bottom of my trash cans for rain drainage and there was this very handy .22 lying about. Do be advised some folks may not be all that open-minded about such experimental processes. Oh well.",
"parent_id": "188765",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "189088",
"author": "cryptocrypto",
"timestamp": "2010-10-02T03:59:21",
"content": "you are all stupid…a dead desktop most likely means that the psu is dead….how the f*ck are you going to power a laser diode with a dead power supply….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1000036",
"author": "Erik",
"timestamp": "2013-05-02T18:00:45",
"content": "“most likely”. You don’t even know whether what you’re saying is true, but yeah, you must be more correct than all these people who have talked very knowledegably about it for ages.",
"parent_id": "189088",
"depth": 2,
"replies": [
{
"comment_id": "8159881",
"author": "Clare Snyder",
"timestamp": "2025-08-09T19:14:15",
"content": "I have not had a dead PC power supply in over 10 years – and I serviced an office with over 35 PCs – we cycled them out at about 6 or 7 years. I did have a server power supply fail – redundant supplies – at about 3 months. If they make it through warranty they are good for the long run. Not like back in the nineties where anything with capacitors failed in 3 years when they “popped”.My own personal computer is a gen 2 i7 (Sandy Bridge) – so 2007-ish. That sucker is old enough to vote and drink!!! (at least here in Ontario) and I just updated it to Win 11 Pro",
"parent_id": "1000036",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "189542",
"author": "Presto",
"timestamp": "2010-10-03T02:20:46",
"content": "Yes an old idea but still impressive in the way that it was put together, very resourceful and intelligent! I think that this particular design would be great for soldering because of the extended use ability and if it can generate enough heat to melt solder that would be awesome!! Nice design Drake!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190039",
"author": "Hoang Quoc Khuong",
"timestamp": "2010-10-03T18:28:11",
"content": "yes,this movie is ok, but how can we increase the watt for this laser source only using some DVD write laser diode and mirror, lens???pleased, clarify regards this matter!, thanks so much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206490",
"author": "harry",
"timestamp": "2010-11-02T05:09:09",
"content": "I wonder if I were about to use a PWM supply on this, could I theoretically get much more power out of it by pulsing it at higher voltages?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "365244",
"author": "Davis",
"timestamp": "2011-03-23T01:00:02",
"content": "i am wanting to do the same thing but im not sure do i need to put a resistor on it and if so im not sure how to do that can anyone help me ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "396191",
"author": "YeaSeb",
"timestamp": "2011-05-19T23:15:53",
"content": "well, i’m working on that build but the aixiz module link is dead… could you tell me what module shall I need and where should I buy it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "418110",
"author": "Travis",
"timestamp": "2011-07-15T21:04:28",
"content": "Ok I talked to him on youtube it is around 350mW laser, and when he put his hand in the laser beam it did not burn him due to the wavelength you can get more information athttp://www.youtube.com/user/styropyro.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "418111",
"author": "Travis",
"timestamp": "2011-07-15T21:08:01",
"content": "YeaSeb, you can ask him at youtubehttp://www.youtube.com/user/styropyro.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "427642",
"author": "Dylan",
"timestamp": "2011-08-03T02:55:44",
"content": "Hey mate few questions how many watts is that 5 oms resistor? and LM316 what type? there are 2 differnt sorts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "565771",
"author": "keith",
"timestamp": "2012-01-24T00:11:49",
"content": "I like this laser is there any plane’s or drawings",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.589136
|
||
https://hackaday.com/2010/09/30/printing-from-a-famicom-clone-computer/
|
Printing From A Famicom Clone Computer
|
Mike Szczys
|
[
"classic hacks",
"Nintendo Hacks"
] |
[
"db25",
"famicom",
"keyboard",
"nes",
"printer"
] |
This is an 8-bit computer and Famicom clone that [133MHz] bought for $2. It plays Nintendo games and using an 80-in-1 cartridge it has a rudimentary operating system and set of applications. Seeing a standard DB25 port on the back [133MHz] wondered if he could
make the system talk to a printer
. His first step was to investigate the electronics inside to find that the connector has a couple of chips that map to the data bus of the CPU and use the same control lines as the cartridge. That means it can be setup to do just about anything in software. After a bit of coding he’s got it printing to a dot-matrix. See for yourself after the break.
[youtube=http://www.youtube.com/watch?v=dl1R4f5sKMA]
[Thanks Tomasito]
| 14
| 14
|
[
{
"comment_id": "188295",
"author": "asheets",
"timestamp": "2010-09-30T19:24:58",
"content": "Am I missing something here? It appears that the setup was designed from the start to print.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188298",
"author": "asheets",
"timestamp": "2010-09-30T19:29:13",
"content": "OK, I see now… by working backwards, he thinks he can build the parts necessary to put a printer port into the Famicoms that don’t have one (but he hasn’t actually done it yet).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188299",
"author": "JViz",
"timestamp": "2010-09-30T19:32:27",
"content": "Wow, that column is horribly written.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188318",
"author": "nes",
"timestamp": "2010-09-30T19:55:50",
"content": "What an amazingly worthwhile project playpower.org is. I wasn’t aware of that at all though I had vague recollection of a keyboard and Basic being available for Famiclones. Thanks Hackaday for blogging it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188323",
"author": "Frenchie",
"timestamp": "2010-09-30T20:00:39",
"content": "Yergle-shmerg?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188383",
"author": "Tomasito",
"timestamp": "2010-09-30T21:41:54",
"content": "I’ve sent this one, and I’d like to point the playpower project. I think it’s an amazing thing that can be very good.Also, thoose famiclones have a good hack potential.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188548",
"author": "brevity",
"timestamp": "2010-10-01T04:36:40",
"content": "Man buys Famiclones with 80-in-1 cartridges. Man notices print option in rudimentary word processor. Famiclone has no DB25 port. Later, man buys Famiclone with DB25 port. He plugs in a printer. It works. Contacted by PlayPower project. Man diagrams schematic for DB25 adapter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188780",
"author": "anfegori91",
"timestamp": "2010-10-01T15:16:35",
"content": "I have one of these famiclones since 1995, and it includes 2 or 3 programs for printing, however I’ve never printed anything. Also it includes a BASIC compiler.. I learned programming in it. I loved it. A couple weeks ago I noticed that the ribbon connector from the keyboard was rusty… my “ASDER PC-95” is now a simple nes clone. BAD ENGLISH.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188814",
"author": "NItrus...",
"timestamp": "2010-10-01T16:13:47",
"content": "Isn’t this a repeat? I’ve seen this on here once already, unless I am going crazy…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189188",
"author": "lolowski",
"timestamp": "2010-10-02T09:24:50",
"content": "Lol, chinese analogue (with russian keyboard and software) was named Subor, you can google for it. It has parallel port (but you weren’t able to store data on cassetted because it lacked the audio i/o).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189260",
"author": "Badger",
"timestamp": "2010-10-02T13:52:20",
"content": "I liked how a Famicom clone’s keybaord has a windows key. Lols.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189279",
"author": "tim",
"timestamp": "2010-10-02T15:45:10",
"content": "What is “dot-matrix”? /s",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189762",
"author": "tom61",
"timestamp": "2010-10-03T10:24:30",
"content": "@tim a printer that uses a set of 9 or 24 pins striking an inked ribbon to make dots to form low-quality text and graphics. A common type of computer printer prior to ink-jet printing becoming cheap and popular.@NItrus… maybe you stumbled across this blog post after Hack a Day posted ‘Adding an RGB input to a cheap generic NTSC TV’ which is also on his blog?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2619930",
"author": "peewee",
"timestamp": "2015-06-23T18:44:34",
"content": "Why are you hammering on that keyboard ? are these keys stuckt :-) hahahaha",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.639927
|
||
https://hackaday.com/2010/09/30/the-new-apple-tv/
|
The New Apple TV
|
Mike Szczys
|
[
"HackIt",
"home entertainment hacks"
] |
[
"a4",
"apple tv",
"arm",
"Cortex-A8",
"exploit",
"SHAtter",
"xbmc"
] |
You’ve probably already heard about the Apple TV 2. It retails for $99 and packs a punch with HD video, optical audio, and WiFi in that tiny package. But as always, we like it for its hackability. Even though it’s just starting to ship, the hacks are already rolling in. The firmware is available from Apple’s servers and
has already been unlocked
with the yet-to-be-release SHAtter exploit. [Das_coach] even sent us a link to a video of
the new Frontrow ported for the iPod touch
(embedded after the break).
But the holy grail has to be XBMC. We’ve seen it
on the first generation Apple TV
and it was good. The second generation switches to
the A4 processor
which is an ARM Cortex-A8. Not quite as easy to port for as the Intel chip on the first generation was. But there is hope, one of the 2010 Google Summer of Code projects worked to port
XBMC to another ARM device
, it’s just a matter of inspiring some developers to take on the quest to make it happen. We can’t wait for the day that we can just velcro one of these to the back of our TV and be done with it, that first generation Xbox isn’t going to last forever.
[youtube=http://www.youtube.com/watch?v=RTJ5yG2LyX8]
[
Photo credit
]
| 38
| 36
|
[
{
"comment_id": "188227",
"author": "3nigmat1c",
"timestamp": "2010-09-30T17:22:48",
"content": "XBMC on the AppleTV would be pure win.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188240",
"author": "fdawg4l",
"timestamp": "2010-09-30T17:50:38",
"content": "Why bother with xbmc on ATV? Isn’t Boxee a derivative of XBMC? Why not just get the Boxee box?Boxee is super sweet to begin with and blessed hardware avoids maintaining a device before you can tune out in front of a TV.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188265",
"author": "ejonesss",
"timestamp": "2010-09-30T18:18:43",
"content": "does it have an internal drive to store the videos and or can you use a usb drive to play the videos from?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188268",
"author": "biozz",
"timestamp": "2010-09-30T18:25:51",
"content": "im not an apple fan im waiting for google tv!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188270",
"author": "Brennan",
"timestamp": "2010-09-30T18:37:08",
"content": "Can someone explain to me why XBMC is so great?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188272",
"author": "Henrik Pedersen",
"timestamp": "2010-09-30T18:41:19",
"content": "Normally I hate Apple… but 99$ sounds great to me and just let me get my custom firmwares and some spraymailing to hide that stubbet logo and we are good to go….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "188364",
"author": "Simon G",
"timestamp": "2010-09-30T21:08:09",
"content": "It’s called spraypaint. Spraymailing is a rather bad mixup of danish and english. Sorry just had to get it out as i’ve seen this poor way to often.",
"parent_id": "188272",
"depth": 2,
"replies": []
},
{
"comment_id": "188367",
"author": "Simon G",
"timestamp": "2010-09-30T21:13:29",
"content": "Dang it.. Should say poor translation of course..",
"parent_id": "188272",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "188273",
"author": "Phil",
"timestamp": "2010-09-30T18:42:05",
"content": "I’m hoping Plex will get ported to it soon after the thing’s jail broken. It’s already been ported to iOS and is available on the app store so it shouldn’t take them too long.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188276",
"author": "Mythgarr",
"timestamp": "2010-09-30T18:44:47",
"content": "Minor correction – while HD Video is technically true, the maximum output resolution is currently 720p. A software patch might be able to tease out full 1080p, but that remains to be seen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188277",
"author": "Johannes",
"timestamp": "2010-09-30T18:50:31",
"content": "@Brennan:http://www.google.nl/images?q=xbmc+aeonhttp://www.google.nl/images?q=xbmc+alaskaPerhaps there’s other nice skins, but who needs more :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188283",
"author": "redbeard",
"timestamp": "2010-09-30T18:56:45",
"content": "Annnd, that being said, part of the holdup for XBMC on a lot of devices is that they want it to be able to run 1080p… not just 720p. That combined with no internal storage AND no expansion ports will leave this being a little lonely compared to Boxee.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188303",
"author": "Keot",
"timestamp": "2010-09-30T19:40:08",
"content": "The Apple TV has 8 GB of onboard storage, and nice row of solder pads for a dock connector hidden on the circuit board. This device is screaming to be hacked. Port Plex (a fork of XBMC) to the device and I’ll suddenly be £99 poorer…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188320",
"author": "Riccardo Cagnasso",
"timestamp": "2010-09-30T19:59:27",
"content": "awh 720 :|",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188332",
"author": "redbeard",
"timestamp": "2010-09-30T20:16:00",
"content": "Also, let me eat crow here, as I just noticed that there is a usb port that was unlabeled on the site under the HDMI port.And @keot, thanks for the tip on plex. It looks like a dope solution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188335",
"author": "Brennan",
"timestamp": "2010-09-30T20:18:57",
"content": "@JohannesOK, it’s skinnable, which admittedly is nice, but I don’t see it as much better than my WMC setup with my 360 as an extender for the TV. If I were to try and use XBMC I would need a small HTPC with a Core2Duo or higher CPU hooked up to the TV at all times, just to stream content from my main PC. Plus with WMC I get DVR functionality and the Guide, as well as watching/pausing live OTA TV. And my 360 is hooked up to the TV anyway so I don’t see the need in adding another box.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188398",
"author": "walt",
"timestamp": "2010-09-30T22:08:35",
"content": "is it really $99? or is it $99 for the hardware followed by additional apple fees to actually do anything with it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188427",
"author": "cantido",
"timestamp": "2010-09-30T23:05:08",
"content": "Getting XBMC running on Linux/ARM shouldn’t be too hard.. assuming the graphics engine is going to be a PowerVR design accelerated video playback should be ok too (a bit of googling shows that someone is working on a VA-API driver for some PowerVR chip).Is it worth it though? General XBMC users will probably want a machine with more guts (ION based Atom machines are great for XBMC on Linux). Nothing against XBMC (I use it..) but those who are willing to pay Apple will probably prefer Apple’s software over the slightly ropey and confusing XBMC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188460",
"author": "dhilan",
"timestamp": "2010-10-01T01:09:48",
"content": "@BrennanWell, 1) XBMC plays any format you throw at it. 2) Its open source and you can tweak it. Lots of community support, skins and addons are out there. Very flexible architecture. 3) It runs on many devices. The original Xbox, AppleTV, PC, Linux, Mac etc. 4) Easy UI. (Passes WAF – Wife Acceptance Factor). 5) It just works. Install it and its ready to go. No configuration needed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188505",
"author": "GZ",
"timestamp": "2010-10-01T02:56:15",
"content": "Hmm… bet you could do it for less with a hacked dockstar and few usb parts. :)Glad the second one is on the way! Of course.. this means I now need a third…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188507",
"author": "Whatnot",
"timestamp": "2010-10-01T02:58:49",
"content": "You can get a dozen different brand media players for about the same price that don’t need to be desperately hacked, I don’t get this excitement.Now if you could run android on it.. then maybe >:)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188540",
"author": "h_2_o",
"timestamp": "2010-10-01T04:16:32",
"content": "what i don’t get….well i do idiot fanboys who think apple is the end all. anyway back to my oint what i don’t get is why this gets the attention and stuff like roku who actually embrace development (well more than apple) get no lovin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188592",
"author": "Ford",
"timestamp": "2010-10-01T06:04:10",
"content": "Whatnot, do you mean to hack a Dockstar to output video to your TV? That seems like a pretty serious endeavor.fdawg4l, it looks like the Boxee box is $200. The $100 difference seems like a good enough reason to me…Personally, I’m still out on the Apple TV. I’m very interested in getting something like it, but the fact that it doesn’t have actual support for an external USB HD is a big drawback. Let’s see how well hacking it goes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188629",
"author": "Gert",
"timestamp": "2010-10-01T08:08:32",
"content": "I hope someone programs a nes clone for this.Controllers via the IR-receiver.8 Gb rom space.Is the A4 capable of running NES games?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188683",
"author": "ChalkBored",
"timestamp": "2010-10-01T11:18:01",
"content": "@Ford",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188685",
"author": "ChalkBored",
"timestamp": "2010-10-01T11:22:13",
"content": "@Ford,you meant GZ, and while it’s possible to get output to a tv through a dockstar using a displaylink device, I don’t think it will be happy doing it.@ Gert,It will probably happen shortly after people port PSGroove to it, since that seems to get ported to everything ASAP.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188740",
"author": "jjrh",
"timestamp": "2010-10-01T13:17:00",
"content": "Well on the one hand this is hackaday, so people want to hack something, not buy a device that is already open requiring no hacking. On the other hand if your looking for a device to play movies on your TV either by streaming or a internal hdd, there are lots of options in the 100$ range.I have been looking at the Argosy HV335T which is selling for about 100$, plays MKV files, room for a internal hdd, ethernet port. I haven’t been able to find many solid reviews on the thing, but it might be worth it. Only thing it’s lacking is a way to play emulators on it which is probably better off done with a dedicated device anyways.Just my two cents.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188971",
"author": "pooty",
"timestamp": "2010-10-01T21:11:24",
"content": "aTV2 has been successfully jailbroken.http://news.softpedia.com/news/Apple-TV-2-Officially-Jailbroken-via-SHAtter-Custom-IPSW-Apps-Coming-158899.shtml",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189013",
"author": "Lewis",
"timestamp": "2010-10-01T23:35:00",
"content": "Apple TV is pure hype. The Roku player has more bite in it than ever. With Roku, you can get Netflix or Amazon On-Demand. With Amazon On-Demand, you get to keep the Tv shows you buy, unlike Apple TV, which lets you on rent them. Currently, Roku has over 100 channels and is looking to add Hulu plus before the year is out. The Roku $59 plays 780 while the high end $99 plays 1080 and has USB support and a instant replay. Check out a Roku before you invest in Apple TV.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189212",
"author": "daqq",
"timestamp": "2010-10-02T10:47:08",
"content": "@Lewis: Apple producing something that’s pure hype… that’s a first!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189625",
"author": "Whatnot",
"timestamp": "2010-10-03T04:17:03",
"content": "It’s true that hacking it is in itself interesting from the pure hacking viewpoint, but when hacking to go for simply running XBMC on it and get excited about that possible prospect and then saying it would be a dream and it would give you a ‘$99 player’ is silly if you can walk into any electronics retailer and get a player for that already.But if that makes you happy I’m OK with it though, I sometimes have quaint things that I find thrilling too, things others might find uninteresting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "195165",
"author": "lakeboy",
"timestamp": "2010-10-11T15:03:20",
"content": "what we need is “air video” app runningthat should work easily",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210720",
"author": "Dan",
"timestamp": "2010-11-11T05:11:57",
"content": "Does anyone think about open atv2 to streaming files from external NAS. like an ITunes server for music?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212275",
"author": "thescragster",
"timestamp": "2010-11-14T11:27:03",
"content": "There is a full video tutorial on how to jailbreak the New Apple TV 2G here:http://iphoneblogr.com/2010/11/how-to-jailbreak-apple-tv-2g-using-the-pwnage-tool-on-ios-4-1-video-tutorial/And a video tutorial on how to install NitoTV here:http://iphoneblogr.com/2010/10/how-to-install-nitotv-on-your-jailbroken-apple-tv-2g/And how to install Plex on the Apple TV 2G here:http://iphoneblogr.com/2010/11/how-to-install-plex-onto-apple-tv-2g-play-almost-any-video-file-type-video-tutorial/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "282995",
"author": "joe",
"timestamp": "2010-12-12T17:42:29",
"content": "if you haven’t used XBMC, and you download a lot of media, you are living in the stone age.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "313542",
"author": "Josh",
"timestamp": "2011-01-24T23:07:08",
"content": "how do i know if my apple tv is jailbroken, i tried using seasonpass but idk if it worked",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "341542",
"author": "arturito",
"timestamp": "2011-02-25T10:10:27",
"content": "This a short tutorial on installing XBMC on Apple TV 2 (untethered) with Windows/Linux/Mac.http://arturito.net/2011/02/14/apple-tv-2-untethered-jailbreak-on-windows-and-xbmc-media-centre-installation/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "383742",
"author": "Ted",
"timestamp": "2011-04-21T05:33:58",
"content": "Boxee Box and DLink violate GPL and admit it!Every Boxee Box shipped with GPLv3 in firmware, yet they lock down the box explicitly violating licensing terms while profiting from the open source community.See the details of the test reproducible on every single Boxee Box here:http://infinityoverzero.com/bbox/Will this be the first test of GPLv3 in the courts??",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.808055
|
||
https://hackaday.com/2010/09/30/usb-mouse-with-storage-added/
|
USB Mouse With Storage Added
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"hidden",
"hub",
"mouse",
"thumb drive",
"usb"
] |
[Thice] wanted to try his hand at
incorporating a USB driving into other devices
. He chose to add storage to his USB mouse but didn’t want to alter the factory look provided by a color-changing LED inside. To make things fit he ended up cutting a good portion of a USB hub’s circuit board off and placing it beneath the mouse circuitry. You can see the board from the thumb drive wedged into one end of the case in the image above.
He sees this as a way of hiding data in plain sight. This is true, and it’s along the same lines we’ve seen before with
a WiFi dongle in a mouse
, or the
thumbdrive in a controller
hacks. To be truly hidden we’d like to see someone incorporate a microcontroller that monitors the mouse buttons for a certain code, and then toggles the voltage to the USB storage. This would simulate plugging and unplugging the drive, hiding it virtually as well as physically.
| 31
| 31
|
[
{
"comment_id": "188184",
"author": "Luke",
"timestamp": "2010-09-30T16:05:26",
"content": "“I fear you are underestimating the sneakiness, sir.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188193",
"author": "NateDogg",
"timestamp": "2010-09-30T16:17:08",
"content": "Second Baptist Church! I’m numba 2!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188196",
"author": "Rob",
"timestamp": "2010-09-30T16:19:13",
"content": "He should add in IronGeeks PHUKD!http://hackaday.com/2010/04/05/program-your-own-mayhem-causing-usb-dongle/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188208",
"author": "Addidis",
"timestamp": "2010-09-30T16:44:17",
"content": "Ok just to complicate your good idea :Design your own controller chip (using 18f26j50)Then make the storage device a micro sd card cause theyre smaller and cooler :PLoad the micro SD firmware into a bootloader.To enter the bootloader (which u should take out the bootloading part lol) you turn the scroll wheel to imput a combination while holding a button combo.Now you have a pretty sweet spy quality hidden storage device.It would actually be relatively easy too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188209",
"author": "biozz",
"timestamp": "2010-09-30T16:45:31",
"content": "i love the concept but i have yet to find a use for something like this",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188211",
"author": "Addidis",
"timestamp": "2010-09-30T16:50:23",
"content": "PS the bootloader would need a composite mouse & msd firmware or your mouse would stop working lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188218",
"author": "fartface",
"timestamp": "2010-09-30T17:07:22",
"content": "Better is to put a tiny switch to DISABLE the storage, that way you can discreetly enable it, copy the files and then disable it again.Best would be to use a microSD card reader in it so you can extract the card and slip it in a slit cut in your shoe to smuggle it in and out of the facility.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188219",
"author": "makethismaze",
"timestamp": "2010-09-30T17:09:22",
"content": "I could see this being useful if you use a laptop and always carry around and external mouse as well as a usb stick.I wonder if it could be modified somehow to also work with the wireless usb mice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188221",
"author": "Edward",
"timestamp": "2010-09-30T17:15:12",
"content": "“[Toggle] the voltage to the USB storage”IMO that is not enough, you need to hide the hub as well otherwise it will be quite obvious that something is hidden in the mouse.How could one successfully hide the hub as well as the drive while allowing the mouse to work normally until the code is entered?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188223",
"author": "mixadj",
"timestamp": "2010-09-30T17:16:35",
"content": "@Addidis : With a 4 way scroll the code should be UUDDLRLR on scroll then LC-RC………..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188228",
"author": "Wolfton",
"timestamp": "2010-09-30T17:22:58",
"content": "Guess I can’t bring my personal mice to work anymore…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188235",
"author": "Don",
"timestamp": "2010-09-30T17:41:49",
"content": "Hmmm Use usb key board instead .More room to hidedevices.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188261",
"author": "Frink",
"timestamp": "2010-09-30T18:14:09",
"content": "@Edward: Maybe reading the article instead of just looking at the picture would help you understand things better. The hub is actually cut down and hidden inside the mouse. It connects to the PC using the original mouse cable. The mouse and memory stick are then soldered to the hub.Neat trick, similar to what the eeepc modding scene has been doing for a few years now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188263",
"author": "Mike",
"timestamp": "2010-09-30T18:15:35",
"content": "@EdwardUse some tristates to swap the connections between the mouse itself and the hub with the mouse connected",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188274",
"author": "Addidis",
"timestamp": "2010-09-30T18:42:19",
"content": "@mixadj Exactly, and i love the old mortal combat reference.The problem with this as a covert device is when you plug it in a HUB is enumerating NOT a mouse. Then a mouse enumerates. Im venturing a guess that this setup takes about 45 seconds to fully enumerate. Thats not fast. The reason for this is as follows.Hub enumerates,hub resets,hub sees mouse,hub enumerates mouse,hub resets,In device manager a new hub will show up. If you know where to look you can track where this hub is and what it has connected.As it installs a slew of messages , and resets will occur.VS what i suggested :On plug in the mouse would install in about 8 seconds.No other devices would show up but a mouse.with one hand you could enter the “bootloader” magically the mouse disconnects and a composite mouse and msd will enumerate. This shouldtake about 20 seconds. The window for the Microsd will pop up automatically. Drop in the files , a quick key combo to reset the device and in 8 seconds or so your MSD device is disconnected and your mouse is back to normal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188278",
"author": "Edward",
"timestamp": "2010-09-30T18:51:20",
"content": "@FrinkI did not mean physically.When plugged in this mouse will look to the computer to be a hub and a mouse. Anyone who gains access to the mouse and plugs it in (or watches the screen while you plug it in) will be able to notice that there is a hub inside the mouse.[Mike Szczys] noted that one could hide the flash drive by requiring a code before it gets voltage. This would not hide the fact that there is a hub inside the mouse and thus not hide the fact that the mouse has been altered.My question is. How can one create a mouse where the only way of detecting the hidden flash drive is by looking inside, entering the code or some electronic analysis of the mouse (but to do that last one would require suspicion in the first place and is thus not a significant concern as far as this project is concerned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188287",
"author": "M4Lki3r",
"timestamp": "2010-09-30T19:07:46",
"content": "@EdwardWhat if you ditched the hub and used a toggle switch to toggle the power between the mouse portion and the flash drive? You would lose use of the mouse, but who really needs a mouse to copy files?Actually, if you wrote a script to copy the files you wanted onto the flash drive, called the flash drive with an autorun, you wouldn’t even need to type.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188294",
"author": "Shadyman",
"timestamp": "2010-09-30T19:24:18",
"content": "@fartface:Maybe a magnetic reed switch, that way there are no outward signs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188297",
"author": "Michael Bradley",
"timestamp": "2010-09-30T19:27:09",
"content": "I like the idea. Having a uC would definately help. Such as passwords inside, auth stuff. When the secret service come in and shut everything down, and sieze it, they rarely sieze the mouse keyboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188302",
"author": "Addidis",
"timestamp": "2010-09-30T19:37:58",
"content": "@ edward read my post…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188321",
"author": "Bit Mage",
"timestamp": "2010-09-30T20:00:24",
"content": "“Certain code”like up, up, down, down, left, right, b, a?You have a left/right a/b mouse with an up/down wheel?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188324",
"author": "Addidis",
"timestamp": "2010-09-30T20:03:55",
"content": "The scroll wheel on some mice also goes left or right.Up – scroll wheel forwarddown – scroll wheel backwardsleft – scroll wheel leftright – scroll wheel rightA – left mouseB – right mouseKey combo to accept code – left and right bumper buttons.;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188330",
"author": "zeropointmodule",
"timestamp": "2010-09-30T20:12:33",
"content": "@Shadyman, reed switches are soooo last century.Better to use an accelerometer sensor to detect the mouse being moved in a preset direction sequence to “unlock” the flash.an interesting idea is to emulate a keyboard and write the driver in Notepad, do File-Save as xxx.drv to the root directory and “All Files”, then have the PC automagically load the driver using the mouse to select the driver from the list.Only emulations needed are mouse and generic keyboard…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188344",
"author": "bemis",
"timestamp": "2010-09-30T20:40:00",
"content": "Thanks a lot you bastards, it took me 20 minutes to put my mouse back together after wanting to look how much space was in there… :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188366",
"author": "madh2orat",
"timestamp": "2010-09-30T21:13:15",
"content": "Now all we need is to be able to incorporate it into a wireless mouse. (yes, I know it doesn’t quite work that way.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188386",
"author": "Patrick",
"timestamp": "2010-09-30T21:44:04",
"content": "Lol people steal mice, think they’re not gonna see “new thumbdrive detected” pop up?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188391",
"author": "MistaKD",
"timestamp": "2010-09-30T21:49:07",
"content": "A nice and simple hidden storage setup:Thumbdrive inside a wall enclosure wired to a female telephone jack.Inside the pc the female telephone jack on the 56k pci modem you never use is wired to an internal usb port on a usb pci card.When you plug your 56k modem into the wall telephone jack, instant storage device.Fun easy project that I should really instructable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188416",
"author": "blue carbuncle",
"timestamp": "2010-09-30T22:50:34",
"content": "Not the prettiest gal at the dance but reminds me of something I would do lol. Kudos for getting everything chopped down and wired together :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188434",
"author": "Oren Beck",
"timestamp": "2010-09-30T23:21:41",
"content": "Sigh.. everyone seems to think that Hacking=Exploit.Oh, there’s a plausible zone of declaring “White Hat” reasons for brainstorming exploit vectors to plug those holes. That’s an aspect of being a Hacker with honor )I’d suggest the applications of this excellent Hack be things that are simply utility/functional. From that angle of approach?Windows users that might have life get easier by the Portable Apps suite+ THEIR personal folders etc being embedded in the mouse or USB keyboard they keep with them.Or- Flash-Puppy with BT/WiFi radios in that mouse or USB kybd as a service tool that bypasses a munged OS for legit saving of a user’s files. Hell, you can get REALLY extreme and cram a 3G radio into mouse or kybd as a way to export stuff you are pulling off a machine.I have a USB hub epoxied to one of my Cherryswitch “service keyboards” that has an embedded trackball. Since the kybd was PS/2 and most of my calls would have been a PITA to access those ports-PS/2>USB converter FTW! It was used for a set of jobs reflashing Kiosk PCs. One USB plug instead of juggling flash drives, keyboard and mouse. By the 10th kiosk ticket that day, I wondered why I had not done it sooner.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188593",
"author": "elektrophreak",
"timestamp": "2010-10-01T06:11:27",
"content": "now that is a really good idea! i love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188645",
"author": "MrCung",
"timestamp": "2010-10-01T09:09:27",
"content": "I did the same thing, but with a 3G modem. That way i would be able to cheat in my exams :P",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,365.875405
|
||
https://hackaday.com/2010/09/30/wooden-quadcopter-body/
|
Wooden Quadcopter Body
|
Caleb Kraft
|
[
"Toy Hacks"
] |
[
"flying",
"quadcopter",
"rc",
"wood"
] |
[Greasetattoo] shares the process of
building his wooden quadcopter body
that won 2nd place in the Minnesota state fair. His plans were purchased as a kit back in 1999, but he never got around to actually building them. The original plans called for a foam board body, but he felt that a wooden piece of art would be much nicer. This build isn’t focusing on the electronics, they’re just a kit from Mikrokopter. Instead, it is a log of the entire process of making the beautiful wooden body. He really put some nice detail in there from the layered and nicely finished dome to the little oak sleeves for his motors. Great job [Greasetattoo].
| 3
| 3
|
[
{
"comment_id": "188158",
"author": "Paul",
"timestamp": "2010-09-30T15:22:30",
"content": "Maybe he could use the BaronPilot could complete it?http://www.elenafrancesco.org/arduino/baronpilot/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188187",
"author": "JB",
"timestamp": "2010-09-30T16:11:25",
"content": "Nice wood work! Beautiful and functional. Certainly deserves to be on display.What a difference a decade makes. Back then I used a foam one with a NiCd battery that only kept it airborne for about 3 minutes. Crashing it would destroy it completely, as I discovered the hard way, after a few days of use. The motor-based gyro sucked too. I guess I should get a newer unit to play with, and mount a downward facing camera on it :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188224",
"author": "bilbao bob",
"timestamp": "2010-09-30T17:16:49",
"content": "Foolishly tried to build a balsa and electric T configuration device a couple decades ago. Had to use a cord, the battery power just wasn’t there. It did OK in ground effect, but would surge and flip over regularly due to crappy filtering.After the second or third near decapitation of my girlfriend’s dog, it was relegated to the scrap heap. A friend built a quad copter using nylon push rod tubes, and it did much better – but still flew only in ground effect.He went on to R/C planes after his quad-copter prototype hit his wife in the back and left a nasty mark. Un-guarded propellers can hurt.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.187121
|
||
https://hackaday.com/2010/09/30/dazzling-coat-sure-to-be-in-demand-with-pimps-everywhere/
|
Dazzling Coat Sure To Be In Demand With Pimps Everywhere
|
Mike Szczys
|
[
"LED Hacks",
"Wearable Hacks"
] |
[
"burning man",
"coat",
"dreamcoat",
"faux",
"fur",
"rgb",
"tlc5940"
] |
This is the newest addition to [Arren Parker’s] Burning Man wardrobe. The full-length lighted faux-fur coats is completely his creation. He started with a pattern that he acquired from Ebay, adding side pockets and changing the hood to a collar. From there he added the 256 RGB LEDs that make it shimmer so appealingly.
For this to work, he designed and ordered 300 tiny PCBs on which a connector socket and the LED are soldered. These are driven by a set of six TLC5940 pulse-width modulation chips, and ultimately by an Arduino. The effect is spectacular (see for yourself after the break), and we’re sure it’ll be a hit at burning man.
[vimeo=http://vimeo.com/15385739]
| 37
| 37
|
[
{
"comment_id": "188126",
"author": "Matt",
"timestamp": "2010-09-30T13:23:17",
"content": "It’s like a Christmas tree for hookers to sit around and get their presents!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188129",
"author": "Jake",
"timestamp": "2010-09-30T13:38:50",
"content": "I wouldn’t call this a hack. It’s something…. Just not a hack. I also wouldn’t call him a pimp…. More like a fruit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188134",
"author": "CB4",
"timestamp": "2010-09-30T14:06:10",
"content": "Oh don’t be bitter, it’s a nice build.It’s like a lure for women of low moral fibre :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188136",
"author": "JB",
"timestamp": "2010-09-30T14:12:08",
"content": "@Jake:Not a hack? He added lights to a coat that didn’t come with them to begin with…qualifies as a hack.But it IS something, alright… :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188137",
"author": "JB",
"timestamp": "2010-09-30T14:13:27",
"content": "@ Matt: LOL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188144",
"author": "phil",
"timestamp": "2010-09-30T14:45:25",
"content": "awesome. like to see some sensor incorporation, such as fading the colors in the direction the wind is blowing. wish i was going to burning man…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188146",
"author": "TheAstrogator",
"timestamp": "2010-09-30T14:54:37",
"content": "I have to agree, it’s not really a hack. Unless hacking clothing is what this is all about. I like it anyways, and it kinda proves he is a pimp because of all the money he burned on this coat. Spendin’ them dollas",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188148",
"author": "James",
"timestamp": "2010-09-30T14:55:49",
"content": "hows about hot-wire anemometers next to each LED and the lighting proportional to it, effectively showing the air speed over the surface as you walk. Now THAT I would love to see.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188149",
"author": "GeekDoc",
"timestamp": "2010-09-30T15:03:06",
"content": "Awww, c’mon HAD, you owe this guy a link…http://rgbledcoat.blogspot.com/(from the video)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188151",
"author": "dbear",
"timestamp": "2010-09-30T15:05:34",
"content": "Hack or not?1. Did the maker design it himself ? Yes – HACK2. Did the maker make it himself? Yes – HACK3. Is clothing hackable? Yes – HACK3. Is it unique and new? No probably not – I found several led coats online – Not HACKSo what is the definition of a Hack?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188152",
"author": "GeekDoc",
"timestamp": "2010-09-30T15:05:53",
"content": "BTW: All those who say this is not a hack, you really need to check that link and see the work that went into this.I agree with @JB.@Matt: You made me literally LOL.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188155",
"author": "Steve Pomeroy",
"timestamp": "2010-09-30T15:16:12",
"content": "Judging by his blog, it is not faux fur, but actual fur.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188157",
"author": "Steve Pomeroy",
"timestamp": "2010-09-30T15:22:21",
"content": "Err, it is faux fur – he just doesn’t clarify. I suppose real fur would be a bit too spendy for such a hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188160",
"author": "Michael",
"timestamp": "2010-09-30T15:27:22",
"content": "The coat definitely makes a statement. Not sure what the statement is though…Anyway good luck to him, the way I see it I think I would pass on wearing it; this coat only makes it easier for the rooftop snipers to see him in the dark.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188177",
"author": "Chris",
"timestamp": "2010-09-30T15:45:20",
"content": "Gandalf on acid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188199",
"author": "andar_b",
"timestamp": "2010-09-30T16:23:55",
"content": "Looks like someone found that amazing technicolor dreamcoat lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188200",
"author": "Bill",
"timestamp": "2010-09-30T16:30:01",
"content": "Definitely a hack, just not unique or original anymore. Everyone and their mother has an LED coat / garment now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188234",
"author": "rallen71366",
"timestamp": "2010-09-30T17:26:00",
"content": "@Chris – I almost choked on my ramen. You have a way with words. A funny, weird way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188247",
"author": "Arren",
"timestamp": "2010-09-30T17:57:20",
"content": "On the comment of Original/Unique. I have yet to find one LED coat out there that is completely programable and doesn’t require a connection to a laptop to run it :-)Ideally I will be including a handheld controller and some ability to make it react to sound/music. I will likely need to go with a more powerful microcontroller.Plus the whole point of this was to be a roving art installation at Burning Man. I had brighter lights on me then most art cars roving the playa. Thank you for the comments :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188249",
"author": "Arren",
"timestamp": "2010-09-30T17:58:59",
"content": "Oh, and I would appreciate the link being added.http://rgbledcoat.blogspot.com/Thanks GeekDoc",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188260",
"author": "Spork",
"timestamp": "2010-09-30T18:09:56",
"content": "@ChisWelcome to Burning Man.Very cool hack. I wouldn’t wear the coat, but the electronics side is pretty awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188281",
"author": "Bill",
"timestamp": "2010-09-30T18:55:41",
"content": "@ArrenApparently you never googled it. Try it, there’s a whole lot of results, most running with embedded controllers. There was even a RGB LED coat on hack-a-day recently that is programmable and accepts commands from an iPhone for modes. Hell, even I built an LED Lab coat back in college (with a college budget), 3 years ago before RGB leds were affordable; and made it “completely programable and doesn’t require a connection to a laptop” a year ago.http://www.billporter.info/?p=92I’m not trying to belittle your work at all. It’s gorgeous, and I respect the quality of wiring and design; and i’m glad Hack-a-day featured it so I could see it. LED clothes just isn’t a new thing at all, everybody’s doing it now; which could explain why people don’t feel like this is a hack(it really is). It’s just an old (and over-done) one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188291",
"author": "Michael Bradley",
"timestamp": "2010-09-30T19:18:14",
"content": "1 word, iPimp, look out apple",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188301",
"author": "Arren",
"timestamp": "2010-09-30T19:36:14",
"content": "@Bill I apologize for any claims to originality regarding having a controller built in :-)To a point on the LED-suit posted recently, he is using pre-existing LED Modules and the impresion I got about his code is that the arduino is only acting as a reciever for all commands from the Iphone. But his build quality is still very impressive.I suppose what I am claiming in originality is more the scale and configuration. I should get a clearer picture of the wiring on the coat, it may require inverting the lining however. The matrix itself is pretty much its own hack. Controlling a 16×16 12bit RGB matrix with a single Arduino was no small feat.And no, light up LED clothing is not by any means new :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188312",
"author": "Bill",
"timestamp": "2010-09-30T19:54:42",
"content": "I hear you Arren. Right now i’m working on a project i’m calling ‘Arduquee’http://www.billporter.info/?p=374which is a 8×8 Red/Green LED matrix driver that is chain-able to any length, all running off 6 IO lines of a single Arduino. Future plans include PWM colors, and scaling up to a RGB matrix. I can appreciate the control you have over your RGB LEDs, and i’ll most likely be creating something similar soon, a new version of my Lab coat. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188319",
"author": "mowcius",
"timestamp": "2010-09-30T19:59:06",
"content": "Oh you owe this guy a… hey didn’t I send you the link to this yesterday?Mowcius hides away in the corner as he was not mentioned for being helpful…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188339",
"author": "Arren",
"timestamp": "2010-09-30T20:23:55",
"content": "@Bill Pretty cool looking, and excellent design. I like how clean the boards are. I really need to start working with SMD components so I can get smaller simpler layouts. I started out my project testing with an 8×8 rgb matrix of the same type. I will be curious how you end up doing PWM.One of the reasons I went with the TLC5940 was ease of use for PWM control. The biggest issue I had to overcome was the refresh rate. Each frame requires shifting out just over 1kb of data via I2C which ate up a lot of the Arduino’s resources. Until I was able to get the interrupt code to work properly, I was very limited as to what patterns I could actually get the Arduino to do.256(leds)*3(rgb)*12(pwm bits)+8(Shift Register bit)=1152 bytesThe biggest advantage to this is the clean color transitions and is scalable on any axis at the loss of either brightness(adding an additional Shift register for more rows) or data throughput with addiitonal TLC5940s. Currently I do not know what my refresh rate actually is, I need to borrow/get an oscilliscope.With a more powerful controller either of these issues could easily be overcome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188389",
"author": "Ravetacular",
"timestamp": "2010-09-30T21:47:08",
"content": "WHOA! glowey lights that are soft to the touch, Digg it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188405",
"author": "Derek Vance",
"timestamp": "2010-09-30T22:25:36",
"content": "altho i would never wear this coat….you sir, deserve a voucher for 1 [Free Internet]",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188468",
"author": "Peter (Seattle)",
"timestamp": "2010-10-01T01:27:06",
"content": "This *totally* needs a matching wide-brim hat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188485",
"author": "Tom Hargrave",
"timestamp": "2010-10-01T02:16:40",
"content": "Just what I need for night rides on my Harley during the Christmas season!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188513",
"author": "charlie",
"timestamp": "2010-10-01T03:26:16",
"content": "Where are the pimp shoes……Come on, he went to the trouble of finding a hat, YOU have to have shoes.Not complete till he finds them shoes!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188611",
"author": "Tachikoma",
"timestamp": "2010-10-01T07:05:02",
"content": "Willie Dynamite would have loved this shit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188638",
"author": "anon",
"timestamp": "2010-10-01T08:24:52",
"content": "You made my day Matt.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "377844",
"author": "Bill",
"timestamp": "2011-04-10T21:42:39",
"content": "@ArrenHope you are still following this thread. I’m building a somewhat similar coat for my Childrens Science Show. See:http://www.billporter.info/science-brothers-premiere-show/I wanted to peak at how you handled the multiplexing with TLCs in code. Do you mind giving me such a peak? My email address is at the bottom of the page I linked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "377882",
"author": "Arren",
"timestamp": "2011-04-10T23:07:00",
"content": "@BillShould have just sent you an email. Keep me updated!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "687991",
"author": "Galane",
"timestamp": "2012-06-25T22:31:31",
"content": "“…256 RGB LEDs that make it shimmer so appealingly.”More like appallingly… ;)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.062286
|
||
https://hackaday.com/2010/09/29/magnets-capable-of-brain-hacks/
|
Magnets Capable Of Brain Hacks
|
Greg R. Jacobs
|
[
"Medical Hacks"
] |
[
"magnet"
] |
It has been recently discovered that all of the snap decisions that your brain makes on which hand to use to do simple tasks, such as picking up an object from a table, can now be automatically decided for you. This is done using magnetic stimulation that is applied using
transcranial magnetic stimulation
or TMS. This TMS will affect the brains ability to process motor movements and reduces the chances that the right hand will be chosen over the left. This major discovery was found by
PNAS
(Proceedings of the National Academy of Sciences of the United States of America) who hopes to use this later on for rehabilitating stroke victims, making them using the limbs that may suffer from the event. Here is to hoping that an in home product will be released in the future so children can become ambidextrous in everything they do. It seems like that is a way off but it does seem more natural than most hacks to
your body
.
Via [
iO9
]
| 53
| 50
|
[
{
"comment_id": "187864",
"author": "Wolfton",
"timestamp": "2010-09-29T21:30:02",
"content": "Magnetic Mind Control?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187878",
"author": "EFH",
"timestamp": "2010-09-29T21:54:34",
"content": "It wasn’t “found by” PNAS — it was reported in PNAS, which is an academic journal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187880",
"author": "dusty mclain",
"timestamp": "2010-09-29T21:54:46",
"content": "mind un-control",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187881",
"author": "Larry",
"timestamp": "2010-09-29T21:57:47",
"content": "I am ambidextrous, e.g I wear my watch on the right hand, am mainly right handed now though.But this came with what is called dislexia, when you write your b’s like d’s and visa versa, also when I used to draw a circle, one time it would go around clockwise the other the anticlockwise. This different type of learning made me struggle at school, so unless everyone and every school adapts, it will be a pain! As for stroke victims, it will be great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187889",
"author": "the_dude",
"timestamp": "2010-09-29T22:13:19",
"content": "this is the most poorly written hackaday post I’ve ever read.“It has been recently discovered that all of the snap decisions that your brain makes on which hand to use to do simple tasks, such as picking up an object from a table, can now be automatically decided for you.”“This is done using magnetic stimulation that is applied…”plz get your learn on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187890",
"author": "emilio",
"timestamp": "2010-09-29T22:16:18",
"content": "TMS has been around for a while.it is also VERY experimental and many mechanisms are not understood. this summary does not actually say what TMS does: it turns off localized brain activity. yes, that is a very scary thing, and it took scientists years before they’d try it on anyone but themselves.yeah, it sounds cool and easy, but DO NOT FUCK AROUND WITH TMS.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "187896",
"author": "Torque",
"timestamp": "2010-09-29T22:29:09",
"content": "If only we could use them to prevent more in depth decisions, like naming your major publication “p-nas” (say it with me…) we could help prevent the Idiocracy prophecy… .(",
"parent_id": "187890",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "187894",
"author": "Kuhltwo",
"timestamp": "2010-09-29T22:23:55",
"content": "MRI’s make me sleep like a baby. I am left handed by nature, ambidextrous by the public school system.I stay away from strong magnets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187897",
"author": "mcclanahoochie",
"timestamp": "2010-09-29T22:31:16",
"content": "Magnets? How do they work?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187902",
"author": "Torque",
"timestamp": "2010-09-29T22:39:22",
"content": "Oops",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187911",
"author": "zool",
"timestamp": "2010-09-29T22:59:49",
"content": "fucking magnets…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187922",
"author": "PhilKll",
"timestamp": "2010-09-29T23:16:28",
"content": "Wonder if its more or less effective than Tequila?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187935",
"author": "Patrick (not the right-wing one)",
"timestamp": "2010-09-29T23:37:59",
"content": "@zool: “fucking magnets…”How do they work?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187937",
"author": "andrew",
"timestamp": "2010-09-29T23:40:16",
"content": "This reminds me a really cool series of studies described by Daniel Wegner in the book “the illusion of conscious will” in which subjects are told to consciously flex their finger at the moment they “decide” to while their brains are being scanned. The experimenters found that a reliable signal appears half-a-second before the subjects experienced their own “will.” In other words, their brains decided when to flex the finger half-a-second before the subjects even knew they were going to do it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187958",
"author": "ejonesss",
"timestamp": "2010-09-30T00:17:14",
"content": "does anyone know if magnetics can cause or trigger a Migraine like condition (classic kapow oval aura and a mild headache)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187964",
"author": "Oren Beck",
"timestamp": "2010-09-30T00:41:47",
"content": "The use of any technology carries risks. From that basic fact we developed concepts of risk evaluation and ethical guidelines for science explorations involving risk to humans. External magnetic fields are not exempt from those “risk ethics” we apply to any other experimental technology usage.The history of over or under estimating long term risks dictates a balance between paranoia and reckless endangerment. Which is the “reason” for an ethics review process in cases of potential risk above the trivial.Though some folks of the Hacker realms often disdain established rules. So it’s a safe bet that there is self-experimentation going on. Look at the Open EEG lists as an example of “Trivial Risk” self- experimentation :)So- if we combine the Open EEG work with magnetic field testing it gets a bit closer to having closed loop monitoring. As most brain work relies on the human communicating their experiential data after the event.Think of it as following a lower risk path than those taken by Dr Lilly and Alexander Shulgin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187965",
"author": "daenris",
"timestamp": "2010-09-30T00:43:24",
"content": "@ejonesssdepends on how strong the magnet is and how targeted it is. People work around 3 or 4 Tesla MRI machines all the time without experiencing ill effects. A 7 Tesla MRI on the other hand can cause nausea in people as they move through the magnetic field.TMS is generally a lower magnetic field strength, however it’s localized to a very small region. Incorrect stimulation can cause headaches, scalp pain, or in rare cases even seizures.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187970",
"author": "fermicirrus",
"timestamp": "2010-09-30T01:22:23",
"content": "http://www.wired.com/wired/archive/7.11/persinger.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187996",
"author": "Nels",
"timestamp": "2010-09-30T02:36:54",
"content": "@Greg R. JacobsMight want to start getting your posts proof-read. Everything you write sounds like an English as a second language assignment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187998",
"author": "the_steven",
"timestamp": "2010-09-30T02:42:12",
"content": "@KuhltwoYou too huh?Many of us also exhibit “mirror writing” with the non-dominant hand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188010",
"author": "NatureTM",
"timestamp": "2010-09-30T03:28:22",
"content": "looking forward to the magnet-helmet hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188011",
"author": "madhatter",
"timestamp": "2010-09-30T03:32:07",
"content": "I’m getting pretty close to getting a TMS machine working! I’ll probably let the internet know if I don’t seizure myself to death…. I’M A REAL LIFE MAD SCIENTIST, YOU’LL NEVER GET ME! BWAhahahahhh ah ha ha ha",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188019",
"author": "Renee",
"timestamp": "2010-09-30T03:52:41",
"content": "@ AndrewAll that realistically proves is that we need better means of measuring the brain. I mean that kinda negates free will if your brain is doing something that involves choice before you think about it. The question being, where did the choice originate from?You can’t simply trace consciousness like a circuit.Daniel Dennett has a pretty reasonable theory of why experiments like that produce that sort of response. It’s called the “multiple drafts theory of consciousness.”In short, at any given time in your brain there can be multiple mental representations going on, all at various stages of revision, buffering or moving to other parts of the brain.When you go to perform a test like the one you mentioned all that’s really doing is taking a local measurement of whatever happened to be in the brain at that time and not the full scope of ones own consciousness.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188046",
"author": "andar_b",
"timestamp": "2010-09-30T06:04:16",
"content": "Not to mention the fact that there is response time involved. There is a rather strong likelihood that the time it took to process ‘decision=finger move’ plus ‘move finger’ would account for half a second -.-",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188048",
"author": "Renee",
"timestamp": "2010-09-30T06:19:36",
"content": "Not to say that the experiments are bunk or anything. They do prove a good point that inner perception about what your motivations are and the decisions and actions you make aren’t always the same.It’s not like you sit back in your head and have full domain over everything. That’s actually part of what the article above is about.Another good example is when someone asks you something and you say “what” as if you didn’t hear them, and then pause to form your answer because you did realize you did hear them.The “what” decision was a more simple one to make, hence it arrived at a behavior first, while the harder work of interpreting what was said rides just behind it.The Multiple drafts theory is just like real drafts. An author can have a first draft, the publisher can have revisions and the author can also have revisions to that revision. So at any given time there can be multiple versions of the same thing.The problem comes when you only focus on say the Publish, the author or the book seller and say “this is where consciousness is!” Because you would be excluding the other valid drafts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188051",
"author": "loonquawl",
"timestamp": "2010-09-30T06:26:50",
"content": "D’Arsonval did TMS ~100 years ago. What is new is the ‘localized’ (~10cm3)effect, possible through good capacitors and computer-designed coils. Although TMS is now present in every major neurological facility, it stil is scarcely understood. There is, for instance rTMS (repetetive TMS) that features repetitive bursts in repetitive cycles, where any change in the triad of influences (direction, frequency of bursts, timing of burst-sessions) brings an unforseeable shift in the results (activation, deactivation, null) for the location concerned, and every location is different.The effects are rather subtle, too, as the usual field strengths used are 80% motor threshold, meaning the field is applied in a motor area of the brain, field is increased until slight twitching is visible, then field is decreased to 80%. This is to counter the effects of varying skull-thickness.What d’Arsonval did was stand inside a huge coil and have an assistant hit the switch. Uncontrolled field strengths but reportedly impressive auras resulted.To answer the question about Migraine and TMS: Important is how fast the magnetic field _changes_, not how big it is in absolute terms. The changing of the field induces small currents that interact with the natural electric goings-on of the brain. No change no induced currents. That is why walking besides an (offline) MRI only makes dizzy at high fields – the only change in field is through the walking. Online MRIs change their fields rapidly, thus inducing currents, and sometimes effecting perceptions like ‘tingling’.Effect on migraine: TMS might start one, and might stop one. Stopping one is more likely, though. Still, migraine patients, epileptics, and a host of other people are usually barred from participating in ‘just for science’ TMS&MRI.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188056",
"author": "Brainguy",
"timestamp": "2010-09-30T06:52:40",
"content": "I Actually get to work with TMS in our prestigious lab =) it’s truly amazing.. A tad dangerous to build in your home though(Small chance of seizure due to repetitive pulses, about 16 cases in 20 years of research(before safety regulations became available))It’s very cool, ask me anything, TMS is my favourite subject =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188059",
"author": "RadBrad",
"timestamp": "2010-09-30T07:07:16",
"content": "There is another similar experiment that can be found by searching for “God Helmet”. Cool stuff!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188063",
"author": "Lex",
"timestamp": "2010-09-30T07:25:12",
"content": "As my physiscs teacher said in a lesson about electromagnets“dont muck around with big magnets cos you might accidentally erase your brain and then be unable to tell anyone about your discovery”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188068",
"author": "tomas",
"timestamp": "2010-09-30T08:03:56",
"content": "@brainguy:asking you anything :)– how do the EM fields compare to those of, um, my cell phone at full broadcasting power?– in rTMS, do you commonly use complex signals or just simple square waves?– do you have any means of moving the coils in space during operation in a repeatable fashion?– did you try/consider rotating the field like persinger does, by alternating between a few coils?– does your lab have a webpage/blog?thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188074",
"author": "Brainguy",
"timestamp": "2010-09-30T08:43:07",
"content": "@TomasQ: how do the EM fields compare to those of, um, my cell phone at full broadcasting power?A: Not. The current in your brain is achieved by a sharp rise and fall of magneticity (0 – +/-3,5 tesla – 0)Following Faraday’s law of magnetic induction. The electromagnetic field of your cellphone is due to radiosignals.Q: in rTMS, do you commonly use complex signals or just simple square waves?A: Repetitive pulses are usually at a set frequency, it would be easy to do a complex signal, but results would be hard to interpret.Q: do you have any means of moving the coils in space during operation in a repeatable fashion?A: I Haven’t heard of robot-arms delivering TMS, the placing usually stays the same during stimulation or only replacing once or twice.Q:did you try/consider rotating the field like persinger does, by alternating between a few coils?A: Not exactly sure what you mean here, but the field can be created by two-coils (single butterfly coil), pinpointing it to allow for deeper stimulation.Q: does your lab have a webpage/blog?A: No, but we do have a bunch of publications in scientific journals (it’s a University Lab).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188085",
"author": "tomas",
"timestamp": "2010-09-30T09:34:34",
"content": "thanks.what i meant by rotating the field reffered to research done by guys like Persinger who used permanent magnets on a rotating platform instead of EM fields and got interesting results.BTW from what i read, in my country most of commercial TMS research is for use in treating depression. electronic drugs anyone?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188093",
"author": "CogScientist",
"timestamp": "2010-09-30T10:51:34",
"content": "@brainguyI worked with TMS on humans too and even built a little single-pulse prototype model for instructional purposes in order to show the differences between the coils (single vs butterfly / Magstim vs. Medtronic) (I’m not the only cogn. neuroscientist in our lab with some rudimentary practical electronic skills, though.)Persingers research is not really well known in the TMS community, but you might want to consider looking it up. I discussed this matter with my professors: It is plausible that the activity of networks can be altered by using small magnetic fields and longer repetitions, but you’d have to be quite accurate in placing the coils.BUT: TMS is very ‘messy’ and all TMS research and applications draws heavily on knowledge about the organization of the networks you are messing with: Don’t think you can just hold this thing to your ‘xxx’ area and improve your ‘xxx’ ability. It’s WAY more complicated than that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188094",
"author": "CogScientist",
"timestamp": "2010-09-30T10:55:01",
"content": "and of course, my last comment wasn’t directed at brainguy, because as every brain scientist, he knows this. …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188096",
"author": "CogScientist",
"timestamp": "2010-09-30T11:00:42",
"content": "Oh and by the way: at least in one of the two devices (I think the Medtronic), you can choose whether you use a sinusoidal or a square wave. Normally you’d use a square wave when regulating current, but of course the magnetic field will not follow the exact attack (rising edge) of the square shape as it gradually builds up. Anyway: You want your magnetic field to change as quickly as possible and thus use a current that rises as quickly as possible. A square wave…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188098",
"author": "ejonesss",
"timestamp": "2010-09-30T11:09:04",
"content": "daenris i was asking because from spring to fall of 2009 i think i was suffering because starting in the spring i saw a strange disturbance and since i had never had seen it before i thought something was wrong.and once every couple days it would happen again.then when i saw an episode of mythbusters where they was testing the movie myth of swerving to shake someone off the car and the one mythbuster saw stars.i researched seeing stars and came across migraine auras and one was close to what i had seen.first i thought weather swings because there was a lot of rainy days then sunny then rainy off and on.the lately as of a couple weeks ago i saw a show on mind control on the history channel using sound waves bounced off the upper layers above the earth and begin putting 2 and 2 together.maybe some kind of conspiracy going on with mind control or other magnetic waves may have been done during that time frame was causing it.this year i had no disturbanceshowever i do get headaches that last all day and they feel like eating ice cream too fast but no auras with them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188101",
"author": "CogScientist",
"timestamp": "2010-09-30T11:15:43",
"content": "The idea of a conspiracy using magnetic waves for mind control is absolutely unfounded, not to say naive. Science is lightyears away from something even close to this. (The same goes for mind-reading in rt-fMRI, EEG, whatever…) All we have is experimental data from meticulously controlled laboratory experiments focusing on individual cognitions.But actually, visual hallucinations in many forms are quite common in people with migraine or other brain related disorders…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188121",
"author": "Jackie",
"timestamp": "2010-09-30T12:47:33",
"content": "I have brain control over you………",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188127",
"author": "CogScientist",
"timestamp": "2010-09-30T13:26:08",
"content": "yes, in a way you do as you made me seeing and understanding that sentence.but that’s pretty lame in comparison to me making you write this initially…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188130",
"author": "Psyc0bob",
"timestamp": "2010-09-30T13:50:10",
"content": "thank you providing me with a new blog.this one just seams like a copy cat lately…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188132",
"author": "mixadj",
"timestamp": "2010-09-30T13:54:47",
"content": "Don’t know if its been done yet but…. bzzt; Jimmy crack corn and I don care; Jimmy crack corn and I don care………….| Sorry but this whole Idea just made me think of that………",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188162",
"author": "Brainguy",
"timestamp": "2010-09-30T15:33:36",
"content": "@CogScientistI checked out the Persinger stuff, all very cool! At first it kinda sparked my bullshit-meter, but there definitely is some hardcore science involved.I’m very interested in your homebuilt Coil, thinking of building my own (there is this rumour of stimulating a single location containing 3 coils in Israel, definitely something worth trying, and I would call it a Triforce coil)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188165",
"author": "Brainguy",
"timestamp": "2010-09-30T15:35:51",
"content": "Coming to think of it, I know someone who is doing research based on Persinger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188181",
"author": "bilbao bob",
"timestamp": "2010-09-30T16:01:29",
"content": ">The idea of a conspiracy using magnetic waves>for mind control is absolutely unfounded, not>to say naive.Guess that generally depends on your definition of conspiracy. In general, if a) it sounds even vaguely promising for use as a weapon (or these days, even as an effective instrument of torture) and/or b) you can show that it can be considered useful for behaviour modification, I can guarantee that someone already has the research grant in process or it has already been funded by the fringe elements of the artists formerly known as darpa.Of course, that’s no more of a conspiracy than any other weapons research. Look at wide-angle Terahertz radar (aka pain fields), already being deployed to select police departments and guard units around the US.After all, direct neural stimulation would never, ever be used to torture people, even if it were incredibly effective. I mean, it’s neuroscience!I can also guarantee that the minute we discover how to build a more convincing polygraph machine using our new knowledge of how the brain works, we won’t do it.And it’s INCONCEIVABLE! that we would start churning out “brain scanners” to be used in detecting witches, or drug dealers, or pedophiles, or terrorists, or those annoying NWO foot draggers – you know, whatever the boogeyman du jour is.Mostly because it’s impossible to go from giant MRI sized systems to small portable units. It’s not like we ever managed to convert building sized computers into ipads, is it?So I have to agree with CogScientist on this one. It’s just laughable, especially right now.All of that aside, the persecuted tin foil hat crowd is not a new phenomenon. There are several well documented accounts of letters from disturbed british citizens complaining about mind control.One guy petitioned for relief, complaining that he was being molested and controlled secretly by his majesty’s government using the newest and most hyped technology of the day, the pneumatic pump (featured in the mid 1700s equivalent of wired magazine, the newspaper) being touted as the solution to solving infrastructure problems throughout the kingdom.People tend to describe their experiences in terms of their world view, and I’m guessing that this can be traced back to concept of being posessed by demons, and certainly it was not new at that time.I suspect that the complaints by ejonesss and the thousands of “putting 2+2 together” folks like him are the result of the incredible variability in how we’re constructed. Physiology is more of a theme than a specification. We vastly underestimate how good nature is at getting the most marginal of designs to function and reproduce… and that tendancy towards mutation is a very good thing.Finally, if we examine the mechanisms for “deja vu” and other somewhat understood common failures/quirks in how we remember, perceive and react to our surroundings, it’s not unlikely that some people are affected by magnetic fields or other phenomena. Luckily (or not), most of us just don’t get to experience these things.Now if you’ll excuse me, I need to go add several layers of mu metal shielding to my tin foil hat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188183",
"author": "bilbao bob",
"timestamp": "2010-09-30T16:04:35",
"content": "So I have to agree with CogScientist on this one. It’s just laughable, especially right now.All of that aside, the persecuted tin foil hat crowd is not a new phenomenon. There are several well documented accounts of letters from disturbed british citizens complaining about mind control.One guy petitioned for relief, complaining that he was being molested and controlled secretly by his majesty’s government using the newest and most hyped technology of the day, the pneumatic pump (featured in the mid 1700s equivalent of wired magazine, the newspaper) being touted as the solution to solving infrastructure problems throughout the kingdom.People tend to describe their experiences in terms of their world view, and I’m guessing that this can be traced back to concept of being posessed by demons, and certainly it was not new at that time.I suspect that the complaints by ejonesss and the thousands of “putting 2+2 together” folks like him are the result of the incredible variability in how we’re constructed. Physiology is more of a theme than a specification. We vastly underestimate how good nature is at getting the most marginal of designs to function and reproduce… and that tendancy towards mutation is a very good thing.Finally, if we examine the mechanisms for “deja vu” and other somewhat understood common failures/quirks in how we remember, perceive and react to our surroundings, it’s not unlikely that some people are affected by magnetic fields or other phenomena. Luckily (or not), most of us just don’t get to experience these things.Now if you’ll excuse me, I need to go add several layers of mu metal shielding to my tin foil hat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188212",
"author": "steve",
"timestamp": "2010-09-30T16:50:29",
"content": "am i the only one who pronounces it “P” “NAS” :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188282",
"author": "Jack",
"timestamp": "2010-09-30T18:55:51",
"content": "All these wasted years in medical science were good for nothing. What makes difference in your brain is feeding it with drugs and alcohol nothing else. If they would make a brainhack that people who are not so good in math and logic would become better I would pay for that for sure. But since they aint have nothing I just spend this lifetime with drinking then blow my brains out :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188756",
"author": "bilbao bob",
"timestamp": "2010-10-01T14:07:45",
"content": "@jackMost people don’t understand the long-term effects of drinking on the way the brain works. It’s not that different from the effect of smoking on the longs. You can smoke a cigarette once or thrice a year and not accumulate long term damage. You cannot do it a few times a week or more and not expect long term damage.Drugs are a different story (well, actually the same story) but I’d think it was obvious that any kind of substance that creates an “altered state” will do so by affecting the chemistry of your brain. Same for Alcohol, or worse yet, being smitten in love and dumping all manner of low-level insanity causing hormones into your blood stream. I’d rather try to reason with a junkie than a 17 year old in love…Anyway, you know the drill: Lots of Vitamin C, some bright sunshine, a little exercise and a gun. I’ve seen it reverse the effects of years of solder-fume inhalation and depression brought on by weeks of solitary hacking more than once, and it even gave one young man a chance to leave electronics and become a very happy park ranger with a very attractive wife who was fun to be around if you didn’t care about logic and math.Now get out there and live a little, and stop worrying about math and logic. After all, math and logic never got anyone laid – with the sole exception of Dick Feynman – and that even includes Charles Babbage and Grace Hopper!PS – Good luck with the dopamine replacement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190826",
"author": "steeve",
"timestamp": "2010-10-04T19:12:05",
"content": "This is a completely stupid post. First, TMS has been around for decades now. It is not new at ALL. Second of all, they use not magnets buts COILS. They are pulsed with a high current for very short time, generating quick rising magnetic fields, because what matters is dB/dt, the change in magnetic field over time, not the magnetic field strength itself. You can be sitting inside 7 Tesla and not even notice. Only when you move your head quickly you will feel dizzy. However, as I said, these TMS devices make use of really high powered components, nothing you could do at home with a photo flash capacitor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191423",
"author": "nak",
"timestamp": "2010-10-05T10:07:39",
"content": "If anyone who thinks they’re smart about TMS devices and wouldn’t mind spying/giving constructive criticism on an attempt at home brewing a monophasic TMS machine, please email me: uberscientist[at]gmail.comThanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "306507",
"author": "Orgone",
"timestamp": "2011-01-16T20:39:07",
"content": "TMS is a very promising technology to help heal brain injuries. I suspect that TMS devices are easy to build and probably, they are not dangerous when used intelligently.That could be an interesting hack.This story reminds me of another I heard a while ago.A few years ago neuroscientists were able to implant electrodes in a cat’s brain to allow them to remote control its movements while it was walking. However, to do that required brain surgery.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.145646
|
||
https://hackaday.com/2010/09/29/dreamcast-vmu-meet-ipod/
|
Dreamcast VMU, Meet IPod
|
Mike Szczys
|
[
"ipod hacks"
] |
[
"6th generation",
"dreamcast",
"memory",
"sega",
"vmu"
] |
We’d bet you never had a Dreamcast Visual Memory Unit, but if you can find one now
it can be turned into an iPod
(
translated
). The
VMU
was originally a memory card for the not-so-popular gaming console that put an LCD screen right in your controller. When you weren’t at home you could take it with you and play mini-games. This version lacks its original guts, which have been replaced with a 6th generation iPod nano. The screen is just a bit small for the opening so a frame of white tape was applied as a bezel. The sleep button has been extended through the cover for the VMU connector. It seems there’s a gaping hole in the back of the case, but after seeing the ultrasonic knife used to cut away the plastic we don’t care. We’ve embedded video of that tool after the break.
[youtube=http://www.youtube.com/watch?v=BcA2qQvGoF8]
[via
Reddit
]
| 55
| 50
|
[
{
"comment_id": "187817",
"author": "UltraMagnus",
"timestamp": "2010-09-29T20:11:21",
"content": "Let me be the first to ask, where can you buy one of those vibroscalpels?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187818",
"author": "spiritplumber",
"timestamp": "2010-09-29T20:14:15",
"content": "Wow. I loved my dreamcast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187819",
"author": "ear0wax",
"timestamp": "2010-09-29T20:18:38",
"content": "That looks more like a hot knife, look at the plastic in the first cut, its melting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187820",
"author": "MS3FGX",
"timestamp": "2010-09-29T20:20:25",
"content": "“We’d bet you never had a Dreamcast Visual Memory Unit”Speak for yourself. I used to wear mine around my neck when I went out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187821",
"author": "mowcius",
"timestamp": "2010-09-29T20:24:54",
"content": "ear0wax. That’s because the blade is vibrating very very quickly which heats up the plastic.Another note. That is the best use of one of those new nano thingies I have seen yet. Never could quite work out what they are good for. :DMowcius",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187823",
"author": "osgeld",
"timestamp": "2010-09-29T20:28:52",
"content": "I still have 4 vmu’s to go with my 4 dreamcast controllers",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187824",
"author": "Josh",
"timestamp": "2010-09-29T20:29:25",
"content": "Just found my DC in a box when we moved last month. Got 3 of those VMUs. Not that I need to gut one for this, but they are pretty cool little units. You can program their internal microcontroller too, or just load homebrew games on it. The hard part is getting your Dreamcast on the internet; DC broadband adapters are expensive and hard to find.http://oreilly.com/pub/h/3836",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187825",
"author": "Josh",
"timestamp": "2010-09-29T20:32:03",
"content": "Oh – and found the link for dev toolshttp://www.maushammer.com/vmu.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187826",
"author": "Pilotgeek",
"timestamp": "2010-09-29T20:33:56",
"content": "Mike, you make a lot of generalizations. I currently have 3 VMU’s sitting in my room.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187827",
"author": "Everett",
"timestamp": "2010-09-29T20:34:29",
"content": "Where can I buy that ultrasonic knife?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187829",
"author": "Colecago",
"timestamp": "2010-09-29T20:37:08",
"content": "I didn’t believe the vibraknife at first, thought it was a hot knife, but a little searching reveals they do exist!http://www.sonotec.com/ecutter.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187832",
"author": "brennanthl",
"timestamp": "2010-09-29T20:44:46",
"content": "“We’d bet you never had a Dreamcast Visual Memory Unit”Well, you would LOSE that bet. I have probably 10 of them laying around. They are great little units and just one of the reasons why I miss Sega consoles. HAD fail.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187838",
"author": "Rachel",
"timestamp": "2010-09-29T20:54:29",
"content": "@JoshYou can use the original POTS modem. Simply connect it to a computer with another modem, and a battery to power the line. Then you can easily spoof phone numbers and route the packets over the internet.I love the Dreamcast and its little VMUs. It would be a shame to waste one on an ipod. I’d much rather see a mod to replace the con cell batteries with a rechargeable Li+. Those things were awesome, but they drained batteries like crazy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187839",
"author": "Sodor",
"timestamp": "2010-09-29T20:54:33",
"content": "“We’d bet you never had a Dreamcast Visual Memory Unit”My DC and VMU’s work fine, I have like 3 VMU.I play Quake 3 arena (free for all and CTF) every Saturday with other three friends since 2004, good game and great game system.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187846",
"author": "chris",
"timestamp": "2010-09-29T21:06:00",
"content": "@Colecagothose ultrasonic knives have big power supplies.but anything with that much cuttingness is awome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187856",
"author": "Eric",
"timestamp": "2010-09-29T21:17:44",
"content": "The Dreamcast was plenty popular, it was just timed wrong. It lost all sales momentum when the PS2 came out, instead of the two consoles competing.I still have one of the VMUs too, although the DC it went with died years ago, sadly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187857",
"author": "invi[tus",
"timestamp": "2010-09-29T21:22:09",
"content": "Love the cutter, after some research I found thishttp://www2.enekoshop.jp/shop/e-shop_plascom/item_list?category_id=76146just shy of 400 USD according to my currency converter.I want one now =\\",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187858",
"author": "osgeld",
"timestamp": "2010-09-29T21:22:44",
"content": "“Simply connect it to a computer with another modem, and a battery to power the line.”Ive connected dozens of modems to modems and never needed a battery, is the DC different Rachel?(its just a pita to run back n fourth banging in at commands but course that could be done in software)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187860",
"author": "lee",
"timestamp": "2010-09-29T21:24:22",
"content": "anyone know how much the knife costs? I see a 45W version that should be obtainable!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187875",
"author": "Kevin",
"timestamp": "2010-09-29T21:42:43",
"content": "There’s a cd image you can download and burn to load the vmu games from the DC itself. I’ll have to see if I stll have the link at home.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187887",
"author": "Srmoska",
"timestamp": "2010-09-29T22:07:08",
"content": "“We’d bet you never had a Dreamcast Visual Memory Unit”FAIL. I have a working VMU and a working dreamcast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187886",
"author": "Lion XL",
"timestamp": "2010-09-29T22:07:34",
"content": "OK At work and I can’t see the video, but exactly why is that gaping whole in the back? whats its puprpose?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187898",
"author": "f8l_0e",
"timestamp": "2010-09-29T22:31:57",
"content": "I had two VMU’s myself. They were a great concept. Picking plays in a the football game was cool and I’m not a football fan.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187903",
"author": "Chris",
"timestamp": "2010-09-29T22:39:32",
"content": "Way cool, just think how many fingers you’ll lose using one of those knives!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187904",
"author": "Arksardan",
"timestamp": "2010-09-29T22:41:55",
"content": "Yup, add me to the list of people with VMUs – and a region-free Dreamcast with two Japanese DDR pads and games somewhere in a box here…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187908",
"author": "fred fred burger",
"timestamp": "2010-09-29T22:48:31",
"content": "lol at vibroscaples…gb2 kotor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187909",
"author": "Gosh",
"timestamp": "2010-09-29T22:49:04",
"content": "I love my Dreamcast and still play Proejct Justice from time to time. The VMUs were, IMO, an awesome idea that I was pretty baffled never caught on past the DC. This looks like a great hack to try with one of the 8 VMUs I still have lying around. Only negative I can think of is the VMU batteries, which seemed to drain at a ridiculous rate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187910",
"author": "Gosh",
"timestamp": "2010-09-29T22:50:04",
"content": "Guess I should read the total post before posting – VMU battery was gutted along with everything else >.<",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187912",
"author": "cpmike",
"timestamp": "2010-09-29T23:00:33",
"content": "Yeah bad assumption, any of us who had DCs of course had the nifty VMUs. Loved my smoked grey one, but I had 3. I just hated how quickly they killed batteries…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187920",
"author": "UltimateJim",
"timestamp": "2010-09-29T23:13:40",
"content": "Hah that’s awesome. Would hate to nick a finger though….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187925",
"author": "Tim",
"timestamp": "2010-09-29T23:20:07",
"content": "Funny that the ultrasonic actually drowns-out the audio in the video. You can hear the ambient noise go down when the knife goes “hot”…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187949",
"author": "nyder",
"timestamp": "2010-09-29T23:56:07",
"content": "2 dreamcasts, plenty of VMU’s and other items.Still wish i had the keyboard & vga adaptor from my first dreamcast.Cool little hack though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187986",
"author": "digiswv",
"timestamp": "2010-09-30T01:58:50",
"content": "I beg to differ! The dreamcast was very popular. But it had a short lifespan due to finger-in-ass+nose-easy piracy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187988",
"author": "Rachel",
"timestamp": "2010-09-30T02:00:54",
"content": "@osgeldThe battery mimics the voltage on phone line for compatibility. The modems might not actually need this voltage to work, but some might use it to detect if it’s plugged in. I have a couple cordless phones which refuse to operate unless they sense this voltage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188026",
"author": "cde",
"timestamp": "2010-09-30T04:34:21",
"content": "If you had a dreamcast, you most likely had a vmu. No VMU, no saved games. It was more or less a requirement. Unless you got one of the third party memory cards eventually.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188064",
"author": "Johnnymoha",
"timestamp": "2010-09-30T07:25:57",
"content": "HAD, chances are if people are visiting this site they have probably owned a DC and a VMU. My favorite console I’ve owned. R.I.P. DC you died much too young :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188086",
"author": "Pup",
"timestamp": "2010-09-30T09:37:53",
"content": "Excuse me, HAD, but just because Dreamcast wasn’t mainstream enough doesn’t mean it was unpopular.It’s a crying shame that a VM had to die to make an ipod look good…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188092",
"author": "Monkey_Beast",
"timestamp": "2010-09-30T10:47:00",
"content": "I have a look around. I think this is that actual one in the video.http://en.item.rakuten.com/be-j/933000/Looks to be a Japanese company that make the units. Not cheap, but I think if you do a lot of cutting, it would probably pay for it self.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188095",
"author": "rbjacobs",
"timestamp": "2010-09-30T10:58:04",
"content": "I love how everyone’s discussing the knife and the VMU, but no-one seems to care about the iPod-in-the-VMU thingy!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188164",
"author": "SelfSilent",
"timestamp": "2010-09-30T15:35:15",
"content": "ZOMG! you managed to put a new smaller thing inside a larger older thing, you must be so proud.If it wasn’t for the “heads up” on the knife and not using an Arduino, this hack would have been pointless.I’m off to put a PS3 inside an RM Nimbus.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188169",
"author": "Gene",
"timestamp": "2010-09-30T15:38:53",
"content": "How strange is it that I have an used VMU sitting on my desk. It just seems wrong to gut it and just use the shell though.As for the hole in the back, it’s where the battery cover goes. I’m not sure why they didn’t just glue on the cover.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188232",
"author": "Cheswick",
"timestamp": "2010-09-30T17:24:44",
"content": "Now we just need instructions to build one of those sweet vibro knives for less than 400 bucks…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188245",
"author": "blue carbuncle",
"timestamp": "2010-09-30T17:55:38",
"content": "I never put mine away. Seaman would die and I’d never hear the end of it from him lol.The VMUs were awesome, especially for football games where you could actually pick your play in secret and not giving your buddy one of four play options your were gonna run lol. WinCE compatible, I always expected more to be done with the little unit that could, but GDROM-sigh. And yes Josh, I’m saddened that Lik Sang or some other didn’t build a knock off ethernet adapter :(I still have some extra parts laying around for the DC so if some hacker on here wants them shoot a message in the comments :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188414",
"author": "blue carbuncle",
"timestamp": "2010-09-30T22:47:49",
"content": "nyder I have a DC keyboard in the basement if you want it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188585",
"author": "dreamcastruledwtfyoutalkingabout",
"timestamp": "2010-10-01T05:40:54",
"content": "dreamcast was a hugely popular console for people that actually played games and it was very innovative for its time i played my DC til it fried and would no longer boot games, DC ruled, unreal tournament and quake 3 endless hours on it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188702",
"author": "Jess",
"timestamp": "2010-10-01T11:50:04",
"content": "DIY piezo knife? That sounds like a good project… does this require any special/fancy element? I would think you just have to mount it to an exacto knife blade or something, then damp the vibration so it can be held?Time to research beefy piezo’s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188710",
"author": "Jess",
"timestamp": "2010-10-01T12:10:03",
"content": "So the element is about 40 bucks (ebay prices). I was looking to see if the element was this “bolt clamped langevin” transducer, and g-images pulled up the knife in the video… D:http://www.honda-el.co.jp/en/industry/200903220033.htmlHere is the site with the element from ebay and specs:http://www.steminc.com/piezo/SMBLTD45F28H.aspThe price jumps up quickly for stacked type units.. these are also annoyingly large.. 45mm :(Anyone got a few Kv to throw at one of these?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188974",
"author": "Hitek146",
"timestamp": "2010-10-01T21:13:56",
"content": "I remember reading about a guy that developed an interface to connect a standard Realtek RTL8139 PCI card to a Dreamcast using a custom FPGA circuit he designed, allowing a standard card to be plugged into the Dreamcast to allow it to connect to an Ethernet network just like the Broadband Adapter. This was a few years ago, and I can’t seem to find a trace of the web site now, but I remember that he had etched his own PC boards(fully documented with photos) and had two working prototypes…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189114",
"author": "Clueless_Being",
"timestamp": "2010-10-02T05:23:55",
"content": "i have vmus, wouldnt put ipods in any of them",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189761",
"author": "DanAdamKOF",
"timestamp": "2010-10-03T10:21:48",
"content": "@Hitek146, took one google search to find it :Phttp://f17.aaa.livedoor.jp/~takotako/g2bus.php",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.270166
|
||
https://hackaday.com/2010/09/29/tiny-cray-1-courtesy-of-an-fpga/
|
Tiny Cray-1 Courtesy Of An FPGA
|
Mike Szczys
|
[
"classic hacks"
] |
[
"cray-1",
"fpga",
"Spartan-3E",
"supercomputer",
"xilinx"
] |
[Chris Fenton] spent a year and a half
constructing a 1/10th scale Cray-1 reproduction
. The
famous supercomputer
was meticulously modelled in a field programmable gate array for a “nearly cycle-accurate” reproduction. [Chris’] hardware of choice for the project is a Xilinx Spartan-3E 1600 development board, using 75-80% of the available resources. The finished product runs at 33 MHz and is missing a few functions but it sounds like they don’t affect code execution. We like that he didn’t stop with the processor implementation, but also took the time to produce a case for the development board that looks just like the original.
Unlike the
Atari 2600 FPGA project
, we’re not quite sure what we’d use this for. But that doesn’t diminish the excellence of his work.
| 21
| 21
|
[
{
"comment_id": "187801",
"author": "F.",
"timestamp": "2010-09-29T19:19:29",
"content": "Awww, aren’t you the cutest little supercomputer, aren’t you? Yes you are!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187802",
"author": "Jonathan Badger",
"timestamp": "2010-09-29T19:20:43",
"content": "Why 33Mhz rather than the original 80Mhz? Is this a limitation of the FPGA used? Granted, even the original speed is no longer impressive by today’s standards, but given that he went to the trouble of making the detailed case, I’m surprised he didn’t go for the original speed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187803",
"author": "biozz",
"timestamp": "2010-09-29T19:21:06",
"content": "can it do the amazing power of the 136MFLOPS that the original can do?its unsurpassed my today’s *cough*pocket*cough* COMPUTERS!i know the cray XT5 can do over 1 PFLOPS",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187836",
"author": "SomeEvent",
"timestamp": "2010-09-29T20:51:57",
"content": "Great looking project. I’m not sure you will find a copy of the OS but lets hope I’m wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187840",
"author": "charliex",
"timestamp": "2010-09-29T20:56:06",
"content": "Probably cost Jonathan, the fpga’s get spendy really fast above those levels.Awesome project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187865",
"author": "George Johnson",
"timestamp": "2010-09-29T21:30:19",
"content": "I like it! That’s a well executed project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187876",
"author": "NatureTM",
"timestamp": "2010-09-29T21:44:28",
"content": "That is just plain awesome. I feel bad about his troubles finding software, hopefully being featured on HaD will help something surface.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187891",
"author": "Abbott",
"timestamp": "2010-09-29T22:18:08",
"content": "Actually thats a good question. at least for my Xilinx Spartan-3E dev board (500K gates), you can add a different clock chip, up to and exceeding 100MHz, (stock is 50MHz) i think, but dont quote me. I haven’t had a need to yet. Might in the future though, who knows",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187895",
"author": "cf",
"timestamp": "2010-09-29T22:24:34",
"content": "This is Chris (the guy who made that).@Jon: It only runs at 33 MHz because the multiplier implementation is slow. I was recently able to modify it to use the built-in multiplier blocks, and it now runs up to 50 MHz. Spartan3 chips are just slow, and the Virtex chips cost a small fortune.@Biozz: It actually does support vector chaining, so it an peak at up to 3 FLOPS/cycle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187899",
"author": "cf",
"timestamp": "2010-09-29T22:34:23",
"content": "@Abbott – I’m not sure how much you know about circuit design, but the clock speed is determined by the maximum delay path. The critical path in my initial design was through the floating-point multiplier unit, as I was attempting to do 8 x 48-bit ADDs + a mux or two in the same cycle.At 50 MHz, I think the critical path is the instruction-issue logic, which needs to perform quite a bit of conflict-detection.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187900",
"author": "svofski",
"timestamp": "2010-09-29T22:35:00",
"content": "For the entire design to work at a certain frequency, all signals must always set in time before the next clock cycle chimes in. The set times depend on the original design complexity, this particular Verilog/VHDL description, synthesis/optimization settings and on the hardware.All modern FPGA’s have PLL or DLL modules that allow to get almost any arbitrary frequency from a limited selection of external fixed clock sources. So it does not really matter if the clock chip onboard is 100 or 50MHz, you can get up to 300MHz from either.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187917",
"author": "mewthisblows",
"timestamp": "2010-09-29T23:10:14",
"content": "The real question is: Does the cooling system heat the seats surrounding the cray like it did in the original? ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187991",
"author": "D_",
"timestamp": "2010-09-30T02:14:53",
"content": "I’m 16 years post stroke. From the start I always consciously tried to use my affected hand to to tasks, but yet there’s plenty I can’t do yet, because the motor control is still lacking. This my get those who can’t even try to use their effected limb because of the injury, I just can’t see it restoring lost function.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188023",
"author": "MauiMaker",
"timestamp": "2010-09-30T04:25:41",
"content": "Very cool!! Back in ’83 I worked at Digital Productions in LA and we used one of the Cray X-MP versions to make The Last Starfighter. I remember taking naps on the beast…. And the massive cooling tower & power converters it required.Maybe some of the old DP folks might have code stashed away.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188027",
"author": "cde",
"timestamp": "2010-09-30T04:37:02",
"content": "@D_ wrong article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188128",
"author": "El Gordo",
"timestamp": "2010-09-30T13:36:44",
"content": "@cde: I’ve seen this a lot here lately. guessing database bug.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188133",
"author": "lwatcdr",
"timestamp": "2010-09-30T14:05:39",
"content": "How much memory does it have?Just wondering because I thought that it said in the article that it only had 4k words which is probably not enough for a real os.Interesting.After reading up on the Cray I got to wonder what would a CRAY one do if we ramped up the clock speed to to a modern 3.3 Ghz.The sad thing is that it looks like per core an I7 will still beat it :(Still way cool. I think you should make two more and give one to the folks working on GCC and on to the folks working on NetBSD.You will get your OS and compiler then :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188140",
"author": "David",
"timestamp": "2010-09-30T14:26:12",
"content": "I’d gathered that the wire lengths of the original Cray were set by the length of time it took for an operation to complete so that the previous operation would finish in the time it took the next one to travel down the wire. i don’t think only increasing the clock speed would work in that sort of tuned environment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188156",
"author": "J. Swift",
"timestamp": "2010-09-30T15:20:22",
"content": "@David yes, that’s one of the amazing things about the Cray machines. Seymour Cray was one of those one in a million engineers who was just an order of magnitude better than anybody else, and his designs show it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "425725",
"author": "Raisin",
"timestamp": "2011-07-30T10:46:23",
"content": "@J. Swift: Don’t forget, that this tiny Cray is 10 times smaller, so the wires are also 10x shorter, therefore this new design clock could be 10x faster before reaching the practical limits. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6449498",
"author": "Jefferson Paredes",
"timestamp": "2022-03-22T02:15:43",
"content": "What is this? a Supercomputer for ants ?!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.332348
|
||
https://hackaday.com/2010/09/29/thinner-client-using-stm32-and-ntsc-monitor/
|
Thinner Client Using STM32 And NTSC Monitor
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"framebuffer",
"ntsc",
"stm32",
"thin client"
] |
[David Cranor], along with [Max Lobovsky’s] help,
managed to build a thin client
that uses an NTSC television as a monitor for only $6. This is his first foray into the world of ARM architecture and he has vowed to never use an AVR again. The powerful little chip uses timers to manage sync and DMA to transfer the full 480×240 frame buffer to the screen. Overclocked at 80 MHz there’s a lot of potential in this little board and he plans to take on the challenge of a full-color display for his next trick.
| 30
| 30
|
[
{
"comment_id": "187778",
"author": "Taylor Alexander",
"timestamp": "2010-09-29T18:32:04",
"content": "Yeah, I’ve been buzzing a bit about this in the comments myself lately, but I feel like it doesn’t hurt to say it a bit more.I’ve been looking at ARM too lately (Atmel SAM7 and SAM3… if the SAM3 ever comes out!) and really, I just see no reason to use an AVR ever again.I’m building my first ARM board now, and as you can see from the article’s picture, they make some pretty easy to manage packages. The sam7 comes in as little as a 48 pin package, and requires just about the same number of external components as an ATMEGA. For that you get a 32 bit databus, peripherals that can be assigned to a few different pins, interrupts on every pin, a 55MHz clockspeed, and built-in USB, all for the same cost as an AVR.Go to the Eagle website, grab some Atmel ARM footprints from their footprints section, look up an Olimex schematic to copy, and go whip up a board!The code is pretty similar to an AVR, and there are some good examples online. With true USB you can have it show up as a COM port to start (there are examples for that online) and then move to USB bulk transfer or whatever else when you’re comfortable.The more I look at them, there just isn’t any sense in using an AVR anymore, unless you need something smaller than this.As soon as I finish my eagle schematic, I’ll put the files up here for people to grab, since I wasn’t able to find any open source hardware designs with those chips, yet. Though I just realized I think some MAKE controller might use an ARM.-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187783",
"author": "the steven",
"timestamp": "2010-09-29T18:42:49",
"content": "H.F.S.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187785",
"author": "UltraMagnus",
"timestamp": "2010-09-29T18:45:53",
"content": "great, but what is the development environment like? I can’t find any ARM dev tools for OSX or linux.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187786",
"author": "psymansays",
"timestamp": "2010-09-29T18:53:09",
"content": "This is a great project, showcasing the ARM chip’s strengths. As an ARM7 user (NXP LPC2000-series), I agree with the author that it’s superior to the AVR MCU’s.Of course, the DIP package of the AVR chips does still leave it with a place as a quick-cheap-and-dirty processor for projects where that’s what you need. It’s just nice to see someone not using the Arduino for everything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187789",
"author": "psymansays",
"timestamp": "2010-09-29T18:55:01",
"content": "@UltraMagnusThere’s a full gnu toolchain for the ARM chips, for linux, and for windows. I don’t use mac, but I wouldn’t count it out. You can code in vi or notepad, if you’re hard-core, or you can set up the Eclipse IDE to work with C code, as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187792",
"author": "Taylor Alexander",
"timestamp": "2010-09-29T18:56:08",
"content": "@UltraMagnusextremely quick google search turned up this:http://www.gnuarm.com/Also look at using a RTOS from Segger and others. I’ve heard those are really awesome to work with.Also, here’s a nice example code page I found:http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/index_at91.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187793",
"author": "Chris",
"timestamp": "2010-09-29T18:58:08",
"content": "Great little project!@UltraMagnus: I’m pretty sure ARM development is very well supported under Linux. I tinkered with an ARM MCU some time ago, and used the GNU ARM Toolchain for Windows; but it’s available for Linux too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187795",
"author": "darkore",
"timestamp": "2010-09-29T19:01:36",
"content": "The STM32 is a GREAT chip, with a lot of potential. Combine it with something like this :http://www.futurlec.com/ET-STM32_Stamp.shtmland you’ll have an extremely powerful prototyping platform for only $25. And remember, it already has a serial (RS232) bootloader in an internal ROM, so it doesn’t need any special hardware for programming. Also, ST provides a very complete support libray for their STM32 chips. That’s a very hard to break deal. Yes, AVRs can wait :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187796",
"author": "lwatcdr",
"timestamp": "2010-09-29T19:04:36",
"content": "That STM32 Stamp looks great. Wow. What a deal",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187798",
"author": "David",
"timestamp": "2010-09-29T19:06:58",
"content": "Hey guys, glad you like the project!I used this skeleton project to get started:http://github.com/randomskk/STM32_SkeletonProjectIt includes peripheral libraries, makefile, and python programming script for the stm32f series.You need to get the arm-eabi toolchain, which can be obtained from codesourcery or ripped out of the maple (arduino clone) IDE.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187799",
"author": "nes",
"timestamp": "2010-09-29T19:09:47",
"content": "@UltraMagnus: Several flavors of ARM are supported natively by gcc. Just Google @UltraMagnus: instructions for building a cross compiler. GCC and Linux itself (even full distros like Ubuntu) will happily run on an ARM, albeit you need one with external RAM and some sort of storage medium.Beagle, WRT, Pandora, Dingoo, Chumby are all examples of ARM computers well supported by cross compilers.If you still have a parallel port, then Wiggler in conjunction with GDB gets you a totally free hardware debugger too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187800",
"author": "svofski",
"timestamp": "2010-09-29T19:13:32",
"content": "arm-eabi toolchain is a part of devkitpro.org, if I’m not mistaken. I use same compiler for GBA and for LPC2100. I didn’t swear to never look back at AVR, but Atmel did its best to kill itself. After my little stash of ATmegas runs out, there’s nothing to look back at anymore!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187804",
"author": "psymansays",
"timestamp": "2010-09-29T19:26:48",
"content": "Try playing ttyquake on it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187809",
"author": "osgeld",
"timestamp": "2010-09-29T19:57:10",
"content": "oh avr’s still have their places, if your looking for power they are not it, but if you need a 8 pin dip to toggle some pins …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187815",
"author": "fluidic",
"timestamp": "2010-09-29T20:07:59",
"content": "AVR’s are fine if you want a quick-and-dirty solution to a “light lifting” problem. They’re not appropriate for everything, any more than anything else is appropriate for everything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187834",
"author": "brennanthl",
"timestamp": "2010-09-29T20:50:38",
"content": "What can this ARM do that a PIC32 can’t? I see all the comparisons to AVR but what about the different PIC series’ ?Side note, I LOVE boards that have the micro turned 45 degrees. Tasty!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187842",
"author": "SNAFU",
"timestamp": "2010-09-29T20:59:28",
"content": "what about this kit for $10…http://www.st.com/mcu/contentid-133-110-STM32VLDISCOVERY.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187850",
"author": "NoX",
"timestamp": "2010-09-29T21:09:52",
"content": "Great project!!I have a STM32 Olimex board sitting around and this project will help me a lot to re-start my own project. Started it about a year ago, but abandoned it due to lack of time…One thing that I found difficult with the STM32 was setting up the development environment. I started using Codesourcery Lite, but I’m not comfortable using a propietary compiler…Recently thanks to the Open-BLDC project (http://open-bldc.org/wiki/Open-BLDC) I learned how to compile GCC to make it work with Cortex-M3Other thing that I found very difficult was to make a USB serial terminal…And the SkeletonProject will be also very helpful!Thanks!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187901",
"author": "svofski",
"timestamp": "2010-09-29T22:36:28",
"content": "AVRs are fine if you can buy them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187966",
"author": "RJ Ryan",
"timestamp": "2010-09-30T00:48:43",
"content": "IMHO for someone familiar with AVR, the best way to get into ARM programming is the LeafLabs Maple (http://leaflabs.com). It has an 80MHz STM32 CPU. I just started playing with them a month ago, and I don’t think I’ll ever go back to AVR (except for very specific circumstances).The Maple is in the Arduino form-factor and all their development tools make it easy to convert your Arduino code and libraries to it. The thing is a powerhouse in a really awesome package.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187995",
"author": "Ken",
"timestamp": "2010-09-30T02:34:48",
"content": "Big fan of AVR here.Two reasons not to throw away your AVR stuff:Directly interfacing with 5V hardware.Cost sensitive applications (cheaper cost per MCU, and DIP packages allow single sided PCBs).But terms of performance/cost ratio, nothing touches the ARM. I’ve been eying the NXP stuff and I think I am going to try out some of their offerings.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188012",
"author": "Drone",
"timestamp": "2010-09-30T03:37:52",
"content": "Vowing to never use “such and such” part ever again… is a sign of bad Engineering. All options should be on the table at all times. This isn’t to say using a point-contact transistor in-place of a 2N2222 is a good idea. But keeping an open mind is very important.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188071",
"author": "darkore",
"timestamp": "2010-09-30T08:25:16",
"content": "@Ken, you can do direct interfacing with 5V hardware using the STM32, most of its I/O lines are 5V tolerant. In some very rare situations you’ll need a buffer to go from 3.3V to 5V.And yes, I completely agree that there is a very good place in this world for AVRs, but I think that right now this only applies to DIP AVRs (and tinys). If you go to some sort of QFP variant, there are less and less reasons to choose an AVR (or other similar 8 bit MCU) over an ARM (especially a Cortex-M3, which managed to make things easier for the programmer when compared to the old ARM7/ARM9 series).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188088",
"author": "lekernel",
"timestamp": "2010-09-30T10:27:46",
"content": "As much as I hate ARM for going after open source clones of their cores (which this project doesn’t really use anyway, most of the tricks are done with the STM32 peripherals), this is a very cool little project.In the same vein, there is alsohttp://humaneinfo.com/using an AVR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188220",
"author": "bilbao bob",
"timestamp": "2010-09-30T17:10:43",
"content": "As the token “that guy” on hackaday, I have to say that he built was just a serial terminal.Calling this a thin[ner] client is a stretch – running links or lynx or any other terminal based web browser does not a thin client make. Make it into an xterm, and you’ll have something. Process VNC or RDP data streams… but ascii text is ascii text, and this makes it a simple terminal.Having said that, this work is nothing short of absolutely wonderful and I applaud it. Very, very good!Hackaday seems to be on a roll here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188290",
"author": "David",
"timestamp": "2010-09-30T19:14:44",
"content": "@bob: look at xvsmfbg in the github repo!reading full x framebuffers was actually the first functionality that we had working, but it was kind of a hack and got optimized out of the code as we built the text display on top of the device’s framebuffer.it’s not much of a jump to bring it back and do it right……",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188370",
"author": "keystoneclimber",
"timestamp": "2010-09-30T21:21:27",
"content": "What’s up with all these “vows” to never use AVR again? Ken started to hit the point and Drone is also on the right track, but I think this is a point that really hits home: “oh avr’s still have their places, if your looking for power they are not it” Exactly! Concern over power consumption is one of the primary reasons to use and AVR over an ARM. Battery or solar powered designs will usually be much better served with the ultra low power capabilities of the AVRs or PICs for that matter. Hey, if you’re always plugging it into the wall then who care, but if you really don’t need all those clock cycles sucking the juice, why do it? I think I’ll keep all those 24, 16 and 8 bit micros in my back pocket for the applications that they would best serve.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189223",
"author": "noah vawter",
"timestamp": "2010-10-02T12:02:57",
"content": "Hey guys, anyone who says “never X again” is trolling.Anyway! Does anyone know a good Diopsis dev boards? For me the only thing that matters is floating-point performance at this point, and the market is very divided. I don’t like highly-integrated dev boards with lots of crazy peripherals, like wired ethernet.ARM is great, but is older than AVRs in reality. STM32 is a rather mature CPU architecture with a few big-boy peripherals on it. I worked with David on this and his previous microcontroller terminal project. The reason this hack could happen is because of the DMA controller in the STM32. Getting all the timing right using the AVR in the previous version was super-obnoxious.So the DMA controller in the STM32 is nice but also very convoluted. I’ve used other DMA controllers in the Amiga, PC, PowerPPC, etc., but this one has an accumulation of cruft. It’s very far from modular… You really have to follow quite a few bus diagrams to figure out if you can move data from one location to another.If Atmel can integrate DMA and other technology into its line as well as its flash memory and other peripherals, they’ll have a solid product. Me, I want floating-point in a micro-controller… and I think the next-best thing is the FPU core at opencores…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191926",
"author": "bilbao bob",
"timestamp": "2010-10-06T02:36:04",
"content": "@DavidI’m guessing the project owner will read this again… but seriously, an 800×600 frame buffer, bluetooth/USB keyboard/mouse and ethernet board would be cool as cool can be.But it’s a bit more work than an x-window picture frame. Still, good job on this one!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "195467",
"author": "ben",
"timestamp": "2010-10-12T01:05:25",
"content": "Anyone else have the schematic not render properly? I’m using eagle 5.10, but it nothing is aligned for me.Also, looking at the code, where is the timing for the front/back porch actually done? I see the frame buffer being updated, but where is the actual ntsc output?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.401253
|
||
https://hackaday.com/2010/09/29/lazarus-64-not-actually-64-bit-but-still-blows-our-minds/
|
Lazarus-64, Not Actually 64 Bit But Still Blows Our Minds
|
Jakob Griffith
|
[
"home entertainment hacks"
] |
[
"74H",
"AVR",
"console",
"game",
"ic",
"logic",
"video"
] |
Lazarus-64, breadboard game system; certainly
sounds like something from the 1980s
. We were surprised to find out not only the name, but also all the ICs used are only those available from the retro age of 30 years back (Save for the AVR controlling everything, of course). Even more amazing is how it has 256 flicker free color support, while not using NTSC chips. Which Goes to show that even if there are common solutions out there for cheap, building or compiling your own is not necessarily a bad thing or a waste of time.
There is a whole lot more to Lazarus, including double buffering and VMS, but sadly it appears progress has stopped on the Lazarus-64 breadboard game system, with the last update being last year. But we can still bask in the amazing glow that currently is.
| 16
| 16
|
[
{
"comment_id": "187764",
"author": "c0olcast",
"timestamp": "2010-09-29T17:36:28",
"content": "Some one pls, mirror this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187768",
"author": "nah!",
"timestamp": "2010-09-29T17:54:51",
"content": "way too much traffic",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187822",
"author": "Tiago",
"timestamp": "2010-09-29T20:28:08",
"content": "The creator of this babie is an active forum member at avrfreaks and he says he wants to keep developing it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187830",
"author": "goldscott",
"timestamp": "2010-09-29T20:40:19",
"content": "I just went through the 13 page walkthrough, and it’s amazing. Keep on going!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187867",
"author": "George Johnson",
"timestamp": "2010-09-29T21:33:31",
"content": "Now that is some of the better bread-boarding I have seen. Seems to waste a LOT of space, but it looks good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187962",
"author": "RadBrad",
"timestamp": "2010-09-30T00:28:39",
"content": "Hello and thanks for posting some of my projects (this one and The Laser Spy Device).Lazarus-64 is a current project and gets weekend attention right now. I actually have a complete FPGA implementation but want to back track through the initial prototype and how it came to be. The 74HC logic version has been a blast to make!One day soon I will also have boards available, and everything on my site is always going to be fully open source.The new version actually has a 60MIPs GPU and is amazingly fast (256 sprites at 32×32 pixels is no problem). I will have boards made for that version as well.All version will connect to ANY micro-controller running at ANY speed and can be programmed in ANY language.What this means is that a PIC16F84 can do Space Invaders, or an AVR324 could do Wallenstein 3D!Cheers,RadBrad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187967",
"author": "RadBrad",
"timestamp": "2010-09-30T00:54:27",
"content": "One more comment…Here is the FPGA version running on a Spartan-3 XCS3400…http://www.youtube.com/watch?v=IRroMaaCAn4This version includes a the ability to handle sprites of any size and number with automatic transparency (blitting), as well as several GPU functions like line, box, circle, text, etc.The FPGA version is is like a Super Nintendo on a 2 inch card that you can control with any microporcessor. In fact, the uC acts like a game cartridge!I hope to get more done soon enough, as summer is winding down and my daytime work (bulding recumbent bicycles) is coming to an end due to winter!Cheers -> HackaDay is great.RadBrad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188007",
"author": "Andrew",
"timestamp": "2010-09-30T03:18:30",
"content": "Fabulous project! More, more, more!Thank you for making this very informative documentation for the project.I’m looking forward to the next stages of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188014",
"author": "Drone",
"timestamp": "2010-09-30T03:39:39",
"content": "This screams “FPGA”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188024",
"author": "Andy Gelme",
"timestamp": "2010-09-30T04:28:26",
"content": "I think you’ll find it’s called the “Lazarus-64”, because it has (dual) 64K of static RAM. The “Commodore 64” is named for the same reason (64K RAM). Nothing to do with claiming to have a 64 bit bus !Either way, an awesome project, with an excellent write-up. Clearly, more hacking and lounging around should be performed on secluded Caribbean beaches :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188057",
"author": "Tibs",
"timestamp": "2010-09-30T06:53:35",
"content": "Epic project. Detailed progress log.This is simply amazing! Wow!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188072",
"author": "Entropia",
"timestamp": "2010-09-30T08:32:30",
"content": "@Drone: He already did. And claims it’s boring.http://www.youtube.com/watch?v=IRroMaaCAn4Also: his website seems to be down (all I’m getting is 404 on every page, even the index).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188150",
"author": "Giba1",
"timestamp": "2010-09-30T15:05:31",
"content": "Man… you´re the solderless board GOD! The 256 color digital generation system is brilliant. Congrats!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188186",
"author": "RadBrad",
"timestamp": "2010-09-30T16:11:11",
"content": "Thanks for all the positive responses!RadBrad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188785",
"author": "Giba1",
"timestamp": "2010-10-01T15:25:03",
"content": "When will you release the Spartan FPGA video game project? I am very interested!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188903",
"author": "RadBrad",
"timestamp": "2010-10-01T18:48:45",
"content": "I am just working on getting LucidScience up and running (forum and tutorials) and then I will get back to the projects, including Lazarus. It may be a few months, but I hope to have something available if there is enough interest int hat project.Brad",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.453382
|
||
https://hackaday.com/2010/09/29/creepy-robot-really-wants-money/
|
Creepy Robot Really Wants Money…
|
Greg R. Jacobs
|
[
"Robots Hacks"
] |
[
"beg",
"money"
] |
As technology advances forward so does the numerous ways to beg for money. [Chris Eckert] has developed a robot to do the deed for him. With an odd eye mounted on the top of the robot to invoke pity presumably and a tin can out front to collect change from people it may encounter this is quite the hobo robot. On his
build log
, you’ll find tons of great pictures of the entire process from start to finish. With robots sent to beg people for money, it is only a matter of time until the first squeegee robot is cleaning your car at a red light. Make sure to check out the video after the break.
[youtube=http://www.youtube.com/watch?v=ujJu0uyY-8o]
Via [
BotJunkie
]
| 14
| 14
|
[
{
"comment_id": "187740",
"author": "deathventure",
"timestamp": "2010-09-29T16:10:54",
"content": "Please donate to the Skynet fund. If you donate, you will receive the great gift of serving your robot overlords instead of instant destruction.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187742",
"author": "Matt R",
"timestamp": "2010-09-29T16:21:49",
"content": "That has to be the coolest creepy robot I’ve ever seen. I had to laugh when he shook the can…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187743",
"author": "Derek",
"timestamp": "2010-09-29T16:31:02",
"content": "I love the concept, When you going make it move around? That would look awesome rolling around at a Halloween party! The moving Eye and shaking cup really make the project AWESOME! Great Work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187747",
"author": "hoboJones",
"timestamp": "2010-09-29T16:40:55",
"content": "Oh great, just what I need more competition!I was a hobo before it was “cool” sure they call it a bailout, but they ain’t foolin’ anyone!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187787",
"author": "djrussell",
"timestamp": "2010-09-29T18:53:34",
"content": "what it needs is a knife and a way to detect if people try to take money from the tin. cause everyone knows this is a stabbin’ hobo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187835",
"author": "andrew",
"timestamp": "2010-09-29T20:50:56",
"content": "Actually, I think all he needs to do to start making money is to give it an eyebrow. Lot’s of studies show how eyebrows instantly make things look more humans.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187843",
"author": "aztraph",
"timestamp": "2010-09-29T21:00:56",
"content": "it needs eyelids so it can blink in appreciation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187848",
"author": "chris",
"timestamp": "2010-09-29T21:07:58",
"content": "now it needs an arm to reach out and drag people down alleys if they don’t pay up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187916",
"author": "Hirudinea",
"timestamp": "2010-09-29T23:01:51",
"content": "What’s it raising money for, a monocle?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187943",
"author": "Patrick (not the right-wing one)",
"timestamp": "2010-09-29T23:43:56",
"content": "It just needs some money for the bus. Or it ran out of gas. Or it needs some money to pay for its diabetes medicine. Damn robohobos, takin’ advantage of my generosity/fear of robots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187968",
"author": "Amos",
"timestamp": "2010-09-30T00:59:35",
"content": "It needs a little hat and an arm to tip it to show gratitude. Also an eyebrow, as andrew said.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188016",
"author": "Drone",
"timestamp": "2010-09-30T03:40:55",
"content": "Gimme",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188044",
"author": "Chris Eckert",
"timestamp": "2010-09-30T05:39:18",
"content": "“Robohobos”Patrick, I’m stealing that word. Love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "413366",
"author": "Millsy",
"timestamp": "2011-07-05T10:08:09",
"content": "I for one welcome our new robot …. underlords?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.56904
|
||
https://hackaday.com/2010/09/29/16-bit-alu-in-minecraft/
|
16 Bit ALU In Minecraft
|
Caleb Kraft
|
[
"Software Hacks"
] |
[
"minecraft",
"video game"
] |
We love games here but we don’t often get a reason to write about them. This, however, is worth mentioning. The indie hit Minecraft is eating the entire internet right now. The game itself is hit and miss amongst our staff, but this project is unanimously accepted as awesome.
[Theinternetftw} has created a simulation of the ALU section of a 16bit processor
. He can set it in motion and run around watching as the states change. This is part of an even bigger project to create the entire processor as shown in the book “
The Elements of Computer Systems
“.
For those that are wondering how long it took him to place all of those pieces, he actually imported most of it from another program. You can get more details on how they pulled this off in this
forum thread
. Be sure to catch the video after the break.
[youtube=http://www.youtube.com/watch?v=LGkkyKZVzug]
| 34
| 31
|
[
{
"comment_id": "187718",
"author": "sM10sM20",
"timestamp": "2010-09-29T15:31:21",
"content": "Words cannot describe my respect for this man and his project… how may I serve you my master?No seriously, all jokes aside this is amazing. I love you.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2378273",
"author": "TheKingOfElectricalTape",
"timestamp": "2015-01-24T23:51:24",
"content": "Heck Yeah! Now I’m definitely getting Minecraft!",
"parent_id": "187718",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "187720",
"author": "Rawrl",
"timestamp": "2010-09-29T15:33:00",
"content": "Minecraft seems to be a mecca for sperglords of all types.You hear about the guy who’s building a to-scale replica of the USS Enterprise?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187722",
"author": "chrelad",
"timestamp": "2010-09-29T15:35:30",
"content": "I have no idea what an ALU is, but this is awesome!!! I can’t wait to see the finished processor. Way to use the redstone in an awesomely novel way :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187723",
"author": "nes",
"timestamp": "2010-09-29T15:37:50",
"content": "Interesting as purely by coincidence I happen to also be debugging an ALU coded in an obscure language today. I think he needs to implement a carry look-ahead before going much further.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187725",
"author": "chrelad",
"timestamp": "2010-09-29T15:39:25",
"content": "I love how long it takes you to run around and set the bits… I can imagine little people in my computer doing what your doing right now :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187726",
"author": "IceBrain",
"timestamp": "2010-09-29T15:43:59",
"content": "I’ve designed some ALUs in Computational Logic, but doing it in a 3D environment is awesome (and much more difficult for the lack of encapsulation). If he ends up implementing registers it’ll be completely amazing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187731",
"author": "Matthias",
"timestamp": "2010-09-29T15:53:57",
"content": "Yeesh… verilog and race conditions is bad enough. I can only imagine the eventual headaches timing might induce designing a “physical” processor. Awesome work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187732",
"author": "anthonydi",
"timestamp": "2010-09-29T15:54:26",
"content": "haha so when he gets virus he’ll be able to battle them with that torch like he did to the pig(?) at 6:06",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187741",
"author": "tayken",
"timestamp": "2010-09-29T16:14:59",
"content": "Simply awesome! He really needs carry look ahead to fasten adding things up (especially if ALU doesn’t have a multiplier) but that is easier said than being done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187750",
"author": "brennanthl",
"timestamp": "2010-09-29T16:50:37",
"content": "@chreladAn ALU, or Arithmetic Logic Unit, is the part of a processor that handles the math functions of a program. Normally they handle bitwise operations, add, subtract, multiply, divide, etc. but in this case he made a simplified ALU that only does addition or bitwise AND (&) of two 16-bit operands. Basically what happens in a CPU for a math instruction is the CPU decodes the instruction and passes it on to the ALU, and the ALU does the actual math calculation while the CPU is free to continue running the instruction pipeline. In this case he built the ALU first, and now he wants to implement the rest of a simple CPU, including a program counter, instruction fetch/decode, memory read/write, etc. etc. It’s a very ambitious project.And to everyone else, if you haven’t played Minecraft yet you owe it to yourself to check it out. It is one of the most addicting and fun games I have ever played, and it is quickly rising as one of my all-time favorite games. It’s absolutely HEAVEN for us DIY/hacker people that like to come up with crazy ideas and build them. It’s a giant sandbox world that you can do whatever you want it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187756",
"author": "Erik Johnson",
"timestamp": "2010-09-29T17:01:16",
"content": "@chrelad Oh geez you just conjured up memories of that horrible cartoon “Reboot”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187757",
"author": "minipimmer",
"timestamp": "2010-09-29T17:05:52",
"content": "Please somebody create a tool to turn (or synthesize) VHDL models into Minecraft maps.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187767",
"author": "kt88",
"timestamp": "2010-09-29T17:45:50",
"content": "Barry Kripke from Big Bang Theory!I like that he included the random pigs and bison that must be the cause of havoc within most pooters.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187770",
"author": "swillis",
"timestamp": "2010-09-29T18:04:17",
"content": "I see a instruction decoder with memory in his future. He can then execute some code. Perhaps a compiler?How about rewriting minecraft in minecraft?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187781",
"author": "Shadyman",
"timestamp": "2010-09-29T18:37:48",
"content": "Hahaha, “It goes from one to the other to the other, are you listening, pig? It goes from one to the other to the other…”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187797",
"author": "Jeff",
"timestamp": "2010-09-29T19:05:58",
"content": "Ah… The game I was hoping Infiniminer would become.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187841",
"author": "AtkinsSJ",
"timestamp": "2010-09-29T20:56:28",
"content": "One potential problem for stuff like this is that Minecraft only stores so much of the map in memory at once, so things can’t be infinitely huge. And lag between components, of course.@IceBrain, I know I’ve seen a video of a memory array by someone else, didn’t save the link though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187879",
"author": "anonymous coward",
"timestamp": "2010-09-29T21:54:35",
"content": "Wait for it…“What kind of frame rate do you get in Crysis?”or“Imagine a beowolf cluster of those!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187885",
"author": "Mi6",
"timestamp": "2010-09-29T22:05:06",
"content": "OK, this is seriously sick. Extremely cool project, one of the best projects I’ve seen here ever. It takes vast amounts of time to implement a 16-bit ALU in Minecraft, that’s for sure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187945",
"author": "PatrickW",
"timestamp": "2010-09-29T23:50:23",
"content": "Immediately reminds me of thishttp://xkcd.com/505/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187954",
"author": "nyder",
"timestamp": "2010-09-30T00:01:31",
"content": "I guess i didn’t give minecraft enough of a look, I didn’t realize the game was capable of stuff like this. Time to look again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187960",
"author": "cornelius785",
"timestamp": "2010-09-30T00:27:19",
"content": "@AtkinsSJI wonder if that (size limitation) will kill off implementing a processor + simple memory array. Appropriate pipelining and clocking should put order back into the system. I’m thinking having knowledge of high speed layout + VLSI (making sure wires in a parallel bus are all the same length, general routing practices) skills would be beneficial in pulling off a full scale processor.Since minecraft is a 3d realm, you probably could explore the realm of 3d routing of stacked layers. That’d be a nightmare to design, build, and debug. It’d probably be easiest to create HDL for the complete system, simulate it, create RTL, and hand route it, then back to simulation of HDL and minecraft to see where things go awry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188017",
"author": "Michael Bradley",
"timestamp": "2010-09-30T03:48:33",
"content": "This is like tron in a way. I like it, imagine a cloud based system, built visualy, so you could navigate around, look at the busses etc…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188047",
"author": "Amtal",
"timestamp": "2010-09-30T06:05:44",
"content": "@cornelius785 It looks like the design is heavily software-assisted, with the actual Minecraft map being generated. An HDL->Minecraft toolchain would be both pointless and awesome :DI’ll bet the Minecraft developer put in the redstone stuff after reading about people’s work on a Dwarf Fortress floodgate+pressure sensitive plate logic. Toady’s got competition now!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188091",
"author": "Jurgi Filodendryta",
"timestamp": "2010-09-30T10:45:03",
"content": "It knocked me off my feet. Amazing work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188296",
"author": "draeath",
"timestamp": "2010-09-30T19:25:14",
"content": "@RawrlI believe it’s the same guy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188837",
"author": "darkpadden",
"timestamp": "2010-10-01T17:04:42",
"content": "reminds me of thishttp://xkcd.com/505/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189056",
"author": "elude107",
"timestamp": "2010-10-02T02:28:02",
"content": "This video was posted on Reddit and the creator was given a job at a game studio.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189198",
"author": "theoffensivegamer",
"timestamp": "2010-10-02T09:34:41",
"content": "I feel sorry for his children.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191502",
"author": "hunnter",
"timestamp": "2010-10-05T13:05:54",
"content": "@AtkinsSJWell he could easily build up and down the way as well. It won’t be as pretty anymore, but it can be done.I remember some of the crazy huge computers in Dwarf Fortress, spanning huge numbers of floors in order to work.As for Red Stone in Minecraft, i would love if Notch eventually added electricity to the game.He’d also need to add generators in, as well as the ability to make things like turbines or windmills.With power sources, it would make it so much more interesting to work with.And then you would be able to build a powered city with lights!Whenever the weather cycle is eventually implemented, rain cycles could form and get rid of the whole “infinite” water.So much promise for this game.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "947772",
"author": "moo",
"timestamp": "2013-01-26T06:46:14",
"content": "Try Tekkit or Technic mod pack for minecraft, it contains solar power, wind, water and even nuclear power.",
"parent_id": "191502",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "354140",
"author": "Christine",
"timestamp": "2011-03-10T14:32:47",
"content": "If any of the admiring commenters here have NOT read The Diamond Age, by Neil Stephenson, you should you must please go read it now. This guy is doing what Stephenson does in his story – creates ingenious and unexpected ways of understanding the principles behind computing. ^_^",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "354155",
"author": "Caleb Kraft",
"timestamp": "2011-03-10T15:35:30",
"content": "@Christine,I concur. Also read “mother earth, mother board” and “In the beginning there was the command line” the same author. He’s fantastic at breaking down these systems and relationships in a manner that is both comprehend-able and gripping.",
"parent_id": "354140",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,366.523652
|
||
https://hackaday.com/2010/09/29/woot-lights-and-mice-transplants/
|
Woot Lights And Mice Transplants
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"lights",
"logitech",
"LPT",
"microsoft",
"mouse",
"parrallel",
"port",
"quake 2",
"transplant",
"usb",
"woot"
] |
[Nathan Long] sent in two fairly simple mods he’s been working on. The first is the control of
Woot-off Lights via LPT port
. A computer checks
Woot
for the Woot-off logo, and if the logo is spotted, on go the lights. It’s really just a twist on the
LED/Arduino email message system
, but the creativity is nice.
His other modification is the stuffing of a
Microsoft Intellimouse inside of a Logitech Wingman
. With the goal of giving the old PS/2 mouse USB capabilities and removing the terrible ball. For those that are asking themselves “why bother? Terrible ergonomics, no scroll wheel, etc.” [Nathan] claims it’s for Quake 2 nostalgia, to each their own we suppose.
| 6
| 6
|
[
{
"comment_id": "187710",
"author": "brad",
"timestamp": "2010-09-29T14:32:26",
"content": "i’ve been considering a mouse transplant for a little while. i have renewed confidence of success now!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187715",
"author": "nah!",
"timestamp": "2010-09-29T15:15:09",
"content": "i want complete crt emulation with simulating of the bulge via 3dvision or it didnt happen",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187788",
"author": "Juan Cubillo",
"timestamp": "2010-09-29T18:54:49",
"content": "Shouldn’t that current draw damage his parallel port?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187808",
"author": "Nathan Long",
"timestamp": "2010-09-29T19:55:36",
"content": "The draw from the leds should be well within what the port can supply. The motors, probably not. A couple relays, plus power from USB would be a better idea (or even an external PS). That said, it has ran for months without issue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188512",
"author": "Whatnot",
"timestamp": "2010-10-01T03:17:14",
"content": "Who still has computers with parallel ports? Seriously they’ve not been on motherboards since the w98 days, and it’s annoying to us tinkerers, and now serial is rapidly going too, good thing the USB2Serial chips and designs are abundant now, but it still doesn’t beat having a ‘port you are not using anyway’ effect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189146",
"author": "PocketBrain",
"timestamp": "2010-10-02T06:47:53",
"content": "Aw man I was gonna do that via usb; control the wootoff lights. Now I can sleep in!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.609886
|
||
https://hackaday.com/2010/09/28/launchpad-not-limited-to-value-line-chips/
|
Launchpad Not Limited To Value Line Chips
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"isp",
"launchpad",
"msp430f2272",
"texas instruments",
"ti",
"tssop"
] |
Wanting to use my TI Launchpad as more than just a development board I thought I’d do a few experiments using it as an in-system programmer. After a few tripping points I was able to get it working and then some. It seems that the device is not limited to just the value line of microcontrollers it was intended to support. In the image above I’m using it to program an
MSP430F2272
which is a pretty powerful little chip with 32 KB of program space. Click through the break for more information on the setup.
I started by etching a breakout board for the 38TSSOP package so that I had something usable.
Drag soldering
to the rescue, this turned out to be easier than I had expected.
Once I had access to the pins it was just a matter of checking out the connections used on the Launchpad board and hooking up the f2272. It turns out you only need three; TEST, RST, and GND. You can power the circuit externally or make a fourth connection to the voltage. I was sad to see that the jumper header doesn’t have GND on it so in addition to using an IDC cable, you can see in the image at the top that there’s an orange jumper wire going to the ground-pin breakout from the chip socket.
But I didn’t quite have it working yet. I had problems reliably connecting to and talking to the chip. After studying
the schematic
(ZIP) I realized I was being plagued by a floating reset pin. I grabbed a 4.7k resistor as a pull-up to volatge and communications are now perfect. For my test code I’m building a small version of pong using a Nokia 3595 LCD screen.
I’m using 100% open source tools for this which means I’m not limited to a 2k code output. You can setup these tools for yourself by following
our TI Launchpad on Linux tutorial
.
| 43
| 43
|
[
{
"comment_id": "187396",
"author": "will",
"timestamp": "2010-09-28T20:07:17",
"content": "really? i might get one or ten now…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187398",
"author": "NatureTM",
"timestamp": "2010-09-28T20:14:02",
"content": "Really glad I saw this; I think I’ll go order some samples. I do like TI’s Code Composer though, so my move to the open source tools will not be a happy one.Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187404",
"author": "suspended-chord/gatesphere",
"timestamp": "2010-09-28T20:25:36",
"content": "The LaunchPad can be used as a programmer for any MSP430 which supports the SBW interface. The value-line intended limitation refers simply to the DIP socket on the board, with it’s pinout. The user’s guide even states that it can be used to program anything with the SBW interface.Cool project though, keep up the good work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187408",
"author": "goldscott",
"timestamp": "2010-09-28T20:33:30",
"content": "Nice!I was hoping to use the launchpad for more than just the two dinky little chips it came with.Time to go sample some bigger & better MSP430s.I’m actually in the process of installing mspgcc and related toolsets on OS X right now. Hope it works…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187418",
"author": "TheCarlos",
"timestamp": "2010-09-28T20:52:47",
"content": "Wait, does that mean you can actually buy these now? For real? And you’ll actually get them?-c",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187427",
"author": "Pedro",
"timestamp": "2010-09-28T21:18:35",
"content": "I just checked the TI estore, and they appear in stock.I would have ordered one right now, but I had a 50% off voucher which turns out to have expired.$4.30 is cheap, but after I add my bank’s foreign transaction charges £4 is a bit too expensive for me right now. For £2.70 I would have bought one, though.Yeah, I know, I know; I’m a real cheap bastard, right? Well I’m a student at the moment so I really have no free cash to be spending on stuff like this when I have a perfectly good AVR programmer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187432",
"author": "dragonfli",
"timestamp": "2010-09-28T21:38:46",
"content": "@PedroThey’re in stock? Highly doubt that. My order’s still processing with an estimated ship date of next /month/.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187435",
"author": "Pedro",
"timestamp": "2010-09-28T21:45:50",
"content": "https://estore.ti.com/MSP-EXP430G2-MSP430-LaunchPad-Value-Line-Development-kit-P2031.aspxReckons they’re in stock; Availability; In Stock is tucked away under the description.When they were first released I remember the site saying they were awaiting supplies or something like that, so I assumed it wouldn’t be a case of the website lying about stock levels.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187440",
"author": "redbeard",
"timestamp": "2010-09-28T21:58:00",
"content": "meh, given the launchpad and the goodfet, i’ll stick with the goodfet.http://goodfet.sf.net",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187442",
"author": "Malte",
"timestamp": "2010-09-28T21:58:41",
"content": "You figured that out NOW? For me, that was the main reason to get one in the first place. This isn’t exactly news, almost every post I saw about this pointed out that the launchpad is a full featured spy-by-wire debugger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187443",
"author": "nave.notnilc",
"timestamp": "2010-09-28T21:59:58",
"content": "totally called this; from my readings, it will program the MSP430F5 series, and the 14, 20, 28, and 38 pin members of the MSP430F2 series. i.e. anything that can be programmed via spy-bi-wire.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187449",
"author": "Logan Kennelly",
"timestamp": "2010-09-28T22:15:52",
"content": "TI’s estore is a mess. I ordered my Launchpads July 17th and they have yet to arrive. In fact, they have re-vamped their store system since then, and I can no longer even check the order status. Three contact emails and one contact phone number all ended up being bogus.If it wasn’t for the fact that it is Texas Instruments and they haven’t charged my credit card, I would have assumed it was a scam. I strongly appreciate their effort to enter into the hobbyist market, but it is clear they have a long way to go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187459",
"author": "rasz",
"timestamp": "2010-09-28T22:35:23",
"content": "same, they are not in stock, or they are in stock but just dont ship them cos they dont like me :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187463",
"author": "sgf",
"timestamp": "2010-09-28T22:43:12",
"content": "I live in the UK, and my Launchpad arrived a couple of days ago, having ordered it pretty much immediately upon seeing it. Make of that what you will.I’ve yet to find time to play with it, though. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187470",
"author": "nave.notnilc",
"timestamp": "2010-09-28T22:59:30",
"content": "oh, btw, I ordered my launchpads on the second day and got them within a week; just sayin’ because everyone else is complaining :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187471",
"author": "ehrichweiss",
"timestamp": "2010-09-28T23:04:54",
"content": "TI are apparently shipping to Digikey, etc. long before any individuals ever get any. I waited till the beginning of September to get the FIVE that I ordered and was still being told that I might not get them till October though I had been promised August or September in July. I cancelled and ordered from Digikey for a whopping 5 cents more and got them in 2 days. I don’t care if I had to pay for shipping, the loss of dev time I took waiting on TI to straighten up would have cost me bigtime if I’d been trying to release a product…grrrrrrr.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187476",
"author": "Jak_o_Shadows",
"timestamp": "2010-09-28T23:18:44",
"content": "I finally got mine a couple of days ago. After waiting three months for it to ship, when it did finally ship, it got here within 4 days. A huge box for such a tiny board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187488",
"author": "G8erB8",
"timestamp": "2010-09-29T00:09:09",
"content": "Ordered 3 about two weeks ago. Got them the same week. Still haven’t played with them much. I’ve never done any kind of programing so the chips it came with are more than enough right now, but I’m glad the option is there for better chips.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187500",
"author": "Jerome Demers",
"timestamp": "2010-09-29T00:57:07",
"content": "I try doing the same thing with the MicroStick from Microchip. It does not work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187509",
"author": "Chuckt",
"timestamp": "2010-09-29T01:49:46",
"content": "I received mine around July 4th.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187520",
"author": "Andrew",
"timestamp": "2010-09-29T03:00:35",
"content": "I ordered my Launchpad from DigiKey instead of directly from TI, and it shipped the next day. I’ve had mine for several days now, and it’s working great.TI seems to be encouraging people to buy though other resellers by linking directly to resellers’ product pages on the front page of their wiki. Digikey has 180 in stock as I write this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187532",
"author": "Bill",
"timestamp": "2010-09-29T03:52:25",
"content": "Still back ordered from July 15. I’ve lost interest that is just not acceptable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187620",
"author": "matt",
"timestamp": "2010-09-29T06:52:26",
"content": "I got mine in the mail today…… Now to have a little fun……",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187622",
"author": "sgf",
"timestamp": "2010-09-29T06:56:03",
"content": "nave.notnilc: If you live outside the US, that’s really impressive. My understanding was they were filling all the US orders first.I’m not complaining – I was just saying that if you’re /still/ waiting for your board, you should hang on in there. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187631",
"author": "sariel",
"timestamp": "2010-09-29T07:38:07",
"content": "this is pretty rad. i had a feeling that the launchpad would program the other 430’s. guess its time to get crackin on a shield.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187636",
"author": "SomeEvent",
"timestamp": "2010-09-29T07:59:30",
"content": "@MalteWhy didn’t you post first? You could have become a productive member of hackaday then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187652",
"author": "Rogan Dawes",
"timestamp": "2010-09-29T09:55:10",
"content": "I ordered three a day or so after they were announced, and got them in mid-July, shipped free to South Africa.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187654",
"author": "cde",
"timestamp": "2010-09-29T10:01:29",
"content": "Took 2 and a half months, but I got my Launchpad for 2.15. Should have ordered more :O (Was able to order a free ez430 usb dev thing though haha)The launchpad is tiny. Business card tall, Less than a business card long.Also ordered some better chips.A pair of extra MSP430G2231 (original Launchpad chips. No use getting the other valueline chips really)A MSP430F2013 N (14-DIP) which isn’t too different from the g2231, and even the msp430F series has DIP sized chips.MSP430F1232 DW (28-SOIC) 16-bit Low-Power Microcontroller, 8kB Flash, 256B RAM, 10 bit ADC, 1 USARTSoic is probably the smallest size package I’d go with, but SSOP’s arn’t TOO bad. Last time I was using cat5 wires, but those are too heavy, but magnetic wire is perfect for that pitch and easy to use.Wish TI had a simple Spy-Bi-Wire listing page to see which ones could be used.Also wish there was a 20 pin dip msp430, with more gpio and a hardware uart (Uart + i2c would be best), but bit-banged i2c with a bunch of i2c i/o expanders works.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187659",
"author": "cde",
"timestamp": "2010-09-29T10:12:30",
"content": "Also, why not just take the ground from the two headers down at the bottom? The header that has two ground and one V+?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187828",
"author": "Malte",
"timestamp": "2010-09-29T20:37:04",
"content": "@SomeEventI didn’t think that this needs to be posted. It even says in the launchpad whitepaper (on page 2):“Program any MSP430 Value Line device, eZ430 target board, or Spy Bi-Wire enabled MSP430 device”http://focus.ti.com/lit/wp/slay017/slay017.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188066",
"author": "Joegeek",
"timestamp": "2010-09-30T07:57:15",
"content": "I still haven’t received mine, I ordered it the day Hack a Day “Showcased” the board. 10 Aug 10 ??Still, no LaunchPad in site nor has Ti made any attempts to communicate to me. I just wonder how the hell does Ti stays in the business. I know of two other companies that have a similar problem with NOT receiving their orders in the same fashion. I am wish now I had bought an Arduino board. Well, off to Frys Tomorrow – lolBest of Luck on you boards all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188120",
"author": "cgmark",
"timestamp": "2010-09-30T12:37:36",
"content": "I bought 2 and received them the next day. I got them from newark.com but they show out of stock there now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189203",
"author": "regomodo",
"timestamp": "2010-10-02T09:54:13",
"content": "Wow, you got yours?! I’m still waiting for 3 I paid for months ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193122",
"author": "ldiaz",
"timestamp": "2010-10-07T22:53:08",
"content": "I bought mine (live in Colombia) for 25 US Dolars today, it should be in 2-3 days hopefully. I checked and there are only 7 units on the only partnert in the country.By the way do you know where are detailed info about the adaptation for programming more MC’s",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "193817",
"author": "cde",
"timestamp": "2010-10-09T07:40:21",
"content": "@ Ldiaz, as long as it supports spy-bi-wire, which is about a quarter of the msp430 chips, and nearly every new one recently, just connect the four lines and v+ and ground from the launchpad. Very simple really.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "195422",
"author": "Andrew",
"timestamp": "2010-10-11T23:52:29",
"content": "Did anyone else notice that the spy-by-wire interface on this board is itself powered by an MSP430 processor? It’s not a value-line, it’s much higher-end than the target chip: A MSP430F1612. These sell for $8 – $18 a piece!I suspect that TI is heavily subsidizing these to promote MSP430s in the hobby market – there’s no way the manufacturing cost could be that low.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210812",
"author": "Casey O'Donnell",
"timestamp": "2010-11-11T10:14:38",
"content": "ti sends samples of msp430 f2013 and the g2231.8 different parts with the number of pieces limited to how expensive they are. the dip (N) msp430s are limited to 2 of each. 5+ for things like led drivers and opamps. free shipping and it wont take months like it did for the launchpad.the f20 is pin compatible can just slot it into the socket instead of using cables.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "321624",
"author": "mikuslaw",
"timestamp": "2011-02-03T01:02:24",
"content": "One idea about the ground connector. I may be wrong but it could be possible to put a jumper across the 3pin ground/ground/vcc connector to short ground and vcc – as the jumper connecting USB supply to uc supply part is disconnected it shouldn’t generate any shorts, but it would give you a ground on one of the pins in the header.(I don’t have my LaunchPad atm to check it though, so be carefull trying :) ).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "321645",
"author": "Douglas",
"timestamp": "2011-02-03T01:54:29",
"content": "I don’t think anyone has said this but:If you look at the board there is actually a programming header right next to the jumpers where Mike connected his IDC cable…marked ‘J4’.I know it isn’t the standard 0.1″ pitch but, I suspect you could find suitable connectors or just solder wires to the board which lead to a cable of your choice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "340895",
"author": "ZAPeachY",
"timestamp": "2011-02-24T18:30:10",
"content": "Ordered mine from RS. Waited 5-6 working days, as per webpage. Got delivered in 5. And I live in South Africa…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "348665",
"author": "Anon",
"timestamp": "2011-03-05T05:31:50",
"content": "Douglas, that’s the eZ430 programming interface.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "382840",
"author": "Theophrast",
"timestamp": "2011-04-19T16:23:56",
"content": "Andrew – subsidizing – probably yes, however, please note that chips are priced not by their actual manufacturing costs, but by what they think the market will pay.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3094922",
"author": "Bina",
"timestamp": "2016-07-20T16:10:32",
"content": "I tried burning a simple code on MSP430i2030 related to toggling the LED, however, the CCS complained that it could not find the chip, yet I could see the LED being toggled. But no matter what changes I make to the code, it keeps on toggling (even when i commented that part of the code). Can anyone please suggest an appropriate way to connect the chip to the launchpad. Here is the link related to my connections (ground connection is missing, however, I did connect that later):http://electronics.stackexchange.com/questions/247024/programming-msp430i2030-using-launchpad?noredirect=1#comment543809_247024",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.742254
|
||
https://hackaday.com/2010/09/28/building-a-crystal-oven/
|
Building A Crystal Oven
|
Mike Szczys
|
[
"Radio Hacks"
] |
[
"crystal",
"frequency",
"mosfet",
"oscillator",
"oven",
"radio",
"scott harden",
"thermister"
] |
Radio communications depend on stable oscillator frequencies and with that in mind, [Scott Harden] built
a module to regulate temperature of a crystal oscillator
. The process is outlined in the video after the break but it goes something like this: A small square of double-sided copper-clad board is used as a base. The body of the crystal oscillator is mounted on one side of this base. On the other side there is a mosfet and a thermister. The resistance of the thermister turns the mosfet on and off in an attempt to maintain a steady temperature.
This is the first iteration of [Scott’s] crystal oven. It’s being designed for use outdoors, as his indoor setup uses a styrofoam box to insulate the oscillator from ambient temperatures. He’s already working on a second version, and mentioned the incorporation of
a Wheatstone bridge
but we’ll have to wait to get more details.
[youtube=http://www.youtube.com/watch?v=uVluqDqQZX0]
| 13
| 13
|
[
{
"comment_id": "187402",
"author": "bilbao bob",
"timestamp": "2010-09-28T20:18:27",
"content": "I’ve had excellent luck using big old power FET heatsinks coupled to Peltier junctions and using foam enclosures over voltage or clock sources. It’s wild to see how controlling temp can increase precision of almost anything, like bridges made from from hand-picked components, or actually getting rated accuracies from crystals.If you put big peltier junctions at the end of the sink and smaller junctions near the payload, you can use multiple temp sensors to regulate temp down to amazingly small fluctuations.You don’t need to be super precise, but the idea is to hold the exterior wings within a degree or two and then use the smaller devices to decrease fluctuations near the core. By using multiple devices, you can get pretty impressive performance and deal with fluctuations.Of course, trying to hold living cells at a given temp in a bath of circulating plasm might not be something everyone does, but it would let you cook perfect soft boiled eggs every time…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187407",
"author": "jamieriddles",
"timestamp": "2010-09-28T20:32:25",
"content": "title made me think it was an oven with a quartz heating element",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187417",
"author": "M4CGYV3R",
"timestamp": "2010-09-28T20:51:49",
"content": "I was just thinking to myself “You can make crystals in an oven?”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187434",
"author": "pookey",
"timestamp": "2010-09-28T21:42:21",
"content": "Neat project. I wonder, though, if there might not be a more energy-efficient approach to this.You can tweak a crystal’s frequency with external capacitance. I wonder if it wouldn’t be possible set up a circuit where a temperature sensor (thermistor, silicon diode, or LM34) drives a varactor to trim the crystal frequency.You’d probably need some circuitry in between the sensor and varactor to effect sufficient drive and deliver the proper transfer function, but at least you wouldn’t be throwing away energy as heat.This, of course, would be an important consideration in any battery-powered application.Pookey",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187464",
"author": "David",
"timestamp": "2010-09-28T22:44:34",
"content": "Have a look at this other option:http://www.romanblack.com/xoven.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187479",
"author": "D_",
"timestamp": "2010-09-28T23:25:33",
"content": "I guess those into radios understand what the crystal oven was going to be, unless the term was hijacke to mean something else. @ pookey in between a simple crystal controlled oscillator, and one that use an oven for the crystal is the temperature compensated crystal oscillator.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187610",
"author": "elektrophreak",
"timestamp": "2010-09-29T06:07:20",
"content": "i wonder if they make crystals with this temperature stabilization option…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187641",
"author": "nes",
"timestamp": "2010-09-29T08:32:20",
"content": "@pookey: Dallas make exactly this. The part is DS32KHZ. Can be powered directly from a battery consuming just 1uA, accuracy is about +/-2ppm. The frequency is a fixed 32.768Hz though, so not so useful for RF.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187700",
"author": "Mike",
"timestamp": "2010-09-29T14:04:20",
"content": "Well let’s see some crystals then!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187716",
"author": "Nick",
"timestamp": "2010-09-29T15:16:59",
"content": "@bilbao bob: peltier junctions are a smart choice! What size (surface area, really) do you use? Have you checked to see the high and low environmental temperatures where the peltiers hit 100% duty cycle?What the author of this article doesn’t mention is whether (or how) mere mortals can get their hands on SC-cut crystals. The industry-standard AT cut is fine for applications where power is king, but if you’re going to all the trouble of building an OCXO you probably want a flat temperature curve more.I think the affordable solution is probably an AT-cut TCXO IC like @pookey mentioned, under a peltier junction under a heat sink. I think I’d pick Maxim’s DS4026, since you can access its built-in temp sensor over i2c to control the peltier. That gets us down to better than 1 ppm, and if you really want to get fancy you could discipline the oscillator using GPS and/or NIST’s NTP servers.You have to respect this fellow’s homebrew chops, but I think toner-transfer or a small-run PCB print would really help with impedance matching in the output network. Smearing the waveform to kingdom and picking up AM radio with those poking-out wire antennas sort of defeat the purpose.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187745",
"author": "lulu",
"timestamp": "2010-09-29T16:33:00",
"content": "So he made a transistor heater big deal…All we want to cool our equipments.If you want to make a goddamn hot transistor just get an lm317 put 1 amps through it and it will be motherfuking hot…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187806",
"author": "therian",
"timestamp": "2010-09-29T19:47:15",
"content": "truly useful hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188215",
"author": "bilbao bob",
"timestamp": "2010-09-30T16:58:07",
"content": "@NickPeltier for active temp management is a bit of a drag, because you have to control current in the process, and you have limits to what you can accomplish with that because all a peltier device really consists of is a bunch of thermocouple junctions. If you pass too much current, you’ll melt/blow the joints between the metal junctions.Keep in mind that our application required precise temp control above all else (certain kinds of cells don’t like being hit with XXXX if it gets too warm, and when it’s too cold they don’t want to play nicely) so we had to play games with thermal coefficients and dissipation.In gross form, you use big honking peltier devices on the wings with one side bonded hot and one side bonded cold. You drive them using a big table of sine wave values so that you’re steering the temp and not wasting current fighting the other peltier device. Then you select values from the table based on a log curve and use ordinary PID control to drive it.Then, more towards the center of the device, you stick junctions (again, any junction is a peltier device) and drive those independently. The single junctions allow incredibly fine tweaking. In the ring before that you put your sensing devices, which are very very fast.This allows you to detect rises, which can be mitigated long enough for the big devices to cool it all down if thermal loads start swinging for the bleachers. Probably overkill, but it got the job done.In general, we used ordinary AC to hold temps to within 4-5C range in the room, then a pid controller/fan setup (later abandoned as redundant), then the peltier chamber.The hot side peltier devices used fans (remember, we had room a/c) and the cold side could have used Nitrogen, but we didn’t need that kind of cold.It was sad to see that thing dismantled.@Nick – I laughed at “picking up AM radio”Remember, it’s all baby steps until you’ve made all the easy mistakes.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.88823
|
||
https://hackaday.com/2010/09/28/graffiti-analysis/
|
Graffiti Analysis
|
Mike Szczys
|
[
"classic hacks"
] |
[
"3d",
"gesture",
"gml",
"graffiti analysis",
"graffiti markup language"
] |
Here’s a fascinating project that started with a great idea and piled on a remarkable amount of innovation.
Graffiti Analysis
is a project that captures gestures used to create graffiti art and codifies them through a data-type called Graffiti Markup Language (
GML
). After the break you can watch a video showing the data capture method used in version 2.0 of the project. A marker taped to a light source is used to draw a graffiti tag on a piece of paper. The paper rests on a plexiglass drawing surface with a webcam tracking the underside in order to capture each motion.
The newest iteration, version 3.0, has some unbelievable features. The addition of audio input means that the markup can be projected and animated based on sound, with the example of graffiti interacting with a fireworks show. The 3D tools are quite amazing too, allowing not only for stereoscopic video playback, but for printing out graffiti markup using a 3D printer. The collection of new features is so vast, and produces such amazing results it’s hard to put into words. So we’ve also embedded the demo of the freshly released version after the break.
Graffiti Analysis 3.0
[vimeo=http://vimeo.com/13327615]
Graffiti Analysis 2.0
[vimeo=http://vimeo.com/7283422]
[Thanks BoBeR182]
| 30
| 30
|
[
{
"comment_id": "187336",
"author": "Michaël",
"timestamp": "2010-09-28T18:32:43",
"content": "If these guys were just a bunch of attic hobbyists making this stuff up to amuse themselves then i’d have said ‘awesome!’ but this bloated ‘fenominal’ ‘enhanced’ ‘so many applications’ nonsense really put me off. 3D printing is cool. But printing what exactly? a 3D knotted turd? It’s not worth that exaggerated presentation and honestly, imho, it should not be on hackaday just because of the commercial mumbo. It’s a winamp DSP effect at best",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187338",
"author": "nave.notnilc",
"timestamp": "2010-09-28T18:39:23",
"content": "this is the coolest graffiti-related anything I’ve ever seen, and one of the first not-stupid art uses of a 3d printer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187341",
"author": "tj",
"timestamp": "2010-09-28T18:47:11",
"content": "This is the most hype ive ever seen for a most useless product",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187342",
"author": "Taylor",
"timestamp": "2010-09-28T18:56:41",
"content": "No longer will our skylines be littered with miniscule rectangle boxes filled with yellow light. Soon towering skyscrapers will be plastered with interactive graffiti (although probablly advertisements) to electrify our cites with amazing visual stimulation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187399",
"author": "joe",
"timestamp": "2010-09-28T20:14:30",
"content": "@tjyou do realize the video was edited, right? THIS WASN’T ACTUALLY PRESENTED AT THE APPLE KEYNOTE.@Michaeli don’t think there is any commercial mumbo jumbo associated with it, since i dont think this is something they are trying to sell or market.it just looks like a project that they took to the nth degree of adding features.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187401",
"author": "Kyle with a K",
"timestamp": "2010-09-28T20:18:10",
"content": "Their latest video that was posted Graffiti Analysis 3.0 is obviously just clips from another conference. Check out Apples iPhone OS 3.0 Software Keynote. Look familiar? I think it would have been funny if they had Steve Jobs somewhere in there.youtube link:http://www.youtube.com/watch?v=EiNgdW9V-e8",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187410",
"author": "stol24",
"timestamp": "2010-09-28T20:34:08",
"content": "@Michaël Take a chill pill.(Btw, demonstrating your ignorance always looks even worse in a first post.)@tj Hello troll!As far as the parody is concerned, did HAD readers lose their humour or what?Anyway, it is an open source project about archiving/presenting motion produced in graffiti art.I personally find it fascinating to say the least!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187426",
"author": "M4CGYV3R",
"timestamp": "2010-09-28T21:16:46",
"content": "I think the videos are amazing. Possibly cooler than the product itself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187437",
"author": "rasz",
"timestamp": "2010-09-28T21:48:31",
"content": "I dont get it, and im with first poster on this one. Pointless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187461",
"author": "Thijs",
"timestamp": "2010-09-28T22:40:39",
"content": "Yes, pointless. Also, awesome!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187467",
"author": "Leithoa",
"timestamp": "2010-09-28T22:52:13",
"content": "The splices of the keynote stuff could have been left out.There were some pretty cool features in the program overall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187481",
"author": "Michaël",
"timestamp": "2010-09-28T23:33:54",
"content": "@stol24 pill taken!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187484",
"author": "andrew",
"timestamp": "2010-09-28T23:38:00",
"content": "Ok, it took me until the end of the video to figure out that the macworld (or, whatever conference that was) shots were just cut together to make it look like they were presenting about Graffiti Analysis. Still, “unbelievable” is a bit hyperbolic for a feature description, eh? Want unbelievable: how about you tell me that the only hardware I need to pull this off is an arduino and an led. That would be unbelievable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187485",
"author": "Terc",
"timestamp": "2010-09-28T23:42:04",
"content": "HAD, you’ve had some of the best articles recently. Not sure if it was the survey a while ago, a recommitment to grow, or what, but keep it up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187516",
"author": "jaded",
"timestamp": "2010-09-29T02:56:41",
"content": "It’s all missing one key item: this “graffiti” is unreadable, ugly vandalism. It’s not worth analyzing except as providing potential evidence linking a specific vandal to a specific instance of vandalism.It’s not art, and not worth preserving. It’s the canine equivalent of peeing on a tree, except dog pee is washed away after the next rain.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187519",
"author": "bwmetz",
"timestamp": "2010-09-29T02:59:34",
"content": "Glad I wasn’t the only one sensing el Jobso was being channeled. Now if only they’d had a “one more thing” at the end that turned out to be an open-source diy tablet, then I’d have been impressed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187526",
"author": "octel",
"timestamp": "2010-09-29T03:32:46",
"content": "@jadedare you a republican/libertarian by any chance?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187533",
"author": "thetruthhertz",
"timestamp": "2010-09-29T03:56:31",
"content": "@octel-here’s an experiment for you:Step 1: Go to the mall, and have one of the artists out by the food court do a portrait of you. Then, produce a can of spraypaint, and in front of that artist, obliterate his artwork. Record the results.Step 2: Find a rail car, dumpster, or neighborhood wall in a crappy part of town. Find the artist who left his mark there. Then, produce a can of spray paint, and in front of that artist, obliterate his artwork. Have your next-of-kin record the results and write a nice obituary for you.@jaded is right. present day graffiti amounts to nothing more than territorial pissings. That’s the whole point of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187535",
"author": "anthonydi",
"timestamp": "2010-09-29T04:02:30",
"content": "haha I didn’t realize until the end of the video that the conference was spliced in. I was trying to figured out why the mac looking people were so excited about graffiti.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187647",
"author": "bleh",
"timestamp": "2010-09-29T09:36:52",
"content": "Interesting concept. Looks like it analyses the brush strokes as well.. Could be useful for forensic work…I’m not a fan of such graffiti. Simply tagging is a waste and as jaded said, much like pissing on a tree. All it does it make things look ugly. Doing full pieces however, in places that aren’t private property is by all counts art however.Using software and projectors to produce some stunning visual effects is art. Just as any other form of modern art is still art. Something nice to look at.I’d like to try this out, with different types of photography involved as well perhaps.Using non-‘graffiti’ styled writing/drawing could be interesting as well… :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187665",
"author": "Whatnot",
"timestamp": "2010-09-29T10:16:19",
"content": "I don’t think it’s necessary to post on every article ‘this is not a hack’, I can decide myself thank you, and if one person said it that should be enough.And this might seem a snobbish mac thing but it’s GNU and they have windows and linux version (including source) of their software for download and it actually is a hack since you put a camera behind a paper and then turn down the brightness of it to only capture the lightpoint and you can draw.And they even have a howto on how to build an enclosure.So don’t be put off by the keynote similarity, it’s not apple-clamped-down nonsense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187687",
"author": "stol24",
"timestamp": "2010-09-29T12:46:08",
"content": "@Michaël Golden star ! :Pp@jaded Sad and unimaginative; jaded by life? You do understand that buying paint to draw something for all people to see, while not expecting any economic benefit from this endeavour, does not have a canine equivalent.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187706",
"author": "albo",
"timestamp": "2010-09-29T14:22:15",
"content": "i’m confused, but not beyond being able to be convinced. neat project, but can someone make the case to me?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187748",
"author": "Whatnot",
"timestamp": "2010-09-29T16:42:01",
"content": "I’m a bit surprised that they had to invent that GML format since I would have thought it existed already.It is very similar in scope to the CNC G-code language I could not but help notice, and perhaps they should have simply xml’ed’ that.Also, the acronym is already in use for several things including ‘Generalized Markup Language’ and ‘Geography Markup Language’ and it’s not too handy to have several markup language called GML IMHO, and those formats are also all very similar in what they dscribe to confuse matters even more.Oh and then there are ‘Graph Modeling Language’ and ‘Generative Modeling Language’, I have no idea where it all stops.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187749",
"author": "WhatGraffitiIs",
"timestamp": "2010-09-29T16:45:01",
"content": "What most of the posters here fail to realize that “Graffiti” has evolved beyond tagbombing and hitting trains.We have top notch artists here producing work LEGALLY. The art museum, coordinating with a local building owner commissioned a 4-story 54ft wide mural. The mural is a hit with the local community here.I really like the depth effect that’s added based on the speed of the artists stroke. Nice work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187782",
"author": "Mike",
"timestamp": "2010-09-29T18:40:04",
"content": "It seems the Macworld video is distracting from the main point of the first video: Free and Open Source project Graffiti Analysis is now at version 3.0. I’m not sure why it was so unclear, since HAD prefaced the videos by saying pretty much exactly that.The huge amount of applause threw me for a bit at first. I wondered why so many people suddenly were applauding a product that already existed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188054",
"author": "Moss",
"timestamp": "2010-09-30T06:37:58",
"content": "This is brilliant. The applications for this might me limited but that is beside the point.@thetruthhertzYou might want to check out Banksy’s work. I’d hardly call that an equivalent to pissing on a tree.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188612",
"author": "this is for people",
"timestamp": "2010-10-01T07:14:50",
"content": "this is for people that like to talk about graf at art shows and digital expos",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "200502",
"author": "Eli",
"timestamp": "2010-10-21T17:58:36",
"content": "This is so totally neat. Tech + Graffiti = <3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "348066",
"author": "hills solar",
"timestamp": "2011-03-04T13:24:41",
"content": "Awesome blog post, loads of superior facts. I am going to point out to my friends and ask them the things they think.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,366.838365
|
||
https://hackaday.com/2010/09/28/photo-booth-for-a-wedding/
|
Photo Booth For A Wedding
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"photo booth",
"PVC",
"serial",
"wedding"
] |
[Joe Bain]
built a portable photo booth
for his wedding. We’ve looked in on photo booths before, both as a robust feature
in your apartment
and as
a mobile option
. But making it part of a wedding reception is the best reason we’ve found to build one. [Joe’s] electronics consist of a laptop, camera, screen, and a big pushbutton that interfaces via a serial cable and adapter. He found some software that was written for photo booths which takes care of almost everything including polling the “go” button.
The booth itself is a frame build from PVC pipe (another chance to use
those fancy fittings
) with fabric dividers hanging from it. This is fun for the wedding-goers and it produces a bit of nostalgia for your scrapbook.
| 28
| 27
|
[
{
"comment_id": "187325",
"author": "Jason",
"timestamp": "2010-09-28T17:59:28",
"content": "I built one for my wedding and have been renting it out to defray costs. Total cost was several times what a rental would have been, but I’ve been having fun with it. It’s certainly not a money-maker, though. To do it right (i.e., something solid enough to use for multiple events and with reliable equipment for the printer, etc.) you are looking at a few thousand dollars.But it was a lot of fun and my guests loved it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187331",
"author": "tomas316",
"timestamp": "2010-09-28T18:13:23",
"content": "I built one for a friends bar. I used a laptop, inkjet printer, webcam, and a big red button to start the whole process. Some scripting in linux and i was done. My cost was around 300$. I warned him that the cost of the consumables would be quite high. I guess Redbull has one they cart around and their costs were several thousand dollars every month, so he abandoned the idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187333",
"author": "Masta Squidge",
"timestamp": "2010-09-28T18:23:52",
"content": "But, if you have a good quality photo printer and can access free software, the out of pocket cost for the project could be reduced A LOT.Hunt down some scrap parts to rig up a durable, yet user friendly button (get a staples easy button, repaint the text… BOOM) and run the software on a netbook. Win.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187335",
"author": "noone",
"timestamp": "2010-09-28T18:32:05",
"content": "http://hotfile.com/dl/67556289/98014d9/DSLR.Remote.Pro.v2.0.rar.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187337",
"author": "Derek",
"timestamp": "2010-09-28T18:38:08",
"content": "I am not sure how most peoples weddings go, but at mine the people usually get pretty drunk, I would put it almost in a door way, So people can get pics on there way through and then get drunk pics on the way out. Possible motion activated with a 30 second delay? Almost like a trail Camera?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187391",
"author": "Jason",
"timestamp": "2010-09-28T19:59:58",
"content": "I looked everywhere for free software (mostly out of principal, since the $85 I paid for the software was a tiny fraction of the event costs and ended up being well worth it). I couldn’t find any–if you could point to the scripting you did in Linux that would be much appreciated.BTW, if you steal the DSLR Remote Pro software using that link above, you’re stealing from a real programmer, a one-man shop run by a guy named Chris Breeze. His product is very fairly priced for pro-quality software and there is a free trial version if you just want to mess around with it. Ripping off M$oft is one thing, ripping off a genuinely nice guy and very hard-working programmer is pretty sleazy. If you want it free, build your own and open source it, no need to mess with Chris.Inkjets aren’t the way to go. They’re slow, unreliable, and prone to smudges as well as bleeding when they get wet (from wet hands from holding a drink with condensation or spilling a drink on it).To do it right, you need a solid dye-sublimation printer. You can get cheap canon dye-sub printers that are slow but good for a single event. If you want to use this for multiple events, a Sony UPCX1 is the preferred option for photobooths. High-quality prints, they sell a perforated paper specially designed for photobooths, and the consumables cost is pretty low, about $100 for a 3-hour event with heavy use.Red Bull would have to be putting out a LOT of prints to go through thousands of dollars a month.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187393",
"author": "fast50",
"timestamp": "2010-09-28T20:03:09",
"content": "Good idea but I think this project is not that great for a article on Wired. He uses off the shelf software $175 and a $600 camara. Where is the cool part? That he built a pvc box and hung a cloth? I was kind of expecting some type of free or reasonable free software that would work with a point and shoot and a big button to trigger the picture with a LCD to display what it took.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187400",
"author": "Jason",
"timestamp": "2010-09-28T20:16:55",
"content": "@fast50You could do this with $85 software and a cheap point-and-shoot from eBay (or your existing digital camera might work) to keep costs down, which is what I did. I think the original guy was looking for an excuse to buy a nice camera. You certainly don’t need a $600 camera.If you have a newer laptop or nettop with a webcam built-in with resolution above 1 mp, you might even be able to use that camera for something like this. You’d just have lower quality prints.There’s really no way around a lot of the costs for some of this, though–if you want high-quality prints, you’re going to have to use decent equipment for printer and camera (and lighting). How much it costs depends on what you have and what compromises you’re willing to make.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187403",
"author": "fast50",
"timestamp": "2010-09-28T20:24:18",
"content": "What software are you talking about that works with a point and shoot?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "783062",
"author": "Brett",
"timestamp": "2012-09-13T16:09:09",
"content": "could you send me or tell me how to do this with a imac? you said a kid developed it for you….could i pay you for the software?",
"parent_id": "187403",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "187411",
"author": "Jason",
"timestamp": "2010-09-28T20:34:59",
"content": "http://breezesys.com/Photobooth/index.htmHe sells different versions for different cameras. PSRemote works with older Canon Powershots. Since they stopped putting out the SDK for new powershots, you have to buy a used one from his list of supported models. Used = keeps the price down!I know that a year or so ago a kid made a cheaper hack to work with a Mac, too, but it wasn’t as automated as this.There’s also photoboof.com. Another one-man shop, but squarely aimed at professional photobooths with a $600 price tag. Nicer set of features, but there’s no way to justify the extra $500.If I knew anything about linux I’d love to put something together in that, but I expect the driver issues alone might drive one to drink…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187412",
"author": "fast50",
"timestamp": "2010-09-28T20:38:23",
"content": "Thats my point there isn’t really a under $100 option for a point and shoot. Sure you can use a web cam but they suck with image quality compared to a real still camera.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187413",
"author": "Jason",
"timestamp": "2010-09-28T20:43:42",
"content": "I used a Canon S2:http://shop.ebay.com/?_from=R40&_trksid=p3907.m570.l1313&_nkw=canon+s2+&_sacat=See-All-CategoriesYou can usually get one right around the $100 point on ebay. I’m sure there are other Canon PS models that will work with PSRemote for even less if you dig around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187422",
"author": "Jason",
"timestamp": "2010-09-28T20:58:58",
"content": "For those following along, my fixed costs are:–camera: Canon S2 off ebay, $100–software: PSRemote, $85 (I think it’s $95 now)–AC adaptor for camera from Amazon: $20 or so–printer: Sony UPCX1, $800–computer: touchscreen Asus all-in-one from Amazon, $500, but you could use your existing windoze box for free if you wanted.I don’t count the frame because that is an individual choice–you make whatever frame/cloth setup you like best for whatever is in your budget)If you want good quality prints, you can’t save on the printer, although you sometimes see that model available used for less. If you don’t care about reliability, you could buy a cheap dye-sub printer for $100:http://www.provantage.com/canon-4350b001~7CAN91U3.htmit just might not hold up for long and you’ll be forever replacing paper and ink at high cost. I don’t recommend inkjet but you could go that way if you had an inkejet lying around.So if you have a computer and photo printer already, you could do this for pretty cheap. And if you have a compatible canon camera, it gets even cheaper.The fun of this hack is mostly in the physical component assembly–designing and making the booth, picking out the right selection of camera/computer/printer for your needs, and making something really cool. You can spend as little or as much money as you want to make something that’s totally customized to your own needs. You could use a $100 printer or spend $2500 on a Shinko like they use in the photolab. You could make the frame from PVC, wood, iron, aluminum, whatever. You can use a used POS camera from ebay or spend $1500 on a fancy new DSLR with all the gadgets. You could use almost any computer. You could hack together a script in linux or buy off-the-shelf software.At the end of the day, almost everyone at a party loves a photobooth, so have fun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187438",
"author": "Hacksaw",
"timestamp": "2010-09-28T21:50:49",
"content": "Why not one of those polaroid printes that don’t use ink? It is the paper PoGo I think they are called. the local evil empire here is closing them out cheap and the paper is as cheap as photo paper.granted you are limited to wallet sized photos or stickers but who cares they are bigger than you get from most photo booths",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187477",
"author": "Raged",
"timestamp": "2010-09-28T23:21:56",
"content": "This seems like a lot of work. Why not just upload to Facebook? Let the photo users tag the snap shots and you can distribute them at a later date (or instantaneous if the user trusts your app access to their account). Let the users print it off themselfs, and you can censor if needed before upload.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187478",
"author": "Raged",
"timestamp": "2010-09-28T23:22:14",
"content": "I was talking about the printing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187524",
"author": "Marty",
"timestamp": "2010-09-29T03:28:40",
"content": "I built a couple of photobooths using 8020inc metal and photoboof software. Cheap canon Powershoot, used touchscreen, inexpensive laptop all off eBay. I can build a good quality booth and have it paid for in two rentals. Inkjets are fine if you are doing booth rentals once and awhile… Just keep a backup( they are about $60-$100 on eBay)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187528",
"author": "Timothy",
"timestamp": "2010-09-29T03:41:11",
"content": "I set one of these up for my 30th. I tried a couple of freeware/trial options and decided that I’d pay for an out of the box solution (Party Booth). Grabbed a Keyboard and took off all the keys except the ones I needed (spacebar, return and esc I think). Got a 2mp webcam and two clip on spotlights which I mounted on a monitor displaying into the booth.You don’t need massively specc’d cam’s for this because the shots are so small but good lighting is essential. Clip on halogens with a diffuser worked for me. The other trick is making sure you set your focal point about 1-1.5m away from the camera (unless you’re using something that can auto-adjust)Experimented with putting the whole thing in a tent (to give some intimacy/privacy to the shots) but it was more hassle than it was worth so I dumped the tent idea and just had it sitting at eye-height near the bar.Got about 300 shots out of 100 or so people. Also had a box of silly hats on hand, the frequency of use scaling with the amount of beverage consumed.Used a Canon pixma photo printer for printing out the shots then and there, which gave everyone something to take home with them (plus I got to keep the electronic copies)Anyway, here’s an example of what they looked like:http://www.flickr.com/photos/42204433@N00/5035368650/If anyone wants further details, feel free to hit me up on Flickr",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187666",
"author": "Whatnot",
"timestamp": "2010-09-29T10:19:09",
"content": "Maybe they should put this in voting booths :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187794",
"author": "justin",
"timestamp": "2010-09-29T18:58:30",
"content": "I do this as a side-business. It can be fairly lucrative if you have a good setup and get good word of mouth. You need a more industrial setup, though, than just PVC and a few curtains. I use a Canon G-9 and PSRemote, works like a charm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188201",
"author": "ravenacious",
"timestamp": "2010-09-30T16:31:50",
"content": "I made one of these for my wedding too. It was a bit more of a sturdy construction though, wood mostly. It took and printed out the pictures and also had a second monitor in the back that displayed random images of our families from a netbook that I hid inside. It was generally well received by our guests and we got some nice pictures from it too :o)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188875",
"author": "Widj",
"timestamp": "2010-10-01T17:52:18",
"content": "Adobe Lightroom 3 has a built in remote function now that will control most if not all newer DSLRs, including Nikon and Canon. I’ve used it for something similar but without the printing function. More for the Bride and Groom to go back and look at their friends later on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211178",
"author": "aepol",
"timestamp": "2010-11-12T02:41:33",
"content": "i’m planning to put-up a photo booth, may i ask what are the basic needs and what software best to use to have a booth?..does DSLR Remote Pro compatible with the canon ixus 100?..thank you..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213027",
"author": "NTW",
"timestamp": "2010-11-15T21:02:48",
"content": "Having a photo booth at our wedding was the best decision we made! See the video I made below. What a great way to remember the perfect day.http://www.youtube.com/watch?v=D7gYSEpy_y0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "293785",
"author": "timmy",
"timestamp": "2010-12-31T17:54:35",
"content": "anyone try using cheese linux?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3217986",
"author": "Bill",
"timestamp": "2016-09-29T17:02:57",
"content": "I am working on my own Windows PhotoBooth software. I am re-inventing that wheel for several reasons, firstly because I can, but mainly because I have some specific things I want to do that is not possible with any other available software.Mine is based on WebCam, currently getting nice results with Logitech HD cam. I also messed around with using Canon cams via USB but that is presently on the back burner.For now using a Canon Selphy Die-sub printer which puts print cost at close to 50 cents per but with what you can charge at weddings etc- still some good profit.The printing time is close to a minute but it takes close to that amount to capture the photos anyway. Only big issue with the printer is changing the paper every 20 pics. I will definitely be buying a roll based dye sub printer as soon as I do a few shows.This is mostly a hobby project but eventually plan to make it available to others.My software works great so far but pretty basic- it shows live preview, does the countdown, takes the pics and creates the final image using an overlay image, and overlays custom text etc. I am working on spiffing it up with nicer graphics, animations etc. I also have created a working Green Screen effect but tweaking that to do better fades around the edges. Mine has built in control of lighting and flashes as well as wireless control using another computer or smartphone.I also plan to make it very flexible licensing wise. You will be able to license the software based on such things as lifetime license, yearly, monthly etc- basically any number of days- even gig based so you only pay for a gig at a time.And it will eventually also have a built in DJ System accessible from your phone.If anyone has any ideas of nice features not readily available with other PhotoBooth software, let me know- maybe I can add it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3962964",
"author": "olitank",
"timestamp": "2017-09-03T21:06:07",
"content": "I wanted for my business to get a photobooth system that looked professional.I needed to install a software and hide completely the OS.Has anyone some ideas on how to get such a setup easily ?I already tried it on windows and linux and I definitely prefer linux (my opinion) when it comes to hiding the OS. Why? Basically– Windows: you install a lot of things and then you remove (hide) what you do not want. Or you can pay for Windows embedded version which i did not try– Linux: you install the minimum and then you add what you want all for freeWhat i did using ubuntu:– install Minimal Ubuntu:https://help.ubuntu.com/community/Installation/MinimalCD– to have a minimal single GUI application system:. install xorg. install matchbox-window-manager. create /.xsession:# disable blank screenxset -dpmsxset s off# start window managementmatchbox-window-manager -use_cursor no -use_titlebar no &#start the application…– the photobooth app: i used the phoyo linux version:http://www.phoyosystem.com/– to enable sound:sudo apt-get install pulseaudio alsa-base alsa-utils alsa-oss gstreamer0.10-alsa libasound2– to install a virtual pdf printer:. sudo apt-get install cups-pdf– to have a custom boot screenhttps://wiki.ubuntu.com/Plymouth– to enable ssh,scp, …:. sudo apt-get install openssh-server– intersting window managers i found by the way:. ratpoison: minimalist for keyboard, difficult to configure. flwm: good, compatible with undecorated windows. lwm: good, but not compatible with undecorated windows. wmii: the best for this kind of project",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,367.043227
|
||
https://hackaday.com/2010/09/28/single-string-servo-electric-guitar/
|
Single String Servo Electric Guitar
|
Caleb Kraft
|
[
"Arduino Hacks",
"digital audio hacks",
"Musical Hacks"
] |
[
"guitar",
"instrument",
"midi",
"music"
] |
Ah, we love musical hacks that actually play music. [Mike Baxter] is back again with a new servo electric guitar. This one, called the
physical string synthesizer
, and has only one string. He’s using two Arduinos to control the unit. One to change the midi file to a note within the string’s limits and the second to actually control the servo. It seems like that could be simplified a little bit, but we’re pretty sure his end goal was to build an instrument quickly, not learn to be a circuit ninja. Last time we saw Mike Baxter, he had built
a servo electric guitar that used a keypad for control
. You can see a video of the single string one after the break.
[youtube=http://www.youtube.com/watch?v=PrcGkLtNsY0]
[via
HackedGadgets
]
| 10
| 10
|
[
{
"comment_id": "187270",
"author": "s",
"timestamp": "2010-09-28T15:16:13",
"content": "I love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187297",
"author": "zing",
"timestamp": "2010-09-28T16:23:40",
"content": "What’s more important is he has developed a method of submitting youtube videos from the future! It was posted on the 25th, but the date in the card is the 30th!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187300",
"author": "brad",
"timestamp": "2010-09-28T16:44:19",
"content": "interesting way to mount a pickup.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187301",
"author": "Keith Baxter",
"timestamp": "2010-09-28T16:48:07",
"content": "@ zing. Umm, yeah. Well that will be my next post, but it takes three Arduinos…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187305",
"author": "jeff-o",
"timestamp": "2010-09-28T16:52:57",
"content": "Hmmm, I wonder if this could be done with a single Parallax Propeller? I bet it could even handle four strings.Super cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187309",
"author": "Slanesch",
"timestamp": "2010-09-28T16:59:48",
"content": "lol. can’t wait for your next production! hope its as cool as this one!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187322",
"author": "M4CGYV3R",
"timestamp": "2010-09-28T17:52:44",
"content": "I’d go with single-stringed Koto – since it lays flat, sounds like a Koto, and the piece of music is a traditional Japanese Koto song.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187607",
"author": "jaqen",
"timestamp": "2010-09-29T05:51:43",
"content": "I guess next version flicks the string itself?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187866",
"author": "ZeUs",
"timestamp": "2010-09-29T21:32:20",
"content": "Just when you thought it couldn’t get better:two … arduino’s..i bask in the glory",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188734",
"author": "Gösta",
"timestamp": "2010-10-01T13:12:56",
"content": "You rock!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,367.089713
|
||
https://hackaday.com/2010/09/28/solder-paste-how-to-tutorial/
|
Solder Paste How-to Tutorial
|
James Munns
|
[
"Tool Hacks"
] |
[
"paste",
"solder",
"tutorial"
] |
The
application of Solder Paste
is an essential part of short run manufacturing and prototyping. After getting back bare boards from a PCB shop, its time to get down to business and populate those boards. This new tutorial set assumes you have access to things such as stencils for your boards, but does mention a couple of resources on commercially available ways to purchase stencils. Of course, if you have a laser cutter, we can
help you out
. After getting your solder paste chops down, make sure you check out our guide to
toaster oven reflowing
.
[Thanks to P. Torrone]
| 15
| 15
|
[
{
"comment_id": "187257",
"author": "Brad Hein",
"timestamp": "2010-09-28T14:30:11",
"content": "I notice the paste is very carefully placed onto the pads in the picture without any paste in between. My understanding is that the paste can actually be slopped all over the pins and when it is heated, the solder paste starts to conjeal and stick to the plates and “automatically” just stick to the component and the pads?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187261",
"author": "Phil Fitzgerald",
"timestamp": "2010-09-28T14:50:51",
"content": "Brad, generally it can but can often leave too much solder causing bridges. With a stencil, it provides just enough in the right places cutting down repair time afterwards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187266",
"author": "cantido",
"timestamp": "2010-09-28T15:06:35",
"content": "But you don’t need to use solder paste for a lot of hobby construction.. you can solder fine pitch SMD packages just fine with a generic iron, solder and flux.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187267",
"author": "smoker_dave",
"timestamp": "2010-09-28T15:08:24",
"content": "Brad, I would imagine that if using a lead solder then your method would be OK. However lead free solder does not flow as nicely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187273",
"author": "HeBD",
"timestamp": "2010-09-28T15:16:47",
"content": "i want to know how to make a 3+ layer pcb… and my own solder paste… not to much to ask of the new recruits i hope ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187279",
"author": "Jason",
"timestamp": "2010-09-28T15:48:13",
"content": "Does anyone know what stencil holder he’s using in the tutorial? I really like the simplicity of that one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187280",
"author": "macpod",
"timestamp": "2010-09-28T15:49:37",
"content": "I have usedhttp://www.ohararp.com/Stencils.htmlfor mylar smd stencils and have been very happy. Very quick turnaround and nice person to deal with…25$ does seem expensive to me however. What else is out there?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187281",
"author": "Jake",
"timestamp": "2010-09-28T15:51:25",
"content": "There are a lot of companies that will make very inexpensive mylar stencils for you, and stenciling is the preferred method for soldering with paste (slopping it on just doesn’t seem to have good results with SMD IC’s and other fine pitch devices).Anyway, the board in the pictures could easily be soldered by hand, and it would be faster to do it that way than by stenciling it, unless you were doing a great number of them and got it down to a sort of assembly line process. Good info regardless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187318",
"author": "Addidis",
"timestamp": "2010-09-28T17:39:52",
"content": "I have been needing this for a while. I built my self an oven and so far use “the pain brush method”What i really want is a laser cnc where is the how to ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187326",
"author": "Jake",
"timestamp": "2010-09-28T17:59:30",
"content": "@AddidisSee the search function?Unless you’re willing to drop a bunch of cash, you’re better off to just buy mylar stencils. Thing is, unless you’re making many instances of the same board, stenciling isn’t really worth it to begin with…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187392",
"author": "catzburg",
"timestamp": "2010-09-28T20:01:46",
"content": "@AddidisBut the idea of a CNC paste applying machine…. hum…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187397",
"author": "catzburg",
"timestamp": "2010-09-28T20:10:51",
"content": "Never mind, i see it’s been donehttp://www.ciciora.com/surface_mount.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187497",
"author": "jarrod",
"timestamp": "2010-09-29T00:26:14",
"content": "i saw this instructable the other day, great idea, its like iron on stencil etching (the stencils are copper).if you already have a direct ink/toner method setup then you can make stencilshttp://www.instructables.com/id/Making-stencils-for-solder-paste-at-home/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187739",
"author": "Jake",
"timestamp": "2010-09-29T16:10:34",
"content": "So….. Who else here has re-balled BGA chips by hand???xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188435",
"author": "K. Townsend",
"timestamp": "2010-09-30T23:22:45",
"content": "You can indeed just ‘slop’ the paste on, and the solder mask generally does a decent job of pushing the solder into the pads during reflow, but you’ll definately have bridges on an 0.5mm pitch parts that will need to be removed after the fact. If you’re making one board, it’s not really any issue … but if you’re making 50 boards, you absolutely want to minimize any manual rework since it’s a big time consumer. That’s why it’s important to get the paste layer right the first time.If you want one-offs, though, you might find this useful:http://www.microbuilder.eu/Tutorials/SMTSoldering/SolderPasteByHand.aspxThe stencil holder was purchase from Reflow-Kit in Europe:http://www.reflow-kit.com/rkuk/order_product_details.html?p=64Hope this helps!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,368.708442
|
||
https://hackaday.com/2010/09/28/homemade-solid-propellant-rocket-motors/
|
Homemade Solid Propellant Rocket Motors
|
Mike Szczys
|
[
"chemistry hacks"
] |
[
"motor",
"potassium nitrate",
"propellant",
"rocket",
"solid",
"sugar"
] |
[KoD] and [Navic] are
building solid propellant motors
using sugar and potassium nitrate. They cook up the two ingredients along with water and a bonding agent. They find that corn syrup is particularly good for bonding and that cooking the strange brew is more of an artform than science. Either way, the video after the break is proof of the dangers involved in this hobby. Testing the engine thrust with a bathroom scale ends badly for the scale.
There is something satisfying about the ingenuity that goes into the materials. For a casing they’re using PVC pipe, and forming a cone to focus the thrust by using a what amounts to plumber’s epoxy putty. The capping agent for the finished motor is ground up kitty litter.
This is an interesting read, but for now
we’re going to stick to water rockets
.
[youtube=http://www.youtube.com/watch?v=0_mze6kZb94]
| 42
| 37
|
[
{
"comment_id": "187240",
"author": "ClutchDude",
"timestamp": "2010-09-28T13:41:18",
"content": "A good book that discussed this was “The Art of Living Dangerously”. I think he used Dextrose instead of sugar though.Good book though. Walks you through the basics and gives references for you to read further.(http://www.amazon.com/Absinthe-Flamethrowers-Projects-Ruminations-Dangerously/dp/1556528221)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "643950",
"author": "jdbob",
"timestamp": "2012-05-03T23:09:19",
"content": "Dextrose is sugar",
"parent_id": "187240",
"depth": 2,
"replies": [
{
"comment_id": "771633",
"author": "Greenaum",
"timestamp": "2012-09-05T04:35:39",
"content": "Dextrose is _a_ sugar. There’s a fair variety of different sugars just in the stuff people eat.",
"parent_id": "643950",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "187243",
"author": "Bill",
"timestamp": "2010-09-28T13:48:28",
"content": "Just figured I’d drop a note, as this is a hobby I am in to.Experimental rocket motors are a lot of fun, but definitely are a time and money consuming hobby – don’t jump in if you want to fly cheaper than commercial reloads, it won’t happen.Also go slowly and be careful. While these processes can be safe, be prepared for the worst case scenario, work small, refine. It took me months to get to my first static test, and over 1.5 years to my first flight!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187245",
"author": "Matt",
"timestamp": "2010-09-28T13:50:15",
"content": "There’s a whole group of hobbyist rocketeers that make their own motors (“research motors”). Typically research motors are safer than what is being built here. Instead of PVC and epoxy putty, they use machined aluminum cases with metal closures and real machined graphite nozzles. There is some initial investment, but with proper construction, research motors can be just as safe as commercially made motors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187250",
"author": "ejonesss",
"timestamp": "2010-09-28T13:59:29",
"content": "as soon as you get a new scale you could try turning the rocket upside down and have a rig to hold it in place and fire it into the scale.by doing it upside down the the flame shoots up and you may just dent the cone if you are lucky.also for safety you may want to do this outside because the smoke who knows what is in the smoke.also you dont want to burn down your house or breath the gases from the rocket.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187254",
"author": "Richard",
"timestamp": "2010-09-28T14:11:21",
"content": "they probably arn’t getting enough back pressure to justify that size of expansion ratio, hay it might not even be supersonic. Some of the motors also seem to suffer combustion instabilities (popping and buzzing noises) possibly the throat is too small?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187258",
"author": "Tom",
"timestamp": "2010-09-28T14:34:54",
"content": "Reminds me of when I first heard of this stuff (rocket candy).These guys are the main men to be looking at:http://www.jamesyawn.com/rcandy/index.htmhttp://www.nakka-rocketry.net/I’ve spent many an hour admiring their work…Quck side note for any UK readers; Don’t.This (the mixutre of a solid fuel and oxidizer) would put you terribly afoul of quite a few of our laws (think Guy Fawkes…)Still, wicked cool stuff.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "480830",
"author": "HomelyPoet",
"timestamp": "2011-10-15T20:24:53",
"content": "“Remember, Remember, the Fifth of November, the Gunpowder Treason and plot, for I know of no reason why the Gunpowder Treason should Ever be Forgot.”“Voilà! In view, a humble vaudevillian veteran, cast vicariously as both victim and villain by the vicissitudes of fate. This visage, no mere veneer of vanity, is a vestige of the vox populi, now vacant, vanished. However, this valorous visitation of a bygone vexation stands vivified, and has vowed to vanquish these venal and virulent vermin vanguarding vice and vouchsafing the violently vicious and voracious violation of volition! The only verdict is vengeance; a vendetta held as a votive, not in vain, for the value and veracity of such shall one day vindicate the vigilant and the virtuous. Verily, this vichyssoise of verbiage veers most verbose, so let me simply add that it’s my very good honour to meet you and you may call me V.”",
"parent_id": "187258",
"depth": 2,
"replies": [
{
"comment_id": "771636",
"author": "Greenaum",
"timestamp": "2012-09-05T04:41:22",
"content": "Oh gods, the film was *terrible*! Read the book, dude! Reduce the world’s level of sucking ass!Still, it can be ignored, I’ve only really seen it twice, and soon recovered from the rage-induced stroke I had after seeing how horrible, clumsy and thick-headed the whole thing was.Seriously, the book is so good! One of the few best books I’ve ever read! The film is a cheap insult, but then that’s Hollywood.",
"parent_id": "480830",
"depth": 3,
"replies": []
}
]
},
{
"comment_id": "1835614",
"author": "Flash",
"timestamp": "2014-09-17T20:32:22",
"content": "you Brits have TOO many laws(eg- firearms)",
"parent_id": "187258",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "187264",
"author": "Chuckt",
"timestamp": "2010-09-28T15:01:56",
"content": "My relatives are into model rocketry and they read about this guy who would cook his motors in the oven and hold a fire extinguisher with one hand and eat popcorn with another. He allegedly set his kitchen on fire more than once.A man who works in the industry said his boss had to read two stacks of books on static electricity because even the professionals have problems. Usually they are made in a building in Arizona or somewhere where there is lots of desert so they don’t harm anyone and occasionally they need a new building because the stuff destroys the building. What are you going to use to mix the stuff? Are you going to use motors? That produces static electricity.I was discouraged by an article I read by a twelve year old called “The Day I blew my fingers off.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187272",
"author": "Volfram",
"timestamp": "2010-09-28T15:16:43",
"content": "Cool stuff! Rocket engines are very difficult to find these days.(I’ve heard the Estes model rocket company went out of business. Sad days.)ejonesss: they did. It provides very little thrust for several seconds, and then smashes the scale.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187276",
"author": "avrpunk",
"timestamp": "2010-09-28T15:34:14",
"content": "@Mat “Typically research motors are safer than what is being built here.”No, aluminum tubing is not safer that PVC, but PVC is not very safe either.A safe motor will use a stiff paper tube, and bentonite (aka kitty litter clay) nozzles. If it malfunctions due to a crack in the fuel grain it will blow up without throwing metal fragments through your eyes and brain. Keep metal out of it, same with lumps of epoxy, etc.For bigger motors (beyond backyard rockets/fireworks), you should probably go with liquid fuel and oxygen, then you need metal, and it’s a whole different thing with different safety requirements. The reason is that it’s more difficult to make sure the fuel grain in a solid rocket of size doesn’t have cracks in it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187277",
"author": "danman",
"timestamp": "2010-09-28T15:46:00",
"content": "So I have Sodium nitrate, but no potassium nitrate. I’m finding it very hard to get. Would the sodium version work? I have tried burning it before, I have observed it burns a solid orange vs the purple of the potassium.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187299",
"author": "mccoywm",
"timestamp": "2010-09-28T16:37:53",
"content": "Potassium nitrate aka stump remover at Lowes, or any other home store. Also be careful there is a large whole in the kitchen table from my younger days messing with this stuff when I had a batch ignite.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187310",
"author": "Germanguy",
"timestamp": "2010-09-28T17:00:59",
"content": "This so reminds me of “Rocket Boys” by Homer H. Hickam.If you haven’t read it, do it now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187312",
"author": "bob",
"timestamp": "2010-09-28T17:15:47",
"content": "@danmanSodium Nitrate will work much like potassium nitrate but you won’t get the cool blue flame :)This is a lot of fun. The best one I made jumped over a wall backwards during a static test: The end cap blew off (putty) and it made enough thrust out the top to actually fly :)garden centre staff in the UK look at you funny when you ask for fertilizer that contains potassium nitrate :DI got some potassium or sodium nitrate off ebay in the UK and no swot team appeared at my door but I was never quite sure how legal buying it was. I reckon buying it is fine but mixing it with sugar makes it an explosive and making an explosive without a license gets you in a lot of trouble. I think there are amateurs with licenses in the UK but it’s a whole lot of trouble.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187314",
"author": "projectbluebook",
"timestamp": "2010-09-28T17:34:21",
"content": "yeah, KNO3 is not a good thing to have around unless you know exactly what you are doing and have a thorough knowledge of antistatic precautions.Interestingly a little while ago I read about a guy who made solid rocket motors using used motor oil, epoxy (the boat repair stuff FWIW) and bubbled oxygen through the curing mix while spinning it at just the right speed to make the bubbles distribute in the correct pattern for a smooth burn.needless to say unless you are experienced this is best avoided as well, considering that O2 is known to make even non explosive materials ignite violently with no warning .. !btw under the Stasi (cough Nu Labour /cough) laws even ordering the materials can get you in “deep doodoo” so watch out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187315",
"author": "mjrippe",
"timestamp": "2010-09-28T17:34:51",
"content": "I love the CATO reel on their site where they are doing static tests in dry grass! I’m sure they had an extinguisher handy…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187316",
"author": "cknopp",
"timestamp": "2010-09-28T17:35:48",
"content": "Good writeup… Why was I expecting thermite?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187385",
"author": "MikeS",
"timestamp": "2010-09-28T19:47:45",
"content": "I remember a book about this… Their recipe was melted Caramel cubes, into which the KNO3 was mixed. Caramel is (lets face it) sugar with a binder, and it should be easy to deduce the actual sugar content so you can plug it into his recipe.The caramel is melted in an electric temperature controlled frying pan, outside, please, and stirred with a wooden spoon. The other bonus is, it’s easy to cast in it’s melted form, and I suspect, it’s not brittle when hardened. Probably smells nice too! Please be careful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187416",
"author": "smaddox",
"timestamp": "2010-09-28T20:49:37",
"content": "@MikeSIf static electricity is an issue, wouldn’t it be better to use a metal spoon, with a ground wire attached to it?Just a thought.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187462",
"author": "rasz",
"timestamp": "2010-09-28T22:42:34",
"content": "All you need is a pipe from a road sign.. and a hand grenade.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187480",
"author": "Jak_o_Shadows",
"timestamp": "2010-09-28T23:26:55",
"content": "Personally, if i was to ever do this (which i am, eventually) when mixing, igniting, etc, I’d be standing behind a brick or concrete wall. Sure, i’d have cameras on it, but screw mixing it when i’m in reach of somewhere i can get hurt.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187489",
"author": "macona",
"timestamp": "2010-09-29T00:12:59",
"content": "Here is a great book on design and testing of small liquid fuel engines:http://gramlich.net/projects/rocket/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187527",
"author": "octel",
"timestamp": "2010-09-29T03:39:55",
"content": "DIY rocketry results in explosions, sooner or later. it’s best to not be in the way of shrapnel, but faced with a choice between metal or plastic shrapnel I’d choose the metal any time.PVC won’t show up on an xray and exploratory surgery isn’t fun at all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187531",
"author": "octel",
"timestamp": "2010-09-29T03:43:53",
"content": "For those of you interested in DIY rocketry but living in a country affected by paranoia, please check out hybrid rockets. They use nitrous oxide and a solid fuel, which can be anything from paraffin to rubber to acrylic.This is the same design as used on SpaceShipOne.http://www.aeroconsystems.com/motors/Screamer_folder/screamer.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187534",
"author": "Tom",
"timestamp": "2010-09-29T04:00:35",
"content": "Since 9/11, doing without official permit, anything that has to do with pyrotech or explosive compounds, has been “up-rated” from being punishable as a misdemeanor to a felony in many states and countries. In some places, public opinion on doing things like this goes right with child molestation. No. I’m not making this up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187537",
"author": "Leithoa",
"timestamp": "2010-09-29T04:14:26",
"content": "@ danman, yes sodium nitrate will work, but your fuel will absorb more water from the air than it would if you had potassium nitrate.A lot of their engines seemed to be very poorly constructed. Rather than pour in the propellant they should tamp it in, this would reduce the sputtering and CATOs they’re experiencing.Ideally the entire motor assembly should be mounted on a mandrel that forms the core whilst tamping in the fuel.Priming the core with black powder would increase performance of their engines and ensure a more uniform burn rate. There are black powder recipes that only use charcoal and potassium nitrate so they wouldn’t have to buy anything else.P.S. Keep your propellant grains under ~65g to keep the BATFE happy.+1 for nakka rocketry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187539",
"author": "Rachel",
"timestamp": "2010-09-29T04:24:51",
"content": "Static electricity is not an issue with this mixture. Sucrose is fairly hygroscopic, so the water tends to dissipate any charge. Nor is the mixture impact sensitive.In my opinion, the most dangerous part of this is melting the mixture. It’s very easy to ignite this way. I make all of my rockets by pressing the finely powdered mixture into the tube. The performance difference is negligible.I agree with PVC casings being a bad idea. Polyethylene or cardboard is the way to go. If an explosion occurs, PVC creates shrapnel, polyethylene splits harmlessly, and cardboard isn’t massive enough to hurt anything. I prefer used roman candle tubes.Bentonite nozzles work very well, and I’ve also had good luck with plaster. Never use fuses to ignite homemade pyrotechnics. Always use electrical ignition so you can stay as far away as possible. It’s very cheap and easy, so there’s no excuse not to. I have a couple guides on my website.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187614",
"author": "elektrophreak",
"timestamp": "2010-09-29T06:26:51",
"content": "i remember making these candy rockets when i was younger, they worked pretty well! i still have some KNO3 left in the house so i might make some smoke b-0-m-b-s because these things produce more smoke than thrust :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187669",
"author": "Scott",
"timestamp": "2010-09-29T10:40:14",
"content": "The test videos rock – obviously done under cover of night. The soundtracks verge on the pornographic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187704",
"author": "Navic",
"timestamp": "2010-09-29T14:12:13",
"content": "Thanks for all the comments guys! If I knew where to get N2O I’d do up some hybrids for sure. Might have to look deeper into that stuff when I get a chance.@MikeS – thanks for the caramel cube tip! I’m gonna try that out for sure, mostly because casting our mixture after cooking must be done very quickly due to the hardening factor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190499",
"author": "Alex Holsgrove",
"timestamp": "2010-10-04T10:30:26",
"content": "Great video and a great project. Very dangerous though – especially reading about drilling through the fuel mixture to allow proper burning. My uncle and a friend of his made a similar mixture and encased in in metal pipes (to blow up dead tree roots). The friend hammered the pipes generating heat and probably a spark – igniting the mix. He now only has 1 hand. Please be careful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213565",
"author": "macw",
"timestamp": "2010-11-16T21:57:58",
"content": "@alex — that’s because your dad’s friend made what is called a “pipe bomb”, not a rocket engine. As people have been saying, using a cardboard or polyethylene (think plastic milk jug material) tube will reduce the risk of a dangerous explosion. You might get a big fireball and burn off some hair but you’re much less likely to lose anything that won’t grow back.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214375",
"author": "Hacksaw",
"timestamp": "2010-11-18T15:19:42",
"content": "a couple of my friends did this 25 years ago…one of them got to pay for anew kitchen in his parents house!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214665",
"author": "Scruter",
"timestamp": "2010-11-18T20:57:22",
"content": "combining the mixture is an art. my father is still mad at me about that Hacksaw. After trying to combine the mixture in a coffee can before transfer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "771780",
"author": "LARRY",
"timestamp": "2012-09-05T08:09:46",
"content": "The best resource for this kind of thing I’ve found is:TITLE: THE ROCKET MANUAL FOR AMATEURSBY: CAPT. BERTRAND R. BRINLEYPUB: BALLANTINE BOOKSCOPYRIGHT 1960I used the instructions in this book as a kid in the 60’s put Rockets up several thousand feed. Some groups broke over 100,000 feet.The book goes into great detail on how to do things safely. It covers sugar based propellants as well as zinc/sulfur propellants in detail.It is long out of print but used copies show up at bookfinders.com from time to time. I have also been told that it can be downloaded but haven’t been able to find it.FUN HOBBY THAT CAN BE SAFE TOOLARRY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1799304",
"author": "Jerry Attrick",
"timestamp": "2014-09-08T02:16:25",
"content": "Lack of uniformity in the density of the rocket engine ….or “bubbles” in the solid structure…..can lead to DDT or deflagration detonation transition. KABOOM! This DDT phenomenon is quite interesting….especially if it can be controlled. ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5599040",
"author": "Prfesser",
"timestamp": "2018-12-15T19:39:35",
"content": "Coming into this very late because I didn’t know about the article until 15 Dec 2018:https://hackaday.com/2018/12/14/arduino-powered-rocket-test-stand/Some background: I’ve taught college/university chemistry for 36 years, co-authored six editions of two chemistry textbooks, given one or two small pyrotechnics shows annually for over 20 years, written articles for the late “Extreme Rocketry” magazine, and made rocket motors of various types for almost 30 years. I still have all ten fingers. :-) This is gonna be long, so you’d better go pee before you start reading…–I’ve always tried to avoid using the words “safe” and “propellant” in the same breath; “low hazard” is preferred. A G-motor containing just two ounces of low-hazard propellant (APCP) can lift itself and a well-designed rocket a mile into the air, nearly reaching mach 1 on the way up…..and close to that speed on the way down, if it comes in ballistic.–The sensitivity of a pyrotechnic mixture to spark, flame, friction, impact varies enormously depending on the mixture’s composition and preparation Examples: black powder (KNO3:charcoal:sulfur) is highly sensitive to sparks and flame but quite insensitive to pressure and impact. Armstrong’s mixture (KClO3:red phosphorus:Sb2S3) is extremely sensitive, period; it has been known to ignite simply from carelessly opening a container of the mix. OTOH ammonium perchlorate composite propellant (APCP), the sort of mixture used in space boosters, can be quite difficult to ignite deliberately, let alone accidentally. An extremely detailed list of impact sensitivities of various compositions can be found in “Fireworks from a Physical Standpoint, Part IV” by Takeo Shimizu",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5601495",
"author": "Prfesser",
"timestamp": "2018-12-16T12:49:04",
"content": "Continuing:–Aluminum tubing is more hazardous than paper casings, much less hazardous than PVC. The vast majority of commercial high-power motors use aluminum casings; most of these will handle pressures well in excess of 1000 psi.–Nakka’s site describes “sugar” motors in tremendous detail. Sorbitol and other sugar alcohols as the fuel with KNO3 oxidizer are less hazardous and melt at much lower temperatures than table sugar mixtures. These types of propellant provide considerably higher specific impulse than blackpowder, though less than APCP.–Liquid and hybrid engines/motors involve a lot of plumbing and engineering and early efforts are much more likely to undergo a RUDE (Rapid Unscheduled Disassembly Event :-)) than solid motors. It’s worth noting that the Tripoli Rocketry Association ordinarily allows only APCP and “sugar” motors at its Research launches. Homemade liquid/hybrid engines require special permission from the BoD.(I am attempting to post additional comments but HaD isn’t letting me do so, at least so far. Says I’ve already posted them… :-/)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.25178
|
||
https://hackaday.com/2010/09/27/work-for-hack-a-day/
|
Work For Hack A Day
|
Caleb Kraft
|
[
"News"
] |
[] |
HackADay.com, a well-known and respected blog dedicated to all things hardware and hacking related, is looking for knowledgeable and passionate writers to join their team of specialized and dedicated freelance writers. This is a paid, freelance position that requires professionalism, consistency, and reliability in both writing style and deliverables. We’re eager to track down and bring in some of the most passionate folks out there in the software/hardware/tech & hacking world. We pay our writers a solid per-post rate and we’re ready to take HackADay to the next level with more content across a wider array of interests and expertise. If you’re a good writer that loves the kind of stuff we talk about, then we want
you
to be behind the growth and dominance of this household name in hacks.
All hardware/hack/tech junkies encouraged to apply, but folks with experience in the following fields will get bonus points:
–circuitry design
–robot building
–mobile device programming
–full desktop application programming
–computer security
–gritty hardware fabrication
–modifying existing systems
If you’re ready to join HackADays’ team of top-notch freelance writers, apply through our
ONLINE JOB BOARD
. Formal resumes are welcome, but cover letters with links to blogs, writing samples or any portfolio work is really what we’d like to see. Here’s an idea of what to include:
A short bio about yourself
3 example daily posts written in the style of Hack a Day
3 software or hardware how-tos you’d like to see on the web. For examples of work we’ve done in the past, look at some of our project summaries, How-tos, and software tutorials.
A couple sentences on how you would improve the site either through features or content
Any additional reasons why you would make a good fit for Hack a Day
Thanks for your interest!
| 48
| 45
|
[
{
"comment_id": "186708",
"author": "Donov4n",
"timestamp": "2010-09-27T21:31:21",
"content": "So, how much do you guys pay for that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186710",
"author": "Shae Erisson",
"timestamp": "2010-09-27T21:32:16",
"content": "While I would like to write articles for Hack-a-Day, I wouldn’t be able to produce more than one a month or so, and I don’t really care about getting paid.Do you have some way for people to submit articles that are more than just urls to interesting webpages?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186720",
"author": "M4CGYV3R",
"timestamp": "2010-09-27T21:45:45",
"content": "I’d love to write for HAD, but I think I’m generally too cynical and I hate Arduino.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186724",
"author": "fermicirrus",
"timestamp": "2010-09-27T21:54:50",
"content": "@M4CGYV3Rdo you hate arduino because it’s an easy to use learning platform?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186738",
"author": "MS3FGX",
"timestamp": "2010-09-27T22:07:26",
"content": "FYI, while the post says that formal resumes are not required and you would rather see practical examples of our work, the online form won’t let you submit your application without attaching a resume to it.I attached a laughably outdated one as that was all I had, but perhaps this could be fixed for future applicants?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186743",
"author": "Erik Johnson",
"timestamp": "2010-09-27T22:15:35",
"content": "Ardino aficionado isn’t #1 for bonus points? (cough)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186760",
"author": "martinmunk",
"timestamp": "2010-09-27T23:01:04",
"content": "I wouldn’t waste your and my time writing an official submission so maybe you could answer me this in short:I’m a 20 y/o “man” and i don’t have any previous history in blog-writing.BUT: Just finished school here in Denmark where i was in the “top of my class” in electronics and programming and all of the seven bonus-points topics apply to me.As of now i have some-what a lot of spare time on my hands.Would you be interested in me as a writer?Thanks. – Martin Munk",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186765",
"author": "vonskippy",
"timestamp": "2010-09-27T23:06:30",
"content": "@martinmunk – you could probably make more money helping your uncle fight crime.What was that???? It’s Monk not Munk.Nevermind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186770",
"author": "martinmunk",
"timestamp": "2010-09-27T23:28:34",
"content": "Haha :DTbh it means Monk in danish :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186771",
"author": "Spork",
"timestamp": "2010-09-27T23:31:40",
"content": "Think HaD pays more than my current employer?@fermicirrusPerhaps he dislikes the arduino platform because often times it is considered part of a finished product and does not push people to learn. I don’t expect everyone to be an engineer, but I would like that people try to understand what they’re doing.@vonskippy,I would assume Munk to be his surname.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186772",
"author": "Spork",
"timestamp": "2010-09-27T23:32:10",
"content": "*I stand corrected, danish word for monk.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186789",
"author": "anonymous",
"timestamp": "2010-09-28T00:07:55",
"content": "@martinmunkIf you’re not motivated enough to “waste time” filling out a very simple application, then I’m guessing they probably aren’t interested in you. I wouldn’t be anyway… If someone is seeking employment from me, but complains that the application is too much work, what does that say about their enthusiasm for the job and how much effort they are willing to put into it? (all of this is independent of the fact that you already said you had a lot of free time – why not USE IT for the application?)I don’t mean to offend, but also keep in mind that this application is meant primarily to demonstrate your writing skills, which is a pretty important factor in selecting someone for a job as a *writer*. It’s probably a given that a LOT of HaD readers fulfill at least a few of those bonus points.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186791",
"author": "Rotopeon",
"timestamp": "2010-09-28T00:15:23",
"content": "Not a hack ;-)good luck HADhope youl find writers up to your current standard",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186793",
"author": "martinmunk",
"timestamp": "2010-09-28T00:17:52",
"content": "Munk is also my sirname, yes.@anonymousI agree with you completely, and it was in my thoughts. Mostly, i was very unsure of my own chances an wanted someone to either get my hopes up or tell me that a loong portfolio was probably required to even dream about the position.Think i will give it a shot in the morning. Thanks for your opinion. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186797",
"author": "M4CGYV3R",
"timestamp": "2010-09-28T00:26:33",
"content": "@fermicirrusI hate Arduino because it’s dumbed-down version of plenty of other things that already exist/existed in the EE community.It is largely responsible for recent EE enthusiasts’ inability to understand and work with the raw components. It does all of the real work for you, so you can get by without truly learning the systems you are building with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186809",
"author": "anon",
"timestamp": "2010-09-28T00:52:48",
"content": "@M4CGYV3RDepends which way you look at it.It helps starters get started. It gives pro’s a rapid development system and it gives everyone else something to play with.It’s human nature to learn more, people aren’t going to stick to arduino and not budge ’cause it cuts out the real work’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186818",
"author": "spiff",
"timestamp": "2010-09-28T01:26:42",
"content": "Can anyone tell me if the writers are responsible for finding projects themselves? Or are all the articles based on submissions to the site, which then get distributed to the writers? Perhaps a mix of both?Thanks to anyone who can answer this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186845",
"author": "spyder_21",
"timestamp": "2010-09-28T02:05:10",
"content": "like the 1st post. I work 10hours a day, but would like to maybe do some freelance work free of charge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186846",
"author": "spyder_21",
"timestamp": "2010-09-28T02:06:02",
"content": "sorry…..like the 2ND POST… Shae Erissonlike the 1st post. I work 10hours a day, but would like to maybe do some freelance work free of charge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186862",
"author": "HFH",
"timestamp": "2010-09-28T02:40:51",
"content": "@martinmunk:“BUT: Just finished school here in Denmark where i was in the “top of my class” in electronics and programming and all of the seven bonus-points topics apply to me.”BUT WHO CARES?Why do you think an uni degree makes you better than the rest of us? Most of the best hackers didn’t finish their uni because they realized it’s waste of time/money and they don’t learn anything useful. BUT you have advantage over us by applying for a normal fulltime position cause you have your toilet paper which is good for HR to cover their asses in case you don’t work out (uhm but he had a degree).So how about instead of writing about your “marks” write about your experience and personal projects.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186885",
"author": "kirov",
"timestamp": "2010-09-28T03:23:19",
"content": "I would like to be a writer, I have a long history of being a productive and prominent member of hackaday and based off of my past experience I’m sure you’ll find me more than qualified for this job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186976",
"author": "Necromant",
"timestamp": "2010-09-28T04:34:48",
"content": "Hm, nice job… Too bad I live far outside US and have another approaching deadline on my head.Anyway, Good luck. Hope you’ll find someone who hates .net and other MS crap =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187011",
"author": "Rollyn01",
"timestamp": "2010-09-28T05:16:06",
"content": "Seems like being a writer for HaD is more about your ability to research the subject than actually having formal knowledge of the subject( college educated). As such, you’re better off making a portfolio of sample posts than throwing a degree at them. People don’t care much where you got your knowledge from as long as it is accurate and usable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187019",
"author": "pRoFlT",
"timestamp": "2010-09-28T05:22:44",
"content": "Need someone to evaluate the woot products for HAD? :)There was a great robot the other day on woot that would have been perfect for a HAD hack.Roboni-i Gaming RobotYour friends at engadget already did a review on it.Maybe a good idea would be to pay people for the hacks submission if it gets used on HAD? You would have a lot of people submitting there hacks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187077",
"author": "Alan Parekh",
"timestamp": "2010-09-28T06:08:19",
"content": "Glad to see you are looking for a new writer, can’t wait to see additional posts!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187135",
"author": "ftorama",
"timestamp": "2010-09-28T07:38:05",
"content": "Well,how could this happen with foreign writers?I’m french and have tons of articles to propose and it would be great to see them on HAD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187160",
"author": "James",
"timestamp": "2010-09-28T09:06:10",
"content": "Don’t think I’d want to write for HaD – there are too many commenters willing to rip you to pieces because it’s not their specific choice of IC/wire/layout/post/content and barely any willing to give thanks. I’m glad someone does though!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187179",
"author": "Sean",
"timestamp": "2010-09-28T10:37:38",
"content": "Looks like a proof reader is needed as well:-“We’re eager to track down” – slang and should never be used in context. Same applies to you’re which is used later. This is a formal document attempting to attract professional writers.“All hardware/hack/tech junkies encouraged to apply”, should be “are encouraged”.“A couple sentences”, should be “A couple of sentences”.If you are trying to attract professionals it helps to do so in a professional manner.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187187",
"author": "nap",
"timestamp": "2010-09-28T11:03:22",
"content": "I’m sorry but to me this looks like a scam to get 1234123412 random applicants to write 3 articles and send 3 hacks for free!btw, spiff’s question is worth answering.off-topic:HFH, you’re more or less right but in a mediocre world in which decision makers can’t tell talent from mediocrity, the toilet paper is quite handy, unless you’re very lucky. University is a factory of wholesale worker bees alright, but in a world of blind people nobody is going to give a fuck that you can see.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "187319",
"author": "Proflt",
"timestamp": "2010-09-28T17:43:14",
"content": "I agree with nap. First thing I thought was, HAD is going to get a ton of free hacks to talk about.",
"parent_id": "187187",
"depth": 2,
"replies": [
{
"comment_id": "187323",
"author": "Caleb Kraft",
"timestamp": "2010-09-28T17:55:06",
"content": "@Proflt and nap,you do realize people submit their hacks to us all the time right? Anyway, if you don’t want to write something new, just rewrite one of our existing posts.",
"parent_id": "187319",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "187207",
"author": "Jess",
"timestamp": "2010-09-28T12:13:11",
"content": "This has me conflicted… I should put together some writing samples. Can it be a nonsensical rambling wall-of-text post about a personal project?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187208",
"author": "mccoywm",
"timestamp": "2010-09-28T12:17:53",
"content": "I take great offense to HFH’s comments. I will be graduating with my degree in December in Electrical Engineering. While you make a valid point that a degree doesn’t mean you are better than someone else, it also doesn’t mean you are “less legit”. I understand the hacking community is seen as an underground sub culture and you may think that going to a formal institution is “giving into the man” but you are mistaken. My love of electronics started well before I began college, and in the formal setting it was allowed to flourish.As far as HR wanting to cover themselves, well yes that is what they do. You may have built a million projects with an arduino, but does an employer really know that? I don’t care how many blog entries you have, or links to forum posts, this stuff doesn’t show any formal training. Attending an accredited University ensures that you have been taught certain material that the powers above feel is relevant to the field. (The powers above being industry itself)So one final comment then I will step back to get flamed. Say I have a real steady hand and a real sharp knife. I watch a ton of medical shows. All my friends come to me when they need a little procedure because they know I can do a good job. Does that make me a surgeon? No. And your weekend hacking doesn’t make you an Electrical Engineer, regardless of the fact that I’m sure you are more than skilled at Electrical Engineering.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187211",
"author": "James",
"timestamp": "2010-09-28T12:37:37",
"content": "“If you are trying to attract professionals it helps to do so in a professional manner.”If you’re looking for someone to write in a formal manner, maybe.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "187235",
"author": "Caleb Kraft",
"timestamp": "2010-09-28T13:26:07",
"content": "ok, let me answer a few questions here:–how much does it pay? —This would be discussed after you’ve passed the initial steps of sending us your info.— where do the stories come from? —they come from everywhere. Some are tips that were emailed in, some were found on the net, some were found in our own comments, some are done by us.— I have a college degree, does this put me at an advantage? —We really care more about someones ability to discribe a project well. We can’t all possibly be experts in everything we post. That knowledge can really help you understand what you’re writing about, but won’t necessarily mean you will convey the ideas well to others.— Do I need to be a professional writer with perfect grammar and a degree in english/journalism? —No. Again, we care about hacks. We would like you to be able to write well, and strive to improve constantly, but this is not a blog about writing.— I really hate (insert popular tool here), can I still write for Hackaday —Possibly, but often we see an elitest attitude toward new/easy tools. That is something we don’t want to encourage. We want to see projects from everywhere and every skill level. Lets be clear: commenters can express negative thoughts. We just don’t want our writers to be tossing good projects because the person isn’t an electrical engineer.— I don’t feel like applying, can I still write for you? —feel free to submit tips. However, if you want to write for Hackaday, you’ll need to apply.— Do I need a big portfolio of hacks to write for you? —No, it doesn’t hurt but isn’t necessary. Again, we care more about your ability to write about hacks.",
"parent_id": "187211",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "187236",
"author": "Brennan",
"timestamp": "2010-09-28T13:30:07",
"content": "I think we all know that the only viable candidate for the new HAD spot is……….Osgeld!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187241",
"author": "M4CGYV3R",
"timestamp": "2010-09-28T13:41:31",
"content": "@anon“It helps starters get started……people aren’t going to stick to arduino and not budge ’cause it cuts out the real work’”If only this were true. There is nothing helpful to a newbie about a black-box system that’s already built for you. You don’t learn from that. The only valuable knowledge to be gleaned from an arduino by a complete noob is how to plug in pin headers and a usb cable, and use their cereal box sketch system.“Give a man a fish, and he will eat for a day. Teach a man to fish, and he will eat for a lifetime” -ProverbAlso, the fact that many ‘hackers’ use arduino exclusively, often because they don’t understand enough to make their own micro circuit, disproves the second point.It’s a shortcut, and the general populous is lazy. They will use it any chance they get, and in doing so avoid actually learning how they work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187265",
"author": "Grovenstien",
"timestamp": "2010-09-28T15:03:14",
"content": "Work for HAD and prepare to handle the bitching and superiority complexes!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187268",
"author": "mccoywm",
"timestamp": "2010-09-28T15:14:59",
"content": "@Grovenstienlol, yes indeed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187274",
"author": "osgeld",
"timestamp": "2010-09-28T15:18:15",
"content": "“I think we all know that the only viable candidate for the new HAD spot is……….Osgeld!”aww shucks, If I didn’t know you were being a wiseacre I would almost be teary eyed right now",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187284",
"author": "Jake",
"timestamp": "2010-09-28T16:10:09",
"content": "@M4CGYV3RI completely agree about the “arduino’s”, and we strongly discourage their use by the electrical and computer engineering students in the student groups at my university. An arduino is great for a computer science person who knows little to nothing about hardware, and doesn’t care to. We encourage the engineering kids to prototype their own MCU boards, which helps them understand how pointless an arduino is to someone who wants to call themselves an engineer!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187317",
"author": "vonskippy",
"timestamp": "2010-09-28T17:38:16",
"content": "“–how much does it pay? —This would be discussed after you’ve passed the initial steps of sending us your info.”What a crock – what competent person does a bunch of spec work THEN finds out what the pay scale is.Hiding your pay rate guarantees you’ll get nothing but noobs and losers applying for your penny ante job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187321",
"author": "Brennan",
"timestamp": "2010-09-28T17:52:36",
"content": "@OsgeldIf you weren’t so ruthless and nit-picky (solder joints and photography? Really?) in your criticisms I would have no trouble recommending you, I can tell you know your stuff. So my comment was kind half-sarcastic",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187348",
"author": "bilbao bob",
"timestamp": "2010-09-28T19:25:33",
"content": "Ah, the joy of trying to turn social media into sale-able content with the secret hope that conde nast will suddenly discover that there’s gold in them thar geeks… and help you to secure your financial future by being an intrepid explorer of project write ups. I wish you the very best of luck.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187384",
"author": "osgeld",
"timestamp": "2010-09-28T19:47:04",
"content": "I am only ruthless and nit-picky when pro companies that noobies look up to come out with half hearted effortsand photography? I dont remember picking on photography, fact that I use a old 2mp camera and a 2 hands on tripod does not leave me much room to comment",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187466",
"author": "Kuhltwo",
"timestamp": "2010-09-28T22:50:39",
"content": "Does HAD style also include typos? Poor Grammar skills?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187929",
"author": "Sean",
"timestamp": "2010-09-29T23:27:33",
"content": "“If you’re looking for someone to write in a formal manner, maybe.”Actually two of the examples quoted don’t meet the basic rules of English grammar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "200678",
"author": "DougK",
"timestamp": "2010-10-22T03:42:20",
"content": "I was just curious since I would seriously be interested in this position, if there were a deadline or when results would formally be announced?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.094057
|
||
https://hackaday.com/2010/09/27/gpu-processing-and-password-cracking/
|
GPU Processing And Password Cracking
|
James Munns
|
[
"Security Hacks",
"Software Hacks"
] |
[
"amd",
"ATI",
"crack",
"CUDA",
"gpu",
"hack",
"NVIDIA",
"password",
"sdk",
"stream"
] |
Recently, research students at Georgia Tech
released a report
outlining the dangers that GPUs pose to the current state of password security. There are
a number of ways
to crack a password, all with their different pros and cons, but when it comes down to it, the limiting factor in all of these methods is processing complexity. The more operations that need to be run, the longer it takes, and the less useful each tool is for cracking passwords. In the past, most recommendations for password security revolved around making sure your password wasn’t something predictable, such as “password” or your birthday. With today’s (and tomorrows) GPUs, this may no longer be enough.
Although the article never mentions them by name, the newest tools in password cracking are based around two tools,
nVidia’s CUDA
and
AMD’s Stream
SDKs. These tools allow programs to be written in C that can be broken up and utilize the parallel nature of the hardware that is usually optimized for graphics. GPUs are much better at large-scale mathematical operations than CPUs because of this parallel layout. Chances are, if you have a
somewhat recent
graphics card, it is probably compatible with either CUDA or Stream, and if you already know C, you have all the tools necessary to get started.
The lesson to learn here, the longer or more complex a password is, generally the safer it is. Because of this, a number of tools, both
software
and
hardware,
may become more and more popular, or necessary, to accommodate this need.
| 53
| 50
|
[
{
"comment_id": "186690",
"author": "anonymous",
"timestamp": "2010-09-27T20:22:45",
"content": "ruh-roh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186693",
"author": "haltux",
"timestamp": "2010-09-27T20:28:48",
"content": "“GPUs are much better at large-scale mathematical operations than CPUs because of this parallel layout. “.This is generally wrong. This is true only for mathematical operations which can be splitted into a large number of small independant computations, which is not at all the most common situation.Password cracking is not exactly the typical “large scale mathematical operation”. The most typical ones are operations on large matrices, for which GPU computing is often not suitable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186697",
"author": "Navic",
"timestamp": "2010-09-27T20:53:07",
"content": "Pyrit password “testing” program has a CUDamA version that really shows the great speed benefit of GPUs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186705",
"author": "Tiago",
"timestamp": "2010-09-27T21:20:24",
"content": "Well, implement a super simple 3 wrong pass’s and need to wait 30 min or 1h, there goes the super hiper mega fast bruteforcing, even 4 letters passwords would take days.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1036337",
"author": "Adam",
"timestamp": "2013-08-05T23:50:49",
"content": "Yes, I’m reviving a long-dead comment thread. Still.I believe you misunderstand the purpose of GPU hash-cracking. In order to crack a password via this method, you need to already have the hash of the password that is stored in the system in question. The brute-force part comes when you un-hash the password: un-hashing takes a LOT of power.",
"parent_id": "186705",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "186711",
"author": "hc",
"timestamp": "2010-09-27T21:32:45",
"content": "@TiagoBut then it would be super-easy to do a DDoS attack on you",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186712",
"author": "payne",
"timestamp": "2010-09-27T21:32:59",
"content": "@TiangoThink about WPA/WPA2 Passwords.You can listen to the data sent over the WLAN for a few hours.Then take this Dump to your CUDA application and let it crack the password within a very short time.Then go back to the WLAN hotspot and type in the password and you have full acces with only 1 TRY !!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186719",
"author": "RogueAngel2k.com",
"timestamp": "2010-09-27T21:43:58",
"content": "Just scary.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186726",
"author": "biozz",
"timestamp": "2010-09-27T21:55:42",
"content": "i have dual nvidia GTX 480s in sli in my desktop and it makes rendering and film processing a breeze so password cracking would be simple no?i mean brute force attacking and hash cracking is nothing more than a bunch of small not so complex tasks and with over 900 cores per GPU than it should speed things up right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186730",
"author": "goldscott",
"timestamp": "2010-09-27T22:01:18",
"content": "WPA cracking is a poor example. You still have to “listen to the data sent over the WLAN for a few hours,” so cracking gramma’s wifi password isn’t the bottleneck, the acquisition of data remains the hurdle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186740",
"author": "UC",
"timestamp": "2010-09-27T22:09:34",
"content": "Are there any opensource cuda/stream crackers out there? They’d be fun to play around with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186744",
"author": "NatureTM",
"timestamp": "2010-09-27T22:15:50",
"content": "As long as people pick good passwords that aren’t going to be on a wordlist, things are pretty secure. A plain old bruteforce attack will still take a very long time.I sometimes think about the fact that, given enough time, all these encryptions will be a computational breeze to bruteforce. I could just sniff your encrypted data, wait 10 – 15 years, and get your secret then. It usually doesn’t matter, since your secret probably won’t be very important after 10 years. I do, however, imagine it should matter to governments and people who like to send files called, “encrypted_pics_of_my_gf.rar”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186757",
"author": "lolzertank",
"timestamp": "2010-09-27T22:55:44",
"content": "It’s not that hard to outpace technology with passwords.Using a very simplistic (and generally incorrect, but whatever) assumption with Moore’s Law, we expect computing power to double every 18 months.On the other hand, if we add ONE random letter/special character/number, the time to brute force your password is multiplied by about 40.The same applies for hashing and encryption algorithms. Adding more bits is relatively easy, but it makes cracking a whole lot harder.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186761",
"author": "hello",
"timestamp": "2010-09-27T23:01:57",
"content": "http://www.golubev.com/hashgpu.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186763",
"author": "Alexander Rossie",
"timestamp": "2010-09-27T23:03:23",
"content": "Using GPU’s to crack passwords is old news.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186764",
"author": "psizzz",
"timestamp": "2010-09-27T23:06:09",
"content": "@NatureTM@biozzPeople who use encryption for government-type secrets or even just people who know what they are talking about (though I do not claim to be one of them) design cryptography algorithms (hashes, symmetric and asymmetric cryptography, etc.) so that not only the computational power for current computers is far to weak, but they also look into what could be possible in the future.Given a pure brute force attack and no further breakthrough in CS/mathematics (no attacks in the algorithm allowing to select a subset of possible plaintexts without actually testing them for example), there is such a thing as a “big enough key” for a given algorithm, so that the computational power of silicon CPU will NEVER reach a point at which it can brute force it in reasonable time, no matter how big and fast you make it.This kind of calculation is generally not done vs. the latest i7, GTXblabla, …, but more in terms of total energy and time needed compared to “big values”, in the order of the age of the universe. So, like I said, without breakthroughs and research, you can’t just throw computational power at brute force and hope it will solve itself…For those who are interested, I’d recommend a book like Bruce Schneier’s Applied Cryptography, which has everything from the basic concepts to the theory and implementation, though I’m sure the same information can be found on the net somewhere.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186775",
"author": "biozz",
"timestamp": "2010-09-27T23:40:02",
"content": "@Alexander Rossiehow is this “old news”? its only been 2 years seance it became popular and only recently became a concerntell me whats the new and better way to crack passwords .. im all ears",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186786",
"author": "Mikey",
"timestamp": "2010-09-28T00:06:21",
"content": "@lolzertank yeah, it is easy for encryption to out pace technology, BUT as someone else already pointed out, that only works with current encryption technology — if I sniff your data now, and crack it in 10 or 20 years on my cell phone, I still have it cracked — though — as was also already said, it’s probably not going to be worth anything in that time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186792",
"author": "Spork",
"timestamp": "2010-09-28T00:16:05",
"content": "As NatureTM and lolzertank pointed out, hashed passwords are still pretty secure because at a length of say 20 it will take quite a long while to crack a password.Even with time/memory tradeoff of rainbow tables you’ll need several terabytes of storage and many many GPU’s to generate 20 character passwords in a reasonable length of time.@biozzTwo years is old news. If I told you that I just started my job.. two years ago. You would wonder why I am telling you this now, because it is old.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186953",
"author": "Leithoa",
"timestamp": "2010-09-28T04:09:47",
"content": "The ability and relative ease of using GPUs for encryption breaking has been known and used far longer than two years ago.It’s the reason why the US gov’t get’s all flustered when a connex container full of playstatons and video ipods are shipped to certain countries that don’t like us.The developement was on the software side of things with the release to the public of SDKs that lower the implementaion hurdle considerably.I hope people start releasing programs that take advantage of the power of GPUs. Even those not aimed at encryption breaking would benefit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187026",
"author": "biozz",
"timestamp": "2010-09-28T05:29:38",
"content": "@Sporkthats a poor analogy if you told me 2 years ago than told me again its old newsif your telling me for the first time than its just news that’s a one time event this is an ongoing eventthere not telling us that it is possible its telling us that people are doing it NOW and it poses a security threat NOW and the article is only a few weeks old",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187088",
"author": "Aschenox",
"timestamp": "2010-09-28T06:13:56",
"content": "There is a hidden point that’s being missed here.It’s true, superfluous characters added to a password can make it quite more difficult to brute force, and an arbitrarily long password can possibly make a brute force attempt futile, BUT —if an arbitrarily long password is changed at an arbitrarily small interval, any brute force attempt, no matter how fast (up to a certain, currently unachievable point) will be rendered useless, even if it provides the correct secret.In practical application, if you have a system that generates a 256-bit password at random, at least 1024 times per second, and requires a perfectly synchronized password to gain access to an otherwise implausibly secure computer system, any brute force attack would be mostly useless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187134",
"author": "Erik Johansson",
"timestamp": "2010-09-28T07:31:30",
"content": "Some cryptos slow on GPUs e.g. Blue Midnight Wishhttp://upcommons.upc.edu/pfc/bitstream/2099.1/7933/1/Masteoppgave.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187137",
"author": "Ryan",
"timestamp": "2010-09-28T07:39:36",
"content": "Hak#5 done an interesting article on GPU password cracking. Might be of use for those wanting to know more.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187138",
"author": "smoker_dave",
"timestamp": "2010-09-28T07:39:48",
"content": "If you’re thinking about cracking WIFI passwords, hotmail accounts or even paypal accounts – you’re thinking small time.Check out this forum thread (particularly post 43)http://forum.gsmhosting.com/vbb/f83/how-sl3-unlock-codes-calculated-1079689/index3.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187158",
"author": "anon",
"timestamp": "2010-09-28T08:51:30",
"content": "@goldscottYou’re way off. All you need is that 4way handshake. Deauth a client and capture = few minutes at the most.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187162",
"author": "Merlin051",
"timestamp": "2010-09-28T09:12:29",
"content": "@payneYou dont need to listen to a Wlan for a few hours in order to be able to crack it, you only need to capture a 4way handshake which can be forced with various ddos or deauth methods.Once you have the handshake there are various methods used (tables/cowpatty/etc..) which can be used to crack it.longer and more complex passwords will help fight it off for a while, but eventually its not going to be enough.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187182",
"author": "Tachikoma",
"timestamp": "2010-09-28T10:45:10",
"content": "@haltuxMy understanding is that brute force password cracking operations is highly scalable. A naive approach is working on the same cyphertext in parallel with different key ranges across several compute domains.And why do you think matrix operations can not be parallelised? They can be split up into several compute domains in various ways. There is several decades worth of research in this area.Things have never been so sweet now that OpenCL and CUDA is becoming more popular.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187189",
"author": "steve",
"timestamp": "2010-09-28T11:10:42",
"content": "I test-drove a CUDA based RAR password cracker on my system. My single GTX280 achieved over 3000 calculations per second, compared to just 30 calculations per second for a 3.2GHz P4",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187201",
"author": "cknopp",
"timestamp": "2010-09-28T11:45:36",
"content": "http://www.distributed.net/Download_prereleaseI used to run the stream client on dual 4870×2’s, and would crunch about 2billion keys/sec… And that was with 3200 stream cores.It isn’t difficult to put 12800 cores in a box now, so 8billion keys/sec isnt too bad!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187205",
"author": "al1ce",
"timestamp": "2010-09-28T12:04:27",
"content": "further malicious activities on GPUs:http://it.slashdot.org/story/10/09/27/1422205/Malware-Running-On-Graphics-Cards?from=rss",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187233",
"author": "Faelenor",
"timestamp": "2010-09-28T13:14:49",
"content": "I think one of the biggest flaw of lots of password protected systems are the “security questions”. It’s usually so easy to guess or find the answers that it’s like having no protection at all!I always write dummy answers to those questions…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187255",
"author": "uC",
"timestamp": "2010-09-28T14:13:18",
"content": "@hello @cknopp thanks for the links.@smoker_dave excellent picture. Who’d of known that clusters aren’t just for researchers any more. I always wondered how they did code unlocking. Looks like a great HAD article in there somewhere.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187283",
"author": "NishaKitty",
"timestamp": "2010-09-28T16:04:15",
"content": "This is only an issue for encryted data, it is nothing against passwords for simple reasons.1. Lock out, sorry you wanna try 50 passwords to login? Sorry buddy lock out 24 hours. Good luck brute forcing that.2. Don’t allow access to the password database file in the first place, once again no brute forcing.There is no concern for passwords being brute forced online if all the two steps above are done. There is also no concern of said rainbow tables on windows passwords if the said password data base file can’t be accessed. This stuff is a no brainer. Passwords will always be safe with these systems.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187303",
"author": "Matthew Sparks",
"timestamp": "2010-09-28T16:50:24",
"content": "SEATEC ASTRONOMY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187308",
"author": "deathshadow",
"timestamp": "2010-09-28T16:59:01",
"content": "Not that ANYONE gives a flying **** about AMD/ATI “Streams” — talk about stillborn.What I’m surprised to not see mentioned is OpenCL, since that’s cross platform.Though NishaKitty hit it on the head — most sites/apps where security matters locks you out for 24 hours after THREE tries!… and if you are sending ANYTHING that gives access to the passwords database you’re a retard!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187320",
"author": "cknopp",
"timestamp": "2010-09-28T17:48:24",
"content": "@deathshadowATI Stream is not still born… Actually, OpenCL is now a part of it!And what I want to see is someone harness these GPU’s to crack the unbreakable Nagra3!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187329",
"author": "Rob",
"timestamp": "2010-09-28T18:11:30",
"content": "@deathshadow“… and if you are sending ANYTHING that gives access to the passwords database you’re a retard!”Yeah, if you have a single vulnerability in your website, you’re retarded! How could you not notice that one of the many apps your company runs or hosts has a vulnerability in it?I work for an asset management company interning for web application security, and we have A LOT of applications. It only takes one of them to have a vulnerability to allow people to start mining database information, possibly including hashed passwords. At that point, they don’t really them, but they can get a user’s name, email, all other kinds of information. With that, and if they assume the user uses the same or a similar password for their accounts, they can start really damaging individuals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187340",
"author": "NishaKitty",
"timestamp": "2010-09-28T18:45:17",
"content": "@RobThat’s an already lost situation anyway reguardless of password databases. Layering the services on your server can help with this etc sure this is quite obvious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187383",
"author": "Brad Hein",
"timestamp": "2010-09-28T19:43:47",
"content": "I only read the short comments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187433",
"author": "Shield",
"timestamp": "2010-09-28T21:39:57",
"content": "@goldscottYou can get a WPA/WPA2 hash in about 5 min or less. Use airepley to deauth the client, when they reconnect you get the hash. It takes maybe a minute.The people who really should be shaking in their boots are the people that use the default passwords on ATT’s 2WIRE modems as they have a 10 digit password. Without GPU cracking it would take forever to crack, with GPU cracking (pyrit) crunch to generate the numbers (so you dont need a huge password file) you can be done in a couple days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187472",
"author": "sexiewasd",
"timestamp": "2010-09-28T23:06:40",
"content": "In any decently written web application, even with a full copy of the database brute forcing just is not an option without also having file access, which usually means physical access, and at that point all is lost anyways. I’ve been writing a CMS for personal use, with my salting and hashing routine each password has around 100 trillion permutations per password before you even get to try breaking the hash, and thats if you’ve happened to grab the salt lists without them it’s around (turns out I can’t tell you, my online permutation calculator responds with “INFINITY”) I doubt that without physical access the password “cat” could be brute forced, add to that that each site has there own different method of salting, and getting a job at the web host seams like the easy way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187499",
"author": "Justin",
"timestamp": "2010-09-29T00:56:47",
"content": "Someone should use the methods above to decypher the Zodiac Killer cyphers that are still undecrypted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187676",
"author": "chris",
"timestamp": "2010-09-29T11:44:03",
"content": "well, on a more positive side of this, we’ll probably be seeing some games that take advantage of extra GPUs pretty soon. even if not, just pop in another GPU, write a driver that registers it to windows/linux/mac as an extra CPU, then there you go, high speed games!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187719",
"author": "ray",
"timestamp": "2010-09-29T15:31:23",
"content": "can any one post cuda suppored gui password cracker?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187746",
"author": "Terry Likeman",
"timestamp": "2010-09-29T16:36:14",
"content": "I think we are all overlooking the implications this has in regard to cyberwarfare. According to my calculations, the Quadro 6000, nVidia’s top of the line simulation and hardcore 3D rendering solution, has an effective speed approaching 500GHz.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188262",
"author": "dundundunnnn",
"timestamp": "2010-09-30T18:15:14",
"content": "so… what about rainbow tables? and table generation?what if you could get the cpu + gpu(s) to work together? i.e. cpu working on part 1 of 2 and gpu working on part 2 of 2 etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "189621",
"author": "Don",
"timestamp": "2010-10-03T04:07:43",
"content": "Considering elcomsoft was doing this back in 2007 and continue to apply it to new GPUs and encryption processes it is old news. They wrote a paper to increase awareness of this “vulnerability” for people who have had their head buried in the sand for the past 3 years. If waving your hands and shouting about something that happens is the best you can do as a research scientist we are screwed, but I already had the figured when the picture showed three white guys instead of an asian.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192817",
"author": "Joe",
"timestamp": "2010-10-07T10:40:19",
"content": "Now if some hacker group would apply this to a certain satellite tv network it would make my day. I have no interest in using something like this to run malware on a random strangers computer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "379888",
"author": "Vijay",
"timestamp": "2011-04-14T05:26:36",
"content": "Now you have ighashGPU, aGPU hash cracker. My Radeon 5770 does 3.3 Billion passwords per second.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "791073",
"author": "pepin",
"timestamp": "2012-09-20T16:17:53",
"content": "wowww nokia SLI ati amd 790 core!!!!! is very fasstt",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.17989
|
||
https://hackaday.com/2010/09/27/wireless-electrocardiography-with-iphone/
|
Wireless Electrocardiography… With IPhone
|
Mike Szczys
|
[
"Medical Hacks"
] |
[
"bluetooth",
"ecg",
"electrocardiogram",
"iphone",
"msp430",
"wbsn",
"wireless"
] |
This module is
a sensor package for monitoring the electrical activity of the heart
. It is the product of an effort to create a Wireless Body Sensor Network node that is
dependable while consuming very little electricity
, which means a longer battery life. To accomplish this, the microcontroller in charge of the node compresses the data (not usually done with wireless ECG hardware) so that the radio transmissions are as short and infrequent as possible.
[Igor] sent us this tip and had
a short question and answer session with one of the developers
. It seems they are working with the MSP430 chips right now because of their low power consumption. Unfortunately those chips still draw a high load when transmitting so future revisions will utilize an alternative.
Oh, and why the iPhone? The device that displays the data makes little difference. In this case they’re transmitting via Bluetooth for a real-time display (seen in the video after the break). This could be used for a wide variety of devices, or monitored remotely via the Internet.
[youtube=http://www.youtube.com/watch?v=iURXzBsckOc]
| 32
| 32
|
[
{
"comment_id": "186681",
"author": "rasz",
"timestamp": "2010-09-27T20:07:51",
"content": "video has no sound, reading the page I almost puked in my mouth (lots or MBA moronsspeak like shifting paradigms, im guessing they try to sell it to some corporation). iphone to be trendy …Sure it needs a lot of juice when you use separate bluetooth chip instead of 802.15.4in fact HERE is exactly this, MSP430 + zigbeehttp://www.youtube.com/watch?v=SEeUu53OHGArunning off two AAAs and without stupid iphone",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186692",
"author": "Ptrek",
"timestamp": "2010-09-27T20:28:38",
"content": "Oh yeah and you need a full laptop to do the same as the “stupid iphone”. And that stuff does not look wearable. Also the MBA morronspeak you didn’t seem to understand explains they’re actually evaluating compression algorithms: that compressive sensing stuff was recently featured in wired and looks quite cool to me. If you throw in a more efficient communication layer, you can only improve on the system after compression. And compression remains key …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186694",
"author": "bilbao bob",
"timestamp": "2010-09-27T20:37:09",
"content": "ESL is ENS as MIT is to Stanford. Once upon a time they did useful science, but now they rehash existing technology and tout it as the second coming. Remember how MIT went from being the font of all things scientific to becoming a PR machine designed to suck blood from alumni? Same thing.MIT: Hey – we reinvented inductance chargers!Stanford: All we did was spin out google.MIT: Look – the media lab made yet another stab at becoming a video arcade. Pew! Pew! Pew!Stanford: Wait – they’re getting all the press! Quick, let’s take the (circa 1860) absorption refrigerator and pretend we invented it to, uh, help, uh, help the starving kids in africa gain access to ice cream. Then we can ask for grants from ADM for expanding the market for HFC.MIT: Silly rabbits, The USPTO says that we invented that last week. See you in court!In general, this is the future: After generating all possible permutations of [X is not unique but X with a computer is and should be patented], the VC crowd is about to do the same thing with cell phones.Next up: doing X with a gene splice, as in pushing aspirin made by bio-culture! Same great effect, but now with extra profit margin!Inventors – it is not how great your idea is, but how effectively someone else can market it that counts. It is not genius, but the ability to exploit ideas that makes us great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186695",
"author": "Igor Carron",
"timestamp": "2010-09-27T20:42:16",
"content": "My tip was explicit about the fact that what is undertaken here is an instance of compressed sensing. To make it short, the reason the draw on power is expected to be low is because the encoding of the signal is done following the theory of compressed sensing. The reason the iPhone is important is because the signal being compressed during the low power acquisition (because of compressed sensing) is then decoded on the iPhone which performs some real computations involving full scale optimization routines with wavelets. The iPhone is central to this set-up because it is used as a full scale computer, not just a screen.Compressed Sensing is a paradigm shift because the encoding is very low power and most of the work is really performed after the signal has been acquired not during acquisition.Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186713",
"author": "rasz",
"timestamp": "2010-09-27T21:35:19",
"content": "I still say its bogus.>The reason the iPhone is important is because the>signal being compressed during the low power>acquisition (because of compressed sensingSo you are compressing EEG signals sampled at ~400Hz? Even at 24 channels you are still sending only 9.6 KB/s.Then there is this “shimmerTM” that again sounds like a sales pitch. And this coming out of UNI research, but all I can see published are those fluff abstracts plus some slides and no real information about implementation (HOW, not what).>A normal system requires the encoding of the>signal (a power hungry process) to be performed>during acquisition before sending the signal outSampling is a power hungry process? From what I understand conventional systems just send raw data because its such a small quantity of information (<10KB/s for 24 channels) that no encoding is required.There must be something that im missing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186731",
"author": "M4CGYV3R",
"timestamp": "2010-09-27T22:01:26",
"content": "I think the iPhone version looks a little hokey and contrived. Is there any legitimate reason to need an EKG (not EEG – no brainwaves here) on your phone?If you’re a doctor surely you’ll lose your license for basing medical care on untested BS equipment like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186735",
"author": "Igor Carron",
"timestamp": "2010-09-27T22:04:16",
"content": "Rasz,I am sure you still have an open mind as you keep on asking questions. The idea is to use less power than just sending raw data. In order to do that you need to compress first before sending out the data wirelessly. Now if you do compression the conventional way, you are likely to require more power than sending the raw data.With compressed sensing, the encoding is very very cheap in terms of power (because it is fixed i.e. non iterative) compared to conventional compression. The main drawback is to reconstruct the signal once it has been sent off the air. The reconstruction is very power hungry hence the need for a computer like the iPhone.To give you some numbers, you need to check slide 32 of this presentation:http://lts2www.epfl.ch/~vandergh/Download/Marseille-2010.pdfwhere there is a comparison between conventional encoding, CS encoding (our case) and no encoding at all. In the CS case, the beacon interval is about 2.2 times larger than no encoding. The DWT scheme is much better than CS but then again, the code execution time is 10 times that of the CS. As pointed out in the slide, the values for the power level need to be looked at carefully as the use of another microcontroller is likely to change those numbers.Hope this helps,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186737",
"author": "Igor Carron",
"timestamp": "2010-09-27T22:07:03",
"content": "M4CGYV3R,The iPhone is really needed here for its computing power. The fact that it also has a nice ergonomic factor helps in making the point that the system is already miniaturized using off-the-shelf hardware.Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186747",
"author": "goldscott",
"timestamp": "2010-09-27T22:19:17",
"content": "I’m going to get aboard rasz’s thought-train.“It seems they are working with the MSP430 chips right now because of their low power consumption. Unfortunately those chips still draw a high load when transmitting so future revisions will utilize an alternative.”Mike, I doubt it’s the MSP430 that’s drawing more power when transmitting. It’s the bluetooth transmitter. And to the project’s implementers: why use power-hungry and network-poor bluetooth?It would be a lot easier/faster/efficient to use the PHY and MAC layers presented by 802.15.4.Also, I didn’t get too deep into the what compression algorithm was (is it discussed/posted?), but with the limited RAM available in the MSP430 family, I doubt it’s a very complex compression scheme.So far, it seems that instead of just keeping it relatively simple and streaming buffers of samples, this project is compressing those buffers and bursting them in shorter, less frequent packets to save power. This is great for some relatively low frequency sensors like ECGs, temperature, etc.How about some metrics on how much power and bandwidth actually save?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186748",
"author": "Igor Carron",
"timestamp": "2010-09-27T22:30:57",
"content": "Goldscott,You are right, the compression scheme is very simple yet efficient. For some numbers check slide 32 of the presentation I mentioned to rasz above (http://lts2www.epfl.ch/~vandergh/Download/Marseille-2010.pdf).As for the bluetooth use as opposed to other means, I wouldn’t know. I am sure they wanted to use an off-the-shelf (full scale) computer such as the iPhone in order to show the reduced complexity of the overall prototype. But as I said, I don’t know about that part.Hope this helps,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186753",
"author": "goldscott",
"timestamp": "2010-09-27T22:39:37",
"content": "Thanks Igor,I just looked at the slide show. I’m not familiar with much of the numerical analysis (e.g. Gabor, Rudin, Osher, Fatemi, etc.), but I took a short graduate course on compression, so I see a small dictionary is being used with DWTs. I also don’t have any experience with sparse matrices, but it seems like the “sparseness” is being highly compressed and the “meaningful” data is getting a DWT run over it?Also, what is the icyFlex2 and why haven’t I heard of this chip? Proprietary development at CSEM?…Sometimes I miss academics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186756",
"author": "Igor Carron",
"timestamp": "2010-09-27T22:52:34",
"content": "Goldscott,You said:“I just looked at the slide show. I’m not familiar with much of the numerical analysis (e.g. Gabor, Rudin, Osher, Fatemi, etc.), but I took a short graduate course on compression, so I see a small dictionary is being used with DWTs. I also don’t have any experience with sparse matrices, but it seems like the “sparseness” is being highly compressed and the “meaningful” data is getting a DWT run over it?”Not quite but close. In the generic encoding scheme one would perform an encoding at the sensor level with the DWT dictionary. In the CS case, the acquisition is performed with a “sparse” dictionary that unlike the conventional version does not require iterations (no need for finding the best element in the dictionary as in the conventional case). However, in the CS case, the DWT dictionary is used on the receiver side with the iPhone, as it is used to combine the encoded data and the dictionary to provide the original signal.In the conventional case, the compression effort is spent on the sensor side while in the CS case, the effort is spent on the receiver side.“Also, what is the icyFlex2 and why haven’t I heard of this chip? Proprietary development at CSEM?”I really don’t know about that part, sorry.Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186762",
"author": "rasz",
"timestamp": "2010-09-27T23:02:21",
"content": "Iv seen those slides before my first post. They state CS achieves 50% compression. Combined with Bluetooth whole system accomplishes exactly same power consumption of comparable system sending raw data with Zigbee (CC2420 RX:41.4mW TX:36.6mW, idle:1.28mW, bluetooth at least twice that looking at the slide).Basically using Bluetooth for talking to iphone zeroes any advantages CS might have.Last but not least I dont think compressing EEG/EKG signals would be advisable when raw data is almost free. I can understand using CS in MRI where it offers faster acquisition times.So in summary it looks like a solution not only looking for a problem, but creating one (using BT for radio link to artificially inflate power consumption).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186768",
"author": "Igor Carron",
"timestamp": "2010-09-27T23:26:10",
"content": "rasz,You said“..Basically using Bluetooth for talking to iphone zeroes any advantages CS might have.”Yes they are at that stage it seems but as I have said, the iPhone as a computer is a terribly important part of the whole set-up.You also said:“..Last but not least I dont think compressing EEG/EKG signals would be advisable when raw data is almost free. I can understand using CS in MRI where it offers faster acquisition times..”You are making several assumptions here:one is that this is the best CS can do. My hunch is that they can do better. They are also interested in changing the A/D converter at the sensor level, with what we have seen in CS,I am thinking we are going to see improvement there as well. Finally, you are making the assumption that one cannot make some observation about an EKG from its compressed data. Unlike conventional systems, CS has the particularity of providing a sound theoretical background that says otherwise. In short, while it is nice to see an EKG traces being reconstructed on the iPhone, one will eventually be capable of making an actual diagnostic from the compressed data before they are being reconstructed. All in all, I agree with the PI of the project that this prototype is likely to provide much better outcome in the future.In the case of MRI and CS, the hardware was already there, so not much convincing had to be made at the hardware level: the procedure for acquiring data just changed. In most other cases including compressed sensing, we have to change the hardware. This is why CS always look like a small improvement at first sight (or a solution looking for a problem) because you are generally using off the shelf hardware that was not designed for the new purpose at hand (BT in this case). If you are interested, I have ompiled a list of CS hardware being built:https://sites.google.com/site/igorcarron2/compressedsensinghardwareHope this helped,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187210",
"author": "Mike",
"timestamp": "2010-09-28T12:36:59",
"content": "This is awesome, but iphones are still gay.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187302",
"author": "andrew",
"timestamp": "2010-09-28T16:49:25",
"content": "I would think that EEG waveforms would be trivial to compress, and bt sniff mode would give you very low power consumption (wake up every few seconds to burst the data).Where are the schematics/notes on the EEG hardware itself? Is there anything interesting or unique about the actual data acquisition?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187304",
"author": "rasz",
"timestamp": "2010-09-28T16:51:30",
"content": "icyflexhttp://docs.google.com/viewer?a=v&q=cache:ft-XczA8W3AJ:www.csem.ch/docs/Show.aspx%3Fid%3D9221+icyFlex2&hl=en&pid=bl&srcid=ADGEESjhqm1OCI5bgUObzPjKARQqZd5nPjtDxqTiG6Nao8hY-7OKKiaMUUfBWEYehxXPYRrXx0ERmFsljCNwPpHBVUatxk3Ag9Po9SkyawwJ8iSIRLRc5XyCF3QjIlk_ueLKY76YFkm1&sig=AHIEtbTEzlp4sEgzmEQn5QSi7tvVfnhanwNow that is something I would love to read more about.I dont like the idea of using lossy methods for medical data (EEG/EKG) when raw is almost free. As I stated above MRI is different because you are actually gaining temporal/spatial resolution with CS as the whole process is often undersampled to begin with. There is nothing to gain when dealing with 200Hz signals.Basically this paper invented the problem – expensive radio – and then tried to work around it with CS, that didnt work (msp430 results) so they jumped to another platform (icyflex) and somehow pulled 92% number out of their asses when in fact the number is ~25% (icyflex paired with bluetooth, lossy DWT vs lossy CS). I could venture a guess that better optimized lossless compression could match CS on the same platform, after all they concentrated on optimizing only CS.I understand CS can go <1/8 of Nyquist–Shannon, but why bother when-Nyquist is easily reachable-Nyquist is free-lossless is desirableI can think only of one or two reasons, fat research grand or patent paid by some corporation :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187324",
"author": "Igor Carron",
"timestamp": "2010-09-28T17:56:38",
"content": "Rasz,You are missing the point.There is really nothing to optimize for CS. In fact, optimizing for the DWT scheme is far more expensive than the simple multiplexing occurring for CS. This is so because you have to spend much time and money trying to figure out how to design your sensor to perform the compression in the right kind of basis. In CS, you don’t care about these bases issues until you reconstruct the signal (i.e. much later)There is also no rule for CS being 1/8 Nyquist, in fact, the CS rate is really dependent on how sparse the signal is. The sparser the signal the lower the rate. In fact, the specific case shown here is valid for one ECG electrode. The CS rate decreases when we add several electrodes as most of the other electrodes share some part of the signal together (joint sparsity). The overall effect of adding additional electrodes becomes more obvious with the utilization of CS.Finally, you also make the point that Nyquist is free. Maybe so but if you have to devise an AI system on top of this sensor in order to produce some type of alert (as you know some people should have an ECG all day long for some diseases), then you are going to devise an algorithm that classifies this signal. And clearly you want that signal to be as small as possible so that any SVM/Classification algo can be fully tested. The Nyquist rate might buy you the ability to reconstruct perfectly the signal (without any notion of sparsity) but it will be a hindrance for classification purposes (especially with several electrodes) and will need to be done off-line (away from the sensor). On the other hand, CS buys you the ability to, for little additional power, perform classification on-the-fly, next to the sensor.I hope this helped,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187332",
"author": "andrew",
"timestamp": "2010-09-28T18:17:38",
"content": "I’m concerned about the lossy compression; If you are monitoring for abnormal EEG/EKG would the shape of the waveform not be important? what is the accuracy in reconstruction?Also this smacks of pseudoscience; what are the real-world measured currents (sensor/transmitter side only) for doing this vs doing a basic (RLE/dictionary/etc) compression of the data? Nobody cares about bytes transfered, as tiny packets will have more overhead (i.e. lower data/mW) due to radio/protocol overhead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187343",
"author": "Igor Carron",
"timestamp": "2010-09-28T19:03:45",
"content": "Andrew,Check the accuracy in the slides I pointed to earlier in this thread.Pseudoscience ? wow.Anyway as I said earlier, part of the idea is to eventually have a classification system as close as possible to the sensor. Another is to have many more electrodes than just one. A Nyquist rate signal could not possibly allow for classification without a bulky and power hungry overhead and would eventually be an issue for a larger set of electrodes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187347",
"author": "andrew",
"timestamp": "2010-09-28T19:25:13",
"content": "Pseudoscience is perhaps a strong term; there was a lot of academic fluff on “fractal compression” years back that made a lot of claims similar to your own, and that is perhaps why my bs detector was going off.I looked at the slides; lots of math and theoretical data but next to no actual empirical data aside from that one tiny chart in the one slide.I didn’t see anything about comparison with simple lossless delta compression nor anything about buffering more data; What was the limiting factor in determining the beacon size? I think that your slides aim at academia and that is fine, but some nice big waveforms and data would have gone a lot farther to dismissing the skepticism you’re seeing here.Again, I apologize for the pseudoscience jab. Do you have your raw data, DCT and CS data and current measurements available somewhere for the rest of us to be able to poke at? What about the questions I’d asked about accurate reproduction of the original waveform given the lossy compression?It is very difficult (for me) to understand the benefit of CS, especially given that simple delta compression for a trivial waveform such as ECG should do fairly well with no error.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187389",
"author": "bilbao bob",
"timestamp": "2010-09-28T19:57:36",
"content": ">Compressed Sensing is a paradigm shift because>the encoding is very low power and most of the >work is really performed after the signal has been >acquired not during acquisition.As a paradigm shifts go, this one needs a cane and a hearing aid. Unless you think that compression after data acquisition and post-processing on the other side of the link after decompression is “new”.The exact same paradigm shift occurred when someone discovered that you could use motors to play tapes of very long and complex telegraph messages in high-speed bursts, for decoding on the other side using the reverse process. Of course, that was circa a few years before WW1, so you’d hardly be expected to have seen your paradigm back when it had a full head of hair and could still get more women than Maurice Chevalier.And, you probably missed it again when that Turing fellow was trying to bust a move before the big apple, when we used computers to decode radio transmissions. Or when we needed to decode pressure wave data while we practiced giving cancer to half of Nevada.Like a bad movie vampire, your paradigm hung out with Von Braun and those silly rabbits at Lockheed, before graduating to doing secret squirrel spy stuff with bubbly torpedoes and bouncing recon images off satellites.But like shag carpet, your paradigm will be back on the scene faster than lady gaga can peel her upper lip clear of hair, and so I would like to congratulate you on your clever iphone hack.But in the meantime, go buy an ipad so you can find an appropriate audience for your hype. They’ll appreciate it. They dig anything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187395",
"author": "bilbao bob",
"timestamp": "2010-09-28T20:06:35",
"content": "You know what’s sad? Dissing a guy who is actually doing research on something near and dear to my heart.Igor, please, I beg you to skip this bac quality research demo and go work on subcutaneous isolated differential eeg probes that use fiber optic thread to get a usable signal back to the analyzer.EKG via bluetooth? Man, you’re WAY better than that. EKG has been done to death, as has remote EKG using every flavor of sensor/radio/data/compression AND visualization scheme known to man. Go find the BRAIN, man, and get back to us with the results.– Abe N.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187414",
"author": "Igor Carron",
"timestamp": "2010-09-28T20:44:56",
"content": "Andrew,It’s good to have BS detectors up.I think the reason you don’t see traces and reconstruction is really that the slide were focused for a different audience. But in CS, the error is well controlled based on the information one has on the sparsity of the signal. I am sure that in the future, the authors will also show real and reconstructed waveforms (I am sure they will read this thread at some point in the future) On slide 30 of these slides:http://lts2www.epfl.ch/~vandergh/Download/Marseille-2010.pdfThe good and very good limits are judgements made on how the data compares to the uncoded one. The DWT scheme (conventional compression scheme using wavelets) is the best one available, while the CS scheme is worse, but the time needed to run the encoding required for the DWT is 5 times more than for CS. The expectations would be for the encoding power level to also be in that ratio but the total power number given is only slightly giving an advantage to CS (must be the radio).The point of the presentation is to show preliminary result and the need to know what you are doing when implementing this CS technique. Unlike “Fractal Compression” :-), CS is a different way to perform sampling. It is known that it is not the cure-all solution but rather a different way of doing things. The community at large is still trying to figure out situations where it brings an enormous advantage over current undertakings. MRI is clearly a good example where no hardware change was required that benefited from it, other areas are taking a little longer as hardware needs to be changed (the project shown here is a good example)So I think the advantage is really that if you choose a simpler encoding hardware as well as a better radio you could really see CS shining through over both no encoding and the lossy DWT approach. The approach will eventually scale very well with multiple sensors as CS will provide additional theoretical arguments for higher compression. Eventually, the thought is that several sensors and a lightweight classification system are the targets to aim for. Again this is a work in progress.As an outsider to the project, the most surprising to me was the fact that the iPhone could reconstruct the signal in real time. See, up until three/four years ago, this is a feat that just could not be achieved, see for instance the second figure in this blog entry I wrote a while back on the performance of reconstruction algorithms:http://nuit-blanche.blogspot.com/2009/12/cs-are-we-hitting-ceiling.htmlThe convergence of tremendous algorithm improvement in the past few years and the rise of small handheld computers like the iPhone makes this ECG system a very unique projectI hope I answered some of your questions, for more, you guys can ask directly the folks working on that project (icyflex,…). As a work in progress, I am sure they will update us on their next iteration which will make the CS system a more obvious winner to different trade studies.Cheers,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187421",
"author": "Igor Carron",
"timestamp": "2010-09-28T20:58:49",
"content": "Bilbao bob,Nice rant. In CS, compression and data acquisition are performed SIMULTANEOUSLY.Cheers,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187424",
"author": "Igor Carron",
"timestamp": "2010-09-28T21:00:37",
"content": "Andrew,I have responded to you but the comment awaits moderation. Sorry.Abe N.I am not involved in the project.Cheers,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187436",
"author": "Kris Lee",
"timestamp": "2010-09-28T21:47:04",
"content": "This is very interesting project and interfacing it with some popular portable device for data manipulation and display is a good idea too (as side note, I hope that it will be not limited only with one platform in the future).One question however: how much more power does the receiving device need for decompression compared to regular data receiving?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187441",
"author": "Igor Carron",
"timestamp": "2010-09-28T21:58:40",
"content": "Kris,I am not sure how to answer that question but in the DWT case, teh reconstruction involves one matrix vector multiplication, whereas in the CS case you have at least an order of magnitude more matrix vector multiplications.Hope this helps,igor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187444",
"author": "rasz",
"timestamp": "2010-09-28T22:06:44",
"content": "That is what Igor was so impressed about Kris, looks like iphone handling decoding is a big improvement.Personally im still not sold and think its just a gimmick to get grand money. Radio or visual domain on the other hand, now there CS could(will?) shine. I was blown away by one pixel camera.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187730",
"author": "rishatsoft",
"timestamp": "2010-09-29T15:50:04",
"content": "Wier cool!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188102",
"author": "Wim Ton",
"timestamp": "2010-09-30T11:15:49",
"content": "I missed in the discussion one of the trade offs in low power wireless systems:1.The more data you have to send, the more energy it costs.2.Compressing the data before sending costs energy as well.An elaborate algorithm may save on point 1 but cost more on point 2.Wim",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188131",
"author": "Igor Carron",
"timestamp": "2010-09-30T13:52:52",
"content": "Wim,The point is that power level for compression in CS is expected to be very low compared to conventional compression (DWT). So the idea is to compress using CS techniques (lower power than conventional systems) and then send as few as possible information over the wire (because the information is compressed i.e. as opposed to no compression).Where it gets interesting is that CS is not an optimal compression system compared to DWT. In effect, more data has to be sent over the wire with CS than with DWT. DWT on the other hand cost five times as much energy as CS for the compression step.At the hardware level, the compression step is very different for CS and DWT, one is not just a by-product of the other, the architecture has to be changed. Hence the trade studies…of which this project is part of.Hope this helped,Igor.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,368.849819
|
||
https://hackaday.com/2010/09/27/arduino-uno-and-mega-2560/
|
Arduino UNO And Mega 2560
|
Devlin Thyne
|
[
"Arduino Hacks",
"News"
] |
[
"arduino",
"ATMega8U2"
] |
The Arduino Team
presented some new products at Maker Faire this weekend. It’s a significant update. The
Arduino UNO
and
Arduino Mega 2560
update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip. Allowing an Arduino to become nearly any kind of USB device. A fourth mounting hole has been added to the UNO for more stable mounting. The booloader is now the
Optiboot
bootloader. The boards can run firmata out of the box. We are not sure about existing Arduino boards, but the last six bytes of EEPROM have a unique serial number. At this point, the Mega 2560 has some kind of issue with gcc on certain platforms and unable to use the full memory available until there is an update to the IDE.
The team also gave a preview of some works in progress. Arduino Ethernet POE can be power over ethernet and loaded with TFTP. Available October 18, TinkerKit will be released. Geared toward designers, the kit has PCB modules that include a joystick, soft pots, transistor, relay, power MOSFET, push button, LEDs and motor driver. That same day will be the launch of the multi-lingual Arduino Store.
These developments will be a nice addition to the toolset out there that you can use and we look forward to new projects using these tools.
Update:
[PT] sent us a link to
an ever-growing FAQ about this hardware
.
| 29
| 29
|
[
{
"comment_id": "186635",
"author": "Alton",
"timestamp": "2010-09-27T17:04:46",
"content": "‘The booloader is now the Optiboot bootloader’ Now is that just because Halloween is coming, or did I miss a change in terminology somewhere along the way?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186641",
"author": "chango",
"timestamp": "2010-09-27T17:15:21",
"content": "Where was this a few weeks ago when the PS3 hackers were buying all the PJRC Teensy stock?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186643",
"author": "fluidic",
"timestamp": "2010-09-27T17:38:30",
"content": "ARDUINO has evolved to become TEENSY.???Okay. Sounds good to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186645",
"author": "Zmaster",
"timestamp": "2010-09-27T17:48:16",
"content": "They replaced the FTDI bridge with a second avr with built-in usb controller… why?I do understand that replacing the main MCU would have made it incompatible with previous boards but this is basically the only significant change imho. Is it worth it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186648",
"author": "ErebusBat",
"timestamp": "2010-09-27T18:12:36",
"content": "@ZmasterThe new USB controller will allow it to masquerade as other USB devices and not just a serial device, so yes I would say it is worth it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186649",
"author": "gordon",
"timestamp": "2010-09-27T18:21:34",
"content": "Thank goodnes they kept the pinout pattern.I thought Id get that in before anyone else.I fancy getting one of the new mega’s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186652",
"author": "Luke",
"timestamp": "2010-09-27T18:27:37",
"content": "Zmaster, replacing the FTDI chip with the other Atmel chip allows the Arduino to act as different USB devices if programmed to do so (input, mass storage, etc.). The FTDI chip was only for talking serial to the Arduino. If you just want to prototype things on the Arduino and then use the ATmega328 by itself then it doesn’t make any difference. If you want to use the Arduino to create devices that interface with a computer in different ways then it can make a big difference not being limited to just serial communication.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186654",
"author": "Mudo",
"timestamp": "2010-09-27T18:33:04",
"content": "…I will go in this direction or directly mbed.http://overtone-labs.ning.com/…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186655",
"author": "Henrik Pedersen",
"timestamp": "2010-09-27T18:33:58",
"content": "The invasion is here….I don’t know really, gonna see the prices and the “easy to make yourself” before i’m impressed. POE is however nice ^^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186659",
"author": "Bill",
"timestamp": "2010-09-27T18:57:23",
"content": "More pictures and videos of the Arduino’s here:http://bit.ly/aPs9T6",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186680",
"author": "Proflt",
"timestamp": "2010-09-27T20:00:00",
"content": "I can’t wait for the HAD led blinking over the network airduino build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186703",
"author": "Whatnot",
"timestamp": "2010-09-27T21:08:40",
"content": "The new USB interface also is much faster and has much lower latency I’m told, that should help with many projects and make new ones possible, as does the masquerading, and it’s now driverless an usable for mac and linux without issue.It seems quite a nice push forwardsThe only drawback might be increased cost though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186707",
"author": "MH",
"timestamp": "2010-09-27T21:27:46",
"content": "@Alton‘The booloader is now the Optiboot bootloader’Maybe it is a booloader to prepare for all the anti-Arduino comments that typically appear here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186709",
"author": "Zmaster",
"timestamp": "2010-09-27T21:31:33",
"content": "@HerebusBat and LukeYeah, but why 2 MCUs instead of a new smaller board with just the ATMEGA8U2?Why compile 2 programs and make them talk to each other when you could only use a single program on the MCU with built-in usb.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186722",
"author": "draeath",
"timestamp": "2010-09-27T21:48:30",
"content": "… they still have the lame spacing between the pin headers I see. I guess that will never be fixed in the official design.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186736",
"author": "grenadier",
"timestamp": "2010-09-27T22:06:34",
"content": "Wow those are short sentences. Do they have to be so short? I don’t think they have to be so short. Short sentences aren’t good. They break up ideas. Don’t you think? Don’t you think?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186741",
"author": "anonymous coward",
"timestamp": "2010-09-27T22:13:33",
"content": "One unfortunate aspect of the new board is that thought the new usb chip, the ATmega8u is easily programmable through the unpopulated ICSP header (above the chip), no other lines on the chip are available for use. You can’t even greenwire them with much ease because the chip is in a QFN package. It wouldn’t have made the board any more expensive, but infinitely more hackable, to put some unpopulated headers corresponding to the unused gpios of the ATMega8u someplace on the board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186750",
"author": "synth",
"timestamp": "2010-09-27T22:32:34",
"content": "grenadier,derp?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186751",
"author": "Max",
"timestamp": "2010-09-27T22:35:46",
"content": "What a pity. I totally missed the atmegaXU2 series… Unfortunately they dont com in DIL packaging: I’d love to replace my favorite microcontroller (atmegaX8) with something that has real USB (not just software USB).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186755",
"author": "wiggles",
"timestamp": "2010-09-27T22:47:34",
"content": "The ATMega8u2’s are less expensive than the FTDI chips, not to mention more powerful and a smaller footprint. The ATmega8u2’s appear to also be programmable and since i heard you like Arduino’s (dawg); I put an AVR in your arduino so you can AVR while you AVR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186868",
"author": "Whatnot",
"timestamp": "2010-09-28T02:51:30",
"content": "@draeath what’s the problem with the spacing? And how mad would it be to change something so trivial and make all shields become useless, shields that sometimes can run in the hundred to purchase.@wiggles Really? They are cheaper? I’m surprised if that’s true, then it would make even more sense they went this route.@anonymous coward We’ll see what alternative versions make available, sparkfun and many others can choose a slightly different design.Plus I didn’t see the underside yet did you?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186902",
"author": "mike",
"timestamp": "2010-09-28T03:47:32",
"content": "@anonymous cowardthe ATmega8u also runs the USB DFU bootloader, so you can reflash it over USByou just short out a jumper on the board and use a special usb apphttp://arduino.cc/en/Main/ArduinoBoardUnounder the Programing section",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187232",
"author": "Whatnot",
"timestamp": "2010-09-28T13:13:17",
"content": "@mike from what I understand he knows you can program it but he thinks it’s a waste to not make the unused pins available too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187311",
"author": "deathshadow",
"timestamp": "2010-09-28T17:01:22",
"content": "About time the FDTI got kicked to the curb. Was the most limiting part of a stock Arduino — see why all my projects are built around the Teensy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187455",
"author": "Mike",
"timestamp": "2010-09-28T22:31:14",
"content": "They should have ditched the Mega328 and only used Mega8U2. Why the hell would you need 2 AVRs?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187501",
"author": "ewan",
"timestamp": "2010-09-29T01:02:07",
"content": "lets hope they put teensyduino and lufa support into the arduino idehttp://www.fourwalledcubicle.com/LUFA.phpnow that would be nice.not exactly a renderfarm but nice nonetheless.and i wonder exactly howm any minutes it will be untill we see the first arduino ps3 jailbreak?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188041",
"author": "mike",
"timestamp": "2010-09-30T05:24:27",
"content": "@Mike (the other mike)the problem with trying to stick to a single Mega8U2 is that half the cpu time/flash space (guessing) would be lost to the USB lib’s, so it wouldnt be 100% compatible with old Mega328 appsbest to dedicate an entire chip to the usb and let the other one run exactly the same as its always done so nothing major changes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188135",
"author": "Lars",
"timestamp": "2010-09-30T14:06:50",
"content": "So it’s like a teensy more or less.I would still prefer the teensy with it’s full Speed USB connection directly to the MCU and the better price tag.However, all teensy boards seem to be sold out because of this new PS3-hack. Even the AVRs used in all those Boards are out of stock everywhere! Damn.Does anyone know where to get a teensy now ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "194220",
"author": "Haris Hashim",
"timestamp": "2010-10-10T00:43:37",
"content": "About why 2 MCU.What people don’t mention here is that the Arduino board always has a replaceable ATMEga chip design. Meaning you can unplug the chip and plug in new ATMEGA328 or ATMEGA168 into it. It give lots of flexibility.Other thing that is totally my speculation. A nice to have feature that is not in Arduino yet is in circuit debugging. Or some way of doing that. Having 2 AVR is a move in the right direction for this. TheATMega8U2 chip is programmable and have some kind of debug wire interface. If this does not happen in Uno, perhaps in next release?I agree with Grenadier regarding the missed opportunity of making ATMEGA8u2 GPIO pin available on the board. In fact that will make the Uno a significant upgrade. Making ways for shield upgrade as well. Imagine having new generation shield with additional I/O pins but totally compatible with the previous hardware board. That will make Uno release an excellent reboot yet backward compatible of the platform.Come to think of it, this is the way to move forward. Since the ATMega328 pin out is already all exposed. The only way to upgrade is to have 2 AVR chip to give more I/O. And by realizing this suddenly the beauty of the design become apparent :D (for those who bitch about why there is two chip in there!).Warmest Regards!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.316236
|
||
https://hackaday.com/2010/09/27/beginner-concepts-all-about-avr-interrupts/
|
Beginner Concepts: All About AVR Interrupts
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"AVR",
"beginner concepts",
"external",
"interrupts"
] |
Microcontroller interrupts are one of the big tools in our embedded programming arsenal. They make the chip listen for particular events, and once detected they stop what they’re doing and run a separate set of code called and Interrupt Service Routine. We’ve come across two fairly new tutorials on the subject that you should check out if you’re not yet a master on the topic. One is
a ProtoShack tutorial on ATmega168 external interrupts
, and the other is
a Newbie’s Guide to AVR Interrupts
by [Dean Camera] (we’ve been a fan of his tutorials for some time). Both cover a range of topics from what interrupts are, to avoiding the common problems of volatile data types and the compiler optimization caveats.
What can you do with interrupts? External interrupts can be used to wake up a project like
this LED menorah
from sleep mode. Interrupts can be used to monitor a timer for a certain value or an overflow for use in generating a
pulse-width modulation
signal. The TI Launchpad uses an interval timer interrupt for button debouncing in projects like
this code which was ported from an AVR chip
. The source for both is available if you wanted to compare how the two differ.
Interrupts are powerful. Learn them, love them, use them.
| 10
| 10
|
[
{
"comment_id": "186617",
"author": "bryan",
"timestamp": "2010-09-27T15:59:24",
"content": "love all the ‘n00b concept’ posts.. seriously.. it makes the HAD grow. thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186623",
"author": "r_d",
"timestamp": "2010-09-27T16:12:26",
"content": "Good post.I’m sure a lot of us who work with AVRs already know this, but that’s probably why it’s labelled “beginner concepts”.In any case, it’s a whole lot more relevant than those terribad C# and Java/Android applications development tutorials were (the latter didn’t so much as mention the NDK, which is what HaD should be most interested in!).This is precisely what the programming tutorials should be.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186628",
"author": "d",
"timestamp": "2010-09-27T16:36:40",
"content": "nice title nice post",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186629",
"author": "James",
"timestamp": "2010-09-27T16:36:54",
"content": "Is terribad a new word? Love it. Might start using it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186633",
"author": "fluidic",
"timestamp": "2010-09-27T16:48:07",
"content": "Interrupts – they do what it says on the tin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186644",
"author": "DarkFader",
"timestamp": "2010-09-27T17:44:23",
"content": "You don’t want to interrupts so much and that long though. It’s great if you have DMA with it.I could only write 60KB/s from network to an SD card using interrupts and SPI, which is like w00t. But at least it doesn’t block the main program.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186662",
"author": "Navic",
"timestamp": "2010-09-27T19:05:09",
"content": "“Interrupts are powerful. Learn them, love them, use them.” – Awesome line!! Wish it was on a t-shirt, lol!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187047",
"author": "elektrophreak",
"timestamp": "2010-09-28T06:00:34",
"content": "It is not ProtoShack.. it is ProtoStack :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187125",
"author": "Malikaii",
"timestamp": "2010-09-28T06:52:39",
"content": "So, is this taking the place of the C# development tutorial for this week? I was looking forward to that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187176",
"author": "pall.e",
"timestamp": "2010-09-28T10:19:27",
"content": "big fan of these beginner concepts post. Keep them coming HAD",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,368.896903
|
||
https://hackaday.com/2010/09/27/scanning-tunneling-microscope-under-gpl3/
|
Scanning Tunneling Microscope Under GPL3
|
Mike Szczys
|
[
"chemistry hacks"
] |
[
"gpl",
"needle",
"probe",
"scanning tunneling microscope",
"stm"
] |
ChemHacker has posted
schematics and code for a scanning tunneling microscope
. [Sacha De’Angeli] finalized the proof-of-concept design for version 0.1 and released all of the information under the
Gnu general public license version 3
. You’ll need to build a sensor from a combination of a needle, a piezo, and a ring of magnets. There’s an analog circuit that gathers data from the probe, which is then formatted by and Arduino and sent to your computer.
We haven’t really dabbled in this type of equipment, though
we did cover an STM earlier in the year
. Take a look at the video after the break and then help jump-start are imagination by sharing your plans for this equipment in the comments.
[youtube=http://www.youtube.com/watch?v=IZmCc2sAHiE]
| 18
| 18
|
[
{
"comment_id": "186590",
"author": "osgeld",
"timestamp": "2010-09-27T14:27:09",
"content": "did I miss the end result images?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186592",
"author": "craig christ",
"timestamp": "2010-09-27T14:44:46",
"content": "“are” imagination? (our imagination)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186597",
"author": "nave.notnilc",
"timestamp": "2010-09-27T14:57:33",
"content": "yeah, it seemed kinda weird to me too that they didn’t have any actual data to display?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186602",
"author": "blah",
"timestamp": "2010-09-27T15:11:53",
"content": "jump-start are imaginations/are/our/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186603",
"author": "Masta Squidge",
"timestamp": "2010-09-27T15:13:44",
"content": "You two should probably read the page. He is at the proof of concept stage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186624",
"author": "Toolboy",
"timestamp": "2010-09-27T16:14:17",
"content": "It’s based on a design that’s been kicking around the web for over ten years. I built one myself (using a Burleigh controller)– works sort of, but the scanner is extremely non-linear so it’s pretty limited. I think they should pony up the ~$100 for a decent piezo and build the design around that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186627",
"author": "osgeld",
"timestamp": "2010-09-27T16:33:05",
"content": "I did read the page, he has everything setup and testing, so show an image, even a crappy one would have been cooljust saying",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186637",
"author": "David",
"timestamp": "2010-09-27T17:05:51",
"content": "I’m not sure if people are aware of an open source SPM controller software:http://gxsm.sourceforge.net/index.php",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186664",
"author": "RetepV",
"timestamp": "2010-09-27T19:08:14",
"content": "My virus killer pops up when going to their website. HTML/framer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186696",
"author": "Manksteve",
"timestamp": "2010-09-27T20:51:46",
"content": "They had a proper one at uni i was at. the entire equipment was mounted on a vibration isolating table there very vulnerable to vibration.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186701",
"author": "ZeUs",
"timestamp": "2010-09-27T21:03:34",
"content": "So dump your scanner, it obviously sucks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186704",
"author": "Whatnot",
"timestamp": "2010-09-27T21:14:51",
"content": "“still figuring out how to get a stable trace”So basically it’s not working, and it might never.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186733",
"author": "Mikey",
"timestamp": "2010-09-27T22:03:57",
"content": "Soo… it’s not done … or even close to done then? And they GPL’d this crap… and posted a video of it doing nothing… because why?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186779",
"author": "JJ",
"timestamp": "2010-09-27T23:47:01",
"content": "Just had a quick read about STM’s, and how extremely precise the tech is, the expense, and how sensitive they are to the environment. The tolerances are extreme. This is just way too crude to work.I’m gonna bet this guy built it as a theoretical model more than a working atomic level microscope.Maybe he can image something on a much larger scale? But I don’t think this works anywhere near the operation of a real STM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186796",
"author": "Scott Torborg",
"timestamp": "2010-09-28T00:20:58",
"content": "A similar project from a while back:http://sxm4.uni-muenster.de/stm%2Den/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186873",
"author": "Whatnot",
"timestamp": "2010-09-28T03:03:12",
"content": "@JJ yeah I think having it on some dinky table on some foam might not be quite enough, you need a setup like they use to make holograms.The (interesting) link provided by Scott Torborg above has this to say on that subject:“A basic requirement for the mechanical construction is efficient dampening of acustical noise in the range of some 10Hz (steps). This is reached by assembling the components in a very small set-up and to connect them as stiff as possible (glueing should be done with a 2-component-epoxyd)Additonal dampening can be reached by the following methods: 1. put the STM on a heavy plate, which is resting on a air-tube, 2. put the microscope on a heavy plate which is suspended by rubber tubes or 3. put the micrsocope into a tub with filled with fine sand”(I left the spelling errors in since it’s a quote)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186879",
"author": "Whatnot",
"timestamp": "2010-09-28T03:05:50",
"content": "Addendum: A book might be heavy but it doesn’t have the solidity to equal a solid plate, I know that from experience.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187214",
"author": "cj",
"timestamp": "2010-09-28T12:46:52",
"content": "Having no pictures is not all that surprising. My wife did her phd thesis in the construction of an stm (this was in 1990-1995) and didn’t have a single picture for years (and years and years).You might be interested to know: Her supervisor spent something like $300k+ constructing this ultra high vacuum stm, and in the 4th year a salesman approached him with an in-air stm for $50k. Closest I’ve ever seen him cry.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,368.768975
|
||
https://hackaday.com/2010/09/27/making-your-own-lithium-ion-batteries/
|
Making Your Own Lithium-ion Batteries
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"battery",
"cell",
"controller",
"lithium ion"
] |
You can make your own lithium-ion batteries if you have a source for individual cells and a control board to match your desired voltage levels. [Bill Porter]
put together a quick tutorial
where he makes a 14.4V 2.2 AH battery for about $10. He picked up a set of cable-modem backup batteries (used to make sure your bundled phone service doesn’t quit working when the power goes out) and tore out the cells. After reconfiguring the connections and swapping out the controller board the original 8V battery is now 14V. This doesn’t take into account any problems with battery life and charge leveling, but that’s a whole different tutorial waiting to happen.
If this type of battery hack is child’s play to you, take a look at
a more involved lithium iron phosphate build
.
| 23
| 22
|
[
{
"comment_id": "186584",
"author": "Just saying...",
"timestamp": "2010-09-27T13:41:23",
"content": "Don’t leave that in a parking lot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186585",
"author": "John Boxall",
"timestamp": "2010-09-27T13:50:37",
"content": "Kudos to the first person who can take a photo of themselves holding something the same as that while inflight.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186586",
"author": "lwatcdr",
"timestamp": "2010-09-27T14:10:56",
"content": "Make your own battery packs that is not your own batteries. Each of those cells is a battery vs a multi cell battery like in your car.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1260861",
"author": "Oscar",
"timestamp": "2014-03-13T22:32:29",
"content": "you don’t understand. The key thing is to have a controlled Li Ion pack with a balancing board",
"parent_id": "186586",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "186589",
"author": "Olestra",
"timestamp": "2010-09-27T14:23:16",
"content": "I think the article title is a bit misleading, maybe “Making your own lithium-ion battery packs” since I see no construction of the battery itself.not that this isn’t cool, it is! just sayin’ I see no construction of a battery, just assembling a battery pack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186593",
"author": "Luke",
"timestamp": "2010-09-27T14:44:57",
"content": "Agree with all of the above. This gives me a lot of ideas!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186594",
"author": "Colecoman1982",
"timestamp": "2010-09-27T14:51:22",
"content": "“Make your own battery packs that is not your own batteries. Each of those cells is a battery vs a multi cell battery like in your car.”You seem to be confused about the English language (though, it’s understandable since we Americans do seem to use the term “battery” to incorrectly refer to cells). The, actual, definition of the word “battery” is a number of cells combined into one unit. It’s derived from the military term for a group of artillery. Technically speaking, (the best kind of speaking) a “battery pack” would be a group of these groups of cells.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186599",
"author": "James",
"timestamp": "2010-09-27T15:01:41",
"content": "Beautifully pedantic Colecoman1982. Hero of the day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186601",
"author": "Chuck Norris",
"timestamp": "2010-09-27T15:10:27",
"content": "You should make a belt that will hold a bunch of those around your waist. Maybe a quick release button that you hold in your hand with a wire going back to the belt. Test it out in a crowded public place.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186605",
"author": "CutThroughStuffGuy",
"timestamp": "2010-09-27T15:20:29",
"content": "This device looks completely and utterly safe. No question about that at all. Nope, none.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186615",
"author": "Ken",
"timestamp": "2010-09-27T15:52:34",
"content": "“Hero of the day”? I hope that was sarcasm.“Battery” properly refers to both the pack and the individually packaged cells that go into it. This is not a American foible – the OED specifically mentions such devices “whether of one cell or more”. More recent (and less formal) definitions observe that a battery comprises one or more cells within a container. Still, it can be useful (as well as correct) to refer to the individual cell that make up the pack if the distinction is not clear.Now here’s the disclaimer that HAD failed to mention: Li-ion batteries are high energy devices that will release their energy in an uncontrolled manner (e.g. burst into flames) when abused. Li-ion batteries do not tolerate over-charge or -discharge, and they require specific charging strategies. Hopefully, you will find modern cells with built in protection mechanisms that permanently disconnect the battery, rather than exploding, if you screw up. The old DIY advice was to charge your homebrew li-ion pack in a safe container (e.g. tin can) on a heat tolerant surface like a concrete driveway. You have been warned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186621",
"author": "Bill",
"timestamp": "2010-09-27T16:07:28",
"content": "The PCB you see in the picture acts as the safety, it will disconnect the pack if it is shorted, and it also balances the cells during charge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186639",
"author": "loans",
"timestamp": "2010-09-27T17:06:39",
"content": "s/making/assembling/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186640",
"author": "mungewell",
"timestamp": "2010-09-27T17:14:47",
"content": "Li-Ion batteries can be ‘unsafe’ and have the potential for causing a lot of damage, however when used with a safety circuit that risk should drop to almost zero.A good safety circuit will monitor pack temp, individual cell voltages, pack current, etc and instruct the smart charger what voltage/current to apply. Under adverse conditions it will either temporally or permanently disable charge/discharge.‘Good’ Cells also come with a pressure venting system which further protects the individual cells.Bottom line: if you use a smart charger and correctly programmed safety circuit there should be little risk. If you deliberatly set out to damage a pack, you can make a big mess….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186660",
"author": "asheets",
"timestamp": "2010-09-27T18:58:06",
"content": "The assembly is easy — it’s the soldering of all the tabs that tends to be a pain…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186734",
"author": "Fallingwater",
"timestamp": "2010-09-27T22:04:10",
"content": "Some time ago, I wrote a guide for soldering to cells – LiIon and not – that might come in handy for doing this sort of stuff. If interested, find it here ->http://www.technfun.com/soldercells.shtml",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186767",
"author": "LifeSizeActionFigure",
"timestamp": "2010-09-27T23:22:54",
"content": "My first impression of this article after reading the headline was that you were going to show how to make the individual cells. That would be very interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186847",
"author": "Bill",
"timestamp": "2010-09-28T02:15:08",
"content": "Thanks Fallingwater, I added a link to your tutorial in my blog, hope you don’t mind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187039",
"author": "molli123",
"timestamp": "2010-09-28T05:42:49",
"content": "I bet they won’t let you enter a plane with one of those in your luggage",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187083",
"author": "Alan Parekh",
"timestamp": "2010-09-28T06:11:14",
"content": "Funny how these battery packs can be so dangerous and the way they are packaged it looks like a bundle of dynamite. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187087",
"author": "aw",
"timestamp": "2010-09-28T06:13:46",
"content": "People often mention good safety circuits and chips that can monitor the charge and discharge.Are there any guides on building the circuit or the chips one may use? An application where the battery pack can be integrated and charged within the device (auto switch charging or running via ac adapter) would be really neat.The max1555 sounds pretty close to that but its hard to find and will only charge a single cell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187634",
"author": "El Gordo",
"timestamp": "2010-09-29T07:42:07",
"content": "When I saw the article title I was going to come post a warning about keeping Lithium around. These days you can get an intent to manufacture meth charge having that and cold medicine in the same building. I made the same cell vs. Battery syntax error as someone else though so now I don’t feel so bad…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6314768",
"author": "DEEPAK R",
"timestamp": "2021-01-23T06:16:17",
"content": "Can do lithium ion for project work",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,368.951711
|
||
https://hackaday.com/2010/09/26/drm-causes-vulnerabilities/
|
DRM Causes Vulnerabilities
|
Caleb Kraft
|
[
"News",
"Security Hacks"
] |
[
"digital rights management",
"dll",
"drm",
"exploit",
"microsoft"
] |
We often hear people touting the evilness of DRM, but usually they are talking about the idea of ownership. In this case, DRM is actually causing harm. It turns out that Microsoft’s msnetobj.dll, which is supposed to enforce DRM on your computer, stopping you from doing certain things like saving files you don’t “own”
is open to 3 attacks
. Vulnerable to
buffer overflow
, integer overflow, and denial of service, this sucker is riddled with issues.
The vulnerabilities in this file aren’t groundbreaking. Buffer overflow is a common method to get to many systems. The problem here, according to some commenters at BoingBoing, is the fact that this DLL is called every time you open a media file.
[via
BoingBoing
]
| 26
| 26
|
[
{
"comment_id": "186295",
"author": "Alexander Rossie",
"timestamp": "2010-09-26T20:18:42",
"content": "Why is this on HaD?Also RIP milw0rm.com =]",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186335",
"author": "AS",
"timestamp": "2010-09-26T21:08:43",
"content": "Luckily, nobody here would use such a ridiculous system. Right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186340",
"author": "DiRWiN",
"timestamp": "2010-09-26T21:31:56",
"content": "its on hackaday because they forgot they arent SlashDot again",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186350",
"author": "Amtal",
"timestamp": "2010-09-26T22:20:54",
"content": "A bit more detail about when the faulty DLL gets used would be interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186367",
"author": "m!nus",
"timestamp": "2010-09-26T22:39:03",
"content": "Write a virus that uses this vuln and let it remove all DRM-stuff it finds :DAlso, milw0rm has been dead for about a year.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186368",
"author": "Osgeld",
"timestamp": "2010-09-26T22:43:42",
"content": "“its on hackaday because they forgot they arent SlashDot again”well to be fair slashdot is too busy forgetting they are not macworld so someone has to do it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186376",
"author": "Zotty",
"timestamp": "2010-09-26T22:59:09",
"content": "“… the fact that this DLL is called every time you open a media file”Then don’t use a player that uses that DLL ;)Btw, what does this have to do with hacking?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186420",
"author": "FDP",
"timestamp": "2010-09-27T00:32:04",
"content": "Anyone else remember when Sony opened up PCs to rootkits with their ridiculous music DRM a while back…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186426",
"author": "Badger",
"timestamp": "2010-09-27T01:04:41",
"content": "Why don’t one of you guys write a fix/ exploit for M$’ msnetobj.dll instead of complaining why its here, and give Hack-a-day something more to post about?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186429",
"author": "jeditalian",
"timestamp": "2010-09-27T01:12:21",
"content": "OMG someone please code a new msnetobj.dll because i don’t want to be able to possess any music that i didn’t pay for and thus legally own the right to play in my own home or car, as long as it is not duplicated and played at a volume where someone who didn’t pay for the song might hear it.Damn Radio Music.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186430",
"author": "jeditalian",
"timestamp": "2010-09-27T01:15:49",
"content": "idk what milw0rm is but i use btjunkie.org for my legal torrenting pleasure and they seem to have been under attack recently or maybe it really is just massive server load from all the traffic that moved to btjunkie after tpb and the others got shutdown. i never used any of the ones that got shutdown anyway",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186431",
"author": "Nick",
"timestamp": "2010-09-27T01:30:56",
"content": "TPB is online…?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186453",
"author": "Anon",
"timestamp": "2010-09-27T02:23:37",
"content": "Awwww yaaaaa, metasploit payload on its way comrades, keep up the good work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186457",
"author": "jeditalian",
"timestamp": "2010-09-27T02:47:52",
"content": "yeah it does seem to be online. idk my friend said they got shut down & novatorrent or some shit but i never used TPB because of all the bullshit, i can deal with 2 ads and the ease of use of btjunkie, plus its easier to distinguish real from fake",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186470",
"author": "infinitemayhem",
"timestamp": "2010-09-27T03:55:32",
"content": "TPB didn’t get shut down. thepiratecity.org was the one that was shut down",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186473",
"author": "gregman_1",
"timestamp": "2010-09-27T04:04:59",
"content": "“Why is this on HaD?”Because HaD remembered they aren’t arduinohacks.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186480",
"author": "M4CGYV3R",
"timestamp": "2010-09-27T04:31:17",
"content": "Ok, so you can overflow the buffer…How is that an exploit? Can I execute code or get remote access?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186498",
"author": "ejonesss",
"timestamp": "2010-09-27T05:19:15",
"content": "M4CGYV3R her you can remote access.remember code red from 2000 and 2001? it was the string from byte 256 or 257 and on in a web page url.the iis servers did not check the length of the buffer.now that has been solved because sites like ebay allows very long urls by the time you get lots of excluded keywords in there.so why couldnt they do it again and check the length of the buffer whether it is a text entry field like this comment box or the length of the file and not allow it to run.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186559",
"author": "sexiewasd",
"timestamp": "2010-09-27T11:20:21",
"content": "It’s funny really, I can’t seam to find msnetobj.dll on my computer, maybe it’s hiding in /lib?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186565",
"author": "monkeyslayer56",
"timestamp": "2010-09-27T12:04:00",
"content": "@sexiewasdi did a “locate msnetobj.dll” and still can’t seam to find it either",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186578",
"author": "spit",
"timestamp": "2010-09-27T12:59:10",
"content": "@sexiwasdAre you running as root?Maybe you should try running updatedb first?If you still can’t find it I’ll bet Richard Bloody Stallman stole it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186579",
"author": "spit",
"timestamp": "2010-09-27T13:01:20",
"content": "@sexiwasdtry#updatedbfirstif it still doesn’t turn up – blame Richard Stallman",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186581",
"author": "rallen71366",
"timestamp": "2010-09-27T13:23:46",
"content": "@spit – That’s St. Stallman to you! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186587",
"author": "Whatnot",
"timestamp": "2010-09-27T14:12:20",
"content": "As for not finding it, w7 is particularly authoritarian in hiding files, it’s located in windows/system32 as well as windows/syswow64 if you run a 64bit flavor.And as for not using a player that uses it, that would not work since then you still have the preview icon that’s created by windows, so you’d have to remove previews again (again since windows had a similar issues twice already)And even then, most players that have their own codecs still fall back to windows stuff when meeting some formats.I have my own question to add: Did anybody at MS ever code anything with some kind of check on the input to stop buffer overflow? Or did gates fire you if you showed competence?@spit He’d delete it not steal it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186595",
"author": "RexOfRome",
"timestamp": "2010-09-27T14:54:05",
"content": "Another good reason to switch to Linux. On my last computer build I used Ubuntu and then I switched my server to Debian. Next I switched my kitchen computer to Linux Mint and I am now Microsoft free. There was a big learning curve after running Windows for so many years so I look at that as a “hack”. Well worth the effort, give it a try.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187729",
"author": "ray",
"timestamp": "2010-09-29T15:49:14",
"content": "for the love of god!!! … stop posting this …they will fix it.. muahahahha :Por we think",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.01255
|
||
https://hackaday.com/2010/09/26/ps3-sixaxis-controller-now-houses-exploit/
|
PS3 Sixaxis Controller Now Houses Exploit
|
Mike Szczys
|
[
"Playstation Hacks"
] |
[
"18F2550",
"pic",
"psgroove",
"sixaxis"
] |
[Hasuky] posted
a guide for turning a PlayStation 3 Sixaxis controller into a PSGroove exploit device
(
translated
). Unfortunately you’ve got to crack open the controller and add some parts to get it working. The hack requires a PIC 18F2550 (a chip we’ve already seen
used as a standalone
PSGroove
device
), a crystal, and various resistors and capacitors to connect to the controller’s PCB. From there you connect the USB cable between the controller and the game console and boot using the exploit.
[Thanks Craig via
DCEmu
]
| 31
| 31
|
[
{
"comment_id": "186244",
"author": "biozz",
"timestamp": "2010-09-26T18:22:36",
"content": "hahaha never expected your own devices to exploit your own system now did you Sony? XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186251",
"author": "steaky",
"timestamp": "2010-09-26T18:40:22",
"content": "I am confused. Surely he is just using the six-axis controller’s wire…I dont get why this is better than any other implimentation of the hack, other than its doesnt look like you are using the exploit. plus, would it have been difficult to get focused pictures.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186256",
"author": "MS3FGX",
"timestamp": "2010-09-26T18:57:33",
"content": "Well, the media really blew this one out of proportion…This doesn’t appear to be anything other than using the PS3 controller as a case for the microcontroller. Everyone was under the impression previously that this was somehow being done with the stock controller hardware. Going to be a lot of sad pirates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186263",
"author": "Addidis",
"timestamp": "2010-09-26T19:12:09",
"content": "hehe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186267",
"author": "bobdole",
"timestamp": "2010-09-26T19:15:40",
"content": "I think this is a really good idea actually…I haven’t really looked into it, but as I understand it, you need to boot the console each time with the exploit device plugged in… This is much easier with a controller, since you’re going to be using that anyway. At least you don’t have to plug your cell phone into your console each time you start it up.. Your controller is probably already plugged in to charge anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186279",
"author": "mnlgarbe",
"timestamp": "2010-09-26T19:29:19",
"content": "So…they only use de usb cable?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186297",
"author": "pablo",
"timestamp": "2010-09-26T20:31:49",
"content": "I guess this ups the ante for things to launch PSGroove from. I’m looking forward to someone using a hacked PS3 and a USB file transfer cable to launch PSGroove in the most meta way possible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186312",
"author": "rburgandy",
"timestamp": "2010-09-26T20:41:02",
"content": "pirates are the lowest form of scum. reading those ps3 forums sickens me. what a bunch of losers.and would you stop calling this an exploit. it’s not. it’s an emulated stolen dongle that gives you elevated privileges. sony disabled it, and now lets see these hotshots break the newer firmware. not gonna happen, because these are not real hackers(the original psjailbreak guys). the psgroove and etc. are just like script kiddies; no talent, only being dirty pirates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186316",
"author": "mike",
"timestamp": "2010-09-26T20:47:58",
"content": "Downside is that pic is always on as long as your controller is on where with a standalone usb exploit you can unplug after booting.I read that this cause the pic to get very hot and kills life and possible ignition.Guy who put this together removed his youtube video and re uploaded it without sound suspiciously after comments were made about clicks of a rear mounted button were made.In essence he seemed like he was trying to make everyone believe he was able to do it with only the sixaxis hardware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186322",
"author": "fluidic",
"timestamp": "2010-09-26T20:55:57",
"content": "@MS3FGXTo most people, anything involving a circuit board is equivalent to magic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186342",
"author": "morphiend",
"timestamp": "2010-09-26T21:35:55",
"content": "Actually, the ‘hidden’ purpose for this is that the PS3 controller should show up on the USB bus as a proper device which isn’t banned by the latest firmware updates from Sony. Then after gaining access to the USB bus, the PIC can then launch its exploit via the raw USB commands and badda-boom-badda-bing, you still have an operation exploit.To defeat it, Sony will rev its firmware and validate incoming USB data to ensure its properly formatted from a Sony Controller. If the exploit works as I previously stated, I expect yet another update from Sony in a week or so.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186346",
"author": "Williams",
"timestamp": "2010-09-26T21:59:54",
"content": "You can find the pichip 18f2550 using the link below :)http://cgi.ebay.co.uk/MICROCHIP-PIC18F2550-I-P-USB-FLASH-MCU-18F2550-UK-/150496180953?pt=LH_DefaultDomain_3&hash=item230a457ad9",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186347",
"author": "Peter",
"timestamp": "2010-09-26T22:09:25",
"content": "@mike,I can’t believe that keeping it running 100% of the time would cause overheating issues or killing the life of the chip. These chips are used in embedded devices all the time in a variety of applications and I haven’t heard of any issues with chips burning out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186351",
"author": "andrew",
"timestamp": "2010-09-26T22:25:48",
"content": "I think it’s cool that he put the chip in a controller — most people I know don’t leave their controllers plugged in (they’re wireless after all). I’m still waiting for someone to port the code to some device I already own.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186372",
"author": "w0rl4ck",
"timestamp": "2010-09-26T22:49:04",
"content": "pic24fj64",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186374",
"author": "w0rl4ck",
"timestamp": "2010-09-26T22:56:44",
"content": "or buspirate",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186375",
"author": "Peter",
"timestamp": "2010-09-26T22:58:13",
"content": "Those photos are horrible. How can such a smart fella take such rubbish photos?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186389",
"author": "DarkFader",
"timestamp": "2010-09-26T23:45:10",
"content": "Don’t you just need it just once to install a pkg-installer? …or use FTP to copy pkg’s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186392",
"author": "Minousoft",
"timestamp": "2010-09-26T23:59:18",
"content": "The controller is just used as a USB cable and housing for the device… but it’s still an ironic choice of host!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186448",
"author": "James",
"timestamp": "2010-09-27T01:54:45",
"content": "@rburgandyYou really have no idea what you are talking about, do you?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186449",
"author": "inedible",
"timestamp": "2010-09-27T02:05:36",
"content": "Does the controller not use any of the data lines? Does it just use the usb plug for 5v?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186454",
"author": "Lewis",
"timestamp": "2010-09-27T02:24:01",
"content": "With the new 3.5 Firmware, it disabled many Non-Sony USB controllers. So the jailbreak exploit would be stopped. Since you are making a Sony product capable of doing the same thing, it will be a lot harder to stop. Since the exploit has come out there are many package files that many people are using. Such as being able to buy new games and being able to play them on lower Firmware than was is installed on the disk. Pretty soon, the community will be able to point the PS3 to other websites to get modified updates and other PS3 goodies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186501",
"author": "t&p",
"timestamp": "2010-09-27T05:40:08",
"content": ">>Well, the media really blew this one out of proportionthis is what I thought, and Slashdot killed my reply about it.if the ps3 uses the usb like the xbox360 then all the usb cord does is power the remote as it still sends everything by wireless (bluetooth?) So nothing is really going on here other then some kid that connected some wires to some traces for power.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186524",
"author": "Jorge",
"timestamp": "2010-09-27T07:28:04",
"content": "The USB tethered xbox 360 controllers do not operate over wireless t&p. Now the plug and play charge kit for wireless controllers IS just a power cord, but thats obvious. I do not own a ps3 so I don’t know whether or not they have USB-only devices or not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186532",
"author": "ferdi",
"timestamp": "2010-09-27T08:01:06",
"content": "Although not quite crazy that you do not buy that extremely expensive controllers, and goes for the cheap but often false excellent working controller. Sony Warns you now really. So they will block the controllers and they say that these versions may explode.Recent firmware update 3.50 is now blocking unlicensed controllers. Sony warns, when no controllers unclear stores now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186566",
"author": "Amos",
"timestamp": "2010-09-27T12:05:30",
"content": "@t&p: The sixaxis can operate as either a USB or BT device, depending on how it’s connected at power-up. I’ve used mine on my PC with no BT capabilities (using a driver I found on HaD, actually ;)I haven’t read the article… how does he connect both the pad and the “dongle” to one USB connection? Is the pic also emulating a hub? Maybe it is just using the cable and the pad has to use BT as if it was untethered.@Jorge: I don’t think Sony makes any USB-only pads, but I think there are 3rd party ones.My opinion about this whole situation is that the makers of the original device did a disservice to the (eventual) PS3 homebrew community by giving Sony a chance to patch around this before it was used to find a more permanent exploit. I don’t condone piracy, but I *really* want full access to the PS3 hardware (without paying thousands for a dev-kit or giving up access to PSN and the latest games).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186570",
"author": "studioeng",
"timestamp": "2010-09-27T12:25:00",
"content": "To pair a PS3 controller to the console, you have to plug it in and then press the PS button on the controller, so that would suggest some form of communication down the cable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186574",
"author": "Mike Rogers",
"timestamp": "2010-09-27T12:41:39",
"content": "@rburgandy: That was the initial theory. Once the source was released, it was shown to not be the case.This *is* nothing more than a case mod, but to me it makes alot more sense than using your cellphone or calculator. I mean, the controller will always be with the console.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187306",
"author": "boingx",
"timestamp": "2010-09-28T16:54:05",
"content": "The picture shows the bread board layout. Does anyone recognize what tool was used to lay it out?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202451",
"author": "Stealth",
"timestamp": "2010-10-25T08:27:27",
"content": "Does this work on 3.50? Has any1 tried it yet on the latest firmware?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213885",
"author": "Gareth",
"timestamp": "2010-11-17T16:31:12",
"content": "More Pic18f2550 Chips available on ebay cheepGrab them before they are gone again.http://cgi.ebay.co.uk/5-X-MICROCHIP-PIC18F2550-I-SP-USB-FLASH-MCU-18F2550-/150521098808?pt=LH_DefaultDomain_3&hash=item230bc1b238",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.385039
|
||
https://hackaday.com/2010/09/26/from-cinema-to-stills-camera-lens-gets-new-life/
|
From Cinema To Stills, Camera Lens Gets New Life
|
Jakob Griffith
|
[
"digital cameras hacks"
] |
[
"102",
"3.5mm",
"5d",
"camera",
"canon",
"cinema",
"F5.0",
"photography",
"picture"
] |
[Timur Civan], with
a beautiful merge of past and present
, has taken a 102 year old camera lens (a 35mm F5.0 from hand cranked cinema cameras) and attached it to his Canon EOS 5D. While this is not the first time we’ve seen someone custom make a camera lens or attach a lens to a different camera, such as when we brought you
plumbing tilt shift
or
iPhone camera SLR
or
Pringles can macro photography
, the merge of old tech with new warms our
empty chest cavities
hearts. Catch some additional shots of 1908/2010 New York City after the jump.
| 29
| 29
|
[
{
"comment_id": "186240",
"author": "biozz",
"timestamp": "2010-09-26T18:10:22",
"content": "i like the combination of “canon artifacts” caused by canon cameras and the artifacts of the old lensit gives a nice touch of old photography without the pain of film",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186242",
"author": "DPHacker",
"timestamp": "2010-09-26T18:16:07",
"content": "@biozzYes, the lack of clearity and high noise found in canon cameras today makes a great mix with old lenses to produce an old effect and gives new life to cameras that professional photographers tend to throw aside.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186245",
"author": "Jeremy",
"timestamp": "2010-09-26T18:22:40",
"content": "Gotta love the mouseovers!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186246",
"author": "android three",
"timestamp": "2010-09-26T18:27:51",
"content": "i want to see what it looks like on a nikon!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186247",
"author": "Renee",
"timestamp": "2010-09-26T18:36:59",
"content": "What exactly are “Canon” artifacts? I don’t really see anything in those pics other than what’s to be expected from a lens of that type and age. Which is beautiful of course but I’ve never heard of Canon artifacts before and I’ve been shooting Canon for quite some time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186253",
"author": "Mr Hacker",
"timestamp": "2010-09-26T18:49:44",
"content": "the take your mouse off me alt text was praobably taken from doghouse diaries",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186254",
"author": "jim",
"timestamp": "2010-09-26T18:55:06",
"content": "Nice, but the focal length of a lens is determined by the image area — unless this is from a 35mm projector, the length is different in this application.Biozz — the 5D is a full frame camera, so it has very low noise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186258",
"author": "Renee",
"timestamp": "2010-09-26T19:00:12",
"content": "Umm, the focal length of a lens is determined by the lens, not by the image area.The magnification of the image however, is determined by the size of the film plane/sensor.For example in a 35mm format camera the lens needs to be around 50mm for you to have a “normal” magnification. Or in other words, similar to what you see out of your eye.When you scale up for example to 120 format the lens focal length needs to increase to about 75-80 for you to have a “normal” magnification.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186278",
"author": "HFH",
"timestamp": "2010-09-26T19:24:19",
"content": "One thing I would never spend money for, stupid expensive cannon cameras. Every crappy phone has 2 megapixel cams now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186433",
"author": "PsychoNerd91",
"timestamp": "2010-09-27T01:38:29",
"content": "lol, never realised hack a day had alt text",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186459",
"author": "Renee",
"timestamp": "2010-09-27T02:48:52",
"content": "@ HFHJust because you have no use for something doesn’t mean it’s crappy.For starters DSLR’s have way more than 2 megapixels so on that alone its valid.However the significant difference is that phone-cameras don’t tend to have things like shutters and apertures which are both a must if you want full control of your image.For example you can’t do a long exposure photograph on a camera-phone because there is no way to regulate light coming in other than to just activate and deactivate the sensor. If you have no aperture to close down the amount of light coming in the image will quickly become blown out.Simply recording an image for posterity is not synonymous with photography as a medium.Also, since when are Canon camera’s high noise? They aren’t any worse than any other DLSR like Nikon and such. The noise is just a product of the nature of CMOS sensors. You only really notice it if you bump up the ISO or if you have the sensor running long enough to get hot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186460",
"author": "Spork",
"timestamp": "2010-09-27T03:06:51",
"content": "This is a very cool retrofit. I like the very 1920’s feel I get from those images. (Yes, I know it’s from 1908.) I would definitely do this kind of mod if I had an old lens lying around.That said, Renee is right. The newer Canon (Nikon, etc) cameras show almost no noise/artifacts at low ISO. Even at full resolution on a computer screen. I’m not sure what the other posters meant (or if they were just bashing Canon?), but it doesn’t make much sense.@HFHYep, no reason for crappy expensive computers either. I picked up this C64 for next to nothing and it’s great for posting on HaD.@ReneeMegapixels have no effect on clarity of picture. I have had 5MPx cameras that shoot like crap and 2MPx cameras with a zeiss lens that will blow your mind. Optics are a much bigger deal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186462",
"author": "Renee",
"timestamp": "2010-09-27T03:17:56",
"content": "Yeah, I know that. I was just pointing out that if you’re going to judge something based on a raw, face-value approach that doesn’t really leave you with any point.If just megapixels alone is one’s argument then it falls short because DSLR’s have waaay more.But yeah, there are tons of factors that have to be weighed if you want to judge what makes a camera good or not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186465",
"author": "Renee",
"timestamp": "2010-09-27T03:25:51",
"content": "Also, I must be going blind or something because I can’t see ANY noise in any of the photos. Unless I’m missing some link to a super high-res version of the pics or something.There is just no way to see noise in an image of that size. I see some definite vignetting (which I love) but I’m guessing that’s because the original lens was designed for film format 35mm and not still image.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186466",
"author": "Nemo",
"timestamp": "2010-09-27T03:33:26",
"content": "biozz chill it, troll. Let’s see you pack your Sinar X in a shoulder bag and get on the subway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186472",
"author": "D_",
"timestamp": "2010-09-27T04:03:08",
"content": "Yea it does look goofy. I surprised n one characterized it as steam punk.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186511",
"author": "orly",
"timestamp": "2010-09-27T06:27:22",
"content": "why would the quality or name of the equipment matter here, this is art and if you make an image using whatever method you need to produce it then does it really matter which one you chose (unless it has symbolic significance)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186562",
"author": "James",
"timestamp": "2010-09-27T11:28:28",
"content": "A couple of them show a tiny bit of noise in the shadows, but no more than any other high end camera would in the same situation. Possibly more noise gets introduced in the PP than in the camera anyway.Canon does have its slight differences from Nikon but only a pro photog would ever find them limiting, and only if they had a specific repeatable task that worked in that envelope. I think the problem is people with no idea about cameras other than “it takes a photos with X pixels” commenting. Older Canons have “a lot” of high ISO pattern noise making them less good for short exposure low-light shots, but that “lot” isn’t even remotely close to the amount noise from a 2 or 5MP compact of a couple of years ago, or any phone camera.Lenses effect sharpness and colour rendition, not noise.Nice shots anyway, and I like the hack, even if it does seem to be purposefully disabling the camera!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186575",
"author": "localroger",
"timestamp": "2010-09-27T12:41:46",
"content": "The main reason these shots look the way they do is that the lens was probably only intended to cover at most a 16mm frame, instead of the Canon’s full size 35mm sensor, so of course the image goes dim and foggy outside of this zone, and even in its design footprint it’s not as sharp as more modern lenses.In the other direction you can use surplus copy lenses as mid-range telephotos; they are much longer and heavier than regular camera lenses but because they were designed to cover a very wide, very flat field at very high resolution they make really fine images.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186613",
"author": "therian",
"timestamp": "2010-09-27T15:40:44",
"content": "If it ain’t broke, don’t fix it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186702",
"author": "sam",
"timestamp": "2010-09-27T21:03:43",
"content": "On the other hand, more megapixels are not so bad. In the end More Megapixels end up compensating for noise.I can go more into debating but then there is no requirement since we are not discussing DSLR’s or image sensors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186706",
"author": "Renee",
"timestamp": "2010-09-27T21:27:42",
"content": "I don’t think past issues with Canon cameras equals “canon artifacts,” besides Nikon has its own issues too.Both Nikons, Canons and frankly all DSLR’s have their own versions of noise and you can’t really single one of them out.But then again I shoot Canon so maybe I’m biased.But then again all my friends shoot Nikons of various cost and they all have noise issues of varying degrees and it all overlaps really.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186714",
"author": "Renee",
"timestamp": "2010-09-27T21:35:37",
"content": "When I read “Canon noise” I think “noise specific to Canon” or “unique noise that Canon has.” As if there is this distinct and special form of noise generated from Canon cameras.But that’s not really what it is. It’s more like older Canon’s were prone to having this generic thing called “noise” more so than other cameras.My brain is seriously obsessed with language and semantics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186716",
"author": "therian",
"timestamp": "2010-09-27T21:37:53",
"content": "“On the other hand, more megapixels are not so bad. In the end More Megapixels end up compensating for noise.”Actually more megapixels add more noise since its mean the physical size of each pixel become smaller so less light is captured by each which often result in pink noise",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186749",
"author": "Renee",
"timestamp": "2010-09-27T22:31:05",
"content": "Assuming you’re talking about the same size sensor, but yeah totally.That’s why I avoid some photo stores. “But this model has a million more pixels than the other model, it’s better!!” Uhh, yeah….Does anyone happen to know of a good resource that lists pixel pitch, number of pixels and sensor size? That would be awesome.I think most of the lower consumer model Nikon’s and Canon’s have roughly the same size sensor and pixel count. I know that there is definitely some major overlap when you look at the full lineup. Which is partially why I reject the idea of singling any one particular out as being bad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187177",
"author": "cgmark",
"timestamp": "2010-09-28T10:20:29",
"content": "I’m doing this with one of the new hd webcams and old camera lenses. I hate that they paired a plastic lens with fixed focus on such a nice megapixel sensor.Hope it improves the quality .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187298",
"author": "Seth",
"timestamp": "2010-09-28T16:28:26",
"content": "I prefer film and my 116 yr-old lens came with my 116 yr-old camera ;)http://twitpic.com/2sts1l",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187763",
"author": "Turkeydinner",
"timestamp": "2010-09-29T17:22:36",
"content": "There was definitely some post production going on in these. That takes away all merit of the lense’s true performance.Crop? B&W? Come on, show us an untampered shot or two.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "197254",
"author": "bill sutherland",
"timestamp": "2010-10-15T12:14:34",
"content": "Most lenses that were built with out a multi-coating will appear to be able to capture a somewhat acceptable image in b/w. But look at a color image and you will notice it right away. Colors will mix and appear over exposed.This is taught at most photography schools in what most see pre-1960 lenses…. ???Want some interesting results? Take a Rodenstock lens, called the Imagon, and use it. Creates some very interesting reflective surfaces and generates great skin tones. That is why it was invented for cinematography– it has one convex element and different hole apertures.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.541729
|
||
https://hackaday.com/2010/09/26/portable-password-vault/
|
Portable Password Vault
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"at89s5131",
"Atmel",
"password",
"vault"
] |
This little
box remembers all of your user names and passwords
. Inside you’ll find an Atmel AT89S5131 microcontroller which has built-in USB capability. When the box is plugged into a USB port it identifies as a keyboard. Manipulating the buttons on the top and side will select and print out various stored usernames and passwords. Passwords are generated on-chip from a random seed and the device itself requires a passcode after power up as a security feature.
[SigFLUP’s] included a pretty nifty configuration algorithm. It doesn’t rely on a terminal connection, since the device is a keyboard you can communicate with it in an editor window (which should make it platform independent). There’s no code available, but trying to write your own to the spec outlined in the demo after the break will make for a fun weekend project.
[youtube=http://www.youtube.com/watch?v=BD3F3iBIl7c]
(We almost made it to the end of the post WITHOUT saying “
Setec Astronomy
“)
| 38
| 38
|
[
{
"comment_id": "186160",
"author": "Addidis",
"timestamp": "2010-09-26T14:31:13",
"content": "its very similar to the rfid hid device I was considering. :D minus the rfid part. hehe.No code again. bummer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186162",
"author": "sigflup",
"timestamp": "2010-09-26T14:41:57",
"content": "Hello Addidis! Well, mail me atpantsbutt@gmail.comand I’ll mail back the a hex file for you. I’m not keen on showing the source code because it’s really really messy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186174",
"author": "projectbluebook",
"timestamp": "2010-09-26T15:07:11",
"content": "hehe.. emulating a keyboard is pretty neat.i did wonder about using a broken usb keyboard (where some keys are broken) as the base for this, and a cheap micro such as 16F84 as the storage element and password selector.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186176",
"author": "Ben Ryves",
"timestamp": "2010-09-26T15:11:47",
"content": "@projectbluebook: V-USB has a demo project that makes designing a USB keyboard nice and easy –http://www.obdev.at/products/vusb/prjdetail.php?pid=5There’s a VID/PID pair you can use (subject to the terms in the documentation) too. All you need on the hardware side is an AVR, the USB magic is done in software. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186177",
"author": "snowdruid",
"timestamp": "2010-09-26T15:19:45",
"content": "nice projet and very nice reference to sneakers….. its a good movie by the way ^^ too bad this little box dosent crack the code just saves it …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186178",
"author": "sigflup",
"timestamp": "2010-09-26T15:30:17",
"content": "Ok, here’s the firmware:http://hobones.dogsoft.net/passypass.hexif anyone wants it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186179",
"author": "sigflup",
"timestamp": "2010-09-26T15:33:11",
"content": "… if you program your avr with that you’ll either have to hit the “reset” button on the passy pass to clear out the eeprom or clear it with your programmer. You can’t proceed without that all being zeros.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186183",
"author": "Addidis",
"timestamp": "2010-09-26T15:40:48",
"content": "@sigflupWell bud I can totally understand , but how can the community help you get better if you don’t post it :)I had the misfortune to wreck a car really bad. remembering passwords is a pain in the butt. I currently use a biometric scanner (fingerprints)to handle passwords. This is kinda nice because of the portability.Thanks for posting this :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186184",
"author": "Addidis",
"timestamp": "2010-09-26T15:43:21",
"content": "you should post the actual code going threw disassembly is no fun ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186187",
"author": "sigflup",
"timestamp": "2010-09-26T15:48:22",
"content": "@Addidis, oh it’s really ugly. Perhaps later when it’s re-written and a lot cleaner. I have to do that eventually.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186194",
"author": "Yann Vernier",
"timestamp": "2010-09-26T16:03:44",
"content": "Just to stem the confusion a bit, that hex file probably will do you no good on any AVR – the chip in this build is an8051 based Atmel microcontroller. The 8051 family (now MCS-51) is a very popular 8-bit architecture with many manufacturers, originated by Intel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186198",
"author": "sigflup",
"timestamp": "2010-09-26T16:11:29",
"content": "Sorry mates. Saying avr for anything atmel is very habitual. Yann Vernier is correct, this is an 8051-ish controller",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186199",
"author": "biozz",
"timestamp": "2010-09-26T16:13:21",
"content": "making the job for burglars just that much easier!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186200",
"author": "sigflup",
"timestamp": "2010-09-26T16:17:33",
"content": "@biozz well, I think security has a lot to do with moving secret myself. I think moving it from your head to something that you keep on your belt is worth it. It’s probably more likely that you’ll re-use and/or make bad passwords then it is that someone will rob you for it… i feel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186201",
"author": "Addidis",
"timestamp": "2010-09-26T16:19:02",
"content": "well thats lucky i guess, I have an 8051 dev board sitting here begging to be played with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186202",
"author": "tronic",
"timestamp": "2010-09-26T16:19:32",
"content": "very nice. I was considering building exactly that but didn’t have time to do the research on usb keyboards. again, well done",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186203",
"author": "snowdruid",
"timestamp": "2010-09-26T16:21:22",
"content": "@biozzdont see why. burglars probably wont know what it is and its password protected so not so much on the making it easier part….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186206",
"author": "Red",
"timestamp": "2010-09-26T16:30:06",
"content": "Anyone else spot the possible Uplink reference?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186233",
"author": "Bob",
"timestamp": "2010-09-26T17:33:57",
"content": "Great video there Shaky",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186241",
"author": "sd",
"timestamp": "2010-09-26T18:11:12",
"content": "The video really demonstrates how neat this concept is. I must admit, I was doubtful about the idea from the description alone.My favourite part though has to be the way the menu system works. I initially imagined a binary program on the computer which communicated with the device. The actual implementation is beautifully simple, and cross-platform! Well done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186277",
"author": "HFH",
"timestamp": "2010-09-26T19:21:57",
"content": "I wouldn’t push this crossplatform thing. Its just a keyboard emulator so its obvious that it’s crossplatform.Good hack even tho I will never replace my keepassx+sdcard solution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186293",
"author": "sigflup",
"timestamp": "2010-09-26T20:07:45",
"content": "Awww!!! thank’s sd!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186317",
"author": "ehrichweiss",
"timestamp": "2010-09-26T20:49:29",
"content": "Please post the code soon, I’m highly interested in this. I have an idea that would work great with this. It’s not exactly what you’ve got going on but this would make up about 90% of what I’d need to accomplish.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186319",
"author": "sigflup",
"timestamp": "2010-09-26T20:52:21",
"content": "@ehrichweiss I’ll give you the source code if you want, if you tell me what your idea is- I’m pretty curious. mail me atpantsbutt@gmail.commate",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186330",
"author": "vonskippy",
"timestamp": "2010-09-26T21:00:45",
"content": "That’s why I use passw0rd for all my passwords. See the clever part is the “zero” instead of the “oh” in w0rd. Keeps all those elite hackzors out of my systems. I can tell it’s working because my hard drive light is on practically all the time – which I’m guessing means it’s turning away all those nasties – right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186337",
"author": "sigflup",
"timestamp": "2010-09-26T21:12:15",
"content": "@vonskippy that’s funny, that’s the same code I use for my luggage",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186458",
"author": "japkin",
"timestamp": "2010-09-27T02:47:59",
"content": "Sneakers reference FTW!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186464",
"author": "andrew",
"timestamp": "2010-09-27T03:25:40",
"content": "Seatec Astronomy, bi0tch3s!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186516",
"author": "zing",
"timestamp": "2010-09-27T06:47:11",
"content": "If you have lost windows password,WindowsPassword Key 8.0 is a best choice",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186519",
"author": "Knuckleball",
"timestamp": "2010-09-27T06:59:32",
"content": "TooManySecrets. :) Uplink was SUCH a good game! Awesome to see it still lives in the minds of some.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186536",
"author": "Max",
"timestamp": "2010-09-27T09:29:36",
"content": "I thought of something very similar. Unfortunately i don’t have the technical know how to build anything like this (yet).Now to make it about the size of a USB stick ;D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186583",
"author": "Paul",
"timestamp": "2010-09-27T13:39:54",
"content": "Fun project, I’m maybe ever going to make something similar.If I’ll do I’ll probably start a bit with Alberto Ricci Bitti’s “password vault”That one has source code available (via circuit cellar magazine).Fortunately my subsription started 3 months before Alberto’s article :-)Source code is n C but for a processor (PsOC) I’m completely unfamiliar with.Check it out at:http://www.riccibitti.com/wallet/wallet.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186674",
"author": "Clueless_Being",
"timestamp": "2010-09-27T19:45:12",
"content": "great put all your passwords in one nice place",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186783",
"author": "timmah!",
"timestamp": "2010-09-27T23:56:12",
"content": "Actually it’s “SETEC Astronomy”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186784",
"author": "noise",
"timestamp": "2010-09-27T23:59:44",
"content": "Nice project @sigflup!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186788",
"author": "MS3FGX",
"timestamp": "2010-09-28T00:07:30",
"content": "Clever concept, I especially like the menu.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188347",
"author": "sigflup",
"timestamp": "2010-09-30T20:41:40",
"content": "Thanks MS3FGX!!!Antoine Mercier-Linteau, please give me another email address. The one use use I cannot use. I want to discuss hid reports with you",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "191389",
"author": "LamentableNewb",
"timestamp": "2010-10-05T09:11:46",
"content": "Came across this in my biweekly browse of HaD, and am beyond enthused about it. I almost want to build my own, but… Well, “LamentableNewb” isn’t just an alias. I know my way around a soldering iron and have taken a couple electronics classes but with something like this I just wouldn’t know where to begin. *sigh* So envious.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.289297
|
||
https://hackaday.com/2010/09/25/a-simple-fm-transmitter/
|
A Simple FM Transmitter
|
Mike Szczys
|
[
"Radio Hacks"
] |
[
"condenser",
"fm",
"mic",
"microphone",
"transmitter"
] |
Here is
a low component count FM transmitter
. It sacrifices some features, like the ability to adjust the frequency, for simplicity’s sake. The build method is fairly common with amateur radio but we don’t see it around here too much. Each component gets a 5mm-by-5mm copper clad pad which is super glued to the ground plate as an insulator. There’s even
a pictorial example of this method
if you need some help with visualization.
One of the schematics included in the article shows how to incorporate a condenser microphone into the unit. We guess that makes it pretty easy to add an FM ‘bug’ to your
arsenal of covert listening devices
. Just make sure to check your local laws before building and using this. We’re not sure what the FCC would think of it here in America so we’re hoping some well-informed readers will educate us with a comment.
[Thanks Bart]
| 34
| 34
|
[
{
"comment_id": "185901",
"author": "Jan",
"timestamp": "2010-09-25T22:22:49",
"content": "Well, this kind of device is pretty much flat out illegal to operate anywhere in Europe. You aren’t too likely to get caught due to the low power. However all it takes is only one person who files a complaint about interference on their radio for a van with triangulation equipment to show up.Stuff that transmits on frequency bands not licensed by the operator is illegal, especially on commercial bands. And if you use it as a “bug” you can be sure to get a very stiff fine or even criminal prosecution.If you want to play with radio, either get an amateur radio license or use one of the unlicensed bands. It is much better for everyone involved.Regards,Jan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185903",
"author": "Avicennasis",
"timestamp": "2010-09-25T22:27:22",
"content": "Low power AM/FM transmissions are allowed without a license, provided the range is less than 200 feet.http://www.fcc.gov/mb/audio/lowpwr.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185905",
"author": "GPix",
"timestamp": "2010-09-25T22:31:55",
"content": "We have FM transmitters for mp3 players and the like here in the states. However, they are usually VERY low power (sometimes it can’t make it to the car radio antenna) and so the FCC restriction is really on the output power.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185907",
"author": "arfink",
"timestamp": "2010-09-25T22:40:34",
"content": "I have never seen that kind of board making technique before, it looks like a good way to make more rugged prototypes for cheap.As for FCC regulation of FM broadcasting etc. I have no idea if this is legal by the book, but I would think that as long as the broadcast power is low there should be no problems. Similar devices are sold to broadcast iPods to FM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185910",
"author": "younata",
"timestamp": "2010-09-25T22:41:08",
"content": "Amateur Radio operator here.Basically, the FCC doesn’t care what it transmits so long as it’s in an unlicensed band. Unfortunately, these bands are so crowded that it’s very difficult to get much range in the power you’re allowed to transmit at.A simple google search should reveal what american unlicensed bands are. s/bands/frequencies/ if you need to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185915",
"author": "therian",
"timestamp": "2010-09-25T22:45:53",
"content": "there is much better simple circuits around, newer build single transistor versions it is over-driven so sound and range are terrible",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185917",
"author": "BIOS HazarD",
"timestamp": "2010-09-25T22:49:40",
"content": "I am amazed by some of the things posted on HaD, but this is the first one that makes me want to go out and make. Thanks for the post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185925",
"author": "Hirudinea",
"timestamp": "2010-09-25T22:59:05",
"content": "Isn’t this just like the Broadcast Your Podcast setup?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185961",
"author": "D_",
"timestamp": "2010-09-26T00:36:34",
"content": "Anyone building a transmitter must desire for someone to receive the signal. The most readily available inexpensive FM receivers are for the broadcast band. After siting Tetsuo Kogawa’s webpages it’s clear he is an activist/archaist/ radio pirate, and the intent is to use this transmitter on the broadcast bands; “These workshops also provoke those involved to consider the technical, political, and social ramifications of electromagnetic broadcasts. By building transmitters the workshop participants inevitably deconstruct broadcasting, challenging their own notions of what broadcasting is now and whiat it could be.”Anyway when it come to unlicensed radio transmissions in the USA in any band the FCC expects the transmitted signal to be of good quality.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185968",
"author": "brad",
"timestamp": "2010-09-26T01:19:08",
"content": "so is the large ground plate necessary, or can i shrink this by eliminating it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185969",
"author": "bilbao bob",
"timestamp": "2010-09-26T01:19:36",
"content": "I remember building some of these for friends many decades ago, and then seeing the outcome. Like the guy who promptly put it in a teddy bear to prove that his ex-wife was getting laid now that she was single. Yawn. Maybe if he’d had access to craigslist in the 1970’s, he could have found someone else to spread herpes with.You know what? If you’re finding yourself wanting to spy on an ex, or bug an apartment, or any of a thousand stalker-like behaviors because you need “closure” or “have to know” or whatever…It’s a very good sign that 1) You’re way, way, way creepier than you give yourself credit for – no, really, I mean it – you’re messed up and just haven’t realized how messed up you are, 2) You really don’t need that relationship and 3) I can guarantee that you will do nothing but twist your guts up because he/she/it/they have moved on and you haven’t.It’s almost the same with pirate radio. You can build it, and about 3 guys will listen to it over the course of 4 months before you screw up and your gear gets hunted down and impounded.Seriously – you’d probably have more political and social impact by becoming a mime.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185973",
"author": "Whatnot",
"timestamp": "2010-09-26T01:45:54",
"content": "Request to the management: Can the name of the commenter be put on the top of the comment so I can skip certain people?Because scrolling down each comment then up to read it is a bit annoying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185975",
"author": "blue carbuncle",
"timestamp": "2010-09-26T01:50:52",
"content": "I love the basic electronic project posts HAD :) Please keep it up :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185995",
"author": "Eggman",
"timestamp": "2010-09-26T02:41:27",
"content": "@bobI respected you before that comment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186029",
"author": "SuperSparky",
"timestamp": "2010-09-26T04:25:58",
"content": "The problem with this transmitter is it cannot be used with FM radios with a PLL digital tuner, as they require exact center frequencies to “lock on” to the signal. Since accurately tuning this transmitter is out of the question, only radios with analog tuners will be able to tune into its signal properly. I suppose there is also frequency drift to consider too.However, it is a nice old-school style FM transmitter that should work well on any old style FM radio in an area that isn’t plastered with radio stations.I live in San Diego, CA where the FM band is completely full from one end to the other, either by local, Mexican, or LA stations. Such things like this never work well here. There is no such thing as an empty spot here.I learned all this when I made my own FM transmitter years ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186052",
"author": "sean",
"timestamp": "2010-09-26T05:17:19",
"content": "Howdy. This was a great post, and the comments are also very informative…. this is the kind of stuff I like to hear. I’ll definitely be looking into this later.and @bobwas that really necessary?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186070",
"author": "sam",
"timestamp": "2010-09-26T06:49:30",
"content": "@bob way to flame and call people out, get a life.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186090",
"author": "Tachikoma",
"timestamp": "2010-09-26T09:00:30",
"content": "Jesus fucking christ people, it’s just a tiny little radio transmitter. The world is not going to cave-in from something like this. Nor will your local radio station go bankrupt. Nor will you see a mysterious “delivery” van appear in front of your house. Build it, have fun with it, move on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186091",
"author": "Gert",
"timestamp": "2010-09-26T09:02:36",
"content": "I’m going to make a couple of these go to my work and block every station i don’t like.Listening to wuss R&B music is not helping me concentrate while i’m constructing electrical closets with PLC.I just hope i won’t get busted or fined for this stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186105",
"author": "Jimbo",
"timestamp": "2010-09-26T10:29:42",
"content": "Awesome. This reminds me of the Talking Electronics (Australia) FM kits I made 20+ years ago. I broadcast the Commodore 64 Commando theme music for a radius of about 1km.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186116",
"author": "Richard",
"timestamp": "2010-09-26T12:23:59",
"content": "Another radio amateur chiming in with 2c worthThis simple but robust method of building a circuit is an ideal opportunity to learn some useful stuff.If you provide the circuit with a dummy load to avoid it transmitting while you fiddle, it’s an opportunity to experiment with component choices to see what effects they have on frequency-stability… you’ll learn more effectively that way than you will with any book.If you’ve got a frequency-counter, a scope, or both, there’s a lot of fun to be had seeing what matters and what doesn’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186156",
"author": "Gösta",
"timestamp": "2010-09-26T14:14:49",
"content": "Great stuff! I really enjoyed this project. And I love Hackaday :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186186",
"author": "draeath",
"timestamp": "2010-09-26T15:47:26",
"content": "Perhaps I’m missing something, but I was under the impression that the US Government institution, the FCC, doesn’t operate in Europe…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186229",
"author": "Whatnot",
"timestamp": "2010-09-26T17:18:06",
"content": "To make an on-topic remarkThis would have been so much cleaner(and current), if SMD parts were used, it only takes a few parts and you’ll have enough room to manually solder and you don’t have issues with the connecting wires doing their own (parasitic) thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186252",
"author": "elektrophreak",
"timestamp": "2010-09-26T18:45:23",
"content": "this was actually the first project I ever made! I remember having lots of fun with it.cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186255",
"author": "Trident",
"timestamp": "2010-09-26T18:55:21",
"content": "Jan you’re not right. This isn’t so simple as it looks.In general the low power FM transmitters are also allowed in EU. But it depends from state to state if they implemented respective european norm(EN 301 357-2) into its local law. The european norm is here quite long time so my info is that only in Belarus and Greece this low power transmitters are not allowed.As i can speak for law in Czech republic those low power FM transmitters are allowed from half of the year 2006 with max transmittedd power 50nW.It is always good to check actual state;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186266",
"author": "strider_mt2k",
"timestamp": "2010-09-26T19:15:34",
"content": "I’ve said it before and I’ll say it again:It’ll back up into the mai….I mean, I love the radio hacks!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186344",
"author": "Joe Blough",
"timestamp": "2010-09-26T21:40:07",
"content": "An FM radio transmitter?Did you say Radio?Who listens to radio any more…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186839",
"author": "illpro",
"timestamp": "2010-09-28T01:47:55",
"content": "Great project for those just learning about electronics. Simple and easy to understand what is going on in the circuit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1003192",
"author": "craig",
"timestamp": "2013-05-11T10:25:58",
"content": "Ze pows used one of these in Colditz during the war. It was idden in a french sausage and used to pass secret information to the French underground.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1676766",
"author": "Shadreck",
"timestamp": "2014-07-31T03:26:45",
"content": "An fm transmitter is quite interesting, can i also transmit a.m, mw, short-wave signals",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4337465",
"author": "Transmitter Review",
"timestamp": "2018-02-02T04:44:06",
"content": "A round of applause from my side.Great project indeed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6350701",
"author": "deepak kumar yadav",
"timestamp": "2021-05-22T07:24:11",
"content": "Well this is an old post but it is amazing for building a FM transmitter , I mean how simple the circuit looks like.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6614235",
"author": "Tom Hank",
"timestamp": "2023-03-13T09:37:52",
"content": "If you want, you can purchase a transmitter. It’s practical and simple, especially in light of the abundance of options available at affordable rates without sacrificing quality.https://windupradio.com/make-a-radio-transmitter/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.058487
|
||
https://hackaday.com/2010/09/25/laser-mic-makes-eavesdropping-remarkably-simple/
|
Laser Mic Makes Eavesdropping Remarkably Simple
|
Mike Szczys
|
[
"Laser Hacks"
] |
[
"diode",
"infrared",
"laser",
"listening",
"lm386",
"mic",
"microphone",
"spy"
] |
Here’s a surprisly simple way to
build yourself a laser-based listening device
. It consists of two modules, a transmitter and a receiver. The transmitter is a set of lasers, one is visible red for aiming, and the other is infrared for measuring the vibration of a surface. Point the transmitter at the window of the room you want to listen in on and the laser can be reflected back to the receiver. The receiver module has a phototransistor to pick up the infrared laser light, and an LM386 audio amplifier to generate the audio signal sent to a pair of headphone. The need to be well-aligned which is easy enough using a pair of tripods. Check out the demo after the break.
Looking for something to do with the leftover laser diodes from this project? Try making yourself
a laser microscope
.
[youtube=http://www.youtube.com/watch?v=h7O-xiZcOAo]
| 56
| 48
|
[
{
"comment_id": "185814",
"author": "Chris",
"timestamp": "2010-09-25T19:07:16",
"content": "Wicked, well implemented but Id be keen on seeing it on an actual window with conversation to see performance",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185816",
"author": "thatguy",
"timestamp": "2010-09-25T19:09:13",
"content": "This is straight out of spy gadgets for the evil genius… and I’m really happy that they proved the concept.Alot of FUD and disbelief surrounding the phototransisor theory.Green laser+developed 35mm film=infrared laser btw.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185820",
"author": "Charper",
"timestamp": "2010-09-25T19:16:20",
"content": "Awesome hack, really cool. Love it.Now in the down side… yeah I know… This is illegal to possess in the US.Also, I seemed to remember seeing something similar here before:http://hackaday.com/2006/03/22/laser-listening-device/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6209565",
"author": "John",
"timestamp": "2020-01-11T03:12:17",
"content": "There was an article on building one of these in, I believe, Popular Electronics, several decades ago. I have the photocopy in my files. Of course it isn’t as small and simple as the above, but the principal was the same.",
"parent_id": "185820",
"depth": 2,
"replies": [
{
"comment_id": "8175058",
"author": "Dustin Harper",
"timestamp": "2025-09-05T03:52:16",
"content": "Yes, I remember the same magazine. It’s been bugging me for years that I never completed that thing. I figured now the parts would be trivial to obtain and finally finish it. :)",
"parent_id": "6209565",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "185825",
"author": "Charper",
"timestamp": "2010-09-25T19:18:42",
"content": "Sorry… not illegal to possess, illegal to use. Again, not trying to knock it- awesome build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185828",
"author": "strider_mt2k",
"timestamp": "2010-09-25T19:21:50",
"content": "Beautiful work!I swear HAD and the supply of junk parts at work have REALLY got me energized towards a couple of different tinkery hacks.I really have to document and share.I’m sorry for slacking. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185831",
"author": "The Moogle",
"timestamp": "2010-09-25T19:29:15",
"content": "You Killed his server!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185843",
"author": "bilbao bob",
"timestamp": "2010-09-25T19:55:06",
"content": "Old. But new for anyone not into electronics circa 1969, or 1971, or 1978, or 1984, or 1992 or any of the other times this was all over the place. Listen to the bitter old guy, kids… You can do this with any light source you can bounce off a window. You don’t necessarily need a light source, but I guess that’s still spy stuff.Wanna defeat this? Close the curtains/shades and run a couple fans or white noise generators – like a radio. S/N ratio vanishes and unless your spy is a DSP demi-god, you’re safe.Let me guess – the next big breakthough will be putting microphones in pipes of varying diameters to get a high gain directional mic, or someone will realize that you can put a mini version of this built with soda straws on a directv dish and listen to people a block away…Or wait, wait – the 1960’s vintage russian passive modulation microphone bug triggered by microwave energy and found by the 1970’s in the big eagle at the state department.and… and… wait! wifi IS microwave energy…yawn! Now someone bring me a 1922 copy of popular science so I can read about flying cars again.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6461741",
"author": "jhax13",
"timestamp": "2022-04-18T12:45:27",
"content": "Well, we have flying cars now, just trying to get them commercialized and FAA approved.Go takes your meds and stop yelling at the kids on your lawn, you don’t sound anywhere near as insightful as you think",
"parent_id": "185843",
"depth": 2,
"replies": []
},
{
"comment_id": "6695528",
"author": "Bob",
"timestamp": "2023-11-02T02:58:05",
"content": "Wow, it’s like you predicted the future. 2023, they just announced that AI can use wifi to map a room. Detect how many people are in a room, their position, etc…",
"parent_id": "185843",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "185852",
"author": "grenadier",
"timestamp": "2010-09-25T19:56:38",
"content": "Wow old. I think I saw this in one of the engineer’s mini notebooks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185863",
"author": "andrew",
"timestamp": "2010-09-25T20:28:04",
"content": "@bilbao,Right on. That passive big eagle bug was in the US Embassy in Russia though, as I remember, right?http://www.spybusters.com/Great_Seal_Bug.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185866",
"author": "rasz",
"timestamp": "2010-09-25T20:45:14",
"content": "Curtain wall defeats this easily. Interestingly enough some gov buildinhgs in eastern block were build with Curtain walls.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185875",
"author": "MS3FGX",
"timestamp": "2010-09-25T21:22:05",
"content": "This is certainly a very well known concept/project, but it’s a nice looking build all the same.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185881",
"author": "Rick",
"timestamp": "2010-09-25T21:37:59",
"content": "My father was an oilfield tool company executive who traveled to the former Soviet Union on business. He and his fellow execs were sitting in their Moscow hotel playing cards and drinking vodka when he noticed a red laser dot on the curtains.“What’s that?”“Oh, don’t worry about that,” said one of the old Russia hands, “That’s just the KGB bugging us with a laser microphone.” And the game continued uninterrupted.This was about 1981.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185883",
"author": "mre",
"timestamp": "2010-09-25T21:49:17",
"content": "Search for the book “Build your own laser, phasor and ion ray guns” by robert innani. Pretty sure it was in the first edition (1983?)Also def in the mims engineers notebook.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4371328",
"author": "Kelly",
"timestamp": "2018-02-21T02:02:33",
"content": "one of my favorite books from when I was a kid……….inspirational to the right child.",
"parent_id": "185883",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "185884",
"author": "Chuckt",
"timestamp": "2010-09-25T21:51:17",
"content": "When they see the red dot on their window, they might call the police but people would beat me up for less.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185888",
"author": "Whatnot",
"timestamp": "2010-09-25T21:57:18",
"content": "Funny thing with all the talking about how old this is is that he uses a LM386, and I think that’s probably as old as the 80’s too right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185890",
"author": "mre",
"timestamp": "2010-09-25T21:59:36",
"content": "Yeah the mims cct was a 386 i believe.. would have to verify that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185891",
"author": "mre",
"timestamp": "2010-09-25T22:02:26",
"content": "I think it was a focused led, or maybe lamp. The mims cct did not use a laser. He also included cct to modulate the light with voice to make a one way communiction system as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185895",
"author": "Whatnot",
"timestamp": "2010-09-25T22:10:26",
"content": "Googled the age of the LM386 and the only age reference I found said ‘early 70’s’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185897",
"author": "ryall",
"timestamp": "2010-09-25T22:14:26",
"content": "This is why all the windows in my house have either an electric toothbrush or a vibrating dildo taped to them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185912",
"author": "therian",
"timestamp": "2010-09-25T22:42:06",
"content": "this is well know but absolutely unpractical way to spy (that the reason it is known to public). It hard to find reflection (almost impossible for IR) The air is not constant pressure and temperature so it bent and twist laser enough to make it useless for sound carrier. You will be detected soon with viable laser and for Infrared Sun is giant IR projector carrying white noise, as for night fluorescent light emit too much IR to dim any useful signal. Last but not least when was the last time you seen single layer glass window ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185941",
"author": "demod",
"timestamp": "2010-09-25T23:28:55",
"content": "No one noticed they are bouncing off a mirror attached to the speaker? There’s no way a window would give that sort source signal quality. Good for a POC, but would like to see it working on a window.I’m guessing for it to work on a window, you’d need to amplify the received signal another 1000 times?!?!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "796954",
"author": "yehar",
"timestamp": "2012-09-26T14:58:52",
"content": "I think you’re correct, the window is not going to vibrate as much, not even close. This detector is based on that the laser is aimed at the reflector at an angle and the reflected beam will then move and the movement can be detected at the edge of its spot.",
"parent_id": "185941",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "185946",
"author": "demod",
"timestamp": "2010-09-25T23:47:37",
"content": "ok.. read the whole post, and it worked eh.. who’d a thunk it :) maybe it was one of those mirror windows.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185958",
"author": "Whatnot",
"timestamp": "2010-09-26T00:21:12",
"content": "@therian if you recess the detector and add a small telescope attachment then you can get only the laser to arrive at the sensor and lasers come in a very small bandwidth so with the right filter at the receiver only the laser signal will be evaluated, as for double windows, you can just reflect off the inner one and that actually would be an advantage since external noise would be filtered out.As for your air argument, didn’t the guy just demonstrate it works? And didn’t they already use this in real operations? Not that there isn’t a distance issue, but you are too optimistic if you think you are safe from this.And as for it being known to the public, I think an amateur actually thought this up originally.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185965",
"author": "bilbao bob",
"timestamp": "2010-09-26T01:04:50",
"content": "Pretty low tech for 2010, btw.The hip kids simply focus the light from any internal light source (in the room) and record the modulated signal of the flourescents [and they ALL use florescents]… I’m leaving an important step out, said the null, but anybody with any physics knowledge can fill it in.Then you run the signal back through signal processing and get voices back out. Well, voices plus A/C plus random electrical noise plus thermal effects plus so on and so on, which is why real bugs are preferred 12 to 1 by most dentists.Just about the only thing this crappy tech gets used for these days is listening to in-vehicle conversations, which is why cracking a window… well, who needs that information anyway. You all carry microphones with you now.However, if you live somewhere people still get it on in cars, you can assemble a lot of spectacularly low quality audio porn. But really, listening to “wait, go slower”, “Ow, that really hurts” and “Did you bring condoms” and my personal favorite “Shhh, did you hear something” was interesting for about a week in 1971.Then I discovered that it’s way more fun to have a remote controlled air horn (like boaters use) and simply trigger it when the car “steams up and starts rocking”. The first IEOD (instant erectile dysfunction on demand) the world has ever seen* circa 1971 using a filter tuned to CB radios.Ah, america, how I miss you and your radio shack battery cards.* barring: crying babies, parents arriving home unexpectedly, olfactory assaults and hearing your mistress say “I got a call from your wife today, Bob.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185979",
"author": "blue carbuncle",
"timestamp": "2010-09-26T02:01:26",
"content": "bob don’t forget our rigged transcontinental communication boxes that could melt if they were sent the right frequency-preferably in a wartime. Pre-satellite it could cut a country off from the rest of the world lol.And yeah this has been in almost every spy book that Delta Press has sold. Geologic survey lasers to monitor avalanche conditions ;)The super embassy bug was built by the man himself, Theremin. Etherwaves and Espionage. Decent read. I always wanted Tesla and Theremin to team up and set the moon on fire :)Thanks for the post :) Good times…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185989",
"author": "josh",
"timestamp": "2010-09-26T02:06:33",
"content": "Most idiots I know use an iPhone. it is far easier to just remotely turn on its mic and have the phone send you the entire conversation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185991",
"author": "M4CGYV3R",
"timestamp": "2010-09-26T02:25:56",
"content": "@demodIf you look at the next of the related videos, he also bounces it off a window 150 feet away, across the street.http://www.youtube.com/watch?v=cC8VnM3VtvY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186039",
"author": "Big Boss",
"timestamp": "2010-09-26T04:42:38",
"content": "So i guess ill keep having meetings in the basement with the radio playing or the vacuum cleaner on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186084",
"author": "Nathan Zadoks",
"timestamp": "2010-09-26T08:00:39",
"content": "Shit. I was working on one of these, I was hoping to hit hackaday.. Too late =(–Nathan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186128",
"author": "abc",
"timestamp": "2010-09-26T13:25:23",
"content": "Heh. Vibrating didlo/toothbrush works well i hear. <3 burn notice.remember to watch out when working with high powered IR lasers. They can do some serious eye-damage if you aren't careful",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186157",
"author": "HackerK",
"timestamp": "2010-09-26T14:18:24",
"content": "Oh this is nothing new. I have done it back in the high school during a open house demo using He-Ne Laser, a Photoresister and LM386…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186276",
"author": "hubert",
"timestamp": "2010-09-26T19:19:41",
"content": "I know this works.But there is a better, not easier, way to decode.It depends on interference. You have to overlay the original and the reflective beam. Since the movement of the window changes the runtime of the reflective beam, you can decode the sound from this.I am searchin for plans for this kind of laser mic, but never found them again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186369",
"author": "Allen Dulles",
"timestamp": "2010-09-26T22:44:44",
"content": "Modern surveillance devices of this type use microwaves to penetrate walls. They are also immune to curtains and noise maskers as you can target the individual directly, if your beamwidth is narrow enough. You need to modulate the RF carrier with an ultrasonic modulation and extract the vibrations using lock-in amplifier. Google William McGrath.http://projects1.gbppr.org/mil/laserlhttp://projects1.gbppr.org/mil/cavityhttp://projects1.gbppr.org/mil/telcohttp://projects1.gbppr.org/mil/inter",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186444",
"author": "ladz",
"timestamp": "2010-09-27T01:49:14",
"content": "@hubertnot sure if I can post links, but here’s the old Radio Electronics article you’re talking about:http://72.52.208.92/~gbpprorg/mil/laserl/index.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186496",
"author": "M4CGYV3R",
"timestamp": "2010-09-27T04:49:07",
"content": "If you go so far as to use a fiber optic cable you can transmit audio quite clearly this way. It’s all up to the response of the phototransistor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186683",
"author": "bilbao bob",
"timestamp": "2010-09-27T20:08:00",
"content": "@Allen dulles = Excellent troll, It’s a website, but the website links do point to the original magazine articles with construction info.The last link is an amateur’s wet dream, and not going to yield pay dirt with the junk he’s using… pretty block diagrams, wrong approach.Let me say this: There is nothing you will think of in surveillance that hasn’t already been thought of, proposed, rejected, reqqritten, funded, hastily prototyped just as the money was about to run out and discarded as useless upon project cancellation – at least three times.If you can’t het the signals with two or more tunable frequencies in basically real-time to cope with breathing, gas, head shifting and other muscle distractions, it won’t work.It’s like decoding FSK data using your ears – not a chance of valid data at the speeds required.The catch with direct interrogation of the voice boxes of biologicals is that it’s useless if they’re not sitting still, you have to basically cook them to do it and the shear amount of dsp that needs to be done to try and pull text out of formants. You’re more likely to interrogate the inner ear of a participant than pull useful speech from the throat of someone. Ever hear a throat mic?High resolution strobe studies have been done with no results, and the two or three membranes that you can monitor to reproduce sound from are too small to be useful. But let’s say your method was “adequate” and you could chet the membrane and pull sound back out of it…It’s much worse than the problem of pulling text from muddy speech recordings, as we still need to “point the mic” except under lab conditions. In theory computation can do anything, but in practice it isn’t that good.Now, imagine that the user is moving in a random hotel room, and you want to do speech capture. Good luck with that, even with a decent scanning device and a static polar map of the room.Again, cellphones to the rescue here… Cellphones [and a company that shares initials with National Semiconductor who are “the keeper of the keys”] have single-handedly delivered the holy grail of surveillance to anyone with the right connections, or failing that, adequate funding.BTW, the amount of gear required to correctly sweep and monitor a room using complex heterodyned microwave signals is substantial, and isn’t gonna be available in the wild any time soon.And – MD – even microwave penetration of walls STILL relies on cell phones or a cavity bug.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186687",
"author": "bilbao bob",
"timestamp": "2010-09-27T20:13:58",
"content": "Probably time to stop posting, I’d guess, before I go full PKD on everyone.Anyway, this kind of stuff is used mostly for following breathing rates and heart-beats from a distance. You can track pulse rates pretty well with an ordinary laser. Ah, 7th grade, how I miss it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187698",
"author": "SgtGanja",
"timestamp": "2010-09-29T13:32:28",
"content": "I intend on trying this with a green stargazing laser its beam doesnt distort as much as the red laser does",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202068",
"author": "Don Hartley",
"timestamp": "2010-10-24T14:58:54",
"content": "I invented a multi-frequ adjustable audio osc.that(1)amped and applied to a speaker on a windowwould give serious competition to those reflectedlaser beams, & (2) run through phase shifters canproduce a rotating, head twisting effect on in-truders silly enough to hang around more than a few seconds. Some of the older projection TVs had an aluminized mylar mirror, not glass, that could have interesting uses for hackers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "991091",
"author": "Mikal",
"timestamp": "2013-04-09T17:59:39",
"content": "hi , can any buddy plz help me tht hw IR beam is received at the receiver end ? CZ IR is invisible and expanding in all directions so how are we gona converge it at receiver end",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1021064",
"author": "SysReboot (@SysReboot)",
"timestamp": "2013-06-30T03:31:58",
"content": "@mikal you maybe a little confused. normal IR bulbs spread out as they are incoherent light. but this is an IR Laser. laser light is a coherent, essentially a beam of photons at a specific frequency & wavelength, therefore is easy to converge. the pro kits use the red laser to aim and IR for the audio, you can then see where the beam is reflected so you can align with the receiver, then switch the red off. alternatively you can use a video camera (removing the ir filter from the sensor) to view the IR beam without needing the red laser to aim.",
"parent_id": "991091",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "1286794",
"author": "cren",
"timestamp": "2014-03-21T04:47:03",
"content": "is it possible the laser ray can be reflected back or simply out of your house",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2064404",
"author": "joe",
"timestamp": "2014-10-31T03:48:24",
"content": "Do you need to aim the laser exactly perpendicular to the window?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2364662",
"author": "mik",
"timestamp": "2015-01-19T16:42:36",
"content": "You can find an accurate selection of the best eavesdropping devices currently on the world market athttp://www.eavesdropping24.comThese devices are great for personal safety and for their own private spaces. They may also collect information crucial to our existence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2365033",
"author": "sonofthunderboanerges",
"timestamp": "2015-01-19T19:56:37",
"content": "Truth be told that USG knew of a secret method to intercept audio from old style 500 set AT&T phones for decades. After WW2 many federal agencies where unaware of it. It involved “illuminating” the carbon microphone with a ultrasonic transmitter on the wire from a few hundred feet away. The properly focused reception device would do the rest. Some of these old phones are still being used in 2015. They are banned at FBI et al.The LASER BUG was in fact invented by THEREMIN and his ex-NAZI scientists after WW2. The solid-state LASER was actually invented by NAZIS not Dr. Ted Maiman at Hughes Aircraft.Laser bugs as history would have you believe, they where a Soviet thing. They all suffer from angle of aiming is proportional to opposite angle of return (bouncing away from you). So straight-on aiming is required. But now there are optical metamaterials that allow special return angles and is totally unnoticed on the target window. The window glass prism method is too easily detected as it is too big.Ideally you can aim at interior reflective objects like wall mirror and not depend on a window. By modulating the laser beam with a ultrasonic or rf signal much interference from other sources can be avoided. By using DSP (digital signal processing) you can avoid “buzzers”. White noise is a lot harder to avoid though, but not impossible.Curtains only slightly mute the room audio but not negate it. Just need more audio amplification to overcome that.You don’t need a visible laser for aiming. There are special eyeglasses or cameras that allow this.An IR laser does NOT cause eye damage.You can detect laser bugs with cheap or toy night-vision goggles or a simple modified toy digicam. However, lasers not needed when you can use ultrasonics or microwave interrogators, they bounce off of metal objects like old fashioned burglar alarm window tape.There are other devices that can bounce off of target’s skeleton, skull, teeth, that can return spoken audio, not room audio. Not very good audio but audio nonetheless. All of these types of bugs allow audio interception without actually entering the premises under guise or breaking and entry.You can also use lower-tech shotgun mics or parabolic mics.The best bug is a store-forward type. It never transmits a signal until remotely interrogated by the bugger to download it’s stored MPEG storage. Also scheduled Wi-Fi connection/upload could be used too, It is not impervious to the NLJD detectors (microphone detectors) – just use old fashioned carbon, dynamic, or crystal mics not electrolytic. Also Faraday shield of the chassis to ground (need to block 900 Mhz at 25 watts to defeat). It requires covert placement though.If someone could invent a multi-target lip-reading robot with A.I. would be a real coup. All needed is wide-angle telescope and video camera for the robot to see target’s lips moving. If a human can do it then a robot (i.e. computer) should be able to duplicate it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2818807",
"author": "Jon A",
"timestamp": "2015-12-01T23:09:24",
"content": "I suspect a neighbor is listening to use via our windows. We have white noise generators on almost all windows along with white noise playing through a stereo system through out the yard. How can I stop them from listening ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2818976",
"author": "sonofthunderboanerges",
"timestamp": "2015-12-02T01:45:38",
"content": "Get a toy night vision scope from JAAKS. They are cheap. Sometimes on EBAY or AMAZON. Walmart used to sell them. They sell real NV goggles in Sporting Goods but are expensive. You can see the infrared laser being aimed at your windows. Also a SONY HandyCam on night vision mode will work too. Try putting your electric razor on the glass. Really makes the bugger’s day. Also double hung windows thwart laser bugs too. There is an air gap between the panes.Real fun would be to do NOTHING at all and just feed him disinformation. Set up an amazing false story and watch what he does to investigate further what you said. Like you buried $5,000 cash in a coffee can in backyard near his fence out of sight. You marked it with a flag or something. Then put a web cam on it and watch what happens. Or some variation on that theme in where he would have to reveal himself in an uncomfortable way. Think of something really creative…SQTB",
"parent_id": "2818807",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "3608238",
"author": "sonofthunderboanerges",
"timestamp": "2017-05-21T06:09:34",
"content": "https://s29.postimg.org/ru059oelz/LED-_Bulb-bug.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6334125",
"author": "ade",
"timestamp": "2021-03-24T19:25:16",
"content": "I seen these before and thought about building one for fun,However, as someone in the comments said,why do you need a laser at all,If the room is illuminated inside, the image of the window could be brought to a focal point, on to a photo transistor + Amp.Also, the aiming Red Led could be reduced in power, so it’s not even visible and even turned off once you have allignment.Great article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6664264",
"author": "Mik",
"timestamp": "2023-07-19T13:23:49",
"content": "Laser microphone system form endoacustica Europe srl. I have seen there very interesting system",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.216276
|
||
https://hackaday.com/2010/09/25/rfid-readers-writers-and-spoofers/
|
RFID Readers, Writers, And Spoofers
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"ata5567",
"reader",
"rfid",
"spoofer",
"t5557",
"tag",
"writer"
] |
[Carl] has done a lot of work developing
a collection of RFID hardware
. The two cards you see above are spoofers that can be programmed in the field using the keypad on the left, or the rather intimidating banks of DIP switches on the right. We also enjoyed his look at the Atmel T5557 and ATA5567 on-card chips used for the tags themselves. He shared the schematics for his designs but unfortunately he’s not distributing the firmware. None-the-less, if you’re interested in learning more about RFID this is a wonderful resource as it covers readers, writers, spoofer, and tags.
| 12
| 12
|
[
{
"comment_id": "185834",
"author": "Chris",
"timestamp": "2010-09-25T19:32:59",
"content": "What an interesting design and hack. I now want to have a go, primarily to work out which RFID tags actually use this chip. Congrats!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185869",
"author": "F.",
"timestamp": "2010-09-25T20:50:27",
"content": "“Rather intimidating banks of DIP switches”? You’ve never configured an old dot matrix printer…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185943",
"author": "Dave",
"timestamp": "2010-09-25T23:39:03",
"content": "That large number of switches seems intimidating unless you have a conversion chart. An earlier thread on the RFID Proxmark forum had a link to the following chart which shows an example of how the 44-bits in a HID access card will map into the T5567 read/write card registers. The information is also applicable to setting up the DIP switches on a spoofer like the one shown.http://www.proxclone.com/pdfs/HID_format_example.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186002",
"author": "terribledamage",
"timestamp": "2010-09-26T02:54:08",
"content": "Still not an RFID sniffer. Build a device which able to copy RFID cards in seconds.Eg.: you put near to a hotelroom rfid card then it downloads it to its memory and then after u set a switch and put another card near to it, it writes it out.Since RFID has no security by designs it should be an easy task. Kinda stupid that hotels started using it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186008",
"author": "Addidis",
"timestamp": "2010-09-26T03:17:55",
"content": "It makes me sad when firmware isnt posted. I would make a section for stingy bastards who dont post code :) And then the normal HAD for people who are cool and post code.Perhaps im being harsh?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186060",
"author": "Ken",
"timestamp": "2010-09-26T05:38:54",
"content": "Ah, the venerable SX-28.Don’t see many of those around nowadays, especially since Parallax pulled the plug.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186127",
"author": "abc",
"timestamp": "2010-09-26T13:23:19",
"content": "Yayyyy. Fun hax. Why no Firmware? ;__;",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186366",
"author": "Thibow",
"timestamp": "2010-09-26T22:28:36",
"content": "I want a firmware :'(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187151",
"author": "UltraMagnus",
"timestamp": "2010-09-28T08:31:55",
"content": "this post is pointless without firmware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "345884",
"author": "KC",
"timestamp": "2011-03-02T02:58:57",
"content": "Dude….. come on…. post the firmware!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "632599",
"author": "hacker007",
"timestamp": "2012-04-19T06:43:41",
"content": "I want to have one, It is very interesting, how to build one or buy one?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "991179",
"author": "Mnbadger",
"timestamp": "2013-04-09T22:14:29",
"content": "Has anyone usedhttp://www.clonemykey.com?Can I do this myself cheaper?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.863618
|
||
https://hackaday.com/2010/09/25/tokyo-hackerspace-akihabara-station-video-tour/
|
Tokyo Hackerspace – Akihabara Station Video Tour
|
James Munns
|
[
"Hackerspaces"
] |
[
"hackerspace",
"japan",
"parts",
"tokyo"
] |
This is the kind of footage that
makes our mouths water
here at Hackaday. [Akiba] of
Freaklabs
has been kind enough to take us all on a video tour of Akihabara Station, a treasure trove for electronics hackers located in the Chiyoda ward of Tokyo. The highlight includes surplus stores, specialty electronics shops, and enough silicon to bring an engineer to tears. Rather than waste time reading about it, follow the link and check out the videos in stunning 720p.
Hackers in other parts of the world, what kind of stores and marketplaces do you have like this? Send us your
pictures and videos
of local marketplaces that cater to your hacking needs so we can show them off.
| 32
| 32
|
[
{
"comment_id": "185756",
"author": "skydiver",
"timestamp": "2010-09-25T17:27:03",
"content": "AWESOME!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185766",
"author": "rasz",
"timestamp": "2010-09-25T17:46:56",
"content": "We have similar thing in Warsaw Poland, its called Wolumen, about 200 small electronic shops open air market on weekends.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185775",
"author": "therian",
"timestamp": "2010-09-25T18:04:04",
"content": "shame on US",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185776",
"author": "Trc202",
"timestamp": "2010-09-25T18:04:35",
"content": "and I thought I was doing good simply to have a radio-shack in driving distance… (just found another reason to go to Japan)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185805",
"author": "Phil Fitzgerald",
"timestamp": "2010-09-25T18:54:18",
"content": "Akiba, you dont happen to do tours do you, wouldnt mind checking it out next time Im over. Im pretty sure it was only a few stops from Shinjuku(what a station).You’ll need to direct me to the shops, missed pretty much all the good ones thanks to the camera/gps/binocular shops.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185854",
"author": "Deco55",
"timestamp": "2010-09-25T19:58:08",
"content": "Does someone know of a place similar to this in Los Angeles, CA??I know you can order anything online these days, but I still prefer to go out and physically buy parts when I can.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185864",
"author": "Thomas",
"timestamp": "2010-09-25T20:32:44",
"content": "I need to go to Japan. URGENT!Best regards from Germany",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185871",
"author": "tayken",
"timestamp": "2010-09-25T21:03:57",
"content": "Proud to be a THS member :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185885",
"author": "MS3FGX",
"timestamp": "2010-09-25T21:52:15",
"content": "Absolutely incredible. It is like the stereotypical “hackers den” that movies tend to fantasize about.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185887",
"author": "mre",
"timestamp": "2010-09-25T21:56:51",
"content": "Akihabra has everything… sooo much better than mail order.(Ths member btw)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185894",
"author": "Maave",
"timestamp": "2010-09-25T22:08:07",
"content": "I just found out that there’s one in my area. I’m totally heading out there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185911",
"author": "cantido",
"timestamp": "2010-09-25T22:41:49",
"content": "@mreMmm not sure about that.. the impression I got is there is basically it’s one long street with everything of interest i.e. Akizukidenshi, the various arcade PCB shops, retro games shops like Super Potato etc hanging off at side roads and not all that much else. Sure there’s lots of computer shops etc but most of it is pretty expensive and you can’t go into a shop without some made up blonde guy coming over and trying to sell you stuff. There are the places dotted around that have every single connector or fitting you could ever want.. Try getting a single Hirose FX2 connector in the street anywhere else in the world.. but unless you go out with something to buy in mind the piles and piles of stuff on sale is just going to be confusing. Akizukidenshi has most of the stuff a hobby hacker could ever want and they do online ordering,.. and if you don’t have a Japanese bank account you can pay C.O.D. I used to order stuff and have it sitting on my desk in Hakodate in about 2 days. Other stuff you can order via chip1stop.As for the hackerspace.. nice, but there doesn’t seem to be a huge assortment of tools or anything. The biggest thing available seems to be a drill.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185950",
"author": "Akiba",
"timestamp": "2010-09-25T23:51:22",
"content": "@cantido While Akizuki can take care of many things they still can’t match the overall diversity of Akihabara as a whole. The electronics component shops are definitely not all on one street. That’s the whole reason the video was made. Otherwise, we could just point people to some street and tell them to walk down it. The shops are scattered all over the place and many are hidden away on the upper floors of plain looking buildings.As for your comment on the hackerspace, I think you’re missing the point. The point of a hackerspace is a gathering area for people that want to make things and do stuff. The tools are just to facilitate that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185953",
"author": "Jonam",
"timestamp": "2010-09-26T00:04:15",
"content": "I went to Akihabara (after work) five years ago while on assignment in Tokyo. Though I agree with cantido’s comments that it consists mainly of computer shops with pushy salesmen, the interesting thing I noticed was that those few shops that catered to the hobbyist were packed with customers, ranging from schoolboys to middle-aged salarymen.I inferred from this that there was still great interest in electronics and being creative in Japan. Don’t know what the state of the electronics hobbyist industry is in other countries but here in Australia, it has almost died. Comparing to Akihabara, as an example, there used to be four stores in Sydney that were next to each other in the same street in the CBD that sold components and competed fiercely with each other. Now there is one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185957",
"author": "John (Vancouver, Canada)",
"timestamp": "2010-09-26T00:11:14",
"content": "OMFG. I need to go to akihabara.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185990",
"author": "cantido",
"timestamp": "2010-09-26T02:18:15",
"content": "@AkibaYes, there are hidden gems in Akihabara (note I did say “dotted around”).. for instance if you want really cheap arcade games go and look for Try.. it’s near the Kebab place, basically unmarked and the door is almost always closed as to give the impression that they have shutdown or something. But it’s not some sprawling massive electronics utopia that everyone seems to make out.. anyhow, my comment was mostly about mre’s suggestion that Akihabara is better than mail-order(I guess that includes online); I would strongly disagree with that. If you have something you need, like some specific edge connector or some specific fitting you can probably get it that day by going to Akihabara and stiffing through boxes and boxes of stuff. You’ll probably walk out with the thing you wanted and ten other things you bought because you liked the look of them… Alternatively if you can read enough katakana to work out that maikon = microcontroller you can sit at home and order then parts you want quite easily.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185993",
"author": "Limey",
"timestamp": "2010-09-26T02:34:57",
"content": "Wow, just wow. Now if only I could live anywere near one of those shops I would be happy for the rest of my life, It’s so hard to find decent electronics places like those in the UK :(.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185996",
"author": "cantido",
"timestamp": "2010-09-26T02:41:44",
"content": "@Jonam>I inferred from this that there was>still great interest in electronics>and being creative in Japan.I wouldn’t say the level of interest is any higher than anywhere else in the world. Japanese hackers are fortunate that they have lots of homegrown technology..You can go to a book shop almost anywhere in Japan and pick up books about the Hitachi/Renesas H8 microcontrollers for example. Never seen anyone actually pick one of those books up though.>Don’t know what the state of the>electronics hobbyist industryThe same as everywhere else? Like homebrewing beer or CB radio making stuff yourself isn’t in fashion anymore so there aren’t going to be shops catering for it. Maybe bookshops will be gone in a few years?>Comparing to Akihabara,I think Akihabara is just a little bit special. It’s in Tokyo and it’s famous. That’s probably enough to keep the shops there going.. like everywhere else in the world those shops are selling stuff over the internet as well now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186001",
"author": "cantido",
"timestamp": "2010-09-26T02:53:49",
"content": "@LimeyYou can still go and get a range of components at Maplin you realise? If you’re not afraid of the internet there are plenty of hobbyist electronics suppliers in the UK. Bitsbox.co.uk and littlediode.com come to mind. You don’t have to be a business to order stuff from Farnell either if there is something you really really need. Oh, doesn’t Rapid have a pretty wide selection too? I think both Rapid and Farnell will allow you to go and collect your orders if you really want./me guesses some people don’t look hard enough",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186004",
"author": "Limey",
"timestamp": "2010-09-26T03:11:50",
"content": "@cantidoYeah, I buy my stuff from Maplins and Rapid online at the moment, but didnt know about Farnell, will have to check that out. I mean whenever I go instore they always seem to never stock any particular components such as transistors or diodes by value, only in really small assorted bags of random components, and its even like that at their larger stores it really bugs me :/ .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186010",
"author": "R",
"timestamp": "2010-09-26T03:27:56",
"content": "Does anyone know of similar shops in the Kyoto or Osaka areas?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186045",
"author": "Akiba",
"timestamp": "2010-09-26T05:01:31",
"content": "@cantido I agree. Everyone has something they’re interested in and you can see that by the large explosion of hackerspaces in the world, the popularity of Make Magazine, Maker faires, and the hacker conferences. DIY is making a huge push forward into the mainstream these days.And actually, I agree that mail order is fine and I buy a lot through Digikey, Mouser, Akizuki, and Marutsu. But being able to physically handle things like enclosures, switches, and cables still can’t be beat. Mechanical things are so hard to judge from a datasheet since there’s soft details like tactile feel, surface finish, etc. And of course, there’s also the idea that you can have an idea in the morning, pick up all the parts, and have a complete project by night :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186073",
"author": "moof",
"timestamp": "2010-09-26T06:58:18",
"content": "The big value of Akihabara isn’t that they have the biggest supply of components and whatnot, but that you can come across all sorts of obscure stuff, and that you can play with it in person. If you know exactly what you want, it’s far easier (and often cheaper) to use Digikey or whatever.The other thing to keep in mind is that most of the stores are _tiny_, and what you see is what you get – they don’t have boxes of other stuff in a back room somewhere.@R: Den-Den Town/Nipponbashi is the Osaka parallel of Akihabara; it doesn’t have quite as much in the way of electrical supplies as Akiba, however. (It does have about as many comic stores, though.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186076",
"author": "torwarg",
"timestamp": "2010-09-26T07:17:24",
"content": "I was there last year :)The point is as long as you can’t read Japanese you might be doomed. There are hundreds of small shops hidden somewhere. If you walk simply down the main streets you might just get the impression of a place with overpriced computer shops. These shops with all there lights and ads are mostly tourist traps.If you are a baka gaijin (stupid foreigner) and you like to visit the good places …. find some Japanese buddy to guide you. As said already many shops are very small, located in the upper floors without much or any signs from outside.If you enter a shop with a pushy salesman leave it, it is not worse to buy there and mostly they will fool you.Tokio has some hackerspaces…. maybe from there websites you can create contact to find a local guide. Guess they highly welcome Gaijin hackers around the world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186081",
"author": "mrb",
"timestamp": "2010-09-26T07:49:28",
"content": "In Paris, France there is Montgallet: a similar area with ~50 computer/electronics shops.I have been to both Montgallet and Akihabara, and damn I wish there was something similar in Los Angeles for when I need something *right in the moment*.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186113",
"author": "Dheath",
"timestamp": "2010-09-26T11:56:45",
"content": "@R Osaka has a looooong street(s) that is called “Den den town” and Kyoto has something similar to the Osakas one but I just cant remember the name.But Akihabara is just The Akihabara.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186131",
"author": "abc",
"timestamp": "2010-09-26T13:38:04",
"content": "Australia = FailMakes me want to cry.However, why dont we see heaps of hacks coming out of Japan? Is it just the language barrier? HAD, Get some translators if thats the case!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186339",
"author": "Incudie",
"timestamp": "2010-09-26T21:21:53",
"content": "Hehe I was *JUST* there. Since the yen to dollar is so shitty, there aren’t really too many amazing deals but it’s still really nice to just hop on JR line and grab the part you need for a project instead of waiting on Mouser. Super fun to wonder around though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186382",
"author": "Jonam",
"timestamp": "2010-09-26T23:18:34",
"content": "@ cantido> I think Akihabara is just a little bit special.I agree. Maybe I should have been clearer, I was simply trying to say that my impression of going around Akihabara was that there appeared to be more activity in hobby electronics and in a wider age group than is the case here in Australia.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186455",
"author": "Miguel Mateo",
"timestamp": "2010-09-27T02:30:43",
"content": "I live in Japan (I am not Japanese) and I work really close to Akihabara. Akihabara is stretched over 10×10 blocks, full of shops of anything you can think off. The junk shops are really cool for people like us.I can pass by anytime and film/picture whatever you want and send it directly to you to post. Buying is not advisable now, since 1 USD is barely 85 yen when typically is 110 yen; so things here are quite expensive for foreigners now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "190586",
"author": "R4",
"timestamp": "2010-10-04T13:28:38",
"content": "Oh how I would live to spend just a couple of hours in there. It would be absolutely amazing!!! One day I will go to japan and that will be the very first stop, forget lame tourist attractions, that place is THE tourist attraction for hardware geeks like me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "532240",
"author": "JJones",
"timestamp": "2011-12-11T12:25:40",
"content": "I’ve traveled a bit and in my experience nothing matches Akihabura…Some that came close or were surprising include Silicon Valley( too spread out), Chennai(surprise), Mumbai(scam central), Barcelona(surprise), Bangkok(just a few big stores), Kuala Lumpur ( great! ), Hong Kong (used to be much better), Singapore(OK), Beijing( hugely disappointing – 100’s of stores with the same distributor!?!? ), Moscow(not so great), Warsaw (Ok but it looks like I missed the weekend market), Berlin(expected better – missed it?), Hannover (just got to Cebit – no time to wander otherwise) etc etc… maybe I’ve missed some.. I wasn’t in geek mode for all my travels (but almost).I think I want to move to Tokyo! Canada/USA sucks for hobby tech markets.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.989388
|
||
https://hackaday.com/2010/09/25/ps3-jailbreak-now-in-apple-flavor/
|
PS3 Jailbreak – Now In Apple Flavor!
|
James Munns
|
[
"ipod hacks",
"Playstation Hacks"
] |
[
"ipod",
"jailbreak",
"playstation",
"ps3",
"psgroove",
"Rockbox"
] |
The newest member of the PS3 jailbreaking tool crowd is the
iPod family
. More specifically, iPods running the open source media firmware
Rockbox
. Even better news, theoretically it should be possible to use this same method on any MP3 player running the Rockbox software. Right now the exploit package only works on select generations of the iPod Nano and iPod Classic line, but if the trend set by the PSX-scene forums continues, it would be worth checking back in the near future if your device is not already supported. Thanks to [shuffle2] for providing the hack, and [DanAdamKOF] for the heads up.
If Apple isn’t your device of choice, you can also check out
some
of your
other
jailbreaking
options
.
| 23
| 23
|
[
{
"comment_id": "185631",
"author": "BenJ",
"timestamp": "2010-09-25T14:21:28",
"content": "Alright, so first it was an expensive dongle. Then it was a cheap USBTiny. Then the Ti 84 that quite a few people have, now a popular electronic device that lots of people have.What next? PS3 jailbreak with a microwave?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185634",
"author": "_n3o_",
"timestamp": "2010-09-25T14:24:09",
"content": "next is the ps3 jailbreak using the sixaxis ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185646",
"author": "Josh",
"timestamp": "2010-09-25T14:39:40",
"content": "They also have this ps3 hack for a bunch of android phones and a palm phone if im not mistaken, as well as the arduino duemillanove. Get with the program hackaday this article is like a week old! And n3o is right, ps3-hacks.com has been putting all this stuff up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185648",
"author": "Shadyman",
"timestamp": "2010-09-25T14:41:53",
"content": "@_n3o_: Up, Up, Down, Down, Left, Right, Left, Right, B, A?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185652",
"author": "asdfghjkl",
"timestamp": "2010-09-25T14:43:58",
"content": "_n3o_:http://www.ps3-hacks.com/2010/09/25/video-ps3-hacked-with-psgroove-for-sixaxis/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185660",
"author": "jjrh",
"timestamp": "2010-09-25T14:55:26",
"content": "It’s really quite impressive how fast the ps3 hacks are coming out. People are really going to town.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185663",
"author": "fluidic",
"timestamp": "2010-09-25T14:59:50",
"content": "@BenJThe Teensy isn’t an expensive dongle…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185668",
"author": "Nicko01",
"timestamp": "2010-09-25T15:15:19",
"content": "@fluidicI think what BenJ was referring to was the original modchip that was about 150 USD.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185673",
"author": "NatureTM",
"timestamp": "2010-09-25T15:26:25",
"content": "I ordered parts for this about a week ago. I guess I won’t be needing them…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185686",
"author": "biozz",
"timestamp": "2010-09-25T15:44:10",
"content": "hahaha can we seriously rub this in Sony’s face any more XDi say yeslets tryyyyhttp://hackaday.com/2010/09/18/usb-host-comes-to-zipit/http://hackaday.com/2010/06/08/nexus-one-as-usb-host/http://hackaday.com/2010/04/05/usb-host-for-propeller-micros/http://hackaday.com/2010/02/10/usb-host-mode-for-droid/http://hackaday.com/2009/11/21/review-mbed-nxp-lpc1768-microcontroller/http://hackaday.com/2009/10/22/driving-usb-peripherals-with-arduino/… FUCK lets dohttp://hackaday.com/2010/09/02/spy-video-trakr-software-and-first-hack/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185759",
"author": "mick",
"timestamp": "2010-09-25T17:33:15",
"content": "aurduinohttp://www.ps3-hacks.com/forums/viewtopic.php?id=9325",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185760",
"author": "mick",
"timestamp": "2010-09-25T17:33:40",
"content": "*arduino",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185773",
"author": "rick rude",
"timestamp": "2010-09-25T17:57:42",
"content": "with this release, the amount of devices usable to hack a ps3 now probly out number ps3s themselves. good work fella’s",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185774",
"author": "krazykit",
"timestamp": "2010-09-25T18:03:42",
"content": "remember: don’t ask for the rockbox folks for support. this is an unsupported patch and NOT in the main build of rockbox.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185780",
"author": "jamieriddles",
"timestamp": "2010-09-25T18:11:17",
"content": "This is so epically awesome! Sony’s getting ridiculed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185784",
"author": "w0rl4ck",
"timestamp": "2010-09-25T18:14:59",
"content": "remote exploit via JavaScript. then cfw = done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185799",
"author": "Tom",
"timestamp": "2010-09-25T18:40:53",
"content": "Does this mean people will sell their AT90USBKey again? I need one, and not for PS3 hacking…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185878",
"author": "David Dembroski",
"timestamp": "2010-09-25T21:23:48",
"content": "CORRECTION. This does NOT work with the ipod classic but the ipod video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186072",
"author": "DanAdamKOF",
"timestamp": "2010-09-26T06:55:26",
"content": "@Josh, This was ported to the iPod on the 24th, how is this a week old? How dare you insult my submission (joking).BTW I would like to see a WRT router use some hardcore bitbanging and become the next jailbreak device :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186080",
"author": "xorpunk",
"timestamp": "2010-09-26T07:30:15",
"content": "FW 3.50 kills the buffer overflow in the descriptor this uses. Luckily SCE has ported code for most of the stuff in the XMB full of exploitable memory corruptions and there is no page protection.This is just a bunch of leeches altering other peoples work though and not trying to use it for anything but piracy. Probably why people with talent couldnt care less about game consoles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186095",
"author": "projectbluebook",
"timestamp": "2010-09-26T09:39:48",
"content": "haha, now port the code to a PIC 12F683 for ultimate pwnage potential…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186451",
"author": "mike",
"timestamp": "2010-09-27T02:17:24",
"content": "this works with sansa c200,c230,c240,c250,e200 etc. v1 model mp3 playersone listed at 21.00$ shipped is cheapest solution besides building one from scratch and pic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "311406",
"author": "Blink310",
"timestamp": "2011-01-21T23:16:53",
"content": "Hi I’m interested in USB jailbreakingI have an itouch 3rd gen it’s jailbrokenWhat I would like to know if I would be able to use the terminal or any kind of way (noob)ex. Itouch as USB mass storage ps3 = jailbreak",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.812164
|
||
https://hackaday.com/2010/09/24/unmanned-ocean-crossing/
|
Unmanned Ocean Crossing
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"gps",
"gumstix",
"iridium",
"pic",
"sail",
"sailboat",
"spot",
"tiller pilot"
] |
This is the Pinta,
an autonomous sailboat built to attempt an ocean crossing
from Ireland to Martinique (in the Caribbean). A group of researchers at Aberystwyth University built her as part of
the Microtransat Challenge
.
To keep tabs on the vessel her creators included an Iridium short burst data modem with a backup system made from a SPOT satellite tracker using a PIC microcontroller to trigger a transmission every six hours. The sailing systems are a conglomeration of a Gumstix board, GPS, a windshield wiper motor to control the sail, and
a tiller pilot
for steering. A set of solar panels helps to top off the lead-acid batteries that power the system.
Unfortunately the old gal has encountered problems. You can see from the
tracking data
that, although it sailed 500 km in the last twelve days, she is still just off the coast of Ireland. The primary tracking system has failed, which could signal a system-wide computer failure. We hope the team will eventually recover the vessel as we’re interested in finding out what caused this unfortunate turn of events.
| 24
| 24
|
[
{
"comment_id": "185257",
"author": "spiritplumber",
"timestamp": "2010-09-24T19:08:17",
"content": "Wow that takes me backhttp://www.youtube.com/watch?v=AIbPvxf3hrkI hope they do better than I did at the time!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185259",
"author": "Anonymous Coward",
"timestamp": "2010-09-24T19:08:53",
"content": "Keep in mind that the SPOT device may not work well in the middle of the Atlantic, I know from working with similar devices. The Globalstar simplex network requires a nearby groundstation. So keep hope!http://www.globalstar.com/en/satellite/simplex_coverage.php",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185261",
"author": "Dave Orchard",
"timestamp": "2010-09-24T19:14:13",
"content": "Amazing project. Makes me proud to say that i went to Aberystwyth University. Nice one boys :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185268",
"author": "goldscott",
"timestamp": "2010-09-24T19:31:38",
"content": "As a sailor, I’m really inspired to make an autonomous sailboat now. I’ll work on it this winter and have it ready for spring.First goal: sail across Lake Michigan. Second goal: Transat. Third goal: Round the World.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185284",
"author": "jeditalian",
"timestamp": "2010-09-24T20:10:00",
"content": "Automakers and energy storage startups are racing to create a lightweight battery that won’t interfere with a car’s all-electric range or design, and lead is one of the heaviest elements known to science. It’s not an obvious choice. so really.. why they using lead acid batteries?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185286",
"author": "Oren Beck",
"timestamp": "2010-09-24T20:14:28",
"content": "Redundancy and design for “graceful degradation” tends to determine survivability of unmanned systems. It seems simplistic to presume that redundancies can compensate for unmanned situations. Or can they? In many cases- it’s more about how graceful those fail recovery designs can become at mitigating whatever chance throws at them.If a single failed component can kill a mission-perhaps that design needs review. Yes, there are practical limits to even the best designs we can create- but increasingly fewer of them are affected by things other than price or dimensional constraints.Getting a boat to do what this one has done is still a non-trivial set of things.Replication of critical systems only “works” if a failed system can be kept from impacting the mission itself. As in the Mars Rovers where drag from a failed motor became a major impairment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185293",
"author": "Ben",
"timestamp": "2010-09-24T20:46:28",
"content": "@jeditalianDepending on their design, they may have chosen lead acid batteries because their weight makes a good ballast, which can enhance stability. Plus their cost per Wh is very low.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185294",
"author": "charper",
"timestamp": "2010-09-24T20:49:14",
"content": "A little off topic here, but can somebody explain the rationale of microtransat’s time penalty?The effective time for the transatlantic competition (penalty included) is the real time * sqrt(4)/sqrt(length in meters). With 4m being the maximum length allowed. So basically a short (1m) boat suffers a 100% penalty (double time)?!?!Wouldn’t the smaller boat start off at a disadvantage anyway? I’d assume a very short boat would have more trouble navigating the rough seas and do worse to begin with than a larger boat. What am I missing here?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185295",
"author": "charper",
"timestamp": "2010-09-24T20:51:15",
"content": "Gah… should have provided a link tothe microtransat rules. Sorry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185305",
"author": "xorpunk",
"timestamp": "2010-09-24T21:11:50",
"content": "seen this before, cant wait to see how it handles stormy surges in the atlantic without expensive gear or human intervention XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185334",
"author": "cknopp",
"timestamp": "2010-09-24T23:14:33",
"content": "Meet the new smuggling device for cocaine manufacturers in Columbia.Now if it only had the ability to detect and avoid other vessels, and not have a sail…It would be almost impossible to know where it is going to land unless you were given the coordinates before hand…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185358",
"author": "ss",
"timestamp": "2010-09-25T00:36:28",
"content": "@cknoppHey, dumb-ass. First, learn to spell correctly and learn your geography. It is Colombia. Second, lame joke. Third, they may manufacture it here, but bone-heads like you consume it here. Fourth, Mexico is #1 long time ago, Colombia is not.Now, to the project itself, it is pretty cool. :) Good luck with it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185360",
"author": "sqnewton",
"timestamp": "2010-09-25T00:41:28",
"content": "@cknopp, dumb-asses like you need to learn more.. First, learn to spell correctly and learn your geography. It is Colombia. Second, lame joke. Third, they may manufacture it there, but bone-heads like you consume it here. Fourth, Mexico is #1 long time ago, Colombia is not. Do your homework.Now, to the project itself, it is pretty cool. :) Good luck with it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185374",
"author": "ChalkBored",
"timestamp": "2010-09-25T01:28:36",
"content": "@charperit’s time * sqrt(length) / sqrt(4)not time * sqrt(4) / sqrt(length)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185416",
"author": "localroger",
"timestamp": "2010-09-25T03:00:41",
"content": "@sqnewton maybe you should do your own homework. Colombia is still a big source for C and “semisubmersibles” have been a big delivery vector — near submarines that can’t quite submerge but stay very low in the water; if they’re intercepted the crew ditches and gets rescued according to the Law of the Sea, with the evidence on the bottom of the Gulf of Mexico. A crewless craft of that type would be a forward step for the smugglers, since the authorities are thinking of classing unflagged semisubmersibles as being some kind of special class of unlawful so their crews can be prosecuted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185436",
"author": "xorpunk",
"timestamp": "2010-09-25T05:21:49",
"content": "At most authorities could get transmission coordinates from satcom..I like how it was pointed out that only because america is full of mindless consumers that the drug trade is prosperus in the first place. The entertainment industry there demand “C” and has hundreds of millions to contribute thanks to a economy that is based around class warfare on a social and financial level.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185600",
"author": "localroger",
"timestamp": "2010-09-25T13:02:57",
"content": "Actually, the drug trade isn’t lucrative enough to fund the development of special delivery boats because consumers exist, it’s that lucrative because the damn drugs are illegal and artificial scarcity makes them crazy expensive. Most recreational drugs would be pretty cheap if anybody could grow and distribute them without the risk of prosecution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185690",
"author": "mangler",
"timestamp": "2010-09-25T15:50:57",
"content": "And what if it turns around on the water or the sail breaks down then it fucked.On the video it wasnt clear to me what they pushing in that loads of paste for just on top of the wires.This whole things seems to be a terrible design.How much money did u waste on it?10K EURO on solar cells1K EU/month for iridum access….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185694",
"author": "Brad",
"timestamp": "2010-09-25T15:56:41",
"content": "@manglerIf you’re just sending short telemetry packets, iridium can be really, really cheap. In the US, prices start at $20-$40 per month for the first 12Kb of data, followed by $1.50 per Kb after that.The problem for applications like this is that the radios cost $400-$1000 each :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185721",
"author": "barryfzr",
"timestamp": "2010-09-25T16:18:38",
"content": "I’m biased.. but we should’ve sent one of our MOOPS…..http://www.facebook.com/#!/group.php?gid=110062036719&ref=ts",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185771",
"author": "Tom",
"timestamp": "2010-09-25T17:49:30",
"content": "“This whole things seems to be a terrible design.How much money did u waste on it?10K EURO on solar cells1K EU/month for iridum access”To be honest we actually wanted rid of the thing, it had been sat in the lab doing nothing for years so we figured it would be worth trying to get her to do something.You’re right the design isn’t fantastic but it’s a pretty old lash-up, we work with much better boats now.As for cost the panels are nothing like 10K euro and the iridium costs were worked out to be a few hundred dollars for about 3 months worth of data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185874",
"author": "Charper",
"timestamp": "2010-09-25T21:17:47",
"content": "@ChalkboredWow, thanks… I must be getting dyslexic or something, I swear I read that the opposite way 10 times.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185919",
"author": "Colin",
"timestamp": "2010-09-25T22:54:18",
"content": "@charperI’m the admin for the microtransat site. When I saw your posted I checked the formula and realised it was wrong and have since corrected it. I had found this mistake ages ago and thought it was fixed but either I hadn’t saved it or it crept back in somehow.The idea is to compensate for hull length (smaller hulls limit speed) by effectively giving smaller boats faster times.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186418",
"author": "stib",
"timestamp": "2010-09-27T00:30:21",
"content": ">To be honest we actually wanted rid of the thing, it had been sat in the lab doing nothing for years so we figured it would be worth trying to get her to do something.Ha! so it was a coffin ship!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,369.917421
|
||
https://hackaday.com/2010/09/24/gutting-an-air-freshener-for-the-parts/
|
Gutting An Air Freshener For The Parts
|
Mike Szczys
|
[
"home hacks"
] |
[
"air freshener",
"air wick",
"freshmatic",
"i-motion",
"led",
"parts",
"pir",
"pnp",
"transistor"
] |
[Doug Paradis] took
a good look inside the Air Wick Freshmatic Compact i-Motion
and then stole all the parts for other projects. We’ve looked at
adding a manual spray button
or
making air fresheners Internet enabled
before. Those models didn’t have parts that were all that interesting, but this one has a passive infrared motion sensor. You’ll also gain three switches, a PNP transistor, and an LED.
Price seems to be all over the map for this model, but [Doug] says you can find it for $8 or less. After showing how to make a tool to bypass the triangular security screws, he explains how to access the PIR sensor. But if you want to be all you can be with the hardware, he details the modifications needed to patch into the analog and digital circuitry on the rest of the board too.
| 40
| 39
|
[
{
"comment_id": "185240",
"author": "girrrrrrr2",
"timestamp": "2010-09-24T18:34:09",
"content": "The other day I cut the bottom out of one, now it can spray any type of air freshener, you just have to duct tape it in…If there is enough interest I can do a write up…but its pretty simple lol…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185243",
"author": "Stephen Zuercher",
"timestamp": "2010-09-24T18:37:58",
"content": "Cool. I wonder what kind of distance he was able to get with it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185247",
"author": "jeditalian",
"timestamp": "2010-09-24T18:45:50",
"content": "build into steering wheel as chloroform antitheft device? or modify it to MACE people who open your laptop/safe/liquor cabinet/ whatever without proper fingerprint identification",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185249",
"author": "jeditalian",
"timestamp": "2010-09-24T18:53:46",
"content": "that cartridge looks the same form factor as a butane canister. add a spark gap and you’re set.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6424394",
"author": "logan gray",
"timestamp": "2022-02-11T19:50:49",
"content": "Actually yes, this will work I have done it with an arc lighter for an ignition source. More fun is the Spiderman web shooter has a cap that depresses the plunger on the silly string can, but it also fits a butane canister.",
"parent_id": "185249",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "185255",
"author": "Dan Fruzzetti",
"timestamp": "2010-09-24T19:00:34",
"content": "Triangular security screws can be easily beaten by just the right width flathead screwdriver and a little extra pressure.Or, if you have a flathead screwdriver with a broken tip, flatten out the tip and use that. The broad section of a flathead screwdriver seems to lodge in there best.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185267",
"author": "Erik Johnson",
"timestamp": "2010-09-24T19:29:37",
"content": "@jeditalian LOL I actually popped in here to post that exact project (not mine). Here:http://bigclive.com/flame.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185297",
"author": "Jesse",
"timestamp": "2010-09-24T20:51:45",
"content": "In my experience, hex drivers are all that are needed for removing triangular security screws. I’ve even seen security hex drivers that have a hole in the center, should the screw have a pin in the center of the triangular hole.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185308",
"author": "Osgeld",
"timestamp": "2010-09-24T21:18:26",
"content": "I use a triangular jeweller’s file also works ok on Y head screws",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185309",
"author": "wouter",
"timestamp": "2010-09-24T21:26:34",
"content": "lol at the flamethrower.. :p why doesn’t had have like buttons :pI like this project a lot, it’s so easy to find an air freshener like that. I don’t have a clue where i could use the flamethrower but I’m will find a project for that :pDid I hear someone say rc hot air balloon?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185316",
"author": "Grazz256",
"timestamp": "2010-09-24T22:17:39",
"content": "Flame thrower would make a great security device!Security screws are easy to bypass, I just use a drill. Slightly larger then the size of the bit usually works.Alternately you could just buy a set of security bits, most contractor suppliers will have them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185322",
"author": "Captain Matt",
"timestamp": "2010-09-24T22:42:15",
"content": "Would make for an excellent prank just be swapping the freshener out for a can of Silly String, although that might just be the UK name for it, the synthetic foam ‘string’ in an aerosol for parties.Hide it up somewhere and whoever walks past, gets a nice covering.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185333",
"author": "Maroc",
"timestamp": "2010-09-24T23:11:55",
"content": "I did this about a month ago for my airsoft Claymore project in conjunction with a wireless doorbell, wished that the board was smaller but lift happens. By the way there is also a push solenoid that activates the air freshener canister haven’t quite figured out how I use that yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185337",
"author": "Myrph",
"timestamp": "2010-09-24T23:21:25",
"content": "@jeditalian That laptop/Mace idea sounds amusing! Replace the built in camera with the spray nozzle, secrete the rest of the gubbins elsewhere, got quite a nice security system!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185356",
"author": "Malvineous",
"timestamp": "2010-09-25T00:29:28",
"content": "I’ve had a look at some of these and it’s worth pointing out that some of the cheaper models seem to use a mere light sensor, and react only when a shadow passes over the sensor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185362",
"author": "fuckin' rich",
"timestamp": "2010-09-25T00:58:10",
"content": "Ya know, once the internet starts to add smell, requiring the use of network-interfaced air fresheners, I’m going to move into a cabin in the woods.If there are any woods left.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185366",
"author": "mick",
"timestamp": "2010-09-25T01:10:23",
"content": "@Erik Johnsonthanks for the link. alot of cool things there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185371",
"author": "Pat",
"timestamp": "2010-09-25T01:19:20",
"content": "Note: some of these guys have pretty interesting motors, as well. I know the Lysol brand one has a low voltage, high torque motor in it, way higher than is needed – it’s the same motor as in Fisher-Price baby swings, and you basically can’t find anything that small with that much torque available online.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185411",
"author": "Greycode",
"timestamp": "2010-09-25T02:46:29",
"content": "I am trying to find a reason for putting security screws in such a device. Anyone who wants in to one of those will get into it regardless of the screws. I own a dremmel, and there is precious little that the air freshener companies can do to keep me out of it, especially if I buy it and take it home with me.Anyone who does not want into it, simply will not go into it. The excuse of it being child-proof is no good either, as any kid with a hammer is going to beat the hell out of it until it gives up the ghost.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185424",
"author": "BP",
"timestamp": "2010-09-25T03:09:58",
"content": "Looks like the same screws used by Nintendo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185429",
"author": "echodelta",
"timestamp": "2010-09-25T05:01:54",
"content": "Definitely some hacks with this puppy. Tripping camera or a counter, or cat flap! CYA design by lawyers with the screws, makes it hard to break down and recycle electronics. Air on Earth is as fresh as it gets,how on earth is chemical pollution supposed to make it fresher. Stink bombs!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185591",
"author": "M4CGYV3R",
"timestamp": "2010-09-25T12:43:01",
"content": "Or, instead of grinding a metal rod to make a new tool, you could just cut through the cheap plastic shell…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185592",
"author": "pff",
"timestamp": "2010-09-25T12:49:17",
"content": "Seriously, why don’t people just buy components anymore? oohh look i got a pir sensor for $8.you could just buy one for less than half that price. sure so what you get a few switches? i don’t know anyone that builds circuits that doesn’t have a handful lying around anyway from a previous project. oh yeah and a transistor? awesome find!!! like they aren’t pennies brand new, with the specs that you require, with full length legs. sure, whatever, if he got it from a skip or it was broken or whatever then fine, but if went out an bought one of these just for the parts then you are retarded.also, i don’t particularly care about the environment, but no way would i buy this for a sensor and just dump the case and spray and whatever else comes with it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185645",
"author": "Mr Hacker",
"timestamp": "2010-09-25T14:39:24",
"content": "Air Wick air freshener uses a PIR sensor so thats the one im gonna hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185653",
"author": "Richard",
"timestamp": "2010-09-25T14:44:38",
"content": "@ Captain Matt1) Convert unit to silly string and add about 20 secs delay2) Put it on the windowsill of the gents in your local bar aimed where you’d stand to use the urinal – the delay means you catch your victim mid-stream3) Profit???",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185770",
"author": "Henrik Pedersen",
"timestamp": "2010-09-25T17:49:24",
"content": "@pffIt’s about the hacking spirit, something I can see that you will never understand… Using what you got on hands to create completely different new things.It’s a really good exercise to use what you have on hand, instead of just buying everything from new, believe me.. I torn apart my first toys at age 5 and build cranes with the motors ^^ Good old days….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185787",
"author": "Fili",
"timestamp": "2010-09-25T18:20:00",
"content": "@Henrik Pedersen:hacking an air freshener to spray foam or stinky gas onto victims: epic winhacking an air freshener to get the PIR sensor in the middle of the night when you have something urgent to fix: epic winhacking an air freshener that you just bought to get the PIR sensor just because you’re lazy to buy it: epic loss…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185788",
"author": "Fili",
"timestamp": "2010-09-25T18:20:45",
"content": "Actually I meant epic fail, not epic loss… Epic fail for me too :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185790",
"author": "0x4368726973",
"timestamp": "2010-09-25T18:24:12",
"content": "@pffThe point of this is NOT to go out and buy one to strip for parts. It is to take a USED one to strip for parts or repurpose.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185810",
"author": "Doug Paradis",
"timestamp": "2010-09-25T19:03:31",
"content": "I have just updated the instructable to show how you can reduce the size of the sensor module.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185811",
"author": "pff",
"timestamp": "2010-09-25T19:04:46",
"content": "Quote: “This air freshener sells for $8, but you can sometimes get it cheaper with coupons.”dont try and tell me what hacking is. you dont know i didnt take my toys apart as a kid. who do you think you are anyway? i tried to make it clear in my post if he had this lying around it would have been understandable, but the article seems to suggest that it was bought specifically, especially when it gets compared to a pir module, which is obviously going to be more expensive because its a module, not just the sensor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185821",
"author": "boingx",
"timestamp": "2010-09-25T19:17:05",
"content": "@pffRead the article, the instructable shows how to make a PIR “module” not just a sensor. It also shows how you can grab the functionally of the relay driver and LED to improve the “module”. It has been updated to show you how to reduce the size of the module. He mentions the price, because folks should know if it is something in their budget. Finally it is on sell at Walgreen’s right now for $4. I just bought one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185906",
"author": "Whatnot",
"timestamp": "2010-09-25T22:37:42",
"content": "Free security screws!J/K, sorta",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185949",
"author": "pff",
"timestamp": "2010-09-25T23:51:00",
"content": "wow i’m so happy for you.enjoy your junk.going to do anything useful with it? no i didn’t think so.connecting it up to an arduino and having it twitter when someone walks past does not count as useful btw.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186257",
"author": "Peter",
"timestamp": "2010-09-26T18:58:33",
"content": "This is just what I’m looking for! My neighbor smells really bad, so i was thinking if one of those things could be modified to automatically spray always before I enter the hallway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186572",
"author": "FridgeFreezer",
"timestamp": "2010-09-27T12:34:46",
"content": "I’d buy 8 or 10 of these and make a dot-matrix spray can graffiti writer… if only I had the time!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186666",
"author": "walt",
"timestamp": "2010-09-27T19:17:36",
"content": "***WARNING***this story links to instructables! BOOOO!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187129",
"author": "Phil",
"timestamp": "2010-09-28T07:12:56",
"content": "The Glade unit uses a photo sensor shadow technique but it only costs $5 at Wal-Mart. It uses ordinary Phillips screws and even comes with two AA batteries.Certainly worth the price for the sensor, motor, circuit board, and batteries.One very obvious application would be to keep track of people moving around, certainly an extremely useful application for commercial purposes like tracking the number of people who visit a museum and when are the peak times. Not that I’m planning on building that project – just pointing out that there are many useful purposes even excluding just having fun and learning a little more about electronics (which I think is a good goal on its own and doesn’t need additional justification).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "198104",
"author": "Mizugumo",
"timestamp": "2010-10-16T23:24:00",
"content": "I got a couple of triangular head screw drivers from an Amazon seller for $4.99 each. They are described as “Silverhill ASD3T Triangle Head Screwdriver”. The plastic baggie they came in has a label that says “ASD-TR1 Triangle Head Screwdriver for roombar(sic) and happy meal toys”. So, they’re good for opening other cheap crap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3158423",
"author": "Michael Beck",
"timestamp": "2016-08-26T11:42:39",
"content": "Anyone know how to disable the interval timed spray function? I want to use only motion without tripping my device. It is a “one off” design for security.I have smoked two boards already and can’t seem to figure the bypass route.Schematics? Thanks y’all",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.129585
|
||
https://hackaday.com/2010/09/24/the-hdcp-master-key/
|
The HDCP Master Key
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"drm",
"hdcp",
"master key",
"pastebin",
"reddit"
] |
Pastebin has
the HDCP master key
that we talked about
in a post last week
. This is the encryption protocol used for HDMI content protection on media such as Blu-Ray and High Definition cable television.
The master key array is a 40×40 set of 56-bit hex used to generate the key sets. You get one brief paragraph at the top of the document explaining what to do with this information. If you ask us we’re more interested in how this set was determined. So for some background information read the
key selection vector
(KSV) Wikipedia page. That points us to
an interesting discussion
proposing that if 40 unique device-specific KSVs can be captured, they could be used to reverse-engineer the master key. And finally, a bit of insight from a Reddit user (make your own decision on the dependability of this information) commenting on
the value of having the master key
.
In his comment, [iHelix150] covers the revocation system that HDCP uses to ban devices that are being used to circumvent copy protection. He says that having the master key makes it possible to push your own revocation lists onto devices. Each time a list is written to your device (TV, Blu-ray, etc.) the version number field for the list is updated. If you push an update with nothing on the revocation list, and set the version number to a binary value of all 1’s it will prevent any more rewrites of the list. This means that any previously banned hardware will be allowed back into the chain or trust.
So far this probably means nothing for you. But it’s fun to watch the cat-and-mouse involved in the DRM struggle, isn’t it?
| 23
| 23
|
[
{
"comment_id": "185171",
"author": "Mr Hacker",
"timestamp": "2010-09-24T16:46:16",
"content": "forget hdmi , back to using rgb cables like i do hahahaha , drm , you are down , i have a hdmi to rgb convertor , i i connect it to my computer and use debut video recorder to capture movies",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185181",
"author": "Henrik Pedersen",
"timestamp": "2010-09-24T17:20:23",
"content": "@Mr HackerExcept the fact you don’t get HD video anymore…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185191",
"author": "cgmark",
"timestamp": "2010-09-24T17:33:02",
"content": "You can do HD over RGB just fine all the way to 1080P.http://www.hdfury.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185193",
"author": "Mike Szczys",
"timestamp": "2010-09-24T17:43:54",
"content": "That that’s the whole point of HDCP right? It requires you to have a chain of trusted components from the source all the way to the display. A HDMI-RGB converter won’t be HDCP compliant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185194",
"author": "Pete",
"timestamp": "2010-09-24T17:49:50",
"content": "“You can do HD over RGB just fine all the way to 1080P.”Yes, it’s technically possible, but we always knew that. That’s why HDCP is so stupid. Because it is designed to prevent devices from performing actions they would otherwise be able to do.If you have an HDCP enabled source (like, for instance, a Blu-Ray player), if the chain of trust is broken, it will follow the rules set out by the media it’s playing. So trying to use one of those devices on a Blu-Ray disk with HDCP set to downgrade quality on untrusted outputs will result in sub-HD recording.This post is about a newfound way to get around the HDCP restrictions, rather than the mere act of recording HD. That’s obviously possible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185196",
"author": "nm",
"timestamp": "2010-09-24T17:58:20",
"content": "So if this is true, would that mean you could also do the opposite? Could a bluray disk be made with a revocation list that includes as many common devices as possible, so that it sort of bricks any connected hdmi device when played?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185197",
"author": "biozz",
"timestamp": "2010-09-24T18:00:35",
"content": "*saves it* MIRROR MIRROR MIRROR!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185238",
"author": "Mr Hacker",
"timestamp": "2010-09-24T18:31:00",
"content": "@pete but the only thing that i know you can do with dracking hdcp is just recording hd or playing it in other devices , here you could use the rgb converteron any rgb compatible device",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185239",
"author": "bountytobefree",
"timestamp": "2010-09-24T18:32:45",
"content": "“But it’s fun to watch the cat-and-mouse involved in the DRM struggle, isn’t it?”No, no it is not. The fact that I have to pay extra to buy intentionally-defective products pisses me off! It is painful to watch clueless corporate suits continue to jack up the prices of computers, software, and multimedia devices to pay for utterly useless DRM that does nothing but punish legitimate, paying customers. DRM has done more to promote piracy than The Pirate Bay could ever do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185244",
"author": "Taylor Alexander",
"timestamp": "2010-09-24T18:41:26",
"content": "@Mr HackerHDMI to RGB might still be 1080p, but if you want to re-capture that stream, it’s never going to be as high quality as the original, digital source. If you can make a bit-for-bit copy of the source, you’re better off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185248",
"author": "Poopdeedoo",
"timestamp": "2010-09-24T18:47:17",
"content": "The mouse will win this game every time. That cat needs to realize this and just give up already.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185256",
"author": "Dan Fruzzetti",
"timestamp": "2010-09-24T19:02:11",
"content": "Everyone knows that if you provide the cryptogram and the key on the same medium then in fact there is no encryption. Isn’t that true?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185264",
"author": "Prime",
"timestamp": "2010-09-24T19:16:55",
"content": "I tought the revocation list was RSA signed, but maybe i’m wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185324",
"author": "Chajtek",
"timestamp": "2010-09-24T22:46:06",
"content": "Isn’t it just a way to push new technology again?HDBaseT is ready to launch. “They” will simply say you cant watch this in HD on your 2 years old equipment. You need to buy new one.You need to have now 3d ready tv with new copy protection. Then Full 3d…All of us remember fight over SD.First Macrovision then CGMS. Now everyone has it,",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185336",
"author": "Paul",
"timestamp": "2010-09-24T23:18:45",
"content": "NM:Interesting idea. If the viral nature is true it should be doable. I dont know if it could be done off of a bluray burned disc though. Didnt commercially pressed DVDs have a spot that a regular burner couldnt burn on. I would suspect that revocation list would on the equivalent spot on a bluray.Now talk about a “Happy Days” type “virus” with that sort of list.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185367",
"author": "cde",
"timestamp": "2010-09-25T01:14:26",
"content": "@NM @Paul, there have been plenty of viruses on commercial products installed at the factory. Look at that one Digital Picture frame that had a virus so if you plugged it in by USB, boom-infected.All it takes is one person messing with the master copy, adding in a revocation list that includes everything except the key for the test equipment used, and then a bunch of companies are liable for breaking a bunch of tvs/players. The store(s) that sold the dvd, the distributor, the manufacturer, the studio, the property owner, etc. Lawsuit cluster fuck. And if a couple of Congress Dweebs get affected, there might be a chance they make that type of bullshit tech illegals!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185432",
"author": "foobar",
"timestamp": "2010-09-25T05:09:59",
"content": "iHelix150 is wrong. The master key only lets you make new keys, it doesn’t let you sign the revocation list. You need the DSA private key for that, and good luck getting that (unless Intel leaks it).The revocation system is dead because you can make as many KSVs as you want, but you can’t “un-revoke” anything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185472",
"author": "pc486",
"timestamp": "2010-09-25T07:14:05",
"content": "iHelix150 doesn’t know what he’s talking about. HDCP revocation is not managed by the master key at all. The revoked key list is signed by Digital Content Protection LLC with a DSA key. We do not know DCP’s DSA private key, so we cannot fake a revocation list.The HDCP specification is public information. Refer to Section 5 – Renewability (page 55 HDCP r1.4) for information on System Renewability Messages (the revoked key list). DCP’s DSA key is in Table 5-4. Section 2 – Authentication is where the HDCP KSV’s and HDCP private keys are discussed (protocol layer for authentication and generation of the session key).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185518",
"author": "Gert",
"timestamp": "2010-09-25T10:15:37",
"content": "The only problem i have with cracking and hackers is that sometimes the wrong people get hurt.There are a lot of money hungry corporate assholes out there trying to cash in on everything. And they use things like copy-protection to have a totalitarian regime of who uses what content.And those assholes need to be learned a lesson.But then again just look at the poor guys who made World Of Goo, they lost huge amounts due to piracy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186044",
"author": "markus",
"timestamp": "2010-09-26T05:01:20",
"content": "Jump to the end of the post for the point.I have a Samsung LCD hooked to a PC via HDMI. There are times when there are signal issues- HDCP does not specify key handling apparently… Samsung Tech says to call Asus, Asus tech says to call Samsung. But there are times when if the TV is turned on after the PC is powered (or the mouse moved if the DVR woke it from a sleep state) it misses the key and therefore the “No Signal” box moves around the screen.While I am aware of many workarounds such as HDMI-DVI converters, HDMI-DVI cables, component vs HDMI, etc. I still like just using a simple HDMI-HDMI, it’s a 45-foot run and it’s nice to be able to get away with one cable.Sucks there is this one sour grape to ruin the batch. Could this be a legitimate use under the bill that Congress passed a few weeks ago… the one about making it legal to jailbreak iPhones? “Six Exemptions Regarding the Circumvention of Access-Control Technologies”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186117",
"author": "Sitwon",
"timestamp": "2010-09-26T12:24:09",
"content": "The guys who made World of Goo made huge profits. For a small, independent, development house they made off like bandits compared to their peers in the industry.I wouldn’t loose sleep speculating over how much they “lost” due to piracy. As has been pointed out numerous times in piracy debates, you are likely mis-counting their losses.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "566915",
"author": "Danman",
"timestamp": "2012-01-25T07:13:00",
"content": "The pastebin is gone (surprise surprise) any chance anyone knows of a mirror? I have heaps of uses for this, I would really appreciate any help :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "574338",
"author": "Anon",
"timestamp": "2012-02-03T14:25:43",
"content": "Danman,Here is a copy:http://pastebin.com/BKTnqRmSPlenty of mirrors around.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.353328
|
||
https://hackaday.com/2010/09/24/thieves-armed-with-a-vacuum-cleaner-still-on-the-run/
|
Thieves, Armed With A Vacuum Cleaner, Still On The Run
|
Caleb Kraft
|
[
"News",
"Security Hacks"
] |
[
"robber",
"security",
"thief",
"vacuum"
] |
Thieves in Paris have been
stealing money with the clever use of a vacuum
. Not just bits of change here and there, they’ve stolen over 500,000 euros. They noticed that Monoprix supermarkets use a pneumatic tube system to transport rolls of cash to and from the safe. Realizing this was the weakest point in the security, they simply drilled a big hole in the tube, hooked up a vacuum and sucked the cash out. Forget lock picking or safe cracking, this had to be ridiculously easy.
The thieves are still out there, sucking their way to riches. At this point, they’ve hit 15 locations. Their luck has to run out some time right?
[via
Slashdot
]
| 32
| 32
|
[
{
"comment_id": "185143",
"author": "FoxxCommand",
"timestamp": "2010-09-24T15:39:21",
"content": "Brilliant",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185144",
"author": "xeracy",
"timestamp": "2010-09-24T15:42:51",
"content": "who said crime doesn’t pay?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185148",
"author": "UltraMagnus",
"timestamp": "2010-09-24T15:47:41",
"content": "These guys really suck",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185149",
"author": "Tuttomenui",
"timestamp": "2010-09-24T15:47:52",
"content": "Hahaha, That reminds me of the guy that took one of those septic tank vacuums cleaned it up, put padding on the inside and he uses it to suck ground squirrels right out of their holes.I bet you could empty the entire Vault with a vacuum like that =) .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185150",
"author": "James",
"timestamp": "2010-09-24T15:48:18",
"content": "Physical access is root access :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185156",
"author": "Decius",
"timestamp": "2010-09-24T15:58:20",
"content": "500,000 euros.I don’t think they should hit up any more places after that considering more people have caught on by now. (not to mention the free 500,000 Euros)Wonder if they used a dyson? ;o",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185158",
"author": "Freax",
"timestamp": "2010-09-24T15:59:52",
"content": "Well, it is not like they did not break locks and tricked/destroyed alarm systems to do this, so it was not that “easy” I figure…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185163",
"author": "Runko",
"timestamp": "2010-09-24T16:27:58",
"content": "Been there, done that:http://www.youtube.com/watch?v=7Ooam-N_5tE&NR=1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185167",
"author": "James",
"timestamp": "2010-09-24T16:34:26",
"content": "You’ve no idea how they did it, where the pneumatic tubing goes – the whole point might be the company missed a serious security flaw like the pipework going outdoors for a stretch. Otherwise I’d expect it to be pretty obvious that they were climbnig about with a vacuum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185170",
"author": "Frollard",
"timestamp": "2010-09-24T16:45:57",
"content": "It doesn’t make much sense — the only transport systems I’ve seen like this indeed use negative pressure to get the vessels from one side of the building to another, but when they land in the safe, they exit the tube system after passing a venturi-like bypass…re-sucking wouldn’t return the tubes to the pipe. something fishy is being reported.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185173",
"author": "LifeSizeActionFigure",
"timestamp": "2010-09-24T16:53:34",
"content": "I wonder if they’ve ever accidentally tapped into a sewer line. Now THAT would suck!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185176",
"author": "Ho0d0o/Heatgap",
"timestamp": "2010-09-24T16:56:37",
"content": "Absolutely brilliant. These guys are simply hardware hackers with large testicular fortitude.If your hating on these guys it’s probably subconscious jealousy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185182",
"author": "Charper",
"timestamp": "2010-09-24T17:24:18",
"content": "Interesting, but the only hack here is social.The Sunis a british tabloid newspaper (like National Enquirer here in the states). The only original reference to this story comes from this paper.Cool, but I bet fake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185184",
"author": "Charper",
"timestamp": "2010-09-24T17:27:06",
"content": "Edit:Maybe ‘fake’ is a strong word. I’m sure a more reliable source will eventually come out showing that it has a grain of truth, but has been exaggerated and sensationalized.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185281",
"author": "Nunya",
"timestamp": "2010-09-24T19:39:11",
"content": "Uhmm can anyone say cheap check valve?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185283",
"author": "cynox",
"timestamp": "2010-09-24T19:40:50",
"content": "I ve seen this today in the newspaper, it wasnt well explained, but now I realise that it is awesome xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185287",
"author": "Pilotgeek",
"timestamp": "2010-09-24T20:18:12",
"content": "@Frollard : I believe they are intercepting the money as it’s going through the tube, not “sucking it back out”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185298",
"author": "Kyle",
"timestamp": "2010-09-24T20:51:46",
"content": "Agree with Charper. Until someone other than the Sun picks this up I would be skeptical to believe it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185313",
"author": "Hirudinea",
"timestamp": "2010-09-24T21:46:08",
"content": "I’ve said it before and I’ll say it again, the French suck!@ Ho0d0o/HeatgapYes I am jealous, all I get with my vaccum is dust!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185318",
"author": "uky",
"timestamp": "2010-09-24T22:28:24",
"content": "they probably broke in at night, used the valve where the tube connects to the safe, drilled through it because its definitely the weakest point, and then put a vacuum into the safe to grab the money.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185335",
"author": "Tripe B",
"timestamp": "2010-09-24T23:16:45",
"content": "I suspect that there has been some deliberate misreporting in the media around this to make it harder for copy cat criminals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185364",
"author": "ejonesss",
"timestamp": "2010-09-25T01:06:20",
"content": "a simple spring loaded check valve like flap placed over the pipe in the safe should prevent that.the bank’s vacuum is probably in the safe so it would suck open the flap to let the money in but someone applying vacuum from the teller window will suck the valve shut and not get the money.if they are lucky they may get the money holder tank if the bank is big enough to have multiple teller windows or the tubes are stored inside",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185370",
"author": "cde",
"timestamp": "2010-09-25T01:16:53",
"content": "@Frollard The system is two-way. It allows sending and receiving coins from the storage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185474",
"author": "mrcat",
"timestamp": "2010-09-25T07:23:03",
"content": "i was just talking to a friend about this a couple of days ago, they use a similar system in a supermarket chain here in new zealand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185477",
"author": "Dan Fruzzetti",
"timestamp": "2010-09-25T07:35:58",
"content": "Who would employ a system with such obvious security flaws? kindergarten students?seriously, this is 80% as bad as the cash-card-with-value-only-on-the-card from wal-mart.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185485",
"author": "freakch",
"timestamp": "2010-09-25T08:38:54",
"content": "@Charper definitely not a fake, this news was well covered by French newspapers. It seems that the gang started their malpratices since 2006 …brilliant hack ! At last a good reason to be proud of being french… not a lux in this time :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185501",
"author": "Necromant",
"timestamp": "2010-09-25T09:32:58",
"content": "Well, That’s Stainless Steal Rat style, if you’ve read the book.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185505",
"author": "SIKDIDIT",
"timestamp": "2010-09-25T09:43:43",
"content": "Store Manager reportedly told Police….“This Really Sucks”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185654",
"author": "mangler",
"timestamp": "2010-09-25T14:46:33",
"content": "Please do not turn this site into some anti-crime retarded site. I read enough shit page where every 5th phrase contains *crime*.If you want to post article like this (because of the “hack”) then at least add pictures to it. I never know stores use vacuum tubes to transfer cash lol, must be some great french idea…The money they suck out is insured by multibillion dollar store chains for sure. The employers wont have losses because of this.Im so sick that just because some people able to get some easy money the media creates a hatespeach against them. The real criminals are in polititian, ceo, manager positions stealing hundreds of millions of dollars and don’t get caught, bravo!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185730",
"author": "Paul",
"timestamp": "2010-09-25T16:37:21",
"content": "Probably a little something along these lines…http://www.dailymail.co.uk/news/article-462039/Fiddler-roof-thief-pocketed-90-000-slick-supermarket-ruse-gets-jailed.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186088",
"author": "Jas",
"timestamp": "2010-09-26T08:34:34",
"content": "Harry Harrison predicted this in the book “A Stainless Steel Rat is Born”, back in 1985.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186235",
"author": "Olivier",
"timestamp": "2010-09-26T17:53:02",
"content": "@mangler: stop being stupid, those vacuum pipes have been used for years in supermarkets everywhere in the world, so the the cashiers don’t have tons of money with them.But, of course, something is missing in the story, because there’s no way the money can be stolen magically, just with a vacuum cleaner.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.418716
|
||
https://hackaday.com/2010/09/22/build-a-tetrahedral-ambisonic-microphone/
|
Build A Tetrahedral Ambisonic Microphone
|
Mike Szczys
|
[
"digital audio hacks"
] |
[
"3d",
"ambisonic",
"microphone",
"preamp",
"recording",
"tetrahedral"
] |
[Dan Hemingson’s] been refining a design for
building a tetrahedral ambisonic recording system
. This is a set of four microphones used to record audio that can later be mixed down for a three-dimensional listening experience. His goal is an easy and inexpensive build while maintaining the highest fidelity standards possible. Lucky for us he’s made a set of
extremely detailed build instructions
you can use to make your own. In addition to the mounting bracket seen above he has also developed a pre-amp module that connects to the four mics; it’s part of the build instructions with schematic and board layout files available as well.
[Thanks Isaac]
| 27
| 26
|
[
{
"comment_id": "184293",
"author": "xeracy",
"timestamp": "2010-09-22T20:28:23",
"content": "good luck getting yourself in a theater with a iosono sound system… guess you could use",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184294",
"author": "xeracy",
"timestamp": "2010-09-22T20:28:49",
"content": "…fail…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184350",
"author": "John",
"timestamp": "2010-09-22T22:55:02",
"content": "Nifty! Although i don’t really understand it. Is he going to put speakers in a similar arrangement? And if so, how does is the recreation affected by the (new) room and position of the listener. I’d imagine this is something for a variable listening position though. .. but what and how and why and what!Still, good job and interesting concept! makes you think huh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184352",
"author": "John",
"timestamp": "2010-09-22T22:58:40",
"content": "I gues google is my friend too! a nice introduction to the subject on ambisonic.net",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184353",
"author": "draeath",
"timestamp": "2010-09-22T23:06:40",
"content": "I could think of a few other uses for this.Namely capturing impulse responses to load up and simulate the acoustic characteristics of an environment. This is usually done in stereo, but with some work could probably fully replecate an area!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184354",
"author": "strider_mt2k",
"timestamp": "2010-09-22T23:07:49",
"content": "Wow that is insane looking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184357",
"author": "Fallen",
"timestamp": "2010-09-22T23:14:06",
"content": "That is a fascinating idea.Great documentation too :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184361",
"author": "medix",
"timestamp": "2010-09-22T23:21:49",
"content": "He ought to build himself an ultrasonic anemometer while he’s at it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184365",
"author": "joel",
"timestamp": "2010-09-22T23:36:00",
"content": "Interesting. Thanks for the documentation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184373",
"author": "John",
"timestamp": "2010-09-23T00:01:39",
"content": "@draeath like in convolution reverb you mean? that would be an interesting application indeed. Im just not that sure about “3d’ness” of sound and our ability to hear it.I think we mostly experience 3D sound (i dont like this phrase either) when we move, or the source moves. And if i understand correctly this bundle of mics would improve the positioning of that sound.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184406",
"author": "M4CGYV3R",
"timestamp": "2010-09-23T01:50:06",
"content": "@medixHow do you measure wind speed with ultrasound?Somehow I’m not convinced that a $2.60 mic module is going to give you quality sound reproduction.There is a reason people spend hundreds to thousands on a single microphone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184408",
"author": "M4CGYV3R",
"timestamp": "2010-09-23T01:51:39",
"content": "Also, at that price, just get two more and cube it for true 3D sound. Just watch out for phase.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184435",
"author": "Whoever",
"timestamp": "2010-09-23T03:20:42",
"content": "“Namely capturing impulse responses to load up and simulate the acoustic characteristics of an environment. This is usually done in stereo, but with some work could probably fully replecate an area!”Been there. Done that. Fons Adriaensen includes some ambisonic IRs with his JConv software (and I think some more on his website), if you want to know what it’s like.Another application is to convolve the ambi recording with HRTFs to get binaural sound minus the cumbersome head-sized microphone.This method does have it’s cons though, as it does not produce synaesthesia like actual dummy heads, and the inexact ITD causes some comb filtering.“Somehow I’m not convinced that a $2.60 mic module is going to give you quality sound reproduction.”You’re in for a surprise – all that is needed is a person with the right knowledge. What is usually compromised with these cheap mics is the signal to noise ratio, these capsules are noisy on the low side and distort rather soon on the loud side, so you have to mind your SPL.Even then, “hundreds of dollars” can get you a perfect microphone, the people who pay “thousands” are just paying for placebo, brand name, or just because they think using the same mic as [blindly praised old artist] will magically improve their recordings.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184437",
"author": "Whoever",
"timestamp": "2010-09-23T03:29:14",
"content": "Regarding the phase, I don’t know how big is this thing (too lazy to read so many PDFs – was dividing it so much really necessary?), but if you keep the total diameter of the capsule bundle under 2cm there shouldn’t be much problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184448",
"author": "Whatnot",
"timestamp": "2010-09-23T04:14:19",
"content": "All that metal doesn’t seem acoustically sound, if you pardon the pun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184459",
"author": "Whoever",
"timestamp": "2010-09-23T05:10:47",
"content": "@Whatnot: Well, as I was saying, I’m too lazy to really check this out, but as far as I can see from the article pic, all the metal is behind the unidirectional (key word: unidirectional) capsules, so reflections off the metal should not have a noticeable effect. Plus the diameter looks really small, if anything it only affects very high frequencies.Handling noise, on the other hand…. (if you pardon the pun, of course).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184481",
"author": "Bosse",
"timestamp": "2010-09-23T06:15:17",
"content": "M4CGYV3R, If you use google and search for ambisonics and read the websites on the first page and you will find that a tetraeder microphone gives you thrue 3D recordings.In addition to this you can use the vvmic software to extract the sound capture of one or several different type of virtual microphones placed in the same spot.http://mcgriffy.com/audio/ambisonic/vvmic/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184532",
"author": "elektrophreak",
"timestamp": "2010-09-23T10:37:40",
"content": "now that is some cool stuff! sound quality aside, it is a great build and does the trick.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184595",
"author": "medix",
"timestamp": "2010-09-23T13:48:00",
"content": "@M4CGYV3R: I’ve never really looked into it. I didn’t even know it was possible until a few years back when I was visiting a research lab at NREL where they were studying air flow dynamics along mining walls. They were using ultrasonic anemometers to get air flow and direction (in 3D). I’ve been vaguely interested ever since, just never really had the time to check it out in depth. Pretty cool stuff regardless.. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184618",
"author": "Bogus Name",
"timestamp": "2010-09-23T15:26:02",
"content": "For more information on Ambisonics, visit Wikipedia.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184635",
"author": "M4CGYV3R",
"timestamp": "2010-09-23T16:44:32",
"content": "@Bosse:With 6 of them you don’t need software to decode as 3D sound, and it’s only about $5 more.No combination of microphones will truly mix properly to create a new single microphone profile.The mathematical combination of one waveform with another will not provide the same exact sound as a single waveform captured from the profile you are trying to simulate.The ‘virtual microphone’ idea is OK if you’re not too picky about how exact the profile is.@medixThat sounds cool. I didn’t realize that moving air had enough sonic reflection or distortion to use ultrasound to visualize it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "538197",
"author": "Frank",
"timestamp": "2011-12-17T17:08:27",
"content": "A cardioid or supercardioid pattern already comme from a mix between a omni and a figure 8 pattern.Ambisonic mic are capturing all information needed to reproduce all mic pattern, pointing into any direction (3D), can be format for al kind of stereo, surround, 5.1, quad, 7.1, or what ever you need. In fact, it is the way to go if you what a 3D images, since all other technics will introduce combfilter problem…exept for double MS witch is exactly the same thing minus the possibility of adding X axes (height).In thermes of spacialisation, there is nothing you cannot do with it.The only limitation will be in is spectrum, so if you don<t like the sound of the capsule (is color, there is nothing you can do about that.",
"parent_id": "184635",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "184671",
"author": "medix",
"timestamp": "2010-09-23T18:43:49",
"content": "M4CGYV3R: I didn’t either. I’ve read that you can do the same thing inside pipelines as well (only with moving fluid/oil).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184766",
"author": "asheets",
"timestamp": "2010-09-23T21:49:46",
"content": "@M4CGYV3R — This is how you build an ultrasonic anemometer:http://thiesclima.com/usanemo_e.htmA wind velocity component in the direction of the propagation of the sound supports the speed of propagation, thus leading to an increase in the speed. A wind velocity component opposite to the direction of propagation, on the contrary, leads to a reduction of the speed of propagation.The speed of propagation resulting from the superposition leads to different propagation times of the sound at different wind velocities and directions over a fixed measurement path.I’d personally build one with an array of 6 ultrasonic units, though (N/S, E/W, U/D)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184793",
"author": "pcx",
"timestamp": "2010-09-23T23:22:20",
"content": "try here for other home made ambisonic mikes –http://www.ambisonia.com/wiki/index.php/Microphones#Home_made_tetrahedrons– i found that a while ago and it looked like a good project. there are examples of recordings on the same site, some are very very good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184809",
"author": "lr",
"timestamp": "2010-09-24T00:43:03",
"content": "Is there any reason to make the frame out of metal vs plastic? Polystyrene sprue (e.g. leftovers from Airfix kits) would be much easier to join together.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185317",
"author": "projectbluebook",
"timestamp": "2010-09-24T22:26:21",
"content": "vibrations @IRthis sort of grounding approach also minimises noise..just a thought, but a “ghetto” way to make this is to harvest microphones from old mobile ‘phones and now-extinct analogue cordlesses.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.481651
|
||
https://hackaday.com/2010/09/22/input-device-using-led-and-four-photoresistors/
|
Input Device Using LED And Four Photoresistors
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"CdS",
"led",
"mouse",
"photoresistor",
"Teensy",
"usb"
] |
[Julien] built
an input device that uses reflected light detected by some photoresistors
. Placing your hand above the device will reflect light from the LED back down onto the cadmium-sulfide sensors. The resistance of those sensors is read by four ADC pins on a Teensy microcontroller and translated to mouse movements. In the video after the break you can see that this works rather well in controlling the cursor. The
source code is available on pastebin
but we’re also going to host
the code for posterity
.
[youtube=http://www.youtube.com/watch?v=5BfCcuIaVY0]
[Thanks Patrick]
| 38
| 38
|
[
{
"comment_id": "184242",
"author": "RodgerTheGreat",
"timestamp": "2010-09-22T18:35:40",
"content": "I presume you’re hosting the code for ‘posterity’.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184248",
"author": "kevin",
"timestamp": "2010-09-22T18:46:21",
"content": "Wow. Dude needs to sell that to hospitals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184249",
"author": "APerson",
"timestamp": "2010-09-22T18:47:16",
"content": "from dictionary.com:prosperity:1.a successful, flourishing, or thriving condition, esp. in financial respects; good fortune.2.prosperities, prosperous circumstances.posterity:1.succeeding or future generations collectively: Judgment of this age must be left to posterity.2.all descendants of one person: His fortune was gradually dissipated by his posterity./grammartrollthis seems like it could be used for a lot of other very sleek input solutions with a little modification. tack a bit of frosted glass over it and maybe do it in IR you can fairly easily make a poor man’s trackpad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184251",
"author": "Per Jensen",
"timestamp": "2010-09-22T18:49:55",
"content": "I would rather have done it with 4 LED’s, since LED’s can be used for sensors too, and they are faster than CDS cells too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184252",
"author": "projectbluebook",
"timestamp": "2010-09-22T18:50:08",
"content": "hm.. interesting hack.this got me thinking, why not use a wheatstone bridge setup, and save on uc pins? all that is needed is a pseudosine wave (PWM) and this will work on a cheaper micro with more free pins for other functions.another worthwhile hack is to replace the sensors with infrared LEDs drilled and filled with ZnS glow in the dark compound to add dual functionality as both indicator and sensor.(ZnS flashes when exposed to IR light)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184259",
"author": "Brennan",
"timestamp": "2010-09-22T18:56:39",
"content": "Nice proof of concept but this is hardly very precise or responsive enough to be used in almost any situation. It wouldn’t be precise enough compared to a mouse or touchpad or nub, so high-precision applications are out. And it wouldn’t even be good enough for basic tasks like navigating a web browser. But like I said, it’s a really clever idea and pretty cool execution. I agree with the above poster that he should have used IR and IR sensors so it doesn’t blind you to use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184289",
"author": "Frenchie",
"timestamp": "2010-09-22T20:20:15",
"content": "0:10 – “Blue LED.. Obviously”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184291",
"author": "svofski",
"timestamp": "2010-09-22T20:23:52",
"content": "This is very interesting. Something like this could be converted into a really cheap touchscreen implementation. But I’m not sure about the details yet :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184309",
"author": "Salvador Faria",
"timestamp": "2010-09-22T20:57:04",
"content": "Very nice hack (cheap and simple)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184324",
"author": "fluidic",
"timestamp": "2010-09-22T21:46:09",
"content": "It works. But it doesn’t look like the control loop is very tight or precise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184329",
"author": "J. Peterson",
"timestamp": "2010-09-22T21:55:19",
"content": "Please people – when you make a video of your project, do us a favor and invest in a tripod.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184335",
"author": "Julien",
"timestamp": "2010-09-22T22:10:38",
"content": "Hey :)I’m the creator of this prototype.Just a few notes:– This project was made using only the few components I had in my room, while I was waiting for a bunch of new components (among which some IR emitter/receivers) to arrive by mail.– This is just a proof of concept, that was never intended for any practical use.– It has no practical use, since nobody wants to stay all day long with one hand in the air…– It’s fast to build, it’s fast to code, and it’s fun to do.About the video:– It was made in French and with a crappy quality since it was only intended for a friend.– I never thought more than 2 or 3 people would ever see it, else I would have made it in English, and with a way better quality.– I didn’t keep the prototype, and re-used its components a few days later. So I won’t make a new and better video, since I’m lazy to build it again.If anybody makes a better version (and I’m sure some of you will), using IR lights or other variations, post the video as a reply to this one :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184340",
"author": "TomN",
"timestamp": "2010-09-22T22:25:49",
"content": "Can anyone think of a reason he would have mounted the photoresistors at the corners instead of up/down/left/right config :S",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184343",
"author": "Julien",
"timestamp": "2010-09-22T22:35:27",
"content": "Yes, there is a reason:Each photoresistor is used both for up-down and left-right detection;By having the 4 photoresistors at each corners, I have 2 horizontal and 2 vertical detectors:1 23 4To detect the up-down movement, I use both [1;3] and [2;4].To detect the left-right movement, I use both [1;2] and [3;4].With the config you’re suggesting it would be like this:12 34To detect up-down I would be able to use only [1;4] and to detect left-right [2;3], which would be less precise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184344",
"author": "Cory Borrow",
"timestamp": "2010-09-22T22:37:07",
"content": "That is quite interesting, IR’s would have been better just for the fact the don’t blind you but not as visual on the video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184355",
"author": "draeath",
"timestamp": "2010-09-22T23:12:18",
"content": "would adding the NSEW positions allow more precision, or would that be relatively pointless?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184360",
"author": "Fallen",
"timestamp": "2010-09-22T23:19:37",
"content": "Couldn’t this be done with 3 CdS cells instead of 4? In a triangle around the LED? I’d imagine it would make the math a little more hairy though.Cool proof of concept though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184371",
"author": "fluidic",
"timestamp": "2010-09-22T23:58:36",
"content": "“It has no practical use, since nobody wants to stay all day long with one hand in the air”I wouldn’t say that. It does need some refinement – it’s a prototype, so that’s hardly surprising. But imagine building this into a laptop keyboard, or a public kiosk, or a terminal in a hospital.Not that this approach is the only way to get this result…but the hands-free approach is well suited to a number of applications, even if it’s not about to replace everyone’s mouse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184374",
"author": "Whatnot",
"timestamp": "2010-09-23T00:05:28",
"content": "Problem here seems that your hand is an irregular surface causing errors that need smoothing out.But you could use it with a flat square above it to make it more precise if you needed a contactless tilt indicator for something, although unfortunately I can’t think of such a situation right now :)Although.. it would work through a window, made from glass or armored glass/plactic, if you use something transparent to IR but not visible light it could also be made covert, maybe that has a use? Secret entrance handshake maybe?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184378",
"author": "fluidic",
"timestamp": "2010-09-23T00:14:14",
"content": "@WhatnotYou would probably want to use a source outside the visible range anyway simply so it’s not (perceptibly) shining at the operator.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184380",
"author": "Patrick",
"timestamp": "2010-09-23T00:17:54",
"content": "Yaaay! I like this one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184386",
"author": "Anonymouses",
"timestamp": "2010-09-23T00:32:36",
"content": "Keep in mind that due to the banned substance lists, that cadmium sulfide photosensors are an absolute no-no in ANY commmercial application.This means, solar cell LED garden lights and everything else.Just an FYI as I have not seen these used in a while. They were a good technology in things like self dimming mirrors 20 years ago, but they are banned now in commercial apps.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184388",
"author": "jeditalian",
"timestamp": "2010-09-23T00:33:56",
"content": "after watching the video.. i’m not so sure they have dollar tree in france, or french quebec or wherever they speak french",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184389",
"author": "jeditalian",
"timestamp": "2010-09-23T00:35:56",
"content": "dollar tree being for buying a cheap tripod, since i don’t see that comment",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184392",
"author": "jAMES",
"timestamp": "2010-09-23T01:00:28",
"content": "Very nice build Julien. This would be the ultimate mouse controller for someone like Howie Mandel who is afraid to touch things :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184436",
"author": "neato",
"timestamp": "2010-09-23T03:27:55",
"content": "I love this idea. It may have no immediate practical uses but it’s clever, simple and above all cheap. Plus, I’m sure it was fun to create. Let’s have some more of these type of projects, they don’t all have to solve real-world problems to be interesting or inspiring.Thanks for sharing this Hack A Day!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184519",
"author": "James",
"timestamp": "2010-09-23T09:17:39",
"content": "@jeditalian – well done for spotting a slightly wobbly vid, but missing both the first complaint about it being wobbly AND the author’s statement that it was never meant for public consumption :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184580",
"author": "Philippe",
"timestamp": "2010-09-23T12:53:12",
"content": "Beau travail, Julien ! Le génie français à l’œuvre, hahaha !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184592",
"author": "Julien",
"timestamp": "2010-09-23T13:30:24",
"content": "@Anonymouses: Why are photoresistors still sold if their’s banned from commercial applications?I bought these in February 2010 on an american website.But anyway, you could replace them with IR receptors, and it would probably be more stable, since there would be less ambient interferences to compensate for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184594",
"author": "KC8RWR",
"timestamp": "2010-09-23T13:34:34",
"content": "Nice! Very creative! I’m going to have to add this to my list of things to try… eventually…@Anonymouses – But is it banned anywhere outside of the EU?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184603",
"author": "kevin mcguigan",
"timestamp": "2010-09-23T14:19:01",
"content": "i would like to say that anyone that sends a hack to hackaday and it gets posted is truly someone who has worked hard to make something no one else has or has improved upon an idea already out there, and to all of you that tear down and criticize the post should keep your comments to yourself. if you are so smart, then improve upon the hack and submit it yourself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184605",
"author": "walt",
"timestamp": "2010-09-23T14:25:18",
"content": "genius!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184626",
"author": "Whatnot",
"timestamp": "2010-09-23T16:07:11",
"content": "You can get cadmium free photosensitive elements now like the AMS104Y.From the AMS104Y datasheet:Built-in optical filter for spectral response similar to the human eyePhotocurrent is proportional to illumination (linear output)Lead-freeIn 3 types of packages:SMDLead-type same as CdS cellChip (miniature)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184662",
"author": "Mike Szczys",
"timestamp": "2010-09-23T17:52:17",
"content": "@APerson: oops… fixed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186006",
"author": "Ulrich Lukas",
"timestamp": "2010-09-26T03:16:53",
"content": "–> Use a high frequency modulated light sourceto make the rig insensitive to ambient light(DC and 50, 60, 100, 120 Hz components)–> Use IR (same reason, plus it’s not so blinding)–> Use photodiondes because of the fasterfrequency response–> Calibrate the intensity response of the diodes–> Perform continuous, intermittent,re-calibration during operation–> Post the results once it works ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "192108",
"author": "Panikos",
"timestamp": "2010-10-06T10:18:12",
"content": "Make a VR room. Embed a bunch of this on the walls and something (accelerometers) to track movement of legs arms etc, combine inputs and you have the whole body as an input device",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "351535",
"author": "Vivi Fizgig",
"timestamp": "2011-03-08T06:44:43",
"content": "I saw this from the Teensy page and was hoping it was the grid of LEDs that sense position somehow by themselves. Anyone got that link? It seems a logical Teensy project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "546468",
"author": "MauiMaker",
"timestamp": "2011-12-29T10:54:42",
"content": "Link to the local hosted code is broken as of 12/28/11pastebin still works.so much for posterity :-)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.870446
|
||
https://hackaday.com/2010/09/22/darbuka-band/
|
Darbuka Band
|
Mike Szczys
|
[
"Musical Hacks"
] |
[
"darbuka",
"drum",
"robot",
"servo"
] |
This robotic band
has just the right amount of drums. [Liat] and her colleagues fit a group of
Darbuka
drums
with a pair of servo-driven mallets. We’re quite surprised that the servo motors achieve such a successful strike and rebound without dampening the vibrations of the drum head. This is more
often accomplished with solenoids
because of their quick response and relative strength.
You can listen to a performance of this work-in-progress in the video after the break or make plans to see it live. The installment was built for
the Bat-Yam international biennale of landscape urbanism
. It will be attached to, and powered by alternative energy producers like solar cells and wind turbines.
[youtube=http://www.youtube.com/watch?v=uqecHPnvb6c]
| 13
| 13
|
[
{
"comment_id": "184203",
"author": "svofski",
"timestamp": "2010-09-22T17:24:16",
"content": "A strange choice of instrument for actuators/transducers like these? The darbukas are not meant to be hit with sticks, their sound in the video cries it out loud.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184204",
"author": "danman",
"timestamp": "2010-09-22T17:24:44",
"content": "Very nice! Impressive!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184210",
"author": "tsadowski",
"timestamp": "2010-09-22T17:37:36",
"content": "[svofski] I agree completely. They are also not meant to sit flat on the floor like that, that greatly affects the timbre of the drum making it sound flat. The two together and I wonder why they didn’t just use a more modern drum, especially since they sound like snares with the snare turned off!Other than that I appreciate the concept!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184211",
"author": "chris",
"timestamp": "2010-09-22T17:38:37",
"content": "No there is a case in point were just a little de-synchronisation could be just the ticket…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184226",
"author": "Fallen",
"timestamp": "2010-09-22T18:09:06",
"content": ":S Sounds like noise to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184228",
"author": "haineux",
"timestamp": "2010-09-22T18:10:05",
"content": "http://www.boingboing.net/2005/07/26/digital_cowbell.htmlAlas, the original site is long gone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184240",
"author": "Mike",
"timestamp": "2010-09-22T18:35:12",
"content": "It’s like minions of evil robot drummers. Excellent…Pretty awesome, except as tsadowski mentioned it’s the wrong application of the drum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184301",
"author": "Hirudinea",
"timestamp": "2010-09-22T20:36:47",
"content": "Needs more Cowbell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184319",
"author": "spyder_21",
"timestamp": "2010-09-22T21:36:01",
"content": "I like the concept, but try it on deep bass drums",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184346",
"author": "Scouris",
"timestamp": "2010-09-22T22:41:24",
"content": "From the Youtube video description, they say the drums will be mounted on the wind generator arms, which may mean that they produce a different timbre than in the video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184424",
"author": "jaded",
"timestamp": "2010-09-23T02:43:44",
"content": "@chris,You’re absolutely right. The robotic synchronization ruins the richness of the sound.Perhaps “ruins” is too strong of a word. But I don’t care for the sound they produce, and would much prefer the organic sound of human drummers. Nothing they couldn’t fix in the inputs to this, of course, but until then it’s like listening to any other mechanical device, instead of listening to music.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184477",
"author": "jonathan",
"timestamp": "2010-09-23T06:06:05",
"content": "These are only the very first runs of the system.Actually, it produces quite an impressive deep bass sound – which is not captured by our mic.. Also, in the planned installation, the drums will be hanged three meters above the ground.Future videos will follow :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184999",
"author": "Eirinn",
"timestamp": "2010-09-24T10:12:55",
"content": "Sooooooul it needs soouuuuuuul – interesting project though.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.788436
|
||
https://hackaday.com/2010/09/22/matrix-clock-is-a-breadboarding-win/
|
Matrix Clock Is A Breadboarding Win
|
Mike Szczys
|
[
"clock hacks"
] |
[
"ATmega168",
"led",
"matrix",
"rtc"
] |
Normally when we feature
a clock made with a 32×8 LED matrix
we’d load up an image of the display for the banner photo. But this time around we were so impressed by [JB’s] breadboard work we had to use this image. We see an ATmega168, three buttons, three LEDs, a piezo buzzer, 32.768 kHz crystal, smoothing capacitor, and a few resistors; everything he needed to keep time and display it on the matrix module. If this is just going to sit on your bookshelf for a while it’s a great alternative to point-to-point soldering on a protoboard. Nice work fitting it all on there [JB].
| 23
| 23
|
[
{
"comment_id": "184173",
"author": "Luke",
"timestamp": "2010-09-22T16:30:53",
"content": "Damn. That’s packed in there pretty good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184174",
"author": "svofski",
"timestamp": "2010-09-22T16:31:05",
"content": "A clock crystal is typically 32768 Hz.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184177",
"author": "mowcius",
"timestamp": "2010-09-22T16:39:14",
"content": "Well the website says it’s 32678Hz :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184178",
"author": "jh",
"timestamp": "2010-09-22T16:39:38",
"content": "it is 32k…“RTC timer interrupt triggered via external crystal at 32.678kHz.”typo there Mike",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184186",
"author": "steaky",
"timestamp": "2010-09-22T16:57:48",
"content": "Surprised to see that the crystal doesnt need any caps – might just be a feature of atmel chips tho (I am more of a PIC man myself).Also was going to point out the 32768hz typo, but everyone else has it covered",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184193",
"author": "naturetm",
"timestamp": "2010-09-22T17:07:07",
"content": "Sure looks a lot nicer than any breadboard I’ve made. Looking at those switches, he must be setting the pins next to the switch input pins high or low, and using internal pull-ups or pull-downs on the inputs since I see no connections on the switches other than the chip. New idea to me, clever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184194",
"author": "Brennan",
"timestamp": "2010-09-22T17:07:08",
"content": "Good job with the breadboard, I always like it when jumper wires are sized correctly and used so that they are straight and not looped or tangled. It makes the whole thing so much more tidy. In one of my circuits classes at the Uni we were actually graded on neatness of our breadboards and our prof was really picky about stuff like that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184198",
"author": "Eric",
"timestamp": "2010-09-22T17:13:35",
"content": "Where’d he get those nifty breadboard jumper wires with the attached ends?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184199",
"author": "Scott",
"timestamp": "2010-09-22T17:17:15",
"content": "@steaky – while the datasheet likely suggests crystals are required to be capacitively coupled to ground, in my experience it’s not needed for the oscillator to function. Note that I say “function”, not “function well”. In theory, those capacitors ensure that the oscillator begins, keeps oscillating, and oscillates stably. Since this is a clock, stable clock is important, so there probably should be capacitors. HOWEVER, this is breadboarded, and those parallel rails have their own capacitance and even inductance approaching higher frequencies. Always remember this about breadboards!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184200",
"author": "naturetm",
"timestamp": "2010-09-22T17:20:35",
"content": "@EricSparkfun has those jumpers. If you have an option between regular and premium, get premium. I had the regular ones, and there have been several occasions where I spent a lot of time debugging, and once even junking a piece of hardware, only to find that the problem was a broken (but visually ok) jumper wire. I personally just use solid core wire and strip the ends. Much cheaper and not too big of a hassle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184205",
"author": "KC8RWR",
"timestamp": "2010-09-22T17:25:01",
"content": "This is very pretty but don’t trimmed leads on a breadboard kind of defeat the purpose? I know when I build on a breadboard it’s because it’s meant to be temporary. After using a breadboard I either move the components to a PC or perf board where I may need different lead lengths or they go back to the bins for re-use.I use my breadboard jumpers only on breadboards so those are always for re-use. I do hate curving them around though. I’ve thought of cutting some of the ones in my collection just to have a greater variety of lengths but I can’t imagine actually cutting them to fit specific projects. I would think that would reduce one’s stock of jumpers to a random collection of small wire bits.I’m not trying to be critical, I’m actually interested in hearing other’s opinions on this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184220",
"author": "Mike Szczys",
"timestamp": "2010-09-22T18:02:12",
"content": "@Svofski, Mowcius, and JH: Yep, slip of the finger, fixed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184221",
"author": "Addidis",
"timestamp": "2010-09-22T18:02:49",
"content": "It took me a minute to figure out how he had those switches on there. I think any one can look at that for a minute and find something to admire.I am also (usually) totally OCD about my breadboards being neat. Unless im low on jumpers.Im actually trying new jumpers from ebay. 500 jumpers 5 breadboards for 20$. Kinda unsure how I will like the giant loopy wire method. Ive always been really partial to the little bent wires.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184237",
"author": "JB",
"timestamp": "2010-09-22T18:30:51",
"content": "Thanks for posting this! I was surprised to see it here so fast.Yup, it’s 32.768kHz. I haven’t added caps yet, but still looking at how the time is deviating against my benchmark clock (linux server w/ NTP). It seemed to be accurate enough for now, but I might be adding 35-60pF’s later on.. (not quite sure what the value should be).@naturetmYep, the interrupt pins are on high’s and the adjacent pins are pulled low to provide the “drain” when the buttons are pushed.Thanks all for the feedback",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184261",
"author": "Brennan",
"timestamp": "2010-09-22T19:00:31",
"content": "@KC8RWREvery jumper wire kit I know of has a variety of different sized wires (color-coded). So you simply have to spend a little bit of time using the right size of jumper wire to get from point A to point B, no cutting necessary in most cases.@EricThe technical name for those is simply “reinforced jumper wires” and most electronics hobby shops will have them. They are usually much more expensive but pretty handy for prototyping. I have never had a problem with a bad jumper wire like the other poster did.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184312",
"author": "svofski",
"timestamp": "2010-09-22T21:08:44",
"content": "@JB: the capacitance of the wires and breadboard busses is probably much higher than recommended load capacitance of your crystal :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184314",
"author": "simpleavr",
"timestamp": "2010-09-22T21:15:51",
"content": "I love seeing mini-breadboard projects.if you enjoy complete projects on a mini breadboard, take a look on one of my creation. One 8×8 matrix clock on top of a tiny2313 (3 or 4 components only), just trying to show the possibilities.http://www.simpleavr.com/_/rsrc/1283282408157/AVR/avr_mclock.jpgI have not finish the project documentation yet, but intended to do so.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184376",
"author": "Tim",
"timestamp": "2010-09-23T00:08:58",
"content": "No decoupling caps on the regulator? I always thought they were a must – nice to know one can do without these in a pinch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184391",
"author": "gyro_john",
"timestamp": "2010-09-23T00:46:02",
"content": "@KC8RWR:When I’m breadboarding something, it’s all about hook it up fast, with some attention to grouping components reasonably, keeping noisy signals away from one another and zero attention paid to making the wires look pretty. That’s for if I go on to make a circuit board.In fact I try to keep them all loopy 3-dimensionally far away from each other to reduce capacitive coupling.What I like to use for breadboarding wire is a scrap of garbaged multi-line phone telephone cable. I strip it out and have a variety of different coloured solid copper wires which I can then cut to any length. I collect a few which I’ve pre-bent to .1″ apart, .2, .3, .4 and after that I pretty much go into airborne loops.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184443",
"author": "simpleavr",
"timestamp": "2010-09-23T03:49:22",
"content": "@KC8RWR i use cat5 network cables to breadboard, a segment from a dollar shop last for a year. also as they are thinner (like phone cables) and u can fit two in a single tie point.usually i would breadboard before drawing the schematic and will code the MCU around the layout. fritzing is the ideal software to do this.http://fritzing.org/@tim i tend to neglect the 0.1uF when the project is pure digital and battery powered. when adc is needed, i would put more than one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184445",
"author": "JB",
"timestamp": "2010-09-23T03:56:41",
"content": "Pretty tight proto-board.(no, I’m not the author :P )",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184575",
"author": "juice",
"timestamp": "2010-09-23T12:22:35",
"content": "Using breadboard for a microcontroller project is asking for trouble.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184589",
"author": "fluidic",
"timestamp": "2010-09-23T13:11:43",
"content": "Win, or fail?It works, but normally you don’t want to get any more compact on a breadboard than you’re forced to. Space optimization is for PCBs. On a breadboard, the priority is being able to make changes with a minimum of fuss. The scope of this circuit isn’t large enough to have this bloom into a major problem, but this is not a good practice to get in to.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.669898
|
||
https://hackaday.com/2010/09/22/audio-ads-in-newspapers/
|
Audio Ads In Newspapers?
|
Caleb Kraft
|
[
"digital audio hacks"
] |
[
"newspaper"
] |
Oh no, lets hope this little gimmick doesn’t catch on. Volkswagen has put out an advertisement in an Indian newspaper that
plays an audio file when you unfold the paper
. This appears to work much like those greeting cards that play a song when you open them. There’s a sensor that detects the newspaper opening, probably just a piece of plastic or paper that slides out from between two contacts. This allows power to the circuit and the audio file is played. Can you imagine how obnoxious this could be? Especially if your newspaper was riddled with these and
those E-paper screens
. Then again, that speaker looks like massive overkill for this kind of thing and might be a decent piece electronics to keep in the reuse bin. You can see a video of the newspaper after the break.
[youtube=http://www.youtube.com/watch?v=lOw-SWlL2ZE]
| 33
| 33
|
[
{
"comment_id": "184118",
"author": "MigSantiago",
"timestamp": "2010-09-22T13:58:58",
"content": "They should add a Mute button… and make a smaller device :sIf you guys ever get one of those audio devices, take it apart and show us how they work ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184119",
"author": "Tom",
"timestamp": "2010-09-22T13:59:02",
"content": "It’s like something out of the Futurama universe.It’s beginning!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184120",
"author": "mosheen",
"timestamp": "2010-09-22T14:05:55",
"content": "Great idea. Like there isn’t enough electronic waste in landfills right now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184122",
"author": "Eric",
"timestamp": "2010-09-22T14:09:18",
"content": "Just another reason to cancel your newspaper subscriptions (if you haven’t already).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184130",
"author": "cpmike",
"timestamp": "2010-09-22T14:14:05",
"content": "So that stupid thing starts talking on repeat as soon as the paper is folded flat? How are you supposed to read the rest of it without this thing bothering the entire room? IMO this particular ad was a BAD idea. Though it would definitely be something that made it into the parts bin…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184133",
"author": "Peter",
"timestamp": "2010-09-22T14:22:22",
"content": "That speaker doesnt look that bad for the size",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184134",
"author": "osgeld",
"timestamp": "2010-09-22T14:23:43",
"content": "PHHTaudio is so 1990 they have video ads nowhttp://www.desmoinesregister.com/article/20100821/BUSINESS/8210318/Meredith-magazine-puts-video-ad-in-select-copies",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184139",
"author": "tropicwheels",
"timestamp": "2010-09-22T14:35:34",
"content": "I bagged one of those. Would be nice if they used a standard chip so you could reprogram it to say what you want. You can’t get to whatever is under the (epoxy?) blob (or can you?). Still, free speaker WOOHOO.And yes, it was really annoying reading the newspaper. (Although, it was only the magazine section…but still, annoying while reading morning comics)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184140",
"author": "Brennan",
"timestamp": "2010-09-22T14:36:53",
"content": "Osgeld, do you live in Iowa by any chance? (Iowan here)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184142",
"author": "osgeld",
"timestamp": "2010-09-22T14:48:52",
"content": "no",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184146",
"author": "space",
"timestamp": "2010-09-22T15:02:30",
"content": "cellulose is piezoelectric.specially printed pages with flat step up transformer and flat battery could truly bring audio ads to the newspapers.a drop or two of salty water could block the ads:D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184147",
"author": "Luke",
"timestamp": "2010-09-22T15:03:55",
"content": "That reminds me of an electronic ad that Chevron used for a while. When you’d start pumping gas this sign above the pump would start talking to you about gas cards, credit cards, and stuff that was on sale. Needless to say I stopped buying gas there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184149",
"author": "HARaaM",
"timestamp": "2010-09-22T15:13:49",
"content": "But . . can it listen?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184155",
"author": "smoked",
"timestamp": "2010-09-22T15:36:32",
"content": "“There’s a sensor that detects the newspaper opening, probably just a piece of plastic or paper that slides out from between two contacts”No, its much more advanced. Its an LDR! lol ;)(Yes, I get this newspaper)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184159",
"author": "Henrik Pedersen",
"timestamp": "2010-09-22T15:49:35",
"content": "But…. Will it blend?Sorry couldn’t resist.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184163",
"author": "Smokingman",
"timestamp": "2010-09-22T16:01:47",
"content": "Wait…..What’s a newspaper?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184175",
"author": "svofski",
"timestamp": "2010-09-22T16:33:49",
"content": "@Smokingman: some people subscribe to toilet paper. It comes with print then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184187",
"author": "Rollyn01",
"timestamp": "2010-09-22T16:59:04",
"content": "@svofskiI just buy the Sunday edition for the coupons. At least I get some kind of value out of it.@TropicwheelsIIRC the shack carries a kit for 2 or 3 buck with the voice recording. You can get your own without having to deal with the b.s. that is printed toilet paper. lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184212",
"author": "jeditalian",
"timestamp": "2010-09-22T17:41:12",
"content": "good thing i always run over my newspaper before i read it. not long now until we see the news story about the person who swapped out the speaker for some C4, well more likely about the person who was going to read the newspaper and then “lost face”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184213",
"author": "jeditalian",
"timestamp": "2010-09-22T17:46:09",
"content": "what’s wrong with paper? i was thinking about signing up for loads of junk mail and saving it up lol recycle it, build a house out of junkmail or something. too bad the spam from my inbox isn’t physical junkmail because i would build a mothafuckin island and a boat and a castle and a great wall..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184218",
"author": "signal7",
"timestamp": "2010-09-22T17:55:28",
"content": "Despite what the other comments have said, I’m amazed that no one complains about websites doing the same exact thing! We’ve been living with this nuisance for years now, but there’s an uprising when it takes physical form? Fer crying out loud, we should have been sending the message that this crap is annoying for the last 10 years!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184310",
"author": "vonskippy",
"timestamp": "2010-09-22T21:05:50",
"content": "@signal7It’s called Firefox with Adblock plus and noscript – might want to look into it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184330",
"author": "sexiewasd",
"timestamp": "2010-09-22T21:58:38",
"content": "How will this affect my dog when he is peeing on it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184342",
"author": "Branno",
"timestamp": "2010-09-22T22:34:03",
"content": "@signal7I think the reason people are annoyed that the newspaper did it and don’t care about web ads is that they paid for the newspaper, but not to view the online content.It’s also easier to mute your computer speakers :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184372",
"author": "Travis",
"timestamp": "2010-09-23T00:01:30",
"content": "What about the papers that do not sell ? The units kind of go to waste.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184379",
"author": "Whatnot",
"timestamp": "2010-09-23T00:14:35",
"content": "It’s just a one-time gimmick, nothing to worry about.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184418",
"author": "Ego Viator",
"timestamp": "2010-09-23T02:24:12",
"content": "Here in Canada, just the other day on the way back home, I picked up one of those free newspapers and guess what… Audio ads. I manage to scare my dog and entertain my kid for the entire evening.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184426",
"author": "jaded",
"timestamp": "2010-09-23T02:50:04",
"content": "Despite the slams here, I think it was damn effective advertising. They got READERS to video the thing and post it on the web, and here I am halfway around the globe, watching their commercial. That’s viral marketing at its finest (from a marketing point of view, of course.)But I’m still not buying a Volkswagen. If I can ever convince myself to give up my utilitarian pickup truck, the next stop is the BMW dealership.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184434",
"author": "sanjeev",
"timestamp": "2010-09-23T03:16:39",
"content": "I also collected 3 of those. Plan to use them for s a project. These have a LDR so when light falls on the LDR the sound starts playing. If you close the newspaper again, the LDR goes in dark and sound stops. Cool idea but very bad for environment. Millions of these devices will be in bin in next few days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184470",
"author": "Anuj",
"timestamp": "2010-09-23T05:26:15",
"content": "It was a simple light detector, and 2 cells powering the circuit, but a pretty nice and effective way for marketing.Had opened the newspaper and torn this thing out to examine what it was.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184523",
"author": "elektrophreak",
"timestamp": "2010-09-23T10:16:21",
"content": "too bad its the unknown “black spot” chip…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184556",
"author": "PocketBrain",
"timestamp": "2010-09-23T11:36:51",
"content": "Don’t forget, you get two button-cell batteries and their holders for your next micro-power project.Also, I have never seen more people complain about getting something for free.And the unit price of newspapers is heavily supplemented with advertising. The price you pay is a token amount that discourages you getting multiple subscriptions and, say, building a house out of them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185327",
"author": "projectbluebook",
"timestamp": "2010-09-24T22:54:32",
"content": "hehe…yes this is very wasteful, wish they had used a re-recordable chip and then at least people could recycle them as message recorders or something..on the flip side, free button cells, speakers and other goodies.I did wonder why they don’t just use a piezo speaker and a microphone to “feed back” the audio and fine tune the output for the speaker being used so it also doubles as a recorder after N playbacks.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.740771
|
||
https://hackaday.com/2010/09/21/small-and-simple-fm-radio/
|
Small And Simple FM Radio
|
Mike Szczys
|
[
"Radio Hacks"
] |
[
"ar1010",
"attiny45",
"fm",
"i2c",
"radio"
] |
[gpsKlaus]
built this little FM radio
(
translated
) based on the AR1010 IC. That chip is controlled via I2C by an ATtiny45 microcontroller. His tuning implementation relies on presetting 16 stations in the firmware and selecting them with the white potentiometer.
The
FM chip came on a breakout board from SparkFun
. Not bad at around $15 as it includes the crystal, some caps and a few resistors, and you don’t have to try and solder to the fine pitched pads on that minuscule package. We’re a little unsure of the features included in the part as the datasheet is lacking in detail and
the reference datasheet
that SparkFun includes in the description is obviously for a much more full-featured chip. Still, this would be a fun thing to play around with if you’ve grown tired of blinking LEDs.
If you don’t want to let an integrated circuit do all the heavy lifting
try this post
for a guide on building your own radio tuner.
| 23
| 23
|
[
{
"comment_id": "183881",
"author": "Nonya-Biz",
"timestamp": "2010-09-21T20:29:54",
"content": "i planed on using one of these, and a tda1515bq to make a radio for my car clubs dragster. it would be lighter than a regular stereo. never got around to programing a micro controller, or finding a good lcd.these are on small boards in practically every mp3 player with a radio.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183891",
"author": "toodlestech",
"timestamp": "2010-09-21T20:56:17",
"content": "I’m confused why you would want a potentiometer as a way to toggle through digital presets for analog stations when you could skip the micro controller altogether and be able to receive and switch through all Fm stations with just a potentiometer?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183892",
"author": "jeditalian",
"timestamp": "2010-09-21T20:57:26",
"content": "how about a small AM radio, i can get a small FM radio at dollartree lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183894",
"author": "jeditalian",
"timestamp": "2010-09-21T21:01:20",
"content": "this one does look higher quality lol i could buy 15 dollar tree radios and what would i have? like 45 coils of wire, 15 leds, 15 headphone jacks.. and in a month or so, 15 broken radios",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183895",
"author": "Will",
"timestamp": "2010-09-21T21:02:00",
"content": "This is a digital radio, and requires a micro-controller to change stations.the programming guide is hard to find:http://rtr.ca/fmradio/ar1000F_progguide-0.81.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183900",
"author": "nes",
"timestamp": "2010-09-21T21:22:03",
"content": "@Nonya-Biz: I was going to say the same thing. Even the lowliest $5 no-brand MP3 player seems to have the exact same little green PCB inside and though its surface mount, the 10 pads are large and it’s not hard to desolder it cleanly.@Will: Thanks for posting the link to the programming guide. I was going to sniff the bus in an MP3 player to try and work out the commands, but this is cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183923",
"author": "biozz",
"timestamp": "2010-09-21T22:39:49",
"content": "why no large and complicated fm radio? D:",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183936",
"author": "Sanjay in Pune",
"timestamp": "2010-09-21T23:12:40",
"content": "The AR1010 is a Taiwanese clone of the Philips (nxp) TEA5767.No reason why you would want to use the clone when the original is still in production.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183959",
"author": "vonskippy",
"timestamp": "2010-09-22T01:23:36",
"content": "I can’t believe people still listen to the radio (FM or AM). It went from amusing to terminally nauseating decades ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183963",
"author": "Whatnot",
"timestamp": "2010-09-22T01:47:05",
"content": "Is it stereo? Since I understand all those $2 FM radios are mono sound, and the reason to make one yourself might be to get a small stereo version.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183964",
"author": "fluidic",
"timestamp": "2010-09-22T01:48:33",
"content": "Never buy from Sparkfun what you can desolder for under half price.@vonskippyRadio, not just for listening to. Transmitters aren’t terribly hard to build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183983",
"author": "D_",
"timestamp": "2010-09-22T03:33:16",
"content": "Im the event the microcontroller would result in a receiver that had station presents, along with conventional tuninng, and digital read out, I could be tempted to duplicate the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184006",
"author": "cde",
"timestamp": "2010-09-22T06:43:11",
"content": "USB 2 port mini hub controller into 1) A usb sound card (either retail or a ti usb sound controller of the PCM270x or PCM290x series (freesamples!) and 2) a usb micro programmed as an serial-i2c controller (or usb-serial adapter to micro acting as serial-i2c)Small, relatively cheap and feature packed usb radio!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184035",
"author": "strider_mt2k",
"timestamp": "2010-09-22T08:55:09",
"content": "I love radio hacks.Nowadays there’s only one FM station I’d want to listen to, so a little custom receiver just for that station might be interesting to put together.Hmm, optimizing for one station means one could tighten the tuning up more too.Neat!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184103",
"author": "urlax",
"timestamp": "2010-09-22T12:51:59",
"content": "CDE,you want this one:http://www.silabs.com/FMTuners/brando.com.hk sells one, it’s exactly the same design, even works with the silabs software.had one connected to my carputer, had perfect reception.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184124",
"author": "lwatcdr",
"timestamp": "2010-09-22T14:11:52",
"content": "@cdeYou could just use a single USB micro with and a2d chip like this onehttp://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en544175It also use SPI so you could use SPI for both or get an USB micro that has I2c and SPI and use the i2c for the control and SPI for the data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184136",
"author": "Joel Aud",
"timestamp": "2010-09-22T14:27:06",
"content": "…simple FM Receiver, convert it to sub-carrier and transmit data on the sub-carrier and you have a cheap point to multipoint one way distribution architecture that could replace grinding up trees smearing them with ink and throwing them at people’s houses.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184151",
"author": "lwatcdr",
"timestamp": "2010-09-22T15:20:20",
"content": "Dang it can not get NOAA weather radio! That sucks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184191",
"author": "Doc Oct",
"timestamp": "2010-09-22T17:04:31",
"content": "I wish there was a chip like this available for outside the FM broadcast band. I’d love to find some that could cover 136-512mhz, n-fm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184235",
"author": "aaa",
"timestamp": "2010-09-22T18:29:05",
"content": "You can find such boards with complete stereo I2C-controlled FM tuner in popular, cheap chineese MP3 players in form of pendrive. Sensitivity isn’t very good, but it is small, low power and convenient to control (with uC)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184516",
"author": "Daine Mamacos",
"timestamp": "2010-09-23T09:06:48",
"content": "I did a project with this part some time ago. Incidentally I opened the source, and it can be found on my website if anyone is interested.http://www.reverseorder.net/home/projects/radio",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188050",
"author": "manish",
"timestamp": "2010-09-30T06:21:59",
"content": "i need source code for my laptop",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3534542",
"author": "Utkarsh Verma",
"timestamp": "2017-04-20T14:34:15",
"content": "The reception of this module is awful, any help on improving it?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.926379
|
||
https://hackaday.com/2010/09/21/discussing-pulse-width-modulation/
|
Discussing Pulse-Width Modulation
|
Mike Szczys
|
[
"LED Hacks"
] |
[
"flicker",
"parasitic",
"power loss",
"pulse-width modulation",
"pwm"
] |
[Michael Kleinigger] posted
a lengthy discussion on Pulse-Width Modulation
that goes beyond the traditional beginner tutorial. He starts a bit of background info on PWM and a tip about using a camera to judge frequency and duty cycle of LEDs. From there it’s down the rabbit hole with some testing of power-loss versus frequency.
When you change from frequencies of 50 Hz to 1 MHz how does the parasitic power loss from switching affect the overall efficiency of the circuit? It turns out there’s a rather large amount of loss at the highest level, around 1.5 mW. The greatest balance of low power loss and elimination of flicker seems to be right in the 300-500 Hz range.
| 53
| 50
|
[
{
"comment_id": "183843",
"author": "Frank",
"timestamp": "2010-09-21T19:09:27",
"content": "Hi there, I think the link above is missing.frank",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183844",
"author": "CampGareth",
"timestamp": "2010-09-21T19:10:26",
"content": "Uh, is it just me or that link just “http:”?Still, awesome to see this getting covered, I’m gonna need to mess around with it soon-ish for various projects.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183845",
"author": "Jin",
"timestamp": "2010-09-21T19:11:38",
"content": "Link missing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183848",
"author": "c010n",
"timestamp": "2010-09-21T19:17:54",
"content": "http://grieg.gotdns.com/blog/?p=188",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183849",
"author": "Robin Chan",
"timestamp": "2010-09-21T19:20:04",
"content": "No me too. links broke. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183851",
"author": "nilb",
"timestamp": "2010-09-21T19:21:19",
"content": "Wrong link…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183852",
"author": "Gustibus",
"timestamp": "2010-09-21T19:21:59",
"content": "Not just you – hopefully fixed soon, I’d like to read this :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183853",
"author": "Scott Jaeger",
"timestamp": "2010-09-21T19:22:01",
"content": "Tryhttp://grieg.gotdns.com/blog/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183858",
"author": "Satiagraha",
"timestamp": "2010-09-21T19:36:14",
"content": "You may get a wonderful efficiency at 300-500Hz, but you may also get significant side-effects such as audible noise when you drive anything bigger than an LED. For this reason, it is sometimes better to run PWM at frequencies higher than 20kHz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183867",
"author": "Haku",
"timestamp": "2010-09-21T19:47:51",
"content": "@Satiagraha, definitely if you’re powering motors through PWM, I made an ESC using a Picaxe 08m and found that setting the PWM frequency to 40khz meant the motor didn’t make that awful whine like almost all ESC’s I’ve heard do when the motor is only being driven slowly. Not sure if the h-bridge I used was meant to take such a high PWM rate but it works fine.On the other hand you can purposely make the motor whine at different frequencies as an audible indicator of a setting or something, much like those people who have made played tunes on their DIY CNC’s etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183870",
"author": "M4CGYV3R",
"timestamp": "2010-09-21T19:56:20",
"content": "PWM makes the best music…I ♥ LFOs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183871",
"author": "cornelius",
"timestamp": "2010-09-21T20:07:48",
"content": "Picking a transistor with lower gate charge will also help to reduce switching losses.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183890",
"author": "Circuitmage",
"timestamp": "2010-09-21T20:54:36",
"content": "Yeah link no workey for me either.PWM depends on duty cycle and frequency, so maybe a nice chart comparing the two would be good to have (???). I dunno….methinks this has to be played with for each application, but some handy charts for LEDs, 5V motors, and other commonly driven things might be nice…As for the sound issue…yeah…sometimes it’s nice to actually hear your circuit working.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183905",
"author": "osgeld",
"timestamp": "2010-09-21T21:39:18",
"content": "its a good read (if you can find it)Scott Jaeger’s link works",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183906",
"author": "Aaron",
"timestamp": "2010-09-21T21:51:04",
"content": "500Hz… Depends on what you are driving. I can see an led flickering at more than 2KHz as I was curious one day after being irritated by the light on my xbox 360 controller (which happens to flicker at 2KHz 64% duty cycle). Does any one else notice the flickering in the new LED brake lights on modern cars?!? This drives me nuts when I am driving at night. ~Aaron",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183911",
"author": "Mike",
"timestamp": "2010-09-21T22:08:19",
"content": "@Aaron – Whoa, you can see 2kHz? Cool…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183916",
"author": "Mike",
"timestamp": "2010-09-21T22:22:13",
"content": "Aaron – I too can see the brake lights on LED using PWM… it does get annoying. If you’re like me, I can also tell when a DLP projection screen/ tv is being used, as the white objects look like a rainbow due to the color wheel… it gets pretty hard to get used to…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183920",
"author": "Erik Johnson",
"timestamp": "2010-09-21T22:28:40",
"content": "@Aron, the new brake lights drive me batty too. But they are more in the 100s of Hz range… 2KHz is mighty fast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183932",
"author": "Travis",
"timestamp": "2010-09-21T22:56:19",
"content": "http://en.wikipedia.org/wiki/Flicker_fusion_thresholdMost people can’t detect flicker at 100 Hz.I propose a simple A B test to see how high you can detect the frequency.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183943",
"author": "Shadyman",
"timestamp": "2010-09-22T00:06:03",
"content": "Whoa, double capacitor all the way! What does it mean?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183945",
"author": "andrew",
"timestamp": "2010-09-22T00:31:11",
"content": "@Travis, agreed.If people here claim they can see flicker above 100hz, the flicker they’re actually seeing is probably due to noise and under 100hz.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183952",
"author": "alankilian",
"timestamp": "2010-09-22T00:47:46",
"content": "All that 2KHz blinkin’ LED talk reminded me that our little group of goofoffs had an LED blinking at 5,000,000 Hz in 2001.Scope shots are here:http://www.sampson-jeff.com/rsoh/010406/We had a real good time fooling around with them. Very instructive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183960",
"author": "Mike",
"timestamp": "2010-09-22T01:24:19",
"content": "@Travis and andrew,Yes, I’ve read in places that 60Hz is the cutoff for most people. And I think that’s about right, assuming you’re starting directly at the LED without any relative motion. However, when you start to move your eyes across the LED or if the LED is moving, you may notice the flicker, maybe even up to 2kHz depending on the speed of the motion. This is why POV displays work.@alankilianSpeaking of 5Mhz modulations, I’ve been hearing lately about research into high-speed data transmission using ambient LED lighting. In the future, when incandescents and fluorescents are replaced by high-intensity LEDs, your laptop might actually connect to the internet via the lights in your room; they’ll be doing double duty – lighting the room and transmitting data via high-frequency modulation. Pretty cool, eh?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183976",
"author": "Cynyr",
"timestamp": "2010-09-22T02:53:40",
"content": "@travis,When the flickering object is or is not moving? what is the difference between the flickering objects brightness and ambient? I’m willing to bet you can see 2kHz when it’s moving at night. Not moving in the sun, 20Hz might be enough. Human eyes are marvelously complex beasts, the whole 24fps, 30fps, 60fps thing is mostly a myth and highly dependent on individual, and conditions. A bright white pulse in a dark room for example is detectable at far more than 1/60th of a second.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183981",
"author": "Andrew",
"timestamp": "2010-09-22T03:30:21",
"content": "the 360 controller LEDs don’t flicker, they’re either always on or always off. The 360 ROL does flicker, and it’s a hell of a lot slower than 2kHz.There is no way you can see a 2kHz flicker on a stationary light. hell, I don’t think I’d believe you if you said 200Hz.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183994",
"author": "andar_b",
"timestamp": "2010-09-22T04:56:00",
"content": "I hate the flicker my old CRT monitors get at 85Hz, but I can’t see anything bothersome at 100Hz or above.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184001",
"author": "emelya",
"timestamp": "2010-09-22T06:10:47",
"content": "CRT monitors have an vestigial glow but LED, as I believe don’t. Then LED flickering might be visible in higher frequencies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184003",
"author": "Smerky",
"timestamp": "2010-09-22T06:25:29",
"content": "Broken link is broken! :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184061",
"author": "DarkFader",
"timestamp": "2010-09-22T09:03:03",
"content": "and don’t put all your heavy-load PWM channels on the same phase unintentionally.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184070",
"author": "chippy",
"timestamp": "2010-09-22T09:49:44",
"content": "Good article MORE!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184088",
"author": "Mike Barber",
"timestamp": "2010-09-22T10:47:27",
"content": "Efficiencies from protoboards shouldn’t be related to circuit boards. Protoboards are full of capacitance. Also, lead inductance can come into play with the through-hole vs surface mount components.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184090",
"author": "lurker",
"timestamp": "2010-09-22T11:15:03",
"content": "Haven’t read the article yet, but the flicker talk is interesting. Perhaps he’s seeing nulls? I remember the lights in school bugging the hell out of me – between the tv’s, crt’s and 8-foot flourescents, I could see the bulbs flicker at 30hz when the tv was on and the crt flicker if the tv was on, provided both were in my field of view – it’s like the brain locks onto the highest frequency and lets you see the nulls in the lower one… Just a theory, I never really looked into it – Might be an interesting field of research, though…I’m sure I’m not the only one that’s ever noticed this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184112",
"author": "Circuitmage",
"timestamp": "2010-09-22T13:30:37",
"content": "@allyouguystalkingaboutLEDflickerJust like the old LED clocks, you can kinda tell when things are pulsed, even over 60hz.One trick for detecting this is to motorboat your lips. The displays will vibrate…:)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184123",
"author": "Mike",
"timestamp": "2010-09-22T14:11:04",
"content": "@lurker – very interesting stuff, I had no idea there could be what sound like a sort of resonance between different flickering sources.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184126",
"author": "Dom",
"timestamp": "2010-09-22T14:12:35",
"content": "Hey can anybody tell me the name of the white thing this guy has put his components",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184145",
"author": "Mike",
"timestamp": "2010-09-22T15:00:00",
"content": "@DomIf you mean the white supercapacitor, it’s made by NessCap and can be found here:http://parts.digikey.com/1/parts/90426-capacitor-ultra-2-5f-5-0v-radial-emhsr-0002c5-005r0.htmlIf you’re talking about the white LED, it’s made by Cree and can be found here:http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=C513A-WSN-CV0Y0151-ND",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184152",
"author": "Dom",
"timestamp": "2010-09-22T15:22:51",
"content": "@mikeThank you for the info this is helpful but i mean the base bit, with the red and blue lines on itthat all his things are stood in/on i want to start out and im looking for somewhere to buy one from but need the name first lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184154",
"author": "Karl",
"timestamp": "2010-09-22T15:33:34",
"content": "Dom:It’s a modular IC breadboard socket – Radioshack #276-003 as an example.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184157",
"author": "Mike",
"timestamp": "2010-09-22T15:44:16",
"content": "Lol, right, the protoboard. Thanks Karl!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184158",
"author": "Dom",
"timestamp": "2010-09-22T15:48:28",
"content": "@Karl & Mikeawsome thank you very much!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184172",
"author": "Johny",
"timestamp": "2010-09-22T16:28:22",
"content": "Now you all know you are not allowed to use PWM dimming on LEDs because you may get your ass sued by Color Kinetics. They own a patent on this shit and are quite liberal when it comes to handing out the lawsuits.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184262",
"author": "Karl",
"timestamp": "2010-09-22T19:00:33",
"content": "Dom:For wire, don’t bother with the store bought lengths – the wire from a piece of cat 3/4/5 cable works just fine – I’ve used short lengths from telco 50 conductor cable, and it’s nice because each wire has its own color combination.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184596",
"author": "stephen",
"timestamp": "2010-09-23T13:50:43",
"content": "@ johnyim no lawyer but last i checked unless your building their circuit they cant sue or if they do you can get it thrown out of court. lets face it you cant patent the action of pwm but you can patent the circuit. just build a different one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184652",
"author": "joe2",
"timestamp": "2010-09-23T17:45:06",
"content": "stephen, i wouldn’t be so sure about the fairness of our legal system…. as it stands now, a good lawyer can turn the most unfair thing into a prosecution, as long it has a small amount of grey area.combine that with the fact that our justice system basically is a matter of stacking money on the scales of justice, and suddenly something as stupid and unfair as patenting the action of pwm suddenly becomes very possible.monsanto patented THE PIG, as well as corn. absolutely unfair, unjust, and in no way should be legal, but our justice system let it happen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185296",
"author": "Adam",
"timestamp": "2010-09-24T20:51:45",
"content": "The discussion of power consumption and frequencies reminds me of Tesla’s work with high frequencies",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187328",
"author": "Alex",
"timestamp": "2010-09-28T18:08:59",
"content": "That’s a weird cap…the double one in the corner.I’ve never seen one before.And by the looks of it, it ain’t home-made…If anyone knows more about it, post a reply",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187713",
"author": "Mike",
"timestamp": "2010-09-29T14:45:39",
"content": "@AlexThat’s a 5V, 2.5F supercapacitor from NessCap:http://parts.digikey.com/1/parts/90426-capacitor-ultra-2-5f-5-0v-radial-emhsr-0002c5-005r0.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188271",
"author": "Alex",
"timestamp": "2010-09-30T18:37:34",
"content": "thanks mike…another cool one i’ve seen on digikey was a 400 Farad 2.7 volt cap…That’s some serious storing power.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188348",
"author": "Mike",
"timestamp": "2010-09-30T20:41:43",
"content": "Whoa, yea 400F is pretty impressive… also incredibly expensive I’m sure. Looks like the largest one DK has in stock now is 4000F, 2.5V, for a mere $250. I want.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214633",
"author": "Joe",
"timestamp": "2010-11-18T19:53:14",
"content": "The operating frequency of PWM (pulse width modulation) for some LED’s is indeed 2 to 3 KHZ’s and is a very real affect on some viewers! It is known as flicker fusion or critical fusion frequency and does not have the same effect on all viewers. Appropriate rigger for the consideration of human factors was not performed.mountainvision@hotmail.com",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.060751
|
||
https://hackaday.com/2010/09/24/full-featured-avr-time-lapse/
|
Full-featured AVR Time-lapse
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"ATmega168",
"AVR",
"hd44780",
"rotary encoder",
"time-lapse"
] |
This
time-lapse photo trigger
was built [Lukasz Goralczyk]. It is controlled by an ATmega168 and we were surprised to read that it uses about 12k of code. Curious about what takes up that much space, we were impressed to see all the features demonstrated in the video after the break. The small device, running on two AA batteries, has a well-designed user interface displayed on a 3V character LCD that is navigated with a clickable rotary encoder.
It isn’t
the smallest intervalometer we’ve ever seen
, but it deserves respect for the features packed into a diminutive form-factor.
[youtube=http://www.youtube.com/watch?v=PYXByBqI0XU]
[Thanks Michal]
| 11
| 11
|
[
{
"comment_id": "185151",
"author": "AS",
"timestamp": "2010-09-24T15:49:14",
"content": "Very nice. My biggest question with things like this is where to get the required plug to attach to the camera? For example many canon SLRs use a small 3 pin connector as shown here:http://tinyurl.com/26dld7x",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185174",
"author": "michael",
"timestamp": "2010-09-24T16:54:35",
"content": "2.5mm adapters sold for ipods etc work well… My astro photography consists of me taking an ipod adapater.. and just jamming it into my camera.. when you go too far.. it just shorts the contacts.. I set it for 30 second shutter and let it be!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185258",
"author": "Physics-Dude",
"timestamp": "2010-09-24T19:08:47",
"content": "What program can I use to combine all of the photos into a video file? I’m a Windows/Ubuntu user and don’t have Quicktime Pro.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185266",
"author": "Gben",
"timestamp": "2010-09-24T19:20:36",
"content": "Nice logic under the hood, the knob seems interesting, is it a pot and button at the same time or a stepped switch and knob ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185285",
"author": "Erik Johnson",
"timestamp": "2010-09-24T20:11:24",
"content": "@Physics-Dude VirtualDub will do this at a set frame rate, it will automatically import all the frames if they are numbered sequentially, e.g. IMG_0334.JPGIMG_0335.JPGIMG_0336.JPG…It has only rudimentary adjustments/filters, but gets the job done well.. for free and it runs under WINE as well",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185289",
"author": "Yen",
"timestamp": "2010-09-24T20:27:16",
"content": "@Physics-Dudeon Ubuntu, or Windows, you can also use ffmpeg to accomplish this.from ffmpeg’s man page:ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avithis will collect all images foo-000.jpeg through foo-999.jpeg, sequentially, into a video, at 12 frames per second.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185303",
"author": "Abbott",
"timestamp": "2010-09-24T21:08:15",
"content": "@GbenJudging from the ‘encoder’ on the PCB my guess would be a digital rotary encoder. useful things they are.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185319",
"author": "Maurice",
"timestamp": "2010-09-24T22:34:18",
"content": "I’ve got pinout diagrams for 7 of the more common types of camera plugs. I did this for my Camera Axe project, which also includes a timelapse mode, but if you only want timelapse this is a more focused approach.http://www.cameraaxe.com/wiki/index.php?title=CameraCables",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185320",
"author": "Physics-Dude",
"timestamp": "2010-09-24T22:38:25",
"content": "@Erik JohnsonI cant seem to import all frames in at once… I’m running VirtualDub in Windows XP",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185977",
"author": "Ulrich Lukas",
"timestamp": "2010-09-26T01:58:28",
"content": "Very decent stuff!I have not looked at the code yet, but using LGPL code from AVRFreaks.net (like tinymenu), I expect this to be a solid implementation.Thanks for sharing this, Lukasz!I hope I find the time to complete my own project, which is a similar user interface fora remote measuring device.Examples like this encourage me to share my ownresults, too!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186165",
"author": "Andrew Welker",
"timestamp": "2010-09-26T14:44:00",
"content": "I decided to help everybody out and post what I do to get ffmpeg to work on windows 7I use Infraview to process to files and name them image0001.jpg image0002.jpg and so on.Copy C:\\ffmpeg\\share to C:\\usr\\local so that your presets can be found at C:\\usr\\local\\share\\ffmpegThen i process it using this command linec:\\ffmpeg\\bin\\ffmpeg.exe -r 12 -i “C:\\path\\image%04d.jpg” -sameq -s hd1080 -vcodec libx264 -vpre hq -crf 25 c:\\OUTPUT.MP4",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,370.974943
|
||
https://hackaday.com/2010/09/23/youll-shoot-your-eye-out-another-coilgun/
|
You’ll Shoot Your Eye Out, Another Coilgun
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"1.25kj",
"coil",
"CoilGun",
"energy",
"gun",
"shot",
"single stage"
] |
All we needed to read was 4x 3900uF capacitor bank to know we had yet another decently sized
homemade coilgun
on our hands. And for the math buffs, that equates out to 1.25kJ of potential energy (efficiency kills it down to 37j of kinetic, but large numbers are more fun) which is more than enough to break skin; of course we recommend you just shoot old electronics rather than friends. On the more technical side, sure its only a single stage for now and we’ve seen some slightly more impressive
triple stage guns
, but it may just be more beautiful than our
previously featured coil pistol
. You guys be the judge. Catch a complete video after the jump of the internals and build process, skip ahead to 2:40 for the destruction.
[via
TheDailyWh.at
]
[youtube
http://www.youtube.com/watch?v=7LjnhhtHojM&feature=player_embedded#!%5D
| 41
| 38
|
[
{
"comment_id": "184773",
"author": "Brennan",
"timestamp": "2010-09-23T22:14:34",
"content": "3900 uF? That’s like, 3.9 mF!!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "746490",
"author": "shayne",
"timestamp": "2012-08-21T18:20:10",
"content": "no, its like, exactly 3.9mF",
"parent_id": "184773",
"depth": 2,
"replies": [
{
"comment_id": "783499",
"author": "CookieMonster",
"timestamp": "2012-09-13T22:23:53",
"content": "Really? You’re going to respond to something THAT old (and obviously a joke) with something THAT lame?Really cool coil gun, by the way. :)",
"parent_id": "746490",
"depth": 3,
"replies": [
{
"comment_id": "3360425",
"author": "Myrddin",
"timestamp": "2017-01-11T16:58:47",
"content": "So we should just deactivate the comments section after a few years? ;)",
"parent_id": "783499",
"depth": 4,
"replies": []
}
]
}
]
}
]
},
{
"comment_id": "184776",
"author": "Drew",
"timestamp": "2010-09-23T22:21:31",
"content": "Damn, that’s pretty.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184777",
"author": "macona",
"timestamp": "2010-09-23T22:22:46",
"content": "Neat, but a good slingshot has about as much damage capability as that does. I think I would have used a boost converter to charge though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184782",
"author": "jh",
"timestamp": "2010-09-23T22:35:23",
"content": "I wanna mount one to each front fender for use in traffic *evil grin*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184784",
"author": "strider_mt2k",
"timestamp": "2010-09-23T22:41:34",
"content": "shuts jaw manuallyTime to kick ass and chew bubble gum…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184787",
"author": "xeracy",
"timestamp": "2010-09-23T22:47:12",
"content": "Anyone see this on several other websites over the past week? Usually its gizmodo and other sites finding out about stuff from HaD, not the other way around. Maybe i just spend too much time online…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184788",
"author": "Zmaster",
"timestamp": "2010-09-23T22:48:10",
"content": "Awesome building!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184803",
"author": "Torvaun",
"timestamp": "2010-09-24T00:17:55",
"content": "Looks awkward to hold with the capacitors there. I’d have gone with side of the barrel. Which would be awkwardly front-heavy, but at least it’s not getting in the way of your arm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184806",
"author": "jeditalian",
"timestamp": "2010-09-24T00:34:55",
"content": "damn if you could only do away with the projectiles and fire a cutting laser (cutting your enemy in half)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184808",
"author": "Amtal",
"timestamp": "2010-09-24T00:41:57",
"content": "Rate of fire’s kinda low.How about an electrified bayonet to compensate?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184817",
"author": "biozz",
"timestamp": "2010-09-24T01:11:28",
"content": "i have 10 400V 3900UF caps i got off ebay for $5 a peace not doing anything … get my self some SCRs some enameled wire and maybe throw together a 4 stage? (one for injecting) may be fun .. but a can crusher is slightly more appealing to me … maybe a wire vaporizer … or maybe a rail gun or maybe *walks away rambling*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184818",
"author": "biozz",
"timestamp": "2010-09-24T01:12:52",
"content": "second postthis guy needs a better charging circuit … maybe a large buckboost or a SMPS (although it may be a pain in the ass to wind the xfr)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184838",
"author": "M4CGYV3R",
"timestamp": "2010-09-24T01:58:04",
"content": "4x 3900uF? That’s over 9000!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184840",
"author": "draeath",
"timestamp": "2010-09-24T02:10:22",
"content": "Very slick presentation!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184855",
"author": "Mike",
"timestamp": "2010-09-24T02:53:47",
"content": "I have 300F caps here… too bad they are only 2.4V(yes, farad, as in 300,000,000uF). Also have some 5000F caps.. One of these days I’ll make an ultracap railgun..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184863",
"author": "brad",
"timestamp": "2010-09-24T03:33:48",
"content": "neat!the cake is a lie.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184867",
"author": "Vetter",
"timestamp": "2010-09-24T03:46:29",
"content": "Show us what it’d do to a block of balistic gel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184881",
"author": "jg",
"timestamp": "2010-09-24T04:20:54",
"content": "Is it just me, or does this guy remind you of Sid from toy story?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184895",
"author": "biozz",
"timestamp": "2010-09-24T04:54:13",
"content": "@M4CGYV3R actually id use all 10 and double up per stagethats 39000 XD … id need to get some hockypuck SCRs fro that … but i have seen bigger coil guns",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184922",
"author": "xrazorwirex",
"timestamp": "2010-09-24T06:26:34",
"content": "I’m poor so I’ll just have to use about 50 of the low-capacitance 2100V caps I got lying around the shop. I’ll make the charging circuit out of TV components (flybacks on those are bitchin’) and part out some transformers from commercial microwaves; then just use some of the nossler ballistic tip bullets from the gun shed as ammo.Not even the trolls could say that wouldn’t be a hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184931",
"author": "Chris",
"timestamp": "2010-09-24T07:16:53",
"content": "Epic, really well made.One little comment, end of video the motto “Where Neccessity Meets Innovation” – Necessity, has one “c”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184933",
"author": "zero",
"timestamp": "2010-09-24T07:32:36",
"content": "and it starts with a 666 when powered up :))",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184952",
"author": "macona",
"timestamp": "2010-09-24T08:13:02",
"content": "@MikeWhat’s the ESR on the caps. Most high farad caps have a high ESR that will limit the output current of the cap.@biozzHockeypucks are the way to go. Just need to devise a clamping mechanism for them.Also I think fewer turns of heavier wire for the coil might be better. I wonder how long it is actually firing for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184958",
"author": "Bob",
"timestamp": "2010-09-24T08:24:41",
"content": "need to test on bellistics gel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184996",
"author": "Xtremegamer",
"timestamp": "2010-09-24T10:00:24",
"content": "now an automatic loading system and faster charge time :) probably a safe switch could be practical",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185000",
"author": "sd",
"timestamp": "2010-09-24T10:20:53",
"content": "+1 internets for GLaDOS!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185042",
"author": "Jess",
"timestamp": "2010-09-24T12:00:45",
"content": "THIS IS INCREDIBLY DANGEROUS!… I love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185052",
"author": "Tom",
"timestamp": "2010-09-24T12:34:27",
"content": "A bit of MechWarrior music, too ;)Lovely build!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185121",
"author": "jeff-o",
"timestamp": "2010-09-24T14:11:18",
"content": "This would be perfect with a mechanical injector; perhaps a pair of spinning wheels that inject the projectile into the coil, and a sensor that triggers the coil at just the right moment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185152",
"author": "Mike",
"timestamp": "2010-09-24T15:50:10",
"content": "@macona the 350F has 2.5 mOhm and the 5000F has less than 0.25 mOhm. Yeah you don’t want to mess with the big ones. heh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185160",
"author": "BobSmith",
"timestamp": "2010-09-24T16:07:54",
"content": "Torvaun: Have you ever fired a bullpup rifle? The magazine is in the same position as the capacitors (if I have it right; they’re the big blue things in the stock, right?). The magazine on a bullpup isn’t in the way of anything. This setup looks fine to me, and I love the look of the build. Could use it to infiltrate a scifi convention, dressed up like a generic space marine, and off a nerd you don’t like.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185233",
"author": "KJ6EPL",
"timestamp": "2010-09-24T18:15:24",
"content": "Has anyone ever tried a two-stage electro-mechanical gun? Like taking the spring action mechanism from an airsoft or bb gun and adding a coil to the barrel?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185326",
"author": "Alex",
"timestamp": "2010-09-24T22:49:00",
"content": "Would get a much more potent shot if the projectile was much smaller. So much energy is being expended to make a massive projectile travel relatively slowly. A projectile a third of the size as currently being used would make a dramatic improvement to velocity and impact force.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186121",
"author": "BP",
"timestamp": "2010-09-26T12:41:33",
"content": "Alex: I’m not very good with electromagnetism, but I suppose projectile has to be sufficiently large to be properly accelerated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186386",
"author": "mio",
"timestamp": "2010-09-26T23:34:07",
"content": "Break skin? These things should be built as lethal as possible. Right form factor and you should have a billion dollar contract on you hands in no time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188033",
"author": "Nick",
"timestamp": "2010-09-30T04:49:30",
"content": "You’ll never see me putting those caps under my armpit, I’ll tell you that!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188034",
"author": "Nick",
"timestamp": "2010-09-30T04:54:23",
"content": "If you put a piece of neodymium in that projectile from a dead hard drive the projectile would become leathal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188895",
"author": "Torvaun",
"timestamp": "2010-10-01T18:36:18",
"content": "BobSmith: Are you suggesting we use the rear of the capacitor setup as a shoulder stock? It doesn’t really look like it’s got the stability/sturdiness for that.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.246526
|
||
https://hackaday.com/2010/09/23/wifi-ap-gets-antenna-augmentation/
|
WiFi AP Gets Antenna Augmentation
|
Mike Szczys
|
[
"Wireless Hacks"
] |
[
"antenna",
"Asus",
"DD-WRT",
"wifi",
"wl-330ge"
] |
Feeling bad that his access point was being made fun of by models with beefier external antennas, [Customer Service] decided to do something about it. After cracking open the
Asus wl-330ge he found it would be quite easy to add a connector
. This access point has two internal antennas that are quite small and use a spring connection to the signal and ground pads on the PCB. Those pads are fairly large and separated, making it easy to solder the connections. Scavenging an antenna connector from an older device, [Customer Service] soldered it in place and drilled a mounting hole in the plastic case. After flashing DD-WRT firmware he’s now got everything he wants from the little guy.
| 29
| 29
|
[
{
"comment_id": "184764",
"author": "Decius",
"timestamp": "2010-09-23T21:46:23",
"content": "Sounds like something I may want to do ;o",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184765",
"author": "goldscott",
"timestamp": "2010-09-23T21:48:49",
"content": "How much more range/signal strength is the external antenna achieving compared to the stock device?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184768",
"author": "Face",
"timestamp": "2010-09-23T21:54:11",
"content": "@goldscott That would be the most relevant piece of info. Tell us! Tell us now!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184770",
"author": "bill",
"timestamp": "2010-09-23T21:59:21",
"content": "Is it my imagination or does that mainboard also have the tiny connectors you usually find on mini-PCI wi-fi cards?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184778",
"author": "Jakob Griffith",
"timestamp": "2010-09-23T22:25:57",
"content": "@goldscott and FaceMike didn’t mention it but, before the mod [Larry] only picked up about 3 hotspots in his neighborhood, and with the antenna he gets 12. While its not a /real/ measure of strength. It does go to show there is significant improvement with just a 2Dbi antenna.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184779",
"author": "goldscott",
"timestamp": "2010-09-23T22:27:55",
"content": "@JakobNice. Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184780",
"author": "Michael Wheeler",
"timestamp": "2010-09-23T22:28:58",
"content": "Rather than soldering,, why not jstu get a ufl to rma pigtail ? This AP does look quite nice.http://picasaweb.google.com/webmastersof/AsusWl330geWithDDWRTAndExternalAntenna?feat=directlink#5519880535582634322",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184786",
"author": "strider_mt2k",
"timestamp": "2010-09-23T22:46:05",
"content": "Nice!I have a Mini PCI E wireless card I plan on dropping into an MSI Wind Barebones Desktop using a pair of antennas intended for a laptop. (heck, it’s netbook hardware as it is! ;) )I plan on securing them discretely somewhere.I’d much rather have big antennas though. I’ll have to see what I can do about finding a pair used somewhere.Good stuff!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184839",
"author": "Larry Lawrence",
"timestamp": "2010-09-24T01:58:46",
"content": "I recently purchased an Asus wireless access point/router from eBay for the purpose of using it for mobility. I wanted something that I could use while in a car, boat, rv, camping, etc. Due to it’s size. (its smaller then a deck of cards) I could use it about anywhere but first I had to make some changes.For starters I flashed the Asus wl-330ge using the open source (linux based) firware called dd-wrt so it would be alot more powerful and be able to be used as an access point, client bridge, client, repeater, repeater bridge, etc.Once this was complete I was so impressed with this little wifi router that I decided to take it one step further. I wanted to mod it to use an external antenna.Once opening it up out of the plastic case I got a couple of suprises. First, I found that not only did it have 2 internal antennas but it also had another connection near antenna 1 that could also be used to attach an external antenna (like the wires used on laptop wifi cards built in) so a possibility of 3 antennas in total.I took an old wifi adapter and de-soldered the external wire and connector and soldered it to the number 2 antenna of the asus pcb. In the pictures I have taken of the unit modified you can see that I attached (soldered) 2 external antenna connectors to it however in the end I only used just one external antenna as I did not notice alot of difference using 2 of them.Just using the 2 internal antennas I was only able to see 2 access points near my home. With the one new external antenna mod I am now able to see and connect to over 12! (this using only a standard 2 Dbi antenna) When you add this to the fact that I can now use the advanced control panel provided by the dd-wrt firware, you can see what a great addition this would be for anyone that travels.The Asus wl-330ge requires only 5volts DC @ 1 amp to run which also makes it perfect for use with a small solar panel.Here are pics I did during the modding. I hope this helps some of you that have this tiny little wireless access point and are considering modding it.http://picasaweb.google.com/webmastersof/AsusWl330geWithDDWRTAndExternalAntenna?feat=directlinkPeaceLarry Lawrence",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184852",
"author": "Face",
"timestamp": "2010-09-24T02:46:16",
"content": "@Jakob That actually says a lot. Thanks for the update.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184877",
"author": "Jake",
"timestamp": "2010-09-24T04:11:07",
"content": "There is a big difference between *seeing* more access points, and actually being able to use them. He speaks of all this theoretical extra range that this antenna *could* provide, but I see absolutely NO data supporting this theory. I wouldn’t even call it a theory, I’d call it a poor assumption.Also, how does that obscenely horrible solder job affect the impedance of the connection?How about you guys actually look at something before you call it a ‘hack’ and post it…?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184890",
"author": "Richard",
"timestamp": "2010-09-24T04:33:12",
"content": "I dont think its the same connector as used on laptops. I had one similar on an old cardbus adapter that nothing would fit into. It was under the cover so not made for end user use.After asking around a lot it turns out it was some test connector that was not made for constant plugging and unplugging. I just hardwired in a cable where it was connected to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184891",
"author": "T-Rev",
"timestamp": "2010-09-24T04:38:10",
"content": "@Jake How about instead of complaining and trolling you support the fact that; indeed by seeing more connections, this would mean that the device is receiving more than it did previously, also the soldering job was even called horrible by the modder (Can’t you read?) Go troll somewhere else, or buy a bike and learn to ride it. It’s fun, easy and you don’t even have to compile. People like you, are the reason no one wants to post anything worth a crap. Your negative criticism kills communities like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185023",
"author": "abba",
"timestamp": "2010-09-24T11:44:01",
"content": "Oh man I cringed when I saw that soldering job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185041",
"author": "Dave",
"timestamp": "2010-09-24T11:52:03",
"content": "@Jake- If he got a vector network analyzer and measured the impedance it would be less of a hack. What’s published is perfectly appropriate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185104",
"author": "KC8RWR",
"timestamp": "2010-09-24T13:32:03",
"content": "Nice, I have an old USB network adapter w/ the antenna broken off I have been meaning to do this to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185107",
"author": "KC8RWR",
"timestamp": "2010-09-24T13:37:59",
"content": "I wonder, does the router automatically determine which antennas are hooked up and so not transmit through the other pads? It might be nice to solder a chip antenna onto one of the other antenna pads. If it is smart enough to fall back to that and not burn out the finals on the main antenna connection you could unscrew your external antenna when you want it to be small and don’t need range.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185124",
"author": "cgmark",
"timestamp": "2010-09-24T14:22:53",
"content": "To improve it I would desolder what is attached now and clean up the connections. From the way it looks now there is too much of the center wire exposed. You are losing about half or more of your output power right there at the solder joint. The more wire you have exposed the more you are losing. In essence that bit of wire from the solder joint to where it enters the wire shield is your new antenna.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185237",
"author": "natrix",
"timestamp": "2010-09-24T18:28:21",
"content": "@Michael WheelerYeah, it would be much cleaner and probably work better if he used an adapter. Pasternack has a UMCX to RPSMA bulkhead cable assembly for around $30, which is compatible with UFL.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185488",
"author": "echodelta",
"timestamp": "2010-09-25T08:53:21",
"content": "I modded a Linksys wusb11 with no connector at all. My main need is access to the internet and allow positioning away from the PC, in window. The neighborhood is generous with open access points. This older model is 2.4 GHz only and has only one antenna to deal with. Other units TX on one RX on other, or use 2.4 and 5.6 GHz dual band. All of those newer models complicate hooking one high gain directional antenna. The wire came form one of those wind box mini’s, antenna included, wifi card extra. I could have used the original, but test strips and tinnings later I went with the freebie wire. More than a foot but I only used about quarter wave, 1 inch plus directly soldered,tiny size and length! The usb unit is soldered with short ground wires ,IE bug legs to the out side of the cookie tin lid. From tiny pads thru cookie tin lid, to a double diamond bent copper wire. Works great, aim-able. About a 3 fold increase in spots fair or good. It can suffer from rained out access though. Can’t complain though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185535",
"author": "patulawifi",
"timestamp": "2010-09-25T10:44:39",
"content": "I’ve been doing this since 2005 to low cost routers and routers with fixed or internal antennas, nothing new.I’ve even added external antennas & connectors to pcmcia cards.I have some pictures of this at my not-so-updated website. (www.patulawifi.com)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185947",
"author": "Jake",
"timestamp": "2010-09-25T23:48:07",
"content": "@T-RevYour assumption that “seeing” more access points = Greater usable range of the adapter (as a fact, lol) is a laughable assumption, at best.People like me? People like me want to see things posted that *are* worth half a crap, or more. Try teaching/TA’ing in an electrical engineering program. You’ll quickly see that a good percentage of the kids in the program are there not to become engineers, but simply to acquire a degree that says “engineer” on it. Instead of encouraging kids to build a “hack” full of 100% assumptions and 0% theory/data, why don’t we actually help them learn something? THAT is the proper way to teach a kid to better themselves as an electronic hobbyist or engineer. If you aren’t willing to do it right, then don’t do it at all, or at least don’t tell people about your abomination.I just feel like the point of this site is solely to get traffic, and to do that, they often link to projects which are full of assumptions and bad (or no data). Oh, and then they link to things like the mounting bracket for a cheesy power drill motor, and call it… a hack!Lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185966",
"author": "n00b",
"timestamp": "2010-09-26T01:07:13",
"content": "@ Jake so dont come back then mate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185974",
"author": "Chris",
"timestamp": "2010-09-26T01:46:48",
"content": "@Jake you are an idiot who doesn’t recognise data when he sees it. The only way you would suddenly recognise a larger number of accesspoint is if more of them are visible to the receiver. All else being equal that would equate to a larger signal to noise ratio at the receiver. Given the radiating patterns of some internal antennae an improvement would also be easily backed up by RF theory.No one claimed that this is how people should do things. This is a hack. Be happy that he used a soldering iron and not superglue or it wouldn’t be called a hack. Yeah if he didn’t solder and probably used that connector instead he may even pick up more access points, but I think it’s quite clear that many people here know that.Since you’re so hell bent on teaching kids what have we learnt? We now know that unless you have a $200000 network analyser no hack involving an antenna is worth doing. …. Ok no what have we really learnt? That with $5 of parts and a bit of playing around we can suddenly see access points we weren’t able to see previously, we’ve learnt that external antennas may have a better radiating pattern in some circumstances, and we have learnt, completely backed up by facts that you sir are a tosser.On behalf of all of us here who enjoy $5 hacks just for shits and giggles, piss off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185997",
"author": "Jake",
"timestamp": "2010-09-26T02:47:57",
"content": "Dude, I will not mate with you. Gross.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186284",
"author": "Eirinn",
"timestamp": "2010-09-26T19:42:05",
"content": "HaD needs some troll-begone.Cool hack, I’ll definitely try it out once i get my wifi spots up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186419",
"author": "T-Rev",
"timestamp": "2010-09-27T00:31:25",
"content": "@JakeYour theories and data that you crave seeing are what makes electronics (such as a dongle USB device or in your case this router) “holy-as-Swiss-cheese.”(The reason we’re able to hack them in the first place)Just to prove my point Read below, not that it’s relevant.You trust data right?So does Microsoft.(Look at how DATA told M$ that the newer versions of Windows were not crackable!)(Within 15 minutes I bypassed WPA in Windows Seven running Ring0)People can have all the “solid proof-data” in the world and still be off 150%I do not have a degree, and that being said I have been reverse engineering commercial protections in software such as Armadillo/ASProtect/VMProtect since 6th grade.I’ve been cracking Dongle protection(s) since the age of 14. I could link you to a few reads on HASP and some papers I wrote on various different dongles.(People I know who are good in there respective area never took a class on anything, like myself.)Just as a side note: If I was in a classroom with your arrogant ass, I’d probably stab you in the eye with a soldering iron.Everyone in your class is probably just getting the degree and not learning a damn thing because they get discouraged when you barrage them with an endless amount of negative criticism.(I’d be in a hurry to get the hell out too.)Your previous statements above pretty much cement all of our “theories” on that. No need for more “data” there.By the way!How is learning to ride that bike going? Or do you need some solid “proof” on that before you do that to? ;DFor an example on solid proof for the fail see this:http://packetstormsecurity.org/1001-exploits/mswinnt-pwn.txt^ Windows Fail.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187282",
"author": "Jake",
"timestamp": "2010-09-28T15:58:56",
"content": "@T-RevOnce again, you claim that *seeing* more access points means that your usable range has increased, and that’s just not the case unless you can provide real data.It sounds like you need to get out in the real world and see how things work. If you walk in to a meeting, and say “YES, IT WORKS! I COULD SEE MORE STUFF WITH IT!”, and have absolutely no data to back up this wild claim, you’ll be out of a job. You can’t *assume* that just because the device can *see* more access points, it can also *connect to* and *reliably communicate* with them. It sounds like you are smart enough to understand things like SNR, BER, MER, etc, so I suggest that you admit the fact that there is absolutely no data here that shows the device’s usable range has been increased. That is my only point, and it’s blatantly obvious that I am right. If that’s arrogance, then damn, the engineering world is full of a bunch of reeeeeeallly arrogant people! They *LOVE* data!Also, yes, yes, you and every other 14 year old are making keygens and cracks, big deal. Would you like a cookie? Do you want a shirt that says “I’m a HACKER!”? Lol. Good for you, kid. Now go do something meaningful with those skills.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "424826",
"author": "Andy",
"timestamp": "2011-07-28T23:31:57",
"content": "I gave this mod a go but didn’t really notice any improvement. I crimped a short piece of coax cable onto an RP-SMA male connector so that I could swap out the antenna. Unlike the mod in the photos, I cut the core shorter and extended the ground to the GND contact point, with the hope that this would provide better shielding. I don’t know much about radio-electronics, and I wondered afterwards if this made sense. I also though about tying the ground and core contacts together, but again I’m not sure if this makes any sense.I used a multimeter to check DC resistance on the contacts and everything was fine, but maybe I messed up the AC impedance somehow?I also tried to figure out what the CON1 connector is, and I’d say it’s not a U-FL connector as some had suggested. You can see in the photos that it has a conical shaped socket and no male pin in the centre like a U-FL socket would.Anyone have any ideas how I could improve the performance? Anyone else try this and have any luck?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.17132
|
||
https://hackaday.com/2010/09/23/analog-stylophone/
|
Analog Stylophone
|
Mike Szczys
|
[
"Musical Hacks"
] |
[
"555",
"analog",
"pcb",
"stylophone"
] |
[Doug Jackson] just finished building
an analog Stylophone
. We’ve seen this instrument a few times before, most recently
with an Arduino-based controller
, but this one makes use of 555-timer, resistors, and potentiometers to generate the waveform for each note. If you’ve got the copper-clad and the means to etch the board everything else should be pretty easy to come by. We did note that since this is a single-sided board you’ll be soldering on the same side as the components, which can get a bit hairy but manageable. We just wish that [Doug] has posted a demonstration video so we could hear what this sounds like. But it can’t be too much different from
that electronic vuvuzela
that used a 555 timer as well.
| 7
| 7
|
[
{
"comment_id": "184716",
"author": "D_",
"timestamp": "2010-09-23T20:30:04",
"content": "Unlike the vuvuzela that just exist to make an annoying noise. you could play a tune with this stylophone How well this would sound is the question, where not talking Yamaha keyboard here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184756",
"author": "Doug Jackson",
"timestamp": "2010-09-23T21:23:48",
"content": "It is a square wave oscillator … It certainly isn’t a piano!But at least the tuning is accurate!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184769",
"author": "svofski",
"timestamp": "2010-09-23T21:54:56",
"content": "obligatory Little Boots plug:http://www.youtube.com/watch?v=Zcc8gE54Md8",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184854",
"author": "NoSon",
"timestamp": "2010-09-24T02:49:11",
"content": "I bet it sounds something like this…http://www.youtube.com/watch?v=gTO_Hq50FKs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185066",
"author": "smoker_dave",
"timestamp": "2010-09-24T13:09:33",
"content": "555 timer is a digital IC, not analogue. See how it works (ioncluding digital flip flop):http://www.play-hookey.com/digital/timer_555.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185493",
"author": "Stoneshop",
"timestamp": "2010-09-25T08:56:01",
"content": "@smoker_dave: Just because the 555 has a square-wave output doesn’t make it digital. Resistors and capacitors to determine an oscillator’s frequency are certainly the realm of analog electronics.Also, he could have built essentially the same circuit using an opamp instead of the 555; you wouldn’t have called it digital then, even though the opamp’s output would be carrying a square wave as well.BTW, connecting C4 to pin 2 instead of pin 3 gives you a more or less triangle wave, and thus a different sound.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188705",
"author": "Doug Jackson",
"timestamp": "2010-10-01T11:59:13",
"content": "I just uploaded a video of it running.http://www.youtube.com/watch?v=sNcSVarygp8",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.105242
|
||
https://hackaday.com/2010/09/23/codec2-gnu-low-bitrate-speech-codec/
|
Codec2: GNU Low-bitrate Speech Codec
|
Mike Szczys
|
[
"Radio Hacks"
] |
[
"codec2",
"compression",
"ham",
"melp",
"radio",
"speech",
"voice"
] |
Low bandwidth speech compression is a desirable concept for amateur radio enthusiasts. Unfortunately there isn’t a great open-source option out there, but that’s changing with the
low-bitrate speech compression package called Codec2
. It manages to transmit and decode at 2550 bits per second with results comparable to proprietary solutions like
MELP
and very
near the initial goal of 2400 bit/s
. [David Rowe], who spearheads the project, has been simulating communications using a Linux box and has posted audio snippets at the first link above for comparison. They’re looking for feedback and testing so if you interested give them a helping hand.
[Thanks Robomo]
| 11
| 11
|
[
{
"comment_id": "184705",
"author": "hellst0rm",
"timestamp": "2010-09-23T19:28:45",
"content": "Thats great! I can finally do VOIP over my 2400 baud modem ….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184706",
"author": "Doc Oct",
"timestamp": "2010-09-23T19:29:38",
"content": "This is great and exactly what we need. There’s been talk on the mailing-list that ended up with support in freeswitch for this codec. I hope they can eventually figure out a modification for the dstar modules for the radios that take them to allow this codec to run in a real radio at some point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184707",
"author": "mungewell",
"timestamp": "2010-09-23T19:42:52",
"content": "Sounds pretty good, I wish them luck.Regarding the radios; The UT118 plugs into a socket which has a I2C(?) control from the radio’s CPU and insert lines to the RX/TX audio.If someone really wanted to they could produce an alternative plug in module to support any new codecs they wanted.Also the DStar protocol has a byte allocated in the data frame for CODEC version. One could (ab)use this to indicate an alternate CODEC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184709",
"author": "Ugly American",
"timestamp": "2010-09-23T19:48:14",
"content": "There’s also the BSD licensed Speex for low bitrate voice.http://en.wikipedia.org/wiki/Speex",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184710",
"author": "Doc Oct",
"timestamp": "2010-09-23T19:49:45",
"content": "Speex isn’t as good at low bitrates as codec2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184711",
"author": "Hirudinea",
"timestamp": "2010-09-23T20:04:26",
"content": "Well I don’t much about this but I have to admit the samples he made sound really good. Might have interesting aplications for Web Radio.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184714",
"author": "Urza",
"timestamp": "2010-09-23T20:14:54",
"content": "@Ugly American, Doc Oct:My understanding is that the problem with Speex isn’t so much that it’s not good at low bitrates, it’s more about the error handling. The way I understood it, Speex was designed for VoIP. And with VoIP, your error correction is going to be for missing packets. With codec2 (and ham radio codecs in general), you’ll want something that can correct for missing/incorrect bits. There’s no guarantee (hell, it’s pretty unlikely) that the entire packet will arrive intact.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185010",
"author": "elektrophreak",
"timestamp": "2010-09-24T11:07:14",
"content": "Hey thanks for this post! I was looking for something like this few days ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185179",
"author": "thetruthertz",
"timestamp": "2010-09-24T17:06:09",
"content": "Another example of a hams advancing the radio art.Nobody tell @osgeld. If he found out that Dave Rowe was not a grumpy old man with a preoccupation with kids walking on his lawn, he might self-destruct.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "732576",
"author": "Rob Wentworth",
"timestamp": "2012-08-13T01:36:37",
"content": "The latest version now runs below 1400 bps, with plans to get it below 1000 bps.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6517699",
"author": "Jeffrey Jiang",
"timestamp": "2022-09-30T09:43:14",
"content": "We tried Codec2 with real recording voice, and did noise surpression, however, performance is quite different from those samples, we dont know why.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.294677
|
||
https://hackaday.com/2010/09/23/2-bit-paper-processor-teaches-how-they-work/
|
2-bit Paper Processor Teaches How They Work
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"2-bit",
"assembly",
"computer",
"paper",
"processor"
] |
Take a few minutes out of your day, grab your scissors, and learn how a simple processor works. [Saito Yutaka] put together
an exercise to teach processor operations with paper
. After downloading the PDF you can cut out the Address and Data pointer as well as two-bit data tokens for each. The processor has three instruction sets; Increment register by one, Jump if not over flow, and Halt wait for reset.
Once you’ve got your cutouts you can follow along as the program is executed. The INC operation is run, with the JNO used to loop the program. Once the register has reached an overflow the overflow counter halts the program.
One word of warning, we think there’s a typo in one of the captions. Once the program starts running and gets to address 01(2) the caption still reads 00(2) for both address and data. As long as you compare the values in the picture along the way you should have no problem getting through execution. which has now been fixed.
| 17
| 16
|
[
{
"comment_id": "184647",
"author": "Leigh",
"timestamp": "2010-09-23T17:09:00",
"content": "This reminds of the the Bell Labs CARDIAC, a similar concept but base 10. I had one when I was 9 or 10. Later I found a stash of them and bought a few but I believe they may all be gone now; at least, the web site on AOL is gone. But here’s a mirror:http://www.porticus.org/bell/belllabs_kits.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184667",
"author": "Jonathan Badger",
"timestamp": "2010-09-23T18:17:20",
"content": "Another similar project is the “Little Man Computer”, which even has Java emulations.http://en.wikipedia.org/wiki/Little_man_computer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184668",
"author": "EFH",
"timestamp": "2010-09-23T18:21:13",
"content": "It does not have three instruction sets: it has an instruction set consisting of three instructions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184674",
"author": "t&p",
"timestamp": "2010-09-23T18:57:57",
"content": "this is cool and all but why does the example program work in the pictures but his instructions are always 00(2)>>Fetch the instruction . Read data on address 00(2) .Data is 00(2). This means increment register by one>>Fetch the instruction . Read data on address 00(2) .Data is 00(2). This means jump if not over flow .lol wat",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184708",
"author": "Fallen",
"timestamp": "2010-09-23T19:45:20",
"content": "Agreed EFH",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184712",
"author": "Patrick",
"timestamp": "2010-09-23T20:08:20",
"content": "Thank you Hackaday. I’m a TA in an Assembly class and I’ve been needing a visual aid to teach to high school students.I may have to do some expanding to cover all that I need to though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184771",
"author": "Osgeld",
"timestamp": "2010-09-23T22:03:10",
"content": "This looks to be a good educational tool, Might print one out for fun once I get back homeGood job",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184789",
"author": "Saito Yutaka",
"timestamp": "2010-09-23T23:02:44",
"content": "Thanks for your comment.Sorry I couldn’t find a typo before wrote page.I fix the typo a minute ago.Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184856",
"author": "M4CGYV3R",
"timestamp": "2010-09-24T03:00:21",
"content": "There are a few errors in the writeup and this page’s description, but overall a very neat way to demonstrate how a processor works at the lowest level.Well, I suppose you could get into how the transistors and cache store the data on the silicon, but that’s not so much computing at that point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186512",
"author": "Michael Fever",
"timestamp": "2010-09-27T06:39:58",
"content": "This is cool, I will have to teach this to Mike Jr. at some point! =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "186551",
"author": "Waj",
"timestamp": "2010-09-27T10:38:44",
"content": "nice one",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187106",
"author": "sirmonkey",
"timestamp": "2010-09-28T06:33:15",
"content": "explain this:Fetch the instruction . Read data on address 01(2) .Data is 01(2). This means jump if not over flow . Status register is 0 . So CPU should jump to somewhere .But CPU doesn’t know which address to jump .thenIncrement program counter .thenRead data on address 10(2) . The data value is 00(2) .CPU know a address to jump .how does it now know to jump? BUT why does it(jump) when the instruction(00) is to increment the register by one ???maybe edit to say “01 = jump if not status else jump to next read data address” or something in programmer speak",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1367077",
"author": "dutado",
"timestamp": "2014-04-21T14:34:01",
"content": "Well, you probably took it from the bad end. The 01b is a 2-word (where word means a group of 2 bits for now) instruction. In case the condition is met, the processor jumps to the address specified in the operand in second word of the 01xxb instruction. In case the condition is NOT met, then it jumps to the next instruction. Therefore it jumps 2 words further, effectively jumping to the address 11b. Here it reads the 10b instruction, thereby halting the system.",
"parent_id": "187106",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "187203",
"author": "idisjunction",
"timestamp": "2010-09-28T11:49:02",
"content": "So when can we expect the Linux port :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187483",
"author": "Alex",
"timestamp": "2010-09-28T23:36:08",
"content": "The captions are a little confusing but if you just look at the picture realizing that some are doubles it makes perfect sense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "593373",
"author": "F4R4D4Y.dc414",
"timestamp": "2012-03-02T13:42:29",
"content": "There’s so much Engrish in this, I just can’t force myself to read it.At least use Google Translate from a language you know well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1365810",
"author": "wsmf",
"timestamp": "2014-04-21T01:28:45",
"content": "There is a CARDIAC community over on G+ where you can get all the files to make your own CARDIAC as well as the manual. The last place I was able to purchase an original CARDIAC was from Edmunds but even they seem to have run out. Making your own is not hard and it also gives you the chance to skin it to fit your own personality.https://plus.google.com/u/0/communities/105401067945055411018",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.349212
|
||
https://hackaday.com/2010/09/23/a-fantastic-collection-of-slapped-together-bots/
|
A Fantastic Collection Of Slapped Together Bots
|
Caleb Kraft
|
[
"Robots Hacks"
] |
[
"reuse",
"simple",
"trash"
] |
[David Williamson] has put together
some pretty amazing little robots from bits of stuff
he laying around the house. What initially caught our attention was this
drawing robot over at HackedGadgets
. We were impressed by the construction, as it looks like almost all of it was scrap. Upon clicking through the link we found a small collection that kept as amused for quite a while. Each one has some aspect that is surprising in its use of mundane materials. Need an omniwheel? Why not use plastic beads. Want a rail from which a robot can hang and drive? why not use drinking straws. Many of them may not have much for a brain, but the construction of the mechanisms is usually pretty interesting alone. You can see clips of some of his creations in the video after the break.
[youtube=http://www.youtube.com/watch?v=VxtSpP9g1M4]
| 7
| 7
|
[
{
"comment_id": "184604",
"author": "walt",
"timestamp": "2010-09-23T14:24:17",
"content": "not sure how slapped together they are. the materials used are pretty random, but they seem well thought out.oh yeah… 1st!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184651",
"author": "mark",
"timestamp": "2010-09-23T17:31:29",
"content": "Very Rescue Rangers-ish.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184754",
"author": "Greycode",
"timestamp": "2010-09-23T21:10:20",
"content": "“kept as amused” try “us”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184944",
"author": "jerrajerra",
"timestamp": "2010-09-24T07:42:00",
"content": "Wow greycode with error correction",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184963",
"author": "strider_mt2k",
"timestamp": "2010-09-24T08:54:49",
"content": "Extremely cool!I look forward to using some of these ideas in future tinkerings.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185310",
"author": "Pbal",
"timestamp": "2010-09-24T21:27:52",
"content": "Why is it that I saw this and found the robots incredibly adorable?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187518",
"author": "nubie",
"timestamp": "2010-09-29T02:59:31",
"content": "Damn that omniwheel is freaking genius.Wish I was as smart as this guy.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.390621
|
||
https://hackaday.com/2010/09/20/audio-cabinet-refit-with-modern-equipment/
|
Audio Cabinet Refit With Modern Equipment
|
Mike Szczys
|
[
"digital audio hacks"
] |
[
"amp",
"ATmega168",
"fleetwood",
"ir",
"turntable"
] |
Hard at work on making this 1960’s Fleetwood audio console usable again, [Travis]
packed a lot of power
into the retro case. Both the radio and turn table had stopped working but the cabinet looks great and the speakers still work. In the lower center cavity you’ll now find a full computer motherboard and replacement amplifier. A new turntable has been added with an interesting vibration-dampening shelf to support it. [Travis] built the shelf with a void in between two layers of wood which he filled with sand to help with isolation. The remote control for the amp also needed some work as the receiver is pointed to the back of the unit. To fix that a second IR receiver found a home behind the fabric for one of the speaker grates. That receiver is monitored by an ATmega168 microcontroller and signals are repeated back to an IR LED mounted near the amplifier.
| 16
| 16
|
[
{
"comment_id": "183392",
"author": "Nomad",
"timestamp": "2010-09-20T19:36:06",
"content": "Why not move the original IR-receiver to the front instead of using a mega168 for such easy task?Considering you need one pin for the receiver (those things have 3 AFAIK…i’d go for Vcc, Gnd and Data) and another one for the IR-LED, only four of the pins of the 168 are used (Vcc, Gnd, Receiver Data and IR-LED pin). Even if it’s not possible to replace the original IR-receiver, you could’ve used an AtTiny13 or something like that.Other than that…really cool project",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183395",
"author": "lwatcdr",
"timestamp": "2010-09-20T19:44:17",
"content": "Pretty and kind of cool but.If you are going to use a full PC in this I have a few suggestions.1. Add an FM USB stick. You can also get an AM/FM USB device but I am not sure they have Linux drivers for it.2. Run the Turn table through the PC. The better to rip your records plus you could stream the turn table to other devices.3. There is IR blaster software available for Linux so you could use the PC to handle the IR duties that you are using the ATMega for.The sound dampening is going to be the hard one. Good luck with that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183405",
"author": "js",
"timestamp": "2010-09-20T20:23:26",
"content": "You need to read the article to determine why he used an Atmel:“There is an IR sensor behind the cloth of the right speaker, which is processed by an ATMEGA168 microcontroller. Signals destined for the amplifier (Master Volume, etc) are repeated on an IR LED temporarily taped to the amplifer’s remote input. Signals that target the digital music player (track forward, etc) will be passed to the computer over USB (this functionality is not done yet).”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183447",
"author": "Abbott",
"timestamp": "2010-09-20T22:07:51",
"content": "Nice looking rebuild. I like the fact that he has the (new) turntable in there and that he kept the old speakers. No need to fix what’s not broken. To solve the feedback problem, I would probably attempt to suspend the turntable shelf with some springs. Though I’m not an expert by any sense of the imagination with acoustic dampening.Great job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183512",
"author": "Travis",
"timestamp": "2010-09-21T02:02:56",
"content": "Thanks for the comments.Nomad,As js said, there are other functions that the microcontroller handles, so in addition to just repeating the IR codes, it will also communicate over USB with the computer, over SPI with the digital pots and PWM some LEDs for feedback. It also filters and reroutes the commands. ATTINY13’s can’t do all that at once. Additionally, there are IR code/decode libraries specifically written for ATMGEA168. The cost difference between chips definitely isn’t worth the development cost for a one-off piece like thislwatcdr,Good idea of a FM tuner, but all the stations I listen to stream over the web anyway. I considered streaming the turntable through the computer, but it doesn’t have a digital input, so I’d be adding a pair of A/D-D/A conversions which I’d like to avoid. It would facilitate ripping, though I’d prefer to leave that to the studios.Abbott,That’s the idea, I had assumed that the thin wooden rails that support the turntable shelf would have enough springiness but that turned out not to be the case. It’s been suggested that neoprene makes for a spring with some damping.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183695",
"author": "Fallen",
"timestamp": "2010-09-21T13:08:17",
"content": "+1 for neoprene as damping.Might want to check the DIYaudio.com forums. Those guys are always looking for ways to isolate turntables from vibration",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183709",
"author": "jim",
"timestamp": "2010-09-21T14:16:58",
"content": "You could try putting the turntable on spiked feet. Other than that i wouldn’t worry about vibrations.PS: what’s the impedance of the woofer?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183737",
"author": "SelfSilent",
"timestamp": "2010-09-21T16:22:42",
"content": "Surely it would have been easier, cheaper and quicker to run a short length of fibre optic cable from the amp IR receiver and channel it to the front of the cabinet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183750",
"author": "lwatcdr",
"timestamp": "2010-09-21T17:00:43",
"content": "@JS @Travishttp://www.lirc.org/IR Support for Linux.You can read IR remotes and transmit IR to devices with this library.No need to interface the AVR through USB to the PC and you could add a web interface to the amp just as you intend to do. Hey you got a lot more CPU than you need just to play audio so why not use it.Did you a USB hub near the turntable? You could then allow it to stream from USB drives as well as network shares and or a local drive if you added one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183789",
"author": "Travis",
"timestamp": "2010-09-21T17:38:40",
"content": "lwatcdr:I still plan to have a preamp and mixer controlled by the remote, so I’d still need something to interface between the computer and the digital potentiometers’ SPI.Having the remote parsing on the uc also allows the computer to be an optional part of the system, so it can be shut down by remote via the uc, drawing orders of magnitude less power while not in use. I don’t believe you can wake my computer with a USB remote, but I should be able to wake it by connecting the power button to the uc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183847",
"author": "lwatcdr",
"timestamp": "2010-09-21T19:17:22",
"content": "@Travis you are correct. BTW you may want to use wake on ring or wake on modem if that board supports it.You could have the remote micro toggle it and have the board wake-up and sleep instead of powering it all the way down.You should just have to toggle the RI on the ITX boards serial port.You could also interface it through the RS-232 port and not worry about using USB. Serial tends to be a lot simpler from a programing point of view.BTW you could control the SPI digital pots from that board without the AVR.Linux has SPI drivers that work over the printer port.http://cateee.net/lkddb/web-lkddb/SPI_BITBANG.htmlThe only thing that is keeping the micro in at this point is the power use which is a valid issue with that mother board. The other option would be an IR detector that would toggle the RI line whenever it saw IR. Not very elegant but could work.BTW I am not being critical just find the problem solving fun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183869",
"author": "echodelta",
"timestamp": "2010-09-21T19:50:17",
"content": "I hope the amp is no more than 10w per channel. Modern bass production and a 50w amp will kill the vintage high efficiency spkrs. Most modern replacements will not work in the open back mode either. Put a real tuner in it and use a real antenna, no webstream can do justice to a good analogue station. We lost a venerable hifi AM station to “hd”. A good car radio is the cheapest and best way to go. It will mount where the original was, and have the right power. Some even have remote.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183882",
"author": "Travis",
"timestamp": "2010-09-21T20:39:48",
"content": "@echodelta,Contrary to Mike’s writeup, the point of this mod wasn’t to pack in a lot of power, so the amplifier won’t be pushing its power rating. That being said, the original amp was rated for 105 W (consumption); I’m sure the speakers can handle more than 10 W. I expect excessive bass will be evident as distortion well before there’s any damage.The speakers aren’t really open-backed, the back is just removed for pictures. There are some pretty huge vents, though, but they could be blocked if I need to change speakers.@jimThe woofers are 8 ohm. Regarding mounting the turntable on cones, that would we counterproductive. Those spikes help to couple two surfaces where I want to decouple the turntable from the cabinet. If anything, it might be useful to put spikes between the cabinet and the floor to couple the structure to the mass of the building.@FallenI don’t want to be too hard on the diyaudio guys because there’s a lot of good stuff on there on other topics, but their advice on vibrations has to be taken with a grain of salt. It’s half good engineering and half self-delusional witch-doctory and passions often run too high to easily determine which is which.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183904",
"author": "Masta Squidge",
"timestamp": "2010-09-21T21:37:51",
"content": "@ Travis. That last bit is exactly why I have so much fun arguing with people who think they know car stereos. You can always tell someone who has never actually looked into anything they hear because they think capacitors are the solution to voltage drops.Then when you ask them how many alternators they burned up they give you a number and blame the “high powered Pyle amplifier” that they are using. Usually followed by claims that they are running like 3 thousand watts.When presented with a multi-PAGE article on why caps are worthless, with solid math and everything, they claim real world experience makes proven math incorrect.I have a severe dislike for (most) people with many years of experience in the “hobbyist” category of most technical things. Usually no amount of proof will make them shut up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183967",
"author": "Bill",
"timestamp": "2010-09-22T02:08:59",
"content": "This is so weird! I was thinking about this kind of project over the weekend for my grandmother’s old phono. So, what about upgrading/hacking the S/PDIF out section of the turntable? Or maybe getting a better table altogether? I don’t know how much the Stanton weighs and I know Technics doesn’t make S/PDIF out tables (last I checked) but those 1200’s are time tested and HEAVY. Great isolation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184128",
"author": "lwatcdr",
"timestamp": "2010-09-22T14:13:32",
"content": "Hey if you want to add FM..http://hackaday.com/2010/09/21/small-and-simple-fm-radio/It uses I2C or SPI so you could use the AVR to control this as well.I want one of these that supports HD Radio as well as standard FM but this might work for you.You could run this right into the audio in of the amp or you could run it into the audio in of the M1000.Using the audio in of the M1000 would give you the option of creating a radio TVIO type deal. You could have it record audio at specific times or allow you to rewind and or skip commercials.Of course then you would have to have the ITX running to hear the radio. The other option would be to switch inputs using the micro but the user interface for that might get to complicated for it to be of any real use.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.445672
|
||
https://hackaday.com/2010/09/20/beefing-up-a-cheap-drill-motor/
|
Beefing Up A Cheap Drill Motor
|
Mike Szczys
|
[
"Tool Hacks"
] |
[
"drill",
"harbor freight",
"welding"
] |
[Rob] just finished
reinforcing a cheap drill motor
. He picked up the tool at Harbor Freight and ditched the case. The plastic retaining ring was replaced with a thick metal washer which he machine The washer uses three bolts to attach to the mounting plate that he welded together. We’re not exactly sure what he’s got in mind as he only mentioned that this will be used with a robot. We wouldn’t mind having one of these as a bench motor but there must be hundreds of uses now that it can be attached to just about anything. It seems Harbor Freight has become popular as hacking’s raw material source. The last example we saw of this was
a welding table made from a utility cart
.
| 18
| 18
|
[
{
"comment_id": "183346",
"author": "tempestion",
"timestamp": "2010-09-20T17:12:12",
"content": "Come See the new hackerspace this was made at. Newly opened Makeit Labs at 111 tanner st Lowell MA. there will be open houses on thurs from 7pm on. Come down see some projects or work on some of your own.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183348",
"author": "dax",
"timestamp": "2010-09-20T17:30:12",
"content": "So… it looks like this post is about a bracket bracket used to mount a motor. I’d say ‘hack-worthy’ because more mechanical knowledge is always great (I’m a mech eng student), but I can hear the arduino/LED crowd whining already…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183360",
"author": "Joey",
"timestamp": "2010-09-20T17:41:27",
"content": "Harbor Freight FTW. Been shopping there for years. If you have one in your area you should check it out, it’s a hacker tools paradise. . .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183363",
"author": "Timmah",
"timestamp": "2010-09-20T17:44:34",
"content": "My suggestion is to waterproof it and mount it in the kitchen sink, put a brush head adapter on it and have an automatic dish/skillet scrubber.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183364",
"author": "jeditalian",
"timestamp": "2010-09-20T17:49:55",
"content": "i got some wireless headphones from harbor freight for 6 bucks lol. they only play in mono but theres a built in FM radio too and a MIC you can plug in to have a wired headset for skype or whatever. thats some raw hacking material 4ya",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183366",
"author": "Tomasito",
"timestamp": "2010-09-20T17:57:43",
"content": "Why my comment didn’t got posted?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183369",
"author": "djrussell",
"timestamp": "2010-09-20T18:23:00",
"content": "okay, it’s a hack, but he made a bracket. is that really post worthy? :/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183375",
"author": "octel",
"timestamp": "2010-09-20T18:39:19",
"content": "hackaday editors need to proofread before posting",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183378",
"author": "fermicirrus",
"timestamp": "2010-09-20T18:44:38",
"content": "Hey- these 18v motors aren’t bad, I took apart a HF portable circular saw and it uses the same motor.You would want to remove the gearing for a (light duty) CNC spindle but this mount is a great idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183386",
"author": "Philip",
"timestamp": "2010-09-20T19:22:32",
"content": "does not work well…either the speed controlers start burning, and after you build better ones, the motors will.i tried that, but i might have used batteries that were to heavy.http://sites.google.com/site/philipdoering/goliath",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183396",
"author": "MS3FGX",
"timestamp": "2010-09-20T19:45:43",
"content": "Harbor Freight really is a great source of cheap components and gadgets. When you are buying things just to take them apart or repurpose them, it makes sense to go with a cheap supplier.Between Harbor Freight and online resellers like DealExtreme, there are a lot of interesting things you can pick up at very low prices.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183397",
"author": "nes",
"timestamp": "2010-09-20T19:45:47",
"content": "The chuck comes off pretty easy too if you want to replace it with a pulley or something. Open the jaws as wide as they’ll go and there’s a LH thread crosshead screw right down inside. After removing it, give the chuck a whack and off it comes to reveal a keyed shaft.The torque limiter ring is part of the gearbox though unfortunately, so it can’t be removed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183403",
"author": "bleh",
"timestamp": "2010-09-20T20:03:32",
"content": "Ok on the subject of hackworthyness:1.This bracket looks to be hand fabricated.2. The plastic retainer piece was custom fabricated to eliminate weakness.3. Ive personally seen the bracket today, the reason for the chuck is because the 10 inch wheels have a hole saw welded to them which directally chuck right up",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183406",
"author": "jeditalian",
"timestamp": "2010-09-20T20:31:53",
"content": "they’ve been giving away LED flashlights for months too. now i think they’re switching to free multipurpose scissors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183527",
"author": "Whatnot",
"timestamp": "2010-09-21T02:55:29",
"content": "He should give the bracket a lick of (auto)paint.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183607",
"author": "Mr.Grimm",
"timestamp": "2010-09-21T07:37:52",
"content": "I work at HF and some of the stuff we sell there gives me too many ideas some days for ptojects its hard to work xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183873",
"author": "japkin",
"timestamp": "2010-09-21T20:09:29",
"content": "This type of this has been done by robot combat builders for years. We need them to not fall apart after getting hit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184202",
"author": "Jake",
"timestamp": "2010-09-22T17:23:58",
"content": "“Beefing up” is not the correct -It’s still a cheap, non-durable drill motor. “Motor mounting bracket” might be more accurate?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.773642
|
||
https://hackaday.com/2010/09/20/world-maker-faire-new-york/
|
World Maker Faire New York 2010
|
Devlin Thyne
|
[
"News"
] |
[
"maker faire",
"Maker Faire NYC"
] |
A quick heads-up to those of you that will be at the
New York Maker Faire
and the
Open Hardware Summit
.One of our writers, [Devlin Thyne], will be there checking out projects and handing out Hack a Day stickers. Be sure to stop him to say hello and maybe show off your projects. We look forward to seeing you and your projects.
| 18
| 18
|
[
{
"comment_id": "183307",
"author": "Hackius",
"timestamp": "2010-09-20T14:34:09",
"content": "That picture makes me feel tiny",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183312",
"author": "redbeard",
"timestamp": "2010-09-20T15:02:24",
"content": "a preliminary howdy from HacDChttp://www.hacdc.org, DC’s Hackerspace.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183329",
"author": "Shield",
"timestamp": "2010-09-20T15:59:16",
"content": "Chinnnnnns",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183330",
"author": "Velli",
"timestamp": "2010-09-20T16:00:40",
"content": "Why the nostril shot?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183338",
"author": "0x4368726973",
"timestamp": "2010-09-20T16:44:03",
"content": "Too bad I don’t have the funds to travel to NY. At least Dearborn (Detroit) was good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183343",
"author": "Mo Morsi",
"timestamp": "2010-09-20T17:05:56",
"content": "Also a preliminary howdy from SIG315,http://sig315.org, Syracuse NY’s premier hackerspace.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183359",
"author": "Eugene",
"timestamp": "2010-09-20T17:39:29",
"content": "Maker Faire seems to be assiduously avoiding the LA area. Why?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183362",
"author": "Erik Johnson",
"timestamp": "2010-09-20T17:44:00",
"content": "@Eugene, they have one for West, Central and East. West is in SF bay area. Just a leisurely 6 hour jaunt for you :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183376",
"author": "octel",
"timestamp": "2010-09-20T18:40:42",
"content": "behold, the jowl of a privileged bourgeois white guy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183394",
"author": "r_d",
"timestamp": "2010-09-20T19:41:12",
"content": "I dub this style of photography the inverse-myspace-angle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183398",
"author": "therian",
"timestamp": "2010-09-20T19:53:34",
"content": "ironically make magazine become magazine for people who cant make",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183431",
"author": "slippyslap",
"timestamp": "2010-09-20T21:39:54",
"content": "I hope I can make it through the fair without seeing this guy. Is this a warning? “Avoid this big fat head” If it is thank you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183465",
"author": "GCL",
"timestamp": "2010-09-20T22:49:14",
"content": "Well I will definitely be there, on the first day. That’s the Saturday.@therian:How so?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183547",
"author": "octel",
"timestamp": "2010-09-21T03:57:25",
"content": "@GCLmake is now filled with grade-school science fair projects and instructions that amount to nothing more than “hey! buy this commercial product and glue it to this other commercial product! WOWZA HOW DOES IT FEEL TO BE A HAX0R ENGINEER!??!!?1”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183552",
"author": "GCL",
"timestamp": "2010-09-21T04:03:36",
"content": "@octelI asked therian for his, but yours will do. You’re entitled to your own remember…But please also remember we all started some place. Not all of those articles are written for the gang still surviving Middle School and even Junior High.Now if you can present something that you, yourself, created and wrote up in that magazine, now that would be different.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183600",
"author": "therian",
"timestamp": "2010-09-21T07:13:06",
"content": "@GCLI didnt want to answer since you will be there I wanted you too see for yourself, but @octel gave you good explanation",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183696",
"author": "MS3FGX",
"timestamp": "2010-09-21T13:08:19",
"content": "I usually try to stay neutral on this sort of thing, but as a person who recently cancelled his MAKE subscription, I have to agree with the previous posters.The first issues of MAKE were excellent, but later degraded into little more than an activity book for children. I think I realized I wanted to cancel my subscription after the magic issue that showed you how to make a bunch of kid-level magic tricks. As I recall, a few were even submitted by children.As octel said, some of the projects literally amount to the following: “Buy a bump-and-go toy car, glue LEDs to the top, and now you have your very own blinky-bot!”Ostensibly this is some sort of art, but in practical terms it was a waste of my time and subscription money.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185922",
"author": "GCL",
"timestamp": "2010-09-25T22:57:27",
"content": "Well folks I was indeed there for a while. I hate to dissapoint all of you, but there was absolutely nothing like what you’re all complaining about.My only problem was with those jet engine powered vehicles. Too noisy and too close to everyone. It turns out that the riders were not wearing ear protection. So of course we were not told we should also.I also met the gang from Sparkfun, they were teaching a small crew how to solder. They were quietly amazed at the fact that I knew of them, and even bought stuff from them.A gentleman was selling electronic kits. I picked up one that resembled the idea of a certain contributor regarding optical mouse units, and acting like a small image sensor.In all it was not a waste of my time. It was time well spent. It was a good way to spend time outside in NYC, and on the grounds of the Worlds Fair.Note to Hack A day, I did not see anyone resembling your reporter. I did also visit with the group at Liquidware, they were amazed at discovering that their product wrapped around a Beagleboard was a big hit here.A waste of my time would have been next door at Citi Field.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.566886
|
||
https://hackaday.com/2010/09/19/hackaday-links-september-19-2010/
|
Hackaday Links: September 19, 2010
|
Mike Szczys
|
[
"Hackaday links"
] |
[
"6502",
"dockstar",
"iron man",
"kickstand",
"smoking"
] |
6502 Gate Simulator
Ever wondered what’s going on inside that chip as the program executes? Now you can take a look at the die itself with this
visual gate simulator for the 6502
processor. [Thanks Puli and Svofski]
Copper corrosion
[Moogle]
cracked open his DockStar
to find corroded copper. It seems that Seagate left a portion of the ground plane unprotected and it reacted badly with the shielding metal. If you have
one of these devices
you might want to crack it open and tin the exposed copper so that it will hold up over time.
Segway kickstand
Don’t want your Segway to flop over when you park it? Follow [Paul’s] lead in building
a kickstand for the self-balancer
. You can just make it out in the image above. It’s a dumbell that folds down from the handlebar tube when you’re not on board.
Tesla makes everything better
Do you like the song Iron Man? We think it’s
better when our friend Nikola takes part
.
No Smoking
Smoking is really quite bad for you. Plus you can’t chain smoke nearly as efficiently as this
mechanical smoking machine
can so don’t even try. [Thanks Ferdinand]
| 18
| 18
|
[
{
"comment_id": "183088",
"author": "uzerzero",
"timestamp": "2010-09-19T20:11:56",
"content": "#4: Damn. Are they wearing chain mail? Just imagine how the 100 Years War could’ve turned out if the French had Tesla generators…#5: Guess that’s an efficient and safe way of collecting butts for DIY ammo…http://mythbustersresults.com/episode84",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183094",
"author": "Spork",
"timestamp": "2010-09-19T20:43:55",
"content": "@uzerzeroThe “cain mail” is a Faraday cage.The smoking machine is a beautiful piece of mechanics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183118",
"author": "hmm",
"timestamp": "2010-09-19T22:09:34",
"content": "Anyone else just get “loading 6502…” for the 6502 Gate Simulator? (Firefox 3.6.10)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183128",
"author": "svofski",
"timestamp": "2010-09-19T23:08:40",
"content": "@hmm: the 6502 simulation uses debug features native to Chrome, or provided by Firebug extension in Firefox.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183127",
"author": "biozz",
"timestamp": "2010-09-19T23:09:01",
"content": "i would not call it a “Virtual” kickstand … more of a physical human emulator XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183129",
"author": "Werza",
"timestamp": "2010-09-19T23:09:20",
"content": "Smoking machine, wow, how can I learn to do something like that myself? I mean, to learn electronics, no problem, but mechanics? Gears? Brass?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183130",
"author": "Patrick",
"timestamp": "2010-09-19T23:10:16",
"content": "hey, that visual 6502 is awesome.Very nice, if you want to understand how a CPU works.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183147",
"author": "localroger",
"timestamp": "2010-09-20T00:27:44",
"content": "I’m kind of surprised the segway doesn’t have the ability to stand on its own without an occupant. Still, this is kind of a battery-intensive and theft-vulnerable way of parking it.That Tesla coil video is awesome. But I love how there’s a big shop fan running in the background.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183150",
"author": "Jeff",
"timestamp": "2010-09-20T00:38:49",
"content": "simulator works in chromegreat links this week!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183156",
"author": "jeditalian",
"timestamp": "2010-09-20T01:15:19",
"content": "i wonder if it was out of tune because its hard to play in those suits or they need to tune up their tesla soundsystem. they should doit again with an MP3 bc you cant tell if they’re really playing the guitar anyway. Awesome nonetheless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183161",
"author": "Jonathan Wilson",
"timestamp": "2010-09-20T01:40:39",
"content": "I am impressed with the 6502 simulator. From reading the presentation, there are plans to gate level simluate the Apple II which would be GREAT (especially Wosniak’s revolutionary Disk II drive that made affordable disk based storage available for the home market)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183178",
"author": "jeditalian",
"timestamp": "2010-09-20T04:38:44",
"content": "damn that machine made me want a smoke",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183187",
"author": "chris",
"timestamp": "2010-09-20T05:40:26",
"content": "6502 is amazing!I’d love to see a video of say a simple loop modifying and address with all the parts shown explaining what is going on…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183247",
"author": "Tachikoma",
"timestamp": "2010-09-20T09:06:54",
"content": "Apparently you can write your own code for that sim. Should give it crack.Also the Tesla guitar dude owns as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183268",
"author": "blue carbuncle",
"timestamp": "2010-09-20T11:55:45",
"content": "Nice collection of links HAD :) Love the gate simulator! The smoking machine reminds me of our middle school science fair project. We used running water to create suction on the cigarette and a majority of the tar was collected in the tube behind the butt. That was our smoking machine lol.Next year we did a Pulsed Ionic Induction drive VERY similar to the “caterpillar” drives on big nuke boomers at the time ala Hunt for Red October. Hint: The drive works the on the same principle as combing your hair and attracting the faucet trickle with the static charge ;) Again, wonderful collection of links :) Keep it up HAD :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183336",
"author": "Chris",
"timestamp": "2010-09-20T16:36:26",
"content": "I am severely impressed by the 6502 simulator. I just wish it could run at full speed while emulating programs and such.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183388",
"author": "svofski",
"timestamp": "2010-09-20T19:24:18",
"content": "Anyone who is seriously interested in simulating CPUs and seeing what is really going inside can try FPGA. This is not going to be gate-level simulation of the original CPU, but you will be able to see how individual signals and busses in your Verilog or VHDL model change as the CPU is crunching. To run simulations, you do not even need a development kit, but the real fun begins when you tap into a working design of course.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183532",
"author": "Whatnot",
"timestamp": "2010-09-21T03:08:18",
"content": "The simulator runs fine on my firefox.As for the dockstar, I found that everything sold has some issue, it’s good to find what it is since if you can fix it yourself as in this case you are golden and you won’t find the flaw later.But seriously, it’s a rule, everything has at least one (sort of obvious) flaw, from spaceshuttle to flashdisk.That’s also handy since if you come across a review of something and they report all is perfect and don’t mention a nagging flaw then you know the reviewer is either not trying hard or he’s paid off (I’d say the last one is slightly more common than the first one)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.720106
|
||
https://hackaday.com/2010/09/19/autonomous-rover-roams-the-halls/
|
Autonomous Rover Roams The Halls
|
Mike Szczys
|
[
"Toy Hacks"
] |
[
"autonomous",
"dspic33",
"maxbotix",
"rc",
"rover",
"servo",
"sonar",
"traxxas"
] |
[ESylin] built
an autonomous rover that roams the vacant halls
of his school. On the hood of the vehicle he’s mounted two
Maxbotix
sonar sensors that do a great job of keeping the vehicle centered in the hallway. It will follow a wall around a corner (favoring its left side because of the left-facing sensor) and it will stop to correct itself if it gets off course. That’s because when you’re not driving a dsPIC33 is, with
a Traxxas XL-5 speed controller
and a hobby servo for steering. But this little guy hasn’t lost all his pep. Manual control and be switched on from from an R/C controller so you can burn up the floor tiles. Take a look at the demo after the break, with the manual control demo shown at about 4:10.
[youtube=http://www.youtube.com/watch?v=PaCLel009nw]
| 11
| 11
|
[
{
"comment_id": "183066",
"author": "nimitzbrood",
"timestamp": "2010-09-19T19:07:40",
"content": "Is anybody else thinking of the tiny robot from the Death Star?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183091",
"author": "jaqen",
"timestamp": "2010-09-19T20:29:44",
"content": "@nimiz: it just needs to move a bit faster and have a mic so it can respont to loud roars ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183097",
"author": "Jordan",
"timestamp": "2010-09-19T21:02:01",
"content": "@nimitzbroodIt looks like a Toyota Scion XB to me. But yes, I as thinking the same thing.– Jordan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183104",
"author": "Steve",
"timestamp": "2010-09-19T21:14:23",
"content": "Anyone else thinking wireless camera?, or a regular camera?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183149",
"author": "andar_b",
"timestamp": "2010-09-20T00:37:19",
"content": "Is it just me or was this post totally unintelligible?“Manual control and be switched on from from…”I don’t even know what he thought he was saying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183153",
"author": "Tech B.",
"timestamp": "2010-09-20T01:03:04",
"content": "@andar_bI didn’t even notice that until you mentioned it. Seeing the typos reminds me we are all still human… for now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183176",
"author": "danman",
"timestamp": "2010-09-20T03:42:34",
"content": "I think one of his brakelights are out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183250",
"author": "Maffe811",
"timestamp": "2010-09-20T10:01:48",
"content": "It should go faster, and the KITT lights should go a little faster",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183263",
"author": "willy",
"timestamp": "2010-09-20T11:02:20",
"content": "what happens when it comes to a dead end hallway? will it turn around on its own?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183269",
"author": "ESylin",
"timestamp": "2010-09-20T11:56:14",
"content": "willy, it does has some code to deal with dead ends. it takes measurements when it comes to a stop. It will work its way out of a dead end or corner.the speed unfortunately was regulated by the update speed of the sonar sensors. I tried going faster, but it didn’t end well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183271",
"author": "Max",
"timestamp": "2010-09-20T12:01:41",
"content": "it seems to do a good job of smoothly passing the open doors and other disruptions that are not the corners.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.822673
|
||
https://hackaday.com/2010/09/19/wiimote-accessibility-modifications/
|
WiiMote Accessibility Modifications
|
Caleb Kraft
|
[
"Arduino Hacks",
"Nintendo Wii Hacks"
] |
[
"disabled",
"handicap",
"xbee"
] |
[Catea] has put some considerable effort into making a wiimote more accessible to people with physical disabilities. He started by
extending the buttons out to much larger versions mounted on a lap tray
. This makes playing games much easier for those that are lacking the fine motor skills to hit the buttons on the wiimote. This alone is a pretty substantial improvement, but [Catea] wanted to do more.
Taking the whole idea further, [Catea] published a second instructible where he outlines the process of
adding two Arduinos and Xbee modulse to make the external buttons wireless
.
| 10
| 9
|
[
{
"comment_id": "183093",
"author": "jaqen",
"timestamp": "2010-09-19T20:33:44",
"content": "lol @terribledamage does that apply to people with social disabilities as well?Irony may be present in this post",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183132",
"author": "android_04",
"timestamp": "2010-09-19T23:20:51",
"content": "It might be easier to use a Nyko Wand wiimote instead of the original because Nyko has a customized version of the expansion port that allows extending the buttons.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183136",
"author": "Olestra",
"timestamp": "2010-09-19T23:47:45",
"content": "is there a moderator to remove these sorts of posts?>terribledamageI love the hack, I’ve lost one of my joints on my right thumb, and most console games I can’t play– I would love to come up with something to replace the analog sticks, but haven’t figured one out yet.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "183162",
"author": "Caleb Kraft",
"timestamp": "2010-09-20T01:47:44",
"content": "@Olestra,yes, we’re here to moderate, I was just away from the computer for a little while.I think I recall seeing someone relocate one of the analog sticks to the bottom of the controller so that it could be controlled by pressing the controller down to your leg and moving the entire thing. This format would only make sense for someone with a thumb issue as it would still require fine motor skills.",
"parent_id": "183136",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "183138",
"author": "octel",
"timestamp": "2010-09-20T00:06:43",
"content": "aaaaan here come the trolls",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183140",
"author": "therian",
"timestamp": "2010-09-20T00:15:54",
"content": "@terribledamageno one return from other side to tell us that it exist somewhere else than in ours minds. Seriously this life most likely the only lucky chance of having consciousness before yours brain start rotting (yours probably already in bad shape).We lucky to live at this time, it likely that in 20 years computer to brain interface will be perfect and crippled by ilness will get second chance",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183151",
"author": "Decius",
"timestamp": "2010-09-20T00:55:14",
"content": "@terribledamageCool Story Sis.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183179",
"author": "T0ast",
"timestamp": "2010-09-20T04:47:25",
"content": "@ Caleb KraftIt was in that post about the ben heck show. he did that. and moved the other buttons on that side to a foot pedal",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183276",
"author": "Mike Rogers",
"timestamp": "2010-09-20T12:39:38",
"content": "With series 1 Xbees, couldn’t you use DIO passthrough and eliminate the need for the Arduinos?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183370",
"author": "Olestra",
"timestamp": "2010-09-20T18:29:57",
"content": "@ Caleb KraftThanks! both for the moderation, and the idea, time to hit craiglist/ebay for an old ps3…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.610896
|
||
https://hackaday.com/2010/09/19/hackerspaces-sprouting-up-around-the-midwest/
|
Hackerspaces Sprouting Up Around The Midwest
|
Mike Szczys
|
[
"Hackerspaces"
] |
[
"hackerspace",
"non-profit",
"qc co-lab",
"school factory",
"sector67"
] |
[Chris Cooper] wrote in letting us know that this weekend is the grand opening of
QC Co-Lab, a hackerspace in Davenport, Iowa
. They kicked the weekend off in grand fashion on Friday by sand casting bronze medallions with a blast furnace. The 4000 square foot facility has plenty of room for new members so if you’re in the area check it out. It’s not too late to
join in on the tail end of the festivities
.
Sector67 is also making plans for its grand opening. The
Madison, Wisconsin based
hackerspace
will officially open on October 15th. There was a strong turnout for the first viewing of the facilities on September 7th (
see for yourself
), with plenty of building, arranging, and accumulating to be done before the official start. [Chris Meyer] has been working hard to get the organization off the ground, acquiring several grants, and working with the
School Factory
(something of a quick-start incubator for hackerspace-type non-profits). Want to see more? Thanks to [Andrew Seidl] you can peruse
a set of quality photos
from the event.
| 19
| 17
|
[
{
"comment_id": "183035",
"author": "sariel",
"timestamp": "2010-09-19T15:58:25",
"content": "I love it when hackerspaces open. it warms me like a 6000° furnace.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183046",
"author": "nimitzbrood",
"timestamp": "2010-09-19T17:16:12",
"content": "The one in Madison is only a couple hours drive from me, the Davenport one is about three hours, so I might stop by and check it out.I’d love to open one of these in Illinois but I’m not sure where to start or even if there’s enough people who’d want one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183055",
"author": "M4CGYV3R",
"timestamp": "2010-09-19T17:59:14",
"content": "I’m from Madison. I can’t wait until I get back to check it out. Should be a neat spot.The Schenk-Atwood neighborhood is a very fun liberal hippy type area, with a lot of innovative shops and awesome people, and it’s only a couple blocks from the lake max. Notable spots to check out nearby would be the Barrymore Theatre and Williamson St Co-op.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183060",
"author": "Pete",
"timestamp": "2010-09-19T18:41:08",
"content": "Don’t forget Arch Reactor in St. Louis. We moved to a new place in Jefferson Underground a couple months back. Check us out if you’re in the area:http://www.archreactor.org/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183061",
"author": "T3chberto",
"timestamp": "2010-09-19T18:43:00",
"content": "I´m from São Paulo, Brasil. Co-founder of a hackerspace that at nucleation… currently being called hackerSPace /tmp/G-HC however the name are also in the decision.It’s always interesting to see news from other hackerpsances being founded around the world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183067",
"author": "Arron Lorenz",
"timestamp": "2010-09-19T19:09:28",
"content": "Yesterday was a blast! We had a great time out at the QC Co-Lab. The tesla coil was going off, more forging, and a ton of awesome talks.I got to see DNA extraction, impromptu soldering workshops, a ton of food, and fun. I’m sure someone will be posting all the pics and video soon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183069",
"author": "Paul",
"timestamp": "2010-09-19T19:17:20",
"content": "We’re trying to get one off the ground here in Colorado Springs, CO called MUNG (Mash Until No Good) labs. Recruiting and participation have been our major obstacles thus far, so if you’re in the 719 area, stop by and check it out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183073",
"author": "Tim",
"timestamp": "2010-09-19T19:24:38",
"content": "We’ve just started work furnishing our new location in Austin, TX. Just moved in, has a nice mezzanine upstairs, large work area, featuring 24/7 access for members.http://austinhackerspace.orgLike Pete said, check us out if you’re in the area.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183089",
"author": "fermicirrus",
"timestamp": "2010-09-19T20:14:11",
"content": "I’m trying to get one happening in Evansville, IN if anyone from the area is interested",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "741026",
"author": "Larry Oathout",
"timestamp": "2012-08-18T12:14:35",
"content": "Did you ever get one started in Evansville?",
"parent_id": "183089",
"depth": 2,
"replies": []
},
{
"comment_id": "6171536",
"author": "RayneDephault",
"timestamp": "2019-08-11T19:12:16",
"content": "Anything ever happen with this?",
"parent_id": "183089",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "183102",
"author": "Brad",
"timestamp": "2010-09-19T21:10:15",
"content": "fermicirrus, I’m part of a Hackerspace that just opened in Louisville. A little out of the way, but I encourage you to stop by and bring any friends you’re hoping to inspire:http://www.lvl1.org/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183103",
"author": "wrk",
"timestamp": "2010-09-19T21:12:49",
"content": "@nimitzbrood, In Illinois, there’s Pumping Station 1 in Chicagohttp://pumpingstationone.org/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183320",
"author": "JackLeo",
"timestamp": "2010-09-20T15:14:16",
"content": "We’re opening HS in Lithuania, Vilnius too :) it’s nice to see global spreading :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183337",
"author": "rar",
"timestamp": "2010-09-20T16:38:01",
"content": "Hey @nimitzbrood if you’re in Illinois check out Workshop 88: workshop88.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183340",
"author": "BP",
"timestamp": "2010-09-20T16:49:19",
"content": "I’d like to see more info on how these hackerspaces found their space. We are getting kicked out of our current location due to renovations and are having a hard time finding affordable space.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183379",
"author": "JackD",
"timestamp": "2010-09-20T18:59:37",
"content": "We’ve got a group of people in Milwaukee that get together for informal meetings, though we’re still looking for an official space.Milwaukee MakerSpace",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183484",
"author": "Dr bob bob",
"timestamp": "2010-09-21T00:13:16",
"content": "Ex member of the Kansas City Hackerspace (http://blog.cowtowncomputercongress.org/) I was just there for the summer since I am still in college, but I hope to find a permanent hackerspace when I graduate and get a job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184296",
"author": "SDC",
"timestamp": "2010-09-22T20:30:03",
"content": "@femcirrus, there’s also BloomingLabs in Bloomington, IN, if you’re ever in the neighborhood. We just recently acquired and moved into a space, and Mitch Altman and Jimmy Rodgers stopped by on their Midwest Hackerspace tour.http://bloominglabs.org",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.186433
|
||
https://hackaday.com/2010/09/21/another-approach-to-power-meter-data-harvesting/
|
Another Approach To Power Meter Data Harvesting
|
Mike Szczys
|
[
"green hacks"
] |
[
"current cost",
"embedded",
"google powermeter",
"perl",
"webserver"
] |
[Dodgy] wrote in to talk about
his power meter data harvesting programs
. This uses the same hardware by CurrentCost as
the hack we looked at over the weekend
but [Dodgy’s] implementation is different. It’s separated into two parts, the first is a webserver written in C that harvests the data and makes it available at an address on the network, the second is written in Perl to format and upload data to Google PowerMeter.
The C program serves data on a configurable port, defaulting to 3090. All of the data can be accessed in one line of code by loading
http://127.0.0.1:3090
, or individually with subdirectories like /watts, /time, or /tempr. From there you can do what you want with the data. The second part of [Dodgy’s] suite is
a Perl script that polls the C server and sends the data
to your Google account.
One thing that interests us is his comment that you should be able to compile the server side C code for an embedded device. It would be a nice energy savings to be able to upload data regularly without a PC running constantly.
| 17
| 17
|
[
{
"comment_id": "183752",
"author": "chango",
"timestamp": "2010-09-21T17:08:51",
"content": "“One thing that interests us is his comment that you should be able to compile the server side C code for an embedded device.”Hackers start your Dockstars.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183793",
"author": "fartface",
"timestamp": "2010-09-21T17:45:12",
"content": "http://www.theenergydetective.com/ted-5000-cfar more accurate as it has TWO reading points, plus is ethernet already AND does a whole lot more.and are ready to buy in the USA.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183800",
"author": "Renato",
"timestamp": "2010-09-21T18:06:29",
"content": "but that ted 5000-c is much more expensive. are there any other hardware similar to CurrentCost. they don’t ship to brazil and the powersave from EUA charges too much for it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183806",
"author": "reza",
"timestamp": "2010-09-21T18:24:47",
"content": "Does anyone know of comparable products sold in the US?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183810",
"author": "Peter",
"timestamp": "2010-09-21T18:35:41",
"content": "possible to put the webserver on a DD-WRT install? I guess the data would be best put in a proper database like mysql or similar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183812",
"author": "Dodgy",
"timestamp": "2010-09-21T18:49:38",
"content": "You should be able to run it on a WRT distro yes, as its just C code to compile with very little deps…As for the proper DB, why would you want to run mysql on a WRT install? You could use sqlite as its a smaller footprint, though rrdtool could also store the values (and create you graphs as well).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183814",
"author": "HotzoneUK",
"timestamp": "2010-09-21T18:52:11",
"content": "CurrentCost have produced just such an Embedded device more details including some pictures herehttp://hotzone.org.uk/currentcost-bridges-arrive-with-customers/I know someone has already been able to install the arduino bootloader, and some example networking code.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183815",
"author": "HotzoneUK",
"timestamp": "2010-09-21T18:53:26",
"content": "Reza, You can get CurrentCost products in the USA see here for more detailshttp://currentcost.net/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183863",
"author": "phreakocious",
"timestamp": "2010-09-21T19:44:45",
"content": "There was a spectacular talk at DEFCON put on by the folks fromhttp://pleaserobme.com/about the relative (un)intelligence of broadcasting your power usage stats to the world with services like foursquare, powermeter, tweet-a-watt, etc. If you like the idea of broadcasting your non-presence to the world, best to accept the risk of being pwnd.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183926",
"author": "DCinNM",
"timestamp": "2010-09-21T22:46:38",
"content": "Until there are more utilities or cheaper devices in the US, this kinda stuff won’t take off. I’d love to use Google meter or a device to figure out the most expensive part of our daily electrical usage. But TED is ridiculously expensive. CurrentCost is better. Is it so hard to make a meter that will do this? Hell, electric companies already collect data by radio, why not make it 802.11 and let homeowners pull it as well?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183933",
"author": "atroll",
"timestamp": "2010-09-21T23:07:30",
"content": "Is it just me or are the first 2 paragraphs of this article saying EXACTLY the same thing?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184011",
"author": "Frits Rincker",
"timestamp": "2010-09-22T07:10:21",
"content": "Microchip has special purpose mcro controllers to do that",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184182",
"author": "Ben R",
"timestamp": "2010-09-22T16:50:03",
"content": "I haven’t tested one personally. But, comments from some trusted sources on an electric vehicle list I frequent mentions that the CurrentCost meters don’t track voltage or power factor — they measure only amperage — so the kw readings are much less accurate than a meter like the TED that tracks voltage, amperage and power factor.I was excited to first see the CC as a lower cost alternative, but that inaccuracy is a dealbreaker for me. Back to saving up for a TED..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184328",
"author": "Roman Dulgarov",
"timestamp": "2010-09-22T21:52:45",
"content": "@DCinNM That’s already done, Google “ZigBee” the problem with it is that all you get is a cumulative every 10minutes Vs, second by second real-time feedback with TED. Also CC does not measure voltage, so it’s assuming your voltage is 120/240 which is just not true most of the time, your voltage will fluctuate with load in your house AND considering that you also share your transformer with 3-4 other houses your voltage will fluctuate with loads changing in their house too. With voltage possibly fluctuating as much as 10% there is your error range.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184562",
"author": "tom",
"timestamp": "2010-09-23T11:49:33",
"content": "I bought a TED5000 several months ago and was initially very impressed, until it stopped synching to NTP, became inaccessible over my LAN, and became about as useful as one of those hand-warmer pouches if it were tethered to a wall. I did an RMA, but had the same problems with the new unit. I was able to return the entire device. I wish you luck with it, but make sure to save your receipt in case it acts up. If you can get it working continuously, it’s really cool. Mine worked for a couple of days. I did learn that if I want to save $, I should turn off lights and air conditioners when not necessary. I also learned that I don’t need this gizmo in order to do that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185425",
"author": "Matthew Redmon",
"timestamp": "2010-09-25T03:28:22",
"content": "This post and the previous one about the CC meter got me searching about ways to do this with an Arduino. I found this:http://openenergymonitor.orgwhich I hadn’t seen before. I might have to make one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "196436",
"author": "HotzoneUK",
"timestamp": "2010-10-13T20:14:05",
"content": "For anyone in the UK IAM’s (Individual Appliance Modules) are now available to orderMore info here:http://hotzone.org.uk/currentcost-iams-available/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.130527
|
||
https://hackaday.com/2010/09/21/hackerspace-competition-looks-promising/
|
Hackerspace Competition: Looks Promising
|
Jakob Griffith
|
[
"News"
] |
[
"competition",
"hackerspace",
"mitch",
"take on the machine"
] |
This is what happens
when [Mitch Altman] comes together with hackerspaces nationwide to have a contest. In short, 5 hackerspaces will “take on the machine” and come up with 5 original ideas for existing devices. There are a few more rules, but you can catch them in the video in the link above. There is hinting at a slot machine that mixes drinks, a bike that makes ice cream, and more. What do you guys think is in store?
This is also a great opportunity to mention the
hackerspaces wiki
, find a community (or start one!)
near you today
and maybe [Mitch] will call on your hackerspace next competition. For now, we’ll keep you up to date with each hackerspace’s project and progress.
[Thanks Deven]
The spaces in question, for those that would like a link to check them out:
NYC Resistor
Artisan’s Asylum
Pumping Station: One
The Transistor
Crash Space
| 18
| 18
|
[
{
"comment_id": "183748",
"author": "Fallen",
"timestamp": "2010-09-21T16:47:14",
"content": "Too distracted by the hair to read the article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183751",
"author": "andrew",
"timestamp": "2010-09-21T17:02:39",
"content": "So, it’s a bit like top chef, but for hackers. Cool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183755",
"author": "Aero",
"timestamp": "2010-09-21T17:20:43",
"content": "Larry David and David Carradine had a kid!?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183791",
"author": "xeracy",
"timestamp": "2010-09-21T17:43:30",
"content": "I want to start a hackerspace in the San Fernando Valley, but there’s no way I could afford to rent a warehouse/storefront/vacant building… and I wouldn’t want to charge dues.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183802",
"author": "vonskippy",
"timestamp": "2010-09-21T18:13:11",
"content": "Hair only a 50 something acid freak would think looks good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183804",
"author": "Erik Johnson",
"timestamp": "2010-09-21T18:15:53",
"content": "@xeracy see if a local (community) college would help you out. Maybe make it an “official” class where attendees just pay the minimum credits to have a (sciences) teacher babysit the group? Not all classrooms/studios are occupied all day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183805",
"author": "osgeld",
"timestamp": "2010-09-21T18:22:15",
"content": "“and I wouldn’t want to charge dues.”That is kind of the issue with the one “near” me, its over an hour away they have a up front membership charge and monthly dueswhich they say is fair, and really it is a fair price but its not something I would run to on my lunch break or hang out at multiple evenings a week so its a breaker for me",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183809",
"author": "packrat",
"timestamp": "2010-09-21T18:28:44",
"content": "in before “get a haircut you hippie”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183842",
"author": "mad_max",
"timestamp": "2010-09-21T19:09:19",
"content": "Guy kinda looks like David Carradine. Except, you know, less autoasphyxiated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183885",
"author": "Javajunkie",
"timestamp": "2010-09-21T20:46:40",
"content": "And he only called on hackerspaces “nationwide” why? most of them arent even on his side of the world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183888",
"author": "jeff-o",
"timestamp": "2010-09-21T20:51:26",
"content": "I’ve met Mitch before, when he came to my local hackerspace. He’s actually really cool.His hair is still freaky in real life, though. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183912",
"author": "mjrippe",
"timestamp": "2010-09-21T22:11:26",
"content": "A bicycle that makes ice cream? A local bike co-op here in Baltimore has bikes with blenders that make smoothies. They set up at farmer’s markets and you can have one made or “pedal your own”. Easy to convert to an ice cream maker.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183941",
"author": "blue carbuncle",
"timestamp": "2010-09-21T23:46:23",
"content": "You’d think one of them could build some scissors :PI keed I keed",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184000",
"author": "Badger",
"timestamp": "2010-09-22T06:09:17",
"content": "to mjrippeI don’t live that far from Baltimore (25 min subway ride) I need to find this guy and see this ice cream making bike for my self.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184113",
"author": "cf",
"timestamp": "2010-09-22T13:33:20",
"content": "@xeracy – Unfortunately, making a hackerspace that’s both awesome and useful typically requires a fair amount of money. You want space for people to work on projects, space (and money) for machining/fabrication tools, you probably want internet access, you need to pay for utilities and taxes too (particularly if you teach classes to raise money).Our local space, in addition to being full of pretty cool people, is a pretty good deal financially compared to owning your own machine shop, laser cutter, 3D printer, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184238",
"author": "MauiMaker",
"timestamp": "2010-09-22T18:31:32",
"content": "There’s a bike powered smoothy maker out in Hana, HI too. By necessity – there is no power there. Oh and its a DIY smoothy too. You want one, you ride the bike. Come check it out.And yeah, we’d all like free access to tens of thousands of dollars of cool high tech equipment and parts. TANSTAAFL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "185967",
"author": "David Sawyer",
"timestamp": "2010-09-26T01:12:49",
"content": "The guy in the video is the inventor Mitch Altman. What did he invent? First, he was one of the inventors of virtual reality.(at VPL Research with Jaron Lanier) Second, he invented IDE RAID. Third he invented TV-B-Gone. Forth, he invented the Brain Machine.http://en.wikipedia.org/wiki/Mitch_AltmanDavid",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188829",
"author": "Matt",
"timestamp": "2010-10-01T16:45:50",
"content": "Mitch is one of the nicest people you could ever meet. And he’s pretty much dedicated the last few years of his life to bouncing around the planet convincing people that electronics are fun and totally easy to get into.He is from SF though, so that’s probably the whole hair origin.That being said… GO NYC RESISTOR!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.056593
|
||
https://hackaday.com/2010/09/21/machined-steadicam-steadier-than-the-rest/
|
Machined Steadicam, Steadier Than The Rest
|
Jakob Griffith
|
[
"Video Hacks"
] |
[
"aluminum",
"cnc",
"gimbal",
"machine",
"mill",
"steadicam"
] |
No, the picture above is not a store made steadicam. Rather,
a CNC machined one
by [Matt]. Interestingly, unlike most steadicams
we’ve seen before
the gimbal is
not
the main focus of the design
though an aluminum machined gimbal would make us drool
. The central idea is allowing for X and Y axis adjustment to get oddly weighted bulky camera’s exact center of gravity. [Matt’s] steadicam is also designed to handle more weight than commercial versions, and (if you already have a CNC) to be much cheaper. There’s no video, but from the skill of craftsmanship we can safely assume it’s as good and level as some of the best.
| 11
| 11
|
[
{
"comment_id": "183724",
"author": "shogunx0",
"timestamp": "2010-09-21T15:30:48",
"content": "Nice. Now, I wonder what nice piece of tech one can do without a cnc machine. Nowadays – almost nothing ;<",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183725",
"author": "KayDat",
"timestamp": "2010-09-21T15:35:37",
"content": "Gimbals are overrated for steadicams anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183727",
"author": "fartface",
"timestamp": "2010-09-21T15:52:40",
"content": "Why are you people freaking out about a gimbal? they are brain dead easy to make.Inline skate wheel, drill two holes and mount loosely a u bracket. attach handle to u bracket, run central rod of steadycam through skate bearing.Make it in 6 minutes without any real tools.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183729",
"author": "Grovenstien",
"timestamp": "2010-09-21T15:53:13",
"content": "Typical CNC type loving the X and the Y! Nice bit O machining!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183731",
"author": "ehrichweiss",
"timestamp": "2010-09-21T16:00:51",
"content": "fartface, I’m having trouble visualizing what you’re describing. Got any images of what you’re referring to specifically?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183736",
"author": "Sonny",
"timestamp": "2010-09-21T16:17:59",
"content": "Hmmm… just a thoughtIf you hog off the material first, THEN drill all those holes, you:1. Decrease the drill speed cycle time, as you’re drilling trough less material2. Prevent interrupted cuts by the tool, over all the holes. Aluminum is not that bad, but highter grade steels will have the ability to chip your cutting tool.Long, even pressured cuts are the goal.Nice work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183754",
"author": "gregman_1",
"timestamp": "2010-09-21T17:17:56",
"content": "@fartface-that’s not a gimbal, that’s a swivel. A gimbal needs two axes of freedom, at right angles, to actually be a gimbal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183771",
"author": "Amos",
"timestamp": "2010-09-21T17:35:17",
"content": "Nice!I wish my CNC mill could cut that much aluminum (or any, really :P ), although I probably wouldn’t, at least for this project. I would just use thinner stock and attach machined corner pieces.@Jakob: “Steadier” might be a real word, but you still put a comma-splice in your image mouse-over thingy :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183811",
"author": "Matt",
"timestamp": "2010-09-21T18:48:29",
"content": "A couple notes for clarification.Yes it’s a CNC, but other then the hole pattern (which yes still could have been done manually) I was using it as a manual machine. Honestly this could be done with a drill press and a machinist vise with X and Y axis. But hey use what ya got, right?Sonny – Take another look at the pictures, I did the steps exactly as you describe.Amos – The corner pieces were not machined separately since they each have 2 holes in them for the slides and set screws to go in. Just not enough clearance to make them separately attach them and still keep a small(ish) form factor.Thanks all for the comments, this is my first post to Hackaday, but I’ll be posing more soon!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183854",
"author": "bobD",
"timestamp": "2010-09-21T19:25:31",
"content": "Sorry, a “steadycam” without an accompanying video is just a fancy camera mount.Seriously folks. Video.Otherwise all we have here is some wafflecut aluminum, which a CNC can cut while taking a nap.Here, look at my scratch built Atari 2600! I mean, it just looks like a bunch of parts in a box, but trust me, it totally works!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184767",
"author": "tinkermonkey",
"timestamp": "2010-09-23T21:52:32",
"content": "I suggest that a single well made self-aligning bearing makes an excellent gimbal for an application like a steadicam. The spherical outer ring raceway provides gimbal like freedom of movement in one small inexpensive part.Check outhttp://www.vxb.com/page/bearings/CTGY/Self-aligningfor more info on self-aligning bearings.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,371.960159
|
||
https://hackaday.com/2010/09/21/something-wicked-this-way-comes/
|
Something Wicked This Way Comes
|
Caleb Kraft
|
[
"News"
] |
[
"halloween"
] |
Halloween is rapidly approaching. This is just a reminder to you all to send in your Halloween hacks now so that we can all see them and
steal your ideas
get inspiration for our own projects. We’ve seen fantastic stuff in the past from motorized pumpkins to costumes that are simply awe-inspiring. Take a few moments to dig through the
Halloween hacks
we’ve run in the past.
Of course we understand that some of you will be pushing up to the big day to complete your projects. Just remember to take good pictures and document it all well.
| 5
| 5
|
[
{
"comment_id": "183715",
"author": "Clueless_Being",
"timestamp": "2010-09-21T14:37:23",
"content": "im making a spartan armor made out of paper",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183722",
"author": "MoJo",
"timestamp": "2010-09-21T15:16:26",
"content": "Less of the “tabloid” cheezy headlines please.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183813",
"author": "Brennan",
"timestamp": "2010-09-21T18:52:11",
"content": "Man, that must have been hard to carve the middle sections of that HAD logo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183872",
"author": "MrObvious",
"timestamp": "2010-09-21T20:08:53",
"content": "@BrennanReally? It’s a clever use of toothpicks. The center pieces had to be the easiest part. Cool carving nonetheless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183886",
"author": "syale",
"timestamp": "2010-09-21T20:47:21",
"content": "@BrennanToothpicks are hard to carve! I usually just buy them :)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.000597
|
||
https://hackaday.com/2010/09/21/new-term-for-art-sculptural-robotics/
|
New Term For Art: Sculptural Robotics
|
Jakob Griffith
|
[
"classic hacks"
] |
[
"art",
"robot",
"sculpture",
"solar"
] |
[Dan Roe] has been working on
Sculptural Robotics
for quite some time, and most recently presented his newest creation: Solar Flowers 2010. Typically, Sculptural Robotics (coined by [Dan] himself) are stand alone,
static art presentations
made from electronic components and wire. [Dan] of course has
taken it quite a bit further
; giving all his sculptures life using solar panels, motors, engine circuits, and more. Making them zero emission, and beautiful at the same time. You can catch four videos after the jump of his moving sculptures. Not that we’re picking favorites, but the dragonfly is pretty amazing if we do say so ourselves.
[youtube
http://www.youtube.com/watch?v=glX-WxSvOkc&feature=player_embedded%5D
[youtube
http://www.youtube.com/watch?v=1kbZzOYgCWg&feature=player_embedded%5D
[youtube
http://www.youtube.com/watch?v=PkaJmZXTIT4&feature=player_embedded%5D
[youtube
http://www.youtube.com/watch?v=UxPFcSkwrmQ&feature=player_embedded%5D
| 10
| 10
|
[
{
"comment_id": "183701",
"author": "therian",
"timestamp": "2010-09-21T13:25:37",
"content": "What he tried to take credit for inventing BEAM robotics ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183703",
"author": "osgeld",
"timestamp": "2010-09-21T13:33:03",
"content": "I like how he “went further” and made “Sculptural Robotics” that actually moveIt makes me want to get some new “Sculptural Robotics” cause the ones on my desk are not doing it for me anymore (you know the telephone and computer mouse)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183705",
"author": "joe57005",
"timestamp": "2010-09-21T14:04:04",
"content": "i always cringe when i see good components wasted on “art,” at least on these installations the parts are actually doing something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183710",
"author": "Karl",
"timestamp": "2010-09-21T14:21:13",
"content": "There’s something to be learned from how his trilobot manages to get unstuck when navagaiting over rocks with such simple wheels",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183712",
"author": "Nancy",
"timestamp": "2010-09-21T14:23:34",
"content": "Some of his work is explicitly BEAM robotics–He’s not stealing credit, he cites Tilden all over the place and builds on the art and aesthetics side of BEAM. It’s all over his web site. Nice!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183714",
"author": "Tech B.",
"timestamp": "2010-09-21T14:24:42",
"content": "@therian:I thought the same thing, most of them look oddly like photopoppers.For more intuitive BEAM robots check outhttp://www.solarbotics.net/bestiary/2410_popper_gal.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183716",
"author": "Nancy",
"timestamp": "2010-09-21T14:38:23",
"content": "Here is Dan Roe on the BEAM wiki:http://www.beam-wiki.org/wiki/AestheticsHe’s explicitly “a BEAMer.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183726",
"author": "Jon",
"timestamp": "2010-09-21T15:36:56",
"content": "check out Jim Mullins site alsohttp://botart.solarbotics.net/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183921",
"author": "strider_mt2k",
"timestamp": "2010-09-21T22:35:50",
"content": "WONDERFUL!Thanks to HAD I’ve already built an inchworm-bot made of industrial scrap at work. (I provided the gear motor)I was totally planning on building a solar spinner to run off the ambient light at my work bench and boom! -there’s an article on HAD.I love this site!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184617",
"author": "LadyCharis",
"timestamp": "2010-09-23T15:24:30",
"content": "@ joe57005I agree with your comment, but a lot of the components used in ‘art’ are dead ones… for instance, everything /here/ (http://ladycharis.deviantart.com/gallery/#/d2ymqz4) is dead, but at least it has a second life as something pretty, and not gone to a landfill! :D",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.257275
|
||
https://hackaday.com/2010/09/20/homebrew-firmware-upgrade-for-vci-100-turntable-controller/
|
Homebrew Firmware Upgrade For VCI-100 Turntable Controller
|
Mike Szczys
|
[
"classic hacks"
] |
[
"firmware",
"flash",
"midi",
"reverse engineer",
"rs232",
"vci-100"
] |
We love hacks that take quality products and make them better. This
enhanced firmware for the VCI-100
is a great example of that. In a similar fashion as
the Behringer hack
, [DaveX]
reverse engineer the firmware
for the device and figured out a few ways to make it better. It improves the scratch controller and slider accuracy to use 9-bit accuracy from the ADC readings, which in the stock version were being shifted down to 7-bits. There’s also a few LED tricks they call Disco Mode. They’re selling a “chip” that you need to flash the firmware but from what we can see it’s simply an RS232 converter so you might be able to figure out how to work without that part. We’ve embedded a demo of firmware version 1.4 after the break.
[youtube=http://www.youtube.com/watch?v=cjDQmEkWBw4]
[Thanks Steve]
| 13
| 13
|
[
{
"comment_id": "183487",
"author": "ehrichweiss",
"timestamp": "2010-09-21T00:51:53",
"content": "roy, you must have nothing to call a life to feel the need to say that. I’ve scored first post countless times but never once had an urge to just say “first”..I guess because doing so makes you look stupid, not witty or intelligent or anything else positive for that matter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183506",
"author": "M4CGYV3R",
"timestamp": "2010-09-21T01:26:07",
"content": "Traktor and digital controllers are for noobs. It does all the beat matching for you making the “DJ” nothing more than an overpaid jukebox. The Arduino of the DJ world, if you will.Real DJs use vinyl or vinyl-controlled playback software like Serato ScratchLIVE or FinalScratch – and REAL turntables. Even some advanced CD players (Denon DNS-3500 anyone?) would be a step WAY up from this.Go real or go home.Also, Disco Mode ruins any useful feedback the color/light indicators may have provided – not exactly an improvement. The game looks mildly amusing though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183515",
"author": "h_2_o",
"timestamp": "2010-09-21T02:16:29",
"content": "m3cgyv3r, so basically you have nothing to contribute to this except for putting down hackers who have taking the time to reverse engineer a product and make it better.glad to see good hacks like this one here, too bad about tools posting first and n00bs……",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183529",
"author": "DJ",
"timestamp": "2010-09-21T02:59:11",
"content": "@M4CGYV3R, sorry dude, you’re behind the times. Vynil is OUT. I played for 10 years and couldn’t sell my Vestax for what the parts were worth. And Technics are discontinued. The pros do use digital controllers and laptops now, but real DJs still do all the mixing. The platform HAS changed, so the VCI-100 is fine for beginners. Everybody’s a n00b sometime…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183584",
"author": "Cory",
"timestamp": "2010-09-21T06:06:34",
"content": "The ADC may have 512 steps (9-bits) but noise may make the lowest two bits useless, giving an effective resolution of 7 bits. Or the accuracy of the other components is off enough to make the higher resolution a mirage. Either way, I would suspect the change to make the device less reliable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183601",
"author": "Steve",
"timestamp": "2010-09-21T07:16:31",
"content": "Cory: If you read the posts, you’d see that internal ADC is in fact 10 bits, and is then converted to 9 bits to avoid any noise problem (you always have to remove the least significant bit to debounce an analog input even if there’s virtually no noise). Noise was indeed a consideration for the hacker, and it seems as solid as original firmware. It was using 7 bit previously because standard MIDI messages use 7 bits parameters, except for the one (Pitch Bend) he’s using now, that wasn’t supported by the PC/MAC software before.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183662",
"author": "Ewan",
"timestamp": "2010-09-21T10:38:33",
"content": "Nice work.Midi controlers and synths are often hampered by shitty firmware,Good to see somebody rise to the challenge.Don’t get confused about what a dj is!.A dj is just the guy who changes the music. It’s not like you have to be a master turntablist just to call yourself a dj.I know a guy who pays the rent djing who uses one those nasty hercules dj consoles. But he’s more interested in making people dance than being a ‘real dj’Walk arround the bars an clubs in youre local nightlife area, and i’m sure that you”ll find more than half of the people who are being paid to play music will be using pioneer cdj 100’s and the rest will be split between vinyl and computers and expensive cd players.Apart from the fact that cd’s are realy objects, there’s not much diference between a vestax controler like the one in the article and a cdj.Obviously if it was my nightclub i’d want some guy turning up with crates of wax. But thats just because it’s cooler to look at.Sure it takes time to learn to beatmatch, but if your playing shitty music perfectly synced thats not going to make anybody dance.Choosing the right tune at the right time is what makes the dj worth his monney.Djing with vinyl is a different subset of djing, which is much more expensive and more time consuming and much cooler.now everybody can be a dj, get over it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183700",
"author": "jEXEy",
"timestamp": "2010-09-21T13:21:03",
"content": "I’m big into the UK scene where EDM is much bigger than here in the states and i know for a fact that these mp3 controllers are a joke… so go ahead and hack away [cheers], but cdj’s and vinyl aren’t going anywhere.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183749",
"author": "th0mas",
"timestamp": "2010-09-21T16:53:40",
"content": "as a vci-100 owner and a hackaday regular reader I just want to say thanks for posting this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183753",
"author": "Adrian",
"timestamp": "2010-09-21T17:11:59",
"content": "I just want to point out thathttp://www.djtechtools.comalready figured out how to mod the firmware. And that a pro DJ (several, actually) uses the VCI-100 to do some really wicked shit.I’m not discounting [DaveX]’s hard work here; that’s pretty awesome that he figured it out on his own and customized it to meet his needs. When it comes down to it, any DJ who doesn’t customize his setup to his needs and practise like hell doesn’t deserve the title “DJ,” so much as “HJ” (Human Jukebox). It’s one thing to have top-of-the-line equipment or thousand-dollar turntables and a huge record collection, and completely another to use them right and creatively. Sorry, M4CGYV3R. You are dead wrong. Species that don’t evolve, and cultures that don’t change with the times are doomed to die out.Besides, clubs these days don’t care if you can beat-match manually as much as you can draw a crowd and make them money. Technical skill falls in last place now, sadly. Having cool gimmicks and nifty tricks that you can do thanks to software (things you can’t do properly with vinyl, like cue-juggling and live re-edits) gives you an edge up over the competition, too.It’s not the tools you use, but how you use them. When used properly and creatively, you can do amazing things. That’s what hacking is all about, right? Using tools and products in new imaginative ways? Proper DJs nowadays are hackers. I have seen some amazing DJs who made their own equipment completely from scratch, and in the end, those DJs are the most entertaining to watch. Since DJing is a performance art these days, something more than just beat-matching records is necessary to maintain public interest and make a fun night at the club. DJs who showboat are going to make more money and have a bigger following than somebody who just buckles down and beat-matches two records by hand. Hell, that skill is so old, it’s really not impressive anymore. It’s expected (by other DJs) that if you’re a DJ, you can beat-match. Software like Traktor does it for you simply so you have more time to focus on other things, not to encourage you to not ever learn it. And it doesn’t do it perfectly; it takes hours of dedicated tweaking of your library to make it work right. So you still have to do the work, you just do it all in advance, so when the show’s going, you don’t have to focus on beat-matching, and you can instead go nuts and do cooler bigger things.The VCI-100 is compact and clean. Traktor is powerful. Used properly, you can do amazing things with them. Things no vinyl DJ could ever do. Fo much less money. And without carrying several hundred pounds of equipment and vinyl with you to parties.Now I’ll shut up and step down off my soapbox. Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183797",
"author": "Adrian",
"timestamp": "2010-09-21T17:49:39",
"content": "Please excuse my double-post, but I just checked in at DJTechTools, and [DaveX] is a community member there. So my previous statement about them already doing it was dumb. I apologise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183915",
"author": "Mudo",
"timestamp": "2010-09-21T22:21:26",
"content": "…I’m a dj trying to learn arduino for controllerism myself setup.I have some interesting ideas like hardware gear for digital djing with regular turntables but I can develop myself due to:– Dumb old school close mind djs.– Selfish hardware developers and open source mindjails about use traktor or Ableton.– My limited knowledge, time and money.I will very glad to share my ideas but I want to get almost one kit for me. It is so difficult to work altogheter?There is only dumb people or internet?I hope really intelligent and open minded people still lives in this planet. Sometimes I’m not sure (and not the exception of the rule, of course).It is not free hate, it is frustration.Sorry dudes.…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "445263",
"author": "Alex Dodd",
"timestamp": "2011-09-01T00:56:58",
"content": "Hey guys, i know this is an oooooooold post, but i found it whilst searching for the “upgrade cables”, which are apparently like gold dust in the UK. You mention its just a simple RS232 converter, that does kinda simply go over my head, are there any other ways to homebrew this with parts from maplin and my solder iron etc…? I don’t mind doing research, but i don’t really know where to start… Cheers! Alex",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.435612
|
||
https://hackaday.com/2010/09/20/motorcycle-rear-view-with-in-helmet-display/
|
Motorcycle Rear-view With In-helmet Display
|
Mike Szczys
|
[
"Wearable Hacks"
] |
[
"camera",
"display",
"helmet",
"motorcycle",
"myvu",
"rear-view"
] |
Want to see what’s behind you when riding your sport bike without taking your eyes off the road? They make rear view cameras for that but [Nescioqd] wanted
a rear display right in his helmet (PDF)
. He started by mounting a rear-pointing camera on the back of the bike, powered from the 12V feed for the taillight. On the display side of things he picked up a Myvu Crystal wearable display. This is like a pair of glasses that have small LCD screens were the lenses should be. [Nescioqd] removed one lens and mounted it inside the helmet.
Since the display resides inside the helmet there is some concern about being able to see at night with a bright screen below your eyeball. [Nescioqd] actually ran into the opposite problem at first, bright sunlight makes it difficult to see the image on the LCD screen. He fixed this by picking up a dark tinted helmet visor (the easiest solution) but we’d love to see a photoresistor used to regulate the backlight level.
It would be interesting to see both screens used, with rear-view on one side and
an instrument display
on the other.
| 44
| 44
|
[
{
"comment_id": "183410",
"author": "Circuitmage",
"timestamp": "2010-09-20T20:42:09",
"content": "Thoughts:#1. Cool.#2. A monitor on the front ferring/wind shield might be better. Larger screen, non intrusive.#3. My 92 Kawi 600 ninja had rampant Vreg problems…Kawi sux!#4. Metal bracket to the face. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183411",
"author": "Kyle",
"timestamp": "2010-09-20T20:48:02",
"content": "Link to the PDF is broken?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183412",
"author": "Ita G",
"timestamp": "2010-09-20T20:51:04",
"content": "Wow. How cool is this? :-)I was just starting to order things for a similar project, also based on a myvu. Awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183413",
"author": "fast50",
"timestamp": "2010-09-20T20:54:37",
"content": "This is just dangerous!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183414",
"author": "JohnPower",
"timestamp": "2010-09-20T20:56:00",
"content": "the pdf is actually a .docx which crashes word 2007 :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183415",
"author": "onaclov2000",
"timestamp": "2010-09-20T20:56:40",
"content": "I was going to say it might be smarter to run the lense outside the helmet, due to face full of metal if falling.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183420",
"author": "Luke",
"timestamp": "2010-09-20T21:11:12",
"content": "That’s pretty sweet. Ditto, the PDF link is busted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183422",
"author": "Greg",
"timestamp": "2010-09-20T21:15:29",
"content": "High tech isn’t always the best. The Reevu MSX1 already has a rear view. Doesn’t require batteries, or any power.http://www.youtube.com/watch#!v=VYFla-d1lKAhttp://www.reevu.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183424",
"author": "Paul J",
"timestamp": "2010-09-20T21:27:54",
"content": "I put it up on MediaFirehttp://www.mediafire.com/file/apy7cndzsjj3in4/hmd.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183433",
"author": "Mike",
"timestamp": "2010-09-20T21:45:04",
"content": "FYI: MediaFire link doesn’t appear to work in Chrome. IE opens fine, but wow, MediaFire wants your browser.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183434",
"author": "fartface",
"timestamp": "2010-09-20T21:49:48",
"content": "Wow Yuck….just buy the real thing with a REAL use-able view…http://www.reevu.com/Camera at plate level = useless view. I want it high up where I can see. Also I dont want a monitor that will embed it’s self in my eye socket when I come off the bike because some complete idiot in a SUV pulls out in front of me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183450",
"author": "MigSantiago",
"timestamp": "2010-09-20T22:22:09",
"content": "Nice invention!BTW, please fix the PDF link.Thx!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183475",
"author": "johnidi",
"timestamp": "2010-09-20T23:21:00",
"content": "Why not just get one of these babys!http://dvice.com/archives/2010/08/aircraft-inspir.php#4",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183481",
"author": "Olestra",
"timestamp": "2010-09-20T23:53:12",
"content": "@reevu evangelists:Has anyone actually seen one of these helmets? or know what they cost?do they have DOT or Snell safety ratings?I’d rather modify a Snell rated helmet than to strap on a helmet shaped novelty",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183485",
"author": "steve",
"timestamp": "2010-09-21T00:38:38",
"content": "Wow!?! I love it when people do dangerous things in the name of safety. A few observations:as noted modifying the helmet to fit the display is not only dangerous, it’s illegal in most states.any one who has ever ridden a motorcycle knows you need 360 degrees of awareness; it’s a bad idea to even rely on your mirrors! much less make driving decisions based on what this shitty little camera sees.One question: are you still going to ride when you have only one eye after this lcd ends up embeded in your skull as some asshole changes lanes and hits you from outside the field of view of this camera?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183499",
"author": "M4CGYV3R",
"timestamp": "2010-09-21T01:07:44",
"content": "@OlestraBecause your name illustrates a clear understanding of quality products, right? Olestra: You’ll shit liquid for a week if you eat it.As was mentioned, the Reevu helmet has the system built in and is currently being certified by the DOT. Modifying a Snell or ANY helmet to do something similar is a bad idea because you’re altering the approved safety structure. It’s also illegal in many places.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183502",
"author": "Drew",
"timestamp": "2010-09-21T01:14:48",
"content": "This is sweet. That is all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183510",
"author": "Jon",
"timestamp": "2010-09-21T01:55:42",
"content": "I was contemplating doing something similar, with speed, RPM, gear and heading, possibly with turn by turn navigation, but because of safety concerns of ending up with an LCD embedded in my eye during an accident, I didn’t do it. I am considering starting this again with a small projector displaying on the visor instead, but have only got to the brainstorming stage. I imagine one could mount the relevant hardware to the outer shell and have it project trough a small hole in the helmet instead. Even then, I am leery of doing this, as compromising the shell of any helmet may negate its safety rating.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183549",
"author": "biozz",
"timestamp": "2010-09-21T03:58:40",
"content": "i use a mirror on my helmet less distracting but it creates a blindspothere in maryland this morning we had a biker die form getting rear ended by a truck so any safety gear helps",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183571",
"author": "Ryan",
"timestamp": "2010-09-21T05:01:15",
"content": "I’ve never actually worn a reevu, but from what i saw it didn’t look very adjustable, if actually traveling at speed on my sportsbike i think i would only see sky(?).This mod is very cool, but the safety risk of the steel frame inside the helmet seems like an unnecessary trade-off to me.With work though the system could be very impressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183579",
"author": "Quin",
"timestamp": "2010-09-21T05:37:10",
"content": "Modifying a helmet is one of those really unsafe things, like DIY scuba gear. Maybe not quite as dangerous, but the helmet gives a false sense of safety after it is modified. I can’t read the pdf, or docx, but the impact material in helmets it not meant to be modified. Once you compromise it, ditch it as it not going to perform as intended.On the other hand, if you live in a state that doesn’t require helmets, or just requires something that sits on your head, and you know the risk involved, then go for it. E.g. the state I live in only requires a helmet, no dot or snell rating; so if you want a visor and noise reduction, but no impact safety, you can drill all the holes you want in a full face helmet. Looks like a rather cool idea, would like to be able to actually see how they put it together. Not so much so that I will open a .docx file, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183580",
"author": "Olestra",
"timestamp": "2010-09-21T05:38:41",
"content": "@M4CGYV3RMore exactly, I recognized a a product with limitless comedic potential — I still have a sealed bag of chips made with olestra!My comment about the reevu was actualy hoping someone had seen a real product, I’ve requested info, joined there mailing list, asked for a distributor’s contact info on multiple occasions stretching back to late march of this year(when I first heard of it).To date I have received no replies. I hope it’s real, I suspect it’ll be available when duke nukem forever is released.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183588",
"author": "NobodyInParticular",
"timestamp": "2010-09-21T06:35:33",
"content": "If the wearer of this helmet has an accident and his insurance company finds out, I suspect they would invalidate any claim he might make, or be used by the other party in a counterclaim.Modifying safety gear is a dumb thing to do.To then go and publicize it on the net is even dumber.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183589",
"author": "Pol",
"timestamp": "2010-09-21T06:38:26",
"content": "I actually ride with a Reevu MSX1 and they are actually quite adjustable – the view mirror has about an inch of vertical adjustment and can also be adjusted through about 50 degrees of rake so you can set it up no matter where your eyeline is.Also, you set it up so that when you’re looking forwards you can see straight backwards – your riding position won’t make that much difference because you still have to look forward – if you’re riding a crotch rocket and can only see sky then you’re pretty much staring at your front wheel and are going to die soon anyway because you can’t see what’s in front of you.Seriously – the MSX1 is a much safer form of doing this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183595",
"author": "toto",
"timestamp": "2010-09-21T06:59:58",
"content": "instead of mopunting inside of the helmet, mount it on the bike’s guage system.At least in case of accident it will pevent you from eating the metal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183698",
"author": "jim",
"timestamp": "2010-09-21T13:13:15",
"content": "You wouldn’t wire the backlight to a photo-resistor, but rather the light switch.Just saying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183707",
"author": "sr!ff",
"timestamp": "2010-09-21T14:13:34",
"content": "it’s not a PDF but docx",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183713",
"author": "the_steven",
"timestamp": "2010-09-21T14:24:27",
"content": "Although I think that this is a great idea, I am concerned about modifying the helmet that could save my life. I don’t say that in the abstract, I’ve gone down myself, and although I choose to wear a helmet, I know others don’t.(climbing down off my soap box)I would rather see this as a “designed in” feature rather than as an attachment to an existing helmet.If this could successfully be built in to the temples of my glasses, I’d be much more interested in trying it myself.Another problem I see with this idea, is being tethered to the bike, and as I move my head, the rear view does not change. I offer this as an alternative, because as I move my head, I would see what is in the opposite direction of my eyes, not an unchanging view of what is directly behind my bike.http://www.reevu.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183925",
"author": "jim",
"timestamp": "2010-09-21T22:45:19",
"content": "You could mount the camera on the back of the helmet, and the screen on the outside of the visor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183931",
"author": "draeath",
"timestamp": "2010-09-21T22:53:45",
"content": "Why not just glue on a “nacelle” on the outside of the jaw you can glance down into or hanging down from the brow that can have the screen? Is there some reason you have to alter the helmet structure to attach something to it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "183984",
"author": "supertroopa86",
"timestamp": "2010-09-22T03:50:10",
"content": "not to be a d**k but your on a motorcycle couldn’t you just turn around?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184097",
"author": "james",
"timestamp": "2010-09-22T12:32:42",
"content": "that looks safe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184170",
"author": "Jake",
"timestamp": "2010-09-22T16:20:34",
"content": "Some company already designed something better than this, it uses a series of mirrors, so no electronics, and hardly weighs more than your average helmet.This is pointless and dangerous!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184421",
"author": "Nescioqd",
"timestamp": "2010-09-23T02:38:12",
"content": "Wow, I just noticed this got posted to hackaday! The reason I went with the HMD as opposed to a display on the forks was viewability. You’d have to look down beyond the instruments to see it and in any kind of sunlight would be unviewable. Also, turning around to check your blindspot takes your eyes and peripherals off of what’s in front of you, which would be fine if nobody is in front of you. In traffic behind a car, however, they could slam on their brakes while you’re distracted and then you’re screwed.Thanks for the comments (especially “I love it when people do dangerous things in the name of safety.” Love that one)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184521",
"author": "Ryan",
"timestamp": "2010-09-23T09:37:16",
"content": "@Pol“if you’re riding a crotch rocket and can only see sky then you’re pretty much staring at your front wheel and are going to die soon anyway because you can’t see what’s in front of you.”Obviously, just like this guy [wikipedia.org]:http://en.wikipedia.org/wiki/File:Valentino_rossi.jpgI was wondering about people’s experience with a reevu and whether it would work with an aggressive riding style.Would you seriously be able to see what is behind when wearing one in the stance shown above?Please withhold your opinion on the riding style pictured this time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184551",
"author": "Nescioqd",
"timestamp": "2010-09-23T11:31:07",
"content": "@Ryan. I hit 120 in that stance and could see just fine. Take that reevu!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184700",
"author": "Jake",
"timestamp": "2010-09-23T19:22:17",
"content": "OK, if you’re going 120 and take the time to care what is behind you, then you’re probably not going to live very long. When leaned forward on my bike, my mirrors are at such a level that things behind me are easily visible without hardly shifting my eyes. It doesn’t matter, though, because at that speed, all that really matters is what’s ahead of you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184862",
"author": "Ryan",
"timestamp": "2010-09-24T03:21:16",
"content": "You need to keep an eye on the five-oh fading into the distance @ 120 ;-)But seriously, when track riding with no mirrors, being able to see behind you without physically turning around couldn’t hurt when picking your line.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "184878",
"author": "Jake",
"timestamp": "2010-09-24T04:15:08",
"content": "@RyanThey don’t fade in to the distance at 120. I was stopped for more than 70mph over the speed limit, on the freeway. I don’t track ride, so I can’t speak for that, but it seems that sound is everything in such situations. I don’t see how having an LCD screen glaring in your face at night, and straining your eyes by day, is any advantage at all.What no one seems to have mentioned is the time it takes many people’s eyes to switch from a very close focal distance (the LCD) to far – Mine definitely aren’t what they used to be. This thing would drive me f*&*ing nuts!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "187465",
"author": "A7ai442",
"timestamp": "2010-09-28T22:44:37",
"content": "The Partial-on-visor projection wouldst work well",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "188598",
"author": "Cmo",
"timestamp": "2010-10-01T06:32:30",
"content": "Thanks for the fantastic idea. I already installed a backup camera and 3.5 inch monitor onto my sports bike, but as you mentioned in the PDF. Lighting, vibration, etc made viewing the display challenging. After reading your write up I went out and found a used pair of myvu crystal glasses for 40 bucks, hooked them up and am good to go.As an FYI , really no need to tear apart the glasses, I simply removed both arms and mounted the unit straight on the chin bar with Velcro. This allows for easy adjustments and removal, retains normal line of site, and won’t poke my eyes out in the event of a crash.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "425487",
"author": "PatrickStar",
"timestamp": "2011-07-29T23:51:27",
"content": "I’ve had the idea of just a ultrasonic distance sensors with warning LEDs in the corners of the visor. Ever seen anything like that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "979470",
"author": "Stuart Coutts",
"timestamp": "2013-03-16T18:27:42",
"content": "I’m currently working on something along these lines, Ive actually started with a data gathering module for my bike. The second half of the project was going to be pretty much what you’ve done. Could you please relink the pdf, it would be good not to start from scratch. Either this or send it to me directly. ‘gtx_viper@hotmail.com’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1670007",
"author": "David Condrey (@davidcondrey)",
"timestamp": "2014-07-28T06:44:03",
"content": "If anyone is curious about the original document linked in the article.. The link in the original post and the other links that have been posted in comments up until now are all dead links. I was able to find a copy though and uploaded it in case anybody else wants to check it out. Here’s the link:http://anythingimpossible.com/docs/diy-motorcycle-hud.pdfIf this link no longer works just look me up on any of many social networks and let me know, I don’t bite. ;)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,372.513768
|
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