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https://hackaday.com/2011/02/18/brain-car-interface/
|
Brain Car Interface
|
Kevin Dady
|
[
"Transportation Hacks"
] |
[
"autonomous vehicle",
"brain control",
"eeg"
] |
The AutoNOMOS labs project has found a
new way to maneuver its vehicles
, your brain. We have looked at a previous version that uses a mostly computerized van under
remote control from an iPhone
. This one however, named “Brain Driver”, places the operator in the driver’s seat with an EEG strapped to their head.
Going for a more sporty look, the current vehicle is a drive-by-wire Volkswagen Passat wagon filled to the brim with fun toys like LIDAR/ RADAR sensor technology, cameras, and a specialized GPS. The EEG interface is a commercially available Emotiv model, and after a few rounds of training on safe ground, the driver is placed in control of the car.
In one demonstration the car approaches a 4 way intersection, the driver only has to think left or right and the car (intelligently) navigates the turn after coming to a proper stop, and checking for obstacles. In the second demo car and driver are let loose on an unused airport to test responsiveness.
If you like brains, cars, robots, and spinning lasers join us after the break for a video.
[youtube=http://www.youtube.com/watch?v=iDV_62QoHjY&w=450]
| 9
| 9
|
[
{
"comment_id": "336944",
"author": "exuvo",
"timestamp": "2011-02-18T20:42:17",
"content": "Seems really interesting for the future, now if only I could get myself one of those.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336956",
"author": "syale",
"timestamp": "2011-02-18T20:56:40",
"content": "Drivers find it difficult to concentrate at the best of times. I was driving down a Texas highway at 65 mph and another driver passed me with the cell phone jammed between her shoulder and head whilst putting on eye liner using both hands. This project scares the pants off me if it ever makes it into production.“Turn left here”, “no the other left” I had to tell my partner. That says it all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337003",
"author": "crashsuit",
"timestamp": "2011-02-18T22:21:06",
"content": "Lol, future.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337116",
"author": "Private Reg",
"timestamp": "2011-02-19T01:19:54",
"content": "What if people drive without thinking or using their brain? Judging by the number of accidents on our roads thoughtless driving could be fairly common.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337489",
"author": "Pouncer",
"timestamp": "2011-02-19T13:42:27",
"content": "Hmmm, imagine how this would work if someone were getting directions while driving. Committing the next few turns to memory while intending to move forward could cause some unwanted results.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338282",
"author": "Bash",
"timestamp": "2011-02-20T22:37:40",
"content": "Guys, who cares about whether this can be used to drive real cars autonomously or not? I agree that driving is good as it is, and there is no need for robots. However, it is AMAZING how they are combining autonomous vehicle control and interpreting brain commands. Great going! Keep it up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "343734",
"author": "Darktorizo",
"timestamp": "2011-02-27T16:19:56",
"content": "Suddenly I think of one of the planes in the Macross Anime.More proof of, if it can be dreamed, it can be done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "344893",
"author": "ursua",
"timestamp": "2011-03-01T00:29:06",
"content": "omfg its only me or she yust plagied ray william jonson",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "383281",
"author": "sensor headset",
"timestamp": "2011-04-20T08:53:04",
"content": "work a lot with people with this disease. The most common solution we use are the eye tracking from tobii.. check it out athttp://www.tobii.com. Great for communications and enviorment control with Gewa IR systems. Realy interesting work with the brainwaves.. Is there more details about this project exept videoes?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,272.974242
|
||
https://hackaday.com/2011/02/18/simple-household-status-system/
|
Simple Household Status System
|
Mike Nathan
|
[
"home hacks",
"Microcontrollers"
] |
[
"atmega",
"home",
"Monitoring"
] |
[BrianH] decided that he no longer wanted to venture outside on cold or rainy days just to check if the mail had come, so he built himself a notification system that would alert him if the postman had stopped by. Additionally, he admits to being forgetful on occasion and wanted a way to monitor whether or not he forgot to close the garage door.
His Instructable
details how he accomplished both of these tasks with the household monitor he built around an ATmega168. His project uses a mailbox mounted photoresistor to determine when the mailbox has been opened, and a reed switch that is triggered when the garage door has been opened. If either of these things occur, a beep is emitted from his notifier, and the appropriate status LED is lit. Simply monitoring whether the garage door has been opened is not all that helpful, so he programmed his notifier to beep persistently at 10-minute intervals if the garage has been left open for more than an hour.
His hack is pretty useful, but he does mention that there is an inordinate amount of wiring that needs to be laid, citing his driveway repaving as a great opportunity to do so.
| 20
| 20
|
[
{
"comment_id": "336828",
"author": "Alex",
"timestamp": "2011-02-18T18:18:51",
"content": "I have done similar things, very useful in the long run!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336832",
"author": "tantris",
"timestamp": "2011-02-18T18:24:46",
"content": "that would be a good candidate for an electronics tutorial: one circuit with a switch and resistor and a led. one with schmitt-trigger (or darlington or op-amp) added and a mono-flop with reset button.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336838",
"author": "d3c4f",
"timestamp": "2011-02-18T18:39:16",
"content": "You could use a flip-flops, etc. However you would also need a couple of timing circuits for the different delays. Where an ATiny, or ATMega128 will do everything for you, and still only costs about $5.Also, if I was going to stock only a couple parts for random projects: an couple barebones MCU kits are going to be more useful then any thing else.Though I agree, never a bad time for a tutorial. :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336845",
"author": "JosieMichelle",
"timestamp": "2011-02-18T18:55:20",
"content": "i feel like i would run some extra or backup wires since they are going under pavement..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336878",
"author": "saccrolux",
"timestamp": "2011-02-18T19:49:55",
"content": "@poiso,No one cares what you do or do not read. Don’t visit instructables, big whoop – thanks for sharing but no one cares.Sometimes there happens to be interesting stuff on instructables such as this post. If you are too thick to figure out how adblock works or that all you need to do is register an account and click “see all steps” then maybe you should step away from the computer.This is a neat idea, no matter where it happens to be posted – not everyone has their own web site where they can post stuff like this, so instructables makes it easy to share. I don’t see your contributions to hackaday anywhere on instructables or anywhere else for that matter…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336883",
"author": "poiso",
"timestamp": "2011-02-18T19:55:20",
"content": "saccroluxwow so much hostilities, I read the article, but I was just making the point that instructables went from being a pretty cool place to post projects to one of utter annoyance. I understand that a website needs a way to generate income, but when you make it so blatent where a user has to register to just click certain photo’s then it is annoying and alienates certain readers. i dont know who the person was that wuold post the barebones versions of the projects but it made them so much easier to read.and as for contributions I have submitted several articles to hackaday that have been listed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336908",
"author": "Slacking",
"timestamp": "2011-02-18T20:12:42",
"content": "This is exactly what I have been looking for my first ever project on micro-controllers. Thanks for the post",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336925",
"author": "jim",
"timestamp": "2011-02-18T20:34:35",
"content": "Needs wireless and solar charging, then it’s a thing and he can charge $$$ for it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336927",
"author": "biozz",
"timestamp": "2011-02-18T20:35:49",
"content": "the postman here comes every day at the same timei thought that was normal … try calling the USPS",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336928",
"author": "saccrolux",
"timestamp": "2011-02-18T20:36:21",
"content": "Hostilities? No. The whining about it here just gets old after awhile.I would much rather see constructive additions or suggestions for the posted hack rather than, “omgponies I hate instructables”. Trust me, I realize that my commenting here is just as unnecessary.I have my login info cached in Firefox, and I have no problems clicking the “See everything on one page” button when I have to visit Instructables to see a writeup. It would not be my first choice, but I do what I have to do to see what I want to see. I have suffered far worse site navigation *cough* Gizmodo *cough*.If everyone wants content for free, the bills have to be paid in some way. My guess is that content farms likely scraped their site for ages stealing views and ad revenues, so they had to implement some steps to prevent wholesale theft of content. It is a sign of the times and something we all have to deal with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336955",
"author": "Muzer",
"timestamp": "2011-02-18T20:56:29",
"content": "The WTF is that this is required at all – in this country, the postman puts letters through your door (for most houses), so you don’t need to go outside.Though fair enough about the garage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336983",
"author": "1000100 1000001 1010110 1000101",
"timestamp": "2011-02-18T21:41:04",
"content": "@MuzerThere is a significant part of the population that lives in rural areas. In rural areas, mail boxes are placed on posts along whatever roadway is closest to the property of the person in question. Often (as in my case), the mailbox is out of sight of the house due to terrain and vegitation, and for some it could be at the end of a mile-long driveway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337004",
"author": "AdoZ",
"timestamp": "2011-02-18T22:22:48",
"content": "It might not be some huge, fancy, sophisticated hack, but it appears to be practical and functional.I think it’s rare in suburban or rural U.S. for the postman to put mail through a door slot. Some homes built here in the 1950’s had mail slots in (or near) the door or had a box on the outside of the house near the door.In the 1960’s and 1970’s, mailboxes on new homes were put on posts at the curb of each house.In the 1980’s and beyond there was a building boom and I think that’s when the “gang boxes” appeared. My mailbox is down one house and across the street along with those of about 10 of my neighbors. I can’t see it from inside my house.Myself, I don’t care whether the postman has been here or not, only whether there is actually mail in the box for me to retrieve. I’ve kicked around an idea or two for photosensor type systems but have never implemented anything.In this house, I’d have to go wireless. But, the postal service might have a question or two if I start installing electronics in the box.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337115",
"author": "Josh",
"timestamp": "2011-02-19T01:10:54",
"content": "I could see myself doing something like this, however my mailbox is across a public roadway. Any thoughts on a cheap wireless implementation? (Yes, I could just get off my butt and check the mail… but it’s a fun mental exercise).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337314",
"author": "Dean",
"timestamp": "2011-02-19T07:31:25",
"content": "To save on wiring issues why not use a cheap RFM12B-S2 Wireless Transceiver from sparkfun to send the status, got to be cheaper and easier than repaving your drive for",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337414",
"author": "biozz",
"timestamp": "2011-02-19T10:18:58",
"content": "@Muzerin most american suburbs mailboxes are placed next to the driveway so the post man can drive up and put the mail in the box and drive offi was 16 before i saw my first mail slot here in maryland XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337416",
"author": "biozz",
"timestamp": "2011-02-19T10:24:55",
"content": "@001 … dave or whatever XDyeah i had a friend with a golf cart he used just for getting the mail and news paperbut he was filthy fucking rich XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338016",
"author": "Matt",
"timestamp": "2011-02-20T11:38:34",
"content": "I helped a someone make something like this for his mailbox (down a steep 20m driveway) nearly 10 years ago, with a led, a relay, a microswitch and a pushbutton switch. Worked a treat for at least 5 years (haven’t seen him since then).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "340295",
"author": "walt",
"timestamp": "2011-02-23T19:49:54",
"content": "those LEDs could turn on with a flipflop. no need for microcontroller. cool project, though.instructables BOOOOOO!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "377214",
"author": "echodelta",
"timestamp": "2011-04-09T19:07:53",
"content": "It’s funny, for something that moves so slow we need to find out right now when it gets here. With the internet it gets here instantly but it takes time to get to it.In as little as 10 years it won’t matter as the USPS will be shut down. It will handle less and less and it will cost more and more. Plans are for UPS and FedX to take over what little will be left by then. Stuff won’t fit in a wire. Only money and words etc will. Mailboxes will be pulled up and those of us with a slot will have a piece of history. Stamps will all become collectible.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.196265
|
||
https://hackaday.com/2011/02/18/molded-parts-prusa-mendel-in-30-minutes/
|
Molded Parts: Prusa Mendel In 30 Minutes
|
Mike Szczys
|
[
"cnc hacks"
] |
[
"3d printer",
"mold",
"prusa mendel",
"reprap",
"rtv",
"stl"
] |
This set of white
RepRap parts were created in molds
, instead of being printed by another RepRap. [Mark A. Ganter] of the University of Washington admits that this breaks the idea of a 3D printer that is self-replicating. But the molds – which were created by tweaking
Prusa Mendel
parts to be mold friendly – have the ability to produce every plastic part necessary to build your own RepRap and they can do it much faster. Once the molds were completed [Mark] and his students were able to produce a full set of parts in just 30 minutes, cutting as much as 14 hours off of the time it would have taken to print the parts. Still not convinced? How about this: the molds can be created by a 3D printer or by
using a high-resolution power printing method
like they have here.
The process starts by printing master parts, then creating a silicone RTV mold from them. Once the molds are ready, [Mark’s] team pours polyurethane into them and waits for it to harden. They plan to share the STL files in less than a week so that you can make your own molds to use to build your RepRap army.
| 22
| 21
|
[
{
"comment_id": "336776",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T17:09:16",
"content": "So you don’t have a 3d printer that prints itself, you have a printer that you use to make molds then you have to (very carefully) mix up RTV silicone (which is notoriously difficult to work with and quite expensive) and then let that set and then hope you didn’t get any bubbles in it and that you got a solid mix and the cure didn’t inhibit, etc and then do the exact same thing with urethane. Did I mention silicone can flex, throwing off tolerances. I like the concept but just don’t expect this to be like OMGZHHZHZZ I COPIED A REPRAP ITS TURNING INTO GREYGOO AHHHH because that isn’t the reality of how this works.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336778",
"author": "rasz",
"timestamp": "2011-02-18T17:13:08",
"content": "> high-resolution power printing methodthats POWDER not power",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336781",
"author": "andres",
"timestamp": "2011-02-18T17:15:31",
"content": "There are very specific benefits for 3d printing as a manufacturing method. there has been homebrew molding for a long while, and it is totally awesome. but you can’t make the same kind of parts.one example is the square parts on the right. they mount a motor, but where they mount to the system is through two long bores from left to right on the top and bottom of the part. (you can see small nubs in the mold below) now yes, you made a part that looks like the 3d printed version, but now you have to go in and drill a rather long 8mm hole, twice, through each part. kind of defeats the purpose.the beauty of 3d printing is that you only build what is necessary, and your finish work is limited.i’d also like to point out that when the reprap community started, much of the first prototypes were cast, since there wasn’t a reprap to print it on at that point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336783",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T17:16:24",
"content": "Also – silicone shrinks a bit (maybe 1%) or so when it cures, depending on the type. Urethane shrinks a bit more but each type shrinks different amounts. This may not matter for RepRaps but it is something to bear in mind. Also, please if you do this, take precautions with the urethanes when you are working with them. The iso side is pretty nasty.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336785",
"author": "andres",
"timestamp": "2011-02-18T17:17:30",
"content": "that being said, the part on the left is totally fine and usable (no holes in other planes), so yes, molding is a valid manufacturing technique. at least for that part.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336790",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T17:21:37",
"content": "If you are going to work with silicones or urethanes, this link is highly relevant and extremely useful:http://lcamtuf.coredump.cx/guerrilla_cnc1.shtml",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336792",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T17:24:15",
"content": "In theory, one could also try to use Oogoo instead of a pricey silicone –http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/step3/Mixing-Oogoo/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "336846",
"author": "Fontella",
"timestamp": "2011-02-18T18:58:08",
"content": "The oogoo isnt great on detail and the solvents to get it to flow add lots of shrinkage. Better on detail and workability is silicone (off the shelf) with some glycerin and acrylic paint. Works better for home molding than the oogoo.",
"parent_id": "336792",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "336795",
"author": "rasz",
"timestamp": "2011-02-18T17:27:04",
"content": "about the process, its less time, but more manual work, not exactly a golden grailbtw homemade (and professional) CNC machines are made from Polymer Concrete (Epoxy Granite), this mold idea is going this way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336798",
"author": "salec",
"timestamp": "2011-02-18T17:30:05",
"content": "I wonder why don’t we have faster 3D printers with “successive approximation” addition, starting with coarse addition, using wide nozzles, then adding progressively finer details using twice narrower nozzles in each pass. Perhaps even picking and placing industrial polymer granules or even some sort of ready made primitives (like Lego, only without disassembly) and pasting them to each other by molten polymer thread (“printing” between them).Oh, and if it isn’t asking too much, can we have “un-printers”: CNC machines which melt, suck away quanta of plastic from their working object in controlled fashion, and form the plastic thread from it to be reused in 3D printers? That way we could reuse, repair and fine-finish our creations, even do recycle-at-home, putting plastic garbage to a good use instead of letting it float to oceans’ great gyres.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336808",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T17:36:13",
"content": "It is hard to print huge verticl walls with a nozzle.Unprinters are called CNC machines. They cut and mill rather than suck.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336809",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T17:37:13",
"content": "Epoxy is rigid. Casting rigid into rigid is very hard to demold.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336822",
"author": "jkj",
"timestamp": "2011-02-18T17:57:18",
"content": "@salec.yes, yes. today, the thinking on 3d printing is focused on the one-touch machine. it is a miracle that still needs to get in touch with reality.but what you say should be possible, no?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336829",
"author": "Lion XL",
"timestamp": "2011-02-18T18:22:09",
"content": "Hardest crowd to please ever……This isn’t a replicator like on star trek, but its still a valid foundation. Last I read, there are still issues with mendel’s that haven’t been readily fixed…like 14 hour print times, or variances between prints because most of the non printed parts are scavenged and may not always be 100% spec….but lets keep splitting hairs since we can all do way better than any one else…sheeesh…try to give some credit when its due..for the record this is innovative use of the mendel, maybe not be fully inline with their mission statement, but innovative none the less. and no it isn’t the holy grail of star trek replication nor is it the answer to life, the universe and everything (that would be 42!)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336840",
"author": "JohnBailey",
"timestamp": "2011-02-18T18:43:21",
"content": "@salecWell.. we were waiting for you to invent them. So what’s keeping you..Seriously though.. This stuff is still taking it’s first steps. And the affordable end of the wedge is only just getting here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336905",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-18T20:10:22",
"content": "I think the RepRap project is amazing. In concept. The execution and reality…(make ANYTHING! It will be GREAT!) doesn’t quite live up to the hype (actually, you can’t).I deeply encourage it but I remain convinced that the RepRap is inherently limited by its design. It is a big glue gun. It will never be able to reach the level of precision of some other 3d printing methods. Like SLA or Polyjet or projector based UV curing. I may be biased because I own these types of machines but when I see outputs that my machines put off and compare them to the RepRaps…. well there is a reason you get what you pay for. The precision just isn’t there with the RepRaps. I wish it was. But even if it was, you can’t fill in square “pixels” with round “glue guns”. There are practical limits to these machines – which is completely fine. I want people to improve on them. I want people to make awesome things with them. I just don’t want people to think that they will be able to do it out of the box with no effort or hassle and with perfect parts every time. This community is obviously able to roll up its sleeves and figure out problems which is good because the RepRap needs a lot of that until you really dial it in and even then it isn’t like a printer you can buy at a store.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336931",
"author": "dan fruzzetti",
"timestamp": "2011-02-18T20:38:14",
"content": "Yay. share your STL files so we can all pay you a buttload of money to print this crap and then pay some silicone foundry a buttload of money to turn them into silicone molds.just sell the molds for cheap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336953",
"author": "Regulus",
"timestamp": "2011-02-18T20:53:09",
"content": "Well, I just finished printing my own Prusa-Mendel on a hot-rodded cupcake (took about a day unsupervised). I have to say this is a neat idea, but I’ll stick with the tried and true method. Working with molds is great if you’re not modifying anything, but the flexibility of being able to say “hey, let’s add an X to the Y so it can also do Z” and then tacking that onto the file is just much better for my purposes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337051",
"author": "mattw",
"timestamp": "2011-02-18T23:48:29",
"content": "We have cupcakes and mendels at Metrix Create:Space, and we’ve printed mendels, and it’s great, but it doesn’t make for ‘quick replication’ or all that many more 3d printers. The way to get more printers is to make more printers. Yes, it’s a moving target, so mass production is a miss, but distributed small scale production (which turns out, is mass production) is totally within reach.We have a powder printer at the shop now, and we are about to start selling molds (we have already started the printing process) as soon as these files are released. We will also be providing monthly mold diffs for when the target moves. Just because it is a mold, doesn’t mean you get left behind when things change. 3D printing a mold is a *lot* like 3D printing a part, but it takes the same amount of time for far greater output.For those who feel this is crazy and anti-reprap, the STLs are open source, and what we’re really doing is speeding up this process. If you have a powder printer, you should be doing this.Printing *parts* directly is -slow-If you have molds, you can pour 13 clonedels in the time it takes to print 1 prusa.Additionally, complaining about what the quality of molded parts is a trap if you think about it. If you have the molds, you can pour whatever you want in them. Want a floppy mendel? Go ahead. To harden things up, or make the material have greater tensile strength, you just pour something else or use an additive. There are already PLA mendels, ABS mendels, wood mendels and aluminum. Molds expand the possibilities beyond what you can extrude.Self replicating aside, the exciting thing about the reprap project is the accessibility of cheap and capable XYZ cartesian robots. Right now, electronics are still the most expensive and out of stock part of this problem. Addressing that is the next step.Lets stop the religious argument of self replicating, make more robots and get back to designing cool things to make on them. Or, get them into the hands of those that can.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338500",
"author": "failrate",
"timestamp": "2011-02-21T04:11:41",
"content": "What we need to do is make a printer that:A) Prints a mold setB) Extrudes material into the moldsC) Regulates humidity and temperature during curingD) Safely demolds the piecesA) Go To BOr, more likely, two machines: one to print the molds, one to use them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338535",
"author": "Buzz",
"timestamp": "2011-02-21T05:38:06",
"content": "Sorry, but although it’s awesome, using casting with a reprap isn’t new.Here was used liquid silicone ( mold ), and polyurethane ( final object) to copy a reprap printed part to produce a duplicate …. IN 2007!http://www.reprap.org/wiki/SoftToolingForCastingHere was used a higher-temperature method to create metal copies of repraped objects with plaster-of-paris ( mold ) and pewter ( final object).I Hope this helps some of you!BuzzFrom thehttp://www.reprap.org/wiki/Adminteam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "471674",
"author": "devartt",
"timestamp": "2011-10-04T13:04:36",
"content": "Anyone thinking that parts for a mendel HAS to be printed is missing the point of a mendel.It is a great thing that the reprap project exists and its goals are honorable, but the point of a mendel is not to be fruitful and multiply. The medel is a product of the reprap project and has many uses outside of reprap.It’s called prototype development and was never meant to produce production quantity parts.Molded polyurethane IS meant to produce parts in quantity and any mold maker worth his/her salt can and do make excellent quality molds from which excellent quality part emerge which require little or no finishing. So someone has to drill a hole because a part may be too complex for a mold. So what? If it take 10 minutes to make the part, 2 minutes to drill the hole you’re way ahead if the part takes 2 hours to print.These guys are not strictly pushing the reprap agenda, they’re pushing the mendel agenda.Get over it.PS: I agree, maybe you should sell the molds but just having the STL files is enough. they are easier to ship than all that silicon.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.081762
|
||
https://hackaday.com/2011/02/18/8-bit-midi-synthesizer/
|
8-bit MIDI Synthesizer
|
Mike Szczys
|
[
"digital audio hacks",
"Peripherals Hacks"
] |
[
"8 bit",
"guitar hero",
"synthesizer"
] |
[Derek Enos’] toils are starting to yield results. He’s been working on an
8-bit synthesizer that is MIDI controlled
which he calls the deMIDulator. As he demonstrates after the break, the device has sine and square wave functions that produce quite a pleasing sound. But it also offers the option to record your own samples which are then modified based on the MIDI commands coming in from your device of choice. In this case he’s using a Rock Band 3 keyboard (or
keytar
if you will) in a much more creative way than its originally intended purpose.
For now we’ll have to be content with the demo video and a list of features as there are no other details. But open sourcing the code and hardware information are on his to-do list.
[youtube=http://www.youtube.com/watch?v=2KAkMjbrbgU&w=470]
| 14
| 14
|
[
{
"comment_id": "336745",
"author": "walt",
"timestamp": "2011-02-18T16:35:33",
"content": "1st!loooove synth hacks. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336763",
"author": "vespine",
"timestamp": "2011-02-18T16:49:36",
"content": "the real winner in this video is the beard.But i love the hack too:)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336817",
"author": "raith",
"timestamp": "2011-02-18T17:49:24",
"content": "what did you use to convert it to 8bit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336863",
"author": "someone",
"timestamp": "2011-02-18T19:27:04",
"content": "In case you were wondering, the right audio channel is used for voice and the left one for the synthesizer’s output",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336879",
"author": "zool",
"timestamp": "2011-02-18T19:51:07",
"content": "pretty cool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336901",
"author": "Scott",
"timestamp": "2011-02-18T20:06:12",
"content": "Nice job! Just one comment on the video… it’s mixed badly in that your voice is channel R and the audio is channel L.It’s awkward with headphones… and the range goes from very low to “yank the headphones off” loud.In the scheme of things, the video is almost unimportant, but just FYI. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336950",
"author": "Drew",
"timestamp": "2011-02-18T20:48:26",
"content": "I love how he’s using the Rock Band keytar as a MIDI controller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336989",
"author": "Derek",
"timestamp": "2011-02-18T21:47:09",
"content": "Thanks for the feedback!Raith: The PIC18 microcontroller architecture is natively 8-bit so it’s easy to synthesize sound in this resolution. With the PIC’s ADC I can sample audio with up to 10-bit resolution but am just ignoring the two least significant bits.Scott: Yeah, sorry about the channel separation. I agree that headphones are a bit awkward.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337112",
"author": "aztraph",
"timestamp": "2011-02-19T01:04:37",
"content": "love the deer in the headlight look",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337707",
"author": "Matt Boch",
"timestamp": "2011-02-19T22:07:36",
"content": "FYI, Derek used to work with me at Harmonix and is the guy responsible for the MIDI implementation on the Rock Band keytar used in the demo video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338664",
"author": "addidis",
"timestamp": "2011-02-21T12:04:25",
"content": "Awesome work ! Looking forward to looking at the source for this .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "359693",
"author": "RENO",
"timestamp": "2011-03-16T07:43:07",
"content": "Nice T-Shirt..!! :)are you in Ecuador..¿?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "433839",
"author": "Derek",
"timestamp": "2011-08-13T13:57:45",
"content": "This project is live onKickstarteruntil Sept 18 2011.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "440611",
"author": "sam",
"timestamp": "2011-08-24T00:38:30",
"content": "this is my sample this is my gun,this is for music this is for fun.loving the racing theme. would love to get hold of one if you decide to mass produce them.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,272.80703
|
||
https://hackaday.com/2011/02/18/cyborg-camera-mask/
|
Cyborg Camera Mask
|
Kevin Dady
|
[
"digital cameras hacks"
] |
[
"cyborg"
] |
[Ryan] whipped up this
robotic masquerade mask
to wear to his wife’s art opening / masquerade party, and its pretty wild. The prominent feature of this mask is a scavenged lens assembly from a typical point n shoot style camera, which is still connected to its electronics so it can go through its off and self check functions. You cant see through it, but with moving parts and a red LED inside, it does create an awesome cyborg type appearance,
The movement of the lens assembly is triggered by a thermistor inside of the mask’s nose piece, warm air exhaled onto to it for a given period of time changes the resistance and is monitored by a micro controller, which seems to act like a toggle style switch.
While there is not a build log, parts list, or many details, the schematic is provided for you to look over if you want to try and make your own.
[youtube =
http://www.youtube.com/watch?v=eQ12qboKwTY&w=450]
| 8
| 8
|
[
{
"comment_id": "336691",
"author": "Velkro Smaak",
"timestamp": "2011-02-18T14:24:24",
"content": "So, it doesn’t have a screen in it so that you can see through the lens? Is that for V2.0?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336713",
"author": "Mane",
"timestamp": "2011-02-18T14:56:09",
"content": "2-SmaakAdding a screen would be probably more uncomfortable than not seeing thorough the lens. Due to video lag and difference of perspective..I like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336720",
"author": "nah!",
"timestamp": "2011-02-18T15:13:30",
"content": "would be cool to have some sort of half transparent mirror beneath with the optical sensor still intact, to autofocus the lens continuously + one can see troughwould be awesome for optical disabled people (without lense or extremely shortsighted people)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336730",
"author": "fotoflojoe",
"timestamp": "2011-02-18T15:42:44",
"content": "I’ll bet he has to fight off all the ladies when he’s wearing that!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336735",
"author": "catzburg",
"timestamp": "2011-02-18T16:04:50",
"content": "It’s kinda ugly, but I love the user interface",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336803",
"author": "Gert",
"timestamp": "2011-02-18T17:33:32",
"content": "Have a movement detector control the zoom.It would be cool standing i front of the person and seeing the cam zoom in and out like it’s inspecting the person.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337422",
"author": "nebulous",
"timestamp": "2011-02-19T10:40:34",
"content": "@ fotoflojoeWho cares, he’s already married. Anyway, looks awesome and unique.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337815",
"author": "o",
"timestamp": "2011-02-20T03:05:55",
"content": "It would have been better without the schematic written on it, but I like the thermistor control.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.347181
|
||
https://hackaday.com/2011/02/18/nes-paul-game-controller/
|
NES Paul Game Controller
|
Mike Nathan
|
[
"Musical Hacks",
"Nintendo Hacks"
] |
[
"games",
"guitar",
"nes"
] |
[NeoTechni] wrote in to share the
new game peripheral she built
, dubbed the NES Paul. The ultimate goal of the project was to build a NES-styled controller for an upcoming game she is working on, tentatively titled 8-bit Hero. The guitar is constructed primarily from wood, as well as some scrounged bits she had around the house. An Xbox 360 controller was dismantled and wired to provide input for the guitar’s buttons and D-Pad. Even the Xbox controller’s rumble packs were used in order to provide visual feedback of missed notes via LED tuning pegs on the guitar’s headstock.
The writeup is broken into several pieces as it was put together in a handful of Google Buzz posts, but it is still relatively easy to follow. We can’t wait to see how the project comes together once the game portion has been completed.
| 7
| 7
|
[
{
"comment_id": "336718",
"author": "Steve Pomeroy",
"timestamp": "2011-02-18T15:08:18",
"content": "I believe this is what we call: totally sweet.8-bit 4eva!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336732",
"author": "stillinbeta",
"timestamp": "2011-02-18T15:45:19",
"content": "Let’s be honest – this whole hack was done for that pun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336818",
"author": "raith",
"timestamp": "2011-02-18T17:51:20",
"content": "might want to tread carefully with that 8bit hero game, dont want a repeat of what happened with the 8bit version of dj hero.maybe keep it on the down low until release",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336934",
"author": "dan fruzzetti",
"timestamp": "2011-02-18T20:39:21",
"content": "NES paul – I agree with stillinbeta, but the pun itself is really, really friggin awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336948",
"author": "MS3FGX",
"timestamp": "2011-02-18T20:45:44",
"content": "Little correction, that “he” is actually a “she”:http://www.google.com/profiles/NeoTechni",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337268",
"author": "Aliens",
"timestamp": "2011-02-19T05:49:19",
"content": "This would be perfect for the dpad hero games.http://dpadhero.com/Home.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339349",
"author": "NeoTechni",
"timestamp": "2011-02-22T10:53:55",
"content": "Thank you for covering me!Here’s a pic of it next to my mini NES-themed arcade cabinet:https://sites.google.com/site/programalpha11/home/pictures/NES.jpg?attredirects=0I dont wanna be a bother, but could you correct the spelling of my name please?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,272.753099
|
||
https://hackaday.com/2011/02/17/xprotolab-oscilloscope-and-xmega-development-board/
|
Xprotolab: Oscilloscope And Xmega Development Board
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"atxmega32a4",
"AVR",
"oscilloscope",
"xmega",
"xprotolab"
] |
Here’s a nice
hands-on overview of the Xprotolab
, a development board based around the AVR
ATxmega32A4
microcontroller.
The tiny DIP package
includes an OLED display, four tactile switches, and it can be powered via a micro USB connector. The device ships ready to use as a two-channel Oscilloscope, but check out how small it is in the video after the break to decide if this will actually be useful for you. It’s not that it doesn’t have a lot of features, in fact it’s packed with them, but that screen is quite small for meaningful work. Still, at $35 it’s an inexpensive way to get your hands on the hardware and acquaint yourself with this line of microprocessors. Not that in order to flash new firmware you will need a PDI capable programmer.
[youtube=http://www.youtube.com/watch?v=Q22tB7C-bMg&w=470]
[Thanks Daniel]
| 27
| 27
|
[
{
"comment_id": "336172",
"author": "Bill D. Williams",
"timestamp": "2011-02-17T23:29:01",
"content": "Looks great.I wish the Arduino came with a OLED! That’s actaully really handy for debug/prototyping.Hey arduino, it’s time to step up your game.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336193",
"author": "matyvico",
"timestamp": "2011-02-17T23:44:40",
"content": "Amazing! I’m going to buy one! But before, did you see other options like this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336215",
"author": "John",
"timestamp": "2011-02-18T00:08:48",
"content": "While I like what I see, it would be nice if it could dump the data to your computer over that usb connection.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336232",
"author": "FightCube.com",
"timestamp": "2011-02-18T00:27:35",
"content": "Wow, really well done!!! Incredible price for such a nice device.@John – get it, hack it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336234",
"author": "John",
"timestamp": "2011-02-18T00:29:26",
"content": ":P Good point. And it might even force me to learn how to write a USB driver… Hmm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336246",
"author": "FightCube.com",
"timestamp": "2011-02-18T00:46:50",
"content": "@John – I just looked at the schematic on their website and the data lines are running to the uC. They provide all of the source code and everything to hack this puppy. Even if it’s not possible to do what you say, this thing is just too freaking nice to pass up. I just purchased one :) While I was on the site they sold 5 units… only 40 left!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336251",
"author": "Gabriel Anzziani",
"timestamp": "2011-02-18T00:48:41",
"content": "Hi, thanks for the article!Unfortunately the XMEGA doesn’t have a USB module. I can’t promise anything yet but I am trying to do a software USB implementation, the hardware for USB connectivity is already on the board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336309",
"author": "Fallen",
"timestamp": "2011-02-18T02:23:16",
"content": "OMG WANT",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336334",
"author": "FightCube.com",
"timestamp": "2011-02-18T03:16:54",
"content": "@Gabriel – Hey thanks for this! I’m very happy to hear you are working on the USB interface too. Even if the screen blanked out for a second while it was streaming data to the computer it would be FINE by me. First request would just be a streaming CSV dump, realtime or a buffer. Next might be a Bitmap Screenshot. You could probably get some help on a nice Processing App that would blow the screen up for some really interesting Remote viewing… and turning off the OLED while that was happening could free up some realtime to send data to the computer. Can’t wait to get my hands on it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336343",
"author": "vonskippy",
"timestamp": "2011-02-18T03:29:46",
"content": "If my hamster ever needs a OScope – I know what to get.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336386",
"author": "Ren",
"timestamp": "2011-02-18T04:53:47",
"content": "The video is well made.What is its highest trigger frequency?What is its lowest trigger threshold?What is the input voltage range and impedance?What does AWG mean?Maybe I can mount one on an eyeglass frame…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336414",
"author": "FightCube.com",
"timestamp": "2011-02-18T05:39:21",
"content": "@Ren – Go read the specs here:http://gabotronics.com/development-boards/xmega-xprotolab.htmAWG stands for Arbitrary Waveform GeneratorThis thing is pure gadget magic!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336417",
"author": "Gabriel Anzziani",
"timestamp": "2011-02-18T05:43:37",
"content": "Thanks Ren,1) The maximum sampling rate is 2MSPS, the analog bandwidth is 320kHz. The trigger can lock on the waveform in the entire bandwidth.2) On your second question, I don’t have that specified, but I did a quick test with a 40mV p-p sine wave, and it triggered ok (using the maximum gain stage of 78.125mV/div).3) The input voltage range is +/-20V, the input impedance is 1Mohm (so you could attach a 1:10 probe).4) AWG means arbitrary waveform generator. The device has three waveforms preprogrammed: sine, triangle and square. You can control the ampliture, frequency, offset and duty cycle of the waveform.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336436",
"author": "blue carbuncle",
"timestamp": "2011-02-18T06:44:56",
"content": "I think and hope John was joking :) Cool piece of kit! Thanks Gabriel for the quick data sheet. Gonna pick one up next month-trying to be responsible and build my 401k :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336572",
"author": "Foxdie",
"timestamp": "2011-02-18T11:04:25",
"content": "Gabriel, is it possible to make this into a standalone product like the DSO Nanoscope? I felt the DSO was let down by the fact it had only 1 channel, if you could make a better version of the DSO (including colour screen, on-board LiPo battery and 2 channels) for around the same price band you’d be on to a winner :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336672",
"author": "James",
"timestamp": "2011-02-18T13:15:03",
"content": "Sold out.Too bad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336714",
"author": "Paul",
"timestamp": "2011-02-18T14:57:27",
"content": "This is incredibly cool. Great work! I wish they hadn’t already sold out! I’ve been looking for a low-cost oscilloscope for doing simple stuff like verifying a clock waveform/frequency or looking for voltage sag. I can get old oscilloscopes, but they’re big and clunky. This is tiny enough to just toss into the drawer with my tools and pull it out when I need it. Brilliant!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336723",
"author": "chlen",
"timestamp": "2011-02-18T15:29:30",
"content": "The best stuff I have ever seen!!SUPER!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336771",
"author": "Gabriel Anzziani",
"timestamp": "2011-02-18T17:02:03",
"content": "@Foxdie Perhaps I could design an add on board, with a battery connector and charger, so you could connect the Xprotolab on top of it. It could also have 3.5mm audio plugs to connnect probes. I would need to find an enclosure. My to do list is growing exponentially…I have a feature request on my forums, you can add your requests there so I can keep track of them.@James I expect to have more units next month",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336874",
"author": "therian",
"timestamp": "2011-02-18T19:45:24",
"content": "@Foxdie DSO was let down by the fact it was really SLOW, this one even slower",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336914",
"author": "Gabriel Anzziani",
"timestamp": "2011-02-18T20:19:27",
"content": "@therian The DSO nano claims “1MHz bandwidth”, but applying a frequency above half its sampling rate will just get aliased (is it’s sampling rate 1MSPS or 2MSPS?).The Xprotolab has a 2MSPS and, to prevent (or reduce) aliasing, I set (by design) a low pass filter at 320kHz.This is what regular digital oscilloscopes do: they have an analog bandwidth much lower than the sampling rate to prevent aliasing.If users prefer not have the 320kHz filter, it can be disabled by simply removing three capacitors: C2, C4, C9.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336970",
"author": "therian",
"timestamp": "2011-02-18T21:15:08",
"content": "@Gabriel AnzzianiWhy you explaining the filter? it doesn’t change useful frequency of 2Mhz/10",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337253",
"author": "Ted",
"timestamp": "2011-02-19T05:12:57",
"content": "This seems like a good candidate for wearable EKG, anyone knowledgeable enough to comment?How about power usage, anyone figure that out yet?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339684",
"author": "ladz",
"timestamp": "2011-02-22T22:28:57",
"content": "Wow! This thing is great. It’s absolutely perfect for the purpose they show it for: simple small breadboard troubleshooting without the need to hook up huge external scopes and bench DMMs.Too bad they are sold out, I’d buy two!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "371755",
"author": "Fallen",
"timestamp": "2011-04-01T17:43:50",
"content": "Got mine!!Haven’t used it really, just powered it up. Wow it is tiny :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "371762",
"author": "Brett W. (FightCube.com)",
"timestamp": "2011-04-01T17:54:02",
"content": "My first thoughts on video here:http://fightcube.hackhut.com/2011/03/26/microscope-revisited-first-thoughts/Some updates… Gabriel has fixed some issues with the frequency measurement shown in my video. Also, he has implemented I2C decoding and has changed the hardware to support the USB interface for new orders. I’m super impressed with how awexome this scope is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1015243",
"author": "user",
"timestamp": "2013-06-12T03:01:07",
"content": "http://www.eevblog.com/forum/crowd-funded-projects/%28kickstarter%29-xminilab-portable-oscilloscope/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,272.869876
|
||
https://hackaday.com/2011/02/17/motion-tracking-prop-from-alien/
|
Motion Tracking Prop FromAlien
|
Mike Szczys
|
[
"gps hacks"
] |
[
"alien",
"gps",
"motion",
"prop"
] |
[Erv Plecter] likes to recreate movie props that actually work. This time around
he’s making the motion detector device from the original
Alien
movie. You’ll immediately remember this prop after seeing and hearing it in the video after the break.
For our money, the most brilliant part of that movie was the use of rhythmic sounds to boost the intensity of the tension in the viewer. [Erv]’s build captures that feeling, with the steady beat of sonar and the rising pitch of a ping as an object moves towards you. The device can easily track your own movement, as it contains both a GPS module and an electronic compass. He mentions that there is a motion sensor as well, but is a bit vague about how that part of the build works. Still, it’s a nice little piece which looks great despite not being quite finished yet.
| 24
| 24
|
[
{
"comment_id": "336114",
"author": "Doktor Jeep",
"timestamp": "2011-02-17T22:07:37",
"content": "Game over man, game over!!!!Hudson!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336124",
"author": "Sam",
"timestamp": "2011-02-17T22:23:32",
"content": "That was from Aliens, not “the original Alien movie”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336154",
"author": "David",
"timestamp": "2011-02-17T22:52:54",
"content": "This is sooooo cool!!! He nailed the sound effect. There are so many items from the Aliens movie that I wish existed in real life. This is one of them. The other is the locator watch segourney weaver gave newt the little girl. The motion sensing gun turret would also be a nice to have for Christmas. :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336197",
"author": "XiuiX",
"timestamp": "2011-02-17T23:50:43",
"content": "Well Done Sir!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336216",
"author": "revlchurch",
"timestamp": "2011-02-18T00:10:03",
"content": "my only suggestion is when the alien gets to zero location… a blood splatter screen pops up. LOL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336223",
"author": "Ch",
"timestamp": "2011-02-18T00:17:16",
"content": "Nup, no motion sensor, it looks just to be the GPS to track virtual blips.http://www.hyperdynelabs.com/products_elec_motionTracker.phpThis one on the other hand has an IR sensor that will detect about 5-8m in front… It shouldnt be too hard to make a mixed sensor module that uses IR/laser that could at least detect objects. Then use GPS/Radio for range (In a different mode)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336229",
"author": "JA",
"timestamp": "2011-02-18T00:23:56",
"content": "I’m so liking this!Big Alien movies fan here. I always name my main computer (running GNU/Linux) as Newt.@DavidThe locator and turret would be nice. The Aliens had so many gadgets in it that there are so much to choose from. Vehicles, too. I would like to have the M577 A.P.C. (Armored Personnel Carrier) =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336268",
"author": "colecoman1982",
"timestamp": "2011-02-18T01:25:03",
"content": "“There are so many items from the Aliens movie that I wish existed in real life.”I just want one, but it’s the Nostromo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336276",
"author": "moo",
"timestamp": "2011-02-18T01:45:27",
"content": "they mostly come out at night… mostly",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336330",
"author": "JB",
"timestamp": "2011-02-18T03:07:20",
"content": "Short, controlled bursts! Nice project!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336370",
"author": "nick",
"timestamp": "2011-02-18T03:56:25",
"content": "Very swank, compared to some of the prop versions I’ve seen of this. Would be more appropriate to the look n’ feel of the computers / menus in the films if it had a more simplistic, monochrome / text menu system though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336435",
"author": "blue carbuncle",
"timestamp": "2011-02-18T06:42:28",
"content": "Didn’t they do this with the DEFCON badge or whatever protoboard I’m not gonna get because I don’t go to cons???Not-a-Con is by far the dumbest and people should fear it like the plague…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336458",
"author": "erv",
"timestamp": "2011-02-18T07:43:12",
"content": "thanks guys ! I decided against the PIR sensor since it’s not a continuous motion detector. I preferred to use a 3D accel as a motion sensor for the inertial interaction mode, then I simplified it in purpose, to keep the gameplay of a quick demo enjoyable. I first started using the accel & compass as a full inertial unit but ended up using it as a continuous 3D to 1D motion senor/pedometer to get it work without prior knowledge of use required.Actual locator was considered too (GPS beacon unit). That’s for the next prop !Erv’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336612",
"author": "Mike",
"timestamp": "2011-02-18T12:15:17",
"content": "Best prop evar!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336698",
"author": "Macs",
"timestamp": "2011-02-18T14:34:30",
"content": "Why not make this an iPhone/Android App? Make some money! All the hardware is available on most phones especially since it is GPS and not an actual motion detector?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336699",
"author": "Jonathan Badger",
"timestamp": "2011-02-18T14:34:58",
"content": "The problem of accuracy which the creator mentions actually fits in with the actual device in the movies: “Hudson: It’s reading right man, look! Hicks: Well, you’re not reading *it* right!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336705",
"author": "Sigg3",
"timestamp": "2011-02-18T14:47:39",
"content": "I get a slight panic from hearing that noise..But what will it be used for? Paintball Alien Skirmish?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336727",
"author": "erv",
"timestamp": "2011-02-18T15:38:38",
"content": "@Sigg3 : no skirmish, just fun & demo during conventions where I’ll eventually display it, and personal collection.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337002",
"author": "f8l_0e",
"timestamp": "2011-02-18T22:17:11",
"content": "@ Davidhttp://www.youtube.com/watch?v=tfEpdVqOLXs&feature=relatednot to mentionhttp://hackaday.com/?s=sentry",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "340546",
"author": "quinlan",
"timestamp": "2011-02-24T03:28:11",
"content": "thats cool how can i order one of those i would pay top dollar for one thats for sure!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "383147",
"author": "vernon",
"timestamp": "2011-04-20T02:59:19",
"content": "make the star trek replicator!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "411350",
"author": "nonner242",
"timestamp": "2011-06-29T05:23:53",
"content": "I soooo want one!Very NICE!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "592042",
"author": "JL",
"timestamp": "2012-02-29T22:12:35",
"content": "Hello, I think it´s great. Would I get one? Will you make and sell one like this?Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "701109",
"author": "Bryan Williams",
"timestamp": "2012-07-12T13:06:40",
"content": "Hello, this looks a really cool. I had one of the master replicas but it fell part . Do you have any for sell , and you could be a rich man if you did!!! So, if you ever want to sell one I would buy one if the price was right for a low wage emt here in Texas USA. What does the item look like, does it look just like the film one ??Bryan",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,272.929868
|
||
https://hackaday.com/2011/02/17/model-rocket-radio-telemetry/
|
Model Rocket Radio Telemetry
|
Mike Nathan
|
[
"Arduino Hacks",
"Wireless Hacks"
] |
[
"radio",
"rocket",
"telemetry"
] |
[Ken] sent us his Instructable in which he used radio telemetry to
monitor the status of his air-powered model rocket through a series of launches
. His setup is centered around an Arduino IDE-compatible board that looks to be about the size of a Boarduino, but has the benefit of an embedded 915 MHz radio module. The vendor he used also sells a good handful of add-on modules which he used for his in-flight recording, including a barometric pressure monitor and a 3-axis accelerometer. During flight, the rocket constantly sends data to a base station, provided it stays within radio operating range.
For is initial tests, [Ken] launched his rocket four times, getting usable data on half of them. He found out some interesting things about his model rocket, including the fact that it creates a maximum launch force of 60 Gs. He has plans to revise his setup in the future, such as lightening the battery load as well as adding a high-G analog sensor for recording the forces at take off. This kit, or a more reasonably priced clone, would make for a great addition to any rocket buff’s inventory.
| 8
| 8
|
[
{
"comment_id": "336055",
"author": "hexmonkey",
"timestamp": "2011-02-17T21:12:19",
"content": "Would a stripped-down Chronos watch work for this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336116",
"author": "Liam",
"timestamp": "2011-02-17T22:09:15",
"content": "‘g’ is an acceleration, not a force.It’s expressed as a lower case ‘g’ because upper case ‘G’ is the universal gravitational constant (as in F=GMm/r^2).Sorry to be awkward, generally I detest nit-picking, but I thought you may appreciate the correction as it’s quite fundamentally different.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336160",
"author": "Aviator747",
"timestamp": "2011-02-17T23:07:27",
"content": "So I am assuming this is measuring Above Sea Level “ASL” and not Above Ground Level “AGL”. As the barometric pressure of the launch site is not being taken into consideration.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336237",
"author": "uC",
"timestamp": "2011-02-18T00:37:45",
"content": "They’re using this with water powered rocket!?Wow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336274",
"author": "Mike",
"timestamp": "2011-02-18T01:39:48",
"content": "Wow, I’ve never heard you can use gigaseconds to measure force. That’s new.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336559",
"author": "strider_mt2k",
"timestamp": "2011-02-18T10:43:43",
"content": "@Liam: I think in this case the correction was both warranted and gracefully given out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336724",
"author": "lwatcdr",
"timestamp": "2011-02-18T15:31:42",
"content": "I am really surprised that there isn’t a rocket Arduino already. Just take an Arduino and then add an accelerometer, temp sensor, and an air pressure sensor or two. Maybe and digital out or two for staging and recovery.I did find this which I think is kind of coolhttp://www.lunarnumbat.org/blog/index.php?/archives/12-Arduino-based-Rocket-flight-recorder.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "409544",
"author": "GuiltyPixel",
"timestamp": "2011-06-24T12:57:51",
"content": "Pretty cool. Doesn’t the recovery vehicle generate a metric sh*t-ton of electrostatic charge by friction though? I’d isolate the uC and peripherals and ensure that the exterior were able to conduct to ground on impact, and the electronics were unable to become a ground path. Just to be sure…. CMOS being all sensitive and everything.@hexmonkey “Would a stripped-down Chronos watch work for this?”Yeah there’s an idea. If I had rocket parts around, I’d go outside and test it right now. I’d bet it would work pretty well. That transceiver gets pretty good range with clear line-of-sight.guiltypixel.com",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.022378
|
||
https://hackaday.com/2011/02/17/more-ambient-lighting-monitor-hacks/
|
More Ambient Lighting Monitor Hacks
|
Mike Szczys
|
[
"Arduino Hacks",
"LED Hacks"
] |
[
"ambilight",
"amblone",
"phillips",
"transistor"
] |
[Christian Pigeon’s] first big project was to build this
ambient light system for his computer monitor
. This is based on the same concept as the Phillips Ambilight system which illuminates the area behind a television to match the color on the edges of the screen.
We’ve seen clones before
, but this is the first one we’ve come across
based on Amblone
.
With Amblone as a starting point [Christian] modified the code to work with the Arduino Duemilanove which has fewer PWM channels than its bigger brother, the Arduino Mega. No word on where he acquired the RGB LED strips that provide the illumination, but the driver boards are just protoboard with groups of resistors and transistors to switch the diodes on and off. Check out the video after the break to see effects he achieves with this setup.
[youtube=http://www.youtube.com/watch?v=GubwmI5KR64&w=470]
| 19
| 19
|
[
{
"comment_id": "335997",
"author": "Mohonri",
"timestamp": "2011-02-17T20:17:20",
"content": "I just had an idea for a purely analog version of this. Tap into a VGA cable, run each color channel through an integrating op-amp, and use the output of the op-amps to drive the LEDs. Sure, it doesn’t have the flexibility or configurability of a microcontroller-based device, but it’d cost about $1 worth of parts and wouldn’t require driver downloads, extra software, or any CPU usage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336013",
"author": "woutervddn",
"timestamp": "2011-02-17T20:36:20",
"content": "if mohonri pulls his idea off I might try to do the same thing.. once I’ve got my workbench ready this might also be a project I’ll be working on.It seems a pretty accurate and quick performing thing. If you’re on windows amblone seems pretty nice.. but for people running linux it might be a bigger pain.. :)Any advice for linux users?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336030",
"author": "paulvanwickd",
"timestamp": "2011-02-17T21:02:43",
"content": "I would love to see the analog version done or plans made. Could just be a extra coupling put in between the output for the monitor and monitor connection",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336036",
"author": "Jammin0",
"timestamp": "2011-02-17T21:08:36",
"content": "Amblone works nice in Windows 7 but without AERO running. Learned that after troubleshooting forever. The problem is that it only works with things being processed at the CPU level. Blu-Ray is a no go or else I would still have my amblone system setup.Here’s a source for RGB SMT LEDs. A pain because you have to wait for them to ship from China but decent quality especially for the price. The reviews on dealextreme are pretty spot on.http://www.dealextreme.com/p/rgb-multicolored-1-meter-30-led-6w-light-strip-dc-12v-14965",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336062",
"author": "Whatnot",
"timestamp": "2011-02-17T21:27:45",
"content": "@Mohonri less than $1 eh, I’m not sure why you have to get silly about the whole thing like that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336108",
"author": "Bernhard",
"timestamp": "2011-02-17T21:56:21",
"content": "hey, this stuff is old as hell. They searchword is magic “Atmowin”.e.g.http://www.ledstyles.de/ftopic11465.htmlI build a diffferent 64 channel light, used 4 tlc5941 and rgb multiplexing. Not completely finished yet, an never-ending project.http://www.youtube.com/watch?v=lrWvQlIEMc8&feature=player_embedded",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336164",
"author": "js",
"timestamp": "2011-02-17T23:11:49",
"content": "These would probably do the job for LED strips:http://www.adafruit.com/index.php?main_page=product_info&cPath=37&products_id=285",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336199",
"author": "Christian Pigeon",
"timestamp": "2011-02-17T23:52:57",
"content": "I found the LED strips on Dealextreme.com but I cant seem to find the link anymore. The flexible 1m one is actually much better deal. Mine were 12 inches solid, 18 RGBs and were 10$.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336249",
"author": "Jeditalian",
"timestamp": "2011-02-18T00:48:33",
"content": "does this work better than my hack, duct-taping another monitor to the back of your monitor, flipping horizontally and putting a mirror on the wall (flipping/mirror optional) ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336257",
"author": "Christian Pigeon",
"timestamp": "2011-02-18T01:05:34",
"content": "@JeditalianLol XDand when I was researching this project I really wanted to check out the VGA option, but I didn’t have the knowledge yet… If I research more and figure something out, Ill post",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336270",
"author": "Kaboof",
"timestamp": "2011-02-18T01:27:50",
"content": "@Bernhard woah nice.. that’s how I imagined it should be done.@Jeditalian: ROFL XD would probably be cheaper too, at least for a monitor, a 15incher behind it would cost less than the LEDs…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336292",
"author": "Grimm",
"timestamp": "2011-02-18T02:06:47",
"content": "Go Milkdrop! You can get that visualization really easily if you download mediamonkey or winamp. The one in the post picture is one of my favorite ones (A Million Miles from Earth is what it’s called if I remember right) Makes the ambient lighting look that much cooler.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336316",
"author": "Christian Pigeon",
"timestamp": "2011-02-18T02:29:02",
"content": "@Bernhard Thats very impressive! I see you use addressing which is an obvious choice for this kind of build. Now thats really something to work towards! I just love RGB light projects :D out of curiosity how much for those parts? and where did you find them?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336673",
"author": "Bernhard",
"timestamp": "2011-02-18T13:24:27",
"content": "@pigeon: its not my build, mine never completely worked, it is still undocumented.I used 4 TLCs, in a SPI chain (strangely, the last one always gets hot). I used common cathode rgb superflux leds. The cathodes of 16 go to the TLC current sinks. All R G and B Anodes are sourced by single p?-channel mosfets, for the multiplexing.I set the tlcs to the desired pwm states for “red”, turn on the red mosfet, and do one pwm cycle via bit-banging 2^10 clocks (The TLCs need external clock for the pwm). I disable red, set intended green pwms, and enable the green mosfet, …Problem: Data transfer is via USB-TTL 115kbaud, basically all the time, 64x3Bytes take a while to send. Then, there is a lot of currents and noise. So i get errors. And the serial sometimes looses bytes resulting in shift. Error correction decreases the transfer rate, and decrease the refresh rates (I partially reprogrammed Atmowin therefore).Also, processing of serial input disturbs the TLC clock bit banging, and causes flicker.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336675",
"author": "Bernhard",
"timestamp": "2011-02-18T13:29:34",
"content": "@pigeon: 20€ for the tlcs, 5€ atmega168, 12€ usb-ttl, 40€ IIRC for the LEDs. 10€ for the diffusor. 5€ for the cnc-isolaten milled pcbs. prob ~100€ total",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336680",
"author": "electrosthetics",
"timestamp": "2011-02-18T13:36:25",
"content": "DealExtreme is really backed up at the moment because of the Chinese holiday, but they have the awesome RGB ropes. (afaik, the same that adafruit sells) But buy from adafruit if you want it this year!Here are some links I compiled on these cool ambient lighting systems:http://brunql.github.com/ambilight/http://saikoled.com/http://hardware.slashdot.org/story/10/11/19/1825242/Arduino-Based-High-Powered-LED-Lighting-Over-Wi-Fi?from=rsshttp://siliconrepublic.blogspot.com/2011/02/arduino-based-pc-ambient-lighting.htmlEspecially interesting are the open source high power can lights, those would be boss with a color averaging app. I put all these in this compilation post here:http://electrosthetics.blogspot.com/2010/11/things-are-coming-together-now.htmlI’m still waiting for my DX RGB strip order to ship, it’s been a month. My original Philips Ambilight system is barely holding together.. both main wallwashers are basically dead, although the satellites work still.I’m glad people are still working on these systems, they really set a cool mood around your PC. (not to mention games)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336830",
"author": "Jeff",
"timestamp": "2011-02-18T18:23:22",
"content": "I like Mohonri’s idea of monitoring the VGA pins. It would be cool to adapt this to TV by monitoring the composite or component video output of a TV, although I don’t know anything about those standards.Anybody know how to get started hacking TV outputs?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336932",
"author": "Christian Pigeon",
"timestamp": "2011-02-18T20:38:18",
"content": "Well about the VGA adapter idea, i guess the best way to go would be to try to get the vertical scan signal, and find the time it takes to do the whole screen, then chop that in half and make a colour median or something of the sort. Ill research and post when I have the time. :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336957",
"author": "Mohonri",
"timestamp": "2011-02-18T20:57:35",
"content": "For the analog version, you’d just have to make sure that the time constant on the integrating amplifier is large enough to average at least an entire refresh cycle. So let’s take a 60Hz monitor, and make the time constant 33mS. The voltages on the VGA lines are 0-0.7V, but even with the porch and blanking interval, you’d just have to set the gain accordingly.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.138986
|
||
https://hackaday.com/2011/02/17/fingertip-heart-rate-monitor/
|
Fingertip Heart Rate Monitor
|
Chris Nelson
|
[
"Microcontrollers"
] |
[
"fingertip",
"heart rate",
"infrared",
"pic"
] |
[Embedded lab] has a nice
tutorial on building your own heart rate monitor
. The monitor works by shining infrared light into the fingertip and looking at the changes in the reflected infrared signal caused by a heartbeat. The IR detector produces a very small AC signal so a couple of op-amps are used to filter and amplify the signal. The output of the filter circuit is then read in by a PIC16F628A, which counts the beats and displays it on a seven segment display. This might be a good project to try if you’ve got your microcontrollers down and you are looking to learn some analog electronics. Its noted at the end that the two main problems with building a circuit like this are going to be cross talk and adjusting the filters. The infrared diode and receiver should be close to each other to allow maximum reflection but you also need to make sure that you don’t allow the emitter to shine directly into the detector because the reflected light will be drowned out by the bright emitter.
[via
make
]
| 12
| 12
|
[
{
"comment_id": "335961",
"author": "st2000",
"timestamp": "2011-02-17T19:24:34",
"content": "You came this far, you might as well take the next step. I understand that if you also do the same w/visible light then look at the difference between the infrared and visible detectors you can infer blood oxygen levels. Anyone care to comment?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335971",
"author": "zing",
"timestamp": "2011-02-17T19:41:16",
"content": "Sure, you could easily do a relative oximeter. One was on HaD a year ago.http://hackaday.com/2010/01/06/pulse-oximeter/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335993",
"author": "Jamie",
"timestamp": "2011-02-17T20:10:50",
"content": "Nitpick: This will allow you to measure your pulse, not your heart rate. The two measurements will be about the same when your body is at rest, but can differ when cardiac stress is varied (such as during exercise).Neat hack, nonetheless. It could be used approximate your resting heart rate which is a good indication of your overall fitness level.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336127",
"author": "Tom",
"timestamp": "2011-02-17T22:27:17",
"content": "@Jamie: Your pulse and heart rate SHOULD be the same, unless you have some kind of arrythmia going on (Like premature contractions, which dont pump any blood out as the heart hasnt filled yet)….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336170",
"author": "Nick",
"timestamp": "2011-02-17T23:27:43",
"content": "I love the hand drawn schematics!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336174",
"author": "Solidacid",
"timestamp": "2011-02-17T23:34:51",
"content": "AWESOME, i am building a heart rate monitor at this very moment! great timing! :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336326",
"author": "Jamie",
"timestamp": "2011-02-18T02:50:00",
"content": "@TomNot necessarily:http://www.springerlink.com/content/n83l685g253n1148/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336439",
"author": "blue carbuncle",
"timestamp": "2011-02-18T06:49:03",
"content": "I remember my caretaker in the 90s had a Casio watch that could do this and take blood pressure…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337882",
"author": "Whatnot",
"timestamp": "2011-02-20T06:04:15",
"content": "It’s odd but they had circuits like this in the hack scene years before it became stock and trade in hospitals to have the finger clip monitoring.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2342207",
"author": "polytechnick",
"timestamp": "2015-01-11T22:57:17",
"content": "I believe they are measuring the amount of oxygen in your blood using the same principal. I always thought the little red light clip they put on your finger in the hospital is for pulse measurements, turns out – it’s an oxygen monitor. And I believe someone had mentioned to me that they do not actually measure heartrate with it, although, apparently, they could. Not accurate enough?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2743351",
"author": "Chirag Solanki",
"timestamp": "2015-10-06T22:47:25",
"content": "Could Anyone Pls. Suggest me IR Sensor And OpAmp For Heart rate Monitoring…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2814091",
"author": "Fridge Chick",
"timestamp": "2015-11-28T23:02:24",
"content": "No",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.39455
|
||
https://hackaday.com/2011/02/19/bluetooth-tomy-omnibot-hack/
|
Bluetooth Tomy Omnibot Hack
|
Mike Nathan
|
[
"Robots Hacks",
"Toy Hacks"
] |
[
"bluetooth",
"robot",
"servo"
] |
[DJ Sures] sent us
his most recent hack
, and it’s one that is sure to please those who enjoy a good dose of 80’s nostalgia. He located a Tomy Omnibot on eBay and snatched it up immediately. While he was waiting for it to arrive, he planned out what he would add to it once it showed up at his door. Once the robot was delivered, he cleaned it up, painted it, then got down to business.
The original robot had no ability to move its arms or head, so he immediately added servos to enable those actions. A wireless camera was inserted between the Omnibot’s eyes, and a wireless mic was mounted in his chest. He has also added some features found in his previous projects, such as voice recognition, visual recognition, voice synthesis, and the ability to remotely control the bot. He plans on adding an ultrasonic ping sensor and IR floor sensors in the near future. This is a great build so far, and it sounds like he has plenty more in store.
Be sure to stick around for a video of the robot in action, and if you are interested in some of [DJ Sures’] previous work,
check
these
out
as well.
[youtube=http://www.youtube.com/watch?v=qPcgoNBsedU&w=470]
| 10
| 10
|
[
{
"comment_id": "337608",
"author": "ali",
"timestamp": "2011-02-19T19:33:08",
"content": "I must say that the bot is cute! :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337613",
"author": "Gilliam",
"timestamp": "2011-02-19T19:41:55",
"content": "if i didnt have plans of making my $20 goodwill-found roomba clean my room… i would have a roomba to donate for floor ir sensors :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337634",
"author": "NatureTM",
"timestamp": "2011-02-19T20:06:50",
"content": "Nice build, nice time-lapse video. It makes me regret taking apart my mobile armitron when I was 5. My reassembly skills were lacking back then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337671",
"author": "Pat_loonytoon",
"timestamp": "2011-02-19T21:05:17",
"content": "WALL-EEEEEEEEEEE!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337758",
"author": "Jesse Smith",
"timestamp": "2011-02-20T00:10:07",
"content": "There is a second video up now!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337826",
"author": "strider_mt2k",
"timestamp": "2011-02-20T03:35:44",
"content": "NICE build!I remember wanting one of those so badly, and now I do all over again!Well done sir.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337902",
"author": "goattuber",
"timestamp": "2011-02-20T07:02:20",
"content": "I had this same robot when I was a kid. The remote had one button. Press it once and he’d roll forward, press it again and he’d back up and turn.About a decade later I gutted him, sealed all his seams, and added an air pump with a switch mounted on his back to turn him into a bong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337917",
"author": "MikeJ",
"timestamp": "2011-02-20T07:40:35",
"content": "Aaaaah the 80’s… when I thought robots like this one would actually do useful things around my house for me….I miss it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338008",
"author": "Jesse Smith",
"timestamp": "2011-02-20T11:07:27",
"content": "goattuber, no you had something different. The omnibot was programmable:http://en.wikipedia.org/wiki/Omnibot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338057",
"author": "woutervddn",
"timestamp": "2011-02-20T13:14:31",
"content": "Hero..",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.543467
|
||
https://hackaday.com/2011/02/19/emulating-oric-1-floppy-disk-hardware/
|
Emulating Oric-1 Floppy Disk Hardware
|
Mike Szczys
|
[
"classic hacks",
"computer hacks"
] |
[
"cpld",
"emulation",
"floppy",
"oric atmos",
"oric-1",
"pic"
] |
This device is called the
Cumulus and it’s used to emulate the floppy disk
hardware for
Oric-1 and Oric Atmos
computers. These 1980’s era computers included an expansion slot to which you could connect a floppy drive. That module, called a Microdisc system, also included the driver circuit which means you can’t just use a modern-day floppy drive as a replacement. [Retromaster] sidestepped the need for magnetic media all together by building an SD card interface which emulates the original module. We can tell by the use of a color screen and clean board layout that a lot of love went into the project. A CPLD implements the communications protocol used by the Microdisc system and creates all of the registers that would have been found on the original hardware. A PIC takes care of the SD card communications and the user interface.
With the exception of
comforting noises
, we’d bet there are few who have fond memories of using floppy disks. No wonder we’ve been seeing
hacks to replace them
quite a bit lately.
| 5
| 5
|
[
{
"comment_id": "337604",
"author": "DeKay",
"timestamp": "2011-02-19T19:26:26",
"content": "Nice. He also has a really good writeup of his PCB fabrication techniques that are well worth a read also.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337794",
"author": "TheCitySpiders",
"timestamp": "2011-02-20T02:09:11",
"content": "It is also a good note that backing up old floppies can be an asset and a treasure trove for future hackers-to-be.And with current media capacity, that is easier than ever as well as the ability to repair corrupt files in a moments notice :D.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337808",
"author": "Ibisum",
"timestamp": "2011-02-20T02:51:47",
"content": "Oric lives! Atmos rules! Color clash ftw! Xenon, the letter Q and, happ dogs and char harriers, easily within reach! Paper 5;ink 3;",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339621",
"author": "sgf",
"timestamp": "2011-02-22T20:08:44",
"content": "For some reason I cannot articulate, this project makes me very happy. It’s all the weirder for the fact I’ve never used an Oric…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1109339",
"author": "Dbug",
"timestamp": "2013-11-23T14:39:38",
"content": "Hi everybody,You may be interested in knowing that after some false starts, high hopes and tears, we seem to finally be going somewhere with this project.We have opened preorders for the Cumulus device, you can read more on the official thread:http://forum.defence-force.org/viewtopic.php?f=23&t=1012(And yes, I’m posting similar messages on all Cumulus related posts, mostly because it’s probably going to be a one of a kind event, I doubt we will do a second batch after that, way too much of a hassle to organize!)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.735638
|
||
https://hackaday.com/2011/02/19/measure-earths-rotation-with-playstation-move/
|
Measure Earth’s Rotation With PlayStation Move
|
Mike Szczys
|
[
"classic hacks",
"Playstation Hacks"
] |
[
"earth",
"gyroscope",
"move",
"turntable"
] |
This somewhat odd-looking
apparatus is being used to measure earth’s rotation
. At the heart of the system is a PlayStation Move controller, used because of its dual-axis gyroscope which has the highest dynamic range compared to other available products like the Wii Motion Plus. It rests on a column perched atop a record player that was chosen because of its precision rotation rate. The two rings that flank the controller make up a
Helmholtz coil
which is used to cancel out the earth’s magnetic field which was found to be interfering with measurements taken by the Move controller. By recording data over time the experimenter can prove that the earth is indeed rotating, as well as ascertain longitude data and find true north. Check out the data-packed video after the break.
[youtube=http://www.youtube.com/watch?v=zkYWRgQmBKE&w=470]
| 19
| 19
|
[
{
"comment_id": "337564",
"author": "Truth",
"timestamp": "2011-02-19T17:17:46",
"content": "Truly Brilliant",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337565",
"author": "Alcyone",
"timestamp": "2011-02-19T17:17:59",
"content": "Geekiest experiment ever!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337567",
"author": "Repminister",
"timestamp": "2011-02-19T17:34:30",
"content": "What is the demostration of PlayStation Move at 0:38 in the youtube video ? does anyone know ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337569",
"author": "Piku",
"timestamp": "2011-02-19T17:35:03",
"content": "Hmm… why am I seeing an ad for scientology between the video and the reader comments?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337578",
"author": "mad_max",
"timestamp": "2011-02-19T17:49:19",
"content": "@Piku because you don’t have an ad-blocking program.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337579",
"author": "Frits Rincker",
"timestamp": "2011-02-19T17:50:51",
"content": "This is by far the most awsome thing I ever learned about. Is up there with the wooden base model rc fighter jet..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337585",
"author": "tooth",
"timestamp": "2011-02-19T18:10:37",
"content": "that is pretty cool. I could not think of what they were going to do with PS3 move seeing how the wii and 360 was hacked to death.@ pikuscientology!!!!! RUN RUN FOR YOUR LIFE TOM CRUISE WANTS TO EAT YOUR SOULS FACE AND FORCE LIGHTNING YOUIN TO A GIANT VOLCANO OF DOOM!!!!!!! DOOOOOOOOOOMMMMMMMMM!!!!! MMMMMHAHAHAHA (RUBS HANDS VIGOROUSLY) HE HAS OPRAH SOULS FACE ON DEEP FREEZE FOR LATER CONSUMPTION.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337590",
"author": "Pyrodogg",
"timestamp": "2011-02-19T18:30:28",
"content": "I love this bit “if [they] were too accurate, ITAR might classify them as missile components. This is why we can’t have nice motion tracking.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337606",
"author": "caleb",
"timestamp": "2011-02-19T19:30:44",
"content": "cool.@pikubecause the scientologists are gearing to take over the world, like the christians once did. our best bet is to stop them now!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337611",
"author": "Zmaster",
"timestamp": "2011-02-19T19:36:59",
"content": "Geekiest experiment I’ve ever seen, and he managed to make it hilarious also!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337626",
"author": "Kaj",
"timestamp": "2011-02-19T19:53:40",
"content": "Awesome, looks like something built by Doctor Who.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337647",
"author": "Psion",
"timestamp": "2011-02-19T20:26:39",
"content": "Kaj … odd, I had exactly the same impression with the spinning thing and the bloop-ping-bloop-bloop noises. It reminded me of something from an old Pertwee-era show. And then there’s the subversive snark evident in comments about ITAR and “community standards”.I suggest we check this fellow for a second heart.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337681",
"author": "ferdie",
"timestamp": "2011-02-19T21:25:11",
"content": "@kaji must think on doctor whoor torchwood when i see iti love this hacks well done",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337695",
"author": "Bartzilla",
"timestamp": "2011-02-19T21:43:15",
"content": "Latitude (N-S), not longitude (E-W). It’s easy to get them reversed, but it’s an important distinction in technological history. Before the development of accurate timekeeping it was the East/West position on the Earth that sailors found impossible to measure. Your North-South is straightforward to figure out, at least in clear weather.Before I realized that this was a flub I had a moment of cognitive dissonance where I thought “OMG! This doohicky could be used for navigation in place of time keeping!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337770",
"author": "nikescar",
"timestamp": "2011-02-20T00:20:07",
"content": "If I had this much brain power I’m sure I would use it for evil.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338094",
"author": "nebulous",
"timestamp": "2011-02-20T15:06:53",
"content": "@ KajOddly, I’m watching Doctor Who on my other screen. The First Doctor at the moment; the props looked less impressive than this actual device :)I’m not quite sure I understand the hack. Will have to read up later…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338763",
"author": "Robot",
"timestamp": "2011-02-21T16:13:51",
"content": "Thank you for your use of math and control theory / models. It is about time that hackers up their game to that of academe.– Robot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338801",
"author": "James",
"timestamp": "2011-02-21T17:32:51",
"content": "Re: ITAR.. doesn’t this hack now classify what he’s done as a missile guidance system? ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "359294",
"author": "Roman Dulgarov",
"timestamp": "2011-03-15T20:46:00",
"content": "I wonder if the “wobble” from the quake in japan would been detectable. Considering that the pole is moving at 40mph (according to some sources) thats pretty significant.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.688861
|
||
https://hackaday.com/2011/02/19/plug-in-module-lies-about-news-at-coffee-shops-real-or-fake/
|
Plug-in Module Lies About News At Coffee Shops. Real Or Fake?
|
Mike Szczys
|
[
"Wireless Hacks"
] |
[
"arp",
"linux",
"man-in-the-middle",
"newstweek"
] |
[Mike] sent in a tip about Newstweek, and we’re turning to our readers to tell us if this is real or if we’re being trolled.
The link he sent us
points to a well-written news-ish article about a device that plugs into the wall near an open WiFi hotspot and performs something of a man-in-the-middle attack on devices connected to the access point. The article describes the device above as it observes, then spoofs the ARP table of the wireless network in order to inject fake news stories in pages you are reading. Apparently once it boots, the small box phones home for commands from its maker over a TOR connection.
The box reminds us of the
Sheevaplug
so it’s not the hardware that makes us question the possibility of the device. But look at the Linux terminal screen readout. It shows a prompt with the word ‘newstweek’ in it. That’s the address of the site the article is hosted on, giving us a strong sense of being trolled.
What do you think, real or fake? Let us know (and why you think that) in the comments.
| 60
| 50
|
[
{
"comment_id": "337515",
"author": "egasimus",
"timestamp": "2011-02-19T15:38:57",
"content": "http://vagueterrain.net/content/2011/01/newstweek-network-permeability-and-headline-hacking",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337516",
"author": "Chris Muncy",
"timestamp": "2011-02-19T15:43:47",
"content": "I’d say it’s real. Look at the pineapple that Darren Kitchen over at Hak5 created. essentially this is the same thing but taking it a step further.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337518",
"author": "Random reader",
"timestamp": "2011-02-19T15:46:52",
"content": "off topic, making an automated wifi sniffer to leave at coffy shops and alike to sniff out “useful” info could be both an issue and pritty effective, not sure how many people use credit card details or paypal while at random wifi’s but more than enough people check there emails and throw in personal info",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337520",
"author": "Chris Muncy",
"timestamp": "2011-02-19T15:54:40",
"content": "Look at all of the sheep that gather in public places like coffee shops and attach to an SSID named “FREE WIFI” connection that does the exact same thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337522",
"author": "dr_welt",
"timestamp": "2011-02-19T15:58:26",
"content": "It’s a device by two artists. (1 minute via google) But it actually works. Heared about it at CCC conference last year.http://blogs.computerworld.com/17820/hackers_use_hidden_device_to_manipulate_news_at_wi_fi_hotspots",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337523",
"author": "iToast",
"timestamp": "2011-02-19T15:59:45",
"content": "Real, newstweek might have been injected into it, or what ever >_> But they know who made them",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337526",
"author": "T045T",
"timestamp": "2011-02-19T16:05:46",
"content": "Looks legit to me – judging from the link egasimus already posted and another one (http://www.imperica.com/features/newstweek) it seems like it’s an art project – and a pretty complex and well-executed one, too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337532",
"author": "Brent",
"timestamp": "2011-02-19T16:10:58",
"content": "Seems plausible, I did something similar to a workmate who always checked the stock market instead of working. I whipped up a program to perform an ARP man in the middle, DNS spoofing and started modifying his stock ticker info :) The numbers were wildly incorrect so he was not going to act on them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337534",
"author": "Ben",
"timestamp": "2011-02-19T16:12:22",
"content": "The article is a artistic fabrication for sure, but the device itself is probably real.The article has way too much technical information to be a real news article. The ‘security expert’ mentioned in the article, Zdzislaw Kotla, is actually a Polish Olympic sailor. The links on the top banner are all useless. The pictures at the end of the article link to the authors’ homepages. The last line is pretty funny: “Note the black hat worn by what may be a colleague in the first photograph.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337539",
"author": "Blake",
"timestamp": "2011-02-19T16:19:55",
"content": "Feasible, but this story is probably part of someone’s college project on media manipulation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337544",
"author": "Martin",
"timestamp": "2011-02-19T16:24:42",
"content": "Just take a look athttp://blogs.computerworld.com/17820/hackers_use_hidden_device_to_manipulate_news_at_wi_fi_hotspots",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337545",
"author": "dracosilv",
"timestamp": "2011-02-19T16:25:30",
"content": "registrant-firstname: Howardregistrant-lastname: Lesterregistrant-organization: A.J. Lester & Associates, Inc.registrant-street1: 9898 Bissonnet STregistrant-street2: Suite 678registrant-pcode: 77036registrant-state: TXregistrant-city: Houstonregistrant-ccode: USregistrant-phone: +1.7132704277registrant-email:callmehowie@hotmail.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337546",
"author": "sscope",
"timestamp": "2011-02-19T16:25:33",
"content": "Focussing on the site itself;1. None of their “most popular” stories show any hits in a Google search (actually, none of their stories have).2. I cannot find any other stories on the site as the headlines are not links (neither are the “Subscribe”, facebook or twitter links).3. The images in the article are stock photos (despite one being captioned to imply the woman in the picture is the woman in the story)4. I haven’t seen this story on any other sites.5. there is a link at the bottom of the page to JulianOlivier.com (in the copyright list, labeled “Oliver”). A few co-incidences arise on there.Based solely on the site reporting it, I call troll.I can’t comment on the technical aspect of the device as I don’t know enough about this sort of thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337550",
"author": "xorpunk",
"timestamp": "2011-02-19T16:34:57",
"content": "Of course an SBC in a AC box can do it, why it would use TOR to connect to the MC, or how that even remotely hides MC, is anyones guess…Also most APs have ARP checksums these day..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337551",
"author": "sscope",
"timestamp": "2011-02-19T16:36:16",
"content": "On watching the video;1. The “device” is referred to as the “Newstweek device”2. The presenter uses an N900 phone for the demonstration. The same model was reported as handed into a police station in the article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337552",
"author": "Adam Outler",
"timestamp": "2011-02-19T16:38:08",
"content": "Yes it is real.The beauty of the internet is that every position is absolutely equal to the next.. Every hop retransmits data. This retransmission has the potential ability to modify the data it receives. Because of this, the “Backbone” creates a hierarchy.If you’d like to recreate a ARP redirection, download a program on your Android telephone called “Shark for Root”. It performs an ARP Spoofing where every time someone requests “who is the router”, your phone will say “I’m the router”… All data goes through your phone and is logged. The data is then retransmitted to the Router and noone is the wiser.Now, This is a simple spoof. It is used for diagnostic purposes. When you want to find out about problems on networks, you use a protocol analyzer with ARP spoofing capabilities. It allows you to look at the packets being sent and see what’s causing the problems you are experiencing.If you take this diagnostic process one step further… As data is received, it can be modified before it is sent out. This is a man-in-the-middle attack. It is not a high-tech or hard to recreate process. It’s a matter of working with data at a low level of the OSI model.If you’d like to make your own man-in-the-middle.. Get a small ARM computer, like a Android phone, get linux up and running, then find a way to compile Ettercap onto it. All data received by Ettercap can be changed and modified. Also, look up dnsspoof, webmitm fragrouter and ssldump.If you want to go a bit bigger, you can install Backtrack onto a small i386 nettop computer and it has all the tools you need. Set up the backtrack computer as a firewall on your network and let it rock’n’roll.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337554",
"author": "Rick Autry",
"timestamp": "2011-02-19T16:42:45",
"content": "Has anybody tried scanning the barcode on the screwdriver?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337555",
"author": "foo bar",
"timestamp": "2011-02-19T16:54:30",
"content": "Remembers me of that guy who had a open wireless network where he installed a transparent web proxy that would replace all (or some) images on any web page with images from some cats web site, which then got complains of people that said they hacked their computer. Hilarious! Cannot find the URL right now, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337556",
"author": "Isa",
"timestamp": "2011-02-19T16:56:11",
"content": "I’d say it’s real. Clicking the “read more” link takes you here:http://newstweek.com/2011-01-07-device-distorts-news-on-wireless-neworksWhere at the bottom of the page, links tohttp://selectparks.net/~julian/andhttp://k0a1a.net/can be found. Both appear to be artists dealing the the realm of the crossover of art an technology.The damning evidence appears on one of the above sites:http://k0a1a.net/redbox/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337558",
"author": "kevin",
"timestamp": "2011-02-19T17:01:35",
"content": "awesome idea! however the picture looks fake.no DC power supply.220 VAC != 3.3/5 VDC",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337566",
"author": "Don Faulkner",
"timestamp": "2011-02-19T17:21:28",
"content": "A bit of poking around on the newstweak site reveals the following URLs:http://www.imperica.com/features/newstweekhttp://blogs.computerworld.com/17820/hackers_use_hidden_device_to_manipulate_news_at_wi_fi_hotspotsSo, this incarnation of this gadget is “art,” but it has real implications. This has been going on as long as there’ve been hot spots.The potential for monitoring of those in the cafe (or wherever) is a big deal, but the reverse risk (of a remote attacker being able to appear to be anywhere) is a big deal too. Now you can’t trust the logs of what you saw. For all you know I was half way across the world when I published that tweet or facebook message from the cafe across the street.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337568",
"author": "FaultyWarrior",
"timestamp": "2011-02-19T17:34:37",
"content": "Whether or not this device is legit or not, it *is* possible to pull off. To pull it off, not only would you need the website to not be using SSL, but you’d need an HTTP server running, plus a way to re-format incoming pages on-the-fly. Regardless, with something like a Sheevaplug, I could see it being possible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337570",
"author": "JTaylor",
"timestamp": "2011-02-19T17:36:20",
"content": "I call shenanigans…look at the top image on that site where they clearly show a picture of “newsweek” magazine with this device on te cover…pretty poor photochopping.http://newstweek.com/?2011-01-07-device-distorts-news-on-wireless-neworks.head.129503152513and look at some of the “headlines” on some of te side articles…12000 year old bong found in space junk….yeah",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337571",
"author": "sqnewton",
"timestamp": "2011-02-19T17:37:01",
"content": "who knows if the device is real, however, the website is so rogue. Not even the fake links at the bottom of the page work and the main domain is about the same news all over. So rogue and fake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337573",
"author": "Luke",
"timestamp": "2011-02-19T17:41:04",
"content": "Yes this is an Abocom WAP2101 (Board number M01-W2101-E10 as per photo) – Google it for the product spreadsheet, top of the list of results.Useful info can be also found here detailing the wireless chipset, OpenWRT compatibility etc (http://translate.google.co.uk/translate?hl=en&sl=ja&u=http://mizupc8.bio.mie-u.ac.jp/pukiwiki/%3FPlanex/GW-MF54G2&ei=W-9fTfC-CMPJswb_34y2CA&sa=X&oi=translate&ct=result&resnum=1&sqi=2&ved=0CB0Q7gEwAA&prev=/search%3Fq%3DM01-W2101-E10%26hl%3Den%26prmd%3Divns)It has an atheros chipset, and so would be compatible with Karma and Jasager (http://www.digininja.org/jasager/) as was demonstrated on hak5 as Chris Muncy correctly mentioned and so there is a great possibility it is real!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337574",
"author": "the old rang",
"timestamp": "2011-02-19T17:42:50",
"content": "I don’t understand the need for a device to ‘lie about the news.’If you are talking about the media in this country, they quit any semblance of reporting ‘truth’ decades ago",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337575",
"author": "mike",
"timestamp": "2011-02-19T17:43:20",
"content": "Seriously? The site is obviously satire. There is an article about an outer space bong and yet you still question if is it ligit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337577",
"author": "Gerrit Coetzee",
"timestamp": "2011-02-19T17:49:09",
"content": "The device is most likely very real.http://blogs.computerworld.com/17820/hackers_use_hidden_device_to_manipulate_news_at_wi_fi_hotspotshttp://www.imperica.com/features/newstweekNewstweek.com is their site where they advertise this device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337580",
"author": "Gert",
"timestamp": "2011-02-19T17:52:11",
"content": "Never ever use hotspots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337583",
"author": "D-Lite",
"timestamp": "2011-02-19T18:05:36",
"content": "This seems to me more like an art project or “prove of concept” to remind people not to believe every that they may read on the internet – by showing how easy it is to manipulate information. My guess: the device is real, the story behind it is not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337596",
"author": "Stephane",
"timestamp": "2011-02-19T19:03:43",
"content": "I think it is a Fake, you can only see 1 antenna on the device, but you need two because you need at least 2 network endpoints to be the man in the middle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337610",
"author": "Joe Catts",
"timestamp": "2011-02-19T19:36:37",
"content": "OK so if i read the page right. it injects or changes news? As far as making changes to a page, what good is this even if it were true? A random person looks at a random news page and see something not real. if he forwards it to a friend the friend is going to see the real story (unless the link changes also) and most people will Look at multiple sources of news for the “full story” thus any misinformation would stand out. This being the case it is a lot of work for iffy results.On the other hand if it were placed there by someone (cia, kgb, police, others)to funnel targeted information to a targeted person who was known to come often to an establishment (we are creatures of habit) then it might be useful and true.As for a wi-fi snoop .. all bets are off. I am sure if it is real it dose just that alone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337612",
"author": "mark",
"timestamp": "2011-02-19T19:41:28",
"content": "What is the point in making a real one if you can create your own false news stories about… using a device that changes news stories.If this is real, and I’m guessing it’s not, it’s probably some kind of art piece/social commentary project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337636",
"author": "NatureTM",
"timestamp": "2011-02-19T20:14:03",
"content": "Look into ettercap filters. This should be possible on any linux device with a wifi card. The card wouldn’t even need to support injection. It would even work over SSL, but the targets would get invalid certificate warnings that they would most likely ignore anyway. As far as modern routers having ARP table checksums like xorpunk mentioned, you’d be surprised how many modern routers this works on. A lot of new routers may have this feature, but I come across one yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337649",
"author": "Curtman",
"timestamp": "2011-02-19T20:28:10",
"content": "I recognize the right-hand image at the bottom from this news story:http://www.winnipegfreepress.com/canada/old-man-mask-used-to-get-into-canada-refugee-claim-made-upon-arrival-106814793.htmlThey swapped it for the rubick’s cube head guy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337683",
"author": "cde",
"timestamp": "2011-02-19T21:30:47",
"content": "@Adam, uh, Shark does no such thing. All Shark is is a frontend gui for tcpdump.And this is like a Fonera running Pineapple, or Upsidedownternet. Funny, probably true, or if not, proof of concept.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337685",
"author": "D1g1talDragon",
"timestamp": "2011-02-19T21:32:01",
"content": "Wait… having a host name related to the project, and displaying it in the prompt when connected to a shell there gives a strong sense of trolling? Have you guys ever actually USED Linux?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337694",
"author": "Quin",
"timestamp": "2011-02-19T21:42:38",
"content": "Is it possible to do this? Sure, but to work wirelessly most setups would need two wireless cards: one to listen and the other to broadcast the fake data. When I tried 802.11 hackery, most wireless chips would not allow you to send packets while they were in monitor mode listening to other devices that were not connected. On an unencrypted network, one wireless port listens for a request for a news site, the device crafts a packet to mimic what the AP should respond with, and broadcasts that packet over the second wireless port. Since this device doesn’t have the latency of a remote server, it gets to respond before the actual news.com server can, and the real reply looks like an echo.But that website, with all it’s stock photos, looks pretty fishy to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337701",
"author": "louie",
"timestamp": "2011-02-19T21:55:23",
"content": "Obviously a fake, if you check around in the newstweek website everything is fake except this article, if you follow the links and checkout the names you’ll discover that it’s two artists behind this site.Yes, it’s possible. No the article (and possible device) is fake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337705",
"author": "drone1",
"timestamp": "2011-02-19T22:03:10",
"content": "Site’s obviously bollocks but their tech looks pretty legit to me. Check out this video:http://www.youtube.com/watch?v=xL5ljrNInpMIt’s all there lads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337719",
"author": "no",
"timestamp": "2011-02-19T22:29:23",
"content": "device is clearly real, so trivial to build it’s not even funny. website is a parody, if that’s not obvious upon reading it then the reader is a sucker. it’s another proof of concept that is getting good press because they have a good pr instinct.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337728",
"author": "cde",
"timestamp": "2011-02-19T22:42:43",
"content": "@Quin, most wireless cards won’t, but embedded controllers will. Having Dual APs is a standard feature on those pocket routers (Look at Fonera or DDWRT), and it does it by interleaving the data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337729",
"author": "IceBrain",
"timestamp": "2011-02-19T22:42:46",
"content": "@NatureTM: have you seen most browsers’ invalid cert pages? It’s like it’s warning you about the imminent end of the world.SSLstrip would be much cleaner; they would simply get an HTTP version of the site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337742",
"author": "Rudolph",
"timestamp": "2011-02-19T23:00:34",
"content": "So the point is to inject fake news stories into real news feeds. The fake news is, presumably, retrieved from the newstweek website. Yet some figure the project is fake because the news from the newstweek site is fake?Interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337749",
"author": "xAnonx",
"timestamp": "2011-02-19T23:33:34",
"content": "If it is real then it probably only works on feeds from one site (Newsweek) or at least a limited number. Programming a device and doing individual injections for a variety of sites would be a great pain the ass. The device probably isn’t specifically made for doing such things, but rather remote network injection. The author probably just wanted an interesting hook on their story, and probably only did this once as a proof of concept, or worse, a joke.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337803",
"author": "Squirrel",
"timestamp": "2011-02-20T02:32:08",
"content": "too bad this website doesn’t know the difference between new and knew…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337805",
"author": "Lewis",
"timestamp": "2011-02-20T02:34:48",
"content": "It looks to be a real device. Probably a sheevaplug that has been repackaged with BusyBox Linux. Then using arp-spoofing like many of the hotels do. The can create their own news stories. Don’t know if this a proof-of-concept device but it has all the makings of a real item.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337811",
"author": "Thebes",
"timestamp": "2011-02-20T02:58:29",
"content": "The antenna exhibits poor engineering. I question whether it would even present an acceptable swr to the transceiver. To perform within typical expectations it would need to be attached to a metal chassis, plate, or at least some counterpoise. If it works then range is less than expected.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337818",
"author": "ENKI-][",
"timestamp": "2011-02-20T03:11:52",
"content": "If such a thing doesn’t exist, that just means we should build them. If it does, we should build more ;-).I did a proof of concept to demonstrate the creation of disinfo articles that somewhat resemble the real thing, automatically, based on existing news feeds:http://namcub.accela-labs.com/stories/googleed.htmlhttp://namcub.accela-labs.com/stories/boinged.htmlThe above is the result of the original source piped through a sequence of sed commands. In other words, it’s so trivial your dead grandmother could write it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337854",
"author": "NatureTM",
"timestamp": "2011-02-20T04:57:59",
"content": "@IceBrainYeah, I’ve seen those. They are pretty intimidating these days. Good point about SSLstrip. The thing is, when a person wants to say check their bank balance over some https site, they see the warning and probably have a little freak out, unplug their router, restart their computer, etc. When none of this stuff works, they usually just say, “f*** it, what could be the harm?” Then they accept the invalid cert, the site loads normally, and they forget about it. A lot of people seem care about security until it becomes a hassle. They disable their AV because it nags them to update. They disable UAC in Windows because it makes them click a button one or two extra times. You can warn people all you want, but if they get a little annoyed, you can usually expect them to do something stupid.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.629564
|
||
https://hackaday.com/2011/02/19/stackable-macro-photography-rig/
|
Stackable Macro Photography Rig
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"macro",
"optical drive",
"PICAXE",
"stepper",
"zerene"
] |
When taking macro photographs you lose a lot of clarity due to a reduced depth of field. One way to get sharp pictures is to take multiple shots at slightly different distances from the subject and then stack them into one image. There’s software to do this for you, but you still need a set pictures to start with. [Dsvilko] built this setup to
easily capture a set of macro images
.
He’s using the internals from an optical drive as a sled to carry the subject. A PICAXE drives the stepper motor that moves the carriage, which takes input from an IR remote control. This turns out to be a fantastic method as the sled can move in 0.2mm increments. After he’s got his set of images he uses
Zerene
to stack them together.
Bonus points to [Dsvilko] who used Linux command line tools to edit together the demonstration video embedded after the break.
[youtube=http://www.youtube.com/watch?v=XeXjpZpaZns&w=470]
[Thanks Twopartepoxy]
| 14
| 12
|
[
{
"comment_id": "337501",
"author": "Bill D. Williams",
"timestamp": "2011-02-19T14:39:15",
"content": "Here’s more info and few more samples.http://www.diyphotography.net/create-an-automated-macro-rails-for-image-stacking",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337509",
"author": "sneakypoo",
"timestamp": "2011-02-19T15:17:51",
"content": "Correction: 0.02mm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337562",
"author": "Nat",
"timestamp": "2011-02-19T17:16:27",
"content": "Amazing! Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337582",
"author": "Cricri",
"timestamp": "2011-02-19T17:57:26",
"content": "Alternatively, you could get a Canon camera and install CHDK on it. No effort required. And if you don’t want to pay for Zerene, use CombineZM instead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337674",
"author": "Pat_loonytoon",
"timestamp": "2011-02-19T21:10:36",
"content": "CHDK for Canon point-and-shoot cameras,MagicLantern for Canon DSLR cameras.Both have focus bracketing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337720",
"author": "Martin",
"timestamp": "2011-02-19T22:31:46",
"content": "Hrm…nice job, but, I (personally) feel that the whole point of macro photography is to keep the SUBJECT in focus, and, that the short depth of field only serves to accentuate the macro-ness.Nice job though… not knocking it :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337764",
"author": "echodelta",
"timestamp": "2011-02-20T00:12:03",
"content": "Stop down and light up target. I used to do this with an old school vidicon camera, thumbprint filling half of frame in focus and background at infinity in focus.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338230",
"author": "dsvilko",
"timestamp": "2011-02-20T21:03:11",
"content": "Just to say hi and thanks for the comments :)Even though a nice, shallow DoF can produce a pleasing effect when doing ‘moderate’ macro photography (up to a 1:1 magnification), beyond that and the DoF starts getting ridiculously low (often much less than 0.1mm). Unless you wish to have just one small part of one eye in focus, you have to stack. I usually take about 50 shots and often even that is not enough to cover all of the subject in sharp focus.If you are interested in the highest picture quality, stopping down is also not the answer because very soon you start loosing contrast due to diffraction.The thing I am most proud of is that I managed to do all this with the smallest (8-pin) PICAxe with 256 bytes of program space :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338263",
"author": "zeropointmodule",
"timestamp": "2011-02-20T22:02:41",
"content": "wonder if this would work using flatbed scanner lenses on a cheap webcam?the small cameras on many newer laptops have a lousy lens to begin with, but replacing it increases the usefulness manyfold.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339591",
"author": "Sp`ange",
"timestamp": "2011-02-22T19:02:14",
"content": "Why not put a universal tripod mount on the sled and then mount the sled on a tripod. Then, you wouldn’t be limited on what you could photograph. The stepper should have enough power to move the camera.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339594",
"author": "dsvilko",
"timestamp": "2011-02-22T19:11:46",
"content": "@Sp`angePossibly – was considering it. On the other hand the time required to take one sequence of photos (up to a few minutes!) really limits the choice of subject to completely static ones. If they are static then I can just as well bring them home and shoot them in controlled conditions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "901071",
"author": "Christie",
"timestamp": "2012-12-10T13:40:53",
"content": "Of course you could enrol on a photography course so you know what you’re talking about. I’m a professional photographer – trust me – this man has no idea what he’s talking about.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "901803",
"author": "dsvilko",
"timestamp": "2012-12-11T09:42:01",
"content": "Please explain (if you are not simply trolling).",
"parent_id": "901071",
"depth": 2,
"replies": [
{
"comment_id": "1019500",
"author": "Don Sutton",
"timestamp": "2013-06-25T14:35:50",
"content": "Wouldn’t worry about that ridiculous comment dsvilko. He just blew any credibility he might have had. “Professional – Trust me”, Ha! so what? Anyone can charge for a service, That doesn’t make him the font of all knowledge.I’ve frequented your posts many times and although I may not follow your route exactly , I will be using something along those lines when I get the time.I’m no pro but I do have 50 years experience. Keep up the good work, it got me, and probably a lot more hobbyists, interested.",
"parent_id": "901803",
"depth": 3,
"replies": []
}
]
}
]
}
] | 1,760,377,273.99036
|
||
https://hackaday.com/2011/02/18/hard-drive-password-recovery/
|
Hard Drive Password Recovery
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"mhdd",
"password",
"pata",
"sata"
] |
Here’s a guide for
recovering protection passwords from ATA hard drives
(
translated
). These passwords are stored in a special area of the hard disk that also contains the firmware for the device. Normally you can’t get at them but [Supersonic] walks us through a method used to grab the data off of a Western Digital Scorpio drive. Booting into a program called MHDD you are able to bypass the BIOS (which won’t allow you to read protected data) and directly drive the SATA or PATA controller on your motherboard. Once you’ve dumped the data it can be viewed with a HEX editor, and if you know where to look you can grab the passwords that are locking the disk.
This reminds us of some of the original Xbox hacks which used a variety of methods to unlock the stock hard disk.
| 23
| 18
|
[
{
"comment_id": "337094",
"author": "Andrew Parting",
"timestamp": "2011-02-19T00:30:00",
"content": "Oh that is painfully poorly designed(the password protection).Great tut though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337151",
"author": "NatureTM",
"timestamp": "2011-02-19T01:49:03",
"content": "Yeah, that reminds me of Xbox too. …reminds me of when I unlocked the disk, and then didn’t write down the password that it needed to be relocked with. I was told I either needed to sniff the PW from the IDE bus directly (in plaintext) or buy a mod chip. I didn’t have a logic analyzer at that point so I had to buy a mod chip.This also reminds me of a discussion I had with flyback, a freenode regular, on IRC recently. He was doing some data recovery for a client on a faulty HDD. Flyback was using a serial debug interface that he said was common amongst HDD’s. It sounded like you just needed to know what test points to solder to and the protocol was straightforward after that. You could do some really low level stuff with the hardware. You also got r/w access to all kinds of eeprom data. I’ll bet the password was in there. He gave me a PDF with an extensive list of serial commands, but I lost it when I had to reinstall my OS a couple weeks ago. He called it PMOS. I’m not sure what that refers to, and googling “PMOS” doesn’t bring up anything relevant. It was really interesting, and worth some digging if anyone’s into HDD tech or is technically inclined and desparate to salvage some data from a bad HDD.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "581457",
"author": "Joe2",
"timestamp": "2012-02-13T03:52:28",
"content": "TMOS, actually. Don’t say I never deliver! Look here:http://forum.hddguru.com/seagate-tmos-command-set-t188.html",
"parent_id": "337151",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "337198",
"author": "Bill",
"timestamp": "2011-02-19T03:03:49",
"content": "“This reminds us of some of the original Xbox hacks which used a variety of methods to unlock the stock hard disk. ”Totally. Man was I big into that back in the day, I still have several modded xboxes lying around collecting dust including this work of art:http://www.billporter.info/xbox-mod/I should come up with something useful to do with them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337204",
"author": "Bill",
"timestamp": "2011-02-19T03:09:27",
"content": "and yes, it is a useless way to protect data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337241",
"author": "xuwkrm",
"timestamp": "2011-02-19T04:35:18",
"content": "@naturetmyou didnt NEED the modchip as you could have dumped the eeprom that stores the unique info about the xbox, like its hdd unlock code.i wonder if this tool will actually unlock already locked xbox hdds whom have been seperated from their married motherboards.if i pull some from the depths of the closet ill give it a shot and report back :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337246",
"author": "Anthony",
"timestamp": "2011-02-19T04:55:19",
"content": "Here is the HDD Serial interface website, it has some of the commands on Seagate HDD’s..http://sites.google.com/site/seagatefix/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337271",
"author": "The Juggernaught",
"timestamp": "2011-02-19T05:57:27",
"content": "So if I’ve been doing this for five years, am I alone. It’s the same menu to wipe the drive using the firmware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337338",
"author": "Gdogg",
"timestamp": "2011-02-19T08:22:27",
"content": "@Bill: Install XBMC!Sure, it can’t play HD video, but it’s still pretty awesome.. you can buy composite cables for, like, $8 on ebay. Makes everything look a lot better, too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337409",
"author": "andres",
"timestamp": "2011-02-19T10:03:17",
"content": "@Gdoggcomposite cables are the crappy ones. i beleive you mean component cables (rgb)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337496",
"author": "David",
"timestamp": "2011-02-19T14:10:22",
"content": "@NatureTM I was in a similar scenario. I killed the HDD hot swapping it and couldn’t add another without first locking it with the same (unknown) key from the original.I found this hack (elsewhere):http://forums.afterdawn.com/thread_view.cfm/357863Was chuffed to bits when it worked!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338254",
"author": "Bill Porter",
"timestamp": "2011-02-20T21:47:02",
"content": "@GdoggO, they all have XBMC on them, and I loved that software. But now I have a dedicated HTPC, so no need for the limited xbox.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338695",
"author": "hddguy",
"timestamp": "2011-02-21T14:13:59",
"content": "This guy should give credit where credit is due!http://yura.projektas.lt/files/wd/royl_mhdd.htmlhttp://forum.hddguru.com/unlocking-ata-password-for-western-digital-t8374-20.html#p69316",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "581461",
"author": "Joe2",
"timestamp": "2012-02-13T04:08:10",
"content": "That site blocks us from seeing some of the WD info, sadly. Luckily, I’m working on a Fujitsu! (Hehe)I came across this in a search for a tool that actually works on resetting the password on/erasing a drive that got it accidentally set. I just love how laptops with one set will just go ahead and make unlocked drives protected without asking – don’t you, too? LOL, probably someone at the store ‘tested’ a laptop with it and then I bought it. It’s more fun getting it working than walking back to the store, though. I’ve learned that the Fujitsu laptop drives have pins suspiciously similar in placement to the ones on the Seagate 7200.11 drives that everyone was griping about a couple years back. Luckily, mine was unaffected by the BSY bug. :/BTW You should have linked to this part of your forum:http://forum.hddguru.com/hard-disk-drives-data-recovery-and-repair-f1.html",
"parent_id": "338695",
"depth": 2,
"replies": []
},
{
"comment_id": "581462",
"author": "Joe2",
"timestamp": "2012-02-13T04:08:51",
"content": "oops didn’t see second link… hehe you did provide it.",
"parent_id": "338695",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "602877",
"author": "jason",
"timestamp": "2012-03-14T08:28:21",
"content": "does this work on a toshiba drive?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1034844",
"author": "Mr TuanAnh",
"timestamp": "2013-08-02T14:59:02",
"content": "My laptop sony vaio VPCX131KX when turn on, the screen text is “Enter Hard Disk User Password”. Although I did not set a password for drive. Help me!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1034845",
"author": "Mr TuanAnh",
"timestamp": "2013-08-02T15:01:58",
"content": "My hard disk is sandisk pssd 64GB. Please help me! Thanks so much",
"parent_id": "1034844",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "1053849",
"author": "rick",
"timestamp": "2013-09-07T20:04:30",
"content": "does anyone knows the master password for Hitachi sata 2.5 hard drive? need hepl… ive tried the 32 spaces but didnt work…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1099971",
"author": "Monique",
"timestamp": "2013-11-13T06:12:47",
"content": "I all the time emailed this webpage post page to all my associates, as if like to read it after that myfriends will too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1167206",
"author": "Amanda",
"timestamp": "2014-01-22T02:06:56",
"content": "So what about on Laptops??!! I have an administrative HDD password and can’t remember it. This doesn’t help me at all. I’m 15 and can’t get a visa until I’m 18 , not mailing cash for it to just come up stolen. And I want to keep my fast HDD do buying a new one is out of the question. Help?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2454035",
"author": "Byron",
"timestamp": "2015-02-26T03:42:22",
"content": "That depends on what you are trying to do. Is the PW on a HDD? Is the PW on a user account?",
"parent_id": "1167206",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "1757860",
"author": "Davis",
"timestamp": "2014-08-27T13:01:39",
"content": "i have a very old Toshiba laptop from 2005 (its era). i need to enter the build-in User HDD passsword. but i entered it a long time ago and I have not used it since then. what can i do to get it back?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.939322
|
||
https://hackaday.com/2011/02/18/hacking-teddy-ruxpin/
|
Hacking Teddy Ruxpin
|
Mike Szczys
|
[
"Toy Hacks"
] |
[
"ez-builder",
"servo",
"teddy ruxpin"
] |
[DJ Sures] got his hands on a broken Teddy Ruxpin doll and
decided to give it a new robotic life
. You may want to ask the children to leave the room before viewing the video after the break. It starts right off with little Teddy having his throat slashed in order to get at the parts in the head. After retrofitting the eyes, mouth, neck, and arms with servos, Teddy gets a Bluetooth upgrade that lets you control his movements wirelessly. [DJ Sures] even has plans to get the little guy up and walking, far exceeding the original capabilities.
| 17
| 17
|
[
{
"comment_id": "337026",
"author": "dmcbeing",
"timestamp": "2011-02-18T23:21:01",
"content": "For some wierd reason i wanted to see the bear spin it head 180 degrees (ala Excoricist).Cool project :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337027",
"author": "Ivan Tikhonov",
"timestamp": "2011-02-18T23:23:48",
"content": "That’s how Dr.Frankenstein started.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337032",
"author": "foo",
"timestamp": "2011-02-18T23:27:19",
"content": "love iti must see video of him interacting with kids and having the teddy say all sorts of evil crazy things in a demonic voice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337062",
"author": "Paul Potter",
"timestamp": "2011-02-18T23:58:14",
"content": "Both cool and cute.The one I remember took a standard looking cassette tape.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337082",
"author": "Mark R",
"timestamp": "2011-02-19T00:12:07",
"content": "I also think it would be better if it had an evil voice. It looks so cute and innocent, that it would be awesome to scare kids with it. Now Ill have to try that with my daughters talking Dora the Explorer doll.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337124",
"author": "Tech B.",
"timestamp": "2011-02-19T01:26:19",
"content": "This reminds me of the bear on the AI movie:http://www.comeawayohumanchild.net/AIseventh/7thAI3.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337127",
"author": "RadBrad",
"timestamp": "2011-02-19T01:33:14",
"content": "Nice hack, like the other bots as well.Cheers from Thunder Bay!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337131",
"author": "jeditalian",
"timestamp": "2011-02-19T01:38:09",
"content": "gotta love those 80’s/90’s electronics/circuit boards. you didn’t need a fancy soldering iron to hack them. they are so spaced out and more easily examinable.that one looked softer and smaller too i think, than the kind i remember, like @Paul Potter mentioned. we used to pop random tapes in there because there’s just something funny about seeing an animatronic bear singing bad things.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337132",
"author": "jeditalian",
"timestamp": "2011-02-19T01:40:35",
"content": "okay maybe the same size bear, but i think he may have taken larger batteries as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337217",
"author": "Jesse Smith",
"timestamp": "2011-02-19T03:38:10",
"content": "There were two teddy ruxpin bears as i recall. That was the first generation with the 8 track casette. The second generation used a regular casette tape. They both took 4 AA batteries. Both were made by Playskool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337311",
"author": "egasimus",
"timestamp": "2011-02-19T07:23:00",
"content": "“Mother, I don’t want you to bury menext to a friend of Teddy Ruxpin”— Bulgarian punk song.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337507",
"author": "Chris",
"timestamp": "2011-02-19T15:06:27",
"content": "someday the world will be over ran by robotic teddy bears that don’t hibernate but only kill",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337548",
"author": "octel",
"timestamp": "2011-02-19T16:32:14",
"content": "what a strange laptop. some kind of macbook pro knockoff?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337778",
"author": "Hawaii00000",
"timestamp": "2011-02-20T00:57:04",
"content": "Cool in a creepy sort of way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337886",
"author": "medwardl",
"timestamp": "2011-02-20T06:11:53",
"content": "Would love to see it act normal until queued by the blue tooth to go all demonic and then have it switched back to normal to really screw with the kids heads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339778",
"author": "XiuiX",
"timestamp": "2011-02-23T01:20:52",
"content": "Man, that brings back some good old memories.:) I am happy to see Ruxpin with modern Equipment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "394021",
"author": "Thomas",
"timestamp": "2011-05-14T01:40:48",
"content": "I had Teddy Ruxpin made by Worlds Of Wonder, Yes Ent, Backpack Toys.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,273.878704
|
||
https://hackaday.com/2011/02/16/black-rock-city-navigator/
|
Black Rock City Navigator
|
Kevin Dady
|
[
"gps hacks"
] |
[
"burning man"
] |
Only a little bit out of season but better late than never! [Scott] brings us his
Black Rock City Navigator
. This unique bike mounted GPS device made for Burning Man 2010 features a servo driven array of LEDs. Two LED strips are used to cover the full 240 degrees of the C shaped city without modifying the servo, and are rotated over the different compass points.
It is powered by a pair of Freescale MC9S08AW32 micro controllers, and a unnamed GPS receiver. One controller deals with the servo and GPS data, the second simply drives the LEDs, and why not if you have plenty?
Housing the device is a four inch black sewer pipe end cap with a ball clamp attached, and is toped off with green acrylic engraved with the map of Black Rock City. Add some stickers (because stickers make everything better) and you have a functional device with a top-notch look for this year’s event.
| 4
| 4
|
[
{
"comment_id": "334726",
"author": "Mike Szczys",
"timestamp": "2011-02-16T15:24:03",
"content": "That’s super awesome. It’s always the initial idea that is the hardest to come up with, good job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334746",
"author": "rasz",
"timestamp": "2011-02-16T16:09:53",
"content": "Looks like a prop from Batman movie.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334837",
"author": "MisterPG",
"timestamp": "2011-02-16T18:24:07",
"content": "Awesome! Hope to see it on the playa in 2012.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "446978",
"author": "Android RPG",
"timestamp": "2011-09-03T06:20:03",
"content": "This is looking good. The future is now!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.029034
|
||
https://hackaday.com/2011/02/16/the-wandering-arduinobot/
|
The Wandering Arduinobot
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"arduino",
"ir",
"range finder",
"servo"
] |
You almost have to love
this Arduino based robot
just because of the wheels and third leg support. Look closely, do you recognize them? Yep, they’re Capsela parts! That’s a blast from the past and we wonder why we don’t see the strange building toys of yore used in more hacks?
But we digress, this little
bugger
guy uses continuous rotation servos for locomotion. Perched atop the body is a third servo which scans an IR range finder back and forth to look out for obstacles in its path. The body itself is a Black and Decker rechargeable battery pack called Pocket Power which includes a USB port for a regulated 5V supply. One thing’s for sure, this little guy is fantastic at avoiding pizza and beer… you’ll just have to see for yourself after the break.
[youtube=http://www.youtube.com/watch?v=zo9m5PXjKks&w=470]
| 23
| 23
|
[
{
"comment_id": "334687",
"author": "Andy7",
"timestamp": "2011-02-16T14:18:28",
"content": "OMG! Capsela was awesome – I wonder where all mine went.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334688",
"author": "Velkro Smaak",
"timestamp": "2011-02-16T14:19:26",
"content": "First!Would like to say, what a tuuune!Bot’s OK.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334692",
"author": "patman2700",
"timestamp": "2011-02-16T14:22:34",
"content": "Awesome ‘bot! But Miller Lite?!? Really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334709",
"author": "holly_smoke",
"timestamp": "2011-02-16T14:50:35",
"content": "Do you know what the word “bugger” actually means?!Hint – Type “Define: bugger” into Google.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334718",
"author": "Jim",
"timestamp": "2011-02-16T15:10:04",
"content": "‘Someone viewed with affection’ and ‘A rough synonym for whippersnapper’ are listed, so probably good enough to let it go! Let’s not get too ‘PC’ unless it is of the computer kind being hacked…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334724",
"author": "FightCube.com",
"timestamp": "2011-02-16T15:22:29",
"content": "+1 for Capsela! I had those as a kid and used them well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334725",
"author": "holly_smoke",
"timestamp": "2011-02-16T15:23:25",
"content": "Jim, I am not sure if those two “slang” uses you have quoted appear in the Oxford English Dictionary definition…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334729",
"author": "NatureTM",
"timestamp": "2011-02-16T15:30:15",
"content": "Capsela! I had a bunch as a kid, and I asked my mom where they were just a couple months ago. She gave them away! At least I can hope some kid somewhere is learning something. I still got my old erector set!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334747",
"author": "Jordan",
"timestamp": "2011-02-16T16:15:33",
"content": "I still have some capsela in a box somewhere. i used some of it to make a crude ball mill among other things.and that black and decker power pack has been a life saver as well.awesome :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334771",
"author": "fotoflojoe",
"timestamp": "2011-02-16T16:50:59",
"content": "Yeah, I avoid Miller Lite too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334798",
"author": "Alex McAlpine",
"timestamp": "2011-02-16T17:35:07",
"content": "Yep, I love the Capsela too!http://www.brainlubeonline.com/PERG/old_Site/Capsela.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334856",
"author": "thetanktheory",
"timestamp": "2011-02-16T18:37:09",
"content": "Holy crap! Capsela for life! i made so many ridiculous contraptions with that kit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334857",
"author": "wishafish",
"timestamp": "2011-02-16T18:38:34",
"content": "Man, I haven’t seen Capsela parts in ages. A family friend scored two boxes for me at a garage sale when I was a kid, what a great $10. Capsela gave me an introduction to those gearing systems — what a great toy. Wish I still had it for my kids to play with too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334890",
"author": "brad",
"timestamp": "2011-02-16T19:24:37",
"content": "oh wow, haven’t seen capsela for a long time! i used to have the voice control module… high class!!any project that uses old capsela parts is automatically top notch!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335003",
"author": "mike",
"timestamp": "2011-02-16T21:28:52",
"content": "OMG I LOVE CAPSELA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335007",
"author": "Blue Footed Booby",
"timestamp": "2011-02-16T21:34:20",
"content": "Anyone who gets bent out of shape over the use of bugger in that fashion is a class A douchetard. Seriously, even the British verb form isn’t really offensive at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335010",
"author": "Erik Johnson",
"timestamp": "2011-02-16T21:41:57",
"content": "I saw that yellow floater and had to come in just to say I LOVE CAPSELAAlso, does anyone know where to find those IR sensors for cheap? I’ve used them before, need more…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335048",
"author": "Rudolph",
"timestamp": "2011-02-16T22:13:39",
"content": "@Erik Johnson (and everyone, for that matter)If you find em, get em while you can. Sharp has discontinued the line.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335173",
"author": "WeAreMany",
"timestamp": "2011-02-16T23:22:50",
"content": "Capsela, You captured my childhood",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335400",
"author": "dmo",
"timestamp": "2011-02-17T04:34:37",
"content": "Sorry, I have never heard of Capsela before. What years where these sold in? Were they expensive?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335405",
"author": "MrTaco",
"timestamp": "2011-02-17T04:43:37",
"content": "Another posting for Capsela. I remember poring over the catalogue thing, looking at all the parts I didn’t have but wish I did…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335491",
"author": "anti-fanboi",
"timestamp": "2011-02-17T06:47:03",
"content": "Correction: “capcella robot”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335600",
"author": "strider_mt2k",
"timestamp": "2011-02-17T10:41:09",
"content": "I also purchased a couple of those Black & Decker power things and I think we can all agree that the outer case is the most useful parts of those utter pieces of crap.sigh",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.091129
|
||
https://hackaday.com/2011/02/16/ski-pole-persistence-of-vision/
|
Ski Pole Persistence Of Vision
|
Mike Szczys
|
[
"LED Hacks"
] |
[
"arduino",
"ATmega168",
"pole",
"POV",
"ski"
] |
[Powder4u] wanted to make a persistence of vision display for his bicycle but with 50 cm of snow on the ground it’s hard to get out and ride right now. Instead he made
this persistence of vision ski-pole accessory
. We asked him to share some details and he obliged. It’s made using an Arduino compatible ATmega168, LEDs with resistors, and installed on some protoboard. The enclosure is a clear pencil case, which isn’t water tight but he’s tried to bolster that with some creative scotch tape placement. There’s no sensor to detect which direction the board is moving in so displaying alpha-numeric messages will have some issues, but as you can see
he managed to display image data
without issue.
We’re used to night skiing with floodlights along the slopes. This would be a fun little thing to have along with you on those dark lift rides.
| 6
| 6
|
[
{
"comment_id": "334644",
"author": "FoxxCommand",
"timestamp": "2011-02-16T13:15:54",
"content": "Utter win.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334655",
"author": "Phil",
"timestamp": "2011-02-16T13:35:30",
"content": "Love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334697",
"author": "Sigg3",
"timestamp": "2011-02-16T14:34:22",
"content": "This makes it easier for the North Norwegian Nazi Zombies to find you….The Hunt. Is ON!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334777",
"author": "gruni",
"timestamp": "2011-02-16T17:00:28",
"content": "i kind of like those bar shaped blue leds :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334937",
"author": "Stevie",
"timestamp": "2011-02-16T20:06:55",
"content": "video or fake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336120",
"author": "MalignedMonkey",
"timestamp": "2011-02-17T22:14:01",
"content": "@Stevie: Hurr Durr, look at me, I can’t think of anything to say so I call fake.Seriously boy, such an easy ting to make but such a nice idea. How/why could it be fake? Oh I know, because you can’t do anything of your own so you have a go at other’s work.Good boy, carry on.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.185119
|
||
https://hackaday.com/2011/02/15/a-z-of-electronics-capacitors/
|
A-Z Of Electronics – Capacitors
|
Mike Nathan
|
[
"News"
] |
[
"beginner",
"capacitor",
"Jeri"
] |
[Jeri Ellsworth] recently released another video in her “A-Z of Electronics” series – this time
Capacitors are the subject
. As a penance for my
boneheaded AC Capacitor suggestion yesterday
(I swear it was lack of sleep talking), [Caleb] suggested that I be the one to write this article. Since I’m not an electrical engineer (I majored in Comp Sci), I enjoy watching these videos, and I share them with individuals who are new to electronics. [Jeri] always presents the subject matter in a clear and concise manner, so the subjects do not seem daunting or intimidating.
She briefly discusses the early development of capacitors, including Leyden Jars, then focuses on modern capacitors and their usage. She covers wiring capacitors in circuits, demonstrating the difference between series and parallel configurations, as well as how electrode distance affects capacitance.
If you have a spare minute, be sure to check out her current video as well as those
she has previously released
.
| 15
| 15
|
[
{
"comment_id": "334247",
"author": "jukus",
"timestamp": "2011-02-16T00:15:39",
"content": "this girl is on a mission <3, I hope technology teachers are using these videos in schools..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334269",
"author": "strider_mt2k",
"timestamp": "2011-02-16T00:48:00",
"content": "That is one talented person.Always entertaining, always informative.Had to laugh over the poor birds. :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334374",
"author": "iadvize",
"timestamp": "2011-02-16T04:19:32",
"content": "After reading your post i went and watched her other videos and they are pretty good, thank you for bringing this to my attention",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334394",
"author": "jeditalian",
"timestamp": "2011-02-16T05:10:45",
"content": "i wish we had Jeri’s videos when i was in school. Bill Nye isn’t really that informative.Her videos could make good replacement material for the dumbshit they make kids watch in college nowadays too.. but i think if i would have seen all this growing up, before i ate all those lead pellets and paint chips, the world would have seen some technological advances, we might all be engulfed in a free sea of wiFi, where people can use their skype phones, messengers, etc. freely, until THE MAN steps in, that is..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334451",
"author": "xoin",
"timestamp": "2011-02-16T08:22:17",
"content": "As non-electronic person just following it for the pretty pictures and Youtube videos, I must say that those videos are pretty helpful (even started to try making my own fan-controller).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334508",
"author": "strider_mt2k",
"timestamp": "2011-02-16T10:09:00",
"content": "Fan controller?I’m still trying to tape a picture of Voltaire to this Popsicle stick!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334532",
"author": "mi6x3m",
"timestamp": "2011-02-16T10:42:10",
"content": "Hahaha, nicely done and quite entertaining. It’s talent indeed. I hope they make some more videos so I can enjoy life better!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334628",
"author": "Dino",
"timestamp": "2011-02-16T12:49:12",
"content": "All of Jeri’s videos are excellent. She makes learning electronics, and other things, fun and interesting. Always inspiring. Cheers Jeri!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334874",
"author": "Jeff V",
"timestamp": "2011-02-16T18:50:46",
"content": "Your lack of sleep is forgiven.On another note, I’ve subscribed to these vids. I’m new to the electronics world, and these are a great supplement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334966",
"author": "DarkFader",
"timestamp": "2011-02-16T20:49:06",
"content": "We already knew how to use them. Now we know what they do :)Next up… the Diode? Then Eddy currents or E.M. ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335261",
"author": "jeditalian",
"timestamp": "2011-02-17T01:01:52",
"content": "she already taught us how to make the point-contact transistor.. i think diodes were explained there, but if there were a JeriVid for every individual component, i would watch them and hopefully achieve 1% of her genius.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335274",
"author": "Ben S.",
"timestamp": "2011-02-17T01:29:08",
"content": "Cool videos. I thought I recognized her from somewhere – Ben Heck is competing with her on making pinball machines. Apparently she’s going to be on the next episode of his web show.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335614",
"author": "strider_mt2k",
"timestamp": "2011-02-17T11:04:28",
"content": "@Ben S.:“Clash of the Titans”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337890",
"author": "medwardl",
"timestamp": "2011-02-20T06:22:01",
"content": "Speaking of capacitors I’ve been wondering if it is worth it to harvest the capacitor out of old TV’s or if they are just too big to be of use for anything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "405422",
"author": "ewruirew",
"timestamp": "2011-06-13T22:13:07",
"content": "I’m sorry, but I’m not impressed with this video.Though the historical part of the video was cutsey and everything, the actual practical electronics parts are rushed through WAY too fast.It’s like she’s reading out of a textbook and wants to get through the chapter on capacitors as soon as she possibly can.Though informative, you could have probably gotten the same information from a Wikipedia article.This is not a very good method of teaching.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.144434
|
||
https://hackaday.com/2011/02/15/dotklok/
|
DOTKLOK
|
Kevin Dady
|
[
"Arduino Hacks",
"clock hacks"
] |
[
"dotklok"
] |
[Andrew] is showing off his latest creation, an
LED matrix clock
, which he is calling “DOTKLOK”. The clock is powered by an atmega328 micro controller with a real time clock module keeping the time. The display is made out of a grid of 8×8 LED matrices giving it a resolution of 24×16, and is all housed in an attractive acrylic housing.
The clock animations are inspired by classic video games such as Pong, Tetris, Pacman, and Space Invaders. Since the software is open, it is easy to jump into the Arduino source and add or modify animations to suit your taste, or even use the clock as a custom display for non clock related applications.
Available as a kit or fully assembled if youre needing a gift for that special nerdy someone. If you would like to go it alone, source, schematics, pcb, and enclosure files are available along with a bill of materials.
Join us after the break to see a short video of this fun clock in action
[vimeo
http://vimeo.com/19947676
w=450]
| 27
| 26
|
[
{
"comment_id": "334113",
"author": "echodelta",
"timestamp": "2011-02-15T21:56:31",
"content": "Animations, aaddadhd inducing nonsense. A clock that could display minutes after the current hour and minutes till next hour at the same time would be cool. Seconds too, possibly with animated dot rotating around edge. Gibberish on the digits run together. Was the time set with a lot of ones to hide the unreadability of this failpoint. As usual medieval Roman time ambiguous notation sans latin descriptor. The other models on the site come closer. Minutes and seconds within the hour is more useful than what is shown.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334114",
"author": "bogdan",
"timestamp": "2011-02-15T21:57:04",
"content": "I really like it!I was just thinking about changing the clock from my sunrise simulator for one that could display more info. Oleds were my last choice, but this can do all i need and it looks just great!Congratulations!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334115",
"author": "bogdan",
"timestamp": "2011-02-15T21:58:25",
"content": "@echodelta is right. I’m not in for the animation either.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334123",
"author": "AO",
"timestamp": "2011-02-15T22:09:13",
"content": "Thanks for featuring this HaD!@echodelta The pic featured for the article is one of twelve possible screens for the time — that particular one exists mostly so users can set the date. There are others w/ larger, easier-to-read fonts.Thanks for checkin’ it and out posting your thoughts,ao.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334132",
"author": "Gdogg",
"timestamp": "2011-02-15T22:21:44",
"content": "I probably wouldn’t bother with the annoying animations, but I really like the enclosure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334168",
"author": "Nomad",
"timestamp": "2011-02-15T23:03:04",
"content": "Although the animations in the embedded video here all look a bit overkill, i actually did like the pong-animation that you can see on his website, where the ball drops in order to increase the minute/hour value.May be an idea what to use my DS1307 for.Great job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334317",
"author": "Drew",
"timestamp": "2011-02-16T01:54:20",
"content": "…$150?Really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334382",
"author": "David S",
"timestamp": "2011-02-16T04:42:09",
"content": "So cool! but crazy expensive for what it is…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334448",
"author": "elektrophreak",
"timestamp": "2011-02-16T08:09:28",
"content": "yep, expensive but very cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334491",
"author": "foober",
"timestamp": "2011-02-16T09:07:50",
"content": "OMG. $150. Is this a MoD or DoD clock?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334609",
"author": "Stevie",
"timestamp": "2011-02-16T12:37:54",
"content": "I too am amazed, 150 USD!? Easily worth 300+. Should stick it on Amazon and get what it’s really worth.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334664",
"author": "madder",
"timestamp": "2011-02-16T13:48:34",
"content": "150 or more bucks. u mad?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334739",
"author": "peter",
"timestamp": "2011-02-16T15:52:27",
"content": "$150 for the parts, time and enclosure – that’s pretty reasonable. I know you’re thinking, “I could build that for X!” But the point is, you didn’t. You didn’t write the code, design the board, and solder everything together. Sure, now that there’s code and a schematic you could probably hack something together, but this dude already did.$30 – Arduino$30-50 for board and acrylic$10 (at least) for the displays$5 for the RTC$45 – 3 hours of assembly at $15.00 an hourWe’re only talking about a small margin of profit – and that’s if these things were PRODUCTION.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334748",
"author": "Andy",
"timestamp": "2011-02-16T16:17:12",
"content": "The kit is 150, assembled it’s 200. While there is a lot to be said for the time spent to design it, I think $150 for a kit is a bit much. Assembly is definitely worth $50 in any case, because anyone who would buy it assembled probably doesn’t have the tools or skills to put it together.What would be awesome is if he sold the PCB kit, minus the actual IC’s, display, and other parts, because I have all those things, and I imagine plenty of others do too. I would gladly pay $15 or $20 for the board and parts to populate it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334803",
"author": "Cricri",
"timestamp": "2011-02-16T17:38:13",
"content": "@peterYou are way over estimating the cost of everything. To start with, it doesn’t use a whole Arduino, but just an Atmega328, which costs a fraction of the $30 you state.Still a nice build, thumbs up for sharing the source, but at $150-200 it’s a no brainer: I’ll pass.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334805",
"author": "Andrew O'Malley",
"timestamp": "2011-02-16T17:41:20",
"content": "Hey everyone, I wish I could offer this version of DOTKLOK for less, but Peter is on the right track: pricing reflects much more than the raw component costs, it has to factor in time to design ccts and code, assemble and pack kits, manage suppliers, write documentation, support, etc. etc. This falls well w/in the margins in the retail kit biz.That said, interesting to hear Andy mention he’d be interested in just a PCB. This is def. something I’d consider if the demand is there. Feel free to comment if this is something anyone’s interested in.Thanks for your thoughts everyone,ao.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334853",
"author": "MoJo",
"timestamp": "2011-02-16T18:34:59",
"content": "As someone who has done open source kits before I too find $150 a bit expensive. I do Retro Adapter kits for £15 which includes:1x ATmega1681x PCB1x case1x USB cable3x resistors, 4x capacitors, 2x diodes1x xtal2x connectorsPeter, your component costs are nuts. If you were going to do a PCB you wouldn’t need an Arduino, just build the damn thing in. Your PCB and plastics costs are about ridiculous too. Try somewhere like Seeed Studio for PCBs and Ponoko for the plastic. I just bought 5x DS1307 RTCs off eBay for £2.50.100% profit margin is fairly normal. Having build an LED matrix clock myself, as well as various other clocks, if I were setting out to produce a kit like this I would aim for £29.95 and include a radio time module.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334854",
"author": "Stevie",
"timestamp": "2011-02-16T18:35:51",
"content": "Mr O’Malley, thanks for taking a break from your beer to come here and provide feedback. I’d be interested in the code without any of the associated hardware. I believe this should be posted to thepiratebay for free since all the other major software providers (even Microsoft) are posting their software there for free download.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335041",
"author": "Stu",
"timestamp": "2011-02-16T21:56:51",
"content": "Sorry to be a device support snob, but for some reason the embedded video on this article doesnt show on the iPad.I wouldnt normally mind, but a lot of other HaD videos DO show up on the iPad safari browser okay.So just an innocent suggestion to ensure all the article authors go about putting embedded vids in the same way for consistency.Thanks muchly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "340803",
"author": "John S",
"timestamp": "2011-02-24T16:02:18",
"content": "I’d be down for a PCB or else a guide for rolling your own with an Arduino you already have. Although there’s no way to really get any $ for design on the latter, which makes me understand why it’s probably not going to happen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "341923",
"author": "Roger",
"timestamp": "2011-02-25T20:04:04",
"content": "Andrew, thanks for releasing the code and materials, I got a few of the LED displays from sureelectronics and after a bit of research for pinouts, got it wired up to my arduino.I noticed that the disaply specified in the materials is EOL, so I ordered the newer de-dp1112. it uses a ht1632c controller and requires 2 mods to the code.1. set the color to RED, the green workaround is no longer needed2. inthe void ht1632_setup() add and modify as:ht1632_sendcmd(chip[c], HT1632_CMD_COMS01); // 16*32, NMOS drivers//ht1632_sendcmd(chip[c], HT1632_CMD_MSTMD); \t/* Master Mode */ht1632_sendcmd(chip[c], HT1632_CMD_RCCLK); \t/*ht1632C master mode &18 */hope this helps anyone else out there struggling with the new LED panel like I was.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "345604",
"author": "AO",
"timestamp": "2011-03-01T20:31:25",
"content": "@ John S: I may order extra pcb’s for individual sale next time I reorder :)@ Rodger: thanks for the info about the newer panels, I have migrated to them and updated the code accordingly, there will be a 1.2 version of this code (and updated documentation) posted to the Dotklok site soon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "345606",
"author": "AO",
"timestamp": "2011-03-01T20:32:32",
"content": "@ Roger: sorry for typo . . . also, if you make your own, I’d love to see a pic! Cheers!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "355220",
"author": "Harald",
"timestamp": "2011-03-11T13:37:11",
"content": "@Roger:Thnx for the hint. I ordered my (big 5mm) LED Matrix last Week. I’m planning of getting a “big dotklok Wall Clock”. I’ll report when i get my LED Matrix.@Andrew1st: I LOVE the dotklok Game mode 8-bit gaming rulez :-)I’m looking forward of code version 1.2 and send you any addinions I’m currently planning. Unfortunately getting all the parts together in Germany isn’t that easy as I had to order stuff from 2 stores and ebay. Also I’m struggeling with Eagle CAD as i never used it before (Im planning some additions/ changes to the PCB. But i would definitely be interested in getting an original PCB from you.Last:Did you ever check how much power dotklok draws? Would it be possibel to make it work with batteries?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1635886",
"author": "David S",
"timestamp": "2014-07-13T21:52:20",
"content": "Hey Harald – did you get your big dotklok wall clock running? I’ve tried attaching a 5mm board, but it seems like the matrix is somehow flipped or shifted incorrectly.",
"parent_id": "355220",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "355358",
"author": "AO",
"timestamp": "2011-03-11T17:25:55",
"content": "@Harald — lookin’ forward to seein’ a big Dotklok!1.2 of the code should be posted at my site in the next week.As for a PCB, I’ll make some available shortly and will report back here when I have them; right now they’re all spoken for in complete kits but I’ll get a new batch to sell individually soon.I believe Dotklok draws a max of 300mA (when all the LEDs are on), but I haven’t looked much into battery power — could be a cool mod!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "482909",
"author": "AO",
"timestamp": "2011-10-18T00:28:13",
"content": "It took a while, but I finally have bare DOTKLOK PCBs available:http://www.etsy.com/listing/83718552/dotklok-bare-pcbThey are updated from the first version to accommodate a voltage regulator so they work with a variety of power supplies.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.308253
|
||
https://hackaday.com/2011/02/15/screamer-doll-prank-toy/
|
Screamer Doll Prank Toy
|
Mike Nathan
|
[
"Misc Hacks"
] |
[
"555 timer",
"prank"
] |
While it is only the middle of February, it might be a good time to start thinking about your plans for April Fool’s day. [Dino’s]
Screamer Doll
is his submission to the upcoming
555 Contest
. This fun little circuit can be used to easily annoy your cube or house mates and is perfect for all of the April Fool’s day pranksters out there. He fit all the components into a small plastic toy, replacing the eyes and mouth of the doll with three photo cells, and swapping the nose out for a bright LED. When light hits the photo cells, a loud high-pitched squeal is emitted, and the LED blinks furiously until the light source is removed. Shielding the device from light will cause both the sound and LED to slow down, but the brightness of the LED ensures that the toy still makes noise when covered.
It would be great to see a version of this project that is completely silent in the dark, allowing it to be hidden at night, greeting its victims come morning.
If you want to see video of the device in action, read on – just be sure to keep your speaker volume at a reasonable level!
[youtube=http://www.youtube.com/watch?v=_2o8shevoJw&w=470]
| 10
| 10
|
[
{
"comment_id": "334076",
"author": "sdqpub",
"timestamp": "2011-02-15T20:20:03",
"content": "Hes screaming backwards. He calms down when light is blocked. Should be the other way around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334085",
"author": "Jerome Demers",
"timestamp": "2011-02-15T20:42:00",
"content": "Great intro!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334089",
"author": "twistedsymphony",
"timestamp": "2011-02-15T20:49:26",
"content": "The prank is to make it small only active when the lights are OFF (stop making noise when the lights are ON) and have it shriek for a split second at random intervals between 45 seconds and 3 minutes…this makes it super annoying and impossible to find",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334093",
"author": "Bitmage",
"timestamp": "2011-02-15T20:55:11",
"content": "I wanna make one that yells “Bright light! Bright light!” lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334095",
"author": "Gert",
"timestamp": "2011-02-15T20:59:31",
"content": "Adding this to my to-build-list.How about this but with a PIR.Also.Those are the hands of a hard working man.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334098",
"author": "Drake",
"timestamp": "2011-02-15T21:10:18",
"content": "Idea . . . make a kids doll that has a squeeze me spot. When you squeeze it it starts playing a recording of a person screaming as if they were being crushed to death!P.s. its always good to scar your children for life. . . it gives ’em character!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334235",
"author": "derwin",
"timestamp": "2011-02-15T23:41:00",
"content": "the doll he’s using is a Munny. they’re actually made of vinyl or resin and come totally blank with the intention of painting or modding it. you should look up what some people have done on the internet, they’re wild.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334444",
"author": "Haku",
"timestamp": "2011-02-16T07:59:25",
"content": "That would drive you nuts if you had to suffer it for any length of time.V2 should only activate when you pick it up and not deactivate by putting it down again, to be even more of an evil bastard you should leave such a configured unit at a friend’s house without telling them so they discover it when you’ve gone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334446",
"author": "elektrophreak",
"timestamp": "2011-02-16T08:08:27",
"content": "put it in refrigerator if you want to force yourself onto a diet :)it looks like an alien though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334626",
"author": "Dino",
"timestamp": "2011-02-16T12:45:56",
"content": "I love all these alternative ideas. :) Glad you enjoy its annoying nature. :)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.355954
|
||
https://hackaday.com/2011/02/15/learn-to-debug-msp430-chips-using-iar/
|
Learn To Debug Msp430 Chips Using IAR
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"debugging",
"iar",
"launchpad",
"msp430"
] |
If you haven’t done any debugging with microcontroller programs [Kphlight] posted
a follow-along guide for debugging MSP430
chips. You can see above that he’s using the TI Launchpad and has chosen the free (but code limited) IAR Embedded Workbench that is one of the IDE’s that TI provides for the kit. The example builds a Pomodoro timer with just five LEDs and one resistor. You’ll flash the code to the chip, step through each line of the firmware, and learn how to manipulate register data during code execution.
It’s a great primer for the uninitiated, and we’d love to see one using open-source tools like DDD and GDB. If you do write one, don’t forget to
send us a tip about it
. If you want to give open source a try with this hardware
check out our own tutorial
.
| 7
| 7
|
[
{
"comment_id": "334005",
"author": "corp769",
"timestamp": "2011-02-15T19:14:01",
"content": "Loving the picture with the paper clip!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334043",
"author": "alan",
"timestamp": "2011-02-15T19:35:21",
"content": "yea, i’m glad i’m not the only one who uses paperclips when prototyping :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334078",
"author": "NatureTM",
"timestamp": "2011-02-15T20:28:51",
"content": "I prefer CCS over IAR. Kphlight, have you used both? If so, I’m wondering why you prefer IAR? I’m not saying CCS is better. I’m just wondering if I should give IAR another look.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334083",
"author": "svofski",
"timestamp": "2011-02-15T20:41:34",
"content": "more and more IAR seems to be AIR intentionally misspelled",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334084",
"author": "The Cheap Vegetable Gardener",
"timestamp": "2011-02-15T20:41:36",
"content": "Reminds me, I probably should take my TI launchpad out of its box and use it for something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334090",
"author": "Chris",
"timestamp": "2011-02-15T20:49:29",
"content": "Oh good timing, a couple weeks ago I ordered two Launchpads for my first ever foray into microcontroller programming. Debugging resources are a plus!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "903070",
"author": "bhavani",
"timestamp": "2012-12-13T11:27:29",
"content": "This is nice yar",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.398844
|
||
https://hackaday.com/2011/02/16/38-khz-ir-communications-tutorial/
|
38 KHz IR Communications Tutorial
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"18F452",
"infrared",
"ir",
"pic"
] |
Learning about how infrared remote controls work is a great way to expand your electronics knowledge. That’s because this technology is invisible to our eye, and happening faster than we can comprehend without help from test equipment.
This tutorial over at Pyroelectro
talks about the theory behind how the data is transferred and shows you how to build a couple of circuits to experiment with and communicate through infrared light transmissions.
Instead of going with an IR receiver module you’ll build your own using a photo-transistor and an operational amplifier. The Opamp is used to amplify and invert the signal picked up from the IR transmission of a common home entertainment remote control. From there the digital signal is read by a PIC 18F452 microcontroller for processing. But if you want to use a different microcontroller there’s still more than enough usable information to get you across the finish line.
| 14
| 13
|
[
{
"comment_id": "335169",
"author": "Stryker",
"timestamp": "2011-02-16T23:20:51",
"content": "THis is wonderful, I’ve been trying to figure out how this stuff works… (I mean I know the basics and all but I don’t have an oscilloscope [and I’m too cheap to get one] so I’ve been somewhat stumped.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335483",
"author": "andres",
"timestamp": "2011-02-17T06:30:04",
"content": "@strykerFIND AN OSCILLOSCOPE! i waited years to get mine and if there is one tool i would kill to keep it would be my scope. comes in handy every day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335574",
"author": "izzy84075",
"timestamp": "2011-02-17T09:48:25",
"content": "That’s certainly one way to decode remote control signals. I’d have poked around with it until I figured out the actual protocol being used, but for this purpose it works.I’ve been working with two-way communications, though, so I actually have to worry about the protocol involved. This is a good starter project, though, other than the PIC, I think. Last I checked, PIC programmers were either expensive or annoyingly difficult to use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335702",
"author": "Sprite_tm",
"timestamp": "2011-02-17T13:25:30",
"content": "Hmm, the setup is kinda fail. Integrated devices (like the venerable TSOPxxxx-series) use a bandpass-filter to get only the light intensity at 38KHz. This schematic will have massive problems when either a light source shines directly into it or something like a TL-tube is above it: because the 100Hz-signal it emits will mix with the 38KHz signal, the PIC won’t be able to discern between the two.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335724",
"author": "fartface",
"timestamp": "2011-02-17T13:52:44",
"content": "“I don’t have an oscilloscope [and I’m too cheap to get one]”Living in a cardboard box must suck. Last Oscilloscope I bought cost me $35.00 WITH a new probe. How do you get internet access living on the streets like you do?Oscopes are CHEAP, buy used, you dont need a 2ghz 8 trace color scope. a 5mhz old single trace is more than enough for 90% of what tinkerers do.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "335729",
"author": "Nick",
"timestamp": "2011-02-17T14:08:12",
"content": "I agree. I got a 20mhz dual trace from a school for free. They were getting rid of their old equipment for newer stuff. Later I buckled and got myself a rigol dso1052.I love my o’scopes.",
"parent_id": "335724",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "335725",
"author": "fartface",
"timestamp": "2011-02-17T13:55:02",
"content": "Easier way to mess with IR remotes. get frisking IR remote receivers and it eliminates 90% of the parts, IR in, digital signal out. in a $0.29 part.I like the older 10base2 cards that had the 15 pin cable on them, you could hook them up to a IR led transmitter setup and a IR receiver setup and create a optical ethernet connection quite easily.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335730",
"author": "alan",
"timestamp": "2011-02-17T14:09:44",
"content": "@fartfaceplease tell me where you can get an scope for $35.00. single trace 1Mhz scopes cost around $70.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335760",
"author": "mess_maker",
"timestamp": "2011-02-17T15:44:33",
"content": "I picked up a nice 60mhz o’scope from Craigslist for $40 from someone who ( I don’t think ) knew what they had. It is in very good condition except it didn’t come with probes. It isn’t a digital scope, though, it is perfectly capable of handling anything that I will be throwing at it for the foreseeable future. When I need to step up to a better scope I can always do that in the future.For anyone out there that cares, about a week later I picked up a nice frequency generator for $50. If you take your time you can find nice things, in your area, for affordable prices using the internet super highway :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335956",
"author": "Macpod",
"timestamp": "2011-02-17T19:20:36",
"content": "@alanCraigslist, ebay, and ham[ radio] fests.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335962",
"author": "Macpod",
"timestamp": "2011-02-17T19:24:48",
"content": "Forgot to mention surplus auctions in your area too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336221",
"author": "scatterbrained",
"timestamp": "2011-02-18T00:13:45",
"content": "I agree TFA was lame. He didn’t even mention the fact that most digital cameras will pick up IR and display it as visible so you can see what’s going on with the transmitter.I especially thought the part where he said there were no standards was dumb. The problem isn’t that there are no standards, the problem is that there are too many and everybody messes with them to avoid licensing fees. That’s why a universal remote has to have a manual with 6 pages of codes for every TV ever made.Philips RC5, Sony’s and a few other codes are pretty well documented. Linux LIRC project has some good info as well.http://www.sbprojects.com/knowledge/ir/ir.htmis a good source as well.Also not all IR is 38 kHz, IIRC there’s also 36 kHz, 40 and 56 kHz in common use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338886",
"author": "Doktor Jeep",
"timestamp": "2011-02-21T19:33:42",
"content": "Stuff like this makes the internet useful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2015989",
"author": "Tinkerer-r2d2",
"timestamp": "2014-10-19T17:48:13",
"content": "Old hint but still useful. Yes, you can get all the bells and whistles with an IR receiver, but an IR transistor has the advantage you can do something else with it than just decoding remote signals and it’s 50% cheaper anyways. If you buy in 100 quantities like I do, I won’t like to pay 10 bucks for a lot of IR receivers when I can do the same with a lot of transistors for just 4 bucks. An mcu is capable of doing the decoding and also doing the amplifying with an adc pin. Saves the opam.Regarding scopes: I had a scope and hardly ever used it. Bought it 35 years ago, but sold it 10 years ago. You can do almost all the tinkerer stuff without a scope. Just THINKING makes the difference. Having a scope is a nice to have tool, but it’s not really needed for a thinking tinkerer. Where scopes make more sense imho is if you have to repair something without having a schematic, that kind of case.Have a wonderful day, together!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.523658
|
||
https://hackaday.com/2011/02/16/voice-controlled-rolling-robot/
|
Voice-controlled Rolling Robot
|
Mike Nathan
|
[
"Microcontrollers",
"Robots Hacks"
] |
[
"atmega",
"robot",
"voice control"
] |
[societyofrobots] recently posted an Instructable on how to build a
voice controlled robot
in just a few hours time. This robot isn’t particularly cheap, weighing in at about $230, but it is a fun project if you have the means. The bot is driven around by a pair of servos, taking their directions from an Axon II MCU. A VRbot voice recognition module is used to listen for commands, enabling the user to record up to 32 custom triggers for directing the robot.
All of the source code for the robot is included, as well as instructions on how to get started programing the microcontroller. The code provides some basic functionality, but there’s likely plenty more that can be done with the powerful on-board ATmega460. While this robot would make for a great beginner/intermediate project as-is, it should be noted that [societyofrobots] manufactures and sells the Axon II, so this Instructable is half guide/half self-promotion. Have any of you had experience with the Axon II? Let us know what you think.
Keep reading to see a video of the build process as well as the robot doing its thing.
Thanks, [Bill Porter].
[youtube=http://www.youtube.com/watch?v=aUkLd2MncHg&w=470]
| 13
| 10
|
[
{
"comment_id": "335025",
"author": "zool",
"timestamp": "2011-02-16T21:46:39",
"content": "thai fighterheh jk jk jk",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335037",
"author": "Ib",
"timestamp": "2011-02-16T21:54:08",
"content": "what happens is you say HADOUKEN!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335204",
"author": "FightCube.com",
"timestamp": "2011-02-16T23:39:46",
"content": "Reminds me of my Verbot! One of my favorite Christmas presents from childhood. Now I own 3 of them just to make sure I will always have a working one.http://crash.ihug.co.nz/~pinwhiz/verbot.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335245",
"author": "FTWinston",
"timestamp": "2011-02-17T00:40:28",
"content": "I voice-controlled an RC car once. Cut a hole in the roof, sat my N95 in it broadcasting video over wifi, and hooked the controller up to the PC through a USB interface. It was controllable via keyboard (watching video feed from the phone) as well as by voice, and the whole thing was coded in C#. The voice recognition worked fine for pre-defined commands, but in this role, voice control was unworkable. It crashed waaay too much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335267",
"author": "societyofrobots",
"timestamp": "2011-02-17T01:14:50",
"content": "Another video, with a much more fancy robot . . .http://www.youtube.com/watch?v=nEOwTzV8qak",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335275",
"author": "Bill",
"timestamp": "2011-02-17T01:29:26",
"content": "My Autonomous Ground Vehicle is powered by an Axon.[youtube=http://www.youtube.com/watch?v=cNZccRC8Zek&w=560&h=349](Did I embed that right?)http://www.billporter.info/category/projects/autonomous-rover/Though it’s best best for Servo intensive projects like hexapods.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335279",
"author": "Bill",
"timestamp": "2011-02-17T01:31:10",
"content": "BTW, the name on the video is my girlfriend’s, she helped write the lab-view interface for a class.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335518",
"author": "pRoFlT",
"timestamp": "2011-02-17T07:51:19",
"content": "@bill, i was just going to say, isn’t that labview! ;)I almost want to start posting labview duplicates of all HAD posts that i can. To show how easy it is to create things with labview.anyways, neat voice control.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335791",
"author": "swighton",
"timestamp": "2011-02-17T16:46:05",
"content": "@pRoFlTYeah except labview starts at $1249 and the cheaptest DAQ is that USB 6008 which is like $170",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "556085",
"author": "uzma",
"timestamp": "2012-01-11T14:09:51",
"content": "i would like to know whether i can use any other micro-controller for this project as it is not available in india.also i would like enquire that i am making a project i.e robot with object and distance detction what all sensors i can use and can we use those sensors with axon2",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "561847",
"author": "John",
"timestamp": "2012-01-18T11:05:39",
"content": "The Axon ships to India, but you can also use any other UART enabled microcontroller. Specific Axon II information can be found on the product website:http://www.societyofrobots.com/axon2and on the forum.",
"parent_id": "556085",
"depth": 2,
"replies": [
{
"comment_id": "562634",
"author": "uzma",
"timestamp": "2012-01-19T14:42:11",
"content": "thank you for the reply.how many days will it take to deliver the axon in india?can we use vrbot with 8051.",
"parent_id": "561847",
"depth": 3,
"replies": [
{
"comment_id": "562753",
"author": "John",
"timestamp": "2012-01-19T17:00:03",
"content": "That depends a lot on the post office, the Indian post office, and where you live in India. It could be up to 3 weeks, worst case. The 8051 (a VERY old microcontroller) has a hardware UART, so it will work after writing the necessary software.",
"parent_id": "562634",
"depth": 4,
"replies": []
}
]
}
]
}
]
}
] | 1,760,377,274.794121
|
||
https://hackaday.com/2011/02/16/junkyard-fish-tank/
|
Junkyard Fish Tank
|
Mike Szczys
|
[
"home hacks"
] |
[
"aquarium",
"filter",
"plastic bottle",
"polystyrene"
] |
So your house looks like a dumping ground for useless junk? Yeah, we know it’s the hacker’s curse… you just can’t stop salvaging stuff. But follow [Pontazy69’s] lead by building something useful out of that junk. He took an old polystyrene box and
made it into this fishtank
. You can see that the sides and back of the box has gone unaltered, but the front wall is missing. [Pontazy69] marked and cut straight lines while leaving a lip around the edge. Silicone was used to glue some acrylic (or perhaps glass?) to the inside of this lip. Once dried he added another bead around the outside to ensure it doesn’t leak. Few fish would be happy here without some type of filter so he built one of those out of an old plastic bottle and some other pieces. See videos that show you how to build both the tank and the filter after the break.
We love aquarium hacks almost as much as clock hacks. So check out the
water exchange system
, and a couple of
different
lighting
systems
. Then document your own aquarium projects and
let us know about them
.
Fish tank made from polystyrene
[youtube=http://www.youtube.com/watch?v=ac3SVHpuPhw&w=470]
Plastic bottle fish tank filter
[youtube=http://www.youtube.com/watch?v=9h02dIBLVQ8&w=470]
[Thanks Greg]
| 9
| 9
|
[
{
"comment_id": "335006",
"author": "jordan",
"timestamp": "2011-02-16T21:32:05",
"content": "yes hacking and re-purposing is great, but i will stick to store-bought aquariums…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335102",
"author": "joe hosman",
"timestamp": "2011-02-16T22:33:29",
"content": "I did something similar except i haven’t had the time to build a documentation page yet.http://www.ticketattendant.com/fish/PreNewTank.jpghttp://www.ticketattendant.com/fish/NewTank.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335237",
"author": "woutervddn",
"timestamp": "2011-02-17T00:32:19",
"content": "Although I’m not a big fan of fish and aquaria I love joe’s hack xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335258",
"author": "jeditalian",
"timestamp": "2011-02-17T00:58:56",
"content": "i should take a picture of the fishes in my ‘commode-aquarium’ hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335873",
"author": "andrew",
"timestamp": "2011-02-17T17:39:09",
"content": "I tried to do this with an MDF box coated with latex pool sealer and an acrylic window. Only problem was that I didn’t build a lip to hold the bottom part of the window and therefore could never get it to seal. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335887",
"author": "Werfu",
"timestamp": "2011-02-17T17:51:55",
"content": "I’d call that an Hackuarium!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335909",
"author": "Sigg3",
"timestamp": "2011-02-17T18:17:43",
"content": "Please be careful, water damage costs a lot!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335910",
"author": "Sigg3",
"timestamp": "2011-02-17T18:21:05",
"content": "@jhosman: nice!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1002431",
"author": "Pontazy69 :)",
"timestamp": "2013-05-08T20:17:27",
"content": "Sweet u liked my tank :D",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.739738
|
||
https://hackaday.com/2011/02/16/printing-your-own-guitar-parts/
|
Printing Your Own Guitar Parts
|
Mike Szczys
|
[
"Musical Hacks"
] |
[
"3d print",
"guitar",
"zoybar"
] |
The white parts that make up
the body contours of this guitar have been 3D printed
to meet [Bård S D’s] personal specifications. He started
designing the pieces
last year to add to his Zoybar guitar. Each of the three parts has its own function. The tail piece serves as a floor stand, as well as a hook for hanging the instrument upside down. The wide piece at the top gives the player a place to rest the forearm, and the piece at the bottom serves as a cradle to place on your leg, and contains the jack for the guitar’s pickup. You can see him playing the instrument in the video after the break.
We looked for more information on
the Zoybar system
but it’s a bit hard to get the facts from that website. We know that the 6-string kit comes standard without frets, and it’ll cost you a pretty penny at around $700. But if it performs as a quality instrument the price isn’t too far out of line.
[youtube=http://vimeo.com/19923712 w=470]
| 20
| 19
|
[
{
"comment_id": "334925",
"author": "alan",
"timestamp": "2011-02-16T19:49:10",
"content": "Would be better with a more curvy looking “stand”. it doesn’t flow with the rest of the instrument.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334927",
"author": "max",
"timestamp": "2011-02-16T19:50:34",
"content": "i wonder if it is sable enough. i can tell from my bass that there is a pretty high pressure caused by the strings",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334932",
"author": "NatureTM",
"timestamp": "2011-02-16T20:02:54",
"content": "Looks cool, but I’d like frets, a better bridge, and a place to pivot my right pinkie for soloing. Still, I had a flying-v once and that was definitely an example of form over function and I loved that guitar. The modular design makes me think about the ability to reposition the pickup on the fly, and maybe even hotswap pickups. Just a thought.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334956",
"author": "GameboyRMH",
"timestamp": "2011-02-16T20:35:02",
"content": "Cool, I wonder what kind of plastic was used? I had the idea of printing automotive body panels from ABS plastic. It’s actually a good material for this, a lot of Lotus cars have ABS panels. Of course you’d need a huge printer, but it beats the hell out of fabricating from fiberglass, and if you damage a panel you just print a new one! It would be great for kit/custom car builders.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334961",
"author": "jgunn",
"timestamp": "2011-02-16T20:43:56",
"content": "Video after the break?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334963",
"author": "FightCube.com",
"timestamp": "2011-02-16T20:46:00",
"content": "Video:http://www.thecreatorsproject.com/blog/heres-what-a-3d-printed-guitar-sounds-like",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335004",
"author": "zool",
"timestamp": "2011-02-16T21:29:04",
"content": "mfw “here’s what it sounds like” has heavy distortion",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335011",
"author": "Dopesick",
"timestamp": "2011-02-16T21:42:09",
"content": "The leg cradle, does not contain the jack. The (well I guess the body of the zoybar) contains the jack. The leg piece cradles the cable off of your leg. Keeping you from snagging it or smashing it on your leg and straining the cable and jack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335012",
"author": "Dopesick",
"timestamp": "2011-02-16T21:43:06",
"content": "Oh yeah, more info:http://www.zoybar.net/group/parts",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335069",
"author": "patman2700",
"timestamp": "2011-02-16T22:20:29",
"content": "$700 for an electric guitar made of plastic? Doesn’t sound like a “quality” instrument to me. Musical peskiness aside, awesome hack!!In the grand scale of things, $700 isn’t very much for a musical instrument.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335176",
"author": "Diggit",
"timestamp": "2011-02-16T23:28:17",
"content": "This is not a guitar in the traditional sense.As they put it “open Lego kits for music instruments” This concept has the potential to bring new ideas to life without the need to reinvent the wheel every time. The fact that you can customize a collaborative hardware project is by itself an achievement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335316",
"author": "Agent420",
"timestamp": "2011-02-17T02:18:33",
"content": "@patman2700Actually, there’s little reason quality guitars can’t be made from synthetic materials… In fact, they can offer benefits such as resistance to environmental factors such as humidity and warping.I nearly bought an axe from now defunct “Switch” guitars that used a platic resin they called “vibracell”… The fretboard was created from “Ebinol”, similar to the material used for bowling balls. By all accounts these cheap guitars played and sounded much better than their low price and “plastic” construction implied.http://brainpilot.blogspot.com/2006/08/switch-ultima-iv-signature.htmlIt’s also worth noting that the wood in your “average” guitar plays less of a factor than you might think… Les Paul built his original “log” from little more than a narrow pine plank… Not to mention that the current supply of FSC lumber is of overall significantly less quality than what was available years ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335360",
"author": "dr_pingu",
"timestamp": "2011-02-17T03:47:54",
"content": "well, you’ve made a fretless electric guitar which is quite rare because of usefullnes. then you decide to put a flat fingerboard (I consider it a really bad idea) so it’s good for fast notes and bad for chords.then you make it from plastic, ok that’s good!.but… because the absurd small size ob that body doesn’t mind the material you use for it, it won’t have any sustain (doesn’t mind the pickups u use un it).It will be cool to show it to your friends, but the crap sound will make you not to play it.nice project btw.next time consider:-fretted (please!)-no flat fingerboard (trust me)-much bigger body (sustain is fully on it)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335403",
"author": "The Steven",
"timestamp": "2011-02-17T04:39:53",
"content": "Talk about minimalistic…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335488",
"author": "BluntTrauma",
"timestamp": "2011-02-17T06:36:26",
"content": "Found the CAD file for download.http://www.zoybar.net/group/zoybarcadfiles#",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335743",
"author": "Hacksaw",
"timestamp": "2011-02-17T15:00:52",
"content": "As a trained luthier I need to point out there are so many problems with that thing than you can shake a stick at.I could care less about the material choice but there simply isn’t enough of it.Sustain requires mass since this thing has virtually zero mass the sustain(unless augmented electronically) will be horrible.A flat fingerboard…wow. It was said that the “wood in your average guitar plays less of a factor than you might think” you need to preface that with electric and then completely recant it.If you believe that two guitars made on the same equipment by the same person with the only difference is the body wood will sound the same…or even close you are smoking something I used to. Yes Les Paul made his original electric guitar out of a pine plank…but that was 1940 and he didn’t keep doing that. Innovative? yes.Interesting use of a 3d printer? yes.Quality musical instrument? I doubt it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6665269",
"author": "Jason Summer",
"timestamp": "2023-07-23T18:08:10",
"content": "“Tone wood affects the sound of an electric guitar” 🤡Luthier my left shoe…🙄",
"parent_id": "335743",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "336762",
"author": "walt",
"timestamp": "2011-02-18T16:49:02",
"content": "that’s sweet looking!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336769",
"author": "dominant7th",
"timestamp": "2011-02-18T17:00:38",
"content": "@hacksawExcept the electric guitar hasn’t changed terribly much in 50+ years.You aren’t a luthier, you are a douche. I have more skill in my little pinky than you will ever have from all your training",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337908",
"author": "Zach!",
"timestamp": "2011-02-20T07:20:51",
"content": "This is a cool idea, using a printer, but it’s certainly not worth $700. There simply will not be any sustain. You have almost no mass, and it’s fretless on top of it. Bleh.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.650052
|
||
https://hackaday.com/2011/02/16/guitar-mounted-camera-documents-your-guitar-hero-ness/
|
Guitar-mounted Camera Documents Your Guitar Hero-ness
|
Mike Szczys
|
[
"digital cameras hacks",
"Peripherals Hacks"
] |
[
"camera mount",
"guitar hero"
] |
[The Longhorn Engineer] wanted to record some of his virtual shredding sessions so he built this
camera mount for a Guitar Hero controller
. It holds the camera about a foot below the bottom of the controller, pointing up at the guitar and its player. Since the camera is held tightly to the guitar this produces an interesting effect of movement in the background while the foreground is completely stationary. He set out to complete the build using just one piece of acrylic and some fasteners but added an aluminum support piece because the prototype had a bit too much flex to it. The video after the break walks you through the design, the build process, and finishes with a test run.
[youtube=http://www.youtube.com/watch?v=IomxB9fPiwQ&w=470]
| 5
| 5
|
[
{
"comment_id": "334894",
"author": "vonskippy",
"timestamp": "2011-02-16T19:28:48",
"content": "Nice build instructions but Bwahahahahahaha all that time to record someone PRETENDING to have a real skill. Luckily Activision has killed off that music masturbation scam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334950",
"author": "EFH",
"timestamp": "2011-02-16T20:27:19",
"content": "@vonskippy: you are completely right, fun is a total waste of time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334959",
"author": "Csae",
"timestamp": "2011-02-16T20:43:27",
"content": "May i suggest flipping it around…We don’t exactly see much of anything at that angle.I remember doing something like this, with rubber band and a cellphone but it was aimed at the notes.Especially on GH where strumming is just updown.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335214",
"author": "ChalkBored",
"timestamp": "2011-02-16T23:54:55",
"content": "Why’s that amish guy playing guitar hero anyway?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "389491",
"author": "Fauxsoul",
"timestamp": "2011-05-03T05:51:20",
"content": "Seriously there are some things that people just don’t want to see. This guy playing rock band is one of them…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.689591
|
||
https://hackaday.com/2011/02/16/arduino-fart-o-meter/
|
Arduino-Fart-O-Meter
|
Kevin Dady
|
[
"Arduino Hacks",
"chemistry hacks"
] |
[
"fart meter"
] |
[robomaniac] shows us some serious application of modern technology with his recent Instructable, (the)
Arduino-Fart-O-Meter
. The wireless device uses a “perfboard Arduino” to read a remote wired methane sensor, and send data over a nRF2401A radio transceiver.
“The data” is picked up by another Arduino / transceiver combo, which then drives a servo motor connected to the pointer. The meter itself consists of 6 ranges from “Fresh Air” to “Liquid” so there is no doubt in your standing.
The wireless and remote sensor setup makes this an easy device to include into your loved ones chairs while having the meter far enough away (just in case you have to make a run for it). If you want some more accuracy check out the
Fart intensity detector
we posted about, which adds in temperature and sound to the equation, or how about a chair that
twitters your toots
?
Join us after the break for a quick video, its a real gas.
[youtube=http://www.youtube.com/watch?v=Yv8-mPuJaQ0&w=450]
| 24
| 23
|
[
{
"comment_id": "334801",
"author": "Bergo",
"timestamp": "2011-02-16T17:37:14",
"content": "But does it post the results to twitter? *eye roll*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334825",
"author": "Juls",
"timestamp": "2011-02-16T18:12:07",
"content": "Jerome Thats “n’importe quoi”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334838",
"author": "Tom",
"timestamp": "2011-02-16T18:28:18",
"content": "I hang my head knowing my farts smell very bad due to a too bowel bacteria problems.Even i have to sometimes leave the room because breathing gets hard….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334861",
"author": "chemist dood",
"timestamp": "2011-02-16T18:40:56",
"content": "Eh, it may measure fart volume via methane, but ears do that well enough. Everyone knows that at 75 decibel blast is near odorless, while a 0 decibel SBD/squeaker can clear the room. If this hack wasn’t just a creative use for a spare methane detector, a thiol detector would have better indicated the offensiveness of yon tootin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334875",
"author": "Hacksaw",
"timestamp": "2011-02-16T18:52:24",
"content": "Finally a machine that answers the age old question…who dealt it !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334882",
"author": "fartface",
"timestamp": "2011-02-16T19:08:41",
"content": "methane is odorless… it’s the sulfides and mercaptans that cause the smell, higher concentrations cause more stink.Therefore this thing is 100% useless and was built by someone that knows nothing at all about the subject.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334914",
"author": "nunya",
"timestamp": "2011-02-16T19:36:11",
"content": "You forgot to tag this one as FART to be consistent with your other “fart” topics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334923",
"author": "Jerome Demers",
"timestamp": "2011-02-16T19:44:24",
"content": "@fartfaceAgain, people think about this too seriously! I made that for entertainment purpose!!! It was never intended to be useful, how on earth this thing could be useful?!? I also do not detect the “stink” I just detect the presence of methane. If you fart longer, you produce more gas, the change of producing more methane is higher then a smaller fart. That’s what I am looking for. It’s all about a good laugh!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334930",
"author": "biozz",
"timestamp": "2011-02-16T20:00:35",
"content": "edison “invented” the lightbulb …. tesla invented the radio … and now robomaniac invented the fart-o-meteri believe we have now reached the peak of what mankind can do *hats off*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334935",
"author": "NatureTM",
"timestamp": "2011-02-16T20:05:44",
"content": "@TomThanks for the information. :-/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334947",
"author": "Jerome Demers",
"timestamp": "2011-02-16T20:22:34",
"content": "@biozzYou are hilarious!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334952",
"author": "Fileark",
"timestamp": "2011-02-16T20:31:14",
"content": "I think it is hilarious and fun and enjoyed it thoroughly. However, about 2/3 of the population create no methane gas and the other third do. This is an incredible disappointment to some who have tested the flammability of their emissions and failed to make a flame.Where this detector could be used is to identify the persons who create the above mentioned green house gas and therefore should be docked on their carbon footprint. Methane is 21 times worse as a greenhouse gas than CO2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334995",
"author": "qwerty",
"timestamp": "2011-02-16T21:22:42",
"content": "That one would be an useful gadget to keep at hand when I cook burritos for my friends:=)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335009",
"author": "caleb",
"timestamp": "2011-02-16T21:37:04",
"content": "oo is that chili? mmmmm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335111",
"author": "Hirudinea",
"timestamp": "2011-02-16T22:50:00",
"content": "They should hook up a vocal readout, with something from “What was that?” to “HOLY F**K!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335207",
"author": "cmholm",
"timestamp": "2011-02-16T23:43:20",
"content": "Now that vog season is back in HI, I was thinking along the lines of an SO2 sensor, but couldn’t find a project to build on. So, thanks! Too bad Sparkfun doesn’t sell a sulfur dioxide module. I may try to make do with a CO sensor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335314",
"author": "StevieRay",
"timestamp": "2011-02-17T02:15:18",
"content": "@Jerome DemersPay no attention to “fartface”, he’s the resident expert on all subjects and could redo all of our projects better. He’s also a master at identifying bad solder joints from blurry photos.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335333",
"author": "schmidtn",
"timestamp": "2011-02-17T02:57:18",
"content": "If you use the Parallax CH4 Methane Sensor you can also detect other gasses that are present in everyone’s farts. I know because I did extensive research when I made my Fart/Arduino project.http://www.instructables.com/id/Fart-Operated-Random-Channel-TV-Remote/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1527190",
"author": "mike",
"timestamp": "2014-05-29T06:47:41",
"content": "Can you detect farts from across the room?",
"parent_id": "335333",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "335470",
"author": "bty",
"timestamp": "2011-02-17T05:57:54",
"content": "@biozz: it’s a bit shortsighted to attribute the invention of radio solely to Tesla.http://en.wikipedia.org/wiki/Invention_of_radio",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335540",
"author": "pun",
"timestamp": "2011-02-17T08:35:08",
"content": "So the Arduino is finally seen in its natural habitat… :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335595",
"author": "strider_mt2k",
"timestamp": "2011-02-17T10:31:14",
"content": "Considering the subject, I’m not surprised that the comments mostly group in the lower percentile.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336824",
"author": "emo",
"timestamp": "2011-02-18T17:59:28",
"content": "The website is great! @walt If you consider yourself a hardcore hacker then don’t look at simple projects. Electronics is for everyone not only for the experts and I’m sure that every expert has started from a simple instructable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336834",
"author": "mjrippe",
"timestamp": "2011-02-18T18:32:25",
"content": "@walt – The anti-Instructables rants have already been done on another post – you are late for the party. In case you had not noticed, there has been a significant increase in the number of posts here on HaD. Even if you skip the ones from Instructables there are a ton of quality hacks.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.909991
|
||
https://hackaday.com/2011/02/16/long-range-laser-night-vision/
|
Long-range Laser Night-vision
|
Mike Szczys
|
[
"digital cameras hacks",
"Laser Hacks",
"Video Hacks"
] |
[
"infrared",
"ir",
"laser",
"night vision",
"scope"
] |
[Oneironaut] is back at it again, churning out yet another great hack in this
long-distance night vision build
. This isn’t the first time we’ve seen him build a night vision device, you may remember
the monocle he put together
using the view finder from an old camcorder. This time around he’ll give you look at distant object by using a laser instead of LEDs. He pulled an IR laser diode out of an old CD burner, then used a lens to spread out the dot in order to illuminate a larger area. A standard rifle scope is used as the optics, along with a security camera which can detect the infrared light. As always, he’s done a fantastic job with the images and the write-up. You’ll find his overview video embedded after the break.
| 24
| 23
|
[
{
"comment_id": "334756",
"author": "John",
"timestamp": "2011-02-16T16:25:17",
"content": "a) That music was annoying as hell.b) He’s talking like he’s trying to sell it.c) Cool stuff, and his build writeup was awesome. Much better than the video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334795",
"author": "matthew phillips",
"timestamp": "2011-02-16T17:28:54",
"content": "It looks as though his scope knowledge is off.It’s a 4x zoom with a 32mm aperture. Not 32 times zoom!Looks good though, shame he doesnt mate the high lux camera with a small lcd screen and attach it to a rifle. Night vision on the cheap….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334807",
"author": "RadBrad",
"timestamp": "2011-02-16T17:42:58",
"content": "Thanks for posting my hack!@Mathew, thanks for pointing out the error – the scops is indeed a 4×32, but the 4 was worn off, leaving only the “x32” part, and combined with the zoom of the CCTV lens, it did seem like x30.That mistake has been fixed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334833",
"author": "Robot",
"timestamp": "2011-02-16T18:17:10",
"content": "RadBrad,Creative use of laser diodes and nicely documented. Thank you, I enjoyed it. One thing that you probably know but is worth mentioning is that most low cost 532 nm (and other color) lasers use frequency doubling crystals to convert the output of an IR laser to visible light. So, at the heart of most cheap green or blue laser pointers is a IR laser diode.(Wikipedia reference:http://en.wikipedia.org/wiki/Laser_pointer)– Robot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334847",
"author": "Tom",
"timestamp": "2011-02-16T18:30:59",
"content": "That is very clear nightvision. Very sharp and hardly any visual noise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334879",
"author": "RadBrad",
"timestamp": "2011-02-16T19:03:29",
"content": "Thanks for the comments.In the video, I ended up using a 250 mW laser diode with no lens at all, and the patterns that can be seen are actually dust particles being projected onto the scene. Once I took some cleaner and a qtip to the diode window, the patterns were gone.My original version used the infrared laser diode pulled from a green pointer, and it was a lot of work to extract it! I did a writeup on the early version in 101 Spy Gadgets for The Evil Genius.With the cost of green laser pointers these days, I think that would be the best source for an infrared laser diode in the 100 to 250 mW range.Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334891",
"author": "loonquawl",
"timestamp": "2011-02-16T19:25:24",
"content": "Nice pictures, but a 250mW laser in the near infrared is nightmare stuff. No reflex blink, no filtering. If this bounces off something shiny and back into your eye focussed by Lady Luck, the your retina is going to seriously warm up to the subject.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334915",
"author": "Drake",
"timestamp": "2011-02-16T19:37:38",
"content": "@loonwuawlYou do have a point there but more-so for others in the area rather then the user …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334917",
"author": "Brent",
"timestamp": "2011-02-16T19:38:31",
"content": "Woops. I posted on the earlier hack.This is really cute, safety warnings aside.But 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": "334924",
"author": "RadBrad",
"timestamp": "2011-02-16T19:48:07",
"content": "@ Brent,Those patterns are actually microscopic dust particles being projected onto the target, not Newton’s rings. I was using the bare diode (no lens), and the dust on the tiny glass window caused the patterns.Once I took some cleaning alcohol to the window, all of the rings (patterns) were completely gone. Of course, the oblong beam is just a characteristic of the unfocused laser diode, but that was a plus in this system, not a minus.Yes… this is NOT an eye-safe project. Oddly, commercial systems output as much as 1watt of laser radiation, and focus the beam to a much smaller target and claim “eye safe” operation. I am not taking any risks though… I want to keep my one good eye in working order!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334926",
"author": "Brent",
"timestamp": "2011-02-16T19:49:29",
"content": "Drake: no. Loonquawl is right. Reflections are a very serious matter in laser safety.Since he’s causing the beam to diverge, it’s not that bad. I wouldn’t exaggeratedly warn people not to do very specifically exactly what he did. But:1) Personally I wouldn’t fiddle around with high-powered invisible lasers without the kinds of safety precautions (goggles are a last resort that can teach you bad habits, not a first line of defense) one would find in an industrial or academic laser lab.2) (Because) You could screw up and hurt yourself trying this at home if you deviate much from the script.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334933",
"author": "Brent",
"timestamp": "2011-02-16T20:03:07",
"content": "Brad, I meant commercial infrared spotlights of the sort that use infrared filters or IR leds.The dust particles aren’t just getting projected, they’re diffracting and the diffraction is causing those interference patterns. Again, that’s an inherent issue when you use coherent light.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334943",
"author": "RadBrad",
"timestamp": "2011-02-16T20:20:59",
"content": "@Brent – thanks for the info, as a hardware hacker, I am in a constant state of learning and always enjoy the feedback and new information!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335106",
"author": "Hirudinea",
"timestamp": "2011-02-16T22:44:24",
"content": "Cool, I want to put something like this on my car, infrared headlights and no one can see me driving at night!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335149",
"author": "maglev45",
"timestamp": "2011-02-16T23:01:43",
"content": "Cool..!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335174",
"author": "macona",
"timestamp": "2011-02-16T23:24:11",
"content": "Get a 1550nm laser diode and make it eye safe.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3176340",
"author": "Martin",
"timestamp": "2016-09-01T10:54:43",
"content": "And a very expensive camera – AFAIK normal silicon sensors are not useful in this range.",
"parent_id": "335174",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "335309",
"author": "therian",
"timestamp": "2011-02-17T02:12:19",
"content": "By focusing beam this turns into stealthy long range eyes destroyer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335376",
"author": "drew",
"timestamp": "2011-02-17T04:09:38",
"content": "This is seriously one of if not the most awesome things I have seen on HaD ever, and one of the best writeups as well!I am definitely making this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335485",
"author": "drew",
"timestamp": "2011-02-17T06:31:11",
"content": "Also- @ macona- explain?How would a 1550 wavelength be safe? It’s still high powered laser light at the cornea. Am I missing something?If this could be made with a laser that is completely eye safe without goggles (which I don’t know to exist), this would be the ultimate.Could a filter be placed between the laser output and exiting the case to polarize it, rendering it viewable only from polarized optics, or modifying the wavelength of the beam to something not viewable by commercial ir sensitive equipment?What modifications through filters or lenses would be possible?I mean, if you were using this for stealth, it’s pointless if others are looking for you with night vision equipment- this would broadcast your position like the tailstream on a launched model rocket- instantly spotted. Although, I like the adjusting focus- start with the normal pin sized beam to spot a point, then adjust just enough to illuminate the key area- a sort of adjustable long range spotlight.If you could, through a filter, change the properties of the laser to be viewable only to something that sees the modified range beyond the sensors of normal night vision equipment, then you would be truly stealth, even against others with night vision equipment.I want a version of this using a panning scanning IR laser to pick up and map thermal signatures at a distance- I could finally become predator.Finally- for serious hunters, make the scope a Burris Eliminator with it’s range finding bullet drop laser dot calulator, and you could snipe deer at night with all headshots at 500+ yards, assuming you live somewhere where night hunting is legal. Yeaaaah.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335515",
"author": "Rick",
"timestamp": "2011-02-17T07:43:38",
"content": "Nice idea…but standard, cheap, silicon, focal plane arrays are not responsive at 1550nm.About the best you could go with is 1060nm..http://www.walshcomptech.com/repairfaq/sam/sipdresp.gifTo visualize 1550nm would require something along the lines of an InGaAs focal plane array and those cost $$bank$$And 1550nm is often deemed “eye safe” (often incorrectly), because as you increase wavelength, above our ability to visualize(800nm), it requires more optical power, and/or a longer exposure time, to physically damage the human eye.http://en.wikipedia.org/wiki/File:IEC60825_MPE_J_s.pngThe human eye is also an optical filter and (go figure) it is the most responsive to light that we can actually see (400-800nm).As you move outside of that you are not completely immune to damage, because you have a higher risk of exterior eye problems….like cornea burns (similar to cataracts).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335598",
"author": "strider_mt2k",
"timestamp": "2011-02-17T10:36:18",
"content": "I used to build some pretty interesting 3rd gen based night vision systems for surveillance use.That is some very nice performance, but the laser causes concerns already voiced above.Probably one of the few aspects of that job that I miss.That, and the esoteric video and audio gear.Anyhoo, well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336226",
"author": "tantris",
"timestamp": "2011-02-18T00:19:12",
"content": "eye safety: since there’s no blink reflex with ir this is a big concern. but a laser beam that gets widened by a lens can be on the safe side.important is not the total output power, but the intensity (power per area). take a 200mw laser and widen it to a 4 foot circle and the intensity is way below a normal 1/4mw laser with a 1/4inch beam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338884",
"author": "Doktor Jeep",
"timestamp": "2011-02-21T19:31:40",
"content": "Please be careful with the IR people. Please.Also on the monacle using the viewer from an old camcorder:Be careful about pumping too much voltage into one of those old tiny CRTs. They can generate X-rays if the voltage is off. Sometimes when you take one apart there is a warning sticker in there.Finally, keep in mind that a security camera on the cheap is not the only CCD type device you can use. Try a search on low light cameras and you will find there is a whole world out there full of specialized (but pricey) cameras that can see in the dark without infrared sources.It would be nice to see the output on a small LCD, ending up ultimately with a rifle scope similar to the sniper scope in Halo.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.848879
|
||
https://hackaday.com/2011/02/15/nimbus-the-wall-following-robot/
|
Nimbus, The Wall-following Robot
|
Mike Nathan
|
[
"Arduino Hacks",
"Robots Hacks"
] |
[
"arduino",
"autonomous",
"proximity sensor"
] |
[Johannes] sent in the latest iteration of an ongoing project –
Nimbus, the wall-follwing robot
. Originally operating on a cardboard frame, the robot has undergone
several
revisions
as you can see by reading through his blog. Nimbus started out as a simple, Arduino-powered robot, but the project has progressed nicely over time. The last revision simply avoided walls, using a Sharp IR proximity sensor to detect, then avoid obstacles. The most recent model sports a nice polycarbonate frame as well as two additional IR proximity sensors, allowing Nimbus to navigate quite well, following walls and avoiding obstacles with ease. It does get caught up from time to time on carpets and wires, but overall Nimbus is a great little robot. [Johannes] even added a small RGB status LED for the bottom of the bot, communicating its navigation status to the operator at all times. This is done by flashing various colors when objects have been discovered or have moved out of sight – it’s a really novel addition.
Keep reading for a video of Nimbus navigating his way around, and don’t forget to check out the
Nimbus photo stream
.
[youtube=http://www.youtube.com/watch?v=WyHDMOdN6TY&w=470]
| 4
| 4
|
[
{
"comment_id": "333960",
"author": "rasz",
"timestamp": "2011-02-15T18:18:21",
"content": "Content from EMI, cant embed video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334075",
"author": "Kiwi",
"timestamp": "2011-02-15T20:17:51",
"content": "Impressive little bot! Nice design, cool little package, groovy function: WELL DONE! Make a kit and sell that sucker and make yourself some money!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334541",
"author": "pppd",
"timestamp": "2011-02-16T11:01:35",
"content": "I really like the clip! Marketing is what many cool projects lack.. yours could be an example how to present one’s work :)!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "998337",
"author": "Sam",
"timestamp": "2013-04-26T21:06:01",
"content": "Cool! There is a tutorial for a wall-follower using 3 binary sensors at:http://lucidtronix.com/tutorials/5",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.043619
|
||
https://hackaday.com/2011/02/15/wwiis-top-cryptography-comes-to-a-childs-toy/
|
WWII’s Top Cryptography Comes To A Child’s Toy
|
Mike Szczys
|
[
"Arduino Hacks",
"Security Hacks",
"Toy Hacks"
] |
[
"cryptography",
"enigma machine"
] |
This toy has some
upgraded internals that turn it into an Enigma machine
. We absolutely love the idea, as it takes a toy that your child may have grown out of, and uses it to provide teachable moments dealing with both history and mathematics. But who are we kidding? We want to make one just because it’s a fun project.
[Sketch] grabbed this toy from a thrift store because it has a full keyboard that he can use to make his own machine. It’s powered by an Arduino, with a four-line character LCD display taking the place of the original. His post covers the methods he used to figure out the keyboard wiring, and also contains a cursory overview of how the
Enigma Machine
functions. See a video of the finished project after the break.
If this wet your appetite, also
check out the paper Enigma Machine
we covered during Hackaday’s first year.
[youtube=http://www.youtube.com/watch?v=STRc6xCTAIc&w=470]
| 12
| 10
|
[
{
"comment_id": "333913",
"author": "Chris",
"timestamp": "2011-02-15T17:12:01",
"content": "Its a hilarious idea that a child’s toy can be transformed into the NAZI’s ultimate code machine… good job",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2941062",
"author": "Antron Argaiv",
"timestamp": "2016-03-02T13:55:54",
"content": "Point of order: Enigma was in no way “the NAZI’s ultimate code machine”. The Lorenz SZ40http://www.cryptomuseum.com/crypto/lorenz/sz40/index.htm“TUNNY”, was far harder to crack than the Enigma, and the Siemens T43http://www.cryptomuseum.com/crypto/siemens/t43/was even more difficult, as it used a key tape.",
"parent_id": "333913",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "333990",
"author": "supershwa",
"timestamp": "2011-02-15T18:29:53",
"content": "@Chris — actually, the NAZI’s ultimate code machine was transformed into a child’s toy. ;)Should put these into production — the more smart toys kids have, the more intelligent they’ll be later in life. Cool hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333998",
"author": "Hunter",
"timestamp": "2011-02-15T18:51:30",
"content": "See this is what happens when the NSA and FisherPrice get together.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334009",
"author": "Editor",
"timestamp": "2011-02-15T19:28:17",
"content": "whet* your appetite.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334012",
"author": "rusty",
"timestamp": "2011-02-15T19:30:01",
"content": "the cow said: spill the blood of the innocent",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1071743",
"author": "Pixel Pony",
"timestamp": "2013-10-09T09:58:27",
"content": "Thank you for giving me an idea for my next project!…Now I need to find a See ‘n Say.",
"parent_id": "334012",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "334091",
"author": "Peter",
"timestamp": "2011-02-15T20:49:28",
"content": "Don’t depend on it for your top secret communications:http://www.bletchleypark.org.uk/And send those folks a donation!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334101",
"author": "flapjackboy",
"timestamp": "2011-02-15T21:33:48",
"content": "http://www.bletchleypark.org.uk/shop/view_product.rhtm/133066/238531/detail.html^^ I’d much rather build one of these.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334150",
"author": "Hirudinea",
"timestamp": "2011-02-15T22:38:56",
"content": "Dis ting is da BOMBE!http://ed-thelen.org/comp-hist/NSA-Enigma.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334274",
"author": "strider_mt2k",
"timestamp": "2011-02-16T00:51:26",
"content": "Just be sure to throw it out of your submarine if you get boarded.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334362",
"author": "Spork",
"timestamp": "2011-02-16T03:59:29",
"content": "Hahaha, HaD readers are especially punny today. Thanks for the laugh.A friend of mine wrote the Enigma Machine in java for a final project. It was great!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,274.95477
|
||
https://hackaday.com/2011/02/15/inexpensive-robot-platform-combines-mass-produced-parts/
|
Inexpensive Robot Platform Combines Mass-produced Parts
|
Mike Szczys
|
[
"Linux Hacks",
"Robots Hacks"
] |
[
"create",
"irobot",
"Kinect",
"robotic operating system",
"ros"
] |
Meet
Bilibot, a modular robot
that aims to lower the cost of entry for robotic tinkerers. It combines the Kinect, the iRobot Create, and an Ubuntu box running ROS using some laser cut mounting brackets. These are relatively inexpensive components but the most exciting thing is that there’s already a slew of example out there that use this hardware. For instance, we looked in on
ROS body tracking
in January that can be directly plucked and used with this hardware. You’ll recognize the base as the iRobot create which was used in
video chat robot from last week
. The brains of the operation come in a choice of three Linux boxes – two headless and one laptop – which have
ROS
pre-installed. Watch the open-source autonomy as it tools around the office in the video after the break.
[youtube=http://www.youtube.com/watch?v=xFVNrkd3JJU&w=470]
[Thanks David via
Hizook
]
| 11
| 11
|
[
{
"comment_id": "333891",
"author": "GameboyRMH",
"timestamp": "2011-02-15T16:39:17",
"content": "This should make it cheap and easy to build a telepresence robot. This has pretty much all the hardware ready-to-go, just add software. It should even be possible to get stereoscopic video from this thing.Idea: You know what would be useful? An open protocol for controlling telepresence robots. Something that just sends fairly abstract commands, like camera P/T/Z and movement commands, and negotiates audio and video connections, which could use as existing open protocol like SIP.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333893",
"author": "aeris",
"timestamp": "2011-02-15T16:48:28",
"content": "Why make a robot for $20 when you can do it for $2000 ? Because I have money but no genius.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333926",
"author": "CameronSS",
"timestamp": "2011-02-15T17:33:05",
"content": "http://xkcd.com/413/anyone? If only they’d used an EeePC instead of that Dell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333927",
"author": "nafkin",
"timestamp": "2011-02-15T17:34:05",
"content": "“…the Bilibot is projected to cost $650…”That seems fairly reasonable considering the platform, and requiring virtually no initial labor for the end user. Sure you can do it for less, but if it provides an easy option to get somebody started and learning, great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333937",
"author": "rasz",
"timestamp": "2011-02-15T17:48:28",
"content": "Very exciting in terms of what ROS can deliver, especially combined with Kinect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334056",
"author": "Steve Webb",
"timestamp": "2011-02-15T19:47:44",
"content": "So does it vacuum my floors while its roaming around?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334088",
"author": "lwatcdr",
"timestamp": "2011-02-15T20:48:33",
"content": "I wonder if it needs to have the brains on board. Would you have enough bandwidth to send the data over wifi to a desktop PC?It does look like it will take a pretty powerful computer for this. How long until we get some Tegra 2 and or OMAP 5SBCs that can run this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334154",
"author": "bunedoggle",
"timestamp": "2011-02-15T22:45:56",
"content": "Love the idea but I do feel that the roomba is kicking up the price needlessly. If you’re adding a pc then the roobma is only adding locomotion (or are there sensors on it being used?).BYW, if you don’t like their choice of computer (other commenters), they are open to suggestions about that part:http://www.bilibot.com/platforms/suggest",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334754",
"author": "Ekaj",
"timestamp": "2011-02-16T16:23:52",
"content": "Congratulations to this “hacker” <-LOL for taking all of the genius, creativity and skill out of robot building.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "346488",
"author": "IJ Dee-Vo",
"timestamp": "2011-03-02T22:10:41",
"content": "@EkajActually he did just the opposite.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1312809",
"author": "fire blight",
"timestamp": "2014-03-29T17:12:07",
"content": "Awesome post.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.001087
|
||
https://hackaday.com/2011/02/15/super-brite-led-snakers/
|
Super Brite LED Sneakers
|
Kevin Dady
|
[
"LED Hacks"
] |
[
"led shoes"
] |
[i am jen] needed to spice up some shoes, and what better way to do that, than to
spike them out in LEDs controlled by a micro controller
. In order to make the LED strips, an inventive use of Velcro is applied. One half of the strip is secured to the shoes, while the other half gets a sheet of electrical tape on the sticky side. Small holes are then punched though the strip and the LEDs are then soldered.
Electronicswise the shoes are using a pair of 6 volt batteries, with no readily available holder, a “AA” battery holder is chopped to size and glued back together. Patterns are controlled by a
Really Bare Bones Board Arduino
, (which, even if your not an Arduino fan, is a cool little AVR breakout board for 28 pin chips) and cycles through different patterns using magnets and reed switches on the inside edges of the shoes.
Even if its not your style, check it out for a few good hacks and join us after the break for a short video.
[youtube=http://www.youtube.com/watch?v=HwDTeOsYF88&w=450]
| 19
| 19
|
[
{
"comment_id": "333848",
"author": "Moggie100",
"timestamp": "2011-02-15T15:25:26",
"content": "“Snakers”… ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333852",
"author": "Wes",
"timestamp": "2011-02-15T15:33:04",
"content": "They’re snakey!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333857",
"author": "The Cageybee",
"timestamp": "2011-02-15T15:47:24",
"content": "Turns to kid: “You call that lights in your sneakers?”“That’s not lights in your sneakers…This is lights in your sneakers!!!!”(Said in a crocodile Dundee accent)Kid: Crying",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333866",
"author": "alan",
"timestamp": "2011-02-15T16:00:41",
"content": "of course, pick the most ugly pair of sneakers and stick a bunch of LEDs on them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333874",
"author": "FightCube.com",
"timestamp": "2011-02-15T16:11:20",
"content": "@alan – I know right!? Pfft, I’ve got 4 pairs of REALLY GOOD kicks decked out with some REALLY GOOD LEDs… not those shitty ones. What a hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333875",
"author": "elektrophreak",
"timestamp": "2011-02-15T16:11:59",
"content": "now you can program some POV in it, just run like hell and it will do the work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333881",
"author": "GameboyRMH",
"timestamp": "2011-02-15T16:24:41",
"content": "Came in to find out what “snakers” are, leaving disappointed…But, serious idea: Make a “shoe LED-ification kit” and sell them to ravers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333912",
"author": "Booker T. Worthington",
"timestamp": "2011-02-15T17:08:27",
"content": "Sorry Jen, lights aren’t really appropriate on shoes like this. Suede is rustic, LEDs are hight-tech.Platforms with clear soles are definitely the way to go here:http://bit.ly/enJkNV.@GameboyRMH I haven’t ravers around here wear stuff like this in over ten years. Maybe they still do in other parts of the world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333914",
"author": "Booker T. Worthington",
"timestamp": "2011-02-15T17:12:58",
"content": "Anyone remember hearing about LumaLive?http://www.dailymotion.com/video/xdgvg_philips-lumaliveSupposed to launch in May 2011.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333919",
"author": "Jordan",
"timestamp": "2011-02-15T17:19:33",
"content": "Oh wow, I did this last summer for a friend with less LEDs and dollar store LED flasher boards.I don’t recall if we ever took pictures or video :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333924",
"author": "rasz",
"timestamp": "2011-02-15T17:23:09",
"content": "dont you just love the classic “Arduino to blink led” hack? with Instructables as a bonus …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334001",
"author": "vonskippy",
"timestamp": "2011-02-15T19:00:25",
"content": "When worn, guaranteed to prevent hetro sex in a 3 meter radius for up to several days after the leds were turned off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334002",
"author": "djrussell",
"timestamp": "2011-02-15T19:03:57",
"content": "this undermines the primary function of sneakers. “for sneaking!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334047",
"author": "GameboyRMH",
"timestamp": "2011-02-15T19:37:35",
"content": "@Booker T. Worthington: I dunno what ravers wear in any detail beyond “bright colors and glowing things,” it just looked like the kind of thing they’d be into.@vonskippy: I lol’d XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334081",
"author": "Erik Johnson",
"timestamp": "2011-02-15T20:35:00",
"content": "@Booker T. Worthington I decided not to wait and make my own :http://www.youtube.com/watch?v=SsQ1poUNYqw@GameboyRMH raver love *anything* than flashes or lights up, these shoes included",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334146",
"author": "Hirudinea",
"timestamp": "2011-02-15T22:36:47",
"content": "Great, now all he has to do is put EL wire on his underwear!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334233",
"author": "Alex",
"timestamp": "2011-02-15T23:40:21",
"content": "Looks pretty neat, but also like they’ll get broken pretty easy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334759",
"author": "Ekaj",
"timestamp": "2011-02-16T16:26:56",
"content": "Ummm, ever heard of surface mount components? This “hack” will last about 10 minutes if you’re walking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337517",
"author": "jbotalan",
"timestamp": "2011-02-19T15:44:29",
"content": "Relevant.http://homestarrunner.com/sbemail116.htmlI came here just to post that.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.158896
|
||
https://hackaday.com/2011/02/15/ir-controlled-musical-alarm-clock/
|
IR-controlled Musical Alarm Clock
|
Mike Nathan
|
[
"Microcontrollers",
"Musical Hacks"
] |
[
"ir",
"music",
"Teensy"
] |
Forum user [Frank] shared with us his recent project,
a musical alarm clock
. More than just a simple alarm clock, his creation allows the user to load music onto a micro SD card, has alarm settings for each day of the week, and best of all, can be controlled using an IR remote. He uses a Teensy++ to control most of the clock’s functions including the display, delegating the time keeping to a DS1307 real-time clock. All of the audio playback is handled by a separate music decoder mounted on a breakout board.
His Instructables writeup
is extremely detailed, with tons of annotations, pictures, diagrams, and source code available. He walks through each step in detail, making this a great learning guide for others looking to start in on AVR programming.
His final presentation is a great lesson in recycling, though unfortunately a bit lackluster, as the clock is packaged in an old SparkFun cardboard box. He does mention that there were some time constraints towards the end, which may explain this choice – it would be nice to see a revised version of this clock packaged in a nice plexi case.
| 11
| 11
|
[
{
"comment_id": "333843",
"author": "Scott",
"timestamp": "2011-02-15T15:17:50",
"content": "DAMMIT!I was working on a project extremely similar to this. I thought it up in August, but have only really made headway lately. (Sadistic) MP3 playing alarm clock using an ATMEGA32A, VS1053, and an SD card for storage. Mine is going to use a VFD display instead of an LCD, though. I’m also using a DS3231 instead, which I have because I sampled it for a previous project. The word sadistic comes from how difficult I am going to make it to snooze and turn off. Think missile switches and decreasing snooze-time. Maybe some more annoying stuff as I come up with it.This instructable has me no longer afraid of dealing with SD cards and the FAT filesystem, thanks! I’ll take a closer look at it after work.I appreciate your work, even if it makes my project less novel. Just let it be known that when (and if) I submit it to hackaday that the idea was conjured up in Summer 2010. Procrastination is a bitch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333844",
"author": "Daniel",
"timestamp": "2011-02-15T15:18:54",
"content": "Love the SparkFun Complimentary Project Enclosure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333872",
"author": "elektrophreak",
"timestamp": "2011-02-15T16:08:18",
"content": "a cardboard box, really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333876",
"author": "ColinB",
"timestamp": "2011-02-15T16:12:30",
"content": "Cardboard is great for hacking together quick prototypes before deciding on a final case. You can easily many several different prototypes before making a final decision.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333880",
"author": "Andrew",
"timestamp": "2011-02-15T16:21:59",
"content": "@Scott“when (and if) I submit it to hackaday that the idea was conjured up in Summer 2010. Procrastination is a bitch”It sure is. I’ve got projects from several years ago that are unfinished or undocumented.Let me know how to overcome the procrastination.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333916",
"author": "Scott",
"timestamp": "2011-02-15T17:16:13",
"content": "@AndrewEither you need to seek treatment for ADHD (like myself), or your life is busy enough already.Breaking a project down into small parts is extremely helpful, and it’s what allowed me to get back into it. I also (attempt) to keep a notebook related to the project, a journal if you will.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334007",
"author": "Drone",
"timestamp": "2011-02-15T19:22:12",
"content": "HaD, every time you post an Instructables link you should postpend (Sorry!) to it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334213",
"author": "Bill D. Williams",
"timestamp": "2011-02-15T23:18:02",
"content": "The re-used sparkfun box was clever the first time I saw someone use it. Not so much the second, third, and 984th time.You get a grade F for the “enclosure”. And you get an F for instruct-a-bullsh*t. (otherwise nice project!)If you still want to read instructables with out all their junk – here’s how:http://daid.mine.nu/instructabliss/^check it out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335611",
"author": "strider_mt2k",
"timestamp": "2011-02-17T11:01:53",
"content": "I was also very pleased with the quality of my Sparkfun free enclosure.I like that place.-the project is VERY cool and I like the enclosure.Nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337850",
"author": "Rsm",
"timestamp": "2011-02-20T04:46:35",
"content": "I would seriously love to see that alarm clock with missile switches? & decreasing snooze settings…if i didnt sleep in & ignore my alarm clock every day, i’d totally have time to procrastinate and still b productive lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339403",
"author": "Scott",
"timestamp": "2011-02-22T13:47:02",
"content": "@RsmHow about I make it increasingly louder, too?I’m finding that I don’t have as much time to work on this as I’d like, but I’ll eventually finish it or I won’t forgive myself.I have the missile switches already…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.205682
|
||
https://hackaday.com/2011/02/15/shockingly-fun-quiz-game/
|
Shockingly Fun Quiz Game
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"disposable",
"flash",
"Joystick",
"quiz game",
"shock"
] |
Gather your friends round the living room for
a head-to-head quiz game
. This one’s not quite as nice as you might think. Get an answer wrong and you’re going to
get the Venkman treatment
thanks to the stored electricity in a disposable camera flash circuit. [Israel] runs the game questions from a Windows machine, and uses a set of four USB joystick buzzers that let each contestant ring in. They all wear a cuff that houses electrodes for negative-reinforcement upon an incorrect answer. Since every contestant answers each question it won’t be long before you hear the uncomfortable yelp of failure from your guests. This seems a little bit more fair than
shocking people for not calming their minds
, but the video from that hack is still one of our all-time favorites.
| 6
| 6
|
[
{
"comment_id": "333794",
"author": "DeadlyFoez",
"timestamp": "2011-02-15T13:49:51",
"content": "sweet. I could adapt this for my kids. That will help keep them in line and I wont have to chase them with the taser anymore.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333853",
"author": "andrew",
"timestamp": "2011-02-15T15:34:08",
"content": "Go back to psych 101, it’s punishment (technically, positive punishment), not negative reinforcement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334122",
"author": "caleb",
"timestamp": "2011-02-15T22:08:56",
"content": "love these things!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334251",
"author": "Cinezaster",
"timestamp": "2011-02-16T00:21:07",
"content": "http://www.instructables.com/id/ElectroFried-electronic-shock-game/The shocking feature in games will be a common feature in the future. Every gamer needs to have a shocking device to interface there games",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334288",
"author": "Blue",
"timestamp": "2011-02-16T01:13:47",
"content": "Noted: Don’t go to Israel’s house on game night.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337514",
"author": "zeropointmodule",
"timestamp": "2011-02-19T15:33:46",
"content": "heh.. what about using the inverter module from an EL backlight? The inverter from a disposable camera is a bit too high frequency.also guys, be VERY careful with this as pacemakers and other implantable devices don’t take kindly to applied voltages.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.280944
|
||
https://hackaday.com/2011/02/14/pactuator-mechanical-pac-man-frame/
|
Pactuator: Mechanical Pac-Man Frame
|
James Munns
|
[
"Misc Hacks"
] |
[
"art",
"frame",
"game",
"man",
"pac",
"pac-man",
"video"
] |
As a proof of concept for his long term work in progress “The Pac-Machina” (an electro-mechanical reimagining of a Pac-Man cabinet), [Jonathan] needed some way to make a
mechanical Pac-Man
, flappy jaw and all. After working through a couple different design possibilities, he decided on an interesting setup which includes using a cog with only half its teeth to make the mouth open and close. Unfortunately, NAMCO BANDAI has asked him nicely not to sell these as kits, but he has helpfully included just about all that is required to make one of these from scratch. [Jonathan] even cut and laser etched his own faux-Victorian frame to keep his proof of concept Pac-Man ready until needed for the main project.
| 16
| 16
|
[
{
"comment_id": "333314",
"author": "Random reader",
"timestamp": "2011-02-15T01:05:25",
"content": "wouldnt this spark more intrest into pacman uping there own profits? mhegrate work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333328",
"author": "JC",
"timestamp": "2011-02-15T01:29:31",
"content": "Too bad about Namco. Guess they do own the copyright though. Pretty neat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333301",
"author": "strider_mt2k",
"timestamp": "2011-02-15T00:44:11",
"content": "NAMCO BANDAI in great worry for the potential income they’ll lose and the great harm this will do to the franchise.Translation: NAMCO BANDAI are humorless dicks.Beautiful work.A tribute like this should be celebrated, as opposed to suppressed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333379",
"author": "Hirudinea",
"timestamp": "2011-02-15T02:08:14",
"content": "So that’s how Pac Man works, its like a virtual pactopsy!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333387",
"author": "FightCube.com",
"timestamp": "2011-02-15T02:33:12",
"content": "Wow, that’s a beautiful and inspiring piece of Art there! LOVE IT! Namco Bandai can go suck a lemon! You’d probably be alright if you didn’t call it PAC-MAN, but rather something like MECH-MAN. Add a crank handle to keep it flowing smoothly and it’s a wrap!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333388",
"author": "Greycode",
"timestamp": "2011-02-15T02:37:04",
"content": "Oh yeah, this is certainly going to cost NAMCO BANDAI a lot of money for something like this to be sold. NAMCO BANDAI are a bunch of dicks!Wow, this is certainly something clever. You can not help but think he would have done very nicely in a steam punk setting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333461",
"author": "quinlan",
"timestamp": "2011-02-15T04:38:21",
"content": "this is awesome i have not seen a cool pac man item like this that is somthing to comemorate the high achivement of pacman",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333494",
"author": "Ryan",
"timestamp": "2011-02-15T05:21:48",
"content": "I’m very interested in how he plans to move the characters around. He mentions a two axis gantry, but there are 5 moving objects. How will he deal with overlap?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333505",
"author": "Concino",
"timestamp": "2011-02-15T05:33:52",
"content": "no video? :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333511",
"author": "Archy Bunka",
"timestamp": "2011-02-15T05:42:17",
"content": "A. Bunka here.At least Namco didn’t sue him.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333513",
"author": "FightCube.com",
"timestamp": "2011-02-15T05:46:16",
"content": "@Concino – Video here:http://vimeo.com/jmg/pactuator",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333599",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-15T08:11:53",
"content": "This seems like a neat resource for mechanisms:http://robives.com/mechs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333649",
"author": "Max",
"timestamp": "2011-02-15T09:41:43",
"content": "I can almost picture the scene in my mind: busy suits with lots of papers in a roomy, modern office around a table;-“Ok, what’s next?” – the mid-level-suit in his forties at the end of the table asks;-“Uh, there’s this guy we found thinking about selling kits of a mechanical pac-man action figure – it looks like a rather clever thing… shall we fire off a cease and desist warning?” – his assistant chimes in helpfully-“Commercial scale? Since when is he doing it?”-“Uh, no sir, probably just a couple of units, and he didn’t sell any as of yet”-“Can’t we just look the other way and give the guy a pass, I mean he sounds like a hobbist, some fan, if his stuff is good how can this be bad for us?” – someone from the side interrupts; gets a stern look from The Man and disapproving silence from his peers-“If we start looking the other way for every time when, prey tell, should we stop? If we don’t protect our IP and brand integrity every step of the way we’d project an impression of weakness, and as I’m sure even you know, weakness in business is always fatal. Is that really what you suggest we do…?”-“No sir, of course not…” – the embarrassed suit replies-“So sic the legals on him and stop wasting my time! Next issue?”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333692",
"author": "Daid",
"timestamp": "2011-02-15T11:18:24",
"content": "While it sucks people, it’s trademark protection. As far I as understood, in the US, if you don’t protect your trademark you lose it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333773",
"author": "Quin",
"timestamp": "2011-02-15T12:50:45",
"content": "@Max that should read-“if we start looking the other way, we lose the legal protection for our trademark. Let’s politely ask him to stop; we don’t want to look like dicks, do we?”IP laws in the US are an awful maze, but that part of trademark law is pretty clear. Just ask xerox, klenex, asprin, band-aids . . .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334260",
"author": "Jonathan Guberman",
"timestamp": "2011-02-16T00:34:06",
"content": "Thanks, Hack-a-day-ers! The comments here have been the nicest and most supportive, and the traffic from here have generated more comments and suggestions on my site than all other sources of traffic combined! You guys are awesome!@Ryan: There is going to be a separate gantry for each of the 5 objects. Each will be in a slightly different plane, so that they will be able to pass freely over and under each other.Regarding Namco: I’m with Daid and Quin. Unfortunately, they don’t have a choice but to defend their IP. However, they *could* grant me a license; unfortunately, though, the internal politics of a multi-national corporation (U.S. office enforces the licenses, but Japan grants them) means that it just isn’t going to happen.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.836034
|
||
https://hackaday.com/2011/02/17/your-first-digital-to-analog-converter-build/
|
Your First Digital To Analog Converter Build
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"dac",
"r-2r",
"resistor ladder"
] |
Have you ever built a Digital to Analog Converter before? This is a circuit that can take the 0 or 5V coming off of several digital logic pins, combine them together, and spit out one analog voltage that represents that value. If you’ve never made one, here’s your chance. [Collin Cunningham] over at Make put together another
lab video about DACs
which we’ve embedded after the break.
The circuit above uses an R-2R resistor network – often called a resistor ladder – which you can learn much more about from
the reference page
that [Collin] links to. Although a DAC in an IC package is by far the most commonly found application, we do see these
R-2R networks in audio hacks
from time to time.
[youtube=http://www.youtube.com/watch?v=b-vUg7h0lpE&w=470]
| 16
| 16
|
[
{
"comment_id": "335912",
"author": "Ib",
"timestamp": "2011-02-17T18:32:38",
"content": "Very clear and simple explanation!Thanks ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335937",
"author": "1337",
"timestamp": "2011-02-17T19:00:33",
"content": "could this be done via PWM using one pin one resistor and 1 capacitor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335977",
"author": "zing",
"timestamp": "2011-02-17T19:50:11",
"content": "@1337Sure, it’ll just be sawtoothy instead of stairsteppy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336017",
"author": "zf",
"timestamp": "2011-02-17T20:39:08",
"content": "Nice & clear explanation!I recently wrote a review on the various DAC solutions, covering also the R2R. It’s also Arduino-oriented, but of course it works also with other controllers. In addition to the R2R, there’s a handful of other alternatives.If interested, you can read it at embeddednewbie.blogspot.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336031",
"author": "Nuclear Bunker",
"timestamp": "2011-02-17T21:03:03",
"content": "Damn, that sound in the background is so irritating! Great vid though :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336056",
"author": "Rich Decibels",
"timestamp": "2011-02-17T21:16:09",
"content": "I ran a workshop last week and a 10 year old came up with a DAC design I’d never thought of: a LED for each bit and an LDR to pick up the signal. With the LEDs spaced correctly you could get a reasonably accurate response (the LED closest to the LDR functions as the MSB, the furthest would be the LSB). We used his to make a little melody generator – I’ve put the schematic on my blog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336113",
"author": "CalcProgrammer1",
"timestamp": "2011-02-17T22:04:25",
"content": "I’d heard about resistor ladder DAC’s before but never tried building one until I saw this, just realized how simple it was and tried it. Instead of 8 micro pins I used a 74HC595 shift register and then shift each byte in. I used 1K and 560 ohm resistors because it’s all I had but the output is surprisingly clean and smooth. Now I just need to modify my code to produce a sine wave instead of a sawtooth wave.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336235",
"author": "Will",
"timestamp": "2011-02-18T00:35:38",
"content": "or you could use an analog adder.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336324",
"author": "Aussietech",
"timestamp": "2011-02-18T02:46:21",
"content": "“Worth noting: If you’re looking for precision, you’re best off sticking with premade DAC ICs. Resistor tolerance alone can have a massive influence on an R-2R DACs output.”Worth stressing; a valuable demonstration, but in practical terms this approach is limited to about 6 bits, however for only $5 you can get the DAC0800 which is monotonic over 8 bits and has bilateral current source/sink outputs.@Rich Decibels – give that kid a gold star and “Win!” button!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336540",
"author": "Uzimonkey",
"timestamp": "2011-02-18T09:48:00",
"content": "Hehe, I’ve done this. Easy and fun. This is one step away from a cool micro controller synthesizer. You can even examine the waveforms (assuming you’re generating audio) by recording the audio on mic in and looking at it in something like audacity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337006",
"author": "anonymus",
"timestamp": "2011-02-18T22:26:12",
"content": "I made a resistor ladder DAC to use with a gameboy emulator over a PC parallel port.It was pleasingly noisy, and really easy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337992",
"author": "Idris",
"timestamp": "2011-02-20T10:21:36",
"content": "I had fun with this a year or so ago, with an Arduino mini. I had two outputs hooked up to my oscilloscope and wrote a couple of programs to draw pictures on the CRT. It was neat getting my ghostly visage on an oscilloscope :-Dhttp://id.motd.org/pivot/entry.php?id=10",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338286",
"author": "Colin",
"timestamp": "2011-02-20T22:51:56",
"content": "I’m not quite understanding how this DAC works. It appears to be like a resistor voltage divider.0 = 0v and 256 = 5v.So the most significant bit should be 2.5v. Then 1.25v, …Each pin has 20k for r1, and another value for r2, leading to ground. For the rightmost bit in his schematic (msb), r2 is 20k. So that bit will be 0 or 2.5v. But the next bit has 30k as it’s r2 value. 20/(30+20) * 5v = 2v when it’s on. and then the next one is 40k, so that would be 1.67v. And it seems logical to me that you just add up the collective voltages, but clearly I’m misunderstanding something.Could somebody explain this to me? It would be greatly appreciated!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "388643",
"author": "Ben",
"timestamp": "2011-05-01T00:45:46",
"content": "Is the output signal generated in the format required by an amplifier? In other words can i generate a sine wave and hear it out my speakers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1261202",
"author": "MastaBlasta",
"timestamp": "2014-03-14T00:24:48",
"content": "helped me a lot, thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6753965",
"author": "Styrelsen",
"timestamp": "2024-04-27T20:38:41",
"content": "Ah, those memories from the 90th!Build a resistor ladder, connect it to your parallell port on the PC, and play Pinbal Fantasy, Nuke Nukem and Sierra games. Even listening to MOD and S3M files in Fast Tracker II. <3https://en.wikipedia.org/wiki/Covox_Speech_Thing",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.406206
|
||
https://hackaday.com/2011/02/17/electronic-tolling-system/
|
Electronic Tolling System
|
Mike Szczys
|
[
"Microcontrollers",
"Security Hacks"
] |
[
"8051",
"rfid",
"t89c51",
"toll"
] |
For us the hardest part of any project is coming up with the seminal idea. Once in a while you just need to cheat by recreating an existing product. That’s what EngineersGarage did with this
toll plaza project
. If you take a look around the various tabs at the top of that article you’ll see that they’ve used an 8051 microcontroller to bring together a character LCD, RFID reader, and a keypad. From there it’s a slew of coding to add the functionality for reading multiple tags, looking up stored value, and creating a replenishment system. Sure, it’s not really of much use in this form, but it’ll give you something to do with those shiny parts you have sitting around, and it might just lead you down a path to something more meaningful. As usual, there’s a demonstration video of this after the break.
If this doesn’t float your boat, perhaps this other
RFID access system
is more your thing.
[youtube=http://www.youtube.com/watch?v=MVDjbcBp-fs&w=470]
| 8
| 8
|
[
{
"comment_id": "335874",
"author": "Abbott",
"timestamp": "2011-02-17T17:39:11",
"content": "Interesting way to learn how to use the various pieces of gear that were laying around. A good method, too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335953",
"author": "Necromant",
"timestamp": "2011-02-17T19:17:28",
"content": "And why did I first read it as the @electronic trolling system”…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336061",
"author": "biozz",
"timestamp": "2011-02-17T21:26:29",
"content": "next … DIY TOLL BOOTHS!we will make millions!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336125",
"author": "zool",
"timestamp": "2011-02-17T22:26:32",
"content": "lol thought it was electronic trolling too",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336240",
"author": "thetwiz",
"timestamp": "2011-02-18T00:42:31",
"content": "also thought electronic trollinggot a little excited",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336377",
"author": "o",
"timestamp": "2011-02-18T04:24:36",
"content": "Pls recharge your accountProblem?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336411",
"author": "Rob",
"timestamp": "2011-02-18T05:36:07",
"content": "This could be a great way to manage employee parking in a parking garage, or a bathroom usage credit system in a small hackerspace.What would really be useful is a way to decode the EZ-Pass transponders that many people already have on their windshields.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336594",
"author": "Alan",
"timestamp": "2011-02-18T11:44:44",
"content": "There was room on the screen to write “please”, so I think we can safely assume there wasn’t room on the MCU to store the string.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.449286
|
||
https://hackaday.com/2011/02/17/etching-panel-faces-on-the-cheap/
|
Etching Panel Faces On The Cheap
|
Mike Szczys
|
[
"Laser Hacks"
] |
[
"acrylic",
"etch",
"laser",
"panel"
] |
[James] came up with a way to
make small numbers of high-contrast instrument panels
cheaply, and without too much labor. We’ll make with the bad news right away; you’re going to need a laser cutter to use this method. Traditionally, panels that look like the one above are etched onto special composite that has one color at the surface and a contrasting color beneath. [James] started with plain old acrylic, etched his labels, then filled the voids with black wax crayon. Just scribble all over the etched face to rub wax into the grooves, go through a couple of cleaning steps using
white spirit
, then bake the panel to even out and harden the wax layer. He’s got several examples of his work, including medallions that are used to label LED indicators.
| 23
| 23
|
[
{
"comment_id": "335779",
"author": "Ron",
"timestamp": "2011-02-17T16:27:44",
"content": "This could also be done at lower resolution with a small CNC mill. Or, if you don’t have that, print what you want on laser labels, then use an X-acto knife to do the etching.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335780",
"author": "nes",
"timestamp": "2011-02-17T16:27:47",
"content": "I love the lamp lenses in the following pic. I think this would be a neat way to make custom key caps too.Will the toner transfer method not work on acrylic? I’m just thinking that toner might be a bit more robust than wax crayon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335794",
"author": "Gene",
"timestamp": "2011-02-17T16:50:10",
"content": "Nice execution. But the layered plastic stuff isn’t all that expensive (since you need a laser cutter anyway…), so this kinda strikes me as a fair amount of work for minor savings. Also curious how the wax holds up over time, particularly if your fingers rub it as you turn the knob.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335798",
"author": "sneakypoo",
"timestamp": "2011-02-17T16:52:46",
"content": "I don’t quite understand where “cheap” comes into play here? Either you have to conveniently own a machine worth a few thousand bucks (with my pay, not cheap), order an etched piece from a company (not cheap) or just happen to have access to a machine that you can use for free (cheap, but really, how many have access to em?).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335801",
"author": "AO",
"timestamp": "2011-02-17T16:58:57",
"content": "Nice looking results!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335803",
"author": "emilio",
"timestamp": "2011-02-17T17:01:54",
"content": "“on the cheap”? what a joke.it looks good, but it’s hardly cheap. that’s like saying making custom flashlight bodies is cheap because aluminum doesn’t cost much – just add your own engine lathe!cheap is making a template and using a mill bit in a Dremel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335804",
"author": "fartface",
"timestamp": "2011-02-17T17:04:37",
"content": "Why not simply print backwards on shiny paper and then iron transfer the black toner to the panel?Far faster and actually cheap unlike this several thousand dollar “cheap” method.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335818",
"author": "mjrippe",
"timestamp": "2011-02-17T17:14:38",
"content": "Rather than wax, use paint and then clean off the excess with solvent, sander, scraper, buffer, etc. I’ve done this with wood and it looks quite nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335843",
"author": "Craig Sullender",
"timestamp": "2011-02-17T17:18:26",
"content": "As long as you are going to heat-fix, try using D’Uva plastic powder in the etched grooves:“…permanently fixed to any object which may be heated to 250°. It may also be removed prior to heat fixing. Completely non-toxic.”250 degrees might be too hot for the plastic panel, but the D’Uva melts before most materials. The thickness of the panel will have an affect too.Example of the different forms of D’Uva, all made of the same plastic powder:http://www.artpurveyors.com/DUVA.htmlI buy mine locally at art supply stores. Comes in black and several colors, bright and beautiful.I use it on thin acetate, 300 degrees for 30 seconds to one minute.An example is my book cover at BitePress.com.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335911",
"author": "Stone",
"timestamp": "2011-02-17T18:24:47",
"content": "I did this recently on some custom-engraved 19″ rack panels. The product I used was Markal Lacquer-Stik:http://www.markal.com/prod/82/lacquer-stik-highlighter-fill-in-paint.aspxChop the end off the crayon, smear on, rub off with a soft cloth and it sets solid in a few hours. Looks a lot more professional than wax crayon, and it won’t melt and run out if the panel gets warm! They only cost a couple of dollars.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335951",
"author": "macw",
"timestamp": "2011-02-17T19:11:14",
"content": "To everyone who says “durf this is expensive cause laser cutters are expensive”: yes they are, but they’re also popping up all over the place these days. For instance, if you’re in any way associated with a university, you might find that they have one sitting around unused 80% of the time, and you can get access to it. Or, even if you aren’t associated with the university, if you befriend the grad student who runs the lab, you’ll be able to get stuff laser-cut for the cost of a six-pack. I should know, since I’m that guy :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335973",
"author": "Tim",
"timestamp": "2011-02-17T19:43:38",
"content": "I hope it doesn’t get hot enough to melt the crayon where this will be installed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335987",
"author": "Stevie",
"timestamp": "2011-02-17T20:01:13",
"content": "Wasn’t there a post on here before about printing your design using a laser printer and then placing the printed paper onto your plastic enclosure (or face panel in this case) and ironing over it for a second to transfer the toner permanently to the plastic. Would be easier right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335995",
"author": "mowcius",
"timestamp": "2011-02-17T20:14:04",
"content": "Stevie, I think he was meaning he is the student and how is a grad student fitting into any kind of paedophilic child category?Getting back to the topic. I have done this before and filled in with black permanent marker pen.Seems to hold up pretty well.A quick wipe over the top with a damp cloth (damp with spirits or similar) will get rid of the extra pen from when you coloured in the etching.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336241",
"author": "Joe Bonasses",
"timestamp": "2011-02-18T00:44:26",
"content": "Print out your design on high quality paper, glue it to the backside of clear polycarbonate. Polycarbonate (lexan, plexiglass) can be scored and snapped, no need to cut it with a saw. Super dirt cheap and fast.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336317",
"author": "Torwag",
"timestamp": "2011-02-18T02:29:59",
"content": "Time is sometimes a funny thing:In my early years (which are not that long ago), we used a special milling machine to engrave scripts and symbols on alumina sheets. Painted the gravings with black ink (a permanent marker was ok) and polished the surface. Volia… nice black on silver long lasting panel face….Seems to be reinvented here. Only replaced the miller by a laser cutter and the alumina by plastic.No bad feelings just like to point it out",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336360",
"author": "reboots",
"timestamp": "2011-02-18T03:42:29",
"content": "@Torwag,I think this is something of a classic technique for just about any kind of permanent panel legend, from elevator panels to metal rulers. I’ve done something similar by electrolytic etching sheet aluminum in salt water, filling in the relief with a paint pen, and brushing the panel to remove excess paint. Here are some pics of the process (one of the panels shown was badly pitted due to poor toner transfer resist):http://reboots.g-cipher.net/projects/board/index.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336382",
"author": "Royalblu",
"timestamp": "2011-02-18T04:37:21",
"content": "I have two trophy shops that have laser cutters within a 15 min drive from my office. If you need something try there. Or, contact your local Epilog representative and ask them if they can recommend someplace. I get stuff done there cheap all the time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336438",
"author": "blue carbuncle",
"timestamp": "2011-02-18T06:48:03",
"content": "LMAO when the aliens dig up our remains in 2013 they’ll think an advanced race of Sharpie-wielding overlords beat me and took over my projects :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336740",
"author": "mrbippers",
"timestamp": "2011-02-18T16:18:30",
"content": "@macwI never even thought of that. Turns out here at my school we have two laser cutters, two 3d printers, and a cnc router available! Time to get serious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336759",
"author": "walt",
"timestamp": "2011-02-18T16:45:21",
"content": "sweet! let me go grab my… LASER CUTTER? danmit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337884",
"author": "Whatnot",
"timestamp": "2011-02-20T06:10:31",
"content": "Needs to ‘bake’ at 40C? Here’s an idea: put it in the xbox360 drivetray :)As for the lasercutter, since it just engraves and it’s acrylic I’m sure you can use any semi-sharp implement to manually scratch stuff too (using rulers and inverted cups and such for lines), and then it won’t be good for fancy fronts but might be usable and an idea for something artsy at least?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "960306",
"author": "Rob",
"timestamp": "2013-02-14T22:30:51",
"content": "I’ve done this and used a solid paint crayon instead of the wax. It ends up looking a lot nicer, is heat resistant and doesn’t cost a fortune. I used a the solid paint marker from Carmel:http://paintmarkersource.com/shop/en/24-solid-paint-marker-.htmlYou just need to smear it on rub it on the surface to fill the etching and use a damp cloth to remove the extra.I also manually scratched it out,…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.652424
|
||
https://hackaday.com/2011/02/17/propeller-platform-logic-analzyer/
|
Propeller Platform Logic Analzyer
|
Kevin Dady
|
[
"Tool Hacks"
] |
[
"prop LA"
] |
[Wulfden’s] new gadget is a
28 channel 3.3 volt digital logic analyzer
. Powered by a Parallax Propeller running at 100MHz (permitting a 10 nanosecond sampling rate), using all though hole parts, and open design so it is possible to whip up your own.
Data is collected and sent to a host computer running
Propalyzer
which looks to be a very nice logic analyzer front end, and sports all the needed features and a HP inspired design. The design of the board allows you to plug it on to any Propeller Platform board, and this is very handy for those who have other Propeller boards, though others will have to source a regulated 3.3 volt power supply, and serial converter.
Overall this looks to be a very handy tool to have around, whether you opt for the kit to use on your Propeller Platform boards or roll your own, the features and cost are very attractive if you need a logic analyzer.
Join us after the break for a quick introduction video by [Nick] (of Gadget Gangster)
[vimeo
http://vimeo.com/19542703
w=450]
| 20
| 20
|
[
{
"comment_id": "335764",
"author": "FightCube.com",
"timestamp": "2011-02-17T15:55:49",
"content": "Now this looks AMAZINGLY USEFUL! Thanks for sharing!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335767",
"author": "Squirrel",
"timestamp": "2011-02-17T16:00:42",
"content": "Hey, look! an ardu- … wait….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335769",
"author": "Squirrel",
"timestamp": "2011-02-17T16:03:18",
"content": "But on a side note why does everyone love through-hole parts so much? When I’m fabbing my own boards I’d much rather just etch and drill and fill a couple of vias than have to drill rows and rows of holes for all of the through-holiness.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335774",
"author": "FightCube.com",
"timestamp": "2011-02-17T16:14:32",
"content": "@Squirrel – That’s just it, when you fab for yourself you make it easy for you. When you fab for others and sell as a kit, you make it easy for them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335900",
"author": "Andy Goth",
"timestamp": "2011-02-17T18:04:47",
"content": "I thought the Propeller is only designed to go to 80MHz. If it’s stable at 100MHz, that’s great news! Other than a ~25% increase in current consumption, are there any problems associated with clocking it at 100MHz?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335948",
"author": "NatureTM",
"timestamp": "2011-02-17T19:06:28",
"content": "The market must be getting saturated with these hobby-grade logic analyzers. There’s the Saleae logic and its cheap clones, the Open Bench Logic Sniffer, the Bus Pirate (sortof), and now this. I guess that’s good since it should drive prices down. It would be nice, however, if there could be one GUI frontend. All that time spent reinventing the wheel could instead be put into adding more features.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335955",
"author": "Nick McClanahan",
"timestamp": "2011-02-17T19:19:55",
"content": "@Andy – Datasheet specs 80Mhz, but it will run at 100Mhz just by swapping the crystal. You also The PPLA comes with a custom cut 6.25Mhz xtal so you get a nice even 100Mhz.Power consumption goes up a little. Consumption here is probably 30mA instead of 20mA.@Nature – I normally agree, but the gui here is so simple, it took me just a few minutes to figure out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335972",
"author": "NsN",
"timestamp": "2011-02-17T19:42:28",
"content": "One thing i couldn’t find out from the website or video was the maximum number of samples per capture.I somehow doubt, that this captures 30 channels at 10ns continuosly and transfers them directly to the computer. Maybe that is where the multiple cores come in. But any logic analyser i looked at so far always included a maximum sample size in its specs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335990",
"author": "ColinB",
"timestamp": "2011-02-17T20:05:09",
"content": "I am very skeptical about the performance of this logic analyzer attaining the stated 10 ns sample period = 100 MHz sample rate. First of all, is it really possible to have a constant 100 MHz “read GPIO, store to memory” loop? Does it need to handle a ring buffer structure (checking limits, incrementing a pointer, etc.)? How much sample memory is available on the Propeller MCU? What is the maximum data transfer rate to the host PC? (It appears to be using a UART so I can’t imagine it is higher than 1 Mbit/s transfer rate, and more likely 100 kbit/s to 200 kbit/s.)Even with multiple cores, I don’t see how this device could come anywhere close to the advertised performance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336028",
"author": "David Carrier",
"timestamp": "2011-02-17T20:59:06",
"content": "Andy — See page 32 of the data sheet athttp://www.parallax.com/Portals/0/Downloads/docs/prod/prop/PropellerDatasheet-v1.2.pdf, higher frequencies don’t work at extremely high temperatures, especially at low voltages. Over a commercial temperature range, 100 MHz still works well.NsN and ColinB — Each core, or cog has 512 32-bit registers for instructions and data. If you fill most of the core with instructions that overwrite themselves with samples, you can take over 400 32-bit samples per core, and sample with multiple cores for a few thousand samples. With some well written assembly language, you could store over 3,500 samples in the cogs alone. (You wouldn’t have any resources left to trigger, though.) If you take smaller samples, say 8 bits, some specialised assembly coding could fill the 32 Kb x 8 RAM with samples.— David CarrierParallax Inc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336106",
"author": "Mikey",
"timestamp": "2011-02-17T21:54:23",
"content": "The 10ns sample rate cannot be accurate. The propeller does not get 1 instruction per tick. It gets 1/4. At 80 MHz it performs ~20 MIPs, so at 100 MHz it can only AT MOST perform 25 MIPs.It should only be able to get 40ns tops.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336133",
"author": "ColinB",
"timestamp": "2011-02-17T22:36:55",
"content": "@David Carrier:Thanks for the insight. It still sounds incredibly difficult to get everything right and to get 1 sample per machine cycle. I guess if you only need a few hundred to a few thousand samples, it might be usable. However, if you had a bigger sample memory or a fatter pipe to the host PC, or even just compression of samples (e.g., to allow easy capture of a communication consisting of rapid digital pulses, then a long pause of 1 ms, then more digital pulses), then , it seems like it would be much easier to capture the signals in which one might be interested.What about Mikey’s comment that one instruction takes four clock cycles? How then can a 100 MHz sample rate be achieved?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336222",
"author": "David Carrier",
"timestamp": "2011-02-18T00:13:57",
"content": "Mikey and ColinB,The Propeller uses a Von Nuemann architecture, so the code is executing out of the same memory space as the data. It also caches the code into a cog before it is executed, so it doesn’t matter if you overwrite the code as it is being executed. If you generate several hundred instructions, where each instruction copies the input register over its own location in cog RAM, and follow it with a small loop to copy that data into the shared RAM, i.e. hub RAM, you will have a program that stores several hundred samples then loads them into hub RAM.As Mikey mentioned, each instruction requires four clock cycles; this doesn’t pose a problem though, because the each cog can be at different stage in its pipeline. There are instructions that allow you to synchronise the cogs in such a way that each one samples the input one clock cycle after the previous cog.If you have four cogs sampling, each cog will sample one clock cycle later than the previous cog, and they can each gather over 450 samples, for a total of over 1,800 samples. The samples would be interleaved between the cogs, but post processing is cheap, especially when you are sending the data to a PC. If you set the remaining four cogs to start sampling immediately after the first four stopped, you could gather another 1,800+ samples, contiguous with the first, for a total of over 3,600.There is only exactly enough bandwidth to write 32 bits every clock cycle to the 32k x 8 hub ram, which doesn’t leave enough overhead for the cogs to know when to switch between sampling and writing. At a lower sample width, such as 8 or 16 and possibly 24 bits per sample, you can have the cogs take turns sampling data and copying it hub memory. This way, you could fill the hub RAM with 32,768 8-bit samples, 16,384 16-bit samples, or possibly 10,922 24-bit samples.For streaming, sending data to the PC over an asynchronous serial connection will be the bottleneck; it is difficult to get over three megabaud. If you lowered the sample rate, you could add run-length encoding to stream data to the computer.— David CarrierParallax Inc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336225",
"author": "Nick McClanahan",
"timestamp": "2011-02-18T00:19:03",
"content": "@Colin & Mikey – The Propeller is multicore, each core is 25MIPS, but total horespower is 200MIPS. The cores work together to sample.Propalyzer is frame-based, although you can use other firmware (like viewport) for continuous sampling to the PC. Viewport does 2mbits / second.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336247",
"author": "Mikey",
"timestamp": "2011-02-18T00:47:23",
"content": "@Nick & @David — NEAT.Though, since 8 cogs — why does it need to be overlocked in the first place? — it seems to me that you could just use 5 cogs at 80MHz and achieve the same effect (or 7 of the 8 to achieve 140 MIPs…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336299",
"author": "David Carrier",
"timestamp": "2011-02-18T02:10:16",
"content": "Mikey,The cogs only sample when a system clock edge occurs. (I do not know off hand if it is a falling or rising edge.) So, at 80 MHz, the system clock period is 12.5ns, which is your limiting factor. If you had five cogs sampling with an 80 MHz clock, you would be sampling 100 Million times per seconds, but two of the cogs would have to sample at the same time.We do have a work-around for outputting data faster than the system clock; there is a 32-bit shift register in each cog that can buffer four 8-bit or eight 4-bit samples and output them using them using a clock generated by a PLL. It is specified to run at 128 MHz over an extended temperature range, but we have a demo that outputs a 1600×1200 VGA signal, using 2-bits per sub-pixel plus H and V sync, for a total of an 8-bit parallel output, that is clocked at 160 MHz, double the system clock. The Propeller doesn’t have enough memory to store that big of an image, but it can draw fonts or repeating tiles, similar to the NES’s backgrounds. Seehttp://forums.parallax.com/showthread.php?89980for the demo.— David CarrierParallax Inc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336406",
"author": "cluso99",
"timestamp": "2011-02-18T05:26:12",
"content": "We have no problems overclocking the prop providing proper decoupling is performed. I have pcbs that run at 104MHz. 108MHz works too, but I do not guarantee it.5 cogs at 80MHz will not give you any better as the sampling is tied to the basic clock rate. Effectively, to sample at 10nS (100MHz) we interleave 4 cogs, each sampling at a quarter of the time.I am not familiar with what jazzed has done with his Propalyser code, so here is what I did in my sampler code…4 cogs can sample up to about 1700 sets. I use 1 cog to trigger. Unfortunately there is a short trigger delay of a few clocks (cannot recall now, too long ago).However, I am fairly sure that could be overcome and in fact we could be presampling while waiting for a trigger, all by propeller software.Another nice feature of the prop is that it could output this data to a TV or VGA quite simply (a few resistors). There is an inbuilt font that can generate timing diagrams too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336420",
"author": "Oldbitcollector",
"timestamp": "2011-02-18T06:02:12",
"content": "I’ve been able to pull 114.5Mhz from a 14.318 xtal pulled from an old VGA card. The Propeller will run at this speed, but I’m sure it isn’t recommended. :) 100Mhz speeds are stable and work well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336802",
"author": "PPLA-Designer",
"timestamp": "2011-02-18T17:32:59",
"content": "Thanks to hackaday for posting this wonderful article.It’s interesting to see so many interesting perceptions about Propeller and the examples of fantastic support that Parallax always gives (thanks David Carrier).PPLA was designed specifically for Propeller Platform to eliminate the need for a cable harness (a USB capable stand-alone version that allows using the cheap 9-pin grabber cables is ready to go anytime). I also use AVR, other micros and CPUs with many languages; it is wonderful to have so many devices available to fit the needs of a designer – every chip has it’s strengths and weaknesses.Propalyzer is now 2 years old and can connect to any Propeller running the firmware. The original Propalyzer hardware concept is shown here:http://www.brouhaha.com/~sdenson/PropalyzerIf someone points me to that GUI mentioned, I’ll try to make PPLA inter-operate with it. When I designed Propalyzer I didn’t really care to look at other offerings since I have a vision of what I want and find useful. Enhancements will come for capture to trigger and larger buffer sizes.I do not ever want Propalyzer to perform the function of an oscilloscope because I want it to do one thing for focus. If you want o-scope software, ViewPort will do that (and other things – too many other things IMHO).Propeller is so flexible it can do practically anything; if you say it can’t be done, someone may prove you wrong. Of course, it’s just a micro-controller so there are real limits.Join us to witness the possibilities in the thriving, vibrant, and super supportive Propeller community athttp://forums.parallax.com/forum.phpThanks.–Steve",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337025",
"author": "cluso99",
"timestamp": "2011-02-18T23:12:18",
"content": "Just to add a bit about speed. One of the prop guys has been running for months (now probably more than a year) at 120MHz. I found it seemed to top out at 14.318MHz (~112MHz).",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.513159
|
||
https://hackaday.com/2011/02/17/diy-fizzy-fruit/
|
DIY Fizzy Fruit
|
Mike Nathan
|
[
"Misc Hacks"
] |
[
"carbonation",
"co2"
] |
[Rich] over at Evil Mad Scientist Labs took it upon himself to make eating fruit a little more enjoyable for his kids by infusing it with CO2 using
his CO2inator
. Observing the same principles used in making soft drinks and force-carbed beer, he decided to build a CO2 pressure chamber for use in his kitchen. He gathered a handful of easy to find components to construct his rig, including a household water filter housing and a CO2 cylinder from a paintball gun. He has some helpful hints for those who are not familiar with the process, noting that refrigerated fruit absorbs the gas more quickly than warm, and that considering the water content of the fruit is important when selecting what to carbonate.
Once [Rich] had everything safely connected and checked for leaks, in went the fruit. After about half an hour to an hour, the fruit was carbonated, much to the delight of his children. This looks like a quick and fun project for adults and kids alike, that can easily fit into a busy weekend schedule.
[via Neatorama]
| 37
| 36
|
[
{
"comment_id": "335731",
"author": "Sterling",
"timestamp": "2011-02-17T14:10:53",
"content": "Awesome. I can’t wait to get one of these built. Snack time is gonna rock.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335745",
"author": "RBR",
"timestamp": "2011-02-17T15:02:58",
"content": "“CO2 cylinder from a paintball gun” I dunno the harms in that but they do state on them “Not For Human Consumption”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335753",
"author": "JTaylor",
"timestamp": "2011-02-17T15:19:23",
"content": "The main issue with CO2 from a paintball tank would be any residual oils, which are not filtered out. The not for consumption stems from that and idiots who will huff it to get high.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335759",
"author": "fartface",
"timestamp": "2011-02-17T15:30:25",
"content": "Lots of newbie things here.Cold holds more CO2, Duh if he knew anything at all about carbonation he would have known that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335761",
"author": "Ben",
"timestamp": "2011-02-17T15:44:46",
"content": "@fartface — I’ve got a lot more respect for someone who goes out and tries something and demonstrates an ability to learn from experimentation, than some blog comments ass who heckles someone for learning.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335765",
"author": "dmcbeing",
"timestamp": "2011-02-17T15:59:45",
"content": "Hmm didnt know you could do that with a fruit….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335776",
"author": "John",
"timestamp": "2011-02-17T16:22:46",
"content": "At a guess, they don’t filter the CO2 very well, and you’re going to end up with oil, monoxides, sulphides, etc. Compressors for SCBA tanks have a truly ridiculous number of filters on them to prevent contamination.Of course, this is more like .05g of carbonation/contaminants in a 30g piece of fruit, once a month -vs 20Kg of air over the course of half an hour. Probably not gonna kill you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335799",
"author": "Rob",
"timestamp": "2011-02-17T16:55:08",
"content": "You can do something similar with a strong bottle and dry ice. Chuck fruit in, put some dry ice in, close it off. Stick in fridge (as long as you didn’t use too much dry ice) overnight and you have carbonated fruit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335800",
"author": "John",
"timestamp": "2011-02-17T16:55:26",
"content": "Just re-read the article and realized that the regulator is far more terrifying than the container. He’s talking about using a gas regulator that you buy from a garage sale. Which, for all you know, has been dropped in a bucket of motor oil. Yum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335872",
"author": "setlahs",
"timestamp": "2011-02-17T17:36:39",
"content": "I like this. I tried making a carbonator like this using some 4″ pvc pipe, until it exploded at 80 psi and sent shards of PVC everywhere. This sounds like a much safer solution, and simpler too using a water filter housing! I never would have guessed.If you’re worried about contaminants, add a couple filters. This hack was made to be simple and effective.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335877",
"author": "Chavo",
"timestamp": "2011-02-17T17:40:42",
"content": "I second Rob’s comment. This seems like a lot of overengineering for what can be done with similar results by tossing some fruit into a cooler with dry ice for a few hours.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335915",
"author": "nanomonkey",
"timestamp": "2011-02-17T18:37:22",
"content": "I do this all the time for parties. You can use an isowhipper or in my case a cornelius keg (5 gal keg for soda or beer brewing).Most fruit works out well…the only exception I’ve found is strawberries which turn to mush. Grapes cut in half and apple chunks are awesome. The other bonus is that it halts oxidation, so the colors stay longer.I would suggest using beer brewing equipment as it’s meant for human consumption.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335943",
"author": "FDP",
"timestamp": "2011-02-17T19:03:07",
"content": "The idea is great. For the supremely lazy it looks like there is even an off-the-shelf solution:http://www.youtube.com/watch?v=Rh12E0KFXKY&feature=fvsr",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335958",
"author": "macw",
"timestamp": "2011-02-17T19:21:35",
"content": "@chavo — you can’t just throw the fruit in a cooler with dry ice; it has to be under pressure. The “fizziness” is from the CO2 dissolved in the fruit at high pressure coming out of solution when the pressure is reduced. Hence why Rob says use “a strong bottle”. That’s a terrible idea, by the way, because you can’t really control the pressure inside the sealed bottle like you can here with the regulator — it could work perfectly nine times in a row and then the tenth time you put in ten grams too much dry ice and it blows the door off your fridge.@setlahs — never use PVC for high pneumatic pressures. As you’ve discovered, it shatters like a hand grenade when it breaks. ABS pipe is a lot safer, because when it fails it just splits and tears open. No shrapnel.@jtaylor — yeah, they’d have to be pretty dumb to huff CO2 in an attempt to get high. I think all you’d get out of that would be dead :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335976",
"author": "knuckles904",
"timestamp": "2011-02-17T19:49:20",
"content": "kudos for the phineas and ferb references",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335978",
"author": "andar_b",
"timestamp": "2011-02-17T19:50:54",
"content": "@macwNot really, you get the lightheaded feeling of oxygen deprivation. There are kids that purposely strangle themselves to get that feeling, and yes, you can get dead pretty easy from what I’ve heard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335985",
"author": "Spork",
"timestamp": "2011-02-17T19:58:46",
"content": "@Those who think it’s a safety hazard to use dry ice, use a “strong bottle” type setup with a regulator to let built up pressure OUT of your bottle. If you’ve ever seen a pressure cooker they have ‘whistle valves’ and ‘rocker valves’ that prevent over pressurization.Dry ice is the way to go to prevent contamination and to do it on the cheap.That said, not sure if I’d enjoy carbonated fruit.Just my $0.02",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336007",
"author": "Jack Dedert",
"timestamp": "2011-02-17T20:31:16",
"content": "I see a lot of problems with readers’ alternatives; the bottle idea most of all. We used to make ‘dry ice bombs’ and let me tell you, they can make powerful explosions. Putting one in your fridge is a recipe for disaster (and probably not necessary. Dry ice is cold enough on its own–see below.). One reader’s comment about pressure cookers is particularly uniformed. Pressure cookers are regulated at around 15psi…not nearly high enough for the desired effect.That said, the pressure vessel (filter housing)in the article ‘could’ be used, along w/dry ice, to carbonate fruit IF a suitable pressure relief valve can be sourced. Those are available for a number of industrial and domestic applications. (The TPM valve on water heaters comes to mind–probably too high, and not adjustable–others may be familiar with alternative suitable devices…perhaps air-compressor relief valve?)It would be simple to toss some dry ice in with some fruit, set the relief valve to ‘pop off’ at 60psi, set the device aside until the indicated pressure fell below that point, relieve the remaining pressure; and voila’!However, the temperatures involved may have a deleterious on the fruit…?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336014",
"author": "Jack Dedert",
"timestamp": "2011-02-17T20:36:30",
"content": "Reading my own comment, the only concern I have would be the possible effect of extreme temperature differential on the plastic of the filter housing. However the method does address readers’ questions about oil contamination…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336027",
"author": "Eikka",
"timestamp": "2011-02-17T20:59:01",
"content": "Don’t use paintball gas!They sometimes mix in propane to lower the freezing point of CO2 so it won’t turn to dry ice inside the tank when the gun is fired repeatedly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336057",
"author": "Spork",
"timestamp": "2011-02-17T21:18:53",
"content": "@Jack DedertI’m sorry you are not bright enough to understand my supposedly ‘misinformed’ post. You simply restated it in your post.So lets see,1)Call someone an idiot.2)Rip off their idea and claim it as your own.Way to go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336065",
"author": "yetihehe",
"timestamp": "2011-02-17T21:34:55",
"content": "@eikka – doesn’t CO2 have lower boiling point (-78*C) than propane(-42*C)? Propane would turn to liquid faster than CO2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336107",
"author": "Matt",
"timestamp": "2011-02-17T21:56:02",
"content": "A high concentration of CO2 in the presence of water (such as fruit) will form carbonic acid, which gives it a slightly sour taste.It will also promptly start dissolving the enamel on your children’s teeth. Don’t do this regularly!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336242",
"author": "Jack Dedert",
"timestamp": "2011-02-18T00:44:48",
"content": "@SporkSorry you took such exception to my post. However, nowhere did I call you an idiot or anything else. Misinformed is perhaps a negative term, and perhaps it was ill-stated. There is some value in your ideas, and yes mine are similar, but much more fleshed-out (and already in mind before I read your post), with no mention of ‘flapper valves’ or anything else related to pressure cookers except the idea of a ‘pressure vessel’.I hope I didn’t ruin your day….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336258",
"author": "Spork",
"timestamp": "2011-02-18T01:06:13",
"content": "@Jack DedertI’m so impressed that you were able to come up with the same idea and conveniently post it an hour after me! See, sarcasm, I can do it too.Don’t get me wrong, it is not that I took exception to your post. It is that you are an arrogant asshole who has no regard for other people’s ideas.You could come off as intelligent if you left your pretentious attitude in your undergrad business class and your creatively misconstrued posts in your creative writing class.Today is actually quite wonderful, so do not waste your time worrying about my well being. Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336264",
"author": "Jack Dedert",
"timestamp": "2011-02-18T01:18:44",
"content": "Well, Spork…in that case, I’ll leave you to the pissing match you’re having with yourself on this wonderful day. I hope tomorrow is just as nice….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336283",
"author": "Jeditalian",
"timestamp": "2011-02-18T01:56:22",
"content": "i would rather my fruit be n2o-inated because co2 isn’t the best tasting substance in the world. taste kinda reminds me of automotive exhaust or something. i wonder if that’s where they get it before it is pressurized into little canisters. now.. if you can co2-pump the fruit while it’s still on the plant, that would make for an interesting experiment. of course the result would probably just be embolism.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336286",
"author": "Jeditalian",
"timestamp": "2011-02-18T02:00:32",
"content": "embolus.lol@setlahs “i tried making a carbonator but made a pipe-bomb instead..”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336380",
"author": "Cbob",
"timestamp": "2011-02-18T04:36:05",
"content": "Guess I’m the only one who misread that as “fuzzy fruit” at 1st glance….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "336452",
"author": "Ron Proctor",
"timestamp": "2011-02-18T07:36:05",
"content": "You are not alone, Cbob. I was hoping for a fuzzy peach-grape hybrid…",
"parent_id": "336380",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "336457",
"author": "Frogz",
"timestamp": "2011-02-18T07:42:47",
"content": "….popular science promised me fizzy fruit available in major retailers everywhere…they lied to me!!!!!http://www.thinkgeek.com/geektoys/science/c908/can anyone reverse engineer this? same principal but alot safer pressurescarbonated blueberry juice anyone?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336584",
"author": "Grovenstien",
"timestamp": "2011-02-18T11:27:26",
"content": "SODA STREAM!!! I tried to soda stream the following:Yogurt = bad idea, foamyMilk = very foamy endless foam run away!Coffee = very strangeTea= even weirderI thought carbonated food stuffs led to an increased chance of bowl cancer? I’m up for trying an apple!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336734",
"author": "lwatcdr",
"timestamp": "2011-02-18T16:02:19",
"content": "Just an idea but why not dry ice in a pressure cooker? or would the pressure be too low? I mean they are already setup to vent the pressure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337703",
"author": "Eikka",
"timestamp": "2011-02-19T22:01:01",
"content": "@yetiheheSometimes combinations can have a lower boiling point. If you add diethyl ether to dry ice, it will lower the sublimation point to about -100 C even though the boiling point of ether is 34.6 C. It is also added to paintball/airsoft gas bottles to prevent it from solidifying.A very common mixture called Green Gas is simply propane with silicone oil mixed in. It apparently produces much higher pressures than CO2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337849",
"author": "-HMav",
"timestamp": "2011-02-20T04:44:56",
"content": "Why not do this using 9 gram food grade cartridges and the paintball adapters for them? Then no worries about oil or strange gas mixes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "383061",
"author": "casey",
"timestamp": "2011-04-19T23:46:38",
"content": "That mysteriously depressed boiling point is caused by the Eutectic, a gremlin-like creature who uses a mortar and pestle.…seriously, read further…http://en.wikipedia.org/wiki/Eutectichttp://en.wikipedia.org/wiki/St._Louis_College_of_Pharmacy#Mascot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "956281",
"author": "meh",
"timestamp": "2013-02-08T04:50:47",
"content": "I tried breaking up the dry ice into small pieces and kept the fruit suspended over it in a metal colander, but ended up with no carbonation – just chilled fruit. I even tried one batch with the fruit directly on the ice, but they just froze solid. Is there something I’m missing?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.909086
|
||
https://hackaday.com/2011/02/17/classicals-creates-hits-on-hardwares-greatest-flops/
|
Classical’s Greatest Hits On Hardware’s Greatest Flops
|
Mike Szczys
|
[
"classic hacks",
"Musical Hacks"
] |
[
"18f14k50",
"bach",
"floppy",
"midi",
"pic",
"stepper motor",
"usb"
] |
We get a lot of tips about old hardware playing recognizable tunes. But once in a while one of these projects goes above and beyond the others and
this is a shining example of great hardware music
. [FunToTheHead] put together a music video (embedded after the break) that shows his custom MIDI device playing Bach’s Toccata in d minor. He left some comments that clue us into the way he did it. Most obviously, he’s using the stepper motors from four floppy drives to create precisely pitched sounds. Internally, a PIC 18F14K50 acts as a MIDI-over-USB device, taking commands for all 128 MIDI notes as well as the pitch bends associated with them. The first four channels are played directly on each drive and the other twelve are triaged among the hardware by the microprocessor. But for the results heard in the video you’ll need to code your MIDI files by hand.
Bonus points to the video editor for the Phantom’s floppy-laden appearance in the video… it’s good to laugh!
[youtube=http://www.youtube.com/watch?v=dmoDLyiQYKw&w=470]
[Thanks
| 19
| 19
|
[
{
"comment_id": "335701",
"author": "turn.self.off",
"timestamp": "2011-02-17T13:24:27",
"content": "I will forever associate that melody with “the story of man”.Btw, love the sound of loading a 3.5″…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335703",
"author": "dave",
"timestamp": "2011-02-17T13:25:38",
"content": "all hardware should be required to play classical music",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335713",
"author": "cc",
"timestamp": "2011-02-17T13:44:53",
"content": "The sond good, good work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335715",
"author": "woutervddn",
"timestamp": "2011-02-17T13:49:18",
"content": "Saw this one on geeksaresexy.net last week. Love it though.. :p I remember stressing about it being toccata and fugue in D minor by back and not Phantom of the Opera. But apparently it’s in the comment box now.anyways, who has some old drives lying around to donate? :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335721",
"author": "svofski",
"timestamp": "2011-02-17T13:51:23",
"content": "I’ll be Bach! >B|",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335732",
"author": "Jeditalian",
"timestamp": "2011-02-17T14:11:27",
"content": "man, computers used to be loud. i can’t do this without floppy disks, can i? i always either unplug or remove a floppy drive when i see it, or disable in BIOS. i don’t see why we can’t use floppy shaped flash memory.. even if it’s just a floppy disk with a microsd slot. the other way would be way too breakable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335735",
"author": "AshleyK",
"timestamp": "2011-02-17T14:19:40",
"content": "+1 for the guy in the video and the floppy disk mask :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335752",
"author": "hubert",
"timestamp": "2011-02-17T15:17:24",
"content": "Hi,i like those hacks of old hardware, good job.could you please show the sourcecode, or some links where i could learn about midi over usb???",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335762",
"author": "r_d",
"timestamp": "2011-02-17T15:44:48",
"content": "Is the title totally nonsensical, or is there a pun I’m not getting?“creates” -> “greatest”?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335766",
"author": "APerson",
"timestamp": "2011-02-17T16:00:25",
"content": "Now that’s what I call a Bach up solution!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335792",
"author": "Kyle",
"timestamp": "2011-02-17T16:46:08",
"content": "r_d: ah, that’s what it’s supposed to be. szczys doesn’t speak very good english, you see.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335885",
"author": "Sigg3",
"timestamp": "2011-02-17T17:49:23",
"content": "@Kyle: That’s SCSI to you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335896",
"author": "NatureTM",
"timestamp": "2011-02-17T17:58:47",
"content": "Nice!I can’t decide whether to (A)bort,(R)etry, or(C)ontinue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335986",
"author": "Jac Goudsmit",
"timestamp": "2011-02-17T19:59:13",
"content": "Awesome! Would be even more perfect if the front panel would say “d-” (D Minor, get it) instead of “d0”.LOL at the phantom and the error message :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336026",
"author": "Remko",
"timestamp": "2011-02-17T20:58:29",
"content": "would you be able to take a midi source and use this as a playback device, hack a keyboard to this and compose some music :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336374",
"author": "mavis",
"timestamp": "2011-02-18T04:10:34",
"content": "@APerson: +1 for good punnage",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336729",
"author": "Daley",
"timestamp": "2011-02-18T15:41:54",
"content": "The best part is at the very end – “Fugue not found. Please insert disks 5-8”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338832",
"author": "Malikaii",
"timestamp": "2011-02-21T17:59:42",
"content": "Very impressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "468968",
"author": "hackersmith",
"timestamp": "2011-10-01T15:48:32",
"content": "You can get the full schematic over at his website now:http://georgewhiteside.net/projects/diskette-organ/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.711949
|
||
https://hackaday.com/2011/02/16/punch-tape-musical-synth/
|
Punch Tape Musical Synth
|
Mike Nathan
|
[
"classic hacks",
"Musical Hacks"
] |
[
"555 timer",
"contest",
"synth"
] |
[Jeri Ellsworth] sent over a 555 design contest entry that struck her as particularly interesting. The
Synthanola
is a three-channel music synthesizer that accepts input from an old Heathkit paper tape reader. While this hack might seem overly retro, it’s actually an extremely appropriate use of technology, as the Heathkit H-10 and the 555 timer were both popular tech in the 70’s. This retro-focused synth uses fourteen 555 timers, twelve of which are dedicated to synthesizing audio. If this entry does not win the contest, it certainly must be a strong contender for most 555 timers used.
[Thrashbarg] gives a detailed explanation of the logic used to drive the music playback from the punch tape, as well as full circuit diagrams for his entry. So far he has encoded MP3s of Bach’s Invention and Fugue in D Minor to tape, with hopefully more to come. In order to truly appreciate his efforts, the Synthanola should be seen as well as heard. Stick around for a pair of videos of the synth in action.
If you’re interested in seeing more 555 contest entries, be sure to check out some of our
previously
featured
projects
.
[youtube=http://www.youtube.com/watch?v=FyiECb2k7d8&w=470]
[youtube=http://www.youtube.com/watch?v=eFlL5bFzc_A&w=470]
| 26
| 26
|
[
{
"comment_id": "335201",
"author": "zool",
"timestamp": "2011-02-16T23:36:51",
"content": ":)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335202",
"author": "Orinoko",
"timestamp": "2011-02-16T23:38:53",
"content": "I’ve actually saw this synth set up to Thrashbargs’ 486 last week and I must say its quite impressive. The video’s don’t do it justice!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335211",
"author": "Dino",
"timestamp": "2011-02-16T23:51:13",
"content": "That thing is VERY cool! Well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335231",
"author": "joe",
"timestamp": "2011-02-17T00:25:57",
"content": "this is awesome! Very well done. It sounds like some of the notes are a bit out of tune, however.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335242",
"author": "sm10sm20",
"timestamp": "2011-02-17T00:37:50",
"content": "Best project I have seen for quite some time! Love the punch card system, always wanted to do a project with one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335268",
"author": "svofski",
"timestamp": "2011-02-17T01:14:57",
"content": "=)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335269",
"author": "James",
"timestamp": "2011-02-17T01:15:57",
"content": "That is not exactly a “well-tempered” clavier but the project is awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335299",
"author": "rsdio",
"timestamp": "2011-02-17T01:57:06",
"content": "Encoded MP3s? Don’t you mean MIDI files?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335307",
"author": "Fallen",
"timestamp": "2011-02-17T02:08:24",
"content": ":( My 555 synth just got owned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335318",
"author": "steven-x",
"timestamp": "2011-02-17T02:23:29",
"content": "Very cool! I was in the USAF and used a punch tape system to reprogram aircraft processors in the 80’s, and this brought back memories… Plus I like Heathkits & 555’s, so it wins all around!Maybe someone will get inspired to set the WAYBAC machine to the 60’s and make a punch card version ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335346",
"author": "NatureTM",
"timestamp": "2011-02-17T03:37:05",
"content": "That’s pretty awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335398",
"author": "Frogz",
"timestamp": "2011-02-17T04:33:45",
"content": "what happens when jeri wins her own creation???i was making a 555 strobe light/stroboscope but…guess this kinda tops it by far",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335407",
"author": "Jeri Ellsworth",
"timestamp": "2011-02-17T04:48:52",
"content": "Don’t worry. There are a lot of prizes and categories. The judges will be also be considering the amount of work done by non-555 components.Chris and I are not entering the contest.-Jer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335440",
"author": "1337",
"timestamp": "2011-02-17T04:59:29",
"content": "Fine, its a god damn 555 pianola. Sucks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335490",
"author": "echodelta",
"timestamp": "2011-02-17T06:36:44",
"content": "Paper tape yeah! Now I am brainstorming how to do this pneumatically for a street organ type of thing, sorry no dwino or even electricity used. Lookup logic in a integrated vacuum matrix of leather pouches and valves, sounds doable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335607",
"author": "dirtyoldman",
"timestamp": "2011-02-17T10:54:52",
"content": "that pizza pot pie looks yummy!awesome hack!i imagine using punch cards would require manual swopping of cards in order to play longer pieces.(unless you have two card readers i guess)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335609",
"author": "strider_mt2k",
"timestamp": "2011-02-17T10:59:56",
"content": "I could weep.I would travel to see this.Thank you for sharing this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335655",
"author": "PhilKll",
"timestamp": "2011-02-17T12:37:51",
"content": "My 555 music maker has something to aspire to become now. Love this thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335754",
"author": "slipp",
"timestamp": "2011-02-17T15:21:28",
"content": "that is great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335814",
"author": "amodedoma",
"timestamp": "2011-02-17T17:11:55",
"content": "Punch tape!? I wrote my first program on TTY and saved it on punch tape, serious nostalgia. Amazing project. Bach is the natural choice, I got this flash back to Moogs, and ‘Hooked on Bach’.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336001",
"author": "Daniel N",
"timestamp": "2011-02-17T20:24:43",
"content": "Shoot, my entry has exactly 14 555s. Now I need to add more features to win the most 555s category cause my project probably won’t work that well and definitely won’t look that clean.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336066",
"author": "zeropointmodule",
"timestamp": "2011-02-17T21:35:18",
"content": "555 induction heater :-)its possible, I came up with a circuit which uses a single 555 running right at its thermal limit.In principle it should be able to heat small screws and suchlike to red heat…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336396",
"author": "Ren",
"timestamp": "2011-02-18T05:14:28",
"content": "Punch tape!? We wrote our BASIC on clay tablets with sharpened reeds. If you weren’t careful in drying them in the sun or dropped your deck carrying your program to the high priests in the computer temple, you’d have to start over. And if your program didn’t compile you had to go to the back of the queue after debugging it. If you didn’t submit a working program to the high priest before the end of the lunar cycle your barley ration was cut in half!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336440",
"author": "blue carbuncle",
"timestamp": "2011-02-18T06:50:40",
"content": "I think I should have emailed sailormouth and casper. LAME.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336448",
"author": "dan fruzzetti",
"timestamp": "2011-02-18T07:26:28",
"content": "here’s the funny part: she had to also arrange the piece for two punch tape channels… that alone was probably not the simplest test, even with the two-part inventions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "341291",
"author": "TJ",
"timestamp": "2011-02-25T01:07:14",
"content": "Musicians cry when I show them this.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.776485
|
||
https://hackaday.com/2011/02/14/what-development-board-to-use-part-two/
|
What Development Board To Use? (Part Two)
|
James Munns
|
[
"Parts"
] |
[
"arduino",
"arm",
"board",
"cpld",
"dev",
"development",
"fpga",
"Leaf",
"linux",
"maple",
"mbed",
"microchip",
"nxp",
"parallax",
"pic",
"propeller",
"Renesas",
"router",
"RXN",
"Teensy"
] |
We asked for responses to our last Development Board post, and you all followed through. We got comments, forum posts, and emails filled with your opinions. Like
last time
, there is no way we could cover every board, so here are a few more that seemed to be popular crowd choices. Feel free to keep sending us your favorite boards, we may end up featuring them at a later date!
The Popular:
Parallax Propeller:
We heard the loudest cries from the Parallax fans out there. The Propeller is a unique chip, in that it contains 8 cores called cogs which each take turns executing separate code. This design allows for disregarding of interrupt style programming in favor of assigning each core a specific task. There are a number of boards available, including
Gadget Gangster’s platform
as well as boards from
Parallax
. Thinking in terms of 8 cores rather than one may present a learning curve to some embedded programmers, though there are a number of code examples to pull from online to get beginners on their feet.
Atmel’s AT90USB and AT32U4 based boards:
Atmel’s AT90USB and ATmega32U4 chips are common on low part count boards like the
Teensy/Teensy++
because of their built-in hardware USB support, which means no FTDI or equivalent chip required. These development boards tend to be low-cost, easy to implement on a breadboard, and in cases such as the Teensy, are Arduino IDE
compatible
. The chips these boards are based on are also an excellent place for those trying their hand out at microcontroller circuit design for the first time because of their simplicity and low hardware requirements.
Microchip’s PIC line:
Somehow, we managed to leave the entire Microchip crowd in the cold last time. A popular set of microcontrollers with a similar market segment to Atmel’s chips, these chips vary from the low-end and low-cost 8-bit series to the higher end 16 and 32-bit models. We received a
good
number
of
development
board
recommendations
, all ranging in price, features, and ease of use. We’ll rely on comments and forum posts to help convince you what specific model to try.
[edit: Added the PicKit3 as per popular request]
The Powerful:
mbed:
Possibly one of the most popular hobby development boards for ARM’s Cortex-M3 chip, the mbed features a similar footprint to the Teensy, but with a huge jump forward in power. The mbed includes hardware for a number of peripherals, including support for ethernet with the addition of an RJ-45 port. The major difference between the mbed and other similar boards is the entirely web-based IDE. We have
previously reviewed
the
mbed
, so for more details be sure to check it out.
Renesas’ RX62N RDK:
Whenever a company
gives away
development boards for free, the community often jumps on the offer. Rather than the normal free barebones boards though, the RDK has a good number of on board peripherals, including an Ethernet port as well as a 3 axis accelerometer. Unfortunately you can’t get one for free anymore (at least not this contest), but from all we have heard from our readers, it may be worth
investing in
anyway.
The Maple:
The
Maple
from LeafLabs is an excellent example of the effect open hardware tools such as the Arduino have had on the hobbyist environment. Featuring an ARM Cortex-M3, the Maple has plenty of processing power and also can brag that it has the same header layout as the Arduino. This means that almost all commercially available Arduino shields will work on the Maple, a major selling point for anyone who has invested into a well stocked Arduino setup but needs an injection of performance.
Bonus Points:
OpenWRT based routers:
Often, projects need to be networked either by wire or wirelessly to operate as desired. Rather than buying a high-end development board with ethernet or Wi-Fi built-in, many readers suggested buying (or salvaging) any one of a number of low-cost wireless routers, and installing a custom linux based firmware on them. These boards often tend to have UARTs or USB ports originally meant for debugging available for expansion with sensors or other low-end microcontrollers. A hack in the true sense of the word, we applaud this sort of creativity. Some popular firmwares to check out would include
DD-WRT
,
OpenWRT
, and the
Tomato firmware
. Be sure to make sure support exists for your device before you go buying anything though.
FPGA boards:
When we set out to cover development boards, we had microcontrollers in mind. However when it comes to signal processing, custom high-speed logic, or flexibility, FPGAs are an excellent choice. The two major players for hobbyists these days are Xilinx with their
Spartan
line, and Altera with their
Cyclone
line. Both companies offer their IDE for free
,
and it comes down to personal preference when choosing which way to go. Both companies also support SoC designs to implement virtual microcontrollers on the FPGA, which adds an additional layer of flexibility for any hobbyist or engineer. Chances are, most hobbyists will not need the performance of cutting edge FPGAs (or
CPLD
s), so keep an eye out for older development boards on sale, or development boards made by third parties.
Build your own:
Although it may appear as a sort of “Get off my lawn” answer to our question, there is a lot to be said about building a development board from scratch. These days, many 8-bit or 32-bit microcontrollers require few if any external components to run in a basic mode, and can be combined with a JTAG or FTDI cable for programming and communication. There are countless tutorials on using perf-board or
etching a board
to make a custom circuit, and the experience is invaluable for breaking away from high cost development boards in simple projects
.
| 43
| 43
|
[
{
"comment_id": "333222",
"author": "Nick McClanahan",
"timestamp": "2011-02-14T23:09:11",
"content": "Good job! The only one I think might still be missing is the PICaxe, they make a few different boards & are stocked by the usual sources.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333226",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-14T23:11:40",
"content": "I had no idea that the Parallax Propeller had 8 cores although I have always considered them as potentially useful. We use arduinos in house for our boards though mostly because they are easy to program and are low cost but I could certainly see something like this being quite useful for real time type work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333227",
"author": "Brian",
"timestamp": "2011-02-14T23:12:36",
"content": "I may have been too late for the list and my dev board is just released so not a lot of users yet but it costs a little less than a Leaf but has more features (43 vs 49 dollars). Basically the Leaf is USB dev Cortex M3. My board the Eridani is Cortex M3 USB OTG/Host/Dev.http://teholabs.com/docs/eridani:overviewI don’t keep Arduino compatibility though, mostly because at some point you need to move on and that layout is restrictive. Nothing to prevent a converter board from the main I/O header to Arduino like pin out though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333234",
"author": "Kyle",
"timestamp": "2011-02-14T23:24:15",
"content": "“We have previously reviewed the mbed” -> points to Wikipedia",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333237",
"author": "Kyle",
"timestamp": "2011-02-14T23:24:49",
"content": "which then links to the review…you win this time…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333241",
"author": "James Munns",
"timestamp": "2011-02-14T23:30:21",
"content": "@Kyle: Good catch, I’ve updated it to what I meant to link to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333244",
"author": "spiritplumber",
"timestamp": "2011-02-14T23:34:35",
"content": "http://www.parallax.com/Store/Microcontrollers/PropellerDevelopmentBoards/tabid/514/CategoryID/73/List/0/Level/a/ProductID/509/Default.aspx?SortField=ProductName%2cProductNameThis is the cheap propeller dev board…A precisation: the prop cores don’t “take turns” executing code, they can either do that or run in full parallel. :)And yes I am an unabashed Prop fan. I also use picaxes and arduinos. The Picaxe8M is awesome for its price and what it can do (30 amp motor controller for $15 anyone?)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333248",
"author": "twopartepoxy",
"timestamp": "2011-02-14T23:38:14",
"content": "@Nick McClanahan I agree with you. PicAxe should definately be on the list.PicAxe chips/boards are about as easy to use as you can get, straight out of the box, they have a really helpful community and they’re really economical. They have their own version of BASIC with easy-to-use commands which do most of the work for you.http://www.rev-ed.co.uk/picaxe/http://www.picaxeforum.co.uk/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333264",
"author": "Ryan",
"timestamp": "2011-02-14T23:50:58",
"content": "No mention of Nexys2 FPGA from digilent?Its a great introductory budget FPGA board with great expansion option via FX port and soldering external circuits if need be, or theirs the PMod expansion boards they supply.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333276",
"author": "therian",
"timestamp": "2011-02-15T00:03:02",
"content": "I find it strange that article omit best development “board” for PIC – PICkit. Its microchip branded programmer and cheapest debugger available and it comes with board",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333279",
"author": "robot",
"timestamp": "2011-02-15T00:05:10",
"content": "still missed the gumstix…WTF!?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333284",
"author": "spiritplumber",
"timestamp": "2011-02-15T00:07:45",
"content": "PICkit? Thanks for the tip! This does look really good!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333285",
"author": "Brian",
"timestamp": "2011-02-15T00:10:10",
"content": "@ monsterSome 8-bit micros might be DIP so then they might be socketed, and you could remove them. But all ARM parts are pretty much going to be surface mount and therefore soldered on a board.I feel the goal of ARM development boards should be to be just the components you need for deployment so they are effectively things you’d have to put in a board anyway even if you could pull the chip (like power supplies and caps).Development boards that have 100 things on them aren’t going to be used for every project and so you have to either make your own board up or waste money on stuff you don’t need.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333304",
"author": "svofski",
"timestamp": "2011-02-15T00:49:06",
"content": "Altera DE2 (linked in the article) is good only if your college/university buys it for you. For personal projects, DE1 is just as good, has almost all the same features but costs much less.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333271",
"author": "monster",
"timestamp": "2011-02-14T23:59:53",
"content": "noob question here, but when you finish your project do you leave the board in it?i’ve seen some dev boards that you could remove the uC, but on boards like the maple it looks like it’s non-removeable",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333316",
"author": "ftorama",
"timestamp": "2011-02-15T01:06:49",
"content": "Nothing about Mini2440 ??????",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333317",
"author": "Oldbitcollector",
"timestamp": "2011-02-15T01:09:43",
"content": "Kudos to HAD for responding with Part #2 of this list! It’s good to see the Gadget Gangster Propeller Platform mentioned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333319",
"author": "Frank",
"timestamp": "2011-02-15T01:15:17",
"content": "I’m going to plughttp://www.seeedstudio.com/depot/usnoobie-kit-p-708.html?cPath=104_128right here, a cheap V-USB based AVR dev kit, no programmer or serial cable required",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333324",
"author": "rasz",
"timestamp": "2011-02-15T01:23:29",
"content": "PICkit is a trap, Dave from EEVblog revievew PICkit some time ago explaining how fckd it is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333325",
"author": "Michiel",
"timestamp": "2011-02-15T01:26:12",
"content": "Just ordered my Netduino Plus, little bit more expensive than an Arduino Mega but features ethernet on the board and is programmable in C#!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333330",
"author": "gmcurrie",
"timestamp": "2011-02-15T01:33:54",
"content": "@spiritplumber yes, of course the 8 cores don’t ‘take turns’ – sorry HAD, but – rewire!(thx spiritplumber ‘precisation’? new word to me – had to look it up! : )",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333392",
"author": "Haku",
"timestamp": "2011-02-15T02:48:36",
"content": "Chalk me down on the “Picaxe should be on the list” list, the powerfulness of the built-in functions they have and the sheer ease of programming them means you can spend more time concentrating on the other aspects of the project you’re working on than spending too much time fussing with wiring/programming the microcontroller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333394",
"author": "acomputerdog",
"timestamp": "2011-02-15T02:51:22",
"content": "great part 2!i cant think of anything not listed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333395",
"author": "lum",
"timestamp": "2011-02-15T02:52:08",
"content": "spiritplumber: About this:“The Picaxe8M is awesome for its price and what it can do (30 amp motor controller for $15 anyone?)”Would you care to elaborate?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333411",
"author": "ral",
"timestamp": "2011-02-15T03:36:59",
"content": "@rasz Dave from EEVblog did a review comparing the new PICKit3 to the PICKit2. He felt that a lot of the new “features” were actually not improvements. Microchip quickly responded with a video and said they would fix some of the “issues” with the PICKit3. Dave likes the PICKit2. The PICKit is not a trap.I use a PICKit2 and it works great for me. I have not needed to upgrade to the PICKit3 yet for my projects.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333482",
"author": "Matt",
"timestamp": "2011-02-15T05:09:18",
"content": "I am learning to develop for the TI C2000 series for a class, and I really like the microcontrollers. They are high end and fast, but they have budget parts available in the same line. Definitely not for the beginner, especially if you want to move past just the development board at some point (like a custom board), but they are some nice chips.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333569",
"author": "kenny m",
"timestamp": "2011-02-15T07:15:30",
"content": "The STm8s-discovery could be added, not much in support, but I found it pretty easy to figure out a lot of functions and how to control them, and since the programming is done a on a very low C level it’s pretty easy to whip up your own libraries, also the program limit of 16K is a bit annoying but I found it was easier to run out of none eeprom variable space then it was to run out of code space.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333596",
"author": "BP",
"timestamp": "2011-02-15T08:09:18",
"content": "Tincan tools has an arm9 (Samsung’s S3C2410A ARM920T) on a small daughter boardhttp://www.tincantools.com/product.php?productid=16133This was recommended over gumstik, but I have yet to make a final decision.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333653",
"author": "Duke Nukem",
"timestamp": "2011-02-15T09:49:52",
"content": "Chumby Parts – Gen 1 Motherboard (refurbished)http://www.sparkfun.com/products/9776These are also quite nice devboards, when you remove the crappy chumby linux and install a regular arm debian. You get a 450MHz ARM, I2C, SPI (not broken out but can be soldered to), 4xUSB, some GPIO, Lithium DC/DC, Lithium charger, lcd driver up to 640×480 (can do PAL/NTSC as well), VGA with an external DAC, audio input and output, amplifier for speaker, preamp for microphone, fm radio.All this for 32$. Just bought two with my freeday money. IMHO this is a way better deal than the arduino because its the same price and you get way more.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333675",
"author": "Thom",
"timestamp": "2011-02-15T10:45:04",
"content": "I’m really enjoying the FEZ boards. If you don’t need real time and you’re going to write a lot of code.http://tinyclr.com/hardware/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333793",
"author": "Jen",
"timestamp": "2011-02-15T13:49:06",
"content": "No Blackfin-based boards in either article? The Blackfin is a blast, I love working with them. I even wrote a .mod player for one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333934",
"author": "rasz",
"timestamp": "2011-02-15T17:44:34",
"content": "@Duke NukemHave you read the description? Those are NOT the boards you see on pictures on sparkfun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333943",
"author": "Mr Foo",
"timestamp": "2011-02-15T17:56:54",
"content": "The stm8 and stm32 disco boards are dead good, especially now the STM32 based STLink part of both boards has been hacked to act as a JTAG adapter (or, should you wish, a secondary STM32 controller with USB attached)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333948",
"author": "Jac Goudsmit",
"timestamp": "2011-02-15T18:01:11",
"content": "Just in case there’s going to be a Part 3, I would also like to mention the Bifferboard (http://bifferos.bizhat.com/) which is based on the RDC32xx. I don’t own one of these myself but I made an alternative firmware for a Linksys NAS that’s based on the same CPU.I admit, a board like this which basically emulates a 486SX-based PC running Linux (OpenWRT) may be overkill for many applications but I think at 68mm x 28mm it still fits well into the category of Embedded Development Boards and it’s got a high Cuteness factor :-)===Jac",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333963",
"author": "Brennan",
"timestamp": "2011-02-15T18:24:44",
"content": "Once again I see no mention of Olimex boards (http://www.olimex.com/dev/index.html), which are fantastic for the price.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334376",
"author": "frank",
"timestamp": "2011-02-16T04:22:44",
"content": "Good comment on the FPGA’s. I have used 2 xilinx boards and 1 altera board and none were without their problems. Though their systems are impossible to compare with a pic, they certainly add major complexity issues which you don’t see with a simple dev kit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335289",
"author": "M4CGYV3R",
"timestamp": "2011-02-17T01:44:01",
"content": "The PICkit3 Debugging Edition or whatever comes with a PIC18F45K20 demo board which is great for learning PIC-specific MPASM or just playing with their systems.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337326",
"author": "dmoc",
"timestamp": "2011-02-19T07:55:06",
"content": "The GoGo Board might interest some:http://gogoboard.stanford.edu/http://activities.sugarlabs.org/en-US/sugar/addon/4383http://wiki.sugarlabs.org/go/Activity/Gogo",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "339413",
"author": "dex",
"timestamp": "2011-02-22T14:19:57",
"content": "What about the CalaoSystems boards ?Powerful ARM9 boards in USB key (36 x 85 mm) and Tinycore (36 x 41 mm) formats, with lots of add-ons boards:http://www.calao-systems.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "344242",
"author": "DonB",
"timestamp": "2011-02-28T05:45:11",
"content": "I’m sort of itching to try repurposing an HP-20b calculator.http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3732535&prodTypeId=215348&prodSeriesId=3732534&swLang=13&taskId=135&swEnvOID=54",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "375259",
"author": "Michael",
"timestamp": "2011-04-07T08:59:42",
"content": "none of this stuff is locally available and if I have to wait for shipping or shell out lots of $$$ my motivation evaporates!Quite frankly why should I shell out for a custom board when I might already have microcontroller-based consumer devices lying around the house in the form of cheap <$30 mp3 players, old usb sticks, etc … IF ONLY I could find information on the chips in them and what I might need to write code for them.I search and search and search .. and find nothing! … whatever info is out there is well buried under search listings of spammy sites trying to SELL me stuff!I'd much rather find a way to use something that I might already have lying around (and it would be more affordable and probably more fun!)SHOPPING IS A TURN OFF!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "375544",
"author": "James Munns",
"timestamp": "2011-04-07T16:19:29",
"content": "@Michael,Chances are you (or a friend) have a wireless router sitting around you could use as a development board. Beyond that, devices like iPods/iPhones, Android Phones, and numerous high-end mp3 players have been broken into and made easy for people to get their hands dirty. Im sure you could find some older generation toys on ebay or craigslist for cheap.It is possible to break into cheaper devices occasionally, however they are often programmed with non re-writable memory, disabled programming lines (this can be done via fuses in some micros), or chips that have been covered in “goo” to prevent you from seeing them. Your best bet is to try and find datasheets for these microcontrollers/microprocessors, and then trying the break into their programming lines, or replacing the chips that hold the code that they run.Happy hacking, and be sure to let us know if you suceed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "977762",
"author": "kai leng",
"timestamp": "2013-03-13T21:15:22",
"content": "Ya, those olimex boards should be on the list!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,275.995628
|
||
https://hackaday.com/2011/02/14/kinect-home-theater-control/
|
Kinect Home Theater Control
|
Mike Nathan
|
[
"Kinect hacks",
"Multitouch Hacks"
] |
[
"ir",
"Kinect",
"mac"
] |
[Harishankar] has
posted a video on his blog
demonstrating the ability to control devices using the Microsoft Kinect sensor via IR. While controlling devices with Kinect is nothing new, he is doing something a little different than you have seen before. The Kinect directly interfaces with his Mac Mini and tracks his movements via OpenNI. These movements are then compared to a list of predefined gestures, which have been mapped to specific IR functions for controlling his home theater.
Once the gestures have been acknowledged, they are then relayed from the Mac via a USB-UIRT to various home theater components. While there are not a lot of details fleshed out in the blog post, [Harishankar] says he will gladly forward his code to you if you request it via email.
Thanks to [Peter] for the tip.
| 13
| 13
|
[
{
"comment_id": "333202",
"author": "alan",
"timestamp": "2011-02-14T22:37:23",
"content": "not sure if its just me, but that TV seems a little too small for it be wall-mount-worthy… atleast put something else on that wall, it looks terrible.Also – it would be extremely easy to drill a hole and drop the wires down to another hole down below…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333214",
"author": "andrew",
"timestamp": "2011-02-14T22:51:09",
"content": "Sweet. I’m pretty sure he got those gestures from n’sync. Ain’t no lie, bye bye bye",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333259",
"author": "MS3FGX",
"timestamp": "2011-02-14T23:49:23",
"content": "Times must be tough in the Harishankar house, rocking the 20 inch there looks like.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333377",
"author": "Hirudinea",
"timestamp": "2011-02-15T02:05:50",
"content": "Does it change the channel when you give it the finger? That would be perfect for election time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333378",
"author": "Gabe",
"timestamp": "2011-02-15T02:07:27",
"content": "Code has been published:https://github.com/codetiger/Kinect-UIRT/tree/master/OpenFrameWork/apps/examples/KinectUIRT",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333405",
"author": "Harishankar Narayanan",
"timestamp": "2011-02-15T03:31:34",
"content": "Hi, thanks for sharing my video.Meanwhile, It’s a 32 inch TV which is good enough for someone who never watches tv. Meanwhile it’s a rented house, so drillIng needs some special permission.Am using skeleton detection with OpenNI and then detecting gestures on my own. You can check the code in my github repository.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333501",
"author": "Concino",
"timestamp": "2011-02-15T05:31:39",
"content": "It seems very buggy and unresponsive. We invented remote controls for a reason, gestures to change channels and volume seems to be an overkill.I like the idea of giving the finger when I don’t like a channel or program though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333514",
"author": "Archy Bunka",
"timestamp": "2011-02-15T05:47:27",
"content": "A. Bunka here.ITT: Hurr Durr, look at the size of his screen. My pen…. SCREEN is massiver!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333667",
"author": "RemCont",
"timestamp": "2011-02-15T10:20:13",
"content": "I can change the channel on my tv using just my thumb, and without leaving the sofa.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333778",
"author": "echodelta",
"timestamp": "2011-02-15T13:06:34",
"content": "This is very next-thing. I want to use hand signs to control realtime multimedia in theater ops. Curwin 1850 thereabouts had signs for the seven-tone scale, able to be taught to anyone. Even aliens are taught in Close Encounters. As the volume war rages in earbuds and deafness sets in earlier, signing by hand will become second nature. Man or machine, it won’t matter. And there is nothing to break or get lost in the sofa. But, this makes big brother’s eye see very clearly. Scary stuff Kinect and Windows 8.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333809",
"author": "willow",
"timestamp": "2011-02-15T14:16:05",
"content": "Gabe I think it’s really interesting. It may not have a use to many people but this is an area worth exploring, if just for the fun of it. Thanks for sharing!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333878",
"author": "Jeff",
"timestamp": "2011-02-15T16:19:53",
"content": "I appreciate the effort that went into this…However, mounting a small TV on your wall is *not* a “home theater”. This term gets slapped on anything with a display or speakers anymore. Just call it what it is…a TV.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333908",
"author": "Blue Footed Booby",
"timestamp": "2011-02-15T17:02:01",
"content": "Of course the prototype is awkward, that’s to be expected, but it also doesn’t need to be totally, 100% perfect. I don’t know about you guys but about 1/6 the time I use a normal remote I screw up a digit or the dog walks in front of the beam or something. The kinect just has to do better than that.And just imagine if he could get that thing to consistently interpret sign language.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,276.046567
|
||
https://hackaday.com/2011/02/14/pedal-powered-el-wire-bike/
|
Pedal Powered EL Wire Bike
|
Mike Nathan
|
[
"Transportation Hacks"
] |
[
"bikes",
"burning man",
"el wire"
] |
Instructables user [samsmith17] wanted to
cover his bike with EL wire
for this year’s Burning Man, but he didn’t want to mess with the hassle of using batteries as a power source. Instead, he decided that his EL wire bike would be powered solely by the rider. In the interest of keeping things green, the entire build is made up of re-purposed parts, aside from the EL wire itself.
If you are not familiar, EL wire only lights up when AC current is supplied, so he decided to use a stepper motor to generate the current required. The stepper motor was mounted against his bike’s wheel, and wired backwards through the AC transformer portion of an old cell phone charger in order to step up to the required voltage. A rheostat was also added to the circuit in order to help prevent an over voltage condition, which could potentially damage or destroy the EL wire.
The end result is pretty cool to watch, and costs very little to boot. It would be nice to see someone expand on his project, adding additional wire colors and perhaps a few capacitors to keep the wire from going dark immediately after the wheels stop turning.
Continue reading to see a quick video of the completed project.
[youtube=http://www.youtube.com/watch?v=0n2m4cs3lx0&w=470]
| 31
| 31
|
[
{
"comment_id": "333132",
"author": "spiritplumber",
"timestamp": "2011-02-14T21:08:56",
"content": "DO WANT!How can we do jetwalls?Very clean execution there….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333134",
"author": "andres",
"timestamp": "2011-02-14T21:11:44",
"content": "what the shit crazy bendy bike.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333139",
"author": "Kuy",
"timestamp": "2011-02-14T21:15:58",
"content": "What kind of capacitor would keep AC flowing to the EL wire? Putting energy storage in this project would necessitate a rectifier and an inverter stage and destroy the hack elegance of it. How about a mechanical flywheel instead?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333140",
"author": "rasz",
"timestamp": "2011-02-14T21:16:37",
"content": "AC generated straight form stepper motor = cant use capacitors for storagemaybe a flywheel, but i doubt that",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333145",
"author": "signal7",
"timestamp": "2011-02-14T21:19:18",
"content": "A capacitor will not help unless you also add a great deal of additional circuitry to turn the stored DC on the cap to AC. At that point, why use a stepper? A DC motor/generator would be the obvious choice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333148",
"author": "Mike Nathan",
"timestamp": "2011-02-14T21:20:34",
"content": "@Kuy & rasz,Sorry about the cap comment, my mistake. That’s what I get for writing something up after midnight. Any thoughts other than a flywheel?The EL wire could be a nice safety feature for nighttime biking, provided there was a way to keep it lit for a bit once you’ve stopped coasting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333155",
"author": "alan",
"timestamp": "2011-02-14T21:32:48",
"content": "I know he didnt want to mess with batteries, but battery use while not pedaling could work out. Not sure how much longer that would save on battery than if he just used a battery all together.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333162",
"author": "RadBrad",
"timestamp": "2011-02-14T21:41:11",
"content": "Cool display!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333171",
"author": "saccrolux",
"timestamp": "2011-02-14T21:50:39",
"content": "The author doesn’t know his AC from his DC, but who cares? This is still a cool display.Troll troll troll your boat somewhere else fartface.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333173",
"author": "ProfP",
"timestamp": "2011-02-14T21:53:55",
"content": "A bloody dynamo generates AC. The bike I had when I was a kid came fitted with one… NAH.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333182",
"author": "Nate Siebert",
"timestamp": "2011-02-14T22:05:57",
"content": "Now all you need is a EL light suit and Frisbee!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333185",
"author": "Alex",
"timestamp": "2011-02-14T22:11:57",
"content": "I’m no electronics expert, so this might not work. But I doubt the EL wire requires a perfect sine wave to light… so maybe a square wave approximation of AC would work?A rectifier after the stepper would convert the AC to pulses of the same polarity, and a capacitor would smooth that so it’s closer to DC, as well as provide storage. Then the almost-DC could be pulsed (maybe using a 555 and a transistor?) through a transformer to step it up. It would have a horribly noisy signal but might be good enough to light the wire with very few added components.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333190",
"author": "spag",
"timestamp": "2011-02-14T22:19:15",
"content": "@ProfPIt looks like this project had a goal of using recycled parts. It stands to reason that he may not have had a spare dynamo in his parts box, thus a stepper motor isn’t a bad choice. Plus the extra whine makes it more striking in my eyes/ears.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333207",
"author": "schnulli",
"timestamp": "2011-02-14T22:38:53",
"content": "@AlexYes, that should work. But if I remember correctely, those cheap EL wire inverters you get with the wires require quite a bit of current. I don’t think that the 555 version will need much less so you’ll need some really big caps.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333243",
"author": "mikuslaw",
"timestamp": "2011-02-14T23:33:00",
"content": "@schnulliAccording to this:http://www.elwire.com/faq/faq.htmlit’s only 2mA, but at 100VAC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333269",
"author": "andar_b",
"timestamp": "2011-02-14T23:55:25",
"content": "@andresI loved the look of the swerve bike, I find it funny that only you mentioned THAT part. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333291",
"author": "rasz",
"timestamp": "2011-02-15T00:20:23",
"content": "EL wire typically will eat about 8 mA per meter at 2KHz, about 0.2mA at 60Hz (100V).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333310",
"author": "barry99705",
"timestamp": "2011-02-15T00:56:42",
"content": "How the hell would you over volt el wire with a peddle powered generator? I’ve run the stuff straight off a 110v outlet with no ill effects for years.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333375",
"author": "Oren Beck",
"timestamp": "2011-02-15T02:03:57",
"content": "RE: Care and feeding of both Inverters and EL wire.The numbers given by rasz seem in line with what I’ve seen many EL materials both wire and flat sheet replicating. With the usual “not always” is an understatement, cases. Flat planar EL sheet Vs round wire demands divergent Inverter output factors. Rather not unexpectedly- round wire has less C to nearby metal but the frequency “tilt” of current to frequency is non-linear in proportion to wire routing facts. Which can make some layouts like sign letters Vs Straight Long Planes act way differently at times.Remember the Non-linear bit and you may avoid some brain stress trying to figure out why stuff malfunctions weirdly different that you’d expect..EL wire has regions of Voltage/Waveform+Frequency and CURRENT all intersecting to affect lumens/color/lifetime. Choose Carefully. If you have the ability to apply a design ruleset for those parameters, you can tweak them for your project’s needs. Same applies to what you “feed” Inverters. A raggedy spiky fugly “Wild” Waveform can be digested differently by Inverts of one “first stage” design or another.Seemingly identical designs can melt swiftly on the garbage laden volts or last- forever.In theory, everything can be solved with math properly applied. In practice it’s often not that easy due to variables caused BY using random cruft from our junk bins. Or variables like distributed L/C of both the EL wire and Hookup wire between Power Source/Inverter/EL wire itself. At DC, such factors are negligible. at Khz or Mhz resonances- they become demonic. Enough of the exasperating ways Math defies reality or the reverse for a moment..Sometimes the just whack it together and watch it work modes are smarter than exhaustive overthinking. Design for an Art Hack Vs something to last forever can be worlds apart.Point Scored by this Hack for the “it works” factor:>",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333389",
"author": "Wolfin",
"timestamp": "2011-02-15T02:42:41",
"content": "“Continue reading” YES. THANK YOU SO MUCH.“After the jump” or “After the break” is so sickening to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333421",
"author": "truthspew",
"timestamp": "2011-02-15T03:47:55",
"content": "You’d be better off with a DC generator charging capacitors and then chopping up the capacitors with a switch type power supply that converts to AC. Then you get the best of both worlds, namely persistence, and the ability to regulate voltage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333801",
"author": "2011 Model",
"timestamp": "2011-02-15T14:02:27",
"content": "perfect",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333825",
"author": "third",
"timestamp": "2011-02-15T14:34:00",
"content": "@Kuy“What kind of capacitor would keep AC flowing to the EL wire?”A flux-capacitor, obviously!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333855",
"author": "David",
"timestamp": "2011-02-15T15:42:56",
"content": "This would add significant complexity, but it would be interesting if you could employ some slip ring type connectors to the wheels and put some EL wire on the rims, as well. You might be able to use the frame as one connector (through the hub bearings) and some “whiskers” on the rim that were kind of like the brake pads, but were always engaged. If the circumference of the rim had a slip ring connector, I think it would work. It would be prone to fouling, but if you had a little set of bristles/brushes that were cleaning the surface continually, that should keep it clean…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333861",
"author": "Sariel",
"timestamp": "2011-02-15T15:53:48",
"content": "this is an awesome hack, but how did he keep the elwire lit when its bent? I tried to make a tron pc case before it was cool and the corners always burned out or flickered.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333929",
"author": "rasz",
"timestamp": "2011-02-15T17:36:30",
"content": "different EL wires bend differentlythere should be info how much you can bend particular EL wire in the documentation that comes with itmine said to never go below 2cm diameter when bending (use something with 2cm diameter to bend the wire around it)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333964",
"author": "Oren Beck",
"timestamp": "2011-02-15T18:27:15",
"content": "RE: comment I missed about “Bloody Dynamo: there’s several sorts of wordplay lurking there but keeping on a linguistic track- Dialect between contries etc often does confuse techs from “other places” similar to my experience of folks from BC referring to a power pedestal as “the hydro”@David: Brushes are often just that in some applications. Slot cars used pieces of silver or copper braid strip that slid against the track rails on the sides of that “slot” in the track. The same trick “could” be replicated on a brake disc mounted on insulators. in fact- it would be very instructional to Hack at. Some scavenged carbon motor brushes aimed at an area of a brake disc %not% swept by brake pads might do to carry power. Me personally, I’d run the DC to the Invert thru the brushes. And then filter the DC for spikes/crap.As subjecting an Inverter to such brutal abuse is needless cruelty to innocent components.Filtering the DC is way easier than protecting the Inverter’s output from Rain/scrud/mung of unknowing origins on those brush/slip rings etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334346",
"author": "Drake",
"timestamp": "2011-02-16T03:18:41",
"content": "or you can do what modern windmills are trying to do . . . Pump water with the excess energy! Then when you stop the water will flow past a water wheel to generate more power …JK",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334388",
"author": "jeditalian",
"timestamp": "2011-02-16T04:56:32",
"content": "not reading all the comments, but what about 2 diodes, 2 capacitors, each set opposite of the other.. and some other crap after that i guess to turn each cap’s stored energy back into pulsed DC which is then…and routed to the../your mom goes to college, maybe she can help figure this out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334389",
"author": "jeditalian",
"timestamp": "2011-02-16T04:58:23",
"content": "maybe it would be simpler with 4 diodes and 4 caps.. more caps the better. better yet, use SUPERCAPS",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "413607",
"author": "whoneedstoknow",
"timestamp": "2011-07-06T06:17:18",
"content": "@third: There’s one at Think Geek if you want one. But you really have to want it because it costs a LOT. You could build one.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,276.161256
|
||
https://hackaday.com/2011/02/14/valentines-day-love-song-machine/
|
Valentine’s Day Love Song Machine
|
Mike Nathan
|
[
"Arduino Hacks",
"Musical Hacks"
] |
[
"arduino",
"music",
"solenoid",
"tellart"
] |
Just in time for Valentine’s day, [Adam Meyer] and the folks over at tellart.com have put together a little project they call the “
Love Song Machine
“. Using a web-based form, anyone can submit a song, which will then be played on a system of bells that they have set up in their office. You can choose from several pre-defined love songs, or you can create your own unique arrangement with which to serenade them. Once you are ready to go, your song will be queued up, and you can watch a video of your creation as it is being played.
The system is comprised of 8 solenoid-actuated bells which are all controlled by the Arduino they have hooked up to their web server. It’s a pretty fun idea, and there are sure to be plenty of people submitting songs, so get yours in before things get too busy!
Keep reading to see a video preview of their system in action.
[vimeo
http://vimeo.com/19854287
w=470]
| 13
| 13
|
[
{
"comment_id": "333123",
"author": "zool",
"timestamp": "2011-02-14T21:00:23",
"content": "cool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333146",
"author": "zool",
"timestamp": "2011-02-14T21:20:01",
"content": "hmm after doing it, i would suggest they just have a live feed so you can watch everyone’s song rather than just looking at a clock to countdown to your songthis kind of reminds me of silophonestill kinda cool though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333186",
"author": "Tolaemon",
"timestamp": "2011-02-14T22:15:46",
"content": "I’ve found very original the possibility of compose your song through the web. It reminds me the set of automatic tubular bells I built 5 years ago (http://tolaemon.com/atb/) . I’m building a similiar and improved device now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333187",
"author": "seomack",
"timestamp": "2011-02-14T22:16:58",
"content": "Check out bildr.com by the creator of this device. It has a good start at component level tutorials that are very well written.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333189",
"author": "seomack",
"timestamp": "2011-02-14T22:18:22",
"content": "Yea its bildr.org my apologies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333223",
"author": "Colin",
"timestamp": "2011-02-14T23:09:31",
"content": "They’re actually standing there watching (at least when mine played). It’s a lot of fun!I’m with zool though, it’d be fun if we could watch the feed and see everyone’s creations.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333242",
"author": "Adam Meyer",
"timestamp": "2011-02-14T23:32:46",
"content": "We really wanted to have a constant view for everyone. Our streaming server only allowed 10 people to watch at the same time though. And it needed to be more real time than all the mass streaming systems would allow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333302",
"author": "Greg",
"timestamp": "2011-02-15T00:45:53",
"content": "Polyphony and chromaticism would be cool to have.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333376",
"author": "Hirudinea",
"timestamp": "2011-02-15T02:04:19",
"content": "Cool, a web controlled carillon, I’ed like to see an entire 88 keyboard hooked up to 88 bells.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333403",
"author": "zool",
"timestamp": "2011-02-15T03:24:34",
"content": "use ustreem?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333774",
"author": "B",
"timestamp": "2011-02-15T12:55:28",
"content": "Yup, I agree with zool. Have a separate server run ustream",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333840",
"author": "Xb0xGuru",
"timestamp": "2011-02-15T15:11:00",
"content": "Agree with Greg – 12 notes in a Chromatic scale, so why only 8 bells?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334951",
"author": "Sigg3",
"timestamp": "2011-02-16T20:28:30",
"content": "So.. can we bruteforce this thing?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,276.096221
|
||
https://hackaday.com/2011/02/14/clap-to-remove-this-brassiere/
|
Clap To Remove This Brassiere
|
Mike Szczys
|
[
"Wearable Hacks"
] |
[
"ATmega168",
"bra",
"brassiere",
"electromagnet",
"relay"
] |
Like some strange manga come to life, you can
remove this brassiere with a clap of your hands
. Under the red bow is a not-so-small mechanical clasp that replaces the original on the strapless front-clasping undergarment. We hate to criticize, but [Randofo] really went off the deep end of hardware overkill on this project. The clasp itself is the electromagnetic coil removed from the case of a mechanical relay. An ATmega168 listens for a spike in sound pressure from a microphone, then drives the relay to release the feminine support system.
It
is
Valentine’s day. The question being is this romantic or sleazy? Watch the NSFW video after the break and let us know your opinion in the comments.
[vimeo
http://vimeo.com/19777275
w=470]
[Thanks DMF]
| 71
| 50
|
[
{
"comment_id": "333038",
"author": "Garreth",
"timestamp": "2011-02-14T19:06:05",
"content": "Schweet",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333037",
"author": "spiritplumber",
"timestamp": "2011-02-14T19:06:08",
"content": "is that a guy wearing the bra? >_>",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333044",
"author": "Chris Muncy",
"timestamp": "2011-02-14T19:10:24",
"content": "I thought the exact same thing….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333048",
"author": "ino",
"timestamp": "2011-02-14T19:13:31",
"content": "Not to be an ass, but it seems better to let the bra where it is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333051",
"author": "Mitch",
"timestamp": "2011-02-14T19:19:05",
"content": "ugh – man boobs on a teen. Concur with ino – let the bra stay on. No clapping.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333052",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-14T19:19:11",
"content": "It’s a trap!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333061",
"author": "zool",
"timestamp": "2011-02-14T19:25:33",
"content": "the article says it’s danica uskertboobs = automatic 5million views",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333062",
"author": "medix",
"timestamp": "2011-02-14T19:26:44",
"content": "Thanks guys. I’m now blind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333065",
"author": "Gdogg",
"timestamp": "2011-02-14T19:28:48",
"content": "cool idea I guess.bra doesn’t fit, ‘model’ looks like a teenage boy, and now hackaday homepage makes me feel uncomfortable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333066",
"author": "GeneralSpecific",
"timestamp": "2011-02-14T19:33:41",
"content": "yeah, I could have lived a full life without this… why oh why did I watch that ;_;",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333069",
"author": "joegeek",
"timestamp": "2011-02-14T19:37:38",
"content": "If they only had invented that when I was in my early high school days – it would have saved me much embarrassment with the ladies. -> “Is it on the front?” no wait….I it got it! NO.. it got to be one of those “On The Back Snaps” NO Wait! … do I twist the damn thing? or …… Huh? .. Hey, where are you going? NO!… please .. come back! don’t go! I really DO know what I am doing, REALLY!… My failed youth!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333070",
"author": "svofski",
"timestamp": "2011-02-14T19:37:39",
"content": "=(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333071",
"author": "ali",
"timestamp": "2011-02-14T19:37:51",
"content": "By looking at the pic i can say that guy is wearing a bra!! :DAnyways!! I would love to see a girl without bra!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333072",
"author": "rasz",
"timestamp": "2011-02-14T19:41:38",
"content": "That bra is too big and doesnt fit the girl thus making her look bad. Its not that girls fault.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333073",
"author": "NatureTM",
"timestamp": "2011-02-14T19:44:14",
"content": "Man, you guys are titty-snobs. Yeah, she’s a little pasty and skinny, and most of you guys probably have her beat in cup size. But, as a self-proclaimed titty-connoisseur, I can attest that every boobie is a gift that is meant to be appreciated and enjoyed!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "333077",
"author": "Caleb Kraft",
"timestamp": "2011-02-14T19:47:14",
"content": "NatureTM and Rasz,I concur with you both.How about that hack and writeup though guys?",
"parent_id": "333073",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "333080",
"author": "supershwa",
"timestamp": "2011-02-14T19:51:45",
"content": "If only all the women of the world had these. My hands would be red and sore from all the clapping!Awesome hack — I think we’re going to need a new section for “bra hacks” here at HaD. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333083",
"author": "Hacksaw",
"timestamp": "2011-02-14T19:55:44",
"content": "Wrong.Wrong.Wrong.Good concept horrible demonstration.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333089",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-14T20:01:42",
"content": "Not sure if serious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333090",
"author": "Necromant",
"timestamp": "2011-02-14T20:02:02",
"content": "Oh shi~What girl on earth would want to stuff an avr in her bra!?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333091",
"author": "NatureTM",
"timestamp": "2011-02-14T20:02:33",
"content": "Oh yeah, I forgot about the hack!Fun idea, but the implementation seems a bit cumbersome. You’ve got magnets, a relay, a 9V battery, and even a nut and bolt. I guess if women are willing to wear heels and spanks and whatnot, then maybe it’s acceptable to some. Maybe you can sell a few to Lady Gaga.If I was to try to make this more awesome, more wearable, and of course more dangerous, I’d get rid of the bulky magnet/relay. Instead, how about a small firecracker with a model rocket igniter? A black cat with a little cardboard between it and the skin should be safe. Boobies and explosions… I think I have a new fetish.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333098",
"author": "Drake",
"timestamp": "2011-02-14T20:08:51",
"content": "Reminded me of the hitch-hikers guide to the galaxy where they imputed some probability of clothes just floating away …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333100",
"author": "rasz",
"timestamp": "2011-02-14T20:10:06",
"content": "Cans say anything about the hack itself as i refuse to participate in instructables clickfest.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333101",
"author": "syale",
"timestamp": "2011-02-14T20:12:04",
"content": "Anyone not comfortable with their own sexuality would feel uncomfortable looking at a man with a bra on! I wonder how many women would be comfortable at the theater with one of these on? Encore!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333102",
"author": "MrDan",
"timestamp": "2011-02-14T20:13:03",
"content": "*applauds*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333103",
"author": "Justin",
"timestamp": "2011-02-14T20:15:27",
"content": "I know how much practice and engineering goes into making things fall off correctly for burlesque performances. This is a nice piece of costume if it can stand up to some reasonably energetic dancing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333133",
"author": "Bill D. Williams",
"timestamp": "2011-02-14T21:10:31",
"content": "It’s a tarp!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333141",
"author": "yosh",
"timestamp": "2011-02-14T21:17:08",
"content": "Ouch! I don’t wanna say this, but I will.Haven’t you guys seen lady tits before? THAT is NOT a guy, that is a lady. Actually named Danica Uskert.Sooo… Many virgins here I recon :/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333159",
"author": "signal7",
"timestamp": "2011-02-14T21:39:38",
"content": "@joegeek: I just simply watched a youtube video demonstrating how to … em … unhook a bra one handed. Haven’t had a problem doing that since – in fact, it’s remarkably easy once you’ve seen it done.Now, if you were doing this in the pre-youtube days, I can certainly understand. God I love the internet sometimes. Truly, this is what it was meant for! :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333160",
"author": "The Steven",
"timestamp": "2011-02-14T21:39:57",
"content": "Call me old fashioned, but I still prefer the “One-handed-snap-the-fingers-method”… I think it’s more personal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333166",
"author": "D_",
"timestamp": "2011-02-14T21:42:59",
"content": "Neither romantic or sleazy in INMO, simply just fun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333176",
"author": "Tod",
"timestamp": "2011-02-14T21:56:13",
"content": "Janet Jackson and Justin Timberlake could have saved themselves lots of problems if the designer just slipped this “malfunction” into her outfit… all those years ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333179",
"author": "Tech Scott",
"timestamp": "2011-02-14T21:59:20",
"content": "Not even ALMOST a guy. You guys are seriously mean. Neat idea",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333183",
"author": "Hattori HANZo",
"timestamp": "2011-02-14T22:08:52",
"content": "I slowly get why guys with a technology fetish are instantly suspected to be creeps or idiots. I wonder if the tit-critics have half as bold a mouth in reality…The idea of this hack had me laughing and I agree there’s a lot to be refined and sized down, but after all it is a prototype and it obviously works quite well. Having a finished version of this could be fun in many situations, pleasant or not :DAlso, wtf? I just looked in mom’s drawer some dozen years ago when I needed to find out how bras work ;p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333191",
"author": "squishyrobot",
"timestamp": "2011-02-14T22:20:29",
"content": "Yes, gentlemen, that is what a woman looks like who is slender and has natural breasts. Think Taylor Rain… or add in the light skin and think Stoya. And don’t pretend you don’t know who they are.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333199",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-14T22:35:38",
"content": "I made no implicit judgments in my statements. Male, female – doesn’t matter. Without the context of face or arms or anything else really and without looking at the movie, it is possible that one might assume the wearer to be male. Which, again, I made and make absolutely no judgment calls on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333200",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-14T22:36:21",
"content": "I also think that the fact that this bra is something like 4 cup sizes or more too big also contributes to the confusion issue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333208",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-14T22:40:31",
"content": "Now – I know as well as anybody that many projects need a lot of components. But… wow.Step 1.To open bra automatically, assemble the following:A front opening strapless under-wire braBlack fabricSmall nut and bolt(x2) Prototype circuit boardsAn Arduino (w/ATMEGA168 DIP chip)28 pin socket(x2) 22pF capacitors(x2) 0.1uF capacitors10uF Capacitor16mhz crystal1K resistor10K resistor100K resistor2N3904 NPN transistor7805 voltage regulator5V SPST relay5V DPDT relayAn electret microphone9V battery connectorA spare USB cable1″ shrink tubeThreadlockerA small grommetElastic bandDouble stick tapeQuick-setting epoxyRibbons and frillsSewing stuffSoldering stuffTools of various sortsWow. I would have thought that a fifth or a few dollar bills would do the job just as well and much quicker too!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333228",
"author": "Hamtaro",
"timestamp": "2011-02-14T23:13:30",
"content": "What? No more song jokes?If yer happy and ya know it, clap yer hands! *clap clap*Personally, I’d love to see that at a strip joint. It’d be so tacky but so freaking awesome at the same time. I’d wave a couple bills for that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333232",
"author": "jadon",
"timestamp": "2011-02-14T23:18:21",
"content": "@supershwapopgun with roll-caps",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333233",
"author": "Remarknl",
"timestamp": "2011-02-14T23:19:44",
"content": "anybody noticed the leds on the hearts! thats pretty cool..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333260",
"author": "Quagmire",
"timestamp": "2011-02-14T23:49:40",
"content": "*Clap**Giggity*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333303",
"author": "strider_mt2k",
"timestamp": "2011-02-15T00:48:24",
"content": "^^what he said^^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333309",
"author": "iToast",
"timestamp": "2011-02-15T00:53:10",
"content": "Ignore my last comment, thats apperently a girl, with a giant bra…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333404",
"author": "Lol",
"timestamp": "2011-02-15T03:31:13",
"content": "The trap comment made me laugh so hard, I wasn’t able to watch the video – which maybe was a good thing.I wanted to read the comments xD hahaha",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333466",
"author": "dbear",
"timestamp": "2011-02-15T04:45:24",
"content": "Give that girl a hand!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333470",
"author": "moshguy",
"timestamp": "2011-02-15T04:48:49",
"content": "Next idea, embed multiple bras with RFID readers. That way when you walk by bras just go flying off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333521",
"author": "stunmonkey",
"timestamp": "2011-02-15T06:02:47",
"content": "An Atmega 168, eh?Why not just have this thing cabled into a petaflop Beowulf cluster instead. Then it would be more of a hack by current standards, right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333543",
"author": "Shelby",
"timestamp": "2011-02-15T06:24:59",
"content": "This guy is a god and should be worshiped as such.That is all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333586",
"author": "pRoFlT",
"timestamp": "2011-02-15T07:53:24",
"content": "haha, at least im not the only one with misconceptions of the person in the photo. I was like, hey guys come look at this dude in a clap off bra! then boom, small tiny boobs emerged.I had to watch it again to be sure i saw what i saw. Even now that im at home im double checking.Not a bad hack. I’ve always used the pintch release move on bras. always worked for me. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333624",
"author": "timmah!",
"timestamp": "2011-02-15T08:45:31",
"content": "“There’s no such thing as free titties. Is there Zack?”",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.323781
|
||
https://hackaday.com/2011/02/14/batman-inspired-hidden-light-switch/
|
Batman Inspired Hidden Light Switch
|
Mike Nathan
|
[
"home hacks",
"Wireless Hacks"
] |
[
"batman",
"hidden",
"switch",
"wireless"
] |
[Chris] over at the New Hobbyist sent in his latest creation,
a wireless light switch hidden within a statue bust
. While shopping around for another project, he came across a wireless relay that can can be used to switch a standard 120v AC load. He bought the part without a project in mind, but inspiration quickly struck. Some of you young’uns might not remember the original Batman television series, but [Chris] certainly does. To access the Bat Cave, Bruce Wayne had to flip a secret switch located inside a bust of William Shakespeare that adorned his desk. While he doesn’t have a secret door to activate, [Chris] couldn’t think of any better way to switch on the lights in his man cave. He found a similar-looking bust of Beethoven and got to chopping his head off.
He fabricated a small mount for a push button, hiding the battery powered remote underneath, and an old 12v wall wart was repurposed to drive the wireless receiver. While not overly complicated, this is definitely a fun project and could make for a neat light switch in a kid’s room. Interested in some more Batman inspired hacks? Be sure to check out
this Bat Cave-style entrance switch
from a few years back.
Keep reading to see a video of his hidden light switch in action.
[youtube=http://www.youtube.com/watch?v=BFTzlHkIDGQ&w=470]
| 7
| 7
|
[
{
"comment_id": "333036",
"author": "fotoflojoe",
"timestamp": "2011-02-14T19:02:36",
"content": "Cute.Stately Wayne Manor is looking a little run down these days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333040",
"author": "The Cheap Vegetable Gardener",
"timestamp": "2011-02-14T19:07:43",
"content": "@fotoflojoe, the economy is hitting everyone hard these days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333087",
"author": "Hacksaw",
"timestamp": "2011-02-14T20:00:40",
"content": "Great Scott! Beethoven has been decapitated!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333201",
"author": "Itwork4me",
"timestamp": "2011-02-14T22:37:03",
"content": "I saw this like over a year ago!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333211",
"author": "TheNewHobbyist",
"timestamp": "2011-02-14T22:44:39",
"content": "@Itwork4meHah! Well I think it must have been a similar bust since I finished this Saturday night. Though it does seem like someone has tried just about every DIY project online somewhere…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333306",
"author": "strider_mt2k",
"timestamp": "2011-02-15T00:50:24",
"content": "My wife and I just turned our spare bedroom into a library of sorts, and in that vein I really wanted to rig a secret switch like this to open the closet door or something.Well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333947",
"author": "emilio",
"timestamp": "2011-02-15T17:58:55",
"content": "holy retro hacks, Batman!this also reminds me of the “Kennedy Bedroom” from Mars Attacks!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,277.801164
|
||
https://hackaday.com/2011/02/14/radio-controlled-led-light-show/
|
Radio-controlled LED Light Show
|
Mike Nathan
|
[
"Arduino Hacks",
"LED Hacks",
"Wireless Hacks"
] |
[
"arduino",
"led",
"light show",
"wireless"
] |
[Alan] was commissioned to make some wearable,
radio-controlled LED strips
for the
Travelling Light Circus
. It has taken some time, but he has recently finished some prototypes, and thought it was a good time to do a writeup on the project. The system is managed by a single controller unit, which communicates with any number of LED driver units, each controlling 4 HL1606 LED strips. The light displays are synchronized across all of the LED driver units via a 2.4 GHz radio, with each driver falling into synch almost immediately after being powered on. While some might be turned off to the fact that he uses Arduino Pro Minis to control the LEDs, this is far from a simple project.
[Alan’s] blog contains several posts about this project, with everything documented in detail. He spends quite a bit of time talking about the project’s software, as well as hardware issues he ran into along the way.
His blog is a must read, but even more so, it is a must see. The lighting effects are mesmerizing, as there are a ton of different light patterns these units can generate, so be sure to check out the following video of the lights in action.
[youtube=http://www.youtube.com/watch?v=BXAnan8zkC0&w=470]
| 15
| 15
|
[
{
"comment_id": "333043",
"author": "xeracy",
"timestamp": "2011-02-14T19:10:04",
"content": "ravers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333059",
"author": "anon",
"timestamp": "2011-02-14T19:25:15",
"content": "with a project like this it is a real shame the video doesn’t have people swinging them around like astrojax",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333097",
"author": "xeracy",
"timestamp": "2011-02-14T20:08:40",
"content": "i think this project is the core for a new toy for their act. look at their page/videos, they’re carni-ravers :D what I’m REALLY interested in is how this will be housed. the problem with most LED/rave toys is that the plastic housings are so shitty that if they smack together (like when doing glow-poi/stringing) they explode into a million pieces. I was thinking that this will be for a staff, but the led strips would have to be placed back-to-back for full a 360 degree viewing angle, so maybe its for persistence of vision poi.if anyone here is into making their own rave toys, hit me up (xeracy@gmail.com).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333152",
"author": "Alan Burlison",
"timestamp": "2011-02-14T21:30:56",
"content": "@xeracy, the strips come in a silicone ‘sleeve’ and we are intending to fit that in some fairly rigid translucent PVC tubing that will be attached to the arms & legs of the performers, so there’ll be an additional joint in the middle of each strip. Others will go on a wheel for POV stuff, yet others will go on static equipment, and then there’s also the stiltwalkers…@anon, there’ll be performance videos at a future date :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333308",
"author": "strider_mt2k",
"timestamp": "2011-02-15T00:52:31",
"content": "“Oh! It was OK!! But there were no clowns, no tigers, lions or bears,cand-floss, toffee apples, no clowns.”Oh WAIT! THAT was the Circus of HEAVEN!SORRY EVERYONE!!SORRY!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333318",
"author": "Vince",
"timestamp": "2011-02-15T01:15:08",
"content": "It reminds me of the lights I see when I squint through my eyelashes. Brilliant!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333909",
"author": "paul w",
"timestamp": "2011-02-15T17:02:54",
"content": "So are the patterns are being driven by the wireless controller, or are they stored on the local boards?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333959",
"author": "Alan Burlison",
"timestamp": "2011-02-15T18:18:16",
"content": "@paul w, the patterns are stored in both the controller and on the slaves. The clocks on the Pro Minis tend to drift (they are fairly cheap resonators), so the master sends out a continuous stream of ‘you should be at this step’ messages to keep everything in lock. That also means that if the slave loses comms with the master, as soon as it is regained the slave will jump back into sync – that’s what happens in the video when the 2nd slave is turned on whilst the 1st is already running.It’s the same pattern generation in both the master and slave, with virtualised output that in the master drives the radio, and in the slave drives the LEDs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334011",
"author": "Andy",
"timestamp": "2011-02-15T19:29:57",
"content": "I’m from The Travelling Light Circus and can confirm that we are going to be putting these to good use in many, many ways. We’ll be doing all sorts of festival entertainments in the UK later this year and will be posting new videos whenever possible. Thanks for the great feedback, and use our site to keep in touch; we have an occasional newsletter if you’re interested:http://www.travellinglightcircus.com/newslettersBig, big thanks to Alan for all his work. The blog doesn’t tell the half of it I promise you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334053",
"author": "MF",
"timestamp": "2011-02-15T19:43:16",
"content": "This a pretty impressive piece of kit… wow!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334660",
"author": "Delbwoi",
"timestamp": "2011-02-16T13:44:53",
"content": "Fantastic, reckon they’d look ace on a robot dancing around in a crowd of ravers at a Fezi. Good Work TLC. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338215",
"author": "woutervddn",
"timestamp": "2011-02-20T20:22:56",
"content": "I think I just found a project to spice my party up..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "346695",
"author": "Alan Burlison",
"timestamp": "2011-03-03T02:44:37",
"content": "Here’s a video of them mounted up and ready for use:http://www.youtube.com/watch?v=O2c-x2Y4Iqw",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "346978",
"author": "Alan Burlison",
"timestamp": "2011-03-03T11:06:04",
"content": "Writeup of the wheel mounting and more pictures here:http://bleaklow.com/2011/03/03/im_wheely_pleased.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "359147",
"author": "Alan Burlison",
"timestamp": "2011-03-15T17:53:54",
"content": "Here’s a properly-produced video that shows them being used for performance, the best video by far :-)http://www.youtube.com/watch?v=p2Q76JXH06U",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.185143
|
||
https://hackaday.com/2011/02/14/recordable-snes-belt-buckle/
|
Recordable SNES Belt Buckle
|
Mike Nathan
|
[
"Musical Hacks",
"Nintendo Hacks"
] |
[
"audio",
"recordable",
"snes"
] |
[Andrew] recently offered to help out a friend who was looking to get her husband a
SNES controller belt buckle
. Rather than simply slap one together, he decided that it would be far cooler if the belt buckle played audio as well. He gutted a broken SNES controller, removing most everything inside, leaving just the buttons and a few wires.
To allow for the belt buckle to record sounds, he pulled apart a recordable balloon that would play a 10-second audio clip when shaken. He moved around a few wires, allowing for the audio board to be triggered by a button press rather than motion. Once that was done, he went about fitting it into the SNES controller, drilling speaker and microphone holes in the process. With the electronics components all set, he reassembled the controller shell and mounted it to an old belt buckle he had sitting around.
The final product looks extremely fun, and would make any die hard Nintendo fan’s day.
| 15
| 15
|
[
{
"comment_id": "332952",
"author": "BadWolf",
"timestamp": "2011-02-14T16:28:35",
"content": "Idea ain’t new appart from the “valentine’s day” feature. This one has a whole bunch of sounds in it:http://www.youtube.com/watch?v=4UZnHi37vxg&feature=relatedand it’s a mix between a keychain and a snes controller. Thunbs up to Down on the D-Pad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332960",
"author": "alan",
"timestamp": "2011-02-14T16:42:02",
"content": "LOL @ the belt buckle he used. the 90s called and want their peace signs back.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332964",
"author": "raith",
"timestamp": "2011-02-14T16:51:19",
"content": "this might be an option for my broken snes controllers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332971",
"author": "holly_smoke",
"timestamp": "2011-02-14T17:08:56",
"content": "Should have kept the balloons “shake to activate” feature and got the guy to waggle his ass to begin recording.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333002",
"author": "gingero",
"timestamp": "2011-02-14T17:40:22",
"content": "Someone who wants a SNES belt buckle is a HUSBAND?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333014",
"author": "Paul Potter",
"timestamp": "2011-02-14T18:10:12",
"content": "Very retro cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333041",
"author": "VIPER!",
"timestamp": "2011-02-14T19:07:49",
"content": "Wow now were bring NERDY to a whole new level!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333093",
"author": "Hacksaw",
"timestamp": "2011-02-14T20:05:21",
"content": "I agree with gingero and alan.I will add I certainly hope it was a belt buckle that was sitting around because of a sister/girlfriend/wife and not his own…maybe it is because I am out here in the corn rows where nearly everyone wears a belt but a dude with a belt buckle like that would have gotten at very least a serious raft of crap if not a severe beating.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333177",
"author": "Cilantro",
"timestamp": "2011-02-14T21:56:16",
"content": "Alan – Peace signs were a 60s thing…not 90s…Gingero – Psh…you don’t know what you’re talking about. Geeks, gamers, etc…they’re pretty hot in my book. And I know for a fact that I’m not the only girl who thinks so. ;D I’d definitely make my husband a SNES belt buckle…and then I’d make one for myself, too! I think it’s badass!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333218",
"author": "andrew aka sillyzombie",
"timestamp": "2011-02-14T23:01:00",
"content": "creator here, to answer the last questions firstthe belt buckle was 99 cents at hot topic originally $16yes the buckle was for a husband, he has plenty of nintendo tattoos so this was fittingthe sound played when it was shaken it didn’t record when shaken, plus the battery would have died in a week if i left that intactya it was a heart peace sign but it was the only flat, cheap buckle that was the right sizeya i kinda got my idea from that video and i wanted to have it play many sounds but i only had a week to get this done and around $15 and the balloon it self was $10",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333239",
"author": "brad",
"timestamp": "2011-02-14T23:26:45",
"content": "i dunno about all of you, but i wouldn’t want my belt buckle to start recording when my wife starts shaking it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333262",
"author": "Lin-z",
"timestamp": "2011-02-14T23:49:55",
"content": "Hey there, I am the one who had this made for my husband . He looooves it!!! He has aleady received so many compliments! To the hick who thinks guys can’t wear cool belt buckles, well your a hick lol here in the city people are free to dress however they want and creativity is encouraged! My husband is a rave dj- so this belt buckle is right up his alley! Geez you ppl r so negative it’s sad lol I love everything about the belt buckle;):) oh it plays music when you press start btw , not when shaken. Thanks for the positive comment and a big Thanx to Andrew who made it;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333311",
"author": "strider_mt2k",
"timestamp": "2011-02-15T00:56:53",
"content": "So cool!My wife and I are both total geeks and would easily throw rock paper scissors to see who would get to wear this AWESOME belt buckle.It’s also extremely Walowitz, which is a plus.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333336",
"author": "andrew aka sillyzombie",
"timestamp": "2011-02-15T01:40:52",
"content": "i do take commissions if any one has a controller they want to see me make into a belt buckle",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336780",
"author": "walt",
"timestamp": "2011-02-18T17:15:04",
"content": "what’s with the infatuation with old school controller buckles? at least they put their own spin on this one and added new functionality. still gonna say it though… instructables boooo!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.00141
|
||
https://hackaday.com/2011/02/14/nintendoscope/
|
NintendOscope
|
Kevin Dady
|
[
"Nintendo Game Boy Hacks",
"Nintendo Hacks",
"Tool Hacks",
"Video Hacks"
] |
[
"gameboy",
"rasterscope"
] |
[Craig] has taken his gameboy hackery to the next step,
using an oscilloscope as an external display
. Back in November of 2010 [Craig] showed us how to
extract the video data from a classic gameboy’s screen
, armed with that information, and a pretty powerful XMega128A1 controller it seems straightforward to process that data and output it onto a oscilloscope that is in XY(z) mode, especially since he has done all of the hard work for us.
Scopes that feature XY mode typically have a Z input on the back, X controls where the beam is positioned from left to right, Y controls the beam from top to bottom, and Z controls the intensity of the beam. By sweeping the X and Y to act as lines, and Z to control the shade of the beam, its fairly easy to reuse your typically vector display as a raster display similar to televisions or computer monitors (as long as you have your math and timing right), making scopes very useful as output displays for devices like the gameboy, which do not have “standards” friendly display systems.
Join us after the break for a short video, and also check out the
scope terminal,
or the
VGA-to Sope converter
for more examples of how to use your oscilloscope as a raster display.
[youtube=http://www.youtube.com/watch?v=-7LzetRlZEg&w=450]
| 9
| 9
|
[
{
"comment_id": "332975",
"author": "holly_smoke",
"timestamp": "2011-02-14T17:11:35",
"content": "When I saw the title, I had visions of someone using a Nintendo as an Oscilloscope. The way it stands, this is more of a “ScopeTendo” than a “NintendOscope”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332978",
"author": "llort",
"timestamp": "2011-02-14T17:13:12",
"content": "VGA-to-Sope converter? You mean I can plug soap into a VGA port and it will display stuff now?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333011",
"author": "aztraph",
"timestamp": "2011-02-14T18:05:59",
"content": "Seriously, Me too. that would be way more useful than playing Nintendo on an oscilloscope.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333045",
"author": "Cricri",
"timestamp": "2011-02-14T19:12:48",
"content": "@allIt’s been done:http://www.ranchbots.com/GBDSO/gbdso.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333046",
"author": "third",
"timestamp": "2011-02-14T19:13:04",
"content": "The NintendOscope you’re referring to has existed for a while now in the form of Elektor’s Gameboy Digital Sampling Oscilloscope. Note the date (2000)!http://www.elektor.com/magazines/2000/october/gbdso-gameboy-digital-sampling-oscilloscope-(1).56576.lynkxStill, very cool project! It even has proper green-on-green Gameboy colours. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333049",
"author": "third",
"timestamp": "2011-02-14T19:16:16",
"content": "@CricriBeat me to it! For those interested, Elektor still sells the kits. Quite expensive though…http://www.elektor.com/products/kits-modules/modules/990082-91-gameboy-digital-sampling-oscilloscope.91407.lynkx",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333254",
"author": "rusty",
"timestamp": "2011-02-14T23:45:38",
"content": "that link is to the opposite of what he did. juss saying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333879",
"author": "third",
"timestamp": "2011-02-15T16:21:16",
"content": "@rustyYeah, that link was meant for holly_smoke and aztraph, who mentioned the opposite version.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338472",
"author": "Maave",
"timestamp": "2011-02-21T01:59:19",
"content": "I hope the guy who did VGA-to-oscilloscope submitted it for the 555 contest :)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.131079
|
||
https://hackaday.com/2011/02/14/nixie-tube-thermometer/
|
Nixie Tube Thermometer
|
Mike Nathan
|
[
"Misc Hacks"
] |
[
"nixie",
"thermometer"
] |
After seeing a picture of a thermometer using a bargraph style nixie tube in place of a mercury column, [Juergen Grau] decided he wanted to build his own.
Dubbed the “Nixietherm”
, his replica looks even better than the original. He used an IN-9 Nixie tube mounted on top of a custom plastic case, all powered by a 5v USB connection. He points out that his version does not use a PIC or any other sort of processor – it is built entirely from analog circuits. There are some RGB LEDs embedded in the plastic case that make for a cool effect, but they seem to simply cycle through the colors rather than represent how warm or cold the temperature is at any given time.
[Juergen] does not give a lot of details regarding the build as far as PCB layout or a parts list is concernred, but most of that can be extrapolated from the wiring schematic he provided. He also mentions that he will be making kits available in the near future. Be sure to keep reading to see the thermometer in action.
Thanks [Brian]
[vimeo
http://vimeo.com/19871666
w=470]
| 17
| 17
|
[
{
"comment_id": "332912",
"author": "Squintz",
"timestamp": "2011-02-14T14:50:44",
"content": "That looks very nice. Well done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332913",
"author": "1000100 1000001 1010110 1000101",
"timestamp": "2011-02-14T14:51:36",
"content": "Outstanding.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332925",
"author": "Knuckleball",
"timestamp": "2011-02-14T15:37:13",
"content": "THAT is cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332942",
"author": "Freax",
"timestamp": "2011-02-14T16:08:35",
"content": "really nice, would be cool to have! One word of warning though: Check the datasheet, most of this sort of tubes don’t like it if they display the same value for a long time (it shortens their lifetime).And the term “Nixie” doesn’t really fit as far as i understand…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332945",
"author": "bogdan",
"timestamp": "2011-02-14T16:17:00",
"content": "Wow. This looks super great!Congratulations!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332948",
"author": "sqnewton",
"timestamp": "2011-02-14T16:20:12",
"content": "Wunderbar!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332954",
"author": "Mike",
"timestamp": "2011-02-14T16:30:14",
"content": "<3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332955",
"author": "Fallen",
"timestamp": "2011-02-14T16:32:02",
"content": "Impressively clean build. Kudos.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333042",
"author": "Brennan",
"timestamp": "2011-02-14T19:09:13",
"content": "I would seriously consider buying a kit for this, the craftsmanship is very very good. I also love that it is completely analog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333067",
"author": "zool",
"timestamp": "2011-02-14T19:34:40",
"content": "nice",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333120",
"author": "sean",
"timestamp": "2011-02-14T20:52:05",
"content": "I would love this in kit form.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333192",
"author": "drew",
"timestamp": "2011-02-14T22:24:06",
"content": "every time I think everything cool that could be possibly be built with nixie tubes has been done, I am corrected.This is just tons of awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333410",
"author": "Tom",
"timestamp": "2011-02-15T03:36:28",
"content": "I recently purchased a Nixie kit from Jurgen. Quality parts all the way. Excellent support too. The kit had a few issues with a couple of parts and he sent me out replacement parts without question (leds & spacer) Looks interesting, but would love if it had a button to see what the current temp is rather than have the tube on all the time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333626",
"author": "Victor",
"timestamp": "2011-02-15T08:46:41",
"content": "Looks really cool…. Temperature range might be a bit high though, in winter my room temperature drops to 10-12 degrees Celsius at night. And that’s when you see the lights at best!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333743",
"author": "Alex",
"timestamp": "2011-02-15T12:04:24",
"content": "Absoloutely butiful build! The LEDs should indicate temp also imo, all blue if lower temp or all red if higher temp etc.. Proximity detection for displaying the value would be a good addition too for future work :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338668",
"author": "addidis",
"timestamp": "2011-02-21T12:26:32",
"content": "Dam thats a good looking thermometer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8147545",
"author": "Trebor Cadeau",
"timestamp": "2025-07-10T13:27:27",
"content": "What creates the glowing vertical line? LEDs or neon gas? Thank you.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,277.948123
|
||
https://hackaday.com/2011/02/14/arduino-based-pc-ambient-lighting/
|
Arduino Based PC Ambient Lighting
|
Kevin Dady
|
[
"Arduino Hacks",
"Video Hacks"
] |
[
"ambient"
] |
[royboy] from the Arduino forum has recently made a post showing off his
Arduino / PC ambient light system
. The system is simple to wire up and easy to use, as long as your video is being sent from a PC, which for many of us that use “home theater pc” systems is very convenient. Using a sparkfun red/green/blue (non addressable) led strip, an ULN2003A, an Arduino, and a short sketch written for processing the project is easy to toss together and very effective too.
The processing sketch continuously takes screen captures and then takes the resulting pictures and averages all the colors together. That average color is fed down to the Arduino over its stock serial connection, where it is output to 3 of the pwm capable outputs. Those outputs are connected to the 2003 Darlington transistor array to switch the 12 volt led strip.
It may seem like it would be slow, as processing is an interpreted Java based language, plus serial communication, plus Arduino overhead, but its actually very responsive and completes its task with little or no lag. Join us after the break for a quick video to see for yourself.
[youtube=http://www.youtube.com/watch?v=Am55k0k9eq8&w=450]
| 20
| 20
|
[
{
"comment_id": "332864",
"author": "jim",
"timestamp": "2011-02-14T13:14:44",
"content": "Looks like it needs the response averaging — it appears to be flickering.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332869",
"author": "Dreamer",
"timestamp": "2011-02-14T13:27:54",
"content": "^ Indeed. The transition could be somewhat smoother.Very nice hack though. I can use something like this on my HTPC.Does anyone know if this processing-code can be used in X11?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332871",
"author": "elektrophreak",
"timestamp": "2011-02-14T13:30:14",
"content": "looks cool!…i was hoping to see image processing done in Arduino :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332887",
"author": "Craig",
"timestamp": "2011-02-14T13:59:00",
"content": "Nice! I was a little surprised by what a great effect it has with a movie playing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332889",
"author": "MrX",
"timestamp": "2011-02-14T14:00:17",
"content": "It is lagging, specially visible when they are playing with the sabers. The method he is using for taking screenshots might not be the best.In X11 (Linux and maybe other Unixes) there is the shared memory extension which allows realtime captures:http://linux.die.net/man/3/xshmcreateimageScreen-recording applications for Linux often use this method.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332891",
"author": "r_d",
"timestamp": "2011-02-14T14:02:32",
"content": "Probably mentioned this the last time we saw one of these ambient light systems, but I still think it would be simpler and more effective to simply run the analog output values of a VGA or DVI connector through a low-pass filter. Might not work for HDMI, but HDMI is a totally unnecessary standard whose sole purpose is to provide the hardware interface layer for DRM-encumbered video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332950",
"author": "ColinB",
"timestamp": "2011-02-14T16:27:16",
"content": "Cool project! This is like the Philips Ambilight HDTV. I don’t know if the Philips Ambilight is the original invention, but it’s the first one I heard of.Interesting links:– Philips Ambilight .– “Ambilight” for your PC .– A simple static ambient lighting solution .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332956",
"author": "M4CGYV3R",
"timestamp": "2011-02-14T16:34:08",
"content": "Sometimes I wonder if the editors here just google ‘Arduino’ and post the first thing they find.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332961",
"author": "alan",
"timestamp": "2011-02-14T16:44:07",
"content": "@M4CGYV3RThere is a button that says “Tips” that’s where you contact HaD with links to your project. I’m sure Caleb does a bit of project searching himself – but i’d bet that most of them are tips from people.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332963",
"author": "raith",
"timestamp": "2011-02-14T16:49:51",
"content": "its a cool idea, just hope your not epileptic depending on what your watching",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332977",
"author": "Haku",
"timestamp": "2011-02-14T17:12:45",
"content": "The joke:How do you know if someone has an iPhone?They tell you.Now officially works with the Arduino:How do you know if someone uses an Arduino?They tell you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333001",
"author": "Bob",
"timestamp": "2011-02-14T17:35:55",
"content": "@MrXIf you use the XRender extension, you can scale down the root window to a pixmap, then read that out with XShmGetImage, the scaling is done in hardware (at least on nvidia), so you have a lot less pixels to read back to system ram.Sadly on nvidia this doesn’t work on fullscreen opengl applications when flippin is enabled, it seems to always grab from the same color buffer, so about half the time you get the backbuffer with only half the things drawn on it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333003",
"author": "Jammin0",
"timestamp": "2011-02-14T17:44:02",
"content": "Looks just like the amblone project. Maybe an easier way to do the same exact thing if you’re a beginner like myself. I was able to build it and have it up and running in a couple of hours. Cost was less than $50.http://amblone.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333158",
"author": "Prof. Geisst",
"timestamp": "2011-02-14T21:36:33",
"content": "Here´sanother Open Source Ambient Light Project. Page is in german languagehttp://www.atmolight.de/atmo.php?l=enand another one here:http://www.vdr-wiki.de/wiki/index.php/Atmo-plugin",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333172",
"author": "macona",
"timestamp": "2011-02-14T21:51:14",
"content": "I would love to do this with my mac. I have one of the planar XScreens that I have often thought would be perfect since there is a gap between the glass screen and the bezel that surrounds it.I think there was a plugin for PC VLC to do ambient?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333253",
"author": "ColinB",
"timestamp": "2011-02-14T23:45:06",
"content": "Cool project! This is like the Philips Ambilight HDTV. I don’t know if the Philips Ambilight is the original invention, but it’s the first one I heard of.Interesting links:–Philips Ambilight. The one to which everyone seems to refer. The original???–DIY Ambilight cloneon a PC using an AVR, some ULN2803’s, DirectX, and serial port communication between the device and the PC side. (Russian language.)Translated to English(note! terrible translation). It was interesting to read that he chose to illuminate three sides only because the bottom side interfered with the keyboard, etc. and he thought it looked bad.–A simple static ambient lightingsolution. Not nearly as cool as the ambient lighting that adapts based on current on-screen scene, however.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333255",
"author": "ColinB",
"timestamp": "2011-02-14T23:46:31",
"content": "P.S. sorry my original post earlier lost the links, but these are better links anyway!Hackaday really needs a preview button! Or at least remind us to use HTML for links, not plain text. BTW, what other formatting can be put in comments? I don’t see any info on the supported syntax.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333335",
"author": "error404",
"timestamp": "2011-02-15T01:38:00",
"content": "A while ago I started work on a similar project using a USB micro controlling I2C drivers like the TI TLC59116.Got some of the I2C code written but moved on to another project before I wrote the USB bridge code and client software. Or built enough modules to implement what I wanted (at least 4 RGB segments, possibly 6).Nice work anyway, goes to show that the quick and simple hack that you actually finish is worth more than the proper design you don’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333496",
"author": "mnisjk",
"timestamp": "2011-02-15T05:22:08",
"content": "I’ve been wanting to do something like this for awhile. It would be nice to use a video decoder chip or something so you could take the video from HDMI or component, and it could work with anything, not just the computer. I haven’t found anything to do this that isn’t surface mount though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333759",
"author": "Crom",
"timestamp": "2011-02-15T12:25:12",
"content": "I’ve done this before with my PC minus the Arduino.http://www.youtube.com/watch?v=7AHgtWsuInE",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,277.754331
|
||
https://hackaday.com/2011/02/13/overclocked-atmega32-gaming/
|
Overclocked ATmega32 Gaming
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"ATmega32",
"graphic lcd",
"ks0108",
"video game"
] |
With more pixels and more objects to track you’re going to need to get that AVR running pretty fast to get the job done. But [Vladutz2000] figured why stop at 16 MHz when you can
overclock an ATmega32 to 27 MHz for a faster gaming experience
?
This build may not be as colorful as
Super Pixel Bros
, but choosing a KS0108 graphic LCD certainly brings a lot more definition to the images. You can see in the video after the break that the AVR does an excellent job of generating and animating multiple objects. It doesn’t take much to put this together yourself but if you want the board layout done for you, you’re out of luck. The hardware for the project is installed on a PCB that was hand-drawn with an etch resist marker.
[youtube=http://www.youtube.com/watch?v=-30arS2Ji28&w=470]
[via
Dangerous Prototypes
]
| 11
| 11
|
[
{
"comment_id": "332245",
"author": "yetihehe",
"timestamp": "2011-02-13T21:38:40",
"content": "“Look mum, no arduino!”This is a cool project. As for pcb – everyone should be able to make such simple board themselves, software was the hardest thing here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332342",
"author": "therian",
"timestamp": "2011-02-14T00:11:30",
"content": "I run 16f84 4mhz pic on 38Mhz, 3 out of 5 pics run stable to 41Mhz.Anyone else like to check their uC limits ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332371",
"author": "rasz",
"timestamp": "2011-02-14T00:45:20",
"content": "72MHz STM32 can hit 100MHz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332391",
"author": "amishx64",
"timestamp": "2011-02-14T01:05:31",
"content": "pfft. I OC’d my atmega8 (liquid cooled of course)to 3.2 GHz via the clock from a old Cedar Mill Pentium 4 I had in the closet.Had to use a Cedar Mill b/c I’m Amish and all. Technicalities…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332400",
"author": "jeditalian",
"timestamp": "2011-02-14T01:25:28",
"content": "my C64 is running at 0ver 9000 MFLOPS, on LN2, but i guess this is just about ATMegaz..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332538",
"author": "Dekar",
"timestamp": "2011-02-14T05:14:22",
"content": "My STM32 runs stable at 128mhz, at 136mhz some peripherals tend to become unstable… :Phttp://dekar.wc3edit.net/flexoptix/arm-cortex-m3-OCed.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332668",
"author": "nah!",
"timestamp": "2011-02-14T09:24:34",
"content": "i want at least 2 bit color depthotherwise no gameboy feeling",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332756",
"author": "Phil",
"timestamp": "2011-02-14T10:45:34",
"content": "You people and your MHz, my C64 ran at 985kHz and we where happy! :-p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332780",
"author": "strider_mt2k",
"timestamp": "2011-02-14T11:11:01",
"content": "Thanks, Phil.I’m sure lots of people did lots of cool stuff with other completely unrelated hardware as well.Good eye.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332873",
"author": "jcg",
"timestamp": "2011-02-14T13:36:40",
"content": "attiny13 @ 38 MHz: I think it wins the price for most useless overclock award. Though I can now blink a LED really fast :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333167",
"author": "RadBrad",
"timestamp": "2011-02-14T21:43:15",
"content": "Great project, thanks for sharing!Brad",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,277.892103
|
||
https://hackaday.com/2011/02/13/range-finder-musical-toy/
|
Range Finder Musical Toy
|
Mike Nathan
|
[
"Arduino Hacks",
"Musical Hacks"
] |
[
"arduino",
"music",
"Parallax Ping"
] |
Instructables user [sketchsk3tch] was looking to make a fun toy for his kids using things he had around the house and
came up with the Ping Organ
. The organ is played by standing in front of the Parallax Ping range sensor, and moving around any which way you please. He interfaced the range sensor with an Arduino, scavenging a small speaker from an old toy for audio output.
The code for the project is fairly straightforward, borrowing most of it from the demo software that shipped with the Ping and the Arduino. He made a few small tweaks in order to get the organ to play frequencies of actual notes, as well as to allow for some flexibility when calculating the specific note to play.
While not the most complex project we have ever featured, [sketchsk3tch] reports that his kids love to spend time flailing around wildly in front of the organ, which is exactly what he intended.
Video of the organ being tested after the break.
[youtube=http://www.youtube.com/watch?v=6F4xoe1rQMs&w=470]
| 11
| 11
|
[
{
"comment_id": "332188",
"author": "woutervddn",
"timestamp": "2011-02-13T19:42:11",
"content": "reminds me of a wall that could do something similar. I wonder if you could use that system as a landing aid for RC planes..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332189",
"author": "Kaboof",
"timestamp": "2011-02-13T19:44:14",
"content": "landing aid for RC planes? Mounted in the plane or on the ground? As RC planes are controlled mostly manual I think it would be pretty hard to implement the “aid”.On autonomous it should be possible…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332238",
"author": "Alex",
"timestamp": "2011-02-13T21:15:11",
"content": "What is the range of this sensor? I think it is too small for RC pane landing..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332253",
"author": "blue carbuncle",
"timestamp": "2011-02-13T22:13:19",
"content": "I bet his kids would really like a theremin then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332339",
"author": "PhilKll",
"timestamp": "2011-02-14T00:10:51",
"content": "You could add a rockband/simon says sort of interface to it, and make a game. Match the displayed note to how far you are away from it, add a point if you are correct, something like that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332484",
"author": "jeditalian",
"timestamp": "2011-02-14T04:14:00",
"content": "all i want for christmas is brain cancer!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332488",
"author": "peterman921",
"timestamp": "2011-02-14T04:23:56",
"content": "@jeditalianbrain cancer from what exactly?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332564",
"author": "Jeditalian",
"timestamp": "2011-02-14T06:18:46",
"content": "lol i was JK i work with ultrasonic level devices all the time. Endress-Hauser, siemens, etc. ultrasonic, guided radar.. and i don’t have brain cancer, that i know of. plus ultrasound is safe for bollocks and babies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332565",
"author": "Jeditalian",
"timestamp": "2011-02-14T06:20:38",
"content": "i would really like to hear Zelda music recreated with that device and some nimble feets",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332727",
"author": "Don",
"timestamp": "2011-02-14T10:22:01",
"content": "Looks like this Toy could have a real future. I think he could actually make some money with it, if it was developed and sold. Especially with improved sound. And for me… something allot different than that typical buzzing sound. Like Guitar or even Keyboard Sounds for those less Rock Oriented… The kids look like they could dance for hours playing with that thing. I think it could encourage dance – exercise, musical sensitivity, creation and grow musical ability’s in Children. Which can lead to other types of Creativity and Learning. This could be a Toy with more to offer than just fun:) Great Invention!:)Don",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334355",
"author": "Jordan",
"timestamp": "2011-02-16T03:40:45",
"content": "I bet his kids would really like a theremin then.Posted by blue carbuncleI would really like to hear Zelda music recreated with that device and some nimble feetsPosted by JeditalianThat’s just what I was thinking… He’s made a theremin. A cheap one, though.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.23082
|
||
https://hackaday.com/2011/02/13/launchpad-midi-synth/
|
LaunchPad MIDI Synth
|
Mike Nathan
|
[
"Microcontrollers",
"Musical Hacks"
] |
[
"launchpad",
"midi",
"synth"
] |
[NatureTM] sent in a writeup for the
MIDI synthesizer he recently built
using a TI LaunchPad. The construction is pretty simple overall, consisting of little more than the MSP430, a handful of resistors, and an optoiosolater. Of course, a MIDI controller is required, but he already had that on hand.
Once the MIDI data is read from the optoisolator, his code takes care of the rest, adjusting the square wave sound generator to get the proper note. He does mention that since the synthesizer is monophonic, special care is taken to ensure that simultaneous notes are processed properly. You can route all of the sound into a single speaker, but he used the optoisolator to send the sound data to multiple LaunchPads instead, resulting in a fun little MIDI quintet.
He provides code and plenty of video on his site, but keep reading for a sneak peek of his synth in action.
[youtube=http://www.youtube.com/watch?v=0KzKj_vKYCU&w=470]
[youtube=http://www.youtube.com/watch?v=HYqZNmr8zfo&w=470]
| 6
| 6
|
[
{
"comment_id": "332163",
"author": "Simon",
"timestamp": "2011-02-13T18:43:02",
"content": "Actually there’s five speakers which makes it a quintet..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332181",
"author": "Matt",
"timestamp": "2011-02-13T19:29:22",
"content": "From what I can tell, it’s not a quartet but a quintet (see 1st vid @ 0:09 or 2nd vid @ 0:19).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332184",
"author": "svofski",
"timestamp": "2011-02-13T19:36:35",
"content": "Thanks for not playing the SMB tune on this!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332191",
"author": "woutervddn",
"timestamp": "2011-02-13T19:47:47",
"content": "+1 for simon :pI’m going to dive into midi stuff in a few weeks.. hope I’ll get something fun out of it xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332890",
"author": "Tea@ict",
"timestamp": "2011-02-14T14:02:02",
"content": "One microcontroller for every speaker seems a bit overkill to me, but still a great built! (It is definately a lot easier and faster built like this.) I enjoyed it very much, thanks for sharing!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "377977",
"author": "Gui Priaulx",
"timestamp": "2011-04-11T02:37:36",
"content": "This music is in a NES or SNES game!!!! :o Possibly Mario 3 at some point!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,277.841832
|
||
https://hackaday.com/2011/02/13/flash-trigger-with-programmable-delay/
|
Flash Trigger With Programmable Delay
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"08m",
"delay",
"flash trigger",
"PICAXE"
] |
Here’s a
flash trigger with a programmable delay
. These triggers are often used to capture quick events like a balloon popping. The technique takes place in a dark room with the shutter open. When the event is triggered the flash illuminates the scene and an image is captured. Because these require precise timing it has typically been a chore to synchronize the event, hence solutions like
using a pressure plate
.
This build, which centers around a PICAXE 08M, allows the photographer to use any trigger they desire, but adds a delay. The box above shows the apparatus set up for a 42 millisecond delay. So if you’re using the sound of the balloon pop as a trigger, you can hold the flash off until the event really gets going.
[Thanks Two Part Epoxy]
| 5
| 5
|
[
{
"comment_id": "332132",
"author": "FightCube.com",
"timestamp": "2011-02-13T17:33:14",
"content": "Sounds like a perfect project for a 555, except without the digital feedback of time. Although, you probably will have to do a trial and error method anyways to get the best shot… with digital photographs you can throw away all of the missed shots without worry, although that’s a lot of balloon inflating :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332153",
"author": "Oren Beck",
"timestamp": "2011-02-13T18:14:25",
"content": "42 is the answer.I used to service Microfilm cameras- 3M 2300/ 2800 and laser plotter to Microfilm output – 3m 2900 that needed timing delays incredibly sloppier intolerance parameters. R/C delays that fired a SCR or switched a transistor to open and close relays with large domed- “file service” possible- contacts. The Hack we began introducing as parts for the 2300 became scarce was using plug in “delay modules” that varied from Glass tube “Thermals” to a knob pot adjust to single second DIP switch setting models. And- they’re still made as a module to make some other Hack painless to make happen. No, that kind of module would never do a 42 millisecond anything except perhaps 42 milliseconds of contact bounce. This is an excellent hack and I wish we’d had it in 1997. And- if you want to get delay modules for places where a factory made is good enough- check out the relays etc from Amperite. Because sometimes Hacking from scratch like this 42 millisecond delay gets more appreciated when we compare it to commercial stuff.http://products.amperite.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332190",
"author": "biozz",
"timestamp": "2011-02-13T19:47:15",
"content": "my HAD was linked! :Dyeah i use a camera axe now … does the same thing but it has its flaws",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332278",
"author": "Brett",
"timestamp": "2011-02-13T23:00:11",
"content": "Normally you don’t want any delay when you are photographing balloons popping. The burst happens in less than a millisecond so you need to instantly trigger the flash.A delay circuit is typically used for photographing water/milk drops.Fightcube is right, a 555 circuit is a perfect fit for something like this:http://www.instructables.com/id/Laser-Triggered-High-Speed-Photography/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332541",
"author": "biozz",
"timestamp": "2011-02-14T05:20:36",
"content": "@Brettno you need some delay when photographing poping of balloons generally of 1MS to 2MSat least thats what i do",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.366175
|
||
https://hackaday.com/2011/02/13/nes-game-pad-guided-robotic-arm/
|
NES Game Pad Guided Robotic Arm
|
Mike Nathan
|
[
"Robots Hacks"
] |
[
"nes",
"pic",
"recycled",
"robot"
] |
Instructables user [Bruno] sent in his most recent creation,
a robotic arm controlled using an old NES game pad
. He scavenged the majority of his parts from a pair of old HP printers, including motors pulleys, belts and more. In fact, most of the metal and plastic components that he used come from the old printer chassis as well. He has included copies of the templates he used when manufacturing both the plastic and metal components, which should come in handy should anyone try to replicate his work.
[Bruno] also included all of the source code for the robotic arm and mentions that the project required two PICs due to pinout requirements. He ultimately decided to use two cheaper models over a single more expensive unit that would have supplied all of the pins he needed. His cost conscious build is impressive and undoubtedly demonstrates just how many old components can be reused in new projects if you really put some thought into it. Great job with this build, keep up the good work!
Be sure to keep reading to see some video of the arm in action.
[youtube=http://www.youtube.com/watch?v=4E052SKE28Q&w=470]
| 11
| 11
|
[
{
"comment_id": "332106",
"author": "nes",
"timestamp": "2011-02-13T16:49:30",
"content": "That’s amazing! The perfect build. Recycled printer parts, the cheapest PICs and a NES gamepad to top it off. Beautiful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332130",
"author": "FightCube.com",
"timestamp": "2011-02-13T17:30:18",
"content": "Really great project! I was waiting for him to knock over the blocks at the end!!! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332139",
"author": "zeropointmodule",
"timestamp": "2011-02-13T17:52:07",
"content": "10/10 for creative recycling.I always save dead HP printers if I see them at scavenging yards etc. Get laughed at but try finding those parts elsewhere at any price.Its getting hard enough to find them that buying *new* printers just to gut them like the LPF folks were doing with Bluray writers is feasible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332193",
"author": "woutervddn",
"timestamp": "2011-02-13T19:50:31",
"content": "WWANT!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332224",
"author": "joepastafari",
"timestamp": "2011-02-13T20:38:09",
"content": "anyone else find it odd that he took the time to etch a protoboard? you think he would have etched in some of the traces he needed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332259",
"author": "svofski",
"timestamp": "2011-02-13T22:24:01",
"content": "Very nice! It’s funny though that such an insignificant detail as a NES controller makes a title for a rather sophisticated project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332620",
"author": "Bob",
"timestamp": "2011-02-14T08:16:19",
"content": "Why do you need PICs if it is only manually controlled?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332621",
"author": "Bob",
"timestamp": "2011-02-14T08:16:47",
"content": "I miss the analog days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332926",
"author": "rasz",
"timestamp": "2011-02-14T15:38:42",
"content": "@ BobHe implemented stepper motor drivers in PICs, otherwise he would have to use $10 stepper driver chips PER motor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332995",
"author": "Bob",
"timestamp": "2011-02-14T17:18:52",
"content": "You can accomplish the same with a cheap H-bridge, a couple of transistors, and a 555 timer. Total cost per motor driver ~$2-3. The benefit is that no programing is required.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "335395",
"author": "Frogz",
"timestamp": "2011-02-17T04:32:04",
"content": "where’d the x and y buttons come from on a NES pad?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.487829
|
||
https://hackaday.com/2011/02/13/modern-freaking-pull-phone-numbers-from-youtube-audio/
|
Modern Freaking: Pull Phone Numbers From YouTube Audio
|
Mike Szczys
|
[
"Cellphone Hacks"
] |
[
"audacity",
"audio",
"frequency",
"python",
"youtube"
] |
[Charlie X-Ray] is having some modern fun with the phone system by
pulling dialed numbers from the audio track of YouTube videos
(
translated
). The first step was to find a video where a telephone is being dialed
and
the sounds of the keypresses are audible. You can’t tell those tones apart, but a computer can. That’s because each number pressed generates a combination of two out of seven closely related frequencies. [Charlie] isolated the audio using Audacity, then wrote a python script to generate a spectrogram like the one above. By matching up the two dark nodes you can establish which two frequencies were played and decode the phone number being dialed. So how does this work again… find audio of a phone being dialed, decode the number.. profit?
| 48
| 48
|
[
{
"comment_id": "332072",
"author": "Andy",
"timestamp": "2011-02-13T15:23:14",
"content": "Yay, DTMF for the win!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332073",
"author": "daft",
"timestamp": "2011-02-13T15:26:19",
"content": "I am still waiting for the 1st proof of concept for our live mining by using face reconstruction on all the pictures and movies available at the net.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332075",
"author": "Blurgah",
"timestamp": "2011-02-13T15:37:26",
"content": "Isn’t it Phreaking….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332076",
"author": "Rotceh_dnih",
"timestamp": "2011-02-13T15:38:13",
"content": "This is really clever ,but from a social engineering view it could be very dangerous. in any case i think ther will be a few people receiving random phone calls ..lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332077",
"author": "HanSolo",
"timestamp": "2011-02-13T15:38:40",
"content": "Actually, on most of these phones if you listen close enough you CAN hear the difference.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332078",
"author": "James",
"timestamp": "2011-02-13T15:39:39",
"content": "If you can isolate the audio of the DTMF tones, you can just play the audio into the mouthpiece of your phone when it’s at a dialtone, which will dial the number.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332087",
"author": "2uro",
"timestamp": "2011-02-13T15:47:29",
"content": "Lol. This is good. It makes me think of that clip on hak5 from the toorcon clip.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332088",
"author": "Shift",
"timestamp": "2011-02-13T15:50:17",
"content": "freaking?*phreakingThe term seems to be very loosely used here. Anyway, sounds like a good exercise. Good on him.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332089",
"author": "Infidellic",
"timestamp": "2011-02-13T15:53:15",
"content": "This isn’t exactly anything new, frankly if there’s little background noise you could hold a phone (with a dialtone) up to the speaker and it would dial the number. Or just use a dedicated DTMF decoder IC (they cost pence/cents)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332091",
"author": "Busketeer",
"timestamp": "2011-02-13T15:56:32",
"content": "Though a fun exercise, how exactly is this related to phreaking?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332092",
"author": "Nich",
"timestamp": "2011-02-13T15:59:08",
"content": "Wouldn’t this only work on touch-tone phones?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332094",
"author": "yonsje",
"timestamp": "2011-02-13T16:03:25",
"content": "Look at the comments on this post:http://hackaday.com/2010/05/09/twilio-adds-touch-tone-telephone-control-for-arduino/#comments",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332120",
"author": "ITIL Prince",
"timestamp": "2011-02-13T17:02:34",
"content": "Reminds me of Three Days of the Condor, 1975:“G. Carriage Return. Symbol for Number”He plays a recording of tones into a phone, presumably to an operator or computer with speech recognition, and receives back the number of the assassin, Jobert.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332121",
"author": "Sam",
"timestamp": "2011-02-13T17:03:17",
"content": "@Nich: No, even if you have an antique dial pulse phone, the tones are decoded by your local phone company.As for preaking uses, this kind of stuff can be used to steal voice mail and other access codes, although I doubt you’ll pick up much of that from youtube videos.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332122",
"author": "qwerty",
"timestamp": "2011-02-13T17:03:51",
"content": "The easiest way to decode a DTMF signal is by using a dedicated chip such as the MT8870 ($1.5) plus a microcontroller. If you have a pc handy some software solutions are available like this one (for windows but open source).http://www.qsl.net/kb5ryo/dtmf.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332123",
"author": "Stevie",
"timestamp": "2011-02-13T17:05:40",
"content": "If you hold the microphone of an analog phone to your computer speakers and then play the clip, the number will be dialed. You wouldn’t know what number is being dialed but you would get connected to the number :) It’s the same way blue boxes used to work back in the phreaking days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332126",
"author": "FightCube.com",
"timestamp": "2011-02-13T17:25:02",
"content": "Brilliant!!!! I’ve thought of doing this before with hardware… but modern technology makes it so much easier!!! (laughing) so cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332131",
"author": "xorpunk",
"timestamp": "2011-02-13T17:32:09",
"content": "You can decode the bit-stream header and adjust it too on off-audio. I seen this done when ‘vlogging’ first came around to pwn people..Also..isn’t hak5 to hacking culture what MTV is to the music industry? None of the people on there actually have talent. It’s produced media backed by multiple marketing companies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332133",
"author": "George Johnson",
"timestamp": "2011-02-13T17:36:42",
"content": "Interesting, but any tone decoder chip could do this too. I mean, after all, that’s how it’s been done in the past. This is just a more technological way of doing the same thing.I guess it does get rid of external components.But I’m not sure why you’d want to do this anyway. Are there phone numbers in youtube that I should be really interested in to start with? I don’t recall ANY dialing in any of the video’s I’ve seen. Who are they calling that I should be interested in??",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332137",
"author": "cde",
"timestamp": "2011-02-13T17:45:19",
"content": "Correction, phones play a combination of 2 out of EIGHT (8) tones, not 7. Just cause you don’t have/see buttons for the 4th column doesn’t mean they arn’t there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332143",
"author": "Stevie",
"timestamp": "2011-02-13T17:57:27",
"content": "@George J: The only time I’ve seen people dialling in a youtube video is for prank calls. Most of these pranksters seem to use Skype which I believe doesn’t use true DTMF but instead a single emulated (if you like) tone that is the same for each number.Is there much practical use for this? Not likely. Is it pretty clever anyway? Yes, I think so :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332151",
"author": "Svante",
"timestamp": "2011-02-13T18:08:53",
"content": "SeeSoundminer: A Stealthy and Context-Aware Sound Trojan for SmartphonesonApu Kapadia’s research publications pagefor an example of using that technology on Android to steal credit card numbers.YouTube demohere./Svante",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332156",
"author": "jeditalian",
"timestamp": "2011-02-13T18:19:26",
"content": "if they’re dialing their friends/family with a cellphone, you’re probably not going to hear anything since they’ll be in the phonebook. and idk why you’d make phreaking an F-word",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332168",
"author": "sm10sm20",
"timestamp": "2011-02-13T18:49:21",
"content": "freaking.no.phreaking.yes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332174",
"author": "bty",
"timestamp": "2011-02-13T19:12:28",
"content": "decoder chip, decoder chip..Why not simply bandpass and Goertzel it ?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332196",
"author": "war6763",
"timestamp": "2011-02-13T19:56:54",
"content": "This is a snap to do with MATLAB. Once you have your audio file, you just import it and generate a very nice spectrograph! It takes 5 minutes to code!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332220",
"author": "mungewell",
"timestamp": "2011-02-13T20:26:23",
"content": "by the way ‘SoX’ has a builtin effect for producing spectrograms.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332236",
"author": "gmcurrie",
"timestamp": "2011-02-13T21:13:12",
"content": "555 (telephone number)555 IC555 contest?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332256",
"author": "blue carbuncle",
"timestamp": "2011-02-13T22:18:29",
"content": "@mungwell as does Cool Edit Pro with DTMF generation to compare. This is basic stuff most of us have done years ago minus the youtube part. There are also a number of decoders from those days he would probably find helpful if ya can get dosbox to run them ;) Glad to see the new generation is trying tho :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332284",
"author": "matt",
"timestamp": "2011-02-13T23:08:13",
"content": "with practice, a person can indeed decode dtmf by ear",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332303",
"author": "Jonathan Herr",
"timestamp": "2011-02-13T23:37:03",
"content": "I’m suprized noone posted the number!0-221-480-9607",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332388",
"author": "Ekaj",
"timestamp": "2011-02-14T00:58:58",
"content": "Ummmm, ever heard of a DTMF decoder IC? This has been done a thousand times over, without the need for a computer.This is not “Preaking”. I am assuming that’s what you meant when you said “freaking”. This site is so pathetic. Wow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332409",
"author": "Spork",
"timestamp": "2011-02-14T01:46:15",
"content": "@matt,That’s real phreaking, HaD is only interested in “freaking” on youtube. I’m guessing from the title that mike is just looking for girls dancing in a risque fashion rather than hacking.;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332434",
"author": "Fallen",
"timestamp": "2011-02-14T02:33:54",
"content": "WTF why are people dialing numbers while making videos…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332465",
"author": "OldSkool",
"timestamp": "2011-02-14T03:35:40",
"content": "Dial a pager or voice mail that has a “leave a callback number” option. Then play the tone audio into the mic of the phone. No python required.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332546",
"author": "ejonesss",
"timestamp": "2011-02-14T05:30:31",
"content": "i agree with Fallen how do numbers get dialed on youtube?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332550",
"author": "SteveH",
"timestamp": "2011-02-14T05:40:36",
"content": "You could also use Multimon to do this in an automated way.http://www.baycom.org/~tom/ham/linux/multimon.htmlI’ve always liked Baudline for generating spectrograms.http://www.baudline.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332575",
"author": "Volectorus",
"timestamp": "2011-02-14T07:09:36",
"content": "There used to be a pair of twins that were blind and could tell you what number you dialed from across the room by the sound.Kudos to someone who can find more info!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332584",
"author": "anon",
"timestamp": "2011-02-14T07:30:22",
"content": "reminds me of this guy:http://www.wired.com/threatlevel/2009/06/blind_hacker/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332585",
"author": "John",
"timestamp": "2011-02-14T07:35:31",
"content": "DTMF Decoding, nothing new sorry. Ive seen them on circuit boards with an LED display of each digit pressed, sorry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332591",
"author": "Volectorus",
"timestamp": "2011-02-14T07:39:38",
"content": "Must add, :) i used to have an old school phone that had an actual bell. very fun. but using the phone base to dial numbers is very possible (hitting the hang up thing with the proper timing) but i dont recomend it. dialing 911 on accident is a biatch.I still think it is a good skill to know for phreaking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332624",
"author": "Ausphreak",
"timestamp": "2011-02-14T08:24:15",
"content": "Phreaking (not freaking) is not dead!This isn’t a new trick. You can always just grab DTMF decoder software. You might have to mess around with some audio filters on ‘Adobe Audition’ but should generally work.Been doing it for a while.^_^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332881",
"author": "Scott",
"timestamp": "2011-02-14T13:52:52",
"content": "I echohttp://www.qsl.net/kb5ryo/dtmf.htmWhy do manually which has already provided automatically? I imagine this guy just wanted a project to work on, which is cool. With a few extra lines of python he could have automatically decoded the number to make a linuxy program similar to the one above. It’s close to being convenient!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333032",
"author": "MagicWuff",
"timestamp": "2011-02-14T18:53:20",
"content": "Did anyone else think of “Hey Arnold!” when they read this? There was an episode where Gerald took a video recording of someone dialing a phone and got the phone number from it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333050",
"author": "Gfire",
"timestamp": "2011-02-14T19:18:44",
"content": "This has been done for along time. David Letterman had to mute the phone when he dialed because people were holding their phone to the TV.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333393",
"author": "Taylor Alexander",
"timestamp": "2011-02-15T02:50:12",
"content": "So many of you guys are really being ignorant…I mean, its a nice suggestion to use a decoder chip and some of you are genuinely being helpful by letting us know that they exist, but some of you seem to have a tone that using a decoder chip is easier because a computer isn’t involved, and that somehow this project is dumb because of that…Before you go and call someone else or their project stupid, why don’t you think about what you’re saying? This is a project to decode tones from videos on YouTube… And where there’s YouTube access, there’s always a computer (well, unless you’re using a smartphone, but thats not whats happening here).So which is easier? Buying a dedicated IC and programming a microcontroller (from your PC, no less) to decode the tones, or just doing it straight from the PC that accessed the video in the first place?I know some problems can be solved with $2 worth of hardware, but if you have a $1000 piece of hardware lying around that will already do it, there’s nothing wrong with using that…Really some of you don’t even think about your comments.-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337399",
"author": "john",
"timestamp": "2011-02-19T09:38:41",
"content": "http://www.qsl.net/kb5ryo/dtmf.htmHam operators, ahead of the game",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "387842",
"author": "Hmmm",
"timestamp": "2011-04-29T09:50:32",
"content": "hmmm… I wonder could this also be done with the sound from computer keyboard keys?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.57182
|
||
https://hackaday.com/2011/02/12/uncrippling-lower-model-speakers/
|
Uncrippling Lower Model Speakers
|
Mike Szczys
|
[
"digital audio hacks"
] |
[
"sennheiser",
"speaker"
] |
It looks like this low-end Sennheiser HD speaker has the same internals as it’s better-brother but
has been altered to reduce sound quality
. It’s not uncommon for manufacturers to hobble a product in order to sell more units at a lower price that reflects less features. Linksys WRT54G routers immediately come to mind, or perhaps the more recent
Rigol 100 MHz oscilloscope hack
is a better example.
In this case, that black piece of foam on the left has been added to the 555 version of the hardware to decrease the sound quality you get from the much more expensive 595 model. Take it out and you’ve got an upgrade that would have cost you more than a hundred bucks. Don’t think this is the only difference? There is a bit of a difference in case design, but [Mike Beauchamp] also found that if you acquire a replacement driver for either model you’ll get the same part.
| 89
| 50
|
[
{
"comment_id": "331476",
"author": "Jelly",
"timestamp": "2011-02-12T20:40:11",
"content": "Hey whats wrong with WRT54G? :)Works super with dd-wrt/openwrt .. oh… oh I get it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331485",
"author": "mindbleach",
"timestamp": "2011-02-12T20:51:12",
"content": "Adam Smith be damned – this sort of crippling is a wholly unethical practice and should probably be illegal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331489",
"author": "Malikail",
"timestamp": "2011-02-12T21:00:02",
"content": "I agree mindbleach but Adam Smith has nothing to do with this, nor does any free market practice. This is the result of our imported English-Mercantilist system.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331490",
"author": "derk",
"timestamp": "2011-02-12T21:00:49",
"content": "Someone smack him in the face with a clearly visible hand.This kind of wasted potential makes dolphins cry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331491",
"author": "Slarg",
"timestamp": "2011-02-12T21:01:49",
"content": "The mod is a cool thing, but the HD555 itself is far from the low-end of headphones…I might try it one day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331492",
"author": "ReKlipz",
"timestamp": "2011-02-12T21:04:39",
"content": "@mindbleachI completely disagree. If manufacturers want to dupe the ignorant/uneducated, then so be it; more power to them. It’s [likely] the ignorant’s fault for not doing their homework. I’m all for buying a crippled product at half the price and then uncrippling it myself. It saves me a pretty penny.Say this crippling process was somehow made illegal. It’s likely that this would only increase prices of everything, as this means they really need to use crappier components in their crappier product; which in turn means needing to source yet another part, have yet another assembly process, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331494",
"author": "Renee",
"timestamp": "2011-02-12T21:14:06",
"content": "Not everyone is as smart as you think you are.One of the underlying principals of consumerism is convenience. Take fast food for example. I know how to cook and raw ingredients cost less and give me more for my money.However I can’t always cook because of circumstances outside of my control so I go with the convenience of fast food.Under your opinion I should basically be punished for something outside of my control.What if I don’t have the time to investigate, reverse engineer and hack something? That’s not even including the amount of time it would take to learn all of the prerequisites necessary for hacking something.What if I just want to relax from my busy life and listen to some music?Like what if someone is too busy going to medical school and working a brutal internship only to end up saving your life one day because you got in a car accident? I bet you wouldn’t bitch about people uneducated in one little field now would you?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331496",
"author": "Fuzzy",
"timestamp": "2011-02-12T21:20:37",
"content": "I disagree, I think it’s neither unfair nor unethical, it just feels wrong to us.The consumer is paying less for the low end version while getting the durability of the high end version, he’s getting his monies worth and the producer uses less material and can buy cheaper in bulk.That be said I’m hacking the daylights out of anything I get my hands on that has had this treatment :).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331499",
"author": "Kemp",
"timestamp": "2011-02-12T21:26:23",
"content": "It’s the same process as used for PC parts (CPUs, GPUs, motherboards…). It’s far cheaper for them to provide a faulty high-end part (a quad-core with a fault in one core can be sold as a dual-core after disabling two of the cores) or a high-end part with some components missing (very common with motherboards). Designing a completely new part would end up *increasing* the cost to the consumer, for both the low-end and high-end parts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331501",
"author": "pod",
"timestamp": "2011-02-12T21:27:12",
"content": "@ReKlipzeiher you are a troll – then gratz, 10/10 – or you just posted the most retarded comment ever",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331502",
"author": "josh",
"timestamp": "2011-02-12T21:27:59",
"content": "@mindbleach: It’s called free enterprise. Off-brand and refurb products, for the most part, are just as good as name brand. I work in the packaging industry. It’s a real eye-opener going into a factory and seeing the store brands using the exact same line, sometimes the exact same container with a different label. For example, if you want Valvoline oil, just grab some from NAPA for about 25% less.If you ask some places, they charge extra for the name brand because of advertising AND because there’s a longer warranty. That means you’re paying for an extended warranty.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331508",
"author": "Karl",
"timestamp": "2011-02-12T21:35:08",
"content": "@ReneeYour argument is incomplete and bitter. As ReKlipz stated, consider what would occur if this practice was illegal — it’s lose, lose. Manufacturers lose because they have to produce both superior and inferior products, and consumers lose because both products cost more. Or manufacturers lose because they only produce the superior products, which are purchased by fewer consumers due to higher prices.And I should mention that a similar practice occurs with supermarket generics, OEM and aftermarket car parts, and many other situations.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331517",
"author": "Rob",
"timestamp": "2011-02-12T21:37:32",
"content": "Re: duping the “ignorant”. (And I’m using that term in the literal sense, not the sense that people ignorant of the definition think means “stupid” ;) )“Say this crippling process was somehow made illegal. It’s likely that this would only increase prices of everything, as this means they really need to use crappier components in their crappier product; which in turn means needing to source yet another part, have yet another assembly process, etc.”Wait, products would cost _more_ because of using crappier parts? If you make your low end product worse than your high end product by spending extra on crappifying it, I think you’re doing it wrong. You’re supposed to spend the extra on finding better components (in lower quantities, perhaps) and designs for the nicer model, no? You know, justifying the extra cost of the high end model. Not breaking the beater . . .I think this is (one of) the lesson(s) that bit GM in the butt in the 70s and early 80s, when they shared just about everything across their entire line of cars, and tried to sell a Chevy Citation as a Cadillac Cimarron by just adding a “badge upgrade”. People figured it out. That and the quality problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331518",
"author": "ReKlipz",
"timestamp": "2011-02-12T21:38:04",
"content": "@Renee“What if I don’t have the time to investigate, reverse engineer and hack something? That’s not even including the amount of time it would take to learn all of the prerequisites necessary for hacking something.What if I just want to relax from my busy life and listen to some music?”Then, as you so conveniently exemplified, you pay the premium for the convenience of not having to do your research, to the tune of $150 CAD in this case. Simple as pie.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331522",
"author": "ReKlipz",
"timestamp": "2011-02-12T21:44:31",
"content": "@Rob“Wait, products would cost _more_ because of using crappier parts? If you make your low end product worse than your high end product by spending extra on crappifying it, I think you’re doing it wrong. You’re supposed to spend the extra on finding better components (in lower quantities, perhaps) and designs for the nicer model, no? You know, justifying the extra cost of the high end model. Not breaking the beater . . .”But that’s not how manufacturers work. As the article mentioned, it’s usually more of a crippling process rather than a enhancing one. It’s rather doubtful that a single law would change hundreds of thousands of tried and true business models.The reason it would be more expensive has nothing to do with the fact that the product is made with better or worse parts. It’s due to the fact that it’s made with _different_ parts, requiring more time and effort to produce the product.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331523",
"author": "Renee",
"timestamp": "2011-02-12T21:47:53",
"content": "Well, I was going to elaborate on that but I didn’t want one giant post.The problem with “premium” is that it’s an ill-defined term. Exactly how much is convenience worth?While that’s an open ended question I will say that FAR more businesses will treat premium as whatever they can get away with.They’re going to try and make the most amount of money as they can. That’s why they disable features, it’s easier than having two separate production lines.It also has the bonus effect of making people want to consume more. If a company took their high value product and sold it at the cost of their lower end product then they would lose business because satisfied customers would leave and never come back.If somebody actually did that they wouldn’t go out of business, they just wouldn’t make as much money as they wanted too.Because of that the premium you pay isn’t a reasonable calculation made to help you, it’s a calculation made to screw you over just enough that you come back for more and they make more money.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331524",
"author": "Cricri",
"timestamp": "2011-02-12T21:49:11",
"content": "Wow, do I see a tornado in a teapot? It’s fair enough that manufacturers have versions for low end and a high end markets to appeal to every consumer. The low end version is cheaper, so what are people complaining about? If you can “upgrade” to the expensive high end version as easily as that, I’d like EVERY manufacturer to take the same approach so I can get high end capability cheaply in all my purchases!Anyway, this is what a hack should be: take an off the shelf product and make it better with minimal effort/tools, so 2 thumbs up from me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331526",
"author": "Jimmy",
"timestamp": "2011-02-12T21:52:53",
"content": "I’m glad companies offer both “premium” and “value” products. I’d like those “value” products to share DNA with the “premium” line, so I know that there’s a big incentive for them to work the engineering kinks out. If that means “crippled” products, that’s fine with me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331528",
"author": "Karl",
"timestamp": "2011-02-12T21:55:54",
"content": "I just performed this hack in 10 minutes.I did a side-by-side test and it does appear to improve sound quality. Disclaimer: I have hearing loss in one ear.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331529",
"author": "Jason",
"timestamp": "2011-02-12T21:56:22",
"content": "I have these headphones and I did this “mod” last year. The audio was very harsh and slightly distorted so I put the foam back in.I can confirm that the bass was MUCH more powerful, though, but made the audio unbalanced. I probably could have worked up an EQ setting specifically for the headphones, but I wanted to be able to take my headphones anywhere and not worry about the sound quality.I even did testing with the foam removed from only one cup, and it truly was worse.I’m sure the replacement parts are the same, but it’s extremely common for parts that fail burn in tests to just be repackaged as a lower end product line, which is what I’m assuming is the case with 555 vs. 595.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331535",
"author": "Cricri",
"timestamp": "2011-02-12T22:03:18",
"content": "@JasonWow, somebody who actually did the very hack and provide feedback, very informative, thanks. And good point about high end parts that fail quality check being used in lower end products, just like many chip manufacturers do.So sometimes, you DO get what you pay for :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331541",
"author": "ReKlipz",
"timestamp": "2011-02-12T22:14:19",
"content": "@Renee“While that’s an open ended question I will say that FAR more businesses will treat premium as whatever they can get away with.They’re going to try and make the most amount of money as they can. That’s why they disable features, it’s easier than having two separate production lines.”If you don’t like a businesses practices, don’t support them (that is, at it’s most basic, accomplished by not buying their products). No one is forcing you one way or another, the choice is yours.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331542",
"author": "Standard Mischief",
"timestamp": "2011-02-12T22:15:22",
"content": "Things like this are always a cool hack. I might note Jeep gas tanks on certain models that can be upgraded to hold an extra 10 gallons merely by shorting the gas fill tube as another example.In regards to the original hack, I don’t think the manufacture is being unfair nor unethical. What crosses the line is when the manufacture lobbies the government into creating legislation that protects their crappy business model.1) the ridiculous 3 year wait to see if some bureaucrat from the library of Congress will (temporarily even) grant you the consumer the right to modify your iPhone. (rights are temporary? and who owns the phone?)2) Tracfone getting the government to arrest people who buy their loss-leader phones, wipe the programing, and use them on another service.3) fucking-Sony suing and trying to make someone a felon over reverse engineering their gaming system.(You have to ask the question how many Sony employees went to jail and became felons for life after they decided to install root-kits on thousands upon thousands of their customer’s PCs without permission.)Now, if Sennheiser had decided to sue people for buying their headphones wholesale, modifying them, and then reselling the enhanced headphones with full disclosure of the mod while undercutting prices at an “authorized retailer”, of course I’d be up in arms.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331545",
"author": "ReKlipz",
"timestamp": "2011-02-12T22:19:31",
"content": "@JasonIn the writeup there is a photo of a replacement part which qualifies for both the 555 and the 595. This means that, at least the replacement parts, are of equal quality. I do agree, however, that it would be in Sennheiser’s interest to use a lower binned part for the 555 when produced on the line.However, your evidence is only anecdotal. We can’t conclude anything until we run some tests on your drivers, drivers from a sample of 595s, and drivers from a sample of 555s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331559",
"author": "D_",
"timestamp": "2011-02-12T22:52:27",
"content": "Save $150? Hell not much of the general public will not be spend a 150 for headphone, much less spending the higher amount. Enthusiasts of all sorts are those who generally fall “victim” here even those who believe they aren’t vulnerable.@josh while a store brand may be of the same Quality of a name brand today, that is subject to change tomorrow without notice. In that you brought up motor oil. I do use store brands in my clunkers that don’t owe me anything, but I use the name brands, in my daily drivers.In regards to the Rigol O’scopes, My guess is Rigol guarantees the more expensive scope to met certain specifications. Important to those who need scopes, In regards to the Linksys WRT54G, get over it out of the box it serves the needs of most , at an affordable price with a decent lifetime power on 24/7.Personally I pleased that there are those who can afford & willing to purchase new car and premium consumer goods. They are subsidizing my ability to purchase the same or similar goods at a cost I can afford.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331593",
"author": "xyz",
"timestamp": "2011-02-12T23:26:29",
"content": "I once spent 6 months working in a cleaning chemical warehouse that supplied industrial cleaning chemicals.The company had a value line and a premium line. Both lines where literally identical except for the label. Since the products where for industrial use the labelling was pretty basic on both lines. I think there where even some products where they had been lazy and kept the label layout identical just changed the name.We in the warehouse used to think this was pretty stupid, why would anybody pay for the premium line? So one day for some reason there was a sales rep in the warehouse and so naturally we asked him about it. He told us about this customer he had. He was a good customer that had spent a lot of money there year after year. The rep decided to tell the customer the value line was identical to the premium line and he could switch and save money. The customer just would not have it. His company would not cut corners and use cheap products, end of story.The customer owned the company as well. He was literally spending tens of thousands of pounds he didn’t need to every year because he didn’t like the thought of his company using cheap products even though he knew the cheap products where identical to the expensive ones.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331603",
"author": "Renee",
"timestamp": "2011-02-12T23:46:06",
"content": "That’s a good example of value attribution. Though that’s just more evidence of advertising and social engineering pushing people into equating money and value.@ReKlipzI do refuse to do buisness as a form of protest. However almost everyone does these practices and it can be hard to avoid.I figured that instead we should just amend capitalism in favor of a more equatable one.It’s not a wild idea. I mean I don’t think people out there like monopolies or anything. That’s one of the big reasons why I love the philosophy of Open Source.If you want something prefabricated you pay a reasonable price for it and if you have the motivation to DIY then they provide everything you need.I didn’t really expect there to be so many free-market capitalists on HAD.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331606",
"author": "MrX",
"timestamp": "2011-02-12T23:52:36",
"content": "I own a different model of these low-end Sennheiser headphones. I believe the foam is there for other purpose than to distort the sound.. That sounds quite stupid and unreasonable.Do manufacturers limit hardware clocks? YES. Do they limit software functionality? YES. Do they deliberately make their products distort sound?? It really seems unreasonable to me and if I ever find out it is true I’ll stop considering Sennheiser a good brand ever again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331611",
"author": "Johan Winäs",
"timestamp": "2011-02-13T00:00:37",
"content": "Turns out that the price difference between the 555 and the 595 is about $15 here in Sweden.. 1200SEK ($175) for the 555 and 1300SEK ($190) for the 595.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331612",
"author": "rasz",
"timestamp": "2011-02-13T00:00:38",
"content": "Regarding a fallacy that crippled parts didnt pass some mythical test. It is simply NOT TRUE.AMD doesnt test every single CPU/GPU. Neither does Rigol or Sennheiser. No one “burns in” their product for the COTS market. It is easy to believe in such tests if you are unfamiliar with manufacturing industry.Reality is quite different. Testing costs, Testing means bottleneck on the production line, it means added cost, it means having to support multiple quality levels on same line. Its SLOW. In reality production process is optimized to reach set quality level, and later on products are crippled according to the demand. If the demand is only for the lower quality, or there already is a sufficient stock of high quality product in storage production line is set to ‘less quality’ mode to lower cost or speed it up (worse components, less strict timing, omitting some manufacturing steps).I repeat – there is no magical testing that determines product grade. Product grade is set as “not worse than” when the production line for a new batch starts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331628",
"author": "anonymous",
"timestamp": "2011-02-13T00:16:27",
"content": "I’m pretty sure this will get the 555 to reach the performance of the 595. I don’t have either so I could be wrong, however I do know a bit about audio. The 595 is supposed to make it down below 10hz, the 555 barely makes it below 20 according to specs (if you trust them). I can see how the foam COULD effect high frequency response, but it is unlikely because the foam is on the wrong side of the speaker, to significantly impede HF response the foam would have to be in the way between the driver and your ear. Also, dampening material (like foam) is actually used inside the enclosure of high end speakers to extend the bass response lower. in addition to all this the foam should keep our a bit of background noise since those are open cans. What you should end up with is headphones that are better in noisy areas, might have slightly better bass response and no different high frequency response. Not speakers that have poorer HF and LF response. The drivers may be the same but some other aspect of the 595s must be far superior. By the way I would LOVE to hear from someone who has done this mod on his 555s and also own the 595s, as well as seeing a technical comparison of the sound from modded 555s and stock 595s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331629",
"author": "Hirudinea",
"timestamp": "2011-02-13T00:16:34",
"content": "I just wish there was a site that showed me what products are crippled and how to uncripple them, now that would be a way to get your moneys worth.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331640",
"author": "Tom",
"timestamp": "2011-02-13T00:36:32",
"content": "I’m quite certain that the foam actually improves sound quality in this case:The foam acts as an echo canceller. It absorbs sound waves and turns them into heat instead of reflecting them.These reflections have a time-lag or phase difference compared to the direct sound from the headphone drivers, and they are generally unwanted.No, I think you are WRONG with calling this a hack to improve sound quality.Please do investigate this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331662",
"author": "biozz",
"timestamp": "2011-02-13T01:10:44",
"content": "god bless america!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331667",
"author": "GameboyRMH",
"timestamp": "2011-02-13T01:24:09",
"content": "Wow, regardless of anyone’s experiences with the sound quality before and after the hack, from the source article it’s clear that the only difference between the two is the addition of the foam in the “low-end” model.I don’t think I’ll be buying from Sennheiser again…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331686",
"author": "Garbz",
"timestamp": "2011-02-13T01:52:59",
"content": "@raszYour comments are right in the general manufacturing industry but do not make sense in terms of chip fabrication. While in general it may be perfectly true that chips are sold based on demand at a price / performance point, they ARE all tested.Your typical manufacturing plant will test a small subset of devices, your typical metal refinery will test one piece out of every heat number, however what these processes have in common is consistency.Microprocessors on the other hand are manufactured with multiple units on a silicon wafer. The manufacturing is imperfect and faults are unpredictable. What is known is that there is a yield of good circuits you’ll get from your wafer. The yield is not insignificant either, we’re not talking 99%, we’re talking low 90s. If each and every chip weren’t tested there would be a percentage of dead on arrival chips in the marketplace.That said you’re assuming testing isn’t part of manufacturing. There isn’t some person individually testing these, the simply is a machine bolted to the end of the production line. PCB manufacturers do the same thing, their machine has thousands of tiny needles which come down and make electrical contact with every pad and via and each circuit integrity is checked before it’s shipped out of the door.This kind of testing is fast and inexpensive, but you’d be crazy to think that it doesn’t happen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331704",
"author": "Drew",
"timestamp": "2011-02-13T02:25:18",
"content": "One of my housemates has the 555s, he’s pretty happy to hear about this. Thanks, Hackaday!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331708",
"author": "therian",
"timestamp": "2011-02-13T02:29:35",
"content": "I think this hack is misleading. It just dont make any scene that audio company will deliberately lower sound quality. Quality is everything for such companies it their name and reason why people pay extra for their brand, they cant afford to lose their name status by releasing bad products",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331718",
"author": "deyjavont",
"timestamp": "2011-02-13T02:37:38",
"content": "@raszI am a quality manager at a company that makes high end consumer products. I can assure you that every function of our products is tested, as I oversee these tests everyday. Our PCBs are tested on a bed-of-nails. The final units are tested for functionality and quality checked before they are boxed up. PCBs that fail the bed-of-nails test are either downgraded, or scrapped (depending on the failure.)Before boxing the products, the firmware is downgraded to what the consumer is purchasing. We sell a range of products with a range of pricing, but all have the same PCB installed.It costs our company more to sell a lower end model than the higher end model. We still make money off the low end model, but our margins are higher for the high end.We don’t have the time or resources to make separate PCBs, cases, or firmware. It is all the same product, downgraded to what the customer is requesting. If he wants the extra features, he will pay the difference and we will give him a code to unlock those features.It actually benefits our customers because doing separate PCB runs is more expensive than one long run.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331720",
"author": "biozz",
"timestamp": "2011-02-13T02:38:44",
"content": "@therianin a perfect world where everyone was trustworthy than this would not make seanceunfortunately we live in a money driven world where most company’s are trying to make a dollar you have to pay for the privilege to have good sound quality",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331729",
"author": "therian",
"timestamp": "2011-02-13T02:53:29",
"content": "@biozz I think you don’t understand the difference between crippling features and quality. Product with less features do not affect company reputation unlike bad quality product.When you buy knife from well know company even if it is lowest model knife you expect it to be sharp and strong just with out leather case or titanium handle like high end models, if it brakes or get dull quickly company will loose you and yours friends as potential customers so it make no economical sense for company to cripple quality. Even greedy Apple dont cripple quality but features",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331730",
"author": "Tachikoma",
"timestamp": "2011-02-13T02:57:02",
"content": "I think this kind of practice is dishonest; it reveals the true colours of the manufacturer’s product “quality” – which basically implies same shit, different stink. Yes it is widely practised, yes manufacturers should be able to do whatever they want with their products. But at the end of the day, duping customers like this will reflect badly on them. Hacks like these is well deserved, and I hope this will hurt their profit margin in the “high-end” product segment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331733",
"author": "therian",
"timestamp": "2011-02-13T02:59:50",
"content": "@Hirudinea”I just wish there was a site that showed me what products are crippled and how to uncripple them, now that would be a way to get your moneys worth.”you have a 1 000 000 $ idea",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331743",
"author": "Haku",
"timestamp": "2011-02-13T03:18:37",
"content": "I’d like to see the results of a double blind test of this mod because audio is a very subjective thing, it’s not like the Lynksys or Rigol mods where the differences afterwards are plainly obvious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331747",
"author": "Stevie",
"timestamp": "2011-02-13T03:31:59",
"content": "I agree with therian. There’s a difference between crippling features and crippling quality and therian explains it well.In this case, there seems to be some real protest as to the accuracy of the story. I’m not convinced that the foam is there to cripple the sound quality. More likely that the design of these ‘phones or the material used for the housing is somehow not up to the quality of the higher end model and therefore requires the foam to catch stray (bad) sounds.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331798",
"author": "UltraApple",
"timestamp": "2011-02-13T04:24:15",
"content": "My guess is that for the higher priced 595 they select higher grade drivers that physically look the same. With the 555 they take the grade b drivers and slap some foam in there to ensure that if you do a side by side listening test the average person will notice the “better” quality sound on the 595. As far as the replacement part I would also guess that it costs too much to maintain two different inventories of parts so you get the “better” driver if its replaced. On the other hand having worked for a major unnamed electronics test equipment company (I live in seattle you should be able to guess) its just as likely or ever more likely that they are the EXACT same headphones just with foam added. At the end of the day you didn’t pay for the better sound quality and you were probably very happy with them till now. So I would rip the foam out and enjoy the better sound as measured by the seat of your paints.Does this somehow breach the DMCA? I mean its not much different than switching a few bits here and there to unlock the Deluxe version of software right? I little peace of foam vs. nibble here and byte there…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331814",
"author": "alxy",
"timestamp": "2011-02-13T04:51:16",
"content": "It may also be the case that the headphones with the foam was manufactured before the headphones without. And at some point it was deemed the foam was not adding any value or significant sound improvement, so they removed it for all models after a certain date.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331824",
"author": "Slarg",
"timestamp": "2011-02-13T05:24:21",
"content": "It’s also worth mentioning that though the driver is the same, the rest of the headset is very different.The headband and ear cushions are leather on the 595, the outside metal mesh is very different between the two models. (affecting how the air moves in and out of the ear cup.)I think the mesh is the key point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331860",
"author": "potat0",
"timestamp": "2011-02-13T06:24:50",
"content": "Kinda true, even for things like graphics cards and motherboards but then, I don’t _fully_ believe than Sennheiser would put the foam there just to cripple it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331868",
"author": "Digital",
"timestamp": "2011-02-13T06:43:06",
"content": "@kempI always check the boards of the things I buy. For example, the last mainboard I bought (forget the brand and don’t want to open the case or download any software to check), I added 2 usb lines and a sata line because I wasn’t afraid to solder the board.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.656003
|
||
https://hackaday.com/2011/02/12/model-car-additions-make-us-hear-knight-rider-theme/
|
Model Car Additions Make Us Hear Knight Rider Theme
|
Mike Szczys
|
[
"Toy Hacks"
] |
[
"16F628",
"h-bridge",
"knight rider",
"l293",
"pic"
] |
This collection of model vehicle hacks
adds obstacle avoidance in an attempt to make them autonomous. At the front end you’ll find two PCBs which use IR approximation to monitor the road ahead. We’re not familiar with this particular use of these IR receivers (TSOP1738) which we’re used to seeing in
remote control receiver applications
but if recent posts are any indication we think you’ll enjoy the use of a 555 timer on each of those boards.
The rest of the hardware is pretty common, a PIC 16F628 does the thinking while an L293D h-bridge drives the motors. Alas, we didn’t find a video, or even a description of the finished project. But there are full schematics, board layout pictures, and the code for both this vehicle and a second Tank version.
[Thanks Pieter]
| 5
| 5
|
[
{
"comment_id": "331433",
"author": "Steve",
"timestamp": "2011-02-12T19:39:21",
"content": "A link to the model vehicle hacks would be nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331439",
"author": "Foxdie",
"timestamp": "2011-02-12T19:46:11",
"content": "Woo! A 255 Computer Command <3I've got one of these, but its steering motor is worn out, as is the gearbox at the back. I want to swap these for servos (full rotation at the back) and replace the control unit with an Arduino programmed to simulate the 255 Computer Commands original programming as closely as possible :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331442",
"author": "Haku",
"timestamp": "2011-02-12T19:59:12",
"content": "Missing link to the cars:http://en.elektronicastynus.be/projects/33/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331446",
"author": "Haku",
"timestamp": "2011-02-12T20:03:19",
"content": "TSOP1738’s are great for barrier sensors & beam break ‘tripwire’ applications; you feed a 38khz square wave signal into an IR LED and it’ll trigger the TSOP1738. But during my testing I found the TSOP1738 wouldn’t continually put it’s output to low when a steady 38khz signal is fed into it, so I had to pulse the 38khz signal to the LED.You can buy pre-made collision detection modules like the one used in the car which use the same principal;http://cgi.ebay.com/270675884639but making your own is a nice way of learning how to deal with IR LEDs, TSOP1738 & 555 timers (or a microcontroller with a 38khz PWM output).A video camera capable of seeing IR light is very useful when tinkering with this stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "334301",
"author": "Spc 4",
"timestamp": "2011-02-16T01:30:08",
"content": "Thank you for the link.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.698303
|
||
https://hackaday.com/2011/02/12/sms-controlled-irrigation/
|
SMS Controlled Irrigation
|
Mike Szczys
|
[
"Cellphone Hacks",
"home hacks"
] |
[
"arduino",
"irrigation",
"sms",
"text message",
"watering"
] |
[Mhkabir] built
an irrigation system that communicates by text message
. The concept is simple, sending a text message to the system will cause it to switch on the water pump.
Many times we see
text message manipulation via the Internet
, or
using a GSM module
. But in this case an inexpensive cellphone is used as the communication interface. The vibration motor has been removed and those connections are monitored to signal incoming messages. Wire leads were soldered to the keypad contacts which allow an Arduino to send out text messages when there is a problem with watering. This isn’t an iron-clad system, as any incoming message will trigger the system and outgoing messages are limited to saved drafts. But a bit of creative programming and we’re sure more functionality could be squeezed out of this hardware.
| 10
| 10
|
[
{
"comment_id": "331397",
"author": "jon brod",
"timestamp": "2011-02-12T18:40:22",
"content": "hard to do when we just killed off the arduino in another post!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331398",
"author": "Peter",
"timestamp": "2011-02-12T18:44:22",
"content": "So when you get those pesky spam text messages your plants get over watered?Personally I think a wireless web based controller is a better option. Sms stuff tends to end in tears.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331403",
"author": "Nate",
"timestamp": "2011-02-12T19:17:14",
"content": "With a project that I’ll be doing i will use a phone but connect to the serial and use at codes like the gsm module. It seems much easier if you can find a phone that has a serial connection. But nonetheless, it’s a cool project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331407",
"author": "YaBa",
"timestamp": "2011-02-12T19:35:33",
"content": "@Peter:A good software only allows valid and pre-defined sms codes. spam all you like…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331431",
"author": "Abbott",
"timestamp": "2011-02-12T19:39:01",
"content": "There was a linking awhile back about using a $25 GPRS/GSM modem with an arduino.http://hackaday.com/2010/10/18/cheap-and-easy-sms-via-gsm-for-your-mcu/The modem works on the AT&T network, I just need to get a go-phone to use it on its own (I used my SIM card from my phone). A note, though: If you do use a go-phone SIM, activate the SIM ONLY with the end device you plan on using. Usually the SIMs become device locked for a certain time period following activation.With that in mind, one can ditch the ringer motor method and make things a little more creatively. For instance, you could send a text with the message “Set water @ 5:00PM”, and you could update an automated timer setup. Pretty neat stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331487",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-12T20:56:35",
"content": "If the system can be activated without authentication, it is a poorly designed system. Even worse if it is activated by any incoming message.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331634",
"author": "Andrew",
"timestamp": "2011-02-13T00:25:05",
"content": "This is a very poor design. An old Nokia will expose a simple serial interface for sending and receiving SMS. It is trivial to read and parse SMS and act on only valid messages. (I know this because I’ve done it).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332043",
"author": "Ragnar",
"timestamp": "2011-02-13T13:28:46",
"content": "I see this more as a proof of concept, with certain (already mentioned) security features to add as needed. Still I think the other way around is better: automate the watering (with capacitive sensors, or timers when drip-irrigating) and send out a SMS, if something goes wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332061",
"author": "Ben",
"timestamp": "2011-02-13T14:48:41",
"content": "SMS systems always make me wonder if it is really worth it. You have to pay to get a phone on the GSM network (in my area, at least $10 per month) and that seems like a lot to be able to water a plant from anywhere you get cellphone reception.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332914",
"author": "Metiz",
"timestamp": "2011-02-14T14:52:07",
"content": "Why not use phone calls to trigger the system instead of text messages. Then you don’t have to worry avout annoying texts from your provider. just put in a new sim card and you’re in business.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.743853
|
||
https://hackaday.com/2011/02/12/diy-pic-development-board-and-web-server/
|
DIY PIC Development Board And Web Server
|
Mike Nathan
|
[
"hardware",
"Microcontrollers"
] |
[
"pcb",
"pic",
"web server"
] |
Inspired by a project featured here on Hack-a-Day, [arthurb]
bought himself a PIC 24F and started experimenting
once he learned the ins and outs of programming the chip. Using a breadboard and a nest of wires was fine for his first few projects, but as he advanced, he began to feel the need for a full-fledged development board. With a list of required features in mind he got to work, constructing a well thought out board as well as a handful of expansion boards that can be used for various other projects. His main development board includes Ethernet connectivity for use with his web server software, the ability to utilize an SD card for storage, and a USB port for programming. His expansion boards include a temperature sensor, a numeric touchpad, as well as a video output module. Overall it is a pretty impressive build, considering he had never programmed a PIC before starting this project. All of his boards are thoroughly documented, and he has included plenty of source code in hopes of helping other individuals just starting out in PIC programming.
You can see his web server in action
here
, but keep in mind that it is running off a PIC, so please be courteous in your usage.
| 16
| 15
|
[
{
"comment_id": "331383",
"author": "MrX",
"timestamp": "2011-02-12T17:37:51",
"content": "That is quite nice. He could make more two of them and load balance the traffic between them. Power usage, including a 4 port switch would be pretty low.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331435",
"author": "pwnr",
"timestamp": "2011-02-12T19:41:52",
"content": "Nice project and might I add…It would be nice if HAD had a little warning that the linked articles go to instructables… on a phone reading hack a day rocks but not even worth the trouble to go to instructables…this and the other article…hmm I have time to read…click, oh instructables (quickly click esc back)Guess I need to memorize the instructabliss url :0Again. Nice job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331503",
"author": "D_",
"timestamp": "2011-02-12T21:28:32",
"content": "Having missed the bargain price on the web server in a box (nearly (match box in size) kit, I was hoping this would be an alternative. This project could be, but beyond my current capability to duplicate it. Although the project is well documented.I guess I just never will get it;@pwnr declares “nice job”, but goes on to comment as to how he wides HAD a link to instructables warning, I have to assume so one can arbitrarily avoid a HAD posting based on where a project is hosted, not the HAD description of the project. So if pwnr rejected this instructable, they wouldn’t have been able to begin, their comment with nice job, nor end it with nice job!Personally I don’t feel HAD should ever cater to the laziness, or ignorance of those who can’t tolerate instructables. I have the chrome, Firefox, and MSIE browsers. ALL show the location of a link in a field at the bottom of the browser window. Personally I’d rather see people post their projects to instructables, than in a forum. Although going so in blog works well, but it takes as much effort to do it well in a blog, as it does at instructables. Instructables has the advantage of exposure, why would one post a project to the web if they weren’t seeking exposure?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331505",
"author": "Arthur",
"timestamp": "2011-02-12T21:31:39",
"content": "Hi thanks for sharing my project,Just a note: i know how to program pics, it’s my first time with a pic24F , and with C.No need for a traffic balancer, if it stops working the problem it’s my bad internet connection. ( and I’m not at home right now, the board is alone there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331506",
"author": "svofski",
"timestamp": "2011-02-12T21:32:46",
"content": "I clicked the link as courteously as I could, but was refused connection anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331548",
"author": "jh",
"timestamp": "2011-02-12T22:23:34",
"content": "HAD affact… PIC server down.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331549",
"author": "jh",
"timestamp": "2011-02-12T22:24:04",
"content": "bah… spelling effect even",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331598",
"author": "boaka",
"timestamp": "2011-02-12T23:34:37",
"content": "probably it could solve, all of my space problems!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331607",
"author": "MrX",
"timestamp": "2011-02-12T23:55:07",
"content": "@Arthur Well.. if it is Internet bandwidth to blame, then you made a really good job there :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331758",
"author": "pwnr",
"timestamp": "2011-02-13T03:48:10",
"content": "@d_ think you missed the point of being on a phone browser…Either way think and do as you want, you obviously have an issue with people posting there .02c",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332059",
"author": "Kaboof",
"timestamp": "2011-02-13T14:35:56",
"content": "@UltraAppleperhaps something like that would do the job too:http://www.shockwatch.com/shipping_handling_monitors/impact_indicator/index.php",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332173",
"author": "pwnr",
"timestamp": "2011-02-13T19:08:04",
"content": "@mike Nathan (author) sweet man! Your next article states “instructables user (bruno)…”I like! And I think some of the instructables bashers might as well!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "332307",
"author": "Mike Nathan",
"timestamp": "2011-02-13T23:41:39",
"content": "@pwnr,I’m glad that you are happy with the Instructables disclaimer. I have been making more of an effort to make it clear to readers that a particular project is hosted there.Starting each post with “Instructables user so and so” will become trite after some time, so I will mix it up a bit. This means you might have to read my whole summary before clicking a link however.I suppose my question to you (and others) is, “What is the issue with Instructables?” I presume it is the fact that you have to click through a tutorial page by page or log in to see everything in one step. If that’s the case, I’m with you – it does get tedious after awhile.As an alternative, I highly recommend that anyone looking to post a new hack online do so in the“Project Logs” section of our forums– it’s a great place to do so!",
"parent_id": "332173",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "332180",
"author": "rasz",
"timestamp": "2011-02-13T19:22:30",
"content": "This is so good I wont even complain about instructables :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332254",
"author": "tim",
"timestamp": "2011-02-13T22:16:33",
"content": "To Download the PDF or View All Steps,Become a Pro Member",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "363256",
"author": "Pa55w0rD",
"timestamp": "2011-03-20T05:22:34",
"content": "he said hes doing from a phone which makes it 10x more annoying maybe 100x",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.796301
|
||
https://hackaday.com/2011/02/12/paper-accelerometers-for-pennies-in-the-works/
|
Paper Accelerometers For Pennies In The Works
|
Mike Szczys
|
[
"Parts"
] |
[
"accelerometer",
"carbon",
"paper",
"sensor",
"wheatstone bridge"
] |
Cheap paper accelerometers? Put us down for a dozen to start. They’re not quite ready for mass production yet but
it looks like they’re on the way
.
[
George Whitesides
] led a team to develop the new technology that uses simple manufacturing methods to produce the sensor seen above. Graphite and silver inks were screen printed onto heavy paper. The single limb sticking out from the body of the sensor is a separate piece of paper that bends the carbon area when force is applied. This changes the carbon’s resistance which is measured using a
Wheatstone bridge
constructed by gluing resistors to the device.
It sounds unsophisticated compared to most of the accelerometer modules we’re used to, but if you need a sensor that detects sudden motion this sounds like the perfect part. Now who wants to be the first person to replicate this in their basement?
[Thanks Fabien]
| 20
| 20
|
[
{
"comment_id": "331300",
"author": "strider_mt2k",
"timestamp": "2011-02-12T15:45:30",
"content": "I hope there isn’t a lot of trouble replicating these in a more domestic setting and that it isn’t too tricky.Because everyone knows ohm is where the art is.I’ll be here all weekend folks.Try the fish!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331318",
"author": "John",
"timestamp": "2011-02-12T15:58:43",
"content": "oy. That was horrible, strider! horrible and awesome.This seems like a flex gauge with one end cantilevered. While that’s a good idea, flex gauges are not pennies per. I wonder how they plan on getting this one cheaper? Simpler design, I guess.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331344",
"author": "fabien",
"timestamp": "2011-02-12T16:13:11",
"content": "I’ve already tryed replicating that, but I need a multimeter with better precision for the test. I’ll have to wait until monday evening !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331350",
"author": "Adam Outler",
"timestamp": "2011-02-12T16:26:37",
"content": "Sign me up for some… Thats awesome… Now of we could get some cheap paper GPS and cheap paper compasses to go along with it Id put an xbee on my cat, car, wife and everything else mobile in the house.. Then map out the place with one of those XBOX 3d mapper power drills covered in an earlier article and I’d be set up to sit at my computer and play The Sims in real life.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331357",
"author": "biozz",
"timestamp": "2011-02-12T16:33:20",
"content": "it only detects acceleration on one axis and no way to tell direction and over time of use it would degradei see it used in military applications like in smart missiles or other one time use devices but i would not put it in any of my projects where long term use is the key XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331378",
"author": "Scott",
"timestamp": "2011-02-12T17:28:53",
"content": "This looks like the beginning of any number of bad practical jokes (if not terrible puns). The real problem isn’t the circuit but the beam’s substrate, paper is notoriously finicky stuff – anisotropic, non-linear and hygroscopic. Calibrating one of these, much less a whole production run, would be a nightmare.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331438",
"author": "fabien",
"timestamp": "2011-02-12T19:45:33",
"content": "> i see it used in military applicationsyou certainly don’t know how seriously militaries take “quality insurance”, specially on things they designed to use only once.Scott : you can imagine that paper is only a prototype, but imagine the same thing with a plastic sheet. Many application don’t need precise calibration, automatic calibration can be possible (e.g. to detect the fall of somthing/someone, to count heartbeats or people using a stairway…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331440",
"author": "UltraApple",
"timestamp": "2011-02-12T19:48:17",
"content": "This could be very useful in the shipping industry. Imagine having a small sticker that you could scan and it would tell you what forces the package was subjected to. You could even track a fragile package on the ups site and it would update with where the package is and what forces. While as interesting as it wold be to see the data it still wouldn’t protect your package any more.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331473",
"author": "nave.notnilc",
"timestamp": "2011-02-12T20:39:10",
"content": "are there more details on it anywhere?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331493",
"author": "Oren Beck",
"timestamp": "2011-02-12T21:09:01",
"content": "We used to have the phrase “Good Enough” plus several variants.. as a lead- in for qualifiers of both positive and negative aspect. IIRC the first few generations of some audio crystal devices used Rochelle Salts as a Piezo medium. Despite it being an incredibly hygroscopic material that makes paper seem inert by comparison, it was more than “good enough” for cheap phonograph cartridge transducers and microphones in toys.The elegance of some things like a Toroid CT often belies how many steps it took to get from prototype number zero to a component used in many cheap PSU designs for that elegance. And from that- how we got from mechanical Gyro systems needing to be “caged” as a routine event, to MEMS sensors- and now these paper bases accel sensors.Look at Blood Sugar testers having gone from human eye optical reading to the newest *TWO* sensors on each strip designs.Paper accel sensors could work well with -anywhere a moving,cheap, disposable device needs to sense accel within the DOP these can produce.Which, is still a damned huge range of open ended questions as to ALL the variables of Cost, Accuracy, Drift, Lifetime Usability overall etc. Those are just to name a few non-trivial data items WrT these sensors that we’ve not even approached determining- yet.I was dropping questions here and there about sensors in Fab@Home type gear and I had been focused on sensors in the Fabber itself. Not on sensors in stuff we’d be Fabricating! These paper accel things may be a new level of “Disruptive Tech” at a component level.Part of my thoughts are to Open Source by post as Copyleft/Patent Poisoning every wild hare we get raised by articles like the original design. Though if any of us becomes a Gigazilionare etc from something born of Hackerdom?- hopefully they will repay the Karma somehow TO all of Hackerdom.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331547",
"author": "barry99705",
"timestamp": "2011-02-12T22:21:50",
"content": "Why would you need an accelerometer for a penny?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331558",
"author": "ups",
"timestamp": "2011-02-12T22:42:00",
"content": "@UltraAppleI work for UPS and trust me you dont want to know what kind of forces and stresses your packages are put under, and I dont think we would make that kind of information available even if we could. Do yourself a favor and package everything like you were going to kick it down the stairs, cause thats a good aproximation of what happens.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331627",
"author": "localroger",
"timestamp": "2011-02-13T00:15:17",
"content": "The sensor might cost pennies but the electronics to read the millivolt level output signal won’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331663",
"author": "biozz",
"timestamp": "2011-02-13T01:15:01",
"content": "@fabienyou apparently never worked with a military engineer“cheap and cheerful” is a phrase that they use quite a bit … if it works and its cheap there all over it … at least US militaryremember the JDAM missile GPS head recall?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331884",
"author": "Will",
"timestamp": "2011-02-13T07:22:20",
"content": "UltraApple,There are indicators available for packages that will change color if a certain force is applied. I’d imagine they are fairly cheap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331933",
"author": "Oren Beck",
"timestamp": "2011-02-13T09:03:17",
"content": "@Will:The various mechanical element or membrane/tube “frangible sensing/spill=position sensing” devices are priced accordingly to commodity volume levels for industrial duty. Simply put- a $10 Shock or Tilt stick on of the tube turns non-resettable red,costs $10 due to how few are made. Compared to a whole dollar store pedometer or calculator- or thermometer?Ok- there’s a Hacking challenge:> Hack those into a shock tattletale! A shock indicator for what “could be” ballpark $1 might be “less hassle” to design on budget with a single pennies Accel sensor like these paper ones.But,wait- there’s MORE, as shill pitchmen are fond of screaming. There are several “reasons” for electronic and mechanical accel/tilt sensors to both have distinctly different application niches.EMP is “not yet” a non-military concern outside of stuff that could see energy levels comparable to EMP specs. Like Food Irradiation or Medical Sterility by Radiation to list 2 off the top of my head. Paper sensor/electronics surviving those energy levels? questionable but? it shows that Hacks Va Industrial Design can be different universes indeed.After the CIA Dragonfly became known, several people in the picolight aircraft groups had the moment of “everything we thought we knew got disproved” almost like what these paper sensors will do when they become an item in catalogs. Or? printable by Fab gear..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332210",
"author": "pj",
"timestamp": "2011-02-13T20:24:05",
"content": "midi breath controller?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332916",
"author": "REW",
"timestamp": "2011-02-14T14:55:02",
"content": "To replicate this “at home”, try this….First cut a piece of paper as shown in the photo. Next take a pencil and draw a line from the left side onto the stick and back down onto the right side. Next blacken as much as you can of the left side with the pencil without coming near the right side. Same for the right side. The important area for the measurement is the place where the line goes up onto the “stick” and back.Next is the problem of attaching wires… How about punching a small hole in the contact area sticking through a small multicore wire, and putting some scotch tape on the other side?Next, measure the resistance. See if you can see it change if you bend the paper. Hopefully a normal multimeter will suffice. If so the cange is more than 1/1000, and say an arduino can easily measure the results!The trick to do this accurately is as follows. The device is connected between two pins. Put a capacitor on one of the pins. Take the value to be such that the RC time becomes about 1ms.Make both pins outputs, make both pins zero (now wait a little while. Say about 10 * 25ohms * your-capacitor-value), make the pin with the capacitor an input and enable its pin change interrupt, make the other pin high and clear a timer. Now about 1ms later, the pin change interrupt routine can register the value of the timer and you have a measure of the acceleration!!!!To make this three axis is easy too. Make two sticks on the long side of a rectangle. Make one on the short side. Next fold over the short side. Not where the stick starts but more on the rectangle. About 5mm on the rectangle should be enough. If you want, drop a blob of hotglue in the corner to keep the bend at 90 degrees. Next make a 5mm cut into the rectangle between the two sticks on the long side of the rectangle Next bend one of them at 90 degrees as well. Again drop some hotglue in the corner to fix it at 90 degrees. With some careful planning, you need only 4 connections to your arduino. The common pin can be the one with the capacitor, allowing you three axis accellerometry with only 4 pins.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333751",
"author": "REW",
"timestamp": "2011-02-15T12:12:22",
"content": "I made a drawing of the template…http://prive.bitwizard.nl/paper_accelerometer.pngYou can use a blob of bison-electro to glue the wires to the paper.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333869",
"author": "unxzst",
"timestamp": "2011-02-15T16:03:48",
"content": "REW,are you saying that any strip of conductive material on a flexible substrate will change its resistivity when subjected to stress? Or is there a mechanism between a conductive and non-conductive layers?I wonder if it is possible to do the same thing on a glass slide with some conductive inc. I will try this also with a metal (aluminum, gold or tantalum) sputtered or evaporated coating on a regular glass slide.If you would get in contact with me, perhaps we can work on this together.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.13496
|
||
https://hackaday.com/2011/02/11/pid-controlled-bradley-smoker-clone/
|
PID Controlled Bradley Smoker Clone
|
Mike Nathan
|
[
"cooking hacks",
"home hacks"
] |
[
"pic",
"pid",
"smoker"
] |
Bradley smokers are coveted for their ease of use, as they require very little interaction from the user once the hopper is loaded with wood pucks and the machine is powered on. The more robust models are quite pricey, so [Maukka] decided to
build his own
version of a Bradley smoker as an add on to his existing unit. He fabricated a smoke generator out of aluminum, including all of the components you would normally find in an automated smoker. Once the hopper is loaded with wood pucks, the smoker runs autonomously, shuffling new pucks onto the heating element, presumably at timed intervals. The main barrel of the smoker has a separate PIC-controlled heating element installed, and is connected to the smoke generator by an aluminum duct. This configuration allows [Maukka] to cold smoke items such as fish, nuts, and cheeses using the smoke generator by itself, while also permitting the smoking of meats at far higher temperatures when the main heating element is used. This is truly a fantastic build, and the cold smoker component is something I would love to have as an addition to my Weber bullet.
Be sure to explore his blog a bit to catch all of the build details, as they are separated into various posts.
[Thanks Hali Batsuiba]
| 21
| 20
|
[
{
"comment_id": "330552",
"author": "anon",
"timestamp": "2011-02-11T22:58:31",
"content": "Should insulate the tube.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330619",
"author": "vonskippy",
"timestamp": "2011-02-12T00:05:25",
"content": "What is the attraction of adding “smoke” to the things you ingest?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330621",
"author": "baobrien",
"timestamp": "2011-02-12T00:07:54",
"content": "@vonskippy Meat tends to taste friggen amazing when cooked with the smoke of certain types of wood.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330622",
"author": "anon",
"timestamp": "2011-02-12T00:08:35",
"content": "@vonskippyTrue BBQ style is low temperature and a slow cook. It’s meant for the cheap cuts of meat which need to be cooked in that manor. The smoke adds a ton of flavor, especially depending on the wood you use.My personal fav: 1/3 cherry, 1/3 apple, 1/3 oak or hickory soak in a mixture of water, apple juice/cider and a little whisky",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330626",
"author": "caleb",
"timestamp": "2011-02-12T00:15:20",
"content": "@vonskippysmoke preserves meat.mm bbq",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330662",
"author": "andrew",
"timestamp": "2011-02-12T01:03:43",
"content": "Very cool. I wish there was more information on the heating element: where’d he get it, how got does it get, controlled by pwm with ssr?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330708",
"author": "thermite1",
"timestamp": "2011-02-12T01:24:21",
"content": "PIC, not PID. I scoured his blog for info on control theory….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330726",
"author": "stormdog",
"timestamp": "2011-02-12T01:53:04",
"content": "Hmmm. Really really like this. Wish I could take on another project right now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330772",
"author": "Adam",
"timestamp": "2011-02-12T02:54:13",
"content": "I ran across a great if not entirely over designed smoker built buy a guy on a mailing list that I’m on. By the looks of it the guy’s a control engineer.http://s47.photobucket.com/albums/f163/johnplctech/Smokin/?start=all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330827",
"author": "adamziegler",
"timestamp": "2011-02-12T03:34:41",
"content": "@vonskippy… I always thought you were a dude.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330835",
"author": "adamziegler",
"timestamp": "2011-02-12T03:38:55",
"content": ":P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330841",
"author": "Willyshop",
"timestamp": "2011-02-12T03:44:40",
"content": "Don’t be so hard on skippy; he’s just confused. He thought they were adding “smoke”, when it is in fact delicious, quote free smoke that is being used!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330998",
"author": "Maukka",
"timestamp": "2011-02-12T06:02:54",
"content": "Cool. My contraption in Hackaday! @thermite1: temperature is PID controlled, smoke generator is PIC controlled.Version 2 is on the drawing board already. It will have temperature vs time setting (example: 2hrs low temp, 2hrs high temp, shut off when probe tells meat has reached desired temp ) and some other improvements like internet connection…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331156",
"author": "strider_mt2k",
"timestamp": "2011-02-12T11:42:48",
"content": "VERY nice!I’m a huge fan of mesquite, myself.Hmm, haven’t grilled in a while, and I DO have some beer…DING!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331195",
"author": "Stevie",
"timestamp": "2011-02-12T12:42:47",
"content": "Nice but would be more advanced if it used an Arduino",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331664",
"author": "John Lock",
"timestamp": "2011-02-13T01:19:22",
"content": "_Most_ aluminum contains chromium (NOT the chromium supplement from the health store). Typical exposure is through inhalation of particulate while machining or hot work but I wouldn’t smoke food anywhere near non-food grade aluminum.Signs of exposure are serious skin rash, “chrome” ulcers which heal very slowly, coughing, nose bleeds… Some reports of long term exposure are linked to “early senility”. Switch to food grade metals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "361131",
"author": "food butt",
"timestamp": "2011-03-17T17:26:30",
"content": "i read your page every day and i am working on a set of midi bass pedals.i have been picking over all the music and audio posts and i realized you only have to food posts.my inerfatkid says more food posts more smokers more turkey fires and bbq sorcery",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "386400",
"author": "maukka",
"timestamp": "2011-04-26T18:37:35",
"content": "Aluminium used in this project is alloy 3003. Same alloy is used in aluminium frying pans etc.“More advanced if it used an Arduino”? Not sure about that… Everything is homebuilt, based on Microchip PIC 18F2580 programmed with CCS C-compiler.Arduino is for people who wants to get something done quickly and without too big effortCurrent version under testing, need to post something about it soon, has wireless connection and is fully programmable (temperature vs time, smoke vs time etc.). Have been too busy in testing it (yummy!)…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4375132",
"author": "snowpup",
"timestamp": "2018-02-23T13:32:13",
"content": "Hey Maukka,Found your project, and I’m thinking of doing something similar.Been a while since any updates.How did V.2 go?Many thanks.",
"parent_id": "386400",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "509008",
"author": "Olli from Helsinki",
"timestamp": "2011-11-15T10:57:06",
"content": "“Maukka” sounds like a FINN to me and the “Hali Batsuiba” even moro so…. Good going anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "516744",
"author": "Gommista",
"timestamp": "2011-11-23T06:36:28",
"content": "Can you give the specs for the heating element?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.975504
|
||
https://hackaday.com/2011/02/11/led-dog-collar-christmas-edition/
|
LED Dog Collar, Christmas Edition
|
Caleb Kraft
|
[
"classic hacks",
"LED Hacks"
] |
[
"collar",
"dog",
"led"
] |
[Aaron] says in our comments that he also
made an LED dog collar
. This Christmas themed dog collar uses an ATTiny13a and a hand full of red and green LEDs (28?). While the animations aren’t as complex as the collar
we posted earlier today
, we though you might enjoy this one as well. From the description, we think that the LEDs simply fade back and forth between red and green. We think that [Aaron] did a great job. He has included the source code and schematic on his site, but sadly there’s no video of this collar in action.
| 11
| 10
|
[
{
"comment_id": "330507",
"author": "Aaron",
"timestamp": "2011-02-11T21:58:50",
"content": "How many of us are there, anyway?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330512",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T22:00:59",
"content": "@Aaron,I’m not sure, but I’ve been planning one too. I camp a lot and one of my dogs is black and loves to run off in the woods.",
"parent_id": "330507",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330529",
"author": "Erik Johnson",
"timestamp": "2011-02-11T22:39:49",
"content": "lol, I’ve been using a jogger’s/biker’s flashy clip just clipped to my dog since shes black and I can’t see her at night otherwise… Alas, I’ve also been panning on building an LED-studded collar!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330540",
"author": "tristan",
"timestamp": "2011-02-11T22:47:42",
"content": "bought something like that from a pet store few years back, but the thought of putting a µc on a dog is tantalizing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330561",
"author": "Aaron",
"timestamp": "2011-02-11T23:08:07",
"content": "Haha, thanks, yes, they fade in and out alternating green and red. Sadly the battery life is pretty short, only a few hours on 2 CR2032s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331635",
"author": "John",
"timestamp": "2011-02-13T00:25:31",
"content": "I was just thinking about this the other day…I currently use a flash light and was thinking, I should just put LEDs in his collar. Way to read my mind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332947",
"author": "Rich",
"timestamp": "2011-02-14T16:19:33",
"content": "Be careful with pets and those small cells! Those batteries can do horrible things to the insides of pets if swallowed!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336794",
"author": "walt",
"timestamp": "2011-02-18T17:26:35",
"content": "very cool way to keep your snoop safe. you may want to seal that thing up with some heat shrink or something just in case a batt or something falls off n’ your snoop tries to eat it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "344621",
"author": "jc",
"timestamp": "2011-02-28T18:11:46",
"content": "I finally found my old contest entry for the Microchip Start-Now contest from 2005. My idea was to use a micro for each LED, and make the collar scalable for varying size dogs. I never built it, but I did buy all the parts…http://www.tinymicros.com/wiki/Dog_Collar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "435864",
"author": "Gunnar",
"timestamp": "2011-08-16T12:29:44",
"content": "Like it. I’ll have to get a couple. The dogs go camping with us as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "895668",
"author": "Matt Johnson",
"timestamp": "2012-12-02T17:26:50",
"content": "Can the red/green led christmas collar be purchased any where?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.865003
|
||
https://hackaday.com/2011/02/11/the-plant-whisperer/
|
The Plant Whisperer
|
Caleb Kraft
|
[
"home hacks"
] |
[
"parallax",
"plant"
] |
[Jeff], fully acknowledging his inability to keep plants alive, has designed a system to help him out a little bit. The “
Plant Whisperer
” monitors water levels and notifies him if the plant needs attention. Actually, it notifies him either way. The plant whisperer uses real time text to speech to say one of several pre-programmed things, either proclaiming its happiness or requesting more water. He’s using a parallax propeller for the job as he says it is capable of handling the real time text to speech. We realize this is overkill, but we absolutely love it. The only improvement we would want would be to possibly use a pre-recorded voice for more clarity. You can see a video of it in action after the break.
[youtube=http://www.youtube.com/watch?v=-x9-SPLeg2A&w=470]
| 14
| 14
|
[
{
"comment_id": "330411",
"author": "Erik Johnson",
"timestamp": "2011-02-11T20:14:24",
"content": "Feed me, Seymour!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330415",
"author": "zool",
"timestamp": "2011-02-11T20:18:57",
"content": "*too wet*it’s the stephen hawking of plants",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330454",
"author": "foxy",
"timestamp": "2011-02-11T20:55:52",
"content": "What’s with every poster saying ‘after the break’? Is this supposed to be a show transcript?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330472",
"author": "dext3r",
"timestamp": "2011-02-11T21:21:52",
"content": "lol yeah, what break? did we go to commercial or something?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330479",
"author": "jeff-o",
"timestamp": "2011-02-11T21:32:12",
"content": "@Erik: I’ve got a Little Shop of Horrors reference programmed in, but oddly not that one. But it is, now! Thanks.Oh, and thanks Hack a Day for the nod!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330516",
"author": "MS3FGX",
"timestamp": "2011-02-11T22:06:21",
"content": "@foxy“After the break” refers to the page break. It just means that you have to click through to the full post to see it. Putting more content behind page breaks is a easy way to get people to spend more time on your site, and ideally, load more ads in their browsers.That said, I think it’s an annoying term myself. I don’t know why exactly, as it technically isn’t wrong, it’s just one of those things that bothers me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330519",
"author": "wosser",
"timestamp": "2011-02-11T22:10:29",
"content": "I love this idea. This plant is pretty lucky to have this much devotion lavished upon it.My only minor issue would be that the synth voice is almost completely incoherent in some of those samples, although that may be due to the common problems of uploading videos to the interwebs. I too think sampled voice samples would be better – even if it’s just a recording of a higher-quality synth voice – I mean why not? :)I must say that the design of the circuitry here is a work of art.Superb idea and great implementation!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330665",
"author": "davi",
"timestamp": "2011-02-12T01:04:33",
"content": "Very good for weed :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330820",
"author": "George Johnson",
"timestamp": "2011-02-12T03:27:02",
"content": "With my “black thumb of death” they’ll still die.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330860",
"author": "pwnr",
"timestamp": "2011-02-12T04:14:58",
"content": "Jeff. I hear/read plants and such actually are affected/enjoy being talked to. Surprised no one else has mentioned it but you might also reverse your logic and have the device also soothingly talk to the plant..just an idea/observation!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330896",
"author": "Amos",
"timestamp": "2011-02-12T05:13:01",
"content": "@MS3FGX yeah, it should really be “below the fold” :PSeriously, of all the butchering of the English language that goes on every day on HackaDay, /that’s/ what bothers you?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331139",
"author": "wosser",
"timestamp": "2011-02-12T11:11:01",
"content": "“Persuant to the intermission” perhaps?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331158",
"author": "strider_mt2k",
"timestamp": "2011-02-12T11:45:17",
"content": "“I am a hacked plant”Awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332969",
"author": "Erik",
"timestamp": "2011-02-14T17:01:46",
"content": "Great Idea, have you thought about adding a self-watering system for when your on vacation? Since it monitors the water level it’s only a matter of determining how much water to let in and developing a system to release that much water.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,278.919085
|
||
https://hackaday.com/2011/02/11/rfid-triggered-presentation-box/
|
RFID Triggered Presentation Box
|
Mike Nathan
|
[
"Misc Hacks"
] |
[
"arduino",
"art",
"rfid"
] |
[Lace] needed to build a “box project” for his college art class and figured he could spice things up a bit by adding some electronic components to the mix. His project, dubbed the ‘
Blasphemous Bible Box
‘ consists of a bible opened up the section of the book of Revelations that discusses the mark of the beast in an old cigar box. The box is normally locked, but has been programmed to unhook an internal latch when he passes the RFID chip embedded in his hand over it. The effect could have been achieved using a simpler circuit, but the enclosed Arduino seems to do the job decently enough. [Lace] has not mentioned if he has considered revising the box any, but a spring-loaded external latch secured with a magnetic lock would make for a nice effect if version 2 was ever built. Adding a servo to slowly open the box as well as including a speaker blaring Carmina Burana – O Fortuna upon opening would be pretty cool as well (hint, hint). We have video of the box in action after the break.
[youtube=http://www.youtube.com/watch?v=ECPo1hu4DZI&w=470]
| 12
| 12
|
[
{
"comment_id": "330372",
"author": "wosser",
"timestamp": "2011-02-11T19:27:58",
"content": "I like the way you casually say “RFID chip embedded in his hand” as if there’s nothing odd about that.It’s not like you can just go to the mall and get that done you know.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330388",
"author": "brad",
"timestamp": "2011-02-11T19:46:19",
"content": "^^^^ that was my first thought too! who does that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330401",
"author": "YaBa",
"timestamp": "2011-02-11T20:00:46",
"content": "@bradMy friend, who is a vet, does it everyday……to dogs :D :D :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330402",
"author": "JD",
"timestamp": "2011-02-11T20:01:51",
"content": "Is this the same guy who embedded one in his hand to start his car?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330427",
"author": "roswellaliens",
"timestamp": "2011-02-11T20:32:20",
"content": "heh… DIY RFID implants for the brave :-ONeedless to say the risks are fairly high (such as deep tissue infections, migration of the chip into contact with a nerve, pain for weeks etc) but they are pretty useful for bulletproof authentication if the chip has built-in crypto, challenge/response, etc.Using the cheap 125K chips isn’t advisable IMHO as they are far too easy to clone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330456",
"author": "wosser",
"timestamp": "2011-02-11T20:59:51",
"content": "I’d be worried that computer mice in the future might have circuitry added that can authenticate it’s users via hand-based RFID instead of typing in a password. That would be open to all sorts of nefarious activity unless someone sorts out all the problems with clonability! Run for the hills!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330458",
"author": "psuedonymous",
"timestamp": "2011-02-11T21:04:24",
"content": "@wosserAs YaBa intimates, a sympathetic vet has all the equipment needed for inserting a basic tag. Alternately, you can order from ebay the kit required (the tiny RFID tag itself, and a large gauge needle and syringe).Self-RFID implantation (assuming reasonable precaution such as sterilising the tag) is abut as dangerous as any self-injection, and millions of type-1 diabetics handle that perfectly fine every day.I’d be somewhat wary of using it for anything that requires even vaguely secure encryption. Passive RFID is infamous for it’s total lack of security, and any active tags with proper handshaking (last time I checked, admittedly some months ago) were too large for comfortable long-term subdermal implanting.I’d love to hear if something new (and actually available for purchase) has come along though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330600",
"author": "Julie",
"timestamp": "2011-02-11T23:50:45",
"content": "Lol yeah Lace DOES have the chip in his hand, and he had it implanted at a tattoo parlor with sterile instruments and whatnot :3He’s awesome. I’m so excited his project was posted here!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330603",
"author": "Lace",
"timestamp": "2011-02-11T23:52:08",
"content": "Oh my gosh. I never expected that submission to be used. :D@wosserFunny you mention that, I went to a tattoo and body mod parlor to have the implant done ‘professionally’. :) The video and documentation are on separate blog posts on the site. (http://izationlabs.com/category/tech/rfid-tech/)In general, I would have to disagree with the risks being high. [psuedonymous] hit the nail on the head. I had no personal problems, and nearly everyone else who has done it has had an easy go of it as well, we really did our homework. Check out Amal Graafstra’s RFID forums for more info, you’d be surprised how many people have done it!Definitely wouldn’t use this for totally secure situations, however. My tag is easily clonable, and just like standard keyed locks, it would only take someone knowledgeable to copy the ‘key’. I just take heart in knowing that you can’t drag me to the local hardware store and ask the clerk to make a copy of my implant. :) It would take someone with some hacking skills (cough, like a lot of us who follow hackaday) to do the same with the tag.Cheers!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330756",
"author": "Duke",
"timestamp": "2011-02-12T02:35:02",
"content": "RFID implants in hands for secure authentication will lead only to one thing: Chopped of hands. (http://news.bbc.co.uk/2/hi/asia-pacific/4396831.stm)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331160",
"author": "strider_mt2k",
"timestamp": "2011-02-12T11:47:22",
"content": "Oh, well as long as it was done at a tattoo parlor…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "336797",
"author": "walt",
"timestamp": "2011-02-18T17:29:11",
"content": "all bibles should have locks on them until mankind figures out how to read them.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.181996
|
||
https://hackaday.com/2011/02/11/thermic-lance-made-from-spaghetti/
|
Thermic Lance Made From Spaghetti
|
Mike Nathan
|
[
"Misc Hacks"
] |
[
"destruction",
"fire",
"food"
] |
[Frogz] sent in a
video he found
of a thermic lance constructed from spaghetti. If you are not familiar, thermic lances are typically comprised of an iron tube filled with iron rods, which are then burned using highly pressurized oxygen. This lance however, was built by tightly wrapping a bundle of spaghetti in aluminum foil and attaching it to an oxygen tank. While thermic lances are commonly used in heavy construction where thick steel needs to be cut, [latexiron] and his friends use theirs to cut apart a chair. While we don’t necessarily condone drunken destruction of innocent patio furniture, we can’t help but watch this video again and again in amazement of the incredibly novel use of everyday pasta. You too can join in the drunken revelry after the jump. If food-based cutting torches are your thing, be sure to check out this
bacon lance
as well.
| 38
| 35
|
[
{
"comment_id": "330305",
"author": "qwerty",
"timestamp": "2011-02-11T18:05:35",
"content": "That’s nothing. Back in my day we made Jedi lightsabers using macaroni!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330306",
"author": "Phil",
"timestamp": "2011-02-11T18:06:44",
"content": "That was fantastic!! I was in absolute hysterics while watching it!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330326",
"author": "jim",
"timestamp": "2011-02-11T18:39:25",
"content": "Now make one with sparklers…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5810209",
"author": "John Dixon II",
"timestamp": "2019-01-20T06:58:25",
"content": "SPARKLERS ARE HIGHLY EXPLOSIVE",
"parent_id": "330326",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330333",
"author": "Erik Johnson",
"timestamp": "2011-02-11T18:49:54",
"content": "Haha, nice. The camera guys must be severely obese, his breathing is so loud!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330352",
"author": "Hal Hockersmith",
"timestamp": "2011-02-11T19:05:00",
"content": "I just started taking a welding class and we are doing safety and torch cutting. While very interesting (oxygen and spaghetti who knew) I have one serious reservation about this video. WHY is he laying that bottle on its side? Good safety says you should always keep ANY compressed bottle upright.Also wouldn’t foil tape be better then gaffers?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2751277",
"author": "murdock",
"timestamp": "2015-10-13T00:41:49",
"content": "I think on very uneven ground it is best to lay a compressed gas bottle on it’s side so it can’t fall.",
"parent_id": "330352",
"depth": 2,
"replies": []
},
{
"comment_id": "2758131",
"author": "sdffs",
"timestamp": "2015-10-18T01:00:18",
"content": "It only matters with acy tanks, and tanks with liquid (propane, CO2.) Oxygen tanks can be stored in any orientation.",
"parent_id": "330352",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330366",
"author": "Robert",
"timestamp": "2011-02-11T19:23:20",
"content": "LOL! This seems like a fun bunch of people! I know was laughing throughout the whole video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330369",
"author": "ApprenticeWizard",
"timestamp": "2011-02-11T19:25:04",
"content": "Fascinating. Send this to MythBusters. First, because I want confirmation before I get out the angel hair. Second, I imagine Jamie and Adam playing with a thermic lance and there is nothing but good and destruction.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330408",
"author": "Squirrel",
"timestamp": "2011-02-11T20:11:42",
"content": "This looks like… A Spaghetti Incident",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330413",
"author": "zool",
"timestamp": "2011-02-11T20:14:53",
"content": "cook meatballs with it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330433",
"author": "Griggy",
"timestamp": "2011-02-11T20:34:47",
"content": "@Erik Johnson: He’s laughing and drunk. That would explain methinks :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330447",
"author": "Gdogg",
"timestamp": "2011-02-11T20:42:53",
"content": "Cool.. Very hard to watch over the soudn of the camera man’s breathing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330463",
"author": "Fallen",
"timestamp": "2011-02-11T21:08:39",
"content": "Pure win. The bacon link in youtube was better though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330466",
"author": "chippy",
"timestamp": "2011-02-11T21:13:28",
"content": "@Hockersmith“WHY is he laying that bottle on its side?”I’m guessing it’s compressed O2 gas and not a liquid. Thus no worry about leaking out liquid O2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330467",
"author": "spencezar",
"timestamp": "2011-02-11T21:13:51",
"content": "in the disclaimer it say did not happen lol its fake",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330480",
"author": "Bob",
"timestamp": "2011-02-11T21:32:52",
"content": "You don’t need spaghetti. You can use almost anything. As long as you can get it to ignite, forcing compressed oxygen through it will cause it to become incredibly hot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330499",
"author": "Gene",
"timestamp": "2011-02-11T21:52:26",
"content": "@BobCompressed oxygen will make anything burn much faster, but not anything that burns will do; you still need sufficient energy content. Food, as it so happens, contains a lot of energy. Carbohydrates (pasta) for instance is more energy dense than TNT.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330500",
"author": "ledstart",
"timestamp": "2011-02-11T21:53:56",
"content": "What an asshole, ruining a perfectly good chair..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330532",
"author": "Ellie",
"timestamp": "2011-02-11T22:41:30",
"content": "Observation: In a real thermic lance the temperatures are much higher by the exothermic oxidation of the iron.This is really an oxygen spaghetti torch which is still pretty cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330566",
"author": "Hirudinea",
"timestamp": "2011-02-11T23:11:22",
"content": "They’ve been using this in Italy for years, they also use linguine for rebar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330628",
"author": "Jamie",
"timestamp": "2011-02-12T00:17:10",
"content": "Truely, they have been touched by the FSM’s noodly appendage, and inspired!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330630",
"author": "IJ Dee-Vo",
"timestamp": "2011-02-12T00:18:49",
"content": "@ ledstartWhat an epic D0od pwning a chair",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330639",
"author": "o",
"timestamp": "2011-02-12T00:33:08",
"content": "I hope she made lotsa spaghetti!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330738",
"author": "stormdog",
"timestamp": "2011-02-12T02:12:43",
"content": "@Jaime+1 for the FSM reference!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330748",
"author": "MikeM",
"timestamp": "2011-02-12T02:20:53",
"content": "For a good demonstration of a thermic lance, see the movie “Thief”. In it, James Caan’s character uses one to crack a safe. AFAIK, in the movie, the tube was magnesium.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331191",
"author": "Kaboof",
"timestamp": "2011-02-12T12:31:42",
"content": "wow, they are drunk and still the video is watchable.There are so many guys making videos with a shaky camera, bad vision angel etc…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331554",
"author": "b0bb3r5",
"timestamp": "2011-02-12T22:32:32",
"content": "Dont try this at home…. do it at your friends house!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331555",
"author": "NN",
"timestamp": "2011-02-12T22:34:07",
"content": "@Hockersmith O2-bottles are also mounted lying down when fitted in aircraft for high altitude flying (specifically: gliders). At least in that application, with those flow rates and regulators, it’s a complete non-issue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331666",
"author": "John Lock",
"timestamp": "2011-02-13T01:23:37",
"content": "CHROMIUM! GEESH!!! NOT AGAIN! Don’t burn aluminum!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331806",
"author": "Seeker",
"timestamp": "2011-02-13T04:31:24",
"content": "The Flying Spaghetti Monster would wipe a tear from his eye with one of his noodley appendages.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331900",
"author": "medwardl",
"timestamp": "2011-02-13T07:54:41",
"content": "I’m surprised they didn’t need a welding mask to look at it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332010",
"author": "octel",
"timestamp": "2011-02-13T12:09:56",
"content": "Meanwhile, millions of people all over the world are starving and dying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332468",
"author": "MYX",
"timestamp": "2011-02-14T03:39:43",
"content": "Somehow, I do not think it is drunkenness, I think it might be a little more chemical.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332469",
"author": "Putz",
"timestamp": "2011-02-14T03:41:56",
"content": "So if this was ANY good they would be cutting into a safe with it. Not a stupid chair.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332903",
"author": "bob",
"timestamp": "2011-02-14T14:31:12",
"content": "@octel: Meanwhile, meanwhile, you’re posting useless, negative and irrelevant messages on the internet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "383306",
"author": "spait",
"timestamp": "2011-04-20T10:25:02",
"content": "@octel: give a man some spaghetti, he eats for a day. teach him to harness the incredible POWER of spaghetti, and he can build a McDonald’s.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.319687
|
||
https://hackaday.com/2011/02/11/how-the-arduino-won-this-is-how-we-can-kill-it/
|
How The Arduino Won? This Is How We Can Kill It.
|
Caleb Kraft
|
[
"Arduino Hacks",
"Rants"
] |
[
"arduino"
] |
[Phillip Torrone], has written a piece over at Make entitled “
Why the Arduino won, and why it’s here to stay
“. While boasting that the Arduino “won” at roughly 100k units in the wild sounds decently impressive at first, lets just ponder for a moment how many bare AVR chips there are out there in home-made projects. Kind of makes 100k sound small doesn’t it. However, if you look at their definition of the Arduino, targeting fresh and new people to microcontroller projects, that changes things a little bit. That number suddenly starts to seem a little more important if you re-word it as 100,000 new beginner hackers. Sure, they’re only tweeting toilet flushes and blinking lights, but they’re excited and
they’ve tasted blood
.
[Phil] goes on to talk to manufacturers on how to “beat” the Arduino. He lists features that would help push someone onto a new platform instead of the Arduino. This, is where I think we come in.
We can kill the Arduino
.
Not as a platform, but by removing it from the hands of people through education. Lets embrace these new hackers. Lets pull them in with open arms and show them what they can do once they have learned from their Arduino and are ready harness the power of microcontrollers without limitations. We can show them just how simple of a circuit they could use to blink their LEDs. We could show them why and how we think another chip would be better suited to their project.
One reason attributed to the popularity of the Arduino is the hostile attitude from “old school” hackers. If someone shows up and excitedly says “look, I made an RGB mood lamp with an Arduino”, we shouldn’t scream in their faces how stupid they are for such a massive overkill. We shouldn’t ignore them either. That will only send them back to the Arduino forums with their tails between their legs to do yet, another copy/paste project. We should pat them on the back and say “Hey, great job! You know I’ll bet we could make a cheap circuit with a 555 that would pull that same effect off quite nicely and it would only cost $1. Here, check out this schematic.”
Embrace them, educate them, and the Arduino will no longer be their only tool.
| 146
| 50
|
[
{
"comment_id": "330253",
"author": "jeicrash",
"timestamp": "2011-02-11T17:09:45",
"content": "Very nice article, may not be full of HACK, but it brings up a good point in the hacking community. Without pointing new comers in the right directions and improving their education we have set ourselves up to see more arduino controlled self cleaning litter boxes. The litter box may be clean, but the newbies still offer up what was just cleaned out in a long line of re-packaged arduino projects, instead of fresh ideas using more appropriate components. Thats at least My 2 cents worth though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330255",
"author": "birk",
"timestamp": "2011-02-11T17:14:04",
"content": "Sometimes it’s not about the microcontroller part of the project. I use the Arduino as a quick and dirty way to test the “rest” of my circuits. Once I have the hardware interface down and/or the logic figured out I put the proper uC in and save the Arduino for the next job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330257",
"author": "komradebob",
"timestamp": "2011-02-11T17:17:53",
"content": "It’s not a ‘kill’, it’s more of a ‘co-opt’. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330258",
"author": "Phil",
"timestamp": "2011-02-11T17:18:06",
"content": "I thing its good that hackaday don show just hacks, sometimes non hacked thinks are like a hack :). A hack a day keeps the doctor away.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330259",
"author": "js",
"timestamp": "2011-02-11T17:18:14",
"content": "The arduino isn’t just a board. It’s the bootloader and IDE also. I’ve prototyped things on an arduino board, then programmed a new CPU with the bootloader and code and put it into a board designed for the project. I would consider that item arduino based even if it doesn’t have an official board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330260",
"author": "Lenny",
"timestamp": "2011-02-11T17:18:58",
"content": "NOT A HACK!!I kid.. I kid… great article. This did a great job catching my attention with the “and how we can kill it” part I was like “has HAD lost their mind(s)”? … then I read on… really well written and a great point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330261",
"author": "EmptySet35",
"timestamp": "2011-02-11T17:20:23",
"content": "@birk I agree completely. It drives me insane to see people’s “finished projects” which amount to nothing more than and arduino, breadboard, and a rat’s nest of wires. For me, that’s the beginning of a project, the test phase. After that I lay out the PCB and select the right uC for the job and put the whole thing in a nice enclosure, then my project is done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330263",
"author": "spiritplumber",
"timestamp": "2011-02-11T17:21:30",
"content": "I only bother with an Arduino if I am specifically asked to and ifFor small things that must be power efficient there’s PICs, for bigger things there’s the parallax propeller. I built a full featured autopilot (the “draw a route on google earth, hit send, watch it go” sort) with it in 2007. Even have the source code on my webpage, but ofcourse it’s not trendy enough, so nobody cared…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330267",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T17:24:27",
"content": "@spiritplumber,Sounds awesome, I don’t see it on your site though (no project log/source code). Email me a link!",
"parent_id": "330263",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330270",
"author": "John",
"timestamp": "2011-02-11T17:26:53",
"content": "How about more “basics” articles. With an included shopping list? I am a software guy and have 0 hardware exp. I dont have many tools and even fewer parts sitting in a bin. The duino kits interest me b/c i know I can spend 50 bucks and bang out a couple beginner projects before moving on. Where is your project pack & associated tutorials?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330272",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T17:28:38",
"content": "@John,I think you might have misunderstood. For you, the arduino is perfect, go get one! after you’ve done some projects, you won’t have 0 hardware experience and you’ll be ready to start making your own shopping list!",
"parent_id": "330270",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330273",
"author": "Anne",
"timestamp": "2011-02-11T17:29:11",
"content": "The point of Arduino is to give people who aren’t hackers yet a way to experiment. The Smash Putt installation in Denver this January is a good example of what Arduino can empower:http://www.youtube.com/watch?v=AcdVeSoJJAEIt’s not that the board or the environment are magic, it’s that they’re good enough to let people get on to the rest of the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330275",
"author": "matt",
"timestamp": "2011-02-11T17:34:45",
"content": "see, im doing electronic engineering, so i have some theory hardware knowledge, and am studying PICs, but have no hardware to play with. so i have the issue of what uC, what hardware, what project, what IDE, what dev board. and i dunno where to start =(",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "952952",
"author": "ivan",
"timestamp": "2013-02-02T14:44:03",
"content": "Huh maybe it’s a bit late to reply that:) You might be a full grown EE master by now, however i have one advice which might do good: don’t think of the environment, the MCU , the platform or such. You let your mind loose get get the idea of what your project wants to do. Then sketch it for a second and then start to imagine how much time and money are you ready to spend on it, until you see it finished. And then just start reading the main product lists of Microchip Atmel, Texas, NXP or such – you’ll find them. Then just go select something from a product/manufacturer that has good community support. Maybe some ASICs or discrete circuitry will add a better touch&performance to it besides just boring bit-banging. It’s not just the product – it’s the idea behind it that you want perfect.So what matters is: What do you wnat to do today:) (i know i rip-off Microsoft’s slogan but it fits perfectly here)",
"parent_id": "330275",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330276",
"author": "1337",
"timestamp": "2011-02-11T17:36:03",
"content": "for an extra dollar (gasp) i can switch out a 555 with an attiny. I bet you make up the dollar difference with the savings of additional components and pcb space required on the 555 circuit. So unless C programming makes you wet yourself the choice seems clear.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330279",
"author": "Jon brod",
"timestamp": "2011-02-11T17:39:51",
"content": "I think this article is a bit mis-guided. Sure the arduino is great but why would you want to kill it off? For me it started the journey towards using drivers and timers etc. Without the arduino I’m sure a lot of us would not even of gone down the path of learning about voltages, resistance, current, ICs e.t.c.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330284",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T17:44:42",
"content": "@Jon,I think we’re saying the same thing here. I’m appealing to the anti-arduino people saying that if they broaden the knowledge of the beginners, the arduino will no longer seem like the end-all solution. The term to “kill it” could be replaced by saying that those people will move on to more custom design AFTER they learn with their arduino.",
"parent_id": "330279",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330282",
"author": "Odin",
"timestamp": "2011-02-11T17:42:54",
"content": "Why do you want to kill the Arduino?Hackers love to KISS, and the Arduino is a great way to do so.Let’s say that I want a RGB LED to change color according to the ambient light, and I want to put it in a beautiful enclosure. I am a EE by day, and I’ve done 30 micorcontroller projects, so I am by no means a newbie, so let’s see what I have to do:1.) Create a schematic2.) Buy parts3.) Buy programmer4.) Breadboard circuit5.) Install the programming environment6.) Spend 2-3 hours trying to figure out why it doesn’t work (bad programmer? Bad drivers? Wrong chip? Power issues?)7.) Spend 5 hours programming and debugging (So… disable the digital on the analog pins, disable the analog on the digital pins, what should my timing be on the ADC sampling/conversion? Configuration bits? fuse bits? what the hell?)8.) Transfer entire circuit to a perf board9.) Make sure it works (Another short on the MCU solder joints? Another dead part? WTF?10.) Now I get to start the project enclosure.OR, if I used the arduino1.) Create a schematic (Time cut DRAMATICALLY down since the mcu, oscillator, and power supply is done)2.) Buy parts (Not too bad, I can get the LED, light sensor and resistors at RadioShack)…4.) Breadboard circuit (Time cut DRASTICALLY because it is only a few parts, don’t need to worry about programming header, wires, pull-ups, ect.)5.) Install the programming environment6.) Spend 1 hour debugging environment (Compared to Microchip, TI, or atmel, this step is ridiculously easy.)7.) Spend 2 hours programming and debugging8.) Transfer entire circuit to a perf board (Only need to worry about a few components, since everything else is already done)9.) Make sure it works (So much easier to debug since there are only a few parts)10.) Now I get to start the project enclosure.If you only want “Hacks” from engineers, go ahead and encourage something else. If you want to embrace mechanics, artists, and web developers IN Addition to engineers, you need something simple.Don’t Kill the arduino. Kill the elitism that says “Too Easy, not a hack”.Keep it simple, stupid.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330287",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T17:49:22",
"content": "@Odin,my article could be summed up as “for those who hate arduino, quit being jerks and start teaching. that will get you to your goal better.”. I don’t disagree with your statement at all. Actually, several of us at hackaday have arduinos for super fast prototyping.",
"parent_id": "330282",
"depth": 2,
"replies": [
{
"comment_id": "449814",
"author": "Eirinn",
"timestamp": "2011-09-07T17:17:18",
"content": "I completely agree, i’ve done quite a few arduino projects now. I’m not loving the syntax though…In any case it empowers me to do things…well i’m just summing up the article i think.Point is, i think i’m slowly outgrowin the ‘duino, now what? Maybe worthy of a HaD article?",
"parent_id": "330287",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "330290",
"author": "onlysix",
"timestamp": "2011-02-11T17:52:05",
"content": "OK, i admit it, i am very guilty of using arduinos. The problem i have is that i don’t know programming and i don’t know where to begin. i don’t have issues with hardware, i can solder and wire with ease, make cases, harnesses you name it, just not PCB design/making. So where does that leave me?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "952954",
"author": "ivan",
"timestamp": "2013-02-02T14:50:34",
"content": "to the point of learning more new stuff, mate:) there’s no thing cooler than that",
"parent_id": "330290",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330291",
"author": "TiredJuan",
"timestamp": "2011-02-11T17:53:20",
"content": "@Caleb: I’m in the same boat as John, I’m a software guy, not hardware. Though, I have an Arduino, a couple of the TI Launchpads, and various other pieces and parts (Including a few random AVR’s, and a few kits from Sparkfun etc…) I feel as though Arduino’s and the like, while they have peaked my interest, have left me a little empty on the actual knowledge side of things. I see bunches of tutorials on “where to go from the Arduino” and how to do things like “set fuse bits”. The problem is nothing (that I’ve found) actually explains what things mean, or what do to with them/how to use them. Just that you need them. Perhaps we could see a set of tutorials on the basic components (not resistors and the like, but 555 timers, op amps etc) and their uses? I get that I may just be looking at the wrong information so a link or two would suffice in my case, but it would be nice to have a link list or something for beginners like myself.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330299",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T17:56:20",
"content": "@TiredJuan,I hear you. I’ve been working for a couple years to bring a solid instructional foundation to hackaday. The closest we have right now is the tutorial series by Mike S. on programming AVR microcontrollers but I’m looking forward to more basics. Make magazine has done some fantastic stuff in that field as well.",
"parent_id": "330291",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330294",
"author": "pfoet",
"timestamp": "2011-02-11T17:54:13",
"content": "Of course you could also build a board with a 555 on it but it’s certanly NOT CHEAPER simlply because you can reuse your arduino (if you don’t like your blinking led anymore ;) ) but not your 555 circuitboard…A 555 plus extra stuff ( condensators, resistors and perhapse even a voltage regulator etc…) to get an RGB-led to blink? -> overkill ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "449817",
"author": "Eirinn",
"timestamp": "2011-09-07T17:19:32",
"content": "Unless it’s done on a breadboard.I love my Arduino’s ability to switch everything off if there’s a short circuit. Oh boy the amount of times i’ve burned my fingers on a 555 or an lm386 to see if something was wrong (and trashing the chip in the process).",
"parent_id": "330294",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330296",
"author": "Larry",
"timestamp": "2011-02-11T17:55:19",
"content": "Yup I love the Arduino still do and it got me into hacking things together. Having done this it’s made me enjoy programming again and the confidence in programming other chips as there’s nothing particularly complex in doing so. The one bad thing that it has done is removed the grounded education in electronics by over simplifying. I’ll still use the Arduino though but now it’s not my first immediate thought when hacking something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330302",
"author": "Lenny",
"timestamp": "2011-02-11T18:04:16",
"content": "I think a few people here are missing the point… the ones that are saying “why would you want to kill the arduino?”I don’t think (unless maybe I’m the one missing the point) that this article is really about killing the arduino and “kill the arduino” is really just an attention getter.It seems to me he’s saying embrace and support the arduino AS an entry point, but encourage people to take the leap and learn how to do it without.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330324",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T18:37:20",
"content": "@Lenny,bingo, just add “stop being jerks” on top of that.",
"parent_id": "330302",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330309",
"author": "qwerty",
"timestamp": "2011-02-11T18:09:30",
"content": "The Arduino won only if you ask the outcome to the wrong people.It is an interesting prototipying platform with some good libraries but sadly a terrible Java based IDE. Newbies and people interested in using it as a tool to develop other stuff will find it interesting but strict microcontroller development is a whole different thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330323",
"author": "xeracy",
"timestamp": "2011-02-11T18:35:29",
"content": "@CK>”quit being jerks and start teaching”this is the kind of mentality that needs to be embraced in all walks of life. elitism gets us nowhere and nothing that the jerks complain about will ever change. The problem in most communities is that there is a lack of willingness to learn on the part of newcomers, especially if the community is centered around something trendy.i’ve learned so much from this community in the past few years, mostly in the form of monkey-see-monkey-do learning. However the best part of any post here at HAD are the conversations and ideas in the comments, and they truly enrich the learning experience.I believe that the arduino was a necessary step in getting my feet wet because it gave me a ‘big picture’ that i got to dabble with. every time i had tried to learn to make circuitry (i did’t major in CS, EE or anything related, so it was all on my own) i could never get past the extreme technical definitions of the components and how they interacted in a practical sense. i’m still using an arduino for most of my projects, buy now that i’m looking to make a device that needs to be smaller than the arduino nano platform, i feel confident that i can make it from base components. (also, simulation software like the ones mentioned here on HaD recently also helped greatly).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330332",
"author": "peter",
"timestamp": "2011-02-11T18:45:43",
"content": "I can’t tell you how many crappy boards I built, how many PICs I killed going in and out of zif sockets.Building your own boards sucks. Having non-portable code sucks. That’s why the Arduino has “won”. They took the two sucky things about building projects away.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330337",
"author": "M4CGYV3R",
"timestamp": "2011-02-11T18:53:41",
"content": "THANK YOU. This is what I have been saying for quite some time…Teach all these ‘new hackers’ to use the REAL raw tools so they can move PAST the Arduino and its limited abilities, as well as understand what is actually happening in your device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330354",
"author": "M4CGYV3R",
"timestamp": "2011-02-11T19:05:38",
"content": "@Odin: The PIC has at most 6 wires to connect for ICSP and most chips support ICD with the ~$35 PICkit programmer.Steps 2, 3, and 5 of your example will only be done once. If you’re already set to work on electronics, like any self-respecting hacker should be, the steps are more as follows.1. Create schematic.2. Breadboard3. Program & Test (Max 2-3 hours for a very complex program)4. Decide if it’s worth perma-boarding or enclosing.5. If step 4 determined you need to, put it on a custom etch/perfboard and do any enclosure you want.With an Arduino, the steps are vaguely the same, except you don’t have the option of putting it on a perma-board of any sort. You have to leave the Arduino wired-in as it is. If you’re using a chipduino unit you’ll need to do even more work to program it.You need to buy the same components with each. An arduino also requires wire, resistors, caps, LEDs, etc to work in a circuit as you want it to. Building an arduino circuit is, in fact, just breadboarding.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "449866",
"author": "Eirinn",
"timestamp": "2011-09-07T18:33:38",
"content": "3. Program & Test (Max 2-3 hours for a very complex program)2-3 hours? Are you mad? Maybe for an engineer this is plausible for a very complex program – an engineer is not really part of the target group :)",
"parent_id": "330354",
"depth": 2,
"replies": [
{
"comment_id": "1381784",
"author": "John",
"timestamp": "2014-04-26T06:21:45",
"content": "This is SO late but… DITTO! My first Arduino project is now 997 lines! And it’s about 65% complete. 2-3 hours? More like 2-3 MONTHS!",
"parent_id": "449866",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "330379",
"author": "BrianZ",
"timestamp": "2011-02-11T19:36:33",
"content": "I’m always surprised that the Picaxe doesn’t get thrown in with the Arduino as being too easy. I love that it’s like $3, I can use my weak Basic programming skills, and it has pretty good documentation. For me, programming in Basic is easier than cutting and pasting C code I don’t understand. I’m always afraid that if it gets too popular, everybody is going to turn on the Picaxe and chastise it’s users for not doing whatever it is that lets you use a plain PIC chip instead. Is it just the fact that the Arduino is already stuck to a board with sockets that makes everybody so edgy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330384",
"author": "Bob Spafford",
"timestamp": "2011-02-11T19:44:34",
"content": "It seems that some of the technically adept folks are just not getting it. At some point, every adept person was a newbie looking into The Great Black Box called a computer, but with experience found that it’s not so very mysterious after all. He then forgets that once he was the newbie looking into the unknown. The Arduino IDE tosses out the emulators and debuggers that can be so difficult to learn. I think that their renaming programs to be “sketches”, and I/O glue logic to be “shields” is a clever attempt to communicate “Hey! This isn’t as overwhelmingly complicated as you may think. The learning curve isn’t miles and years long as it is for an engineer. It’s very cheap to try it. So, jump in and see how you do!”. My son is a top level game programmer. As a kid growing up, I could not interest him in the world of hardware, other than how to use a slobbering iron competently and don’t stick your fingers into high voltage! Arduino has given him a relatively painless path into the hardware world in a way that I was unable to do when he was younger. Just as knowing what’s under the hood makes you a bit better driver, I believe that some insight (no matter how “unprofessional”) into the world of hardware makes one a bit better programmer. We were hacking a set of those xmas lights with a chip in every bulb. I brought my $3500 scope to look at waveform timing issues, only to find it non-operational. My kid had everything working in under 15 minutes by intelligent tweaking of the software. My jaw dropped. When the “sketch” would not execute properly, he would edit source, compile, load it to the Arduino, and execute it in under 15 seconds! So, is Arduino “crippleware”? Of course it is! Is Arduino a very quick and very cheap way to accomplish simple goals? Of course it is! And because of that, a generation of youngsters are unafraid to dabble with microcomputers. I think that is a positive accomplishment! Welcome to the hardware world, newbies!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330390",
"author": "Dave McNapstem",
"timestamp": "2011-02-11T19:50:03",
"content": "Although I’ve not experimented with the arduino yet, I’ve wondered for a while if it would be powerful enough to replace a pinball machine MPU…. Anyone have any thoughts on this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330394",
"author": "twopartepoxy",
"timestamp": "2011-02-11T19:52:45",
"content": "Picaxe already kills the arduino!http://www.rev-ed.co.uk/picaxe/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "449948",
"author": "Eirinn",
"timestamp": "2011-09-07T20:03:38",
"content": "What’s a picaxe?",
"parent_id": "330394",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330397",
"author": "RF",
"timestamp": "2011-02-11T19:58:55",
"content": "I just got my first arduino board (arriving via FedEx today, actually); before that I’ve been using some of the Parallax stuff. The ‘duino and the Parallax dev boards are great ways to just bang something out; I don’t always want to make a board and spend hours assembling crap just to get a simple task (or even a more complex task) done. So what if a prebuilt development board costs a few bucks more and doesn’t involve having to deal with the purity of truly assembling your project from scratch? The time it saves me alone far outweighs the extra money I *might* spend on it and lets me get on with having a useful circuit sooner.Yeah I’m not going to strap an arduino kit, propeller dev board, or similar products in and call it a real OEM finished product, but most of the time I just want something that works for whatever stupid project I’m building and really don’t care whether I’m a “real hacker” doing it, I just want to do it and move on. These type of products are useful even to those of us that can assemble a real circuit…However I do see the article’s point, and hope the people totally new to this stuff use it as an entry point into really learning the technology. Even if they don’t though, I think that’s OK.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330406",
"author": "Bill Porter",
"timestamp": "2011-02-11T20:06:26",
"content": "@CalebVery well written, this has been long time coming.I think there’s also an important distinction to be made between the hardware Arduino boards and the Arduino library. Everything said here mostly applies to the hardware side IMHO.I feel the Arduino library is a well written ‘replacment’ for the aging avr-libc. It’s just a software library to enable easier C development on AVR cores. I consider it in the same class as avr-libc. Sure, there’s some slow ‘idiot checks’ in alot of the calls, but they have been improving speed, and there’s nothing stopping the end-user from tweaking the library themsleves (I have).I’ve bought very few Arduino boards, but I have used the library on many of my projects with my own boards. Sure, I could start codding from scratch, but it just makes dev easier. What’s wrong with that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330416",
"author": "mstone",
"timestamp": "2011-02-11T20:21:34",
"content": "And once we kill the Arduino, we can kill solderless breadboards, yes? ‘Cause everyone knows it isn’t a *real* circuit until you start soldering. Then we can kill microcontrollers in general, because everyone knows that the big kids use FPGAs.Face it: there are many levels of hardware development, and many tools at each level. The Arduino is one tool of the many. It’s a fast and easy platform for testing ideas that are best implemented in code, just like solderless breadboards are a fast and easy platform for testing circuit topologies and component values. Yeah, there are a bazillion other options for code sketching, but the Arduino happens to be seeing the benefits of network effects.Every circuit, and every piece of control software, starts as a sketch, so sketching platforms will always be an important part of the development process. Sketching is loose and flexible process by its very nature, so the killer app of sketching platforms is, and always will be, convenience. The Arduino happens to be sufficiently convenient for a wide range of code sketching. It also offers a convenient path for evolving external circuitry up to the PCB level. That makes it good enough to stick around for a while.If you want to ‘take the Arduino out of people’s hands by education’, you’ll have to replace it with another sketching platform that does the same job. Replacing one thing with another thing that’s basically the same is a waste of time, and VHS -vs- betamax taught us that being ‘arguably better’ doesn’t give people a compelling reason to switch.You’ll never ‘educate’ people out of the need to make sketches, and I sincerely doubt that anyone will come up with another code/hardware sketching platform which is vastly more convenient than the Arduino. Others may rise that are equally good, or which have different areas of strength, and then we can all look forward to a nice long ‘vi -vs- emacs’ spat over hardware platforms.Instead of arguing about tools, let’s pay attention to the process of evolving a circuit from the napkin-sketch to a finished product, and look for ways to make the whole journey as easy as possible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330417",
"author": "Jeremy",
"timestamp": "2011-02-11T20:23:23",
"content": "I agree with most of your points. I have a handful of arduinos. I come from an electrical engineering background and I don’t like to reinvent the wheel when something off the shelf will do. However, I agree that when I see all of these posts of “finished” projects and they are a breadboard, arduino and a mess of wires I think that is not a finished project, it is a finished prototype or even just a finished concept. With pcb’s so cheap these days with group orders and such, it is a shame to not have a nice polished single board device for a finished project.Now for simple things or prototyping, the Arduino makes it stupid simple through their (overly) simple IDE and function set. For instance, this past Halloween, I wanted to light up and program a random sequence of LEDs for my pumpkin with only 30 minutes before the kids hit my door. An arduino was perfect for it.On the “Hater” side, the arduino is a good start but once you want advanced circuit design or optimized programming, then it is time to drop the bunny IDE and simple bootloader and function set for something that doesn’t require numerous cycles to turn on a single output.Arduino has it’s place and I for one will continue to use it as it is a nice platform for prototyping and for spring boarding into a much larger world of electronics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330423",
"author": "rallen71366",
"timestamp": "2011-02-11T20:30:09",
"content": "This article brings up a very good point: the attitude of the existing community really can keep people out, or accelerate it into general acceptance. For instance: the early linux community damn near killed the promising OS with ‘elite hacker egotism’ and refusal to help new people. It took concerted effort by evangelists, and commercial interests, to slowly bring it into the mainstream.For the longest time, I’ve considered the group here at hack-a-day to be the same as those early linux hackers: full of knowledge, and basically arrogant bastards that do more damage than good regarding newbies trying to learn about microcontrollers. It got to where I wouldn’t even read the comments about any Arduino article I was interested in. I’ve been in electronics and technology for over 30 years, and I have to say that seldom have I seen such a collection of A*holes as I’ve seen here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330425",
"author": "Attrezzo",
"timestamp": "2011-02-11T20:31:58",
"content": "Why should we have to “kill” the arduino?What a silly concept. Look at what good it’s done to encourage new products, hackers, and ideas.YES IT! There was likely a steady stream of people becoming electronics hackers before the arduino. But AFTER the arduino we got artists, computer guys, high schoolers, and lots of people who’d never written a program before. Much less knew about 555 timers.. Arduino re-invigorated electronics for me and a WHOLE lot of people. You proud “old school” hackers should be thankful there are so many new minds that are being mentored in your art, however cursory that knowledge, is it is there where it wasn’t, and never would have been before.I’ve always loved electronics, though even growing up as a dorky kid who’s favorite saturday morning shows were science shows (beakman’s world and bill nye etc), a dorky kid who bought a soldering iron just to desolder old junk and look at the parts, a kid who’s favorite christmas gift was an electronic science kit. I NEVER as a young adult knew that pic microcontrollers were free, or that there was such a thing as a development kit. Instead, like many others, open source computer software filled the tinkering gap, until… Arduino. Did they advertise well? Were they just simple enough? Was it the community they built on their website with free help? Was it the open source and open hardware nature? Probably a little of all of those.Bottom line, I should have been an electronics hacker in high school. With arduinos around I would have been.Give thanks that now your hobby industry is a MUCH richer world with bigger and better ideas because of a cheap development kit that did something just right and caught a whole lot of new attention. In the future many of these pesky beginners will probably be as well versed as some of the best hardware hackers you showcase today.Open the beginner mind to new dev kits and the wider world of micro-controllers? By all means yes.Kill the arduino? No! Why the hell would anyone want that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330446",
"author": "Odin",
"timestamp": "2011-02-11T20:42:52",
"content": "@M4CGYV3R:“…If you’re already set to work on electronics, like any self-respecting hacker should be…”While I have the complete tool suite required to do hardware stuff (5 breadboards, two oscilloscopes {one old super-fast CRT, one usb-based}, three programmers {one AVR, two PIC}, plenty of resistors/caps/wires/led’s, I’m simply sick and tired of the problems associated with breadboarding, especially with a microcontroller. (external oscillator size/issues, high-speed digital signals coupling into my analog circuit, programming header and wires popping out, mcu getting reversed, shifted, or some other damaging death…) There needs to be a stable platform allowing me to prototype with minimal effort.“You need to buy the same components with each. An arduino also requires wire, resistors, caps, LEDs, etc to work in a circuit as you want it to. Building an arduino circuit is, in fact, just breadboarding.”Agreed, but the Arduino is a package that removes the following requirements:Power supplyOscillatordecoupling capacitorsUART to USB conversion (on later models)programmer requirementsThis greatly simplifies things and gives you time to focus on the other parts of the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330461",
"author": "A7",
"timestamp": "2011-02-11T21:07:54",
"content": "Kill arduinos!! i’ve seen people using arduinos on Final Year projects! on Electrical or computing engineering… WTF?! Hardware in arduino is datasheet hardware.. basic pinouts.. there’s nothing fancy about it.. bootloaders too.. so if you can’t see that arduino is just a board with a ridiculous basic circuit and you’re too lazy to mount it on a breadboard (come on.. takes 10 minutes or less to put those things on a breadboard) go study law, or economics..people make a lot of noise about it. .arduino this, arduino that.. it’s just a board! want to learn about electronics? pick a book! there’s a lot of great books out there. after that you will know about it and make things much easier.. using that Processing thing they call a Programming Language, you won’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330468",
"author": "Lucia",
"timestamp": "2011-02-11T21:15:57",
"content": "Look everyone. I bet 99.9% of you cut your teeth on home computers. Think those designs were ‘academia’ approved? What if we hadn’t had that amazing ecosystem of tens of brands of easy to program computers back in the 80s? Would you say you are not a real professional if you didn’t begin in mainframes? What made home computers ubiquitous and enjoyable were… ease of use, getting instant feedback, playing around. So no one go smug on arduino folk. It’s about lowering barriers of entry and everyone having fun, so abandon that old mentality about ‘amateurs’ being worthless. The more the merrier. Of course arduino is trendy so you still have to brush off the ignoramuses, they also exist in the software world and it doesn’t seem to be a problem, does it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330491",
"author": "MaxwellMudd",
"timestamp": "2011-02-11T21:41:46",
"content": "I think that a good thing to remember with all the Arduino hating, is that the Arduino platform is like the PageMill or MS FrontPage of the uC world, it makes everyone an EE. Once it comes down to brass tacs, most of the noobs that only develop for the Arduino still wouldn’t be able to develop for a real uC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330496",
"author": "Attrezzo",
"timestamp": "2011-02-11T21:51:52",
"content": "Kill legos too! They’re just blocks of stupid overpriced plastic.REal engineers would tell any “lego imagineer” that there are much better materials to build out of and you can do SO MUCH MORE!For instance, steel, and wood! All you need is a lathe, a drill press, a table saw, maybe a MIG welder, a plasma cutter, some drill bits, a hammer, some brushes….** On a serious note, I find the comparison shockingly similar. Shame. And you elitists call yourself hackers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330517",
"author": "Kuhltwo",
"timestamp": "2011-02-11T22:07:30",
"content": "Having been “raised” on old fashioned electronics, i.e. before microprocessors and then on the early 4 & 8 bit monsters, I still look to doing things without any kind of processor. Granted it takes a lot of tyme, but I enjoy it. I still don’t make pcb’s either, faster just to do it with wire.That said, I have been wanted to come into at least this century and start using whatever type of microprocessor I can get my hands on. But after reading all the back and forth on what type to use, which is better, etc., plus my programming is late 80’s, and not having a lot of tyme to learn new programming skills, it gets confusing what to choose from. One of the reasons I read HAD is see what others are using and why. And hopefully I can eventually figure out where to put down my very hard to find $$.I agree with the basic gist of the article, however you can get more people to learn the basics of electronics, the better.Even if it means using a sledge hammer to nail a tack on the wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330518",
"author": "pt",
"timestamp": "2011-02-11T22:08:34",
"content": "great post caleb, everyone should read this part over and over…“Lets embrace these new hackers. Lets pull them in with open arms and show them what they can do once they have learned from their Arduino and are ready harness the power of microcontrollers without limitations. We can show them just how simple of a circuit they could use to blink their LEDs. We could show them why and how we think another chip would be better suited to their project.”that’s the point, the community here can lead the way :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330525",
"author": "tz",
"timestamp": "2011-02-11T22:23:26",
"content": "Why the arduino won is the entire system.So instead of having something easy to hook up and program on win/mac/linux, you want people to switch to learning how to do PCBs, soldering fine pitch, getting $250 programming devices, and using captive IDEs that only run under Vista 64. Get real.I rarely use the Arduino IDE. But it is so much easier to use the bootloader. GCC supports the other Atmel chips like the 2313 which programs on the $49 Dragon and is supported by Avrdude and Avarice in most cases.I would welcome more and different processors. But when I look, GCC is missing or the forgotten stepchild (isn’t 2.95 sufficient?), I can’t easily breadboard most versions, it requires some strange hardware to program or something else. The OEMs only want to do some minimum and then wonder why.Even ARM – there are a few things like the chumby hacker board or Beagle board, but why is fedora stuck at 12?I wish the other microcontroller manufacturers would get a clue. But I can’t use the chip in a complex context if it takes $500 and two weeks just to flash an LED.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330526",
"author": "woutervddn",
"timestamp": "2011-02-11T22:30:18",
"content": "I like caleb’s way of thinking.. I’ve got one of those free STM32 discovery boards lying around here.But because there is not that much of tutorials and stuff out there I just didn’t start on it yet..That’s one of the main strengths of the arduino, it’s community!I know that I’m not going to move to a stand alone AVR or ARM chip soon just because I’m just building things without a real cause (just because I can..)I remember another article on HaD called “What after the Arduino” I think.. Anyways I loved it and more of that type of content should be shown to let new hackers really get dirty with all those chips",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330545",
"author": "A7",
"timestamp": "2011-02-11T22:48:46",
"content": "i just have the impression that this is a great deal for electronics companies, so once there’s less people dealing with real hardware constraints, there’s less competition for them.. and yet, the people are having the impression that they’re dealing with electronics and stuff, so they’re happy! they keep people busy, while keeping they away from reality and from the market",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330547",
"author": "Eardrill",
"timestamp": "2011-02-11T22:52:41",
"content": "To me, the reason the Arduino “won” is that it reduced friction to get something going. I’ve been a professional programmer for decades, but I can appreciate how easy it is to set up and use the Arduino ecosystem: the fact that it’s cross-platform, and cheap, plus a host of little things like not having to manage C prototypes & headers, and not having to configure a build system. There are a lot of things that hard core hackers take for granted that are barriers to entry for non-programmers. The Arduino team did a good job at easing the pain of this for non-hackers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330548",
"author": "ftorama",
"timestamp": "2011-02-11T22:53:52",
"content": "Why would we like to kill the Arduino? In that case, let’s kill microcontrollers.We can do the same things with logic, but who would like to do it?If I had to make a blinking led, I would do it with an Attiny as I know I can change the blinking rate, period, add an external control if the project changes.Try to be so versatile with a 555",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330553",
"author": "A7",
"timestamp": "2011-02-11T22:58:37",
"content": "Dude, do not underestimate 555s. .they are everywhere, and can do things that u can’t imagine.. sounds like magic, but they are really flexible.. and versatile!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330556",
"author": "vidor",
"timestamp": "2011-02-11T22:59:19",
"content": "I have to disagree with you Caleb.As an artist with all the basics of electronics, but not imbued with the intricate knowledge of programming and the further physics of IC architecture, I have run up countless hours in dealing with the Ego’s of EE’s.Embrace them you say? Go tell that to the fat nerds who have told me “voltage is voltage” (in response to a q? RE: 3.3v vs 5v ) or told me that I need to learn how to do hot-air SMD before they help me out.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330567",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T23:15:18",
"content": "@vidor,Not sure what you’re disagreeing with. what I’m saying is that your experience isexactlywhat should not happen. I’m saying that they should embrace you, and educate you to the best of their ability instead of being jerks.",
"parent_id": "330556",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330571",
"author": "Norbert Ahler",
"timestamp": "2011-02-11T23:20:24",
"content": "The Arduino is a religion. And like with all religions it is a waste of time to argue with the true believers. Arduino believers don’t want to be educated. They made that choice already when choosing their Arduino religion. They want to believe and evangelize. This is not a good base for educating someone.Read that makezine article again. Phillip Torrone is constructing a holly war where there is non, wouldn’t it be for the Arduino believers shoving the thing into our face whenever possible.I am not interested in their litter box projects, but the Arduino believers think I have to, and making a big fuzz about it. They insisting on their TLC. If they don’t get it they start to annoy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330575",
"author": "metis",
"timestamp": "2011-02-11T23:25:25",
"content": "i dunno, my approach to projects has been:1-do some research2-pick a reasonably appropriate tool3-learn how to use tooli’ve not built a micro controller projcet (yet, few in the wings) but everything i’ve pondered with 5 min of poking about online i’ve not yet been convinced that an arduino was any of the best, cheapest, or easiest options for what i wanted to do.i whole heartedly agree that it’s awesome that folks are tinkering, but to me the arduino is like shopping at home depot. for most things, you’re gonna pay more than if you went to an actual lumberyard, it’ll be a different hassle, and the whole thing will be average. sometimes that’s great. most of the time, there’s a better way.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.421307
|
||
https://hackaday.com/2011/02/10/canon-t1i500d-external-microphone-hack/
|
Canon T1i/500d External Microphone Hack
|
Mike Nathan
|
[
"digital cameras hacks"
] |
[
"audio",
"dslr",
"microphone"
] |
Like most other DSLR cameras that feature video recording, the Canon T1i has a small built-in microphone with limited sound reproduction capabilities. [Robb] wanted better audio performance while taking video, but found the camera’s inability to use an external microphone to be a frustrating limitation.
He decided to take matters into his own hands
, and disassembled his camera in order to add an external microphone jack. The process is not overly complicated, as it requires little more than the installation of a switching microphone jack. You will however need to get your hands a bit dirty since it involves opening the camera, a bit of drilling, and some epoxy. Doing such things to your camera clearly voids the warranty, and with a $600 camera at stake, this hack is definitely not for the faint of heart. That said, if you desperately want to get better quality audio from your Canon T1i or 500d DSLR, be sure to check out his tutorial.
| 15
| 15
|
[
{
"comment_id": "329290",
"author": "sp00nix",
"timestamp": "2011-02-10T19:30:37",
"content": "As soon as i see the instructables hand in its “halt!” fashion i quickly turn around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329292",
"author": "Dan",
"timestamp": "2011-02-10T19:31:40",
"content": "I wonder if the T1i has the same auto-gain problems as the T2i. The T2i has an external mic hookup but it does this awful auto-gain stuff that makes it basically unusable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329319",
"author": "sp00nix",
"timestamp": "2011-02-10T20:00:58",
"content": "@Dan, is it picky about the impedance of the mic?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329367",
"author": "Luke",
"timestamp": "2011-02-10T20:32:48",
"content": "I prefer an external audio recorder and a clapperboard, but this is more impressive. Nice work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329490",
"author": "Robb",
"timestamp": "2011-02-10T21:59:48",
"content": "@Dan Check out MagicLantern firmware upgrade for the t2i. It was originally designed to get rid of the auto gain problem but now has been extend far beyond that. It is similar to the chdk in that it runs off the sd card and doesn’t modify the camera at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329590",
"author": "Cricri",
"timestamp": "2011-02-10T23:32:46",
"content": "Nice hack! As described in the article, I wouldn’t dare doing that on a $600 camera, but I’m sure it’s worth it when done properly and cleanly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329724",
"author": "j_jwalrus",
"timestamp": "2011-02-11T04:00:02",
"content": "too bad its mono.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330535",
"author": "Pat_loonytoon",
"timestamp": "2011-02-11T22:41:54",
"content": "What!? He makes HackADay…that’s crap. I talked to this guy on the forum before he made it. I released a video where I had made it and then he told me he made it into an instructable…my claim to fame ruined. :Xhttp://www.youtube.com/watch?v=900H9tru8hI",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330644",
"author": "Drackar",
"timestamp": "2011-02-12T00:38:09",
"content": "Yeaah. I’d rather go get a decent external audio recorder.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "392300",
"author": "Henrik",
"timestamp": "2011-05-10T11:59:56",
"content": "Note that the 500D can only record in 20fps if you’re planning to record in 1080p, or else you have to stick to 720p. I’d rather spend a bit more on 550D, which can record 180p in 24/25fps, AND has a mic in jack, AND warranty. :3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "397348",
"author": "dougal",
"timestamp": "2011-05-24T00:58:13",
"content": "Hello,Great hack. I have a d5000 with essentially the same issue however when you take the back off it’s not so clear which wires are what. I can buy a service manual from Hong Kong for 30 or $50 but if anyone has hacked this model before I’m listening. In the end $50 is cheaper than a new camera.Cheers",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "397386",
"author": "douglas scown",
"timestamp": "2011-05-24T04:10:44",
"content": "Good hack,I have a nikon d5000 with the same issue. Being a DV novice I didn’t realise the imp. of an external mic. I’m quite confident in doing the job BUT the nikon is wired differently. Does anyone have a d5000 or the d5000 service manual? I can buy one from hong kong for $50 but thought I’d try here first.Cheers",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "397596",
"author": "patloonytoon",
"timestamp": "2011-05-24T18:57:15",
"content": "This service manual-http://www.nikonusa.com/pdf/manuals/dslr/D5000_en.pdf??",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "397599",
"author": "patloonytoon",
"timestamp": "2011-05-24T19:09:44",
"content": "Couldn’t find any service manual for that model even on e-bay. You might need to find a similar model to go off schematics of.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "397775",
"author": "douglas scown",
"timestamp": "2011-05-25T08:29:22",
"content": "Oops I posted twice.Thanks but no not the user manual. The service manual is what I need. I tried ebay as well. Looks like I’ll be contacting hong kong. Gee there are some things the internet can’t do?!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.252891
|
||
https://hackaday.com/2011/02/10/they-joy-of-forums/
|
The Joy Of Forums
|
Caleb Kraft
|
[
"home hacks"
] |
[
"coffee",
"forums"
] |
[John Park] over at Make posted a short story about coming home from vacation to find his espresso machine non-functional. After beating his head against the wall for a while he joined a forum and posted a video. As has happened so many times,
another user had seen this exact issue and was able to send him in the right direction
.
We realize that this is just a simple capacitor replacement, though we understand his frustration, the original
looks
perfectly fine. The point here, is that there is usually someone out there on a forum that has experience with whatever your problem is. So don’t waste any time, go join the
most awesome forum on the planet
and get hacking!
| 15
| 15
|
[
{
"comment_id": "329234",
"author": "strider_mt2k",
"timestamp": "2011-02-10T18:10:26",
"content": "wordVarious forums have helped me more times than I can count.HAD forums already rock, and they are just getting started!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329237",
"author": "yetihehe",
"timestamp": "2011-02-10T18:12:00",
"content": "They joy of errors in headline!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329249",
"author": "fotoflojoe",
"timestamp": "2011-02-10T18:32:28",
"content": "I love Hack-a-Day. I’m loving Make online more and more. However, it’s pretty absurd that when something gets posted on one site, it’s pretty much guaranteed that it will be swiped and posted by the other within a few days.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329254",
"author": "thermite1",
"timestamp": "2011-02-10T18:35:24",
"content": "Try this forum for electronic advice, the guys there are really nice and helpful:http://dutchforce.com(I am not affiliated with them in any way, BTW)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329259",
"author": "biozz",
"timestamp": "2011-02-10T18:41:37",
"content": "i have lost fathe in my fellow human beings thanks to some people on some forums XDyeah as soon as trolling leaves the social norm ill hit the forums XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329264",
"author": "Necromant",
"timestamp": "2011-02-10T18:50:20",
"content": "Nice Pr, guys!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329272",
"author": "Dosbomber",
"timestamp": "2011-02-10T19:03:40",
"content": "I’ll vouch for the Dutchforce forums, I was on there a few years ago (haven’t been back in awhile), and there are many good (if eccentric) people on there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329275",
"author": "phil",
"timestamp": "2011-02-10T19:08:59",
"content": "HAD forums are useful. i recently inquired about sourcing parts from appliances (what can i get from what) and was referred to this post:http://forums.hackaday.com/viewtopic.php?f=2&t=33get in there and contribute!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329277",
"author": "yetihehe",
"timestamp": "2011-02-10T19:14:03",
"content": "@biozz : It depends on forum. Sometimes other users can give you really useful advices. Many times first few replies are junk and you just have to wait a moment until real helpers are able to write insightful comment (hey, it’s harder than trolling, so trolls are faster). Sometimes it’s YOUR fault that you don’t have good answers (bad question = bad answers). Happened few times to me but few good words answered to a user who bashes you can do wonders.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329310",
"author": "vini",
"timestamp": "2011-02-10T19:44:08",
"content": "i had to do the same with my apple time capsule,replace 2 capacitors and its fine",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329487",
"author": "Jeff",
"timestamp": "2011-02-10T21:57:27",
"content": "John Park! Oregon Ducks faculty FTW!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329503",
"author": "Bill",
"timestamp": "2011-02-10T22:02:09",
"content": "What on Earth is an espresso machine doing with a $200 brain? Espresso machines are supposed to be about Steampunk, with simple electric coils, valves where you need valves, analog dial meters if you need to know temperature and pressure, and three pounds of wetware controller if you want to do fancy stuff. And that’s for the fancy machines, as opposed to the classic Exploding Stovetop Mocha Pots or the Aeropress which is made of plastic and design.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329815",
"author": "coldfront",
"timestamp": "2011-02-11T06:58:00",
"content": "the capacitors…its *always* the capacitors…little bastards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329825",
"author": "Davo1111",
"timestamp": "2011-02-11T07:16:38",
"content": "@Bill – welcome to the 21st century, its all about complicating your life (to make it simple)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330095",
"author": "woutervddn",
"timestamp": "2011-02-11T12:44:29",
"content": "@bill: in school (which is a technical university college) we had no light in on of the auditoriums for over two weeks because the software to control the dimming was busted.. (cause a normal pot. switch just wasn’t fancy enough)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.526107
|
||
https://hackaday.com/2011/02/10/talking-joystick-mouse/
|
Talking Joystick Mouse
|
Caleb Kraft
|
[
"Peripherals Hacks"
] |
[
"accessibility",
"gamepad",
"Joystick"
] |
Instructibles user [Shadowwynd] shows us a great way to
build a joystick/mouse
device for people with special accessibility needs. When faced with a case that involved a man with very limited mobility as well as a limited budget, [shadowwynd] set out to find a cost effective solution to computer navigation. They found that his client could use a commercial joystick mouse, but the cost was quite high at over $400. So instead of just purchasing that, they bought a USB game pad and built their own version. They managed to reduce the cost to roughly $45. While extending the buttons and joystick from a gamepad might not be groundbreaking, we feel that this project is the epitome of hacking. Great job [Shadowwynd] keep up the good work.
| 8
| 8
|
[
{
"comment_id": "329182",
"author": "arfink",
"timestamp": "2011-02-10T17:06:12",
"content": "Excellent work, I admire the craftmanship and motivation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329214",
"author": "xeracy",
"timestamp": "2011-02-10T17:52:57",
"content": "The one thing i hear from my friends who work with special needs children is that the technology that would be most beneficial to them are priced so ridiculously high that they are unaffordable for most families. Theres no reason a touchscreen soundboard should cost thousands of dollars like they do, because an iPad can do it AND STILL BE AN iPAD. While hacks like this article come around every so often, I am supprised that there isn’t more of a community based around providing free or open-source devices/plans/software for the special needs community and their families.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329215",
"author": "amishx64",
"timestamp": "2011-02-10T17:53:41",
"content": "$400?!?! That seems like extortion.Great job btw. Very professional looking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329320",
"author": "Mikey",
"timestamp": "2011-02-10T20:01:55",
"content": "I believe the $400 and thousands of dollars comments. It’s fucked up, but it makes “business sense.”If more people buy it, it can be made cheaper, if less people buy it, it drives the cost up. You have to pay salaries of the engineers (especially if you plan on building anything new, rather than just selling the old stuff…) and less people buying it, means less profits.If all you want is sound and a touch screen I say buy a netbook for a couple hundred (or like you already pointed out an over-sized iPhone that costs more and can’t make calls… or an android tablet… etc etc)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329425",
"author": "xeracy",
"timestamp": "2011-02-10T21:31:53",
"content": "@Mikey – It is only in the last few years that netbooks have become quite affordable, but there is still the barrier of software and interfacing. There are people who will take the time to make a Family Guy Soundboard app and put it online for free, yet they will charge an exorbitant amount for it if its marketed as a tool for the developmentally disabled rather than as a joke. If the joke was worth one’s free time, why would that same effort not be worth helping someone who can’t help themselves?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329539",
"author": "anonymus",
"timestamp": "2011-02-10T22:15:53",
"content": "Awesome hack.I’ve had to look at some really simple accessible stuff, and the cost was horrific.Simple things like a big button with USB end up being really expensive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329583",
"author": "xeracy",
"timestamp": "2011-02-10T23:16:34",
"content": "> Simple things like a big button with USB end up being really expensive.they aren’t expensive. the products just cater to a niche market and are thus justified (in the eyes of the manufacturer/distributor) in charging a premium for meeting someone’s needs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329613",
"author": "PocketBrain",
"timestamp": "2011-02-11T00:03:09",
"content": "Reminds me of me. I made an old SNES fighter stick work with my PS2, using a $4 PS controller. Same basic concept, pulled out the bare PCB and soldered to the switch lands. I connected it with a 40-pin .100 header so I could just open it up and unplug/plug to use it as an SNES controller again. With a USB/PS2 controller adapter, it works with PS3 and PC. I like the accessibility angle; would love to implement with the same noble intent.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.468547
|
||
https://hackaday.com/2011/02/10/backlit-buttons-and-panels/
|
Backlit Buttons And Panels
|
Kevin Dady
|
[
"cnc hacks",
"LED Hacks"
] |
[
"backlit",
"panel"
] |
“Kick the tyres & light the fires” is a blog by [Ruscool Electronics] that is focused on building a cockpit simulator from scratch, and while the blog is loaded with all sorts of nifty information, reader [Brian] pointed out one entry which explains how to make
back-lit control panels out of acrylic sheet
, and a CNC machine.
The parts start off as clear acrylic, and cut to shape and size. Next up is a thick, but uniform coat of paint so the panels are opaque , then its back off into the CNC machine for engraving. What is engraved is now a frosty white, ready for leds behind.
The end result looks fantastic and professional, though, we are left thinking of how to pull off the same look, sans CNC.
Ideas?
| 17
| 17
|
[
{
"comment_id": "329133",
"author": "dirtyoldman",
"timestamp": "2011-02-10T16:15:01",
"content": "use a stencil while applying paint?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329134",
"author": "andres",
"timestamp": "2011-02-10T16:15:19",
"content": "I’ve had some success on some mock ups using a laser printer onto tape. you can then use a second piece of tape to lift off the graphics and layer it onto whatever surface you want.you end up with a piece of tape on whatever it is you are modifying, but if you trim correctly this isn’t noticeable and in terms of mock ups it is great because you can peel off and put a new one on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329136",
"author": "andres",
"timestamp": "2011-02-10T16:18:08",
"content": "Oh, and obviously if you got it, a laser cutter could work even better than a CNC, depending on your material and your paint.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329193",
"author": "Daley",
"timestamp": "2011-02-10T17:19:52",
"content": "Would using something like petroleum jelly work as a mask? Once the paint is dry, a quick wipe would remove any painted jelly leaving the rest of the painted surface intact.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329208",
"author": "CNCRouterman",
"timestamp": "2011-02-10T17:33:09",
"content": "Now, for a slightly biased opinion, the “Best” solution, is to call up a shop like mine to have the CNC work done. CNC routers do a fine job on most plastics.If you simply can’t get access to a CNC then:I’m in agreement with “dirtyoldman”, stencil. This method is often used my sign makers, use a piece of cut vinyl to mask off a surface before painting or sandblasting. So, using suitable masking, one could take either approach, mask then paint, or paint then mask then sandblast.I just don’t see how a laser will be an effective solution to removing paint without cutting through the plastics. But I’m a Router guy, not a laser guy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329209",
"author": "Brian",
"timestamp": "2011-02-10T17:38:12",
"content": "How about print the art on transparency sheet in a laser printer, text is ‘white’ and lettering reversed. Then glue it to a sheet of opaque plexiglass. Add another layer of plexi for durability.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329217",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-10T17:56:16",
"content": "“I just don’t see how a laser will be an effective solution to removing paint without cutting through the plastics.”Raster mode.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329220",
"author": "johnmc",
"timestamp": "2011-02-10T17:58:27",
"content": "Materially simple. Do it like industry would do it — reverse mask silk screen.1/ Make a mock up of your panel in the graphics software of choice.2/ Output a positive to to acetate, place on the back of your plastic cover. Downside is it may not look right if switches need to be torqued down. Continue…3/ Output a photo reverse to a sheet of acetate.4/ Build a cheap frame for a silk screen. See Instructables.5/ Use the reverse, flipped, to expose a photo resist mask for the screen.6/ Lay down several coats of your paint on the back of the panel.The hardest part to source will probably be a very fine polyester silk screen fabric needed and photo resist film. The rest, wood, staples, squeeqe, tape and paint can be found in any hardware store.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329231",
"author": "blaine",
"timestamp": "2011-02-10T18:08:42",
"content": "Sand and mask off the areas on the acrylic before painting. Then you just need to remove the mask and you are ready to go. I have done this in Theater for signage and for controll panels for the last 15 years.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329317",
"author": "cultrocker",
"timestamp": "2011-02-10T19:59:24",
"content": "GE Lexan is the standard for industrial control panels. Back printing with multiple layers of ink using silkscreening is the traditional way and in volume still the best. Screen layers for graphics as needed, one strike for each color and then screen on the background color. Leave areas in background open for LCD panels, LEDs and displays. Screen the front with frost and clear in two strikes and then UV cure. Emboss using a die set to raise edges on buttons or add stainless steel domes to provide a snap action to each key. Die cut to size or use a rotary paper cutter for straight edges. Use 3M sheet adhesive to stick the finished overlay to the panel structure. The panel can be made to carry the electronics on a circuit board mounted behind spaced out with standoffs. LED shine thru graphics for active display or clear openings in the background as indicator lamps. Layered construction like this allows the overlay to be changed at any time without altering the panel or circuit board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329347",
"author": "walt",
"timestamp": "2011-02-10T20:10:01",
"content": "this is excellent!ive taken my dremmeling skill as far as i can and i never get that perfect look when im done. cnc and automated engraving machines seem too expensive for the average consumer or hobbyist. where or how does one get started in machining?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329413",
"author": "stuntmonkey",
"timestamp": "2011-02-10T21:08:04",
"content": "I just painted some backlit buttons last night. Cut them out with the laser, then etched the mirrored version of the design I needed. Paint the buttons opaque, then peel off the protective paper from the plexi. The paint is on the back of the buttons this way, but it looks cool. Plus you can use some vellum to diffuse the light.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329498",
"author": "Jelle at protospace",
"timestamp": "2011-02-10T22:00:54",
"content": "I agree with all the laser guys here, using a laser to selectively remove the paint and cut out the button holes is a very effective use. The only downside is you cannot route recesses, but that can be dealt with two layers of thinner material.Using a router is cumbersome, most likely because the toolchain is much harder to use. A (good) laser just acts as a printer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329591",
"author": "Cricri",
"timestamp": "2011-02-10T23:33:26",
"content": "Very professional look, impressive. Thumbs up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329735",
"author": "tommy",
"timestamp": "2011-02-11T04:21:34",
"content": "how about old school engraving with a pantagraph rig? fairly easily made with a dremel or arbor cutter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330577",
"author": "Ferm",
"timestamp": "2011-02-11T23:28:00",
"content": "Doing this with a cnc is just like making cnc circuit boards using a pointy 90 degree pcb bit to just barely take enough paint off the top. The trouble is getting your plexi piece completely level.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333709",
"author": "Daniel Garcia",
"timestamp": "2011-02-15T11:49:02",
"content": "I’ve used clea perspex and laser printed labels to get the same effect. you need to black out one lable with a felt tip pen then stick another label on top of it, lining up the printing. A bit tricky but the effect is pretty good.http://www.flickr.com/photos/protostack/2940562655/in/set-72157616598111186/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.63689
|
||
https://hackaday.com/2011/02/10/rechargeable-battery-capacity-tester/
|
Rechargeable Battery Capacity Tester
|
Mike Nathan
|
[
"Tool Hacks"
] |
[
"arduino",
"atmega",
"battery"
] |
If you are like most people, you likely have a mixed pile of rechargeable batteries sitting around with no idea as to what kind of charge they can hold. You could watch a voltmeter for a few hours while you drain each and every battery, noting when it drops below its stated voltage – but then again, you have a life. Instead of wasting away in front of his multimeter, [BrianH] decided he would build an
automated battery capacity tester
to do the job for him.
He created a simple circuit that drains any AA battery, NiMh or NiCd, and records its useful capacity in milliamp hours. Since the ATMega168 microcontroller used has 6 analog/digital converters on board, he figured that he might as well design his tester to measure the capacity of three batteries simultaneously. [BrianH] wired the meter up to an old Nokia LCD, then moved his project to a perfboarded ATMega, freeing up his Arduino for other tasks. Once he had things reassembled, he packed it all into a handsome wooden box.
His writeup is chock full of details and source code, so be sure to check it out. We have video of the charger in action after the jump.
[gigya src=”
http://www.metacafe.com/fplayer/5929960/rechargeable_battery_capacity_tester.swf”
; width=”470″ height=”345″ quality=”high” wmode=”transparent” allowFullScreen=”true” allowScriptAccess=”always” ]
| 21
| 21
|
[
{
"comment_id": "329087",
"author": "swighton",
"timestamp": "2011-02-10T15:10:40",
"content": "“He created a simple circuit that drains any AA battery”That sort of ruins the point of knowing the capacity of the battery doesn’t it? ;)Just kidding – I would use this all the time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329098",
"author": "Hacksaw",
"timestamp": "2011-02-10T15:23:58",
"content": "Would be a useful tool for comparing different battery “revival” methods.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329102",
"author": "Jordan",
"timestamp": "2011-02-10T15:27:04",
"content": "I know, this would be incredibly useful. Now if only some one would mass-produce them….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329109",
"author": "Chic",
"timestamp": "2011-02-10T15:42:29",
"content": "@Jordan“I know, this would be incredibly useful. Now if only some one would mass-produce them…”Google La Crosse Hi spec intelligent charger….expensive but well worth it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329116",
"author": "BP",
"timestamp": "2011-02-10T15:58:42",
"content": "I’m looking for a way to get the last power out of of the batteries when one of the set is done, or there is not enough to run the device it is in but still enough for some other tasks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329176",
"author": "Aero",
"timestamp": "2011-02-10T16:54:28",
"content": "I’ve replaced old rechargeables with Eneloop batteries and don’t have to worry about that anymore.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329183",
"author": "Jakezilla",
"timestamp": "2011-02-10T17:09:35",
"content": "+1 on the La Crossehttp://www.amazon.com/Crosse-Technology-BC-9009-AlphaPower-Battery/dp/B00077AA5Q/ref=sr_1_1?ie=UTF8&qid=1297354068&sr=8-1Not as cool as rolling your own, but much quicker :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329204",
"author": "Cricri",
"timestamp": "2011-02-10T17:26:28",
"content": "Would be nice to have a 4 batteries clip instead as AA are mostly used in pairs, and there’s plenty of space on the screen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329266",
"author": "Slipster",
"timestamp": "2011-02-10T18:53:52",
"content": "Confused? He states that he used an FET IRL3103S and that any similar device should work as long as the Drain-to-Source On-Resistance is low.Spec Sheet shows 12Meg ohms for the RDSon resistance for that device whereas an IRF510 has .54 ohms.How is 12Meg Ohms “low” resistance? Did I miss something?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329269",
"author": "jerm1386",
"timestamp": "2011-02-10T19:00:16",
"content": "@Slipster. that’s 12 milli-ohms, or 0.012 ohms milli is m, Mega is Ma FET with 12MegOhm RDSon would be just about useless",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329286",
"author": "Slipster",
"timestamp": "2011-02-10T19:25:06",
"content": "m vs MNow why did that escape me?D’oh!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329323",
"author": "therian",
"timestamp": "2011-02-10T20:03:32",
"content": "I learned that battery internal resistance is much better indicator of life, for example enveloop lose less than 100mah in a year but internal resistance doubles after 2-3 month of ruff use and make cell useless for high power",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329545",
"author": "bunedoggle",
"timestamp": "2011-02-10T22:23:56",
"content": "FYI: Thinkgeek has chargers that give you the capacity after charging. I think it was $30 or $40.Nice work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329565",
"author": "ShutterCat",
"timestamp": "2011-02-10T22:55:10",
"content": "I’ve got one of those chargers from maha/lacrosse that’ll test and cycle 4xAA/AAA and it’s nice if you maintain a large set (fleet? array?) of cells. When I retired my former camera that used 6xAA (Minolta with battery grip), my use for it dropped way off but it’s still really useful for my pile of GMRS radios.I like this DIY solution quite a lot for its quality and customizability. Good execution, BrianH",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329641",
"author": "crashsuit",
"timestamp": "2011-02-11T00:50:43",
"content": "@bunedoggle Thanks for the tip on ThinkGeek. I was thinking +1 to earlier comment that these’d be commercially viable. I’ve got so many different NiMH AAs and AAAs around, it’d be good to know which are still OK.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329654",
"author": "Andrew",
"timestamp": "2011-02-11T01:11:54",
"content": "I use Eneloops. I have marked each one with a letter (A-Z) because otherwise they all look the same. I have made a long, narrow, sloped tray. When a battery is used up (AA or AAA) I charge it up and put it in one end of the tray (at the high end of the slope). When I want a new battery I take one from the lower end. This means I cycle my batteries evenly, and I know the ones in the tray are fully charged.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330132",
"author": "Garbz",
"timestamp": "2011-02-11T14:09:27",
"content": "@bunedoggle do you trust the thinkgeek charger? I mean how do you get a capacity of a battery that is supposedly flat when you put it into the charger?I’d be interested in combining these with an impedance test. A lot of commercial chargers as well as having a complete discharge test function for batteries also draw a very high power pulse from the battery to gauge their internal impedance.I have plenty of batteries here which have great life performance and last for months in my mouse, yet put 4 fully charged cells into a camera flash and they fire about 3 shots before giving up due to high impedance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331045",
"author": "Bernt Weber",
"timestamp": "2011-02-12T07:39:31",
"content": "… was thinking about such battery testers for a while now, for two very different applications: AA batteries and big lead-acid batteries (same problem).One feature I imagined was to be able to control the discharge current by PWMing the MOSFET, with appropriate filtering to make it look DC from the battery. This would allow to evaluate capacity depending on discharge current. (Does that battery still work for my high current digital camera ? …or measuringPeukert’s constantfor lead-acid).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338854",
"author": "Bob",
"timestamp": "2011-02-21T18:49:50",
"content": "I dont get this: He states that he was limited to testing three batteries at a time, as he has to use two of the six AVR microcontrollers analogue inputs for monitoring each battery?Why do you need to measure the voltage and current of the battery since the resistance of the load is known? Could you not just measure the voltage on the load, and get the microcontroller to calculate the current through the load using I=V/R?That way you could simultaneously test 6 batteries instead of three.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "400043",
"author": "vidhya",
"timestamp": "2011-05-31T09:05:45",
"content": "TO FIND OUT THE AVERAGE DROP OF THE BATTERYThe voltage across the battery will be recorded when it was inserted for the first time. Then it is allowed to discharge for a particular time. From the 2nd time onwards the outputs will be added to together. Using this added up value we will find out the average voltage across the battery. Then the difference between the firstly recorded value and the average value will be finding out and displayed as the average drop of the battery.TO FIND OUT THE CAPACITY OF THE BATTERYHere we will divide the last recorded value by the average drop. It will give the information about how long the battery will last from the last recorded value, ie., the battery capacity will be given in time specifications",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1016303",
"author": "D Aichner",
"timestamp": "2013-06-15T22:41:08",
"content": "I live in San Antonio, Texas and I am wanting info on where to get a battery tester for rechargeable batteries 74V 1150mah 8.6 vh",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.582454
|
||
https://hackaday.com/2011/02/10/driving-a-salvaged-lcd/
|
Driving A Salvaged LCD
|
Kevin Dady
|
[
"Android Hacks"
] |
[
"lcd"
] |
[bill2009] wanted to reuse some common seven segment LCDs, but the question was how to drive them. Armed with a couple application notes from [Microchip] and [Atmel], an oscilloscope and an Arduino, he has made
a proof of concept
which shows its not super hard to drive those little reflective LCDs that so many devices have.
First finding out that these things are indeed multiplexed, he went on to what is needed to drive them, which is about +-2 volts difference from the backplane, next up was to find a donor, which he found readily at Staples, in the form of a “clocky” style run away alarm clock.
After poking around watching what signals do to the different segments on the LCD he whipped up a little circuit to control the display from the Arduino. The positive and negative voltages the segments require are made possible by the use of a set of pull down resistors, and switching pin modes on the micro controller.
These small type segmented LCDs are everywhere, and being able to use them is a big bonus.
| 21
| 20
|
[
{
"comment_id": "329041",
"author": "Mike",
"timestamp": "2011-02-10T14:20:29",
"content": "Doner?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329065",
"author": "Philippe",
"timestamp": "2011-02-10T14:46:25",
"content": "I think he meant donor, not kebab.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329066",
"author": "Jordan",
"timestamp": "2011-02-10T14:46:27",
"content": "I know, right? Also:“Armed with a couple application notes, an oscilloscope[sic] and an Arduino,…”“which shows its[sic] not super hard”“a set of pull down resistors,[sic] and switching pin modes”Try:“…oscilloscope, and…”“…shows it’s not…”“…resistors and switching…”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329067",
"author": "Rincewind",
"timestamp": "2011-02-10T14:46:33",
"content": "Donor ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329096",
"author": "nes",
"timestamp": "2011-02-10T15:21:56",
"content": "Nice proof of concept but any DC bias on the LCD at all, if the duty cycle is not exactly 50% on average, will cause the liquid crystals to migrate toward one electrode or other rendering it useless after a while.Seeing as the Arduino is AVR based anyway, maybe a ATMega169P or 329A could be substituted as that gives you the proper built-in LCD driver and the LCD can stay on in sleep mode.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329103",
"author": "salec",
"timestamp": "2011-02-10T15:28:32",
"content": "@Mike: Probably a typo. “Donor” would make sense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329219",
"author": "Daid",
"timestamp": "2011-02-10T17:57:37",
"content": "I’ve been wondering about the reverse of this of a while. Can you snoop on an LCD by reading the lines back with a uC?For example my thermostat has an LCD, and I want to read it with an uC (so I can also control the buttons and set a new temperature)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329276",
"author": "Ekaj",
"timestamp": "2011-02-10T19:13:33",
"content": "I’m trying to figure out how this is a “proof of concept”… People have been doing this for decades…?Using an atmel processor is overkill, but meh. Whatev.One thing I am wondering is who is silly enough to call an atmel processor on a proto board an “arduino” – LOL!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329318",
"author": "Tropica",
"timestamp": "2011-02-10T20:00:46",
"content": "@EkajEven though it has been done before it can still be a proof of concept. About the Arduino thing I dunno, maybe it uses the arduino bootloader? :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329402",
"author": "zool",
"timestamp": "2011-02-10T21:00:47",
"content": "good to know i guess",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329577",
"author": "js",
"timestamp": "2011-02-10T23:10:03",
"content": "@Ekaj“One thing I am wondering is who is silly enough to call an atmel processor on a proto board an “arduino” – LOL!”If you took the few seconds to read the article, he is using an atmel processor with the arduino boot loader and is using the arduino IDE to build and load the code.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330189",
"author": "bill rowe",
"timestamp": "2011-02-11T15:14:21",
"content": "First, @the submitter: Thanks Kevin!@nes “Nice proof of concept but any DC bias on the LCD at all, if the duty cycle is not exactly 50% on average, will cause the liquid crystals to migrate toward one electrode or other rendering it useless after a while”I was just happy it worked as designed. There will be a *bit* of dc bias I think, the middle voltage is about 5% low. In my final setup I’ll measure carefully and choose my resistors.“Seeing as the Arduino is AVR based anyway, maybe a ATMega169P or 329A could be substituted as that gives you the proper built-in LCD driver and the LCD can stay on in sleep mode.” I was aware that there were avrs with drivers but i didn’t think they were current. The 169/329 look like great big surface mount things. But thanks, I’ll look at them.@daid:reading the lcd is a really cute idea and i’m sure you could do it – i’m going to try.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330250",
"author": "Ekaj",
"timestamp": "2011-02-11T17:01:59",
"content": "@jsYeah, I read it – He’s using an ATMEL processor. Not an ARDUINO processor. Just so you know.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330534",
"author": "ColinB",
"timestamp": "2011-02-11T22:41:53",
"content": "Sure, millions of devices already drive this type of LCD, but this is unique because he’s using a general-purpose microcontroller to drive the LCD segment voltages directly–I have never seen this done before: it always involves a special-purpose LCD driver chip or microcontroller peripheral. In addition, he figured out how to use a scavenged LCD on his own. One of the more worthy hacks I’ve seen for a while!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330709",
"author": "Yen",
"timestamp": "2011-02-12T01:26:10",
"content": "@daid actually, one of my upcoming hacks has that as a core idea (reading an LCD, and controlling buttons). It’s a custom LCD, though, so I’m not sure how difficult figuring out the multiplexing will be.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330792",
"author": "Yen",
"timestamp": "2011-02-12T03:15:29",
"content": "from the linked application notes, on the section on multiplexing: “The last time Microchip investigated high pin countpackages, 30,000+ was not an option.”:D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331248",
"author": "Bill Rowe",
"timestamp": "2011-02-12T13:48:26",
"content": "If you want some hints post a picture of the lcd and connectors in the thread below or post a pointer to it here and i’ll make some starting guesses for you. Usually the backplanes are at one end of the row of connectors and there will be either three or four. I probably couldn’t have figured it out without a scope but in principal a logic analyzer or a micro with ADC could do it.Also, it occurs to me that doing a full read of this clock lcd would require four analog inputs for the backplanes and two more for each digit and the dip version of the avr chip only has six. You might find some redundancy in a seven segment display that would let you do better but not much.http://arduino.cc/forum/index.php/topic,51464.0.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "370138",
"author": "spiritplumber",
"timestamp": "2011-03-30T00:23:10",
"content": "Sweet hack! I wonder if it would benefit from filter caps on the analog line….It shows up under android hacks for some reason.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "431588",
"author": "Leah Maestri",
"timestamp": "2011-08-10T02:15:06",
"content": "Hi Kevin,My name is Leah Maestri – I’m a master student from Simon Fraser University, Canada. I’ve used your digital alarm clock example as part of a conference paper that’s been accepted – the conference is called Creativity and Cognition 2011. Website:http://dilab.gatech.edu/ccc/?page_id=161(See Accepted paper: Understanding Repair as a Creative Process of Everyday Design)Will you permit me to use the image above in this paper? I’ve used your hack as an example of how people can easily resource everyday materials to make and repair digital objects.Thanks for your consideration and all the best,Leah Maestir",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "432145",
"author": "Bill Rowe",
"timestamp": "2011-08-10T23:16:05",
"content": "@leah: certainly you can use it. Thanks for asking.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "436476",
"author": "Leah Maestri",
"timestamp": "2011-08-17T04:35:03",
"content": "@Bill: Thanks so much!",
"parent_id": "432145",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,279.745226
|
||
https://hackaday.com/2011/02/10/imploding-vacuum-tubes-for-science/
|
Imploding Vacuum Tubes For Science
|
Chris Nelson
|
[
"Parts"
] |
[
"bulb",
"photomultiplier",
"vacuum tube"
] |
The researchers at Brookhaven National Laboratory are looking for a way to harden photomultiplier tubes. In order to make a more durable tube the researchers decided it would be a good idea to first
observe how the tubes are failing
. So they got their hands on an old torpedo test bay and smashed some bulbs inside of it. Check in after the break for some high fps bulb smashing.
Photomultiplier tubes are used in massive quantities to detect the highly elusive neutrino particle. The problem is when you have 50,000 photomultipliers submerged in pressurized water the the collapse of just a single bulb can cause a shock wave of destruction. This is what happened in
japan in 2001
when a maintenance worker unknowingly compromised a single bulb in a 11,000 bulb array. When the tank was repressurized that single compromised bulb caused them to lose 7,000 more.
[via
wired
]
[youtube =
http://www.youtube.com/watch?v=xBDT47polxo&feature=player_embedded&w=470%5D
[youtube =[youtube =http://www.youtube.com/watch?v=OLCQGG1fD2M&feature=player_embedded&w=470]
[youtube =
http://www.youtube.com/watch?v=C5NO_t9crBE&feature=player_embedded&w=470%5D
| 12
| 12
|
[
{
"comment_id": "329015",
"author": "jaqen",
"timestamp": "2011-02-10T13:33:32",
"content": "“does it fail under pressure?” doesn’t sound as catchy as “does it blend?” :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329031",
"author": "trebu",
"timestamp": "2011-02-10T13:57:42",
"content": "how about “Does it ‘plode?” just about as catchy, and more versatile!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329064",
"author": "Matt Fulghum",
"timestamp": "2011-02-10T14:40:03",
"content": "This is pretty much exactly what my lab does for research. I oughta tell my boss… maybe we could work something out with BNL.Underwater shock waves are awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329080",
"author": "Grovenstien",
"timestamp": "2011-02-10T14:59:10",
"content": "will it plode!!! exquisite.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329110",
"author": "Josh",
"timestamp": "2011-02-10T15:44:09",
"content": "Pop one of them and it starts a chain reaction? Sounds like the real-life version of BubblePop or one of the many chain-reaction games like that, only extremely expensive. And cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329113",
"author": "fotoflojoe",
"timestamp": "2011-02-10T15:54:20",
"content": "Ya know, I did this when I was a kid, and got labelled “destructive”. These guys do it, and they’re labelled “scientists”…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329118",
"author": "Yossarian",
"timestamp": "2011-02-10T15:59:42",
"content": "Breaking tubes! Since when is that a hack?! Is this implode tubes-a-day now?!?!?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329282",
"author": "roswellaliens",
"timestamp": "2011-02-10T19:17:05",
"content": "haha.. a related but illegal “experiment” is to obtain a surplus intact colour CRT, carefully float it out to sea then throw bricks etc at it.Frowned upon by enviro-whiners but almost as fun as fluorescent tube + plasma lamp driver light-saber fights.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329287",
"author": "dbear",
"timestamp": "2011-02-10T19:27:33",
"content": "I wonder what 7000 multiplier tubes imploding sounds like? How do you say “oh @$#$, what was that?” in Japanese?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329416",
"author": "yetihehe",
"timestamp": "2011-02-10T21:14:19",
"content": ">I wonder what 7000 multiplier tubes imploding sounds like?Sounds very expensive ;)How do you say “oh @$#$, what was that?” in Japanese?Yabai, nanideshita ka?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330024",
"author": "octel",
"timestamp": "2011-02-11T12:00:19",
"content": "@roswellalienswhat does it do besides crack a little bit, fill with water, and sink?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330883",
"author": "Eddie",
"timestamp": "2011-02-12T04:50:00",
"content": "And this… is why I <3 BNL.RHIC, LinAC, and now imploding things, not necessarily in that order FTW.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.687275
|
||
https://hackaday.com/2011/02/11/bellows-camera-to-dslr/
|
Bellows Camera To DSLR
|
Kevin Dady
|
[
"digital cameras hacks"
] |
[
"camera",
"digital",
"dslr"
] |
[Jonas Kroyer] is a digital photographer, with a fascination with old cameras and pairing the two together
sounded like a fun idea
. Searching around on the net he fell in love with the design of the
Zeiss Ikon Ikonette (1929-31)
, and found one with a chipped lens.
After dismantling the camera completely, it was found out that he needed the lens/shutter mechanism, the bellows, and the rails that allow the lens to slide back and forth. The bellows were glued to the body of the camera, but some careful prying and they were quickly removed unharmed. Next was to make an adapter so he could attach the lens to a digital DSLR camera, a steel plate and a Nikon Bayonet swiped off of a no name lens holds everything together. Rails were reattached using rivets, and the bellows were glued onto the plate. Other mods include adding small brass knobs to aid in adjustments, and a spring from a ballpoint pen to hold the original shutter open.
The new old lens is said to be easy to operate, and produces some beautiful images. Though since the lens does not have any modern day coatings it does have its drawbacks, like a diamond shaped flare in the middle of the image, which can be good when you want it, or partially removed in photoshop if you don’t.
| 4
| 3
|
[
{
"comment_id": "330236",
"author": "alan",
"timestamp": "2011-02-11T16:31:30",
"content": "http://www.jonaskroyer.com/photography/wp-content/gallery/ikonette/_DSC5821.jpglove how that picture turned out",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330339",
"author": "Tom",
"timestamp": "2011-02-11T18:55:09",
"content": "you Could just put the lens on a set of macro bellows, then you don’t have to damage the camera.Most of these old folders use retaining rings that you can just unscrew. I did this once with an old broken Goerz Tenax medium format folder and some m42 screw mount bellows. I made a hole in an m42 body cap to make an adapter.you don’t have to worry about the bellows cropping th image as the size of the sensor in a digital camera or even the film in a 35mm is cropping it already",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2977847",
"author": "alyn lewis",
"timestamp": "2016-04-04T20:48:11",
"content": "i have some large format cameras and nikon camera what is a m42 bellows and body cap?",
"parent_id": "330339",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330641",
"author": "xwhatsit",
"timestamp": "2011-02-12T00:36:19",
"content": "I use an old folder regularly; not that old, it’s a 6×9 Agfa Record III. Bit better lens, but still: there is no way that diamond flare should be there. It’s not because of the lack of coatings or ED glass or anything else.I’d say the chipped lens that he talks about would have much more to do with it! These old triplets took very sharp images when stopped down. And an uncoated lens will produce more flare, yes, but not a weird diamond thing; you simply get more veiling flare.Older uncoated Leica lenses are prized for their rendering and so-called “glow”. Check out the work of James Ravilious athttp://www.jamesravilious.com/who used uncoated lenses with some home-made lens hoods to minimise veiling flare.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.785325
|
||
https://hackaday.com/2011/02/11/led-dog-collar/
|
LED Dog Collar
|
Kevin Dady
|
[
"LED Hacks"
] |
[
"dog"
] |
LEDs make everything better, right? What about your dog? [Ken] tries it out on one of his frisky dogs who loves to run whenever she gets out with a
LED dog collar
. It’s an off the shelf dog collar sporting 5 blue LEDs, and is powered by an attiny2313 micro controller, which makes adding / changing light sequences quick, easy, and also allows for future upgrades. Small PCB’s are made and to help keep minor amounts of the wild from frying. the electronics parts are encased in hot glue, and the whole thing is powered by 3 AAA batteries.
While it’s an early test of the device, and there is more to come, like an automatic trigger as [Sunshine] bolts for the door, but it seems like a great help while chasing after a runaway dog in the dark.
Join us after the break for a quick video.
[youtube=http://www.youtube.com/watch?v=sZmrRN272gI&w=450]
| 20
| 20
|
[
{
"comment_id": "330196",
"author": "nate",
"timestamp": "2011-02-11T15:32:24",
"content": "change the leds to red and find a way to determine with a sensor when the dog is about to attack (growl detector maybe?), and you have a modern-day hound of the baskervilles!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330197",
"author": "Joe Schalk",
"timestamp": "2011-02-11T15:33:02",
"content": "I love it! I have dreamed about these.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330200",
"author": "fotoflojoe",
"timestamp": "2011-02-11T15:36:26",
"content": "Since the LEDs are blue, does that mean Sunshine is a police dog?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330201",
"author": "Aaron",
"timestamp": "2011-02-11T15:36:33",
"content": "The collar is nifty. The dog getting top billing alongside the guy who did the hack? That’s super awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330205",
"author": "brem",
"timestamp": "2011-02-11T15:42:09",
"content": "I use something simular from £-land. I have a german shepard and need to use 2 as they are used for children arm’s£2 is not bad and bat lasts 4-5 month’s CR32Then im left with 12 led’s to play with",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330216",
"author": "Link",
"timestamp": "2011-02-11T16:26:15",
"content": "http://www.meritline.com/pet-collar-3-modes-red-led-flashing-light—p-63508.aspx$3.99 EnJoY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330235",
"author": "patman2700",
"timestamp": "2011-02-11T16:30:21",
"content": "Yep, proper grammar usage has officially taken a hike.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330264",
"author": "Reggie",
"timestamp": "2011-02-11T17:23:25",
"content": "lasers make everything better, leds just blink (which is attractive but not as good as lasers).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330289",
"author": "Whatnot",
"timestamp": "2011-02-11T17:51:45",
"content": "In many places you cannot carry blue lights on vehicles since they are reserved for the cops, I wonder if police dogs also have the exclusive right to blue led collars :)But ‘link’ is right, you can buy collar attached lights and lighted collars in every pet store for quite a while already, years.in fact I’ve seen light to attach to collars in supermarkets even.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330403",
"author": "Paul",
"timestamp": "2011-02-11T20:02:14",
"content": "http://www.youtube.com/watch?v=-WbGc8uNsHY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330428",
"author": "Aaron",
"timestamp": "2011-02-11T20:32:21",
"content": "Fun. After seeing this, I’m surprised my submission never made it through:http://limitedslip.net/projects/christmas-dog-collar/Maybe its because I’m lame and don’t have a video. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330559",
"author": "leadacid",
"timestamp": "2011-02-11T23:04:20",
"content": "Dogs are awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330734",
"author": "ChalkBored",
"timestamp": "2011-02-12T02:02:55",
"content": "@WhatnotImagine a dog chasing a car down the road, but now it’s wearing red/blue flashing LED’s.I’m pretty sure it will have a better chance of actually catching the car.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330836",
"author": "Cyberteque",
"timestamp": "2011-02-12T03:39:07",
"content": "I would love to see a long exposure photo of dog running around!Might have to build one of these to stop one of my neighbours giving me the “you and your dog need to be wearing reflective vests” lecture.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330839",
"author": "therian",
"timestamp": "2011-02-12T03:42:15",
"content": "what a sexy dog",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330861",
"author": "tedk",
"timestamp": "2011-02-12T04:15:34",
"content": "wow, did anyone else realize that the article seems to be made by someone blindly typing with their elbows? H@D sure could use a few more competent writers….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330910",
"author": "Whatnot",
"timestamp": "2011-02-12T05:26:16",
"content": "@ChalkBored that will freak out anybody, especially if they just smoked some weed :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332034",
"author": "MatsSvensson",
"timestamp": "2011-02-13T12:50:26",
"content": "Cool, good things dogs don’t get epilepsy?I guess the next step is to put a siren on it too.Imagine a pack of dogs running down the street with those on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333150",
"author": "ltkenbo",
"timestamp": "2011-02-14T21:25:20",
"content": "@WhatnotI’ve seen those collars before, they are not super bright, plus they don’t do cool patterns like the one I made :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "337282",
"author": "Anna Celestino",
"timestamp": "2011-02-19T06:37:01",
"content": "Wow, whoever invented LED collars is a genius. My dog is particularly hard to find in some instances, and I believe this LED collar will make it easier for me and my pooch.I shared it all here athttp://www.seefido.com/cooldogblog/?p=94Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.933211
|
||
https://hackaday.com/2011/02/11/nesbot-video-game-automation/
|
NESBot Video Game Automation
|
Mike Nathan
|
[
"Arduino Hacks",
"Nintendo Hacks"
] |
[
"automation",
"nes",
"super mario"
] |
If you happen to enjoy video games, but don’t actually like playing them, boy do we have the hack for you! [pjgat09] shows us how, armed with an Arduino, you can
force a Nintendo to play games by itself
, not unlike an old-time player piano. The hack involves programming an Arduino to accept commands mapped out in “movies”, which are actually scripted sets of button presses that one would perform while playing a game. These sorts of scripts are available from
TASVideo
, a community specializing in “tool assisted” speed runs of video games. These movies are typically used with emulators, so there are some adjustments that need to be made in order to make them work with a console, since the button presses are mapped to each frame that is drawn on the screen. While we are not sure quite how useful this hack is, it is a pretty novel concept. You can see video of the 5-minute SMB speed run after the jump.
[youtube=http://www.youtube.com/watch?v=2JNf0lAo3Ns&w=470]
| 17
| 17
|
[
{
"comment_id": "330171",
"author": "Gert",
"timestamp": "2011-02-11T14:27:49",
"content": "Awesome, i’ve been thinking about making one of these automated controllers for years.I just need to find an NES.By the way does anyone know how much watt an NES consumes? I can’t find this on the net.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330177",
"author": "MrX",
"timestamp": "2011-02-11T14:45:20",
"content": "Awesome! That makes me want to program a genetic algorithm to find the fastest Mario solution, that would take weeks but who cares?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330181",
"author": "Daniel",
"timestamp": "2011-02-11T14:56:30",
"content": "That’s neat, but it totally doesn’t count as playing it through on an NES in 5 minutes. Look at 3:54–my NES doesn’t let me wall-jump like that! Or look at 5:10!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330182",
"author": "IceBrain",
"timestamp": "2011-02-11T15:01:52",
"content": "@MrX: sorry, already been done:http://forums.tigsource.com/index.php?topic=15664.0(although it would be interesting to connect it to an actual NES)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330194",
"author": "bWare",
"timestamp": "2011-02-11T15:27:45",
"content": "@Daniel 3:54 is a legitimate glitch even on real hardware. Pressing jump at precisely the corner of the block (i.e with 60Hz accuracy) dose work, to do it that may times in a row is suspicious.5:10 is underwater.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330202",
"author": "Daniel",
"timestamp": "2011-02-11T15:37:29",
"content": "@bWare “3:54 is a legitimate glitch even on real hardware” Really? That’s interesting, I guess I’ll have to try it sometime…doubt I could actually do it, but worth trying.“5:10 is underwater” I realize it was underwater, I just wondered how he went through the fire and enemies without getting hurt. Is that legitimate also?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330206",
"author": "Colin",
"timestamp": "2011-02-11T15:42:18",
"content": "So what about 1:28 and 2:21, legitimate glitches as well?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330209",
"author": "Daniel",
"timestamp": "2011-02-11T15:47:32",
"content": "@Colin I have actually the one at 1:28, but I want to try 2:21 because I haven’t seen it before.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330213",
"author": "MrX",
"timestamp": "2011-02-11T16:02:19",
"content": "@IceBrainNice! I guess now its time to do it on a real SNES and change the fitness function to use the score instead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330301",
"author": "boarder2k7",
"timestamp": "2011-02-11T17:59:57",
"content": "Holy wall-jumping ninja Mario Batman!Definitely a cooler project than watching an emulator do the same thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330335",
"author": "DanAdamKOF",
"timestamp": "2011-02-11T18:50:56",
"content": "You guys complaining about using glitches totally don’t understand the point of a Tool Assisted Speedrun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330357",
"author": "DarkKobold",
"timestamp": "2011-02-11T19:10:40",
"content": "Uh, you guys are all missing the point. He did NOT modify the NES. He simply replaced the controller with a device that feeds the inputs at 60 Hz. The NES sends out a pulse every time it wants controller data, and then the shift-register pumps it out. This is as legit as it gets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330365",
"author": "feos",
"timestamp": "2011-02-11T19:21:34",
"content": "Almost ALL glitches & tricks of all games were discovered many years ago on real consoles. Guys who make runs like the one you’ve just seen, study these glitches with the help of emulation & make them real by clever input (they create movie files frame by frame).YouTube is full of demos of different glitches, performed on real consoles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330383",
"author": "slipp",
"timestamp": "2011-02-11T19:43:24",
"content": "why don’t the flags come down?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330392",
"author": "tyco",
"timestamp": "2011-02-11T19:50:23",
"content": "There are two things here that, to me, are utterly remarkable:1. The game that’s running is actually the same level of determinance as the emulator. Just because the input is being fed at 60Hz, does not mean that the emulator provides controller inputs at exactly the same processor clock steps as the real system. Small timing variances, small variances in the crystal driving the whole system, can possibly lead to the whole operation desynchronizing. This game was a good choice to demo this since there are no random elements that I see, and nothing that is randomized by input timing.2. This is really the most remarkable: the emulator that was used to develop the controller script is actually so accurate as to allow this to be created. One little variation, one instruction that takes an emulated clock cycle longer than it does on the real hardware, and this whole thing could be ruined.This is really a stunning testament to the quality of some of the console emulators out there. Bravo, community.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330407",
"author": "feos",
"timestamp": "2011-02-11T20:07:32",
"content": "See all SMB tricks here, please:http://tasvideos.org/GameResources/NES/SuperMarioBros.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330728",
"author": "Daniel",
"timestamp": "2011-02-12T01:54:11",
"content": "Thanks feos!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,279.87712
|
||
https://hackaday.com/2011/02/11/launchpad-serial-morse-code-transmitter/
|
Launchpad Serial Morse Code Transmitter
|
Mike Nathan
|
[
"Microcontrollers",
"Radio Hacks"
] |
[
"ham radio",
"launchpad",
"morse code"
] |
LaunchPad dev boards from Texas Instruments are cheap and easy to program, making them a great Arduino alternative if you can do without some of the bells and whistles. [ech0s] put his to good use by constructing a
Morse code transmitter with dual operating modes
. The transmitter can not only encode and transmit messages entered in a terminal client, it also allows the user to send messages by manually operating the key switch. Inspired by the
high altitude balloon transmitter we featured
last summer, this project uses similar components for signal amplification and transmission. Text can be entered in a Putty terminal window, which then is encoded into Morse by the MCU before transmission. At the moment, the speed of the radio transmission is about 15 WPM, which is reasonably quick. Even though his system performs quite well [ech0s] has some improvements planned, including having a proper PCB built as well as some software tweaks to improve buffering and bandwidth. Be sure to check out his video of the transmitter in action after the jump.
[youtube=http://www.youtube.com/watch?v=nori-RjHEEo&w=470]
| 11
| 11
|
[
{
"comment_id": "330280",
"author": "Ken",
"timestamp": "2011-02-11T17:42:35",
"content": "Anyone else annoyed with all the poor quality instructables links?It is a bad sign when the morse keyer doesn’t even get the morse code right. I had to stop te video after hearing both “O” and “W” incorrectly coded.Then there’s the issue with a “ham” transmitter that can’t even bother to transmit in the ham band. This is just so wrong. I don’t mind kids toying with ultra low power CW, amateur radio operators should be to a higher standard.I don’t want to just complain, so here’s an idea for a CW hack: Find a microcontroller and crystal that operate at a (legal) frequency of your choice and use the built in oscillator as your frequency base, driving a CMOS AND gate with it and an output pin of the microcontroller. That would be cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330286",
"author": "asheets",
"timestamp": "2011-02-11T17:45:22",
"content": "My questions would be (a) longevity of the battery and (b) the ability to sustain a useful/stable sequence over a long period of time. I work with 10 meter propagation beacons that could benefit from something like this, but the keyer absolutely has to be “set and forget”.A lot of the DIY kits I’ve seen use EEPROMS, and will run on a 9V battery for upwards of a year, while keeping the WPM steady for the entire time.I personally use an old 386 laptop running a DOS program that keys the radio via serial port. It is a bit more power hungry (but the batteries are charged with a solar panel), but the WPM is “stable enough”, while giving me the ability to change the outgoing message fairly quickly.KD0GZJ/B, 28.2824 MHZ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330334",
"author": "Jimmy",
"timestamp": "2011-02-11T18:50:40",
"content": "@ KenThe project uses an Oscillator in the 10/12m (24/28 MHz) Ham band, and NOT the microcontroller clock frequency. The oscillator is just driven by an output of the launchpadI am still practicing morse code so I can’t comment on the video much.Also, 15 WPM seems a bit slow for a computerized morse code transmitter – that’s about average speed for an experienced operator (in the past you were REQUIRED to send at that speed minimum for certain license classes and copy CW even FASTER!)look up the Jay Leno footage of Morse Code Vs. Cell phone keyboard SMS, CW kicks the cell user’s butt!73!, ke5tuz, Jimmy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330462",
"author": "ech0s",
"timestamp": "2011-02-11T21:08:00",
"content": "@JimmyKen is right, I’m using a 24.0 Mhz oscillator and I’m out of band (12m band is from 24.890 to 24.990 MHz). I’m deeply sorry for this but I only had that oscillator in my toolbox and I couldn’t find a good one without spending lots of money in shipping.(I’ve also written this in the instructable)@KenYou’re right on the mispelled “o”, I have to debug this because in the code I’ve defined the letter rightly. For me the “w” is good… Please note that I’m using an online receiver in the video, and there is a 9s lag. (I’m a beginner in ham radio and I can’t afford a receiver). I’ll try your idea, thanks for the suggestion!@asheetsI’ll let you know as soon as I legalize this tx for continuous operation and battery longevity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330546",
"author": "asheets",
"timestamp": "2011-02-11T22:51:16",
"content": "@ech0s — take a look at ebay #370373314106. The Degen 1103 is a great little receiver, good sensitivity, picks up 100-29999KHz, and is cheap (you can actually find it less expensive than this auction — I picked mine up for $30 bucks shipped). Also, grab the Degen active antenna that is often sold with it (~$5)I’ve used the Degen 1103 ever since my Realistic DX-440 wore out (used weekly for radiofax, CW, and FEC reception since 1990!). Another good receiver, except it is a little pricey given the age of the available units now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330550",
"author": "asheets",
"timestamp": "2011-02-11T22:56:09",
"content": "@ech0s — if you do decide to get on the air with this as a long-term 10meter automated propagation beacon, be sure to get in touch with the Region 2 Beacon Coordinator athttp://userpages.troycable.net/~wj5o/to get a frequency assignment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330713",
"author": "Ken",
"timestamp": "2011-02-12T01:32:16",
"content": "Jimmy: Hopefully I didn’t sound too mean (though I do hate the instructables site). Building your own tools is a great way to learn morse code, and I support your goal. Think about connecting the transmitter directly to your receiver’s antenna input (through a big resistor) so you don’t transmit out of the ham bands.I double checked, and the “W” in “how” is rendered as dit-dah-dit, morse code for “R”. There was at least one more mistake, so double check the whole alphabet.By the way, I recently soldered that impossibly tiny 32768Hz crystal to a launchpad. Had to use a loupe (high power magnifying glass) to even see the leads with my middle aged eyes. I don’t know how, but it worked first try.asheets: An msp430 should be able to key a CW transmitter for well over a year on a watch battery. Active mode current drain is listed at 45microamps per MHz super low voltage msp430 devices. That’s 1.5 uA at 32kHz – 40 years on a CR3032 under idealized condition. One year with a common MSP430 should be easy to achieve, especially is power down modes are used. Just be sure you don’t suck too much power from the I/O pins (e.g. drive an FET switch instead of using the pin to power the xmit oscillator.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330717",
"author": "John Smith",
"timestamp": "2011-02-12T01:36:10",
"content": "This transmitter is also most likely not legal because there is no output filter. If it puts out a square wave at the output frequency, there are harmonics that are being transmitted that are out of band.So not only is the fundamental frequency wrong (24 mhz), it is also transmitting at multiples of that frequency most likely at a higher level that allowed even if the fundamental frequency was within the 12 meter band.Here is a PDF that has output filters that can be added without doing any of the math:http://www.gqrp.com/harmonic_filters.pdfI hope no one actually puts this transmitter on the air without making it legal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331146",
"author": "ech0s",
"timestamp": "2011-02-12T11:29:04",
"content": "Thank you all for your suggestions!@JohnAs I said, I’m a beginner in Ham Radio, I still don’t have a call.This TX was nothing more than a demo, I know I’m out of law with this TX (by the way I live in Region 1, but the band plan is similar).@KenI was in a hurry for the Sparkfun Instructables contest, otherwise I would have taken my time developing it and published this on my blog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331276",
"author": "MrC",
"timestamp": "2011-02-12T15:00:03",
"content": "What always amazes me is the “that’s not legal” crowd lecturing people about every little interpretation of some regulation on the books. And how important it is to obey said laws.Yet, these same people probably think nothing of hopping in their cars and zooming down the highway doing 10-15 mph over posted speed limits. Or violating a host of other traffic laws.Heck, on the local repeater. One a-hole was reprimanding another ham over “illegal” operation of 10 meter amps on CB. Meanwhile, he’s proudly stating how he’s doing 80 mph (in a 65mph zone), and just managed to avoid a state trooper doing radar.To all the hypocrites quoting “laws” – STFU !!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "331387",
"author": "asheets",
"timestamp": "2011-02-12T18:02:24",
"content": "@MrC — I don’t see too much law quoting, but what I do see are suggestions on how to perform this project better and cleaner. I thought that was what HaD was really all about.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.167528
|
||
https://hackaday.com/2011/02/10/todays-arduino-minute/
|
Today’s Arduino Minute
|
James Munns
|
[
"Arduino Hacks"
] |
[
"arduino",
"drum",
"led",
"light",
"machine",
"midi",
"motion",
"pir",
"sensor"
] |
Sometimes projects are vast, complicated, and complex. Other times projects are a bit more on the simple. Today we thought we would share a couple projects with something in common that may be familiar sounding to the more experienced crowd, but may inspire a few readers new to the world of microcontrollers.
First off, a cool decor tip looking to snazz up a college residence or bar is a guide for lighting up a shelf of
liquor bottles
using an Arduino to control a few RGB LEDs. This guide includes easy to follow schematics, source code, and a good explanation of using transistors to drive higher current to the LEDs than the Arduino could provide.
This six finger
drum machine
uses a Drum Kit – Kit AI to take in values from piezo sensors and convert those values into MIDI information to be used by either a hardware MIDI controller or PC. We like the CNC cut hand, and the design considerations put into it (like vibration buffering)
When moving beyond the buttons and LEDs in every starter kit out there, PIR
motion sensors
are usually a good next step. [LemonSlice] even goes so far as to add a a pair of XBees for making this motion sensor a little more autonomous.
| 15
| 13
|
[
{
"comment_id": "329596",
"author": "BadWolf",
"timestamp": "2011-02-10T23:37:18",
"content": "Love the bar one,might actually make one out 555 style!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329635",
"author": "Gdogg",
"timestamp": "2011-02-11T00:42:40",
"content": "Love the bar one too. Might make one with a 12f683. Digital for life!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329684",
"author": "Arthur",
"timestamp": "2011-02-11T02:24:32",
"content": "I like arduino projects. I don’t give a shit what anyone says.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329722",
"author": "ADIDAIllini",
"timestamp": "2011-02-11T03:46:15",
"content": "A cool add to the bar one would be if you could choose a drink from a computer and then have only the bottles you need to make the drink change to a different color.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "329753",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T04:54:34",
"content": "@ADIDAIllini,oooh, good idea. You should post that on the forums and see if you can’t make it happen!",
"parent_id": "329722",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "329723",
"author": "takfly",
"timestamp": "2011-02-11T03:48:55",
"content": "i’m liking the 6 finger midi drum kit! It would make a nice addition to any low budget hobby musicians desktop!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329863",
"author": "Joegeek",
"timestamp": "2011-02-11T08:05:23",
"content": "I recently purchased an Arduino Diecimila. I’ve been trying to find good reading resources with emphisis on building a foundation on which to get me started. I found the following books useful in helping me understand more on the Arduino projects offered here on HOD.– Getting Started with Arduino, Massimo Banzi (Co-founder of Arduino) printed by O’Reilly Press. A great beginners guide with the basics to build on.– Programming Interactivity – Joshua Noble and O’Reilly press – A great resource for anyone trying to learn to interface the Arduino with just about anything.– Making Things Talk, Tom Igoe on O’Reilly Press – To be honest I haven’t bought this one yet, but I did browse through it at the electronics store and found some interesting “How to” articles right out of Make Magazine.I know there is a lot more out there. These are just a few of the one’s I’ve come across while looking locally. Any other recommendations are greatly appreciated.I really have to thank the HOD staff and all the authors for the “Daily Arduino minute” articles. I am new to the Arduino programming world and really enjoying it thanks to all the great projects.-Joegeek",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329924",
"author": "Renee",
"timestamp": "2011-02-11T09:53:10",
"content": "I’m a huge fan of Arduino, I don’t really care what people say.It’s totally subjective and painted with personal bias but I feel like the number of projects and creations involving microcontrollers has really increased since Arduino came out.I don’t seem to recall the same amount of Basic Stamp and Pic projects.Sure, making an LED blink is overkill but there is a lot of really great stuff going on with Arduino’s.In fact if I get stuck on some things I actually do a google search for whatever I’m stuck on plus arduino.I might not use the Arduino solution but it makes for a quick and easy access to the info I need.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329960",
"author": "strider_mt2k",
"timestamp": "2011-02-11T10:39:52",
"content": "I don’t understand the hate either, but then again I rarely do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330093",
"author": "cdilla",
"timestamp": "2011-02-11T12:39:55",
"content": "I think that these simpler kinds of projects are very much a core part of why I come to hack-a-day every day.The wow! posts are equally important, and I think you get the balance pretty much perfect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330133",
"author": "AzurusNova",
"timestamp": "2011-02-11T14:11:25",
"content": "I am actually working on a project myself involving the arduino and some RGB LED’s I have for room lights.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330172",
"author": "twopartepoxy",
"timestamp": "2011-02-11T14:28:09",
"content": "arduinos are o.k., no problem, but what about a PICAXE moment now and again? probably some folks have never heard of them. why? because nobody can hear anything with all this noise about these arduinos (which are great, don’t get me wrong).",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "330190",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T15:15:24",
"content": "@twopartepoxy,Send us some!",
"parent_id": "330172",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "330248",
"author": "Ekaj",
"timestamp": "2011-02-11T16:59:04",
"content": "@JoegeekYou wouldn’t believe it, but the only “arduino” you have there is a third party circuit board. What you are actually working with is an atmel processor, and there are unlimited resources for these on the internet. Look it up. You don’t need “arduino” projects to copy, just learn about Atmel and you’re all set ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "332194",
"author": "James",
"timestamp": "2011-02-13T19:53:58",
"content": "Vodka bottle lighting was a cool project. Seems to work well and is plenty hackable for most folks. Unless I missed something, it’s way too bad that the underlying code is held hostage at Instructables unless/until you pay their fee to release it.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.018621
|
||
https://hackaday.com/2011/02/10/the-cias-amazing-bots/
|
The CIA’s Amazing Bots
|
Caleb Kraft
|
[
"Robots Hacks"
] |
[
"cia",
"dragonfly",
"fish"
] |
When you have a virtually unlimited budget, you can pull off some amazing things. This has become most evident recently as the CIA has been
showing off some of its old tech
. That dragonfly you see above is near life-size and actually flies. They hired a watch maker to build a tiny internal combustion engine to run it. That alone is pretty amazing, but this thing was actually flying in the 70’s. Upon
further inspection of the wings
, we actually have no idea how this sucker is supposed to fly. Despite our skeptical viewpoint, you can see a tiny clip of it flying after the break. You can also catch a video of “charlie” the robot catfish.
[via
Botjunkie
]
[youtube=http://www.youtube.com/watch?v=-j3hn3YZhOY&w=470]
[youtube=http://www.youtube.com/watch?v=dJyNU1aXXwo&w=470]
| 57
| 50
|
[
{
"comment_id": "329426",
"author": "arjan",
"timestamp": "2011-02-10T21:34:15",
"content": "A combustion engine in a dragonfly in the 70’s?! No way man… The smallest I know of is a 2-stroke .25cc and that is about 3x1x2cm in size alone. it needs glow-plugs, a starter-system (Just the flick of a finger against one of its wings?! come on…)Don’t tell me we’re all going to watch 3D tv’s just by rapidly blinking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329429",
"author": "Fritoeata",
"timestamp": "2011-02-10T21:37:51",
"content": "(xfilesmusic)…we are not alone…(/xfilesmusic)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329438",
"author": "Peter",
"timestamp": "2011-02-10T21:42:46",
"content": "Seismic Intruder Detection Device athttp://www.flickr.com/photos/ciagov/5416228747/I bought three of these (or something exactly like it) from a surplus place in the mid-70s. The thing poking out of the top left is the power switch, you break it off, pull out a little plastic nub and tear that off, then re-insert the part. It’s powered by a stack four mercury cells and has a seismic detector that looks like a BB on the end of a small spring, sitting inside something the size of a .22 shell. Every time it gets bumped hard enough, the BB contacts the metal cylinder and transmits (not a coded message) a burst of RF at around 50 MHz. You can break off another nub and insert a tuning tool to change its transmit frequency.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329442",
"author": "andrew",
"timestamp": "2011-02-10T21:43:07",
"content": "That’s impressive although, at the time, I’m not sure why somebody would have selected that over just a really good long-distance microphone. The thing is so difficult to see, I can’t imagine flying it more than 10-20 yards away, much less around the corner.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329453",
"author": "jeditalian",
"timestamp": "2011-02-10T21:44:53",
"content": "in the 70’s, it probably couldn’t do much but fly.. but nowadays, pack it with a lithium polymer and some microelectronics..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329465",
"author": "nes",
"timestamp": "2011-02-10T21:48:30",
"content": "I guess it works the same way as the backup diesel generators in nuclear subs where there’s no crankshaft but the pistons are opposed and bounce off a cushion of air trapped between them. Some of the combustion pressure is bled off to drive turbines in those things, but with this I guess they would have linked the wings direct to the pistons and once it hits resonance it just keeps going. To get it started you would waggle the wings up and down with a separate starter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329469",
"author": "jordan",
"timestamp": "2011-02-10T21:49:22",
"content": "ya i want to see proof of an internal combustion engine in that dragonfly. i just can’t fathom that existing in such a tiny thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329474",
"author": "MRC",
"timestamp": "2011-02-10T21:51:30",
"content": "if the engine was a 2-stroke diesel, it could indeed by started by cycling it until the compression was high enough to cause self-ignition.some people are very skeptical of this, that it’s just propaganda (hey guys, look what we built 40 years ago!)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329517",
"author": "1337",
"timestamp": "2011-02-10T22:04:28",
"content": "WOOHOO! SPYING ON THE DEAF!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329536",
"author": "BR",
"timestamp": "2011-02-10T22:12:48",
"content": "Robofish, the terror of fishermen everywhere. I can see it now, a fisherman hooks it when drawing in his line. Throws it back because he can’t eat it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329537",
"author": "Mircea",
"timestamp": "2011-02-10T22:14:51",
"content": "@arjan “Don’t tell me we’re all going to watch 3D tv’s just by rapidly blinking.”Actually that’s been done alreadyhttp://www.engadget.com/2011/01/15/man-discovers-glasses-free-3d-tech-in-the-blink-of-an-eye-video/:) Maybe it’s fake, but it looks freakishly enough to be real :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329547",
"author": "Mark W",
"timestamp": "2011-02-10T22:28:32",
"content": "I’m voting propaganda tooFirst, here’s the original source for the quoted text in the linked article (it’s a reuters article from 2003…don’t know why it was just rediscovered yesterday):http://edition.cnn.com/2003/TECH/10/28/tech.cia.reut/index.htmlI have several issues with this, and I’m sure there’s plenty more to say about the “oscillating engine” and “fuel bladder”, but one that I would really like to prod first is the “steering mechanism”, a laser.1) Diode lasers weren’t even really developped until the mid 60’s. Diode lasers in the late 1960’s were only achieving continuous lasing in labs at ~80K. Once the ambient temperature went up to room temperature, the current density shot through the roof. This problem wasn’t solved until the early 70’s.2) If the CIA was going to develop portable, room temperature laser systems wouldn’t THAT be the amazing development? Who would care about a dumb robot dragonfly?3) Even assuming the lasers were developed and produced, how the hell would you steer equipment with them?!?! Have the bug optically track the dot or something? If so, you would need tracking circuits, advanced detectors on the bug, some mini servo motor to control a rudder(? don’t know what else to call it), all technology that I’m pretty sure wasn’t being miniaturized to this extent in 1970.4) Even if you say the laser was used to relay instructions rather than project a dot (so as not to produce detectable communications), that still doesn’t eliminate the need for any control circuitry or receiving circuitry.5) Electric power. No matter how you dice it, the bug would need some kind of electric circuitry on it. How are you going to power it? Don’t say “battery”, because if that were the case, WHY BUILD A MINI COMBUSTION ENGINE IN THE FIRST PLACE?!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8117213",
"author": "NotNightshade",
"timestamp": "2025-04-09T21:41:02",
"content": "Primitive miniscule alternator. Could just be a magnet and a coil. The guidance would be on a single chip, not even encapsulated.",
"parent_id": "329547",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "329548",
"author": "Bob",
"timestamp": "2011-02-10T22:28:52",
"content": "@MirceaDid the sarcasm fool you or is your sarcasm fooling me?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329550",
"author": "djrussell",
"timestamp": "2011-02-10T22:31:25",
"content": "robot fish aka billy the singing bass",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329552",
"author": "Jordan",
"timestamp": "2011-02-10T22:32:56",
"content": "“Upon further inspection of the wings, we actually have no idea how this sucker is supposed to fly.”What’s unclear about it? It works the same way the FlyTech Dragonfly works, right? The front of the wings move up-and-down, and the rest follows, pushing air backwards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329557",
"author": "Mark W",
"timestamp": "2011-02-10T22:42:21",
"content": "I also think it’s pretty funny that they specifically say a watchmaker built it. I assume this qualifies you to build mini engines because you….work with tiny stuff a lot? Or something? Dragonfly, engine, CIA, watchmaker, laser….this whole thing sounds like some kind of spy madlib.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329560",
"author": "HARaaM",
"timestamp": "2011-02-10T22:44:54",
"content": "We have schematics of the “Monkey Turd” seismic transmitter, athttp://bomarc.org",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329566",
"author": "swighton",
"timestamp": "2011-02-10T22:58:08",
"content": "It could be like 30x actual size – though I that would be retarded and wouldn’t blend in well.If it is real size – I am extremely skeptical – flying insects have incredible power to weight ratios that I was under the impression humans had yet to attain.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329575",
"author": "Kaboof",
"timestamp": "2011-02-10T23:09:20",
"content": "@swighton noone said this thing can carry as much as the real insect could, or weights the same. It just flies (and that’s already really impressive imo..)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329584",
"author": "Fallen",
"timestamp": "2011-02-10T23:18:53",
"content": "Lol that movie didn’t prove much…could have just thrown a dragon fly haha.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329594",
"author": "acomputerdog",
"timestamp": "2011-02-10T23:34:56",
"content": "the beginning of the movie was animation, why couldn’t the video clip part be that too? and was it just me, or was it impossible to see what the flying object was, besides a dark spot on the screen? I’m not saying its impossible, but it looks a lot like Hollywood animations.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329602",
"author": "BadWolf",
"timestamp": "2011-02-10T23:46:28",
"content": "@HARaaMStop spamming dude,get lost.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329610",
"author": "Anthemion",
"timestamp": "2011-02-10T23:58:33",
"content": "The notion that it has a itty bitty internal combustion engine in it is a little silly, but it is reasonable that it’s a windup clockwork device. I would guess it was uncontrolled, had a range of 20-30 yards, and a very small payload. This would make it slightly useful. On the other hand, what do I know, I’m just some guy on the internet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329646",
"author": "alan dulles",
"timestamp": "2011-02-11T00:57:40",
"content": "The insectothopter was from 1976. DARPA has one that’s even smaller.This is covered a bit more in H. Keith Melton’s book “Spycraft.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329648",
"author": "evolone",
"timestamp": "2011-02-11T01:04:28",
"content": "@arjan Eye blinking for 3D tv:http://hackedgadgets.com/2011/01/17/3d-tv-uses-human-eye-blinks-to-replace-glasses-by-jonathan-post/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329657",
"author": "Ben",
"timestamp": "2011-02-11T01:18:43",
"content": "Not quite April 1st yet…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329663",
"author": "AG12",
"timestamp": "2011-02-11T01:34:12",
"content": "I got two words: bull & shit.They can hardly make something like this today.Even if all it has to do is to flap mindlessly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329710",
"author": "acomputerdog",
"timestamp": "2011-02-11T03:17:40",
"content": "@ AG12how do we know? the government could have nanobots distributed to every household in the USA. they could have brainwash stations all over the country, and they cold be monitoring the internet for posts like this.*robot grabs from behind*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329737",
"author": "Mark W",
"timestamp": "2011-02-11T04:25:59",
"content": "@alan dullesI don’t doubt that someone back then had the hair-brained scheme to build a miniature flying dragonfly spy robot (these are the same guys who thought pumping people full of LSD might lead to a reliable way to extract information). I’m just saying that there’s no way it worked. At the very least, the methods described in the linked were at best, grossly exaggerated. The CIA’s whole job is to pass around information (both real and fake). I imagine at the time, nothing would scare a commie more than having to worry every time a bug flew by about being…bugged.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "329752",
"author": "Caleb Kraft",
"timestamp": "2011-02-11T04:53:40",
"content": "They stated it was a complete failure in the control department. I don’t doubt a basic ornithopter that size can be built, but the picture of the wings shows no mechanical means of flapping. It all looks like one single piece. There is a high probability that I’m just missing something.",
"parent_id": "329737",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "329769",
"author": "wat",
"timestamp": "2011-02-11T05:12:44",
"content": "Exactly, anyone could be anywhere in technological evolution. Ever inhaled a bug? It was full of nanobots.They don’t even have to build anything. They just have to engineer bacteria to perform tasks or transmit information with little protein or mineral antennas they would bio-accumulate once programmed to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329787",
"author": "Gianni",
"timestamp": "2011-02-11T05:46:24",
"content": "I like the idea that this sort of thing happened, wondered if they made birds to send to russia – can’t imagine they get too many deagonflys there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329800",
"author": "Whatnot",
"timestamp": "2011-02-11T06:25:14",
"content": "I think it flew, but only a few feet and could not be directed or be used to spy at that point, it’s one of those concept with 30 components and they started on 1 of those components and that wasn’t even 15% done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329814",
"author": "Davo1111",
"timestamp": "2011-02-11T06:53:35",
"content": "i vote for propaganda",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329820",
"author": "Ryan",
"timestamp": "2011-02-11T07:06:33",
"content": "The chances are that it is just a windup toy that goes a few meters and some journalist decided to spew some bullshit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329858",
"author": "loonquawl",
"timestamp": "2011-02-11T08:02:22",
"content": "There is a nice paper in the current Chemical Engineering Science Journal (https://dspace.lib.cranfield.ac.uk/bitstream/1826/4776/1/Theoretical_limits_scaling-down_internal_combustion_engines-2010.pdf) laying out why it is unfeasible to build an ICE smaller than 0.4cc currently. Apart from that, why should anyone in the 70s have built something like that, other than as a toy? RC was not good enough at that scale to do anything useful, so the bug would have been confined to preconfigured, line-of-sight trajectories. And know what other CIA tech can achieve that? A throw by hand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329873",
"author": "therian",
"timestamp": "2011-02-11T08:29:10",
"content": "Engine probably the least problem needed to be solve here, to fly even just to freeze in mid air it need controls read more electric engines and power source. Aerodynamically it hard to control bugs they are not gliders and use turbulent propulsion which is chaotic in movement and need constant correction read uC",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329875",
"author": "Neckbeard",
"timestamp": "2011-02-11T08:31:43",
"content": "I thoroughly recommend taking a look athttp://ciaspycraft.com/and getting a copy of the book. I’m only a third of the way through and it seems the CIA had digital cameras back in the late 80s!Fascinating stuff. As for the Dragonfly the size of it and the noise the wings would make in flight negate any possible advantages you would gain from it. Something better would be a centipede or snake type design.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329903",
"author": "Bob",
"timestamp": "2011-02-11T09:24:51",
"content": "Why not put in the “bug” inside of an actual dead bug, like a roach or beetle and throw it where you want? This fake machine they claim to have used doesn’t have any control mechanism. But more importantly, it has no stability mechanisms. Most flying devices rely on natural stability provided by properly designed wings and a center of gravity forward of the center of lift to fly without becoming unstable and falling out of the sky. This “device”, without active stabilization and without an understanding of the mechanics of vortex shedding, cannot possibly fly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329941",
"author": "antonye",
"timestamp": "2011-02-11T10:14:16",
"content": "The point is, as @Whatnot says, that this is merely one piece of a puzzle, a Proof of Concept if you will.Once you have the delivery mechanism, then you can work on the payload. Maybe we haven’t seen the payload yet, or it was never built as the delivery mechanism wasn’t viable.Either way, someone built this thing and it’s a great piece of tech from 30+ years ago, and shows that some people are way ahead of their time!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329984",
"author": "PKM",
"timestamp": "2011-02-11T11:17:02",
"content": "If you look at the original CNN story carefully, you’ll notice it never says COMBUSTION engine, it says OSCILLATING engine. It could be a wobbler-type air engine, working off compressed air or a low boiling point liquid (butane? liquid nitrogen?) in the “fuel bladder”.Don’t get me wrong, I am almost entirely convinced the dragonfly thing isn’t true, but it’s not quite as far out as the story summary implies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330013",
"author": "octel",
"timestamp": "2011-02-11T11:51:10",
"content": "bullshit/propaganda/sloppy reportingthe “spycraft” thing is also from the same pile of bullshit, just piled higher",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330108",
"author": "Andy7",
"timestamp": "2011-02-11T13:17:07",
"content": "Clearly based on Alien technology!(ducks)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330119",
"author": "Mr Foo",
"timestamp": "2011-02-11T13:43:42",
"content": "Yeah. Clearly the insectothopter thing is not only old news (I seem to remember seeing coverage of it back as far as 2007 or so) but also blatantly false. It’s obvious to anyone with half a brain that this sort of crude technology demo couldn’t possibly have been developed in the 70s. In exactly the same way that it’s obvious to anyone with half a brain that sending people into space and eventually to the moon couldn’t possibly have happened in the 60s.To those with a whole cerebral orb, however, it may well look entirely do-able.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330127",
"author": "Mr Foo",
"timestamp": "2011-02-11T13:56:32",
"content": "No bigger than 0.3cc? Carp. The author of that paper has presumably not seen the *commercially available*, *mass produced*, 0.16cc Cox TeeDee engine. That’s a full-scale reciprocating 2 stroke gas engine rather than a simplified micro/nano power source, which could easily be made much smaller (for varying values of “easy”).Video of the TeeDee here :http://www.youtube.com/watch?v=2CmI3kp4OfQ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330245",
"author": "space",
"timestamp": "2011-02-11T16:50:29",
"content": "The dragonfly wings look more like passive radio transmitter / modulator / radio-microphone rather than something that could fly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330247",
"author": "Blue Footed Booby",
"timestamp": "2011-02-11T16:57:41",
"content": "I agree the story is extremely suspicious, but I don’t know why so many people are assuming this is specifically propaganda. Who would this impress that wasn’t already impressed by men walking on the goddamn moon?Now on the other hand, the CIA put tons of resources into total red herrings intended to trick the soviets into wasting resources on wild goose chases, often involving insane multi-pronged deception. For example, there are known cases of plans for non-existent weapon systems being leaked to russian spies, while at the same time fake prototypes are “accidentally” left partially exposed to spy satellites. Every man-hour spent sifting the possibly true from the pile of obviously false was an hour not spent looking into the possibly true in more detail.Which seems more plausible: that the CIA thought this would be good propaganda, or that it was typical counter intel misdirection?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330370",
"author": "Mark W",
"timestamp": "2011-02-11T19:26:25",
"content": "@Blue Footed Booby/agreeconter intel FTW",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330448",
"author": "roswellaliens",
"timestamp": "2011-02-11T20:43:35",
"content": "actually this is feasible even with 1970’s tech.they developed basic control systems which you would think need an expensive (modern) fast micro but old fashioned analogue circuitry will work if you are very skilled in design.for example, a “chaotic” oscillator can be built with as few as two transistors and less than ten other components which can take information from a tilt sensor made from a vibrating mass bar and magnetic sensors and feed back into the system.Straight and level flight is simple, left/right and altitude feedback is also doable by altering the directional bias to the central pivot on the small resonating wing pair.As for steering during flight, any number of compact tunnel diode based RX circuits will work here and only need a handful of discretes.For once, 1970’s era parts are a boon for “black ops” because they are incredibly low power and can run from under a volt which is doable using simple thermoelectrics driven by the waste heat from the combustion chamber.:-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330706",
"author": "WeAreMany",
"timestamp": "2011-02-12T01:22:40",
"content": "The Hoax was made in the 70’s not the device",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330880",
"author": "yuppicide",
"timestamp": "2011-02-12T04:48:43",
"content": "I don’t know about the dragonfly, but the robotic fish was shown on a TV show several years ago on CIA technology.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.257651
|
||
https://hackaday.com/2011/02/10/rgb-tilty-cube/
|
RGB “Tilty Cube”
|
Caleb Kraft
|
[
"LED Hacks",
"Microcontrollers"
] |
[
"beginner",
"led",
"pic"
] |
[Ben’s] introduction to microcontrollers was this
fun little gift he calls the “tilty cube”
. It is an acrylic box with 3 LEDs mounted inside that changes color based off of how you tilt it. Sounds like a fun toy, and a good project to learn with. [Ben] chose the PIC12F615 as the brains and laid it all out on a perfboard. Since this was his first microcontroller experience he had to learn how to blink the LEDs, then figure out PWM etc. Though there is no video of the project in its finished state, since it was given away as a gift, we assume he figured it out pretty well. He does state that the LEDs are dimmer than he had hoped and offers some thoughts on how he would do the entire project better next time.
| 20
| 20
|
[
{
"comment_id": "329328",
"author": "Some perv",
"timestamp": "2011-02-10T20:08:52",
"content": "Totaly ready that as titty cube",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329361",
"author": "dmcbeing",
"timestamp": "2011-02-10T20:23:19",
"content": "Much better than the typical led “Hello World”.@Some Perv:Same Here :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329363",
"author": "Thopter",
"timestamp": "2011-02-10T20:26:02",
"content": "Third for misreading the title.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329365",
"author": "cero_absoluto",
"timestamp": "2011-02-10T20:30:43",
"content": "My disappointment at the lack of a titty cube has led me to ponder my next project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329368",
"author": "cde",
"timestamp": "2011-02-10T20:36:26",
"content": "Legend of Zelda, Red Green Blue Cube puzzles. That’s what this needs to be.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329369",
"author": "Brennan",
"timestamp": "2011-02-10T20:38:41",
"content": "Is there a video anywhere? I’m interested to see how smooth the color changes are and how complex the algo is. The way I would do it is use each axis of a 3-axis tilt sensor to adjust the R/G/B PWM values. So tilting along the X axis would change the R value, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329373",
"author": "1337",
"timestamp": "2011-02-10T20:49:02",
"content": "i was thinking it was injected with silicon or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329407",
"author": "Colin",
"timestamp": "2011-02-10T21:05:32",
"content": "Also misread the title. Can someone please make a titty cube?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329422",
"author": "Dielectric",
"timestamp": "2011-02-10T21:24:25",
"content": "Compiz Desktop Cube + pr0n = titty cube. QED.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329432",
"author": "mess_maker",
"timestamp": "2011-02-10T21:41:11",
"content": "damn… I wish I’d read it as titty cube. :( I am getting old.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329456",
"author": "asheets",
"timestamp": "2011-02-10T21:45:41",
"content": "This is right up their with Sean Connery’s “Penis Mightier”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329486",
"author": "FightCube.com",
"timestamp": "2011-02-10T21:57:15",
"content": "I had this idea the other day… nice first project!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329556",
"author": "lilozzy",
"timestamp": "2011-02-10T22:39:02",
"content": "Hey, I’m the guy who put this together. Sorry about calling it a Til(t)ty cube. The algorithm is just that, each axis controls a different color. The colors change rather smoothly, it’s a cool effect, but I never made a video before I gave it away, so you’d be hard pressed to find one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329558",
"author": "xmd",
"timestamp": "2011-02-10T22:43:51",
"content": "Heh. nice work. I hacked a low-fi version of this together a year or so ago with 3 mercury tilt switches, an RGB LED and a few resistors.Awesome first micro project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329559",
"author": "tauntaun_rider",
"timestamp": "2011-02-10T22:44:23",
"content": "One thing I like about this site is how often a post will inspire others in the following days that are improved versions of the original post, or “this is how that should have been done”. Totally waiting for follow-ups here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329715",
"author": "knuckles904",
"timestamp": "2011-02-11T03:26:52",
"content": "Glad to see im not the only one who misread the title",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329747",
"author": "jim",
"timestamp": "2011-02-11T04:45:41",
"content": "…where as a luddite like myself would use reed switches and a few resistors, and maybe a 555 timer for good measure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329965",
"author": "Marvin",
"timestamp": "2011-02-11T10:50:30",
"content": "Hey! This would be an cool effect for LED juggling balls!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329996",
"author": "ibanex",
"timestamp": "2011-02-11T11:31:55",
"content": "I read tity cube :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "330557",
"author": "Scott",
"timestamp": "2011-02-11T23:02:17",
"content": "I keep looking for a Titty project on HAD, and this is the closest I’ve seen!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.322752
|
||
https://hackaday.com/2011/02/08/mixed-io-testing-module/
|
Mixed I/O Testing Module
|
Mike Szczys
|
[
"Arduino Hacks",
"Tool Hacks"
] |
[
"analog",
"input",
"output",
"potentiometer",
"test"
] |
Needing to test the display interface for a multitude of different sensors [Fileark] built himself this
analog and digital input/output simulator
. Along the bottom is a double row of trimpots that adjust analog voltages. Each voltage is measured by the Arduino inside and its value is displayed on the graphic LCD screen to confirm that the hardware you’re testing is making correct measurements. There’s also digital I/O in two different forms. To the upper left are momentary push buttons but the DIP switch bank below that allows the same connections to be toggled on and off. It’s not an automated test bed, but if you’ve got a lot of I/O, or a lot of hardware to test this will save you some real time.
Don’t miss the demonstration video after the break.
[youtube=http://www.youtube.com/watch?v=iv0LFknD1XA&w=470]
| 7
| 7
|
[
{
"comment_id": "327265",
"author": "Bill D. Williams",
"timestamp": "2011-02-08T21:44:32",
"content": "I’m completely lost. The point of this is what? He’s just sending a bunch of pots to an arduino? And so he put it in a case? Why? Testing what exactly? That the arduino has I/O?What am I missing?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327282",
"author": "TheRatatat",
"timestamp": "2011-02-08T22:17:53",
"content": "Watch the video!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327345",
"author": "Bill D. Williams",
"timestamp": "2011-02-08T23:38:18",
"content": "I assumed there would be some obnoxious music, so I avoided it. Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327639",
"author": "rasz",
"timestamp": "2011-02-09T06:56:23",
"content": "its for plc debugging, very handy if you do it daily",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327753",
"author": "strider_mt2k",
"timestamp": "2011-02-09T10:26:40",
"content": "Why did I suspect a PLC was involved?Probably because of the mixed IO, but I work with them now too, so everything is either a P{LC or a broken PLC. (such is QC)Pretty easy to “get” if you watch the video(?), and a wonderful piece of gear.Cool build, great video, class act all the way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327754",
"author": "strider_mt2k",
"timestamp": "2011-02-09T10:27:23",
"content": "Yeah, it’s always funny when the QC guy makes a typo too… :o",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "328212",
"author": "Fileark",
"timestamp": "2011-02-09T20:13:53",
"content": "The pots produce 4-20 miliamp output to a PLC and don’t go into the Arduino. The Arduino provides 6 analog ins and displays the value on the LCD screen.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.367193
|
||
https://hackaday.com/2011/02/08/theremin-midi-board-is-like-using-autotune/
|
Theremin Midi Board Is Like Using Autotune
|
Mike Szczys
|
[
"Musical Hacks"
] |
[
"keyboard",
"midi",
"theremin"
] |
[Steve Hobley] built
a Theremin interface board that tracks pitch and volume
. Using this setup he’s able to pass data over a midi interface which effectively converts the instrument into a non-contact midi controller. As we joked in the headline, this does allow for the use of autotune, by snapping notes that are sharp or flat to the center of the nearest pitch. But you should watch the video after the break to see [Steve] show off the other features as well. A keyboard can be used to seed a starting pitch, with arpeggios of several different tonalities built on top of it based on the input from the Theremin.
Want the details? Unfortunately you’ll have to pay for the schematics. But the concept is still just as interesting to read about, even if you don’t know what went into the system.
[youtube=http://www.youtube.com/watch?v=5sE2yS3CUno&w=470]
| 8
| 8
|
[
{
"comment_id": "327206",
"author": "Erik Johnson",
"timestamp": "2011-02-08T20:03:46",
"content": "Holy *!@#$ I was wanting to build this exact thing for a friend’s interactive music/art display… Use your MIDI device (keyboard) to lend the voice and the theramin would supply the note and pitch bend data",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327225",
"author": "blue carbuncle",
"timestamp": "2011-02-08T20:42:43",
"content": "@Erik Check out MouSing. It is an old win95 program that lets you use your mouse as a theremin. As the once owner of a theremin, I can tell you it would be a little weird to control the note as such. I suppose if you had an old Poly61 with a joysick for DCO and filter, you could even patch the theremin back into that hardwired. Otherwise, kick it to NRPN CC and have a field day with midi :) There hsould be many CV to MIDI schematics out there and a few kits that may speed things up for ya :) I know for a fact that a german guy has done an easy one with ableton and a monotron :) Could be a jumping off point :) Google Korg monotron mod bent and you should see the vid :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327244",
"author": "Rich Decibels",
"timestamp": "2011-02-08T21:30:20",
"content": "This is amazing. The closest thing available is from PAIA, who sell an excellent theremin kit with CV outputs for pitch, volume, gate, velocity… which you could readily convert to Midi. But that midi-in aspect is something else!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327294",
"author": "Steve Hobley",
"timestamp": "2011-02-08T22:29:21",
"content": "I updated the post to include some of the details/schematic of the audio processing system.Cheers,Steve",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327300",
"author": "Erik Johnson",
"timestamp": "2011-02-08T22:38:13",
"content": "@carbundle cool, I was going to go the MCU route using a simple freq. counter, or FFT or some such to pick out the notes and deviation thereof then output the proper MIDI signals. I don’t want to involve a traditional computer/laptop whatsoever. It all sounds simple enough, laziness is always the biggest hurdle :)I’m going to steal the idea to manipulate & playback played on the keyb from this, that’s friggin’ cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327324",
"author": "echodelta",
"timestamp": "2011-02-08T23:07:33",
"content": "Gesture control and this would be dead on. Kinect sensing and chord creation should go hand in hand.I always hated `one finger’ chords, all different and confusing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327562",
"author": "patrick",
"timestamp": "2011-02-09T04:38:15",
"content": "http://www.vimeo.com/54260413-2 years ago I connected my paia theremin to puredata (as you can see 12 bits of resolution).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "629496",
"author": "Turdboat",
"timestamp": "2012-04-14T19:58:57",
"content": "Here be that sauce codehttp://pastebin.com/FFh4dP4x",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.416275
|
||
https://hackaday.com/2011/02/08/farebot-android-nfc-proof-of-concept/
|
FareBot – Android NFC Proof Of Concept
|
Mike Nathan
|
[
"Android Hacks",
"Transportation Hacks"
] |
[
"android",
"NFC",
"rfid reader"
] |
Upon learning that the Nexus S smartphone was equipped with a Near Field Communications NFC) radio, [Eric Butler] decided he would put the newly released Gingerbread SDK to good use. Focusing initially on ORCA fare cards used by several Washington state transit systems, he built an
open-source application he calls FareBot
, which can read data from any MIFARE DESFire branded cards. Utilizing the NFC radio in the Nexus S, he was able to dump all of the unprotected information from the fare cards, including the remaining card balance and the last 10 locations where the card was used.
The author hopes that his proof of concept application encourages other developers to expand on his project and to explore the data stored on transit cards around the world. While it is in its early stages, [Eric] would ultimately like to see this project expanded to allow the use of NFC-enabled smartphones as transit cards themselves via downloadable apps. He suggests that helping people understand the amount of data which can be freely obtained from these cards will eventually force the manufacturers to better inform consumers of the existing system’s shortcomings, which in turn might spur on smartphone-based transit initiatives.
| 12
| 11
|
[
{
"comment_id": "327167",
"author": "Anonymous",
"timestamp": "2011-02-08T18:58:52",
"content": "Hold on.An RFID reader, in a cellphone?How’s the range, and can it penetrate jeans if close enough?Our school uses a keyless entry system, guessing from what I’ve seen, it’s RFID.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327168",
"author": "alan",
"timestamp": "2011-02-08T18:59:18",
"content": "love this concept.keep it up, eric.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327181",
"author": "yosh",
"timestamp": "2011-02-08T19:20:21",
"content": "site hack-a-day DDoSed?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327258",
"author": "Mikey",
"timestamp": "2011-02-08T21:40:05",
"content": "@Anon — it can read and emulate RFID cards to my understanding (this is old news, Android added this SDK over a month ago.)The more important part is that this is a specific software application that utilizes it.As for the range I can’t comment. But in an emulation environment, I assume it would be better, since the phone is powered, and cards are powered by electricity they pick up via radio waves… for reading, I would assume it’s less range since it’s powered by battery and not directly connected to power like most card readers are…Again though, that’s just speculation, so someone correct me if I’m off base here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327299",
"author": "cde",
"timestamp": "2011-02-08T22:36:16",
"content": "Better yet, can it WRITE to these cards?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327343",
"author": "John",
"timestamp": "2011-02-08T23:35:11",
"content": "So basically, what can you do with this? Steal other people’s hard-earned on fare cards? Cheat metro/subway/etc out of money needed to make using it affordable to the rest of us? Seems like this is kinda shady to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327405",
"author": "Maave",
"timestamp": "2011-02-09T00:56:55",
"content": "@cde – right now it’s read-only but that’s because of software/firmware. It will be updated in the future to support write-capabilities.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327468",
"author": "dgrey",
"timestamp": "2011-02-09T02:12:11",
"content": "Actually, Nexus S can write tags with some hidden functionality, this post explains howhttp://www.nearfieldcommunicationsworld.com/2011/01/25/35758/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327587",
"author": "cde",
"timestamp": "2011-02-09T05:52:01",
"content": "@Maave That means you can do a quick test to see if the subway uses server side verification or not. Hahaha.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327597",
"author": "rasz",
"timestamp": "2011-02-09T06:05:24",
"content": "entry systems usually implement fail Unique 125 kHz tags, identification is by TAG number only, tag cloner was here like a week agoPN544 mounted in Nexus talks 13.56 MHz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327964",
"author": "Sitwon",
"timestamp": "2011-02-09T16:33:08",
"content": "Is the Nexus S the only phone (or consumer accessible device) that has the necessary hardware?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "558765",
"author": "zhongfu",
"timestamp": "2012-01-14T15:42:08",
"content": "No, apparently all phones with NFC *should* be able to do it. Not 100% sure though",
"parent_id": "327964",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,280.465366
|
||
https://hackaday.com/2011/02/08/building-a-better-spectrum-analyzer-for-radio-enthusiasts/
|
Building A Better Spectrum Analyzer For Radio Enthusiasts
|
Mike Szczys
|
[
"Radio Hacks"
] |
[
"amateur radio",
"operator",
"spectrum analyzer"
] |
This spectrum analyzer project
seeks to improve the quality of tools available to amateur radio operators. A lot of thought has gone into the design, and those details are shared in the verbose project log. The case was originally a CATV link transmitter, but most of the controls seen above have been added for this build, with unused holes filled and finished to achieve the clean look.
One noteworthy part of the build is the time that went into building a rather complicated-looking 1013.3 MHz cavity bandpass filter. Despite the effort, the filter didn’t work. Details are a bit sketchy but it seems that some additional tuning brought it within spec to complete that portion of the device.
This certainly makes other
toy spectrum analyzers
look like… toys.
[Thanks William]
| 12
| 12
|
[
{
"comment_id": "327125",
"author": "HackerK",
"timestamp": "2011-02-08T17:20:14",
"content": "Wow, this is serious stuff.. and well documented.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327128",
"author": "Rob Wentworth",
"timestamp": "2011-02-08T17:27:53",
"content": "The “serious” page has a link to the “toy” IM-Me spectrum analyzer. ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327133",
"author": "Rob Wentworth",
"timestamp": "2011-02-08T17:34:08",
"content": "And here’s a $10 spectrum analyzer made from a 555 timer IC, that connects between your communications receiver IF signal and an oscilloscope:http://www.qsl.net/n9zia/spec/Homebrew_Spectrum_Analyzer.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327137",
"author": "Michael Ossmann",
"timestamp": "2011-02-08T17:44:16",
"content": "This page is worth visiting just for the bibliography. It is a very good survey of both analog and digital homebrew spectrum analyzer techniques.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327143",
"author": "hpux735",
"timestamp": "2011-02-08T18:01:00",
"content": "@Rob WentworthWell played. Though, good luck making measurements with it :)Also, I know something about the 1013 Mhz cavity filter (I’m working on my own build of the “Scotty Spectrum analyzer”http://alternet.us.com/?page_id=751)The plumbing pipe cavity filter he built probably didn’t work because the “hairpin couplers” between cavities look like they’re too far away from the sides. They’re really only supposed to be about half the width of the insulators away. He had an aluminum cavity filter machined from the designs of another spectrum analyzer, which did work. It looks like it shouldn’t be too much trouble to make it at home if you have a drill press, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327183",
"author": "Mesmer",
"timestamp": "2011-02-08T19:22:29",
"content": "Very nice build, and quite educational!A bit off-topic: does anyone know what’s the software used for drawing block diagrams for RF? Something like the one in this project or like the numerous ones in ARRL or datasheets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327232",
"author": "jojo",
"timestamp": "2011-02-08T21:02:38",
"content": "nice, but I think WA7MLH’s update of the old W7ZOI design has it beat.http://www.neoanderthal.com/wa7mlh1.html2/3 of the way down",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327283",
"author": "hpux735",
"timestamp": "2011-02-08T22:19:55",
"content": "The thing I like about “scotty’s spectrum analyzer” is that it takes the oscilloscope out of the equation. It’s nice to have everything on the computer, so capturing plots and taking measurements is stupid simple.http://scottyspectrumanalyzer.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327286",
"author": "hpux735",
"timestamp": "2011-02-08T22:21:53",
"content": "It’s also worth mentioning that the scotty spectrum analyzer is having a PCB group buy right now, so jump on the mailing list if you’re interested.http://groups.yahoo.com/group/spectrumanalyzer/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327288",
"author": "cornelius785",
"timestamp": "2011-02-08T22:25:35",
"content": "Ah yes, the GBPPR, quite an interesting site to rummage around at. There are loads of other interesting projects and ideas there. If you’ve never gone to the site, you could spend hours reading various pages. Just one fyi, just ignore the pages/part of pages that are political :( .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "328900",
"author": "d_",
"timestamp": "2011-02-10T10:27:57",
"content": "Some day I’ll Start the spectrum analyzer project, but I should complete my poor person’s service monitor first",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3997551",
"author": "baloothebear4",
"timestamp": "2017-09-12T11:07:31",
"content": "Hey – if you guys are interested I have built an spectrum analyser using an Arduino and Pi to an OLED display for audio. Check this out! And get in touch bearaudio.blog/2017/09/08/mvista-predac-spectrum-analyser/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.511495
|
||
https://hackaday.com/2011/02/08/arduino-asteroids/
|
Arduino Asteroids
|
Kevin Dady
|
[
"Arduino Hacks"
] |
[
"arduino",
"Asteroids",
"tv"
] |
[nootropic] has a new game out for hackvision,
“Asteroids”
! We covered the
hackvision
back when it first started appearing in October of 2010, and hardware wise it has not changed. It is still an Arduino (software) compatible system sporting a atmega328, video and audio out connections (
uses the TV-out library
), all on a nice printed circuit board that, with the buttons, resembles a game controller.
While its impressive enough to run arcade inspired games like
space invaders, pong, and tetris
while using Arduino and a library, Asteroids takes the game up a notch.
Features that make Asteroids well, Asteroids include a mod of the TV-out library so that bitmaps can fly over each other without erasing the pixels under them to give that old time vector arcade feel, and “
point in polygon
” style collision detection, which is a fantastic / efficient way of collision detection against irregular shapes, limited platform or not.
Last but not least, [nootropic] used the set_vbi_hook() function of the tv out library in sound design, going from simple “beeps” and “boops”, to “beeps” and “boops” on a constant 60Hz refresh (in the case of NTSC) that allows him to build more complex sound effects that give a nice arcade sound of explosions and laser blasts.
Join us after the break for a quick video, and remember, this is Arduino based so if you already have an Arduino, you can add the supporting hardware (buttons, resistors, and RCA jacks) and run any of the games currently offered, or make your own.
[youtube=http://www.youtube.com/watch?v=w03dO0Hd660&w=470]
| 17
| 17
|
[
{
"comment_id": "327050",
"author": "nootropic",
"timestamp": "2011-02-08T15:27:21",
"content": "one quick clarification – I didn’t mod the TVout library to provide the bitmap overlay. Standard TVout is used.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327057",
"author": "nes",
"timestamp": "2011-02-08T15:53:49",
"content": "That’s absolutely lovely. Top work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327062",
"author": "nickstewartroc",
"timestamp": "2011-02-08T16:03:04",
"content": "Anyway to port over to a TI launchpad? Thanks,Nick",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327066",
"author": "nootropic",
"timestamp": "2011-02-08T16:32:41",
"content": "The TI LaunchPad has far to little memory. The ATmega328 has 2K of SRAM (frame buffer requires over 1.5K) and 32K of flash to store the program (Asteroids is over 28K). It looks like the TI mcu on the LaunchPad only has 2K of flash and 128 bytes of RAM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327070",
"author": "Gdogg",
"timestamp": "2011-02-08T16:42:25",
"content": "Cool stuff. I need to work on my gamedev, and I’m really interested in the restrictions impossed by these little chips. OpenGL is too easy.For those of you who needs an asteroids fix. paste this code in your address bar and hit enter.http://pastebin.com/ZAHNuU7nOf course, you don’t have to trust me (it is technically possible to steal cookies this way) but of course the link to the js file is right there, so you can read the code if you’re wary. It’s worth it though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327140",
"author": "spiritplumber",
"timestamp": "2011-02-08T17:55:51",
"content": "Wonderful job fitting that on an arduino! As a Propeller user, I would like to welcome you to 2006.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327141",
"author": "Finger",
"timestamp": "2011-02-08T17:56:40",
"content": "@nickstewartroc and nootropic,I’m fairly confident that Asteroids could be ported over to the Launchpad despite the SRAM and Flash limitations. The graphics pipeline would have to be reworked (no framebuffer, probably a line-buffer based approach) and you would probably have just use the vertexes or other primitives for the polygons instead of bitmaps, but it’s definitely possible. If I get some time I’ll mess around with writing it up for the Launchpad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327148",
"author": "strider_mt2k",
"timestamp": "2011-02-08T18:24:37",
"content": "The project is valid.No need for douchery.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327152",
"author": "Ben Foote",
"timestamp": "2011-02-08T18:31:09",
"content": "This is a pretty cool use of the Arduino platform. However, lets not forget the Uzebox/Fuzebox. It’s based on the 644P (which means 64k of space instead of 32k) and has a few other neat features tucked in as well.Check it out here:http://www.belogic.com/uzebox/There are plenty of full games, with source, available for anyone to get started. And there is a very tight-knit user community around the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327268",
"author": "Mikey",
"timestamp": "2011-02-08T21:50:55",
"content": "It’s lovely to see people hacking around the limitations of a platform to add a better gaming experience to it… but it’s still got a ways to go to catch up to the Atari 800 port (which sported color, and up to 4 players on much slower hardware…)Also what’s with the velocity? It seems like there is either too much friction, or he was too afraid to show us that it wasn’t working right (he didn’t move much during the replay.) Nothing worse than a bad asteroids clone without REAL 2D velocity tracking…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327273",
"author": "delta",
"timestamp": "2011-02-08T22:06:22",
"content": "Didn’t the “real” Asteroids have more than 8 possible angles for the ship? It’s probably because of the bitmap-approach, but it seems to disturb the gameplay…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327307",
"author": "8051",
"timestamp": "2011-02-08T22:41:49",
"content": "@MikeyThe Atari 400/800 had custom graphics hardware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327317",
"author": "tomas",
"timestamp": "2011-02-08T22:56:58",
"content": "all of you people bitching about how limited the atmega platform is, take a deep breath. feel better now?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327332",
"author": "RadBrad",
"timestamp": "2011-02-08T23:15:15",
"content": "Great project – thanks for sharing!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327382",
"author": "macona",
"timestamp": "2011-02-09T00:28:28",
"content": "I got my hackvision last week, i think. Need to find a serial cable now…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327413",
"author": "Agent420",
"timestamp": "2011-02-09T01:01:32",
"content": "I’m an avr guy at heart. As such, I think these projects are great how they push the video capabilities of the platform.That said, the Propeller is certainly the architecture to use for uc based video projects.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327965",
"author": "Ford",
"timestamp": "2011-02-09T16:36:13",
"content": "I hate to be the one to do this, but I just spent way too long trying to figure out the sentence, “Features that make Asteroids well, Asteroids include…”A comma before ‘well’ and another comma after the second ‘Asteroids’ would make it more clear what you’re going for there.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.566855
|
||
https://hackaday.com/2011/02/08/upvotedownvote-cards/
|
Upvote/Downvote Cards
|
Mike Szczys
|
[
"LED Hacks"
] |
[
"bicolor",
"downvote",
"facebook",
"upvote"
] |
Next time you throw together a talent show
consider using these cards for up and down voting
. [Frits Rincker] came up with the idea over the weekend based on the like and dislike buttons of Facebook. They consist of some foam board with LEDs in the outline of a hand. He built a switch which completes he blue circuit for the thumb’s up and a red circuit for thumb’s down by using a weight that slides freely in a channel, with a reed switch at either end. We’ve embedded the video after the break for you enjoyment.
Oh, and in case you were wondering; Hackaday likes this.
[youtube=http://www.youtube.com/watch?v=pTge2V0WDdA&w=470]
| 11
| 11
|
[
{
"comment_id": "327047",
"author": "dave",
"timestamp": "2011-02-08T15:22:43",
"content": "There’s no dislike button on Facebook.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327051",
"author": "Michael L.",
"timestamp": "2011-02-08T15:30:07",
"content": "Maybe he meant youtube? There are like and dislike buttons there. It seems to be an interesting build, but the jeering crowd could be a bit clearer, the applause is great though. Overall good job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327055",
"author": "Hacksaw",
"timestamp": "2011-02-08T15:43:02",
"content": "There needs to be a dislike button on facebook! I like the project and would like it more if it didn’t say “order now !” at the end.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327060",
"author": "Daniel",
"timestamp": "2011-02-08T15:58:48",
"content": "He blue circuit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327126",
"author": "HackerK",
"timestamp": "2011-02-08T17:22:02",
"content": "nicely done. example of kiss (keep it simple, stupid).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327129",
"author": "SteveO",
"timestamp": "2011-02-08T17:29:14",
"content": "what, no arduino???? no internet based monitoring???? what about remote manipulation???? Where’s the hack??? you have a typo in the story.ok, now that all the complaining is out of the way, no one has to post those whiner comments…nice job. maybe green would be better for thumbs up, but blue works too.I give it a thumbs up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327175",
"author": "Whatnot",
"timestamp": "2011-02-08T19:13:31",
"content": "@SteveO I guess the hack is the simulated mercury switch :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327429",
"author": "Colin",
"timestamp": "2011-02-09T01:15:20",
"content": "There is no dislike button on Facebook. Wouldn’t it be smarter to make only one of these and turn it over instead of fumbling around with two?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327489",
"author": "Torwag",
"timestamp": "2011-02-09T03:02:25",
"content": "Ahhh refreshing that some people remember that there was a time before you connected a microcontroller to a 3D accelerator MEMS sensors via a I2C bus….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327869",
"author": "Finder",
"timestamp": "2011-02-09T13:59:58",
"content": "@Colin: Good morning! That’s what it does ;)Torwag: Like",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327959",
"author": "bw",
"timestamp": "2011-02-09T16:28:10",
"content": ">dislike buttons of FacebookI see what you did there.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.614452
|
||
https://hackaday.com/2011/02/08/replace-an-n64s-worn-out-joystick/
|
Replace An N64’s Worn Out Joystick
|
Mike Szczys
|
[
"Nintendo Hacks"
] |
[
"analog",
"AVR",
"controller",
"Joystick",
"n64",
"pic",
"stick"
] |
As gaming consoles age the controllers will inevitably show some wear, and sadly may give out all together. [Kyle] couldn’t bear to watch his Nintendo 64 controller bite the dust so
he replaced the thumb stick with one from a PlayStation
. This is a bigger job than you might imagine because the two parts are fundamentally different. The original N64 stick uses a rotary encoder to output data to the control chip, while the PlayStation stick is an analog device. [Kyle’s] solution was to read the analog values using a PIC, but lower in the thread you can read about another user who pulled off a similar hack using an AVR. Both convert the signals into the rotary encoder format that the N64 chip is listening for. From the looks of the clip embedded after the break, this couldn’t work any better!
[youtube=http://www.youtube.com/watch?v=QFbFlmr-h2Q&w=470]
[Thanks Grazfather]
| 24
| 18
|
[
{
"comment_id": "326988",
"author": "aztraph",
"timestamp": "2011-02-08T13:45:38",
"content": "not bad job playing while holding a camera.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326991",
"author": "fartface",
"timestamp": "2011-02-08T13:57:58",
"content": "Or you could doit the hard way, and buy a N64 stick?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327043",
"author": "MrBishop",
"timestamp": "2011-02-08T15:12:31",
"content": "@farfaceWhere do you suggest he gets a new N64 Joystick without destroying a N64 Controller?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "589761",
"author": "Tsnocturne",
"timestamp": "2012-02-27T07:52:26",
"content": "Actually there is a redesigned 3rd party joystick that will last 10000x longer than the original. You can buy them for about 10$. Just swap out the worn out joystick for the redesigned new one and your good to go.",
"parent_id": "327043",
"depth": 2,
"replies": [
{
"comment_id": "612282",
"author": "Mon",
"timestamp": "2012-03-25T21:41:40",
"content": "For the love of god, man, you can’t say something like that and not give the name.",
"parent_id": "589761",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "327048",
"author": "Bob",
"timestamp": "2011-02-08T15:23:25",
"content": "This seems like a total overkill to get a worn out N64 control stick working again. You can dismantle the control stick. There are two pairs of plastic guide rails, one for the horizontal axis, one for the vertical axis, that the stick swings in. Its these that most commonly get worn out. Now, using a small piece of shapelock/”friendly plastic”/polymorph or even epoxy, the worn parts can be reconstructed back to their original shape. These materials will almost certainly be stronger than the original plastic used. Let it harden, make sure that stick can swing freely, and put it all back together again and start playing Mario Kart again to your hearts content.However, as a little programming project, this is a cool hack :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327056",
"author": "cpmike",
"timestamp": "2011-02-08T15:49:16",
"content": "N64 joysticks wearing out has been a problem since it first came out. You can get replacement drop-in joysticks for very cheap (http://www.amazon.com/Nintendo-Controller-Thumbstick-Joystick-Replacement/dp/B000F7V2GO) personally replaced all of the ones in my old controllers.This hack is a nice exercise, but its real value comes in the fact that the PSX thumb stick is much more comfortable feeling (smooth rubber coat), especially after lots of playing.. that alone may be worth trying this out..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327069",
"author": "Gdogg",
"timestamp": "2011-02-08T16:37:31",
"content": "I submitted this mod, so I’m obviously a fan of it.I like it because buying a replacement stick is only a temporary solution. The N64 joystick is broken by design, destined to wear out. There are pot-based n64 plug in replacements, and they work. But they wouldn’t be featured on this site ;)Also, the video shown above shows an OLD version. His new version has different deadzone options, and of course there are pins left over that allow you to add new buttons for whatever you need. Plus there’s a programming header so you can change the code without having to open up the controller.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "589762",
"author": "Tsnocturne",
"timestamp": "2012-02-27T07:55:48",
"content": "Again. Redesigned 3rd party joystick replacement. As durable as anything. here is the link.http://www.videogamemuseum.com/2011/05/15/n64-joystick-repair/",
"parent_id": "327069",
"depth": 2,
"replies": [
{
"comment_id": "968250",
"author": "Gdogg",
"timestamp": "2013-03-01T22:37:39",
"content": "Ah. Took a year for a reply… and another year for me to see it.",
"parent_id": "589762",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "327194",
"author": "Brennan",
"timestamp": "2011-02-08T19:38:37",
"content": "The Playstation analog stick is NOT better than the original N64 stick. Sad but true.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327200",
"author": "Jerren",
"timestamp": "2011-02-08T19:51:17",
"content": "This hack is sweet as hell. I’ve been repairing these with pieces of fiberglass PCB used as slide rails. I solved the friction problem with small roller bearings. They were attached with a small smooth shouldered screw. I had to cut a small portion of the end of the stick’s insert to accomplish it but it worked. What we have here today is something that seems like it would be a hell of a lot more accurate. The 007 screenshot is a nice touch too. Yes I do have this game and I still play it. That along with quite a few other classics. To sum it up, this is a great hack and I’ll probably wind up doing it with an Arduino. I’ll most likely use an xbox stick as they are easier to find for me. Once again, Great hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327207",
"author": "Gdogg",
"timestamp": "2011-02-08T20:04:01",
"content": "@Jerran: I’m doing it with an xbox controller too. He’s now using the wii classic controller as it has the octo gate.@Brennan they’re more comfortable, and last, but it’s harder to do ‘flick’ actions, which is horrible for smash bros. Fortunately you can do pretty much anything when it’s hooked up to a uC",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327233",
"author": "noone",
"timestamp": "2011-02-08T21:06:15",
"content": "i cant believe that someone actually wore out a n64 joystick, next someone will say the wore out a gamecube.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "461033",
"author": "colby",
"timestamp": "2011-09-21T12:22:47",
"content": "my gamecube controller joystick broke before, it was my first controller. i miss it so. ;(",
"parent_id": "327233",
"depth": 2,
"replies": []
},
{
"comment_id": "589763",
"author": "Tsnocturne",
"timestamp": "2012-02-27T07:57:14",
"content": "Really? i havn’t seen one in years that ISNT worn out. Obviously you never touched your n64 because it seemed like even looking at your controller would wear out the joystick.",
"parent_id": "327233",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "327234",
"author": "Pilotgeek",
"timestamp": "2011-02-08T21:07:42",
"content": "@Brennan: I STRONGLY disagree. The Playstation sticks are very smooth and just feel “right” in comparison to the N64’s hard plastic, with too long of a shaft, and rough motion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327363",
"author": "Anon",
"timestamp": "2011-02-09T00:02:25",
"content": "Using the rotary encoder made it accurate and held position better than (PS* XBOX*), PS controls move smooth in hand but a jumpy and flick POTS suck for anything but KNOBBING a board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327498",
"author": "MrTaco",
"timestamp": "2011-02-09T03:20:43",
"content": "@Bob: I pulled apart a couple of my N64 sticks recently because I was curious as to what exactly was wearing down to cause the wobble. To me, it seemed like it wasn’t those arms that were wearing, it was the white plastic “bowl” that the base of the control stick sits in.It seems to be made of a softer plastic than the stick itself, so over its lifetime it tends to grind it away, making the bowl deeper and causing the stick to “drop”. Its pivot point moves away from the centre of rotation, which gives it space to move freely without activating the rotary encoders. This is supported by the fact that if you get a new N64 controller, you can’t move the control stick anywhere along the Z-axis (if you take X and Y to be the directions it tilts), whereas worn ones have plenty of give in this direction.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327504",
"author": "adam",
"timestamp": "2011-02-09T03:31:33",
"content": "I was working at the college i go to during the summer and somebody came in asking about the same thing. Deja vu.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327638",
"author": "Gdogg",
"timestamp": "2011-02-09T06:54:42",
"content": "@MrTaco: I’ve noticed the same thing. A plastic ‘dust’ actually accumulates.@Anon: Yeah, good point. You could make the MCU not change the quadrature state unless the newX and nexY were a certain threshold distance away from oldX and oldY, and if they weren’t, don’t change state, and don’t move new to old. This effectively lowers the sensitivity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "328137",
"author": "andres",
"timestamp": "2011-02-09T19:53:27",
"content": "i had an old red n64 controller. i opened it up expecting an encoder but to my surprise it was a potentiometer. i guess it depends on the manufacturer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329188",
"author": "Gdogg",
"timestamp": "2011-02-10T17:15:20",
"content": "@andres a lot of the fake ones have pots. Yours just wasn’t authentic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "420681",
"author": "tootem",
"timestamp": "2011-07-21T08:49:24",
"content": "good controller and fair effort one handedis that city and colour playing in background btw?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.677239
|
||
https://hackaday.com/2011/02/07/home-built-revolving-shotgun/
|
Home Built Revolving Shotgun
|
James Munns
|
[
"Weapons Hacks"
] |
[
"automatic",
"bear",
"revolver",
"semi",
"shotgun",
"zombie"
] |
Sometimes, you just need more ammo available. In this
weapon mod
, the chamber of a 12 gauge shotgun, a hammer from an 1857 Remington Perc Revolver, and other parts from an Italian auto shotgun were all combined to make this happen. The gun is of questionable legality depending on what state or country it resides in. Don’t quote us on it, but the members of the forum seem to think it should be fine anywhere in the US but California. Slightly more practical than other
shotgun mods
we have seen, the inventor has been kind enough to share some stills of the inner mechanisms to see how this gun ticks.
[via
Neatorama
]
| 61
| 50
|
[
{
"comment_id": "326481",
"author": "Jakezilla",
"timestamp": "2011-02-08T00:40:23",
"content": "Awesome! I don’t think I would have the balls to shoot it, but if you are that confident in your build quality, more power to ya!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326489",
"author": "jc",
"timestamp": "2011-02-08T01:02:34",
"content": "Is it a bad thing if the first thing that comes to mind is Russian shotgun roulette?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326494",
"author": "Spork",
"timestamp": "2011-02-08T01:10:52",
"content": "Very very very cool! Wow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326499",
"author": "Wolf",
"timestamp": "2011-02-08T01:21:05",
"content": "Badass, I always want to see more firearms hacks. Unfortunately it sounds like he has to index the cylinders manually.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326501",
"author": "Wolf",
"timestamp": "2011-02-08T01:27:04",
"content": "Nm, should have read more carefully. Hell, the cylinder ratchet is right there in one of the pictures.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326502",
"author": "moxlon69",
"timestamp": "2011-02-08T01:28:39",
"content": "As far as I know, this would be legal in most states, unless being used for hunting. If I remember, shotguns that are used for hunting purposes can have a maximum of five rounds, but I could be wrong. On the other hand, I don’t think there would be any reasons (other than safety) why this would be illegal for skeet/trap shooting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326506",
"author": "Andrew Pollack",
"timestamp": "2011-02-08T01:38:14",
"content": "I wonder if there is a problem with the barrel heating up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326479",
"author": "spiritplumber",
"timestamp": "2011-02-08T00:39:38",
"content": "And if that don’t work, use more gun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326482",
"author": "IP727",
"timestamp": "2011-02-08T00:43:12",
"content": "A good “terminator” type shooter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326507",
"author": "CBob",
"timestamp": "2011-02-08T01:44:56",
"content": "Wow…Very retro & very cool. While I wouldn’t feed it 3.5″ magnum shells, 2 3/4″ should be just fine.Throw in a bandoleer of old style all brass (CBC) shells and you’re good to go for 1895.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326485",
"author": "Mahoney",
"timestamp": "2011-02-08T00:46:50",
"content": "I agree with legal anywhere but California, but maybe not for hunting. Most states only allow 1 in the chamber and 3 in the tube to keep hunting more sporting. Now he needs to make moon clips for faster reloads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326513",
"author": "Amos",
"timestamp": "2011-02-08T01:57:10",
"content": "Brilliant! Now it just needs a full-auto setting :DBTW, I think you found something to replace the “circuit-bending” article and/or ping-pong ball clock off to the right, there…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326492",
"author": "The Steven",
"timestamp": "2011-02-08T01:08:17",
"content": "I won’t ask “why”, we all know “why”.I won’t ask “how”, the build details will discuss that.What I will ask is: What problem does this solve?Is there anything that this does that something else doesn’t? Does it do something “better” than all the other options?Just asking…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326498",
"author": "cole",
"timestamp": "2011-02-08T01:20:49",
"content": "Must build now!!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326543",
"author": "chromesitar",
"timestamp": "2011-02-08T02:29:31",
"content": "Check out the Taurus Circuit Judge:http://www.usacarry.com/forums/long-guns-discussion/11193-if-you-like-judge-you-might-circuit-judge.htmlFires .410 and .45 Colt. Can’t wait to get one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326550",
"author": "Hirudinea",
"timestamp": "2011-02-08T02:33:42",
"content": "Just the thing for the comming Zompie Apocalypse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326552",
"author": "BobSmith",
"timestamp": "2011-02-08T02:35:21",
"content": "As far as the point on hunting with it goes, hunting laws are state laws, not federal. There’s no universal ammo limit, though most states set it fairly low for hunting. Check your state and local laws and regulations. Also, some states will let you use weapons with a higher capacity if you take some action to make it unable to fire more rounds, like putting in non-firing plugs in some of the chambers, etc. But again, this depends entirely on state regulations.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326555",
"author": "caleb",
"timestamp": "2011-02-08T02:38:27",
"content": "i see no legality issues in owning this firearm, or hunting with a few exceptions. as moxlon said, some states limit ammo capacity for different types of hunting. for deer hunting in NY where i grew up, you can have 6 rounds in a shotgun for deer hunting as well as smallgame and water fowl.here in Ohio, youre limited to 3 rounds for deer hunting. to do this you must have a plug in your magazine limiting you to 2 rounds in the tube, and the plug must removable only by removing the magazine tube assembly from the receiver.with that being said, if youre in a state that limits mag capacity for a certain type of hunting, this probably wouldnt fly with the DEC, as plugging and unplugging a revolving cylinder could be done without disassembly.my final thoughts on this, being quite the gun nut.. id love to take the time to build a shotgun like this.. or better yet, a pump action double barrel!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326518",
"author": "81rdm4n",
"timestamp": "2011-02-08T02:04:34",
"content": "This is totally awesome!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326558",
"author": "Standard Mischief",
"timestamp": "2011-02-08T02:43:44",
"content": "@moxlon69It varies from state to state. Here in Maryland it a max of 8 rounds for hunting. If the gun holds more than that you don’t need to modify anything, just don’t get caught with more than 8 loaded. I assume this is to accommodate the M1 Garand and its enbloc clip, though I have seen special clips that take only 5 rounds.keeping up with all the latest Federal and state and local laws; and BATFU letters and judgments and whatnot is a major pain in the a$$. Don’t let anyone tell you that old saw that firearms are completely exempt from regulation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326604",
"author": "xeracy",
"timestamp": "2011-02-08T03:46:09",
"content": "can we all agree that this is MOST DEFINITELY A HACK!?!?!?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326576",
"author": "lucas",
"timestamp": "2011-02-08T03:16:56",
"content": "someone is properly prepared for the zombie apocalypse.maybe he knows something we dont.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326614",
"author": "Oren Beck",
"timestamp": "2011-02-08T04:17:07",
"content": "Neat hack. It makes me happy to think we now have something useful for Chicago Cockroach hunts. Though the roaches are useful in the urban ecosystem they prey upon the rats. Don’t forget- Zombies are messy eaters and absent scavengers, the areas where Zombies have been feeding will reek to high Hell even after we exterminate the undeads I fondly recall shooting the first EDM ported .44 revolver we’d ever seen and ever since, I wanted to hack an EDM rig to port cheap junk pistols and make them “less wicked” to handle. Look at this:http://www.magnaport.com/hgun.htmlThey’ve been Hacking firearms a long time at a really high tech level. As IIRC hearing it- the “first” prototypical DIY muzzle porting was done with hacksaws literally baking the term “Hack” into the process itself!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326619",
"author": "Old man",
"timestamp": "2011-02-08T04:25:49",
"content": "@The Steven: “What I will ask is: What problem does this solve?”All those darned kids on my lawn!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326622",
"author": "Chris",
"timestamp": "2011-02-08T04:29:39",
"content": "if you liked that…..http://www.youtube.com/watch?v=4fB-VROHAzY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326627",
"author": "Hunter",
"timestamp": "2011-02-08T04:41:43",
"content": "Man, you guys beat me to the Zombie line. And yes, definitely a hack. A darn fine hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326645",
"author": "SheeEttin",
"timestamp": "2011-02-08T05:09:20",
"content": "xeracy: yes, certainly a hack, but where’s the Arduino?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326703",
"author": "tech-no-pest",
"timestamp": "2011-02-08T06:36:30",
"content": "or the 555 timer? :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326709",
"author": "ejonesss",
"timestamp": "2011-02-08T06:37:19",
"content": "i dont know if it is legal since modifying firearms is a federal offense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326711",
"author": "Akoi Meexx",
"timestamp": "2011-02-08T06:39:34",
"content": "For all trial and error, it looks like a beautiful build.@Chris: *jawdrop*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326716",
"author": "Akoi Meexx",
"timestamp": "2011-02-08T06:44:56",
"content": "@ejonesss: Technically… removing/modifying a firearm’s identifying marks, modifying a firearm into a fully automatic weapon, or shortening barrel length would be offenses. Modifying a stock or sight, or changing out cylinders, or mounting a scope could all be considered modifcations, and aren’t illegal. A blind statement of “modifying firearms is a federal offense” is just wrong. :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326721",
"author": "Spork",
"timestamp": "2011-02-08T06:56:41",
"content": "Why not in CA? It doesn’t have a pistol grip, it’s not less than 18″, and it does have a stock. Please clarify why it would be illegal here?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326723",
"author": "Jake",
"timestamp": "2011-02-08T07:00:45",
"content": "Meh. I’ll take my saiga 12 over this POS any day.It’s just like that semi-auto AA12 in the video, but cooler. I love this gun so much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326729",
"author": "rallen71366",
"timestamp": "2011-02-08T07:13:48",
"content": "Mmmm, reminds me of the South African Striker streetsweeper. You can have different kinds of ammo ready for random access. Not really meant for hunting. Animals, that is.I like it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326738",
"author": "Pete",
"timestamp": "2011-02-08T07:22:45",
"content": "This is a very nice build!However — the legality of this gun is not nearly as clear as many of you seem to believe. In fact, it would need to be decided by the ATF. I’d tend to believe they’d let it slide, but the truth is that it’s in their power to regulate it if they wish. Anyway, here’s the relevant law on the matter. Hopefully some of you find it as interesting as I did. :)Federal law has a classification of weapon called “Destructive Device.” Among other things, this category includes guns which have “barrel or barrels of which have a bore of more than one- half inch in diameter, except a shotgun or shotgun shell which the Secretary finds is generally recognized as particularly suitable for sporting purposes.” This is defined in 18 U.S.C. 921(a)(4):http://www.law.cornell.edu/uscode/uscode18/usc_sec_18_00000921—-000-.htmlA 12-gauge shotgun, like the one featured here, has a bore diameter of 0.729″. That means that, by default, it IS a Destructive Device and subject to additional regulation, registration, and taxes, unless specifically recognized by the ATF as “particularly suitable for sporting purposes.” Especially given the fact that he used parts from an “Italian auto shotgun” in his build, the ATF may not view this as a sporting shotgun.For real life examples of shotguns of a similar design that are restricted by the ATF under this law, check out the Streetsweeper or Striker-12 shotguns. Both use a revolving mechanism to feed ammo, like this build. Both are considered Destructive Devices. You may read the ATF’s ruling on the matter in ATF Ruling 94-2:http://www.atf.gov/publications/download/p/atf-p-5320-8/atf-p-5320-8-appendix-b.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326749",
"author": "Davo1111",
"timestamp": "2011-02-08T07:50:21",
"content": "Looks like a great build. For those who have a shotgun should already know the laws regarding how many shells they’re allowed to hold in the gun. Those people should be able to count :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326794",
"author": "Knuckleball",
"timestamp": "2011-02-08T09:26:51",
"content": "Shooting a homemade weapon is BALLS.I’m no weapons expert; but this guy better be careful, while they tolerate a lot; the authorities don’t mess around with firearms. ATF may be all over this guy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326808",
"author": "CutThroughStuffGuy",
"timestamp": "2011-02-08T09:49:03",
"content": "Why is shooting a homemade weapon BALLS? In the era of muzzleloaders, many people made their own rifles. You can legally make a flamethrower. Aside from the fact that you REALLY need to know what you are doing metallurgically and material science wise (containing mini explosions reliably over tens of thousands of rounds and all) – why, as you say, without even being an expert do you suggest that he may have issues? If you know he will, say so. If you don’t then don’t just speculate because it “seems like somebody might”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326864",
"author": "salec",
"timestamp": "2011-02-08T10:33:53",
"content": "CAUTION!From Wikipedia(http://en.wikipedia.org/wiki/Revolver):“The revolver mechanism was sometimes used in rifle design. The difficulty of this approach is that the hot gas that leaks from the gap between the cylinder and barrel can burn the user’s forward hand.”There’s a problem to be solved …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326917",
"author": "strider_mt2k",
"timestamp": "2011-02-08T11:10:10",
"content": "@ lucas you pegged it.It’s people like this and the ones who hand them ammo that will survive.RELOADING!In all seriousness this is a beautiful modification.It looks badass.-and yes I would also like a sawed-off pump action.-but only for the zombies, mind ya.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326929",
"author": "Germanguy",
"timestamp": "2011-02-08T11:26:10",
"content": "@salec:Not really. Since the cylinder and frame are of the loading gate (as opposed to swing-out) design, one could simply fab up a semicircular shield type thing that encloses the left (or right, depending on user’s handedness) front of the cylinder, with a metal band projecting 5mm or so back from the shield’s outer edge.Any gas would have to travel from the topmost chamber all the way down to the 8 o’ clock position, do a 90° turn, and still be hot enough to hurt. I just don’t see that hapenning, since shotguns are generally low-pressure, as opposed to rifles.Well, that, or go all-out and build a huge version of the Nagant revolver.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326974",
"author": "iHME",
"timestamp": "2011-02-08T12:39:17",
"content": "@salecThe guy who built it states that blowby is not a problem.@ejonesssModifying sertain apects of a gun are offences, like removing serial numbers, shortening the barrel under legal lenght without SBR tax-stamp or modifying a firearm for full auto without the proper paperwork.And I’d not concern myself with modifying laws as that gun is a scratch build, only the hammer,barrel and cutoff chambers are factorymade. Everything else is homebrew.You guys should check out the forum, loads of cool builds. From ar-15 rifles from blocks of Al to junkbox .22lr pistols.Homegunsmith.com and Weaponsguild.com are good sites for the qurious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326975",
"author": "theodore",
"timestamp": "2011-02-08T12:40:06",
"content": "well if you use it for hunting just put the legal number of rounds in it. wich is stupid, you can cary a backpack full of ammo anyways",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327029",
"author": "s1500",
"timestamp": "2011-02-08T14:24:34",
"content": "I swore you could get something like this in BioShock. You see, this is a lot better than that “hack” a few weeks back for the Acura NSX re-bodying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327046",
"author": "wn7ant",
"timestamp": "2011-02-08T15:22:09",
"content": "To answer the question:“Is there anything that this does that something else doesn’t? Does it do something “better” than all the other options?Just asking…”Why, yes. Remedial action for a revolver is: pull the trigger. What that means in english: If I’m firing a revolver, and something doesn’t work, my remedial action (way to fix it) is to pull the trigger again.For a home defense weapon I can think of no better design. Scatter so you don’t have to aim well, and revolver so you don’t have to worry about complications during a defensive situation. Absolute brilliance!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327073",
"author": "GameboyRMH",
"timestamp": "2011-02-08T16:44:39",
"content": "This reminds me of the Eliminator auto-shotgun from Stalker: Call of Pripyat. Best weapon for dealing with mutants up close :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327122",
"author": "Mark",
"timestamp": "2011-02-08T17:12:53",
"content": "hmm, looks like HaD maxed out the guys photobucket bandwidth. I can’t seem to view the pics in the forum he listed them, anyone have copies?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327162",
"author": "Nash",
"timestamp": "2011-02-08T18:50:10",
"content": "this is my primary weapon of choice for the zombie apocalypse. this, a S&W M&P .40, a sword, and a hella lotta ammo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327171",
"author": "JB",
"timestamp": "2011-02-08T19:06:49",
"content": "@Jake:Me too. Saiga 12 FTW. :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327228",
"author": "Whatnot",
"timestamp": "2011-02-08T20:55:40",
"content": "@The Steven What is solves is ejected shells all over the place, and you’d think california would appreciate that this keeps them in the gun, they are largely plastic for shotguns after all and california cares for the environment.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.791084
|
||
https://hackaday.com/2011/02/07/chroma-mesmerizing-led-driven-fractal-display/
|
Chroma – Mesmerizing LED Driven Fractal Display
|
Mike Nathan
|
[
"LED Hacks",
"Video Hacks"
] |
[
"art",
"led"
] |
A big fan of generative art, [Andrew Magill] wanted to build an
LED display for his wall
that constantly displayed images from the
Electric Sheep
project. After discounting the possibility of generating these fractals on the fly, he settled on using prerecorded video clips gathered over a year’s time by Electric Sheep users. With thousands of video clips in hand, he wrote some custom software that enabled him to sequence these 5-second video clips into just over 6 hours of video, which he later downsampled to fit his 24×16 pixel display.
Now that he had some impressive video put together, [Andrew] began designing the LED panels he would use to show off his creation. After choosing TI TLC5947 drivers to control the LED arrays, he got to work on designing the PCBs, soldering in all of the components, and testing the displays. Initial testing completed, he wrote some more custom software to direct the individual LED boards from a master controller, and mounted everything in a frosted-glass adorned picture frame.
Be sure to check out mesmerizing video of Chroma in action after the break.
[flickr video=http://www.flickr.com/photos/amagill/5318924313/]
[via
flickr
]
| 15
| 15
|
[
{
"comment_id": "326431",
"author": "Drake",
"timestamp": "2011-02-07T23:35:30",
"content": "Hrm. The video seems to be just the assembly . . . missing a video maybe?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326433",
"author": "ferdinand",
"timestamp": "2011-02-07T23:37:55",
"content": "thats the wronge videothis is soldering video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326437",
"author": "zemnmez",
"timestamp": "2011-02-07T23:42:49",
"content": "The vid should behttp://www.flickr.com/photos/amagill/5318924313/.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326445",
"author": "Jordan",
"timestamp": "2011-02-07T23:47:51",
"content": "http://www.flickr.com/apps/video/stewart.swf?v=71377this might help.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326446",
"author": "Jordan",
"timestamp": "2011-02-07T23:49:20",
"content": "Nope, sorry.http://www.flickr.com/photos/amagill/5318924313/Better?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326447",
"author": "Jordan",
"timestamp": "2011-02-07T23:49:53",
"content": "yes. I *so* am wishing I could edit comments….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326466",
"author": "dext3r",
"timestamp": "2011-02-08T00:12:02",
"content": "cool project and i enjoyed reading the writeup — it looks great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326475",
"author": "fdawg4l",
"timestamp": "2011-02-08T00:34:57",
"content": "Pretty cool and a neat exercise. But I wonder how much more/less work it would be to recycle a laptop LCD display and play the actual fractal video. One could remove the CCFL and replace it with some bright white LEDs and leave it on forever. A PIC for FB and keep the rest of the system to decode the video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326488",
"author": "MattE",
"timestamp": "2011-02-08T00:57:31",
"content": "Beautiful, nice work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326529",
"author": "WeAreMany",
"timestamp": "2011-02-08T02:20:10",
"content": "It is strange to see sheep so defused",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326771",
"author": "Nathan",
"timestamp": "2011-02-08T08:37:45",
"content": "Good write up on the build, thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327132",
"author": "AO",
"timestamp": "2011-02-08T17:33:41",
"content": "Great project and nice build!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327178",
"author": "Ferm",
"timestamp": "2011-02-08T19:15:31",
"content": "Beautiful results!!! Reminds me of a few late 70s sci-fi movies ive seen",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327196",
"author": "Brennan",
"timestamp": "2011-02-08T19:42:00",
"content": "Wowza, this is amazing, and a really good write-up to boot. I love Electric Sheep and having one of these on the wall would be fantastic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327229",
"author": "Whatnot",
"timestamp": "2011-02-08T20:58:07",
"content": "You can achieve the same effect by zooming a camera on a highway and focusing out.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,280.975517
|
||
https://hackaday.com/2011/02/07/fowl-accommodations-provided-by-mathematics/
|
Fowl Accommodations Provided By Mathematics
|
Mike Szczys
|
[
"home hacks"
] |
[
"chicken",
"coop",
"dome",
"geodesic"
] |
[Anthony’s] chickens happily return to roost each night thanks to
the spacious house he built for them
. Sadly the geodesic dome never became the home of the future despite
what the people were promised
. But using a bit of unorthodox joinery you can create enclosures for your chickens or other animals in need of shelter.
The construction begins with 30 isosceles triangles and nine equilateral triangles which he cut from solid wood on a chop saw. To join the pieces he used metal banding and screws, which hold the edges close together but allow them to flex. This solved the problem of precision mitres at the edge of each wood piece. Once the dome was fully assembled he filled the joints with caulk and finished it with rubber roofing compound.
Our only question is: how’s he going to
automate the door of the coop
?
| 19
| 19
|
[
{
"comment_id": "326395",
"author": "Moggie100",
"timestamp": "2011-02-07T22:42:08",
"content": "‘Coop’ darnit…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326397",
"author": "BadWolf",
"timestamp": "2011-02-07T22:47:28",
"content": "where’s the hack in that?you might as well feature people making gazebos now..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326400",
"author": "Revolver",
"timestamp": "2011-02-07T22:54:58",
"content": "Nice!I always wanted to make a geodesic comfy chair. Similar to the Eero Aarnio bubble chairs. Do you think the metal joints would be sturdy enough to support a 90 kilo meatbag? Losing weight is not an option. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326414",
"author": "JC",
"timestamp": "2011-02-07T23:08:21",
"content": "Well I thought it was cool…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326420",
"author": "Sage",
"timestamp": "2011-02-07T23:16:58",
"content": "Why is the first post on any new article ‘Wow I can’t believe hack a day is putting THIS up now?’Get. Over. Yourselves.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326428",
"author": "magnavoid",
"timestamp": "2011-02-07T23:24:43",
"content": "seriously? how is that remotely a hack at all? yeah sure its kinda cool, if you’re into that kind of thing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326441",
"author": "WeAreMany",
"timestamp": "2011-02-07T23:45:29",
"content": "Not to take away from what Anthony has done. The article was enjoyable and what he has made is a great build. The use of the materials for the joints was creative. I would like to see an 2ndary modification to this buildup from the original design. Then I would consider that a Hack.I would like to See a Temp probe or Coyote proximity alarms :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326452",
"author": "M",
"timestamp": "2011-02-07T23:58:35",
"content": "Neat project enclosure!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326469",
"author": "Wes",
"timestamp": "2011-02-08T00:20:43",
"content": "Let’s just hope the chickens don’t stage a “coup.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326473",
"author": "HackJack",
"timestamp": "2011-02-08T00:26:37",
"content": "A looks more like an alien abduction taking place.Very cool though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326535",
"author": "Hirudinea",
"timestamp": "2011-02-08T02:28:24",
"content": "Was this build by Chrysler?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326635",
"author": "Drackar",
"timestamp": "2011-02-08T04:56:06",
"content": "Item one…It doesn’t matter how roomy a hen house is. The hens will always try to roost anywhere else, at least occasionally.Secondly…the removable lid is a great design…the low roof will help keep it warmer in the winter, and yet makes it easier to get at the eggs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326656",
"author": "o",
"timestamp": "2011-02-08T05:32:20",
"content": "Gazebo A Day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326920",
"author": "strider_mt2k",
"timestamp": "2011-02-08T11:12:07",
"content": "Shut up.It’s geodesic.Haters make Bucky cry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326966",
"author": "IanB",
"timestamp": "2011-02-08T12:10:27",
"content": "Ramp is too big – not fox proof – needs to be a single thin stick with unevenly spaced rungs across",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326979",
"author": "echodelta",
"timestamp": "2011-02-08T12:57:46",
"content": "A coupe de deauxdec. Look at old Dr Who episodes for door details, also B grade sci-fy. Dwino powered of course. Where are the ladies?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327042",
"author": "nimitzbrood",
"timestamp": "2011-02-08T15:08:35",
"content": "@WeAreMany – I like what he’s done so far but you’re right in that something like a 1-wire temp unit or other sensors would add a lot.I think I’ve figured out how to automate the door. Put a piece of u-channel on the right side, put a triangle door on a single pin/bolt on the left side, then use either a motorized cable or worm gear in the u-channel to rotate the door closed.The u-channel keeps the door from flopping around and holds it from both inside force (chickens trying to get out) and outside force (beasts trying to get in).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327127",
"author": "bty",
"timestamp": "2011-02-08T17:25:19",
"content": "very nice result and interesting build log.some resume, the guys has a biomedical doctorate and a masters in CS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "327138",
"author": "Rob",
"timestamp": "2011-02-08T17:52:22",
"content": "I will hopefully be raising chickens soon, this and an automated door will make happy chickens!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,281.083091
|
||
https://hackaday.com/2011/02/07/laptop-lcd-reused-in-beagleboard-project/
|
Laptop LCD Reused In Beagleboard Project
|
Mike Szczys
|
[
"Microcontrollers",
"Multitouch Hacks"
] |
[
"arm",
"atmega48",
"beagleboard",
"ds90c363",
"lcd",
"lvds",
"vga"
] |
This daughterboard lets [Matt Evans]
drive a laptop LCD using a Beagleboard
. Apparently the Beagleboard gained a VGA header when it moved to revision C but [Matt’s] working with revision B4 which is why he had to do all of that ninja soldering with the blue wires. The driver board itself is a thing of beauty, hosting a DS90C363
LVDS
serialiser as well as some buffer chips that handle level conversion for it. He’s also included an ATmega48 so that he has some options for future improvements.
The LCD is mounted in a custom acrylic case, with Beagleboard and driver board taped to the back of it. There’s RS232 and a USB hub which opens up the possibility of using a WiFi dongle for communications. So far he doesn’t have much functionality other than displaying images on the screen but there is some talk about using a touchpad for control. We’d love to see a touchscreen overlay, transforming the build into
a proper ARM-based tablet
.
| 15
| 15
|
[
{
"comment_id": "326366",
"author": "Erik Johnson",
"timestamp": "2011-02-07T21:39:39",
"content": "I have a rev C4 which has a header explicitly for this… But very cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326373",
"author": "David",
"timestamp": "2011-02-07T21:45:14",
"content": "Nitpick: this has nothing to do with the presence or absence of VGA output. Laptop panels need a digital signal; VGA is analog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326387",
"author": "Fallen",
"timestamp": "2011-02-07T22:30:58",
"content": "Agreed David.I have a few panels, and would like to find a cost effective way to drive them. But VGA-LVDS adapter etc are pretty expensive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326408",
"author": "blakmatr",
"timestamp": "2011-02-07T23:01:23",
"content": "I was wondering if this was doable. I’ve got gobs of LVDS displays that I couldn’t use. Now I can greenlight that pipboy project, ha!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326426",
"author": "Chris",
"timestamp": "2011-02-07T23:20:17",
"content": "@Fallen : i found this “njytouch” firm, they sell VGA->LVDS converters :http://shop.ebay.com/njytouch/m.htmlI am thinking about buying one but I’d like to know if it can be DIY (FPGA ? …)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326444",
"author": "xmd",
"timestamp": "2011-02-07T23:47:50",
"content": "This is just a shameless plug to say Matt is a member of the budding hackerspace Make Hack Void in Australia.Also – have a close look at the number and pitch of hookup wires required to be handsoldered to pull off this hack. Legendary.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326465",
"author": "MattE",
"timestamp": "2011-02-08T00:10:18",
"content": "Cheers xmd :DRegarding VGA: like lots of embedded boards, the OMAP3 on the Beagleboard gives a 24bit digital video output, not analog VGA; but this is better really, as it can drive an LVDS serialiser directly rather than messing around with ADC then LVDS.@Erik: Lucky you :) I just had a B4 without unfortunately. This hack would be much easier on your C4 (just solder to the provided header).@fallen/blakmatr: Have you thought about using DVI? I think something like DVI->TMDS deserialiser->24bpp parallel->LVDS serialiser->TFT panel may work. (You’d set video modes manually, though some TFT panels even have EDID chips.) Course if you have the parallel pixel data/clock/syncs it’s easier still. (Can post schematics if you want.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326521",
"author": "nes",
"timestamp": "2011-02-08T02:07:11",
"content": "Sweet hack. I’d never have the patience to see this thru.@Chris: If you’re using a recent-ish FPGA (anything with SERDES’s), you can drive the LVDS directly without too much effort – no need for a separate serialiser. Any decent panel datasheet will have a detailed description of the protocol used and waveforms, etc. It’s not that complicated. I’ve done it with 1280×1024 and 1024×768 panels, both had LVDS interfaces.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326572",
"author": "_matt",
"timestamp": "2011-02-08T03:11:45",
"content": "Regarding lvds connectors, how would one salvage a laptop lcd panel?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326574",
"author": "MattE",
"timestamp": "2011-02-08T03:15:34",
"content": "@_matt, that’s a tough one; connectors/cables are often really hard to source/expensive/proprietary. If it’s a one-off, I strongly suggest reusing the laptop LCD cable if possible, including the PCB connector. It’s possible to cut the connector off and solder the centre of the *tiny* coax lines but it’s a bit of a nightmare doing that. Desolder/scalpel off the PCB connector. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326578",
"author": "_matt",
"timestamp": "2011-02-08T03:24:34",
"content": "Luckily, the connector on the mobo has the pins all on one side. Now, for a person without a beagleboard, what’s the cheapest way to run the panel?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326640",
"author": "rasz",
"timestamp": "2011-02-08T05:02:44",
"content": "MattE I just spend 2 hours reading your website. Every project is a pure gold, dude you ROCK! :)I especially liked your openwrt Jtag hack, it would be perfect if there was a way to make it talk to openocd.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326657",
"author": "o",
"timestamp": "2011-02-08T05:33:42",
"content": "I hate LVDS. I have two LVDS panels. No way to hook them up without tons of circuitry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326745",
"author": "rasz",
"timestamp": "2011-02-08T07:43:37",
"content": "hint: most of lcd panels have deserializers as the first chips after the connector, just bypass it and you have paraller interface",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326922",
"author": "strider_mt2k",
"timestamp": "2011-02-08T11:13:25",
"content": "Oh man, a buddy at work is re purposing an old laptop display.I have to show him this!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,281.028077
|
||
https://hackaday.com/2011/02/07/a-charlieplex-display-and-a-board-layout-tip/
|
A Charlieplex Display And A Board Layout Tip
|
Mike Szczys
|
[
"LED Hacks",
"Microcontrollers"
] |
[
"attiny85",
"charlieplex",
"conways game of life",
"led",
"matrix"
] |
[Ben] is getting himself up to speed with microcontrollers. He jumped into the deep end by taking on
this Charlieplex LED matrix build
. As you can see after the break, he not only made the display work, but coded Conway’s game of life to run on the ATtiny85 that drives the device. What you see above is the prototype version that [Ben] used to make sure he had the hardware just right. He’s seeing the project through to a manufactured board and this is where the layout tip comes from. In order to make sure he had enough space for all of his components he printed out the board artwork, taped it to some Styrofoam, and then inserted all of the through-hole parts. Now he can be sure that physically the design works, we’ll keep our fingers crossed that everything is also kosher electrically.
[youtube=http://www.youtube.com/watch?v=1tDld6WW00Y&w=470]
| 7
| 7
|
[
{
"comment_id": "326310",
"author": "Apexys",
"timestamp": "2011-02-07T20:20:07",
"content": "Nice!Didn’t know charlieplexing needs that few wires.Cool hack!apexys",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326319",
"author": "Ben",
"timestamp": "2011-02-07T20:28:35",
"content": "Yup, you can control a lot of LEDs the higher you go. If you have X wires, you can control (X*(X-1)) LEDs… so 5 wires = (5*4) = 20 LEDs. But you can only light one at a time. I imagine if you try to run too many at once you might see some flicker.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326326",
"author": "xeracy",
"timestamp": "2011-02-07T20:36:57",
"content": "http://en.wikipedia.org/wiki/Charlieplexingwas gonna copy/paste, but theres good pictures of examples.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326333",
"author": "Apexys",
"timestamp": "2011-02-07T20:48:49",
"content": "It is really a great technology!But the wikipedia article is a bit to complex for me. The description Ben wrote is easier to understand.Apexys",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326355",
"author": "roboman2444",
"timestamp": "2011-02-07T21:27:19",
"content": "+1 for the game of life stuff in the vid",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326417",
"author": "Slanderer",
"timestamp": "2011-02-07T23:12:37",
"content": "@Ben : The flickering really isn’t an issue. However, “ghosting” can be an issue (ie, extra LEDs dimly lighting). Furthermore, if one LED fails, you’re boned.With regard to strobing LEDs, its perfectly fine if the refresh rate is high enough. Simply make the pulses brighter, and you can decrease the pulse width required. A lot of LEDs have specifications for driving w/o a resistor at a certain PWM width (such that the self-heating due to internal resistance is within specs), which means you can maximize brightness for a short pulse, perfect for strobing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "328720",
"author": "Spork",
"timestamp": "2011-02-10T05:53:23",
"content": "@SlandererAll you need is reflective lenses for your strobe-LED’s and you could have a non-lethal weapon!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,281.129287
|
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