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https://hackaday.com/2010/12/02/vacuum-forming-at-home/
|
Vacuum Forming At Home
|
Mike Szczys
|
[
"Tool Hacks"
] |
[
"form",
"forming",
"pegboard",
"vacuum"
] |
A little dumpster-diving let [Nick Skvarla]
build his vacuum form machine
for around $5. He pulled a vacuum cleaner out of the trash, which was tossed away because of a broken power plug. He put it into a box which had been sealed with spray foam and used a piece of pegboard for the top side of the enclosure. He takes a piece of 40 mil PETG plastic from the hobby shop and mounts it in a wooden frame. That goes into the oven on broil until the entire sheet is sagging, then onto the vacuum former. Above he’s making forms out of some figurines which he’ll walk you through in the video after the break.
There’s a whole world of manufacturing processes that use these forms as a starting point. What would you use this for?
| 50
| 48
|
[
{
"comment_id": "235196",
"author": "Calculon",
"timestamp": "2010-12-02T22:20:43",
"content": "Looks pretty good!Way much better than the Kipkay crap from in here:http://www.youtube.com/watch?v=e5CGfoxnKaQ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "235229",
"author": "Decius",
"timestamp": "2010-12-02T22:30:31",
"content": "To make perfectly packaged Christmas Cookies!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "235583",
"author": "Munden",
"timestamp": "2010-12-02T22:52:26",
"content": "Awesome post! I’ve been very close to building one of these before but I never knew what plastic sheeting I could use. I also didn’t want to test out samples.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "235678",
"author": "NickS",
"timestamp": "2010-12-02T23:09:46",
"content": "@Calculon: I used that video as a starting point, but all the designs I found used a shopvac for the suction which just seemed cumbersome. I had a lot of scrap lumber around and had found the broken vac and pegboard in a dumpster, so I decided to make my own design.@Munden: I found the sheeting at a craft store. Apparently it’s used a lot in model railroads and RC car bodies. I would like to find larger/cheaper sheets, but haven’t looked much yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "235714",
"author": "Mark",
"timestamp": "2010-12-02T23:20:33",
"content": "You should experiment with covering holes that are not needed/used with duct tape to get a better vacuum. I walked through a shop that made golf carts using this process. They used a Shop-Vac for ten foot square sheets. They used the duct tape to cover holes that weren’t needed. I am sure that your little vacuum is up to the job. Also, the holes they had drilled in the mold were very small, like 1/16th.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "236250",
"author": "MS3FGX",
"timestamp": "2010-12-02T23:47:22",
"content": "My father was really big into vacuum forming when he was young, said they were building whole bodies for RC vehicles, electronics enclosures, etc.Seems like it is kind of a lost art, everyone is so into extruded plastic reprap style construction that they ignore something simple enough you can do in the kitchen without any complex equipment.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641355",
"author": "Mark D",
"timestamp": "2023-05-10T13:29:26",
"content": "Is PC toxic i need to make a new top plate for the bcd396xt which is no longer available?",
"parent_id": "236250",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "236332",
"author": "mess_maker",
"timestamp": "2010-12-02T23:54:41",
"content": "That is great, Nick, I like it. I have been wanting a vacuum form for a while, not sure what I would do with it, but it could be fun.I have watched a few videos of home vac-forms and the thing that sticks out to me is the glaring need for a knee or foot switch. Everyone seems to have a moment where they must take their hand off the plastic frame to hit the switch and it just seems there is an easier, more stable way to do it. Just a thought.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6422444",
"author": "then",
"timestamp": "2022-02-08T10:35:47",
"content": "haha the switches on professional machines are insanely cumbersome. I prefer this diy way, plus can just hit the switch of my vacuum cleaner with my foot (as its designed for that).",
"parent_id": "236332",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "236357",
"author": "darus67",
"timestamp": "2010-12-02T23:58:19",
"content": "You could print master object(s) on your 3-d printer or carve them on your CNC mill then create negative molds with the vacuum former.Use the resulting mold to cast copies in wax/plaster/silicone/sugru/soap/frosting/chocolate/etc…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "236541",
"author": "G-reg",
"timestamp": "2010-12-03T00:15:23",
"content": "Team this with a foam chunk, hot knife, moldable plastic beads nd hot water… welcome to the cheapest way to custome build any chassis piece. And subsequently WORLD DOMINATION!!!MWWWAAHHHAAAHAAA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "236759",
"author": "Trooper",
"timestamp": "2010-12-03T01:09:59",
"content": "What would I use my own vacuum forming box for? Why molding my own Stormtrooper armor of course!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "236772",
"author": "Jordan",
"timestamp": "2010-12-03T01:14:40",
"content": "“You could print master object(s) on your 3-d printer or carve them on your CNC mill then create negative molds with the vacuum former.Use the resulting mold to cast copies in wax/plaster/silicone/sugru/soap/frosting/chocolate/etc…”I immediately thought of using this for chocolate molds. Say good-bye to those expensive Wilton molds….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "236796",
"author": "Haasebert",
"timestamp": "2010-12-03T01:23:03",
"content": "I just started doing this with a very similar setup… just a cookie tin with holes poked in it and some other minor mods.A good plastic to use if you don’t need a clear finished piece is HDPE – commonly found in my house in the form of milk jugs or bottles of windshield wiper fluid. Heat it until it turns clear and starts to sag, and you’re ready to go!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "236905",
"author": "Drake",
"timestamp": "2010-12-03T01:58:08",
"content": "Lucky me is getting a hold of a retired vacuum former from a local high school. What should I make with it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237021",
"author": "CutThroughStuffGuy",
"timestamp": "2010-12-03T02:11:17",
"content": "Are comments broken?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237035",
"author": "JA",
"timestamp": "2010-12-03T02:15:03",
"content": "I’ve not done vacuum forming nor I have project going on that could use it, but I’ve had this idea for some time now that this could be useful in mold making for fiberglass/cf parts.More in detail: make a plug (the model, positive mold) out of something that’s easy to work with (wood) or use existing item, then vacuum forming thin (if very detailed) plastic over it, and adding structural materials on top of the plastic while it is still on top of the plug. Anyone done this?Maybe not the best method for large quantity production but I just thought it might be quicker way to make a mold for dozen or so parts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237055",
"author": "P",
"timestamp": "2010-12-03T02:23:20",
"content": "it really grinds my gears when people throw things out because of trivial problems/breakdownsa new plug can be had at the hardware store for about a dollargood writeup",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237224",
"author": "rallen71366",
"timestamp": "2010-12-03T03:14:25",
"content": "That’s very cool. I’ve run a vacuum former for making custom chocolate molds for “Executive Novelties and Marketing”. Shit for the PHB’s. We made our plugs from cherry wood, with a slight bevel on the edges, and drilled very small holes in any internal corners to evacuate any trapped air. Before I would use the plug, I would wipe it down with PAM, or some other food-safe oil/lubricant.@JA: I don’t think a vacuum former actually pulls a high enough, or consistent enough, vacuum for doing composite layups, and usually the plug is coated with PVA wax for a release agent. The techniques are similar, but the equipment requirements are different. The vacuum former needs high airflow/low vacuum. The bag press for composites needs low airflow/high vacuum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237226",
"author": "sandrusz",
"timestamp": "2010-12-03T03:15:18",
"content": "Anyone here old enough to remember this? I played with it for hours.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237261",
"author": "sn0b0ardr",
"timestamp": "2010-12-03T03:24:33",
"content": "Wow… I had never even HEARD of this process before this post. So simple, yet so ingenious! Going to have to try this out!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237277",
"author": "Michael Chen",
"timestamp": "2010-12-03T03:30:16",
"content": "I hate when people throw perfectly repairable machines to the thrash. (The vacuum cleaner)This shows when one doesn’t own the device. If you can’t open it, its not yours.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237282",
"author": "CutThroughStuffGuy",
"timestamp": "2010-12-03T03:31:53",
"content": "By “Executive Novelties and Marketing” do you mean sex toys?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237286",
"author": "CutThroughStuffGuy",
"timestamp": "2010-12-03T03:32:34",
"content": "Not sure why this comment didn’t show up? Refreshed and waited a bit – sorry if it is a duplicate!As to suppliers:Onlinemetals, McMaster and USPlastics will have the materials you are looking for at decent (but not rock bottom) prices.Your local plastics supplier (look online) in full 48″ x 96″ (or larger) sheets will likely be the best price. For thin material, they can roll it up for you and ship it in a tube form through UPS (freight charges start at $100 and go up and up from there with liftgate delivery).Keep in mind that you can only use thermoplastics for this application (not thermoset). Think Polypropylene, Polyethylene (HDPE, LDPE), Acrylic (not Lexan, which is polycarbonate), and the like.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237466",
"author": "Spork",
"timestamp": "2010-12-03T04:25:12",
"content": "Tapplastics is the cheapest I know of.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237668",
"author": "Don",
"timestamp": "2010-12-03T05:25:23",
"content": "Made one a while back out of a cookie sheet, plywood and conduit; attaches to my shop vac. My purpose was/is to form body/exterior panels for my yet to be finished robot!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237876",
"author": "quezz38",
"timestamp": "2010-12-03T05:56:27",
"content": "this is a nice little setup for vacuum forming small parts and doodads. i’d really like to build a large one (2x4ish) with an included heat source. hmm… maybe an arduino controller for it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237955",
"author": "Terry",
"timestamp": "2010-12-03T06:20:11",
"content": "I recently read that some of the home vacuum formers were using a cheap electric skillet as a heat source. Apparently they provide a fairly wide heat pattern and are easy to find at any Target or WalMart for under $20.Electric skillets also seem to be a tool of choice for other hardware hacks so many of the circuits you may want to add have already been written about in great detail.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238295",
"author": "Mikey",
"timestamp": "2010-12-03T08:19:47",
"content": "This is freakin cool. If you don’t have a 3d printer you could make something out of layers of thick paper or cardboard glued together and then vacuum form it… though you can’t do all the same things or get the same accuracy, it’s still freakin cool.Oh also, the storm trooper outfits themselves were vacuum formed, not made from vacuum formed molds.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238778",
"author": "strider_mt2k",
"timestamp": "2010-12-03T10:34:54",
"content": "I wonder if you could form you own speaker cones for some DIY audio stuff?Full size traffic cone reproductions. (For VLC fans)-and of course making custom packing/shipping containers for valuable or fragile items.Very resourceful hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238979",
"author": "JA",
"timestamp": "2010-12-03T11:48:04",
"content": "@rallen71366I didn’t say anything about making a fg/cf part with vacuum former. That wouldn’t work. I was talking about making the mold for the part.Why I thought of vacuum forming? Because the mold is as (or more) tedious to make as the part itself. And the top surface of the negative mold is usually gel coat (before wax and pva) so swapping this to plastic shouldn’t be a problem.Oh well. I just have to try it when doing some fg/cf work. Whenever that is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238988",
"author": "ghost",
"timestamp": "2010-12-03T11:51:16",
"content": "I tore apart three toaster ovens for the heating elements, for my version of this (no transport of hot plastic, just slide the mold tray down over form), I even put a momentary O/I switch on the base to activate the vacuum. Also used a bit of an old air hockey table instead of peg board so the little divots in the plastic are smaller. I’m thinking of using screen as a base for the next version tough.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "239025",
"author": "Mr. Name Required",
"timestamp": "2010-12-03T12:10:57",
"content": "Second the comment about getting plastic sheet from a plastics supply store. Buying the Evergreen stuff from your local hobby store is a VERY expensive way to acquire sheet. I bought some large sheets of styrene in various thicknesses for my scratchbuilding projects and the price was quite good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "239167",
"author": "hola_jerzy",
"timestamp": "2010-12-03T12:58:29",
"content": "I’m thinking of trying this but to use and electric quartz space heater as the heat source above the vacuum form.As for plastic sources: Our local hardware store carries a full line of plastic sheets (clear, white translucent) that I’ve tested quickly with a lighter for malleability. I wonder is a local sign shop would part with some also…This will be a great way to produce lightweight identical pieces for models.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "239238",
"author": "rapps",
"timestamp": "2010-12-03T13:22:18",
"content": "I made one ( 1mt X 40 cm ) of these when i was into Nitro RC cars to make the whole body kits, worked like a charm.I really like anime and manga, so i started to build tokusatsu armors like these:(my cosplay site, it’s in portuguese)http://cosmaniac.wordpress.com/2009/09/01/cosmake-unidade-lucifer-cybercops/Daft punk helmets anyone?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "239846",
"author": "Andreas",
"timestamp": "2010-12-03T17:06:14",
"content": "A looong time ago, I was on a club that made their own slotcars, my IT teacher ran it and has made something similar to this, the original site does not exist anymore but I found 1 good picture on archive.org depicting the purpose:http://web.archive.org/web/20050212003938/www.lcl.nl/slotcar/welkom/od-3.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "240082",
"author": "Coligny",
"timestamp": "2010-12-03T18:19:46",
"content": "thermoformed by vacuum lexan is the primary way to make rc cars bodies… cutthroughstuffguy get your fact straight sometimes…. or call tamiya and kyosho to tell them they are doing it wrong…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "240115",
"author": "jonored",
"timestamp": "2010-12-03T18:28:37",
"content": "@CutThroughStuffGuy – Polycarbonate is a thermoplastic too, you just need to get it about a hundred degrees C hotter than PMMA (acrylic glass). We’ve done some hot bending of lexan for FIRST robotics, worked fine, should work okay for this, just a bit more heat involved. Might require hotter than an oven, might not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "240229",
"author": "dan fruzzetti",
"timestamp": "2010-12-03T19:10:16",
"content": "I don’t know what you guys are thinking, but here’s my thought:Lego candy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "240250",
"author": "Mike Szczys",
"timestamp": "2010-12-03T19:17:44",
"content": "@dan fruzzetti: Total win. I’m thinking LEGO chocolates that are dyed to color match the blocks… just don’t let the littles ones see them or you’ll have a trip to hospital in your future.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "240520",
"author": "CutThroughStuffGuy",
"timestamp": "2010-12-03T20:43:06",
"content": "I retract my previous statement about polycarbonate. It is extrusion melted in plastic fabrication all day long – which makes it a thermoplastic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "240960",
"author": "dm",
"timestamp": "2010-12-03T22:00:58",
"content": "I worked in a theatrical scene shop for a few years. Our vacuum former was handmade by a former shop employee. It takes 4×8 sheets of plastic, and we would drill 1/16″ holes in the model. The plastic was suspended in a frame between oven-heating elements and the model; the plastic in the middle would sag about 18″ down. Drop the frame and boom, you have vacuum molded whatever. It is a phenomenal tool! We were making shells of logs; the plastic shell was tacked to the walls and painted to look like a cabin. The detail was good enough that it looked like real painted wood from about 5 feet away. And someone made it in their garage! I don’t know where they found the vacuum pump though: it weighed about 500 lbs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "243653",
"author": "otakucore",
"timestamp": "2010-12-04T08:23:40",
"content": "I wonder if a discarded home vacuum would be strong enough to achieve vacuum compression on food. Seal-a-Meal-like machines will seal food, but won’t compress it like commercial vacuum sealers, so the home chef is limited in what transformations he can perform on food.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "246728",
"author": "CutThroughStuffGuy",
"timestamp": "2010-12-04T19:21:50",
"content": "I would suggest using a regenerative blower for this if you are going to go big. Something with low pressure, high flow. Think shop-vac vs vacuum pump only with a much higher duty cycle and lots more “suck”.You can pull close to 30 inches of mercury with these things. Shop-vacs start to crap out at about 3.5 or 4 inches.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "253817",
"author": "medwardl",
"timestamp": "2010-12-06T01:03:23",
"content": "How detailed can these get? I was thinking of making some copies of sprues of warhammer 40k figures, if it could be detailed enough this could be a great way to save a ton of money on building these figurines.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "679931",
"author": "petercena12",
"timestamp": "2012-06-13T11:08:16",
"content": "Agreed, it is a nice way of vacuum forming but with the help of infrared heaters and vacuum cleaner, vacuum forming can be done at home easily and that will be better than any other way. Infrared heaters will provide you an option to use thick plastic sheets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "679932",
"author": "petercena12",
"timestamp": "2012-06-13T11:10:54",
"content": "Agreed,vacuum forming of plasticcan be done by above method, but with the help of infrared heaters and vacuum cleaner, vacuum forming can be done at home easily and that will be better than any other way. Infrared heaters will provide you an option to use thick plastic sheets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "909861",
"author": "EL",
"timestamp": "2012-12-26T15:19:24",
"content": "This is so cool , I would like to make molds to cast resin. Does anyone know what type of plastic sheet I can use? I also would like to find a tutroial on how to make my own vacuum forming machine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3502828",
"author": "lies den artikel",
"timestamp": "2017-04-04T11:01:04",
"content": "Ihre alte Fotze wurde richtig kribbelig vor Geilheit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6422448",
"author": "then",
"timestamp": "2022-02-08T10:42:12",
"content": "han solo!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,327.964167
|
||
https://hackaday.com/2010/11/29/drill-press-for-through-hole-pcb-manufacturing/
|
Drill Press For Through-hole PCB Manufacturing
|
Mike Szczys
|
[
"Tool Hacks"
] |
[
"bit",
"drill press",
"pcb"
] |
This drill press was built to
drill through-hole printed circuit boards
. [Rhys Goodwin] didn’t want to shell out for new equipment, so he dug through his scraps to see what he could accomplish. He already had the power drill, and there was no shortage of wood and fasteners. Once he had a mounting platform for the power tool he grabbed a pair of slides from and old rack-mount server rail. This provides smooth and precise movement, along with a tension sprint to keep the rig elevated above the work surface. Turns out the only thing he didn’t already have was the mini-chuck for gripping the 0.8 mm drill bit.
It seems as if [Rhys] is hacking up a storm lately. This drill press is for use with
his Inkjet/Toner PCB process
from two weeks ago. We also covered his bulk component salvaging system in
Sunday’s Links post
.
| 17
| 17
|
[
{
"comment_id": "221115",
"author": "Jordan",
"timestamp": "2010-11-29T23:33:51",
"content": "I am totally going to do this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221135",
"author": "Spork",
"timestamp": "2010-11-30T00:14:07",
"content": "More expensive than a real drill press if you don’t already have a drill/wood to spare. Especially more expensive if it shakes at all as you will break expensive wire drill bits.My press was only like $80 and it’s solid steel, gives nice perfect cuts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221139",
"author": "MS3FGX",
"timestamp": "2010-11-30T00:17:29",
"content": "Clever idea and would work in a pinch, but like already said, drill presses aren’t that much money.If you are going to cheap out on anything, it really shouldn’t be your tools.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221151",
"author": "tyco",
"timestamp": "2010-11-30T00:41:56",
"content": "I just use the plunge router attachment for a Dremel, and use bits (mostly abrasive carbide, not HSS) that can be chucked into a Dremel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221154",
"author": "Joe Pitz",
"timestamp": "2010-11-30T00:45:55",
"content": "A+ for ingenuity. Harbor Freight currently sells drill presses for $69.95. I purchased one on sale for $49.95.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221169",
"author": "Brent",
"timestamp": "2010-11-30T01:03:00",
"content": "You’ll break enough bits to slow you down with a dremel press too. This might actually be better. Funny he’s not complaining about that HSS bit getting dull.Figure on $150-$250 (USD) for a decent drill press with 1/4″ chuck that’s fast enough for fine carbide bits in fiberglass. Remember that even then you’re compromising: look at what old Electro-Mechano iron (found in a quick fact-checking search—it’d be real interesting to know what the real market is for first-quality high speed manual drill presses) still goes for.My personal solution: I use cheap refurbished (Harbor Freight) drill bits in a Dremel with a drill press stand, and send any remotely complicated (think, more than you’d want to hand wire AGAIN) PCB out before I even think about etching and drilling. But I don’t live in New Zealand either.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221185",
"author": "Trollicus",
"timestamp": "2010-11-30T01:33:58",
"content": "A little rule of thumb when drilling(anything)The velocity of the outside of the bit is proportional to the diameter. In other words the smaller the bit the faster you need to spin it. Obviously different materials and bits require different speeds, but given the same material a smaller bit will need a higher RPM. That is why a dremel, which operates at a very high RPM compared to a hand held drill is preferred to this type of setup.I use a dremel model 220 stand. There are some adjustable brass screws on the side that should be tightened to get less “play” I also use a large rubber band(the kind you find wrapped around the base of broccoli) at the top of the press wrapping the power cord end of the drill to the metal cylinder of the stand this prevents any play that will quickly kill bits. I set the drill for as high of an RMP as I can stand(earplugs are a must) and am still on the FIRST BIT! after 6 months of use.(hundreds of holes)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221261",
"author": "becky",
"timestamp": "2010-11-30T03:55:54",
"content": "I use a dremel for this myself. It works wonders.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221266",
"author": "bud",
"timestamp": "2010-11-30T04:03:29",
"content": "dremel tool all the way,drill is way to slow, running at 20,000rpm bits can be reliability fed at 7in/min for well over a hundred holes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221270",
"author": "kyoorius",
"timestamp": "2010-11-30T04:12:39",
"content": "I used to use a Dremel with a tiny drill bit (the one that came with the red plastic hand crank drill sold at Radio Shack). The secret to fast efficient hole drilling for a homebrew PCB was to use a piece of perfboard as a template drill guide (set on top). The holes to be drilled should be premarked with a sharpie.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221326",
"author": "macegr",
"timestamp": "2010-11-30T06:04:04",
"content": "I like this one (http://hackaday.com/2010/03/18/pcb-drill-press-on-a-budget/) and also this one (http://hackaday.com/2008/07/22/home-made-pcb-drill-press/) a lot better. The high RPMs are necessary and that drawer slide above is going to wobble a lot with that big heavy drill hanging off it…that’s a carbide breaker for sure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221360",
"author": "reboots",
"timestamp": "2010-11-30T07:42:50",
"content": "Hackaday featured a proper PCB drill press a while back, manufactured by Proxxon:http://hackaday.com/2009/02/27/tools-proxxon-drill-press-tbm115tbm220/While the press isn’t cheap, Proxxon makes a whole line of high-speed rotary tools which are priced similarly to Dremel’s offerings but have much better construction. I have their smallest tool, the Micromot 50 ($35-45 on Amazon). It’s a 12V, 20,000 RPM drill with several advantages over the Dremels: steel collets instead of aluminum, a machined metal neck for securing to your ghetto press, surprisingly small size, low noise, and virtually no vibration.I was impressed enough to try to build my own press based on the Proxxon, and here’s a pic of the work in progress:http://reboots.g-cipher.net/minidrill.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223383",
"author": "Masta Squidge",
"timestamp": "2010-11-30T19:02:55",
"content": "My grandfather actually has the same things to say about the aluminum collets…He is one of the members of a (the?) product testing group for dremel and has his fingers in many of the design improvements that dremel has been rolling out in the last few years.Just wanted to let some of you know that your complaints about some of the things dremels have are getting to their ears lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223419",
"author": "Rhys",
"timestamp": "2010-11-30T19:17:04",
"content": "@Reboots: Your press looks awesome! As for Proxxon, thanks for the tip. I just checked them out and it looks like I can get them in NZ. (Amazon won’t ship here). When funds permit I’ll be looking to get some kind of decent rotary tool and ether adapt the above press or try to make a really smart one like your yours.Cheers,Rhys",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223906",
"author": "reboots",
"timestamp": "2010-11-30T22:03:18",
"content": "@Masta Squidge, great to know. Dremel has a large market segment and improvements will benefit a lot of people. I used the same Moto-Tool for 20 years before bearing runout became unacceptable, but have heard from many corners that quality had fallen off since then.@Rhys, thanks for the kind words. If I were going to build the press over again I’d just use a precision linear bearing like this:http://www.linearmotion.skf.com/upload/img274-274bc/linear4.jpgThese are very expensive new but occasionally pop up on eBay for $20+. The result would be a simple, compact, high-tolerance press.Having said that, cheap drawer slides can be surprisingly precise. Arranging a pair in a V shape might improve stability in both directions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "232901",
"author": "Whatnot",
"timestamp": "2010-12-02T13:48:33",
"content": "I’ve seen many reviews of the official dremel drillpress attachment and everybody always says it’s loose and awful until you mod it yourself to make it stable, so that’s the reality but I guess it’s not bad since if you have a dremel you are into modding anyway :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "370337",
"author": "Ratnaraj Kanungoe",
"timestamp": "2011-03-30T11:29:22",
"content": "hiyour idea is absolutely ossom!! just tel me ??” chuck u used to hold the 0.8mm bit and the type of material of bits fits for PCB drilling?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.088713
|
||
https://hackaday.com/2010/11/29/diy-oleds/
|
DIY OLEDs
|
Devlin Thyne
|
[
"chemistry hacks",
"LED Hacks"
] |
[
"glowsticks",
"jeri ellsworth",
"led",
"oled"
] |
[
Jeri Ellsworth
] has put together a couple of videos that cover how she made her own organic light emitting diodes, or OLEDs. In the first video, after the break, it discusses the difference between regular, rigid semiconductor LEDs and organic LEDs. The video then goes on to show how to make an OLED as successive layers of materials. Indium tin oxide (ITO) on glass forms a transparent anode. That is then coated with
PEDOT:PSS
, a conductive polymer mix that is used as a hole transport layer. Then a red diamond ruthenium complex is added to create the emissive layer. The cathode layer is a low work function metal, initially, gallium indium eutectic alloy then later other metals were shown to work. The second video, shows how to juice a glowstick and make OLEDs with the liquid. The dye in blue glowsticks,
9,10-Diphenylanthracene
, is an organic semiconductor and will emit light as an electric current is passed through it. The glow stick method seems to have some problems as the ITO coated glass plate is degraded by the glowstick chemicals. It would be interesting to see if using the porous aluminum or similar technique from [Jeri]’s
flexible electroluminescent displays
could be used as an electrode.
[youtube=http://www.youtube.com/watch?v=CAgRF8TibJ0&w=470]
[youtube=http://www.youtube.com/watch?v=U2qGKJLkDyc&w=470]
| 43
| 40
|
[
{
"comment_id": "221047",
"author": "Walter Schreppers",
"timestamp": "2010-11-29T22:51:54",
"content": "Nice experiment and well documented. As for results I was a bit disappointed because the screen just looks dark with and without the power on the oled? Is the light not visible on camera or is the miniscule blue dot visible at 2:56 the oled? Also I was expecting a flashing light (555 timer…).Anyway, keep up the great work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221113",
"author": "Jordan",
"timestamp": "2010-11-29T23:32:58",
"content": "Great links, horrible article.“In the first video, … it discusses…” should be changed (how about “The first video … discusses…”“The video then goes on to show how to make an OLED as successive layers of materials.” How about “…an OLED from successive layers…”“The second video, shows how to juice a glowstick…” the comma and double space should be replaced with just a single space.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2994828",
"author": "C. Andrews",
"timestamp": "2016-04-19T16:17:31",
"content": "Literally unreadable.Oh sorry, I thought we were practicing our hyperbole skills.",
"parent_id": "221113",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "221116",
"author": "Jordan",
"timestamp": "2010-11-29T23:35:55",
"content": "oops, just noticed it was one of the new writers.sorry",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221119",
"author": "j_jwalrus",
"timestamp": "2010-11-29T23:42:23",
"content": "“guys, when your wife or girlfriend complains that you bought her an artificial diamond, just explain to her that cubic zirconium in some instances can have a 6.1 electron volt band gap, which is far superior to diamond.”Jeri, we love you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221123",
"author": "Matt",
"timestamp": "2010-11-29T23:52:36",
"content": "@Jordon – Instead of saying “..horrible article”, maybe word it so you don’t sound like a complete dick. Just a thought",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221125",
"author": "Frollard",
"timestamp": "2010-11-29T23:55:48",
"content": "@walter — you missed the 1kHz speed on that oscillator…it IS flashing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221127",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-29T23:59:45",
"content": "The light from the glow stick experiment is very low and I don’t have a great low light camera.These are all proof of concept and would need a lot of tweaking and better lab procedure to make high output devices.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221128",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-30T00:06:32",
"content": "Many people are very aggressive and negative around here. It’s pretty disappointing.(I know I just feed the trolls and unleashed the haters)Thanks j_jwalrus – Only a few people get my geeky sense of humor.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "221235",
"author": "Caleb Kraft",
"timestamp": "2010-11-30T02:47:57",
"content": "@Jeri,The automatic negativity here can be quite daunting at times. I really don’t understand it.We love to post your work because, not only are you hacking, you usually do a great job explaining it as well.-caleb",
"parent_id": "221128",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "221130",
"author": "zeropointmodule",
"timestamp": "2010-11-30T00:08:20",
"content": "still, a fascinating article Jeri.A thought I did have to get around the problem of low light level is to obtain a cheap cmos camera and cool it down using a peltier stack to reduce the noise.another idea is to use a Gen 2 night vision module, you’d lose colour but at least it shows the glowing nicely.i have a gen 0 non intensified tube here which works well for converting IR to visible but no amplification.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221131",
"author": "Erik Johnson",
"timestamp": "2010-11-30T00:10:33",
"content": "“…try not to touch these chemicals…”proceeds to blatantly pour the contents all over the desk/hands and scoop up with hands",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221132",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-30T00:11:33",
"content": "zeropointmodule Cooling a CCD sounds like a fun project. I have a few peltier modules.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221189",
"author": "zool",
"timestamp": "2010-11-30T01:39:25",
"content": "@jeri, haters gonna hate",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221197",
"author": "Greycode",
"timestamp": "2010-11-30T01:53:19",
"content": "Man, Jeri just whupped me, calling us a bunch of player haters.Jeri, I can assure you, there are more fans of your work, than there are haters, the haters just get seen more. The fans are just nodding their heads and holding a lighter above.You have more links about you here than I think anyone else. You are loved, and we can’t reach the ones who are trolling so that we can slap them.Would you happen to be working on cloning anytime soon?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221220",
"author": "Harvie",
"timestamp": "2010-11-30T02:18:01",
"content": "just 111? i think you can get at least 555 :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221247",
"author": "JEDITALIAN",
"timestamp": "2010-11-30T03:08:53",
"content": "after watching one of the recommended videos that popped up after the glowstick video(Samsung’s flexible AMOLED) I decided to try to make my Samsung’s AMOLED display something (like u use to do with a calculator’s LCD) Failing, i decided to try to take the metal frame off of the AMOLED. my Samsung AMOLED was not the flexible type. goodbye most vibrant display i have ever seen. Rest in Pieces.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221302",
"author": "gottabethatguy",
"timestamp": "2010-11-30T05:29:35",
"content": "Not a comment relating to the actual hack or article.The spelling, grammar, and overall level of writing on this site are atrocious. What surprises me is that even though the authors are constantly made aware of their countless errors in the comments, little seems to be done about it.Hackaday is in desperate need of an editor, someone with an English degree or at least a solid grasp on the written language.This article and the two above it are rife with errors. The worst part is most of these errors are easily caught with a simple read through performed by someone unfamiliar with the text as the original writer may see what they thought they typed and not what was actually typed.If hackaday wishes to be taken as a serious media entity, and I assume you do as this is a business after all, cleaning up simple spelling and grammar errors would go a long way in portraying that image.I personally enjoy the site as a whole and read it nearly daily, the topics as of late have also greatly improved.Please, for the sake of your readership that DOES care about spelling, punctuation, grammar, and efficient written communication, put some serious thought into taking your writing to the next level.I’m not going to point out the errors as they are quite obvious and this post was not intended to demean or make fun of anyone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221305",
"author": "Devin",
"timestamp": "2010-11-30T05:32:10",
"content": "Who cares about spelling and grammar, so long as you can understand the point of the article? Language has a purpose other than looking pretty, you know.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1070946",
"author": "stateofpreparedness",
"timestamp": "2013-10-08T04:28:26",
"content": "I used to think as you do. I speak or write to convey thoughts, and if the recipient can understand me, then why bother to learn or use any more of the language?I now see how important it is. You can convey information at a higher density with precise language. Instead of placing a small cognitive handicap on each reader or listener, they can more directly understand your intended message. Precise language shows that you respect your audience.On a place like the comments section of a website, you can only be judged by the content of your message, and the way you say it. If I feel my content is important enough to share, I don’t ever want to have it dismissed on the base of poor grammar.",
"parent_id": "221305",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "221311",
"author": "lolrus",
"timestamp": "2010-11-30T05:40:27",
"content": "Maybe we should change the website name to grammarlessonaday.com to appeal to the grammar Nazis?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221374",
"author": "bzroom",
"timestamp": "2010-11-30T08:08:32",
"content": "if you can’t take the time to write correctly, how can you expect someone to take you seriously?it’s something we all learn when we’re young. it usually takes a hard burn or too.for example: “this new msdn stuff is retarted.” reply: “yea, like your spelling.”Sweet LED. could hardly see it in the video..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221375",
"author": "bzroom",
"timestamp": "2010-11-30T08:09:12",
"content": "self pwn",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221415",
"author": "humble reader",
"timestamp": "2010-11-30T10:28:30",
"content": "Feel the love Jeri. Just keep on doing what you do.Seems some are on serotonin withdrawl after theT’day turkey binge and need another fix.It’s easy to dump on the grammar if you didn’t dothe hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221440",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-30T11:16:47",
"content": "Thanks humble reader.The first link on google if you do a search for “Did you bring a hack?” is a picture of my lab cameras.http://www.flickr.com/photos/textfiles/3462239472/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221444",
"author": "ferdi",
"timestamp": "2010-11-30T11:31:38",
"content": "nicely documente i no now a litelbit more about oled,s i think its cool that a smart girl make this information movies it is usly a man that make this thare must be more smart prity girls on hack a day",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221606",
"author": "grenadier",
"timestamp": "2010-11-30T12:34:11",
"content": "Bitch bitch bitch it’s all you guys do. Get in the kitchen and make me a sandwich.Nice article Jeri, too bad these chemicals are pretty expensive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222367",
"author": "nes",
"timestamp": "2010-11-30T15:04:28",
"content": "Nice presentation and explanation of the theory. Does make me wish I had paid more attention in microelectronics class. One of the researchers in my old dept supposedly invented green Gan LEDs back in the day but the lab we was working for couldn’t see the commercial potential so didn’t pursue it.Is that a still-boxed DTV on the shelf next to the game-and-watches and the NES controllers? Hard to tell from the video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222695",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-30T16:43:26",
"content": "NES – It is a boxed c64 DTV v1, V2 and Hummer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223043",
"author": "Zeno Arrow",
"timestamp": "2010-11-30T17:28:43",
"content": "@Caleb Kraft“The automatic negativity here can be quite daunting at times. I really don’t understand it.”It’s fairly easy to explain. You’ve got a group of wannabe hackers who visit this site who would rather boost their ego by criticising other people’s projects than do their own projects. The sort of people who think they’re l33t just because they run Linux, and haven’t done anything more taxing with hardware than wiring a plug.I used to pretend to be a hacker when I was in school (Windows security at my school was a joke, so it was hardly taxing), I grew out of this pretense. Now all I want to do is learn. I’m not saying that these two things are necessarily diametrically opposed, but I do think you’ll find most true hackers are fairly open minded, use that thought to tune your b*llshit meter next time you’re reading some of the negative HaD comments.@Jeri EllsworthNice job. Looking forward to seeing what you come up with next.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223398",
"author": "JEDITALIAN",
"timestamp": "2010-11-30T19:09:14",
"content": "@jEDITALIAN: You, Sir, are stupid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223760",
"author": "Greycode",
"timestamp": "2010-11-30T21:00:16",
"content": "@Jeditalian, yes, why did you go after your probably quite expensive television? I am not going to go as far as to call you stupid, but I am questioning your motives.@The grammar Nazis, I am a fellow grammar Nazi, and this site is a site that you have to take on it’s technical merits. If you find that the merits are not up to your standards, you move on, if they are, you just have to take the mistakes as they are, mistakes. They are not trying to sell you anything. What do you want for nothing? Rubber biscuits? You are going to have to do what I do, and wince, and then go on to the next sentence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "224736",
"author": "gottabethatguy",
"timestamp": "2010-12-01T02:43:15",
"content": "Ahhh, but they are selling something as any other media outlet does. Ad space.I don’t understand why the idea of raising the level of the writing in the articles is met with such hostility.All it would take in most cases is a simple read through before posting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "224791",
"author": "Fuzzy Matt",
"timestamp": "2010-12-01T02:56:20",
"content": "IDK maybe it is like when I showed my cousin Jeri’s earlier stuff. I was thinking, “Wow! that is so cool. I wish I had friends like her who actually hack instead of sit in the basement and play WOW and just talk about hacking when their fingers get tired.” and my cousin who has an engineering degree reacted with “that’s scary” IMHO he felt threatened because he spent all that time in college and here is a young woman who can do more with an easy bake oven and a soldering iron than he can with an entire lab. Just a thought. UR an inspiration.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "227255",
"author": "Greycode",
"timestamp": "2010-12-01T15:52:25",
"content": "@ Matt, personally I think Jeri has done more with an easy bake oven OR a soldering iron than many others have done period.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "228516",
"author": "alan turing's dog",
"timestamp": "2010-12-01T20:47:38",
"content": "Sadly, I was expelled from the American equivalent of the Grammar Nazis (The Conjugation Corps) for refusing to let go of the word “ain’t”.It was all great fun, and since we only had to know how to conjugate (…), how to keep our tenses straight and be able to master singular vs. plural distinctions and counting vs. non-counting nouns.Since we were Americans, we didn’t have to bother with spelling and possessives, and no one cared at all about using apostrophes or even most points of punctuation or abbreviation properly.It all went to hell when we decided to allow an ancient art of rhetoric teacher take over as CIC, and since she felt herself to be the one true arbiter of English as it ought to be written, she made quite a few waves.The joke was on them – shortly after I was expelled, she changed the Conjugation Corps’ motto from “Close enough for the likes of you” to the ominous sounding “Arbiter macht frei” and tried to purge all the words without latin roots or german tails from our training manuals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "228581",
"author": "alan turing's dog",
"timestamp": "2010-12-01T21:01:23",
"content": "@caleb and Zeno ArrowI’m against hatin’ but the people who emerge from beneath the depths of criticism are the gems – those who wither probably lack the ability to overcome, which is bad for researchers and hackers no matter how you slice it.Initially, I wasn’t impressed by JE, but she’s in it for the long haul and doing actual empirical science to kill time. Good on her.Wish she was more interested in biology, because that’s where the hacker action is now.We’ve lost a generation of really bright and somewhat-out-there biochemists in the last decade (all by unusual circumstance, oddly enough), and someone needs to take up the slack. A lot of interesting research topics seem to have vanished from the literature into thin air, and none of them really required a phd or a big budget lab to explore.We don’t need more hackers – there are lots of hackers in the world. We really need more mad scientists. Mad scientists THRIVE in criticism.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "230339",
"author": "jethomson",
"timestamp": "2010-12-02T03:17:55",
"content": "“One hundred, 101, 110, 111,” counts Jerri as she brushes her hair. Methinks there be a binary joke in there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "233356",
"author": "alexandre guerra",
"timestamp": "2010-12-02T15:22:19",
"content": "Too bad my joke wasnt good. it was taken out….Very cool stuff, specially the carefullness with the glowing liquid,,,, :)Loved the video. Hope people would get out of letargic state and do somethingKeep up the good work :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "233714",
"author": "Zeno Arrow",
"timestamp": "2010-12-02T16:41:51",
"content": "@alan turing’s dog“I’m against hatin’ but the people who emerge from beneath the depths of criticism are the gems – those who wither probably lack the ability to overcome, which is bad for researchers and hackers no matter how you slice it.”Yes, the truly great can rise above the negativity, but what about those on their way to greatness. How many potentially great minds have been lost due to unwarranted criticism being repeatedly thrown in their face.Think back to your school days and how much potential you had, which could have happened if you were lucky to have been given the right direction. Some people are their own guides, but we all benefit from encouragement and ‘constructive’ criticism. Constructive being the operative word, which is not what haters provide.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238642",
"author": "diyer",
"timestamp": "2010-12-03T09:55:27",
"content": "will the gel in the glow sticks stain carpet lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283704",
"author": "zeropointmodule",
"timestamp": "2010-12-13T23:27:28",
"content": "haha @diyerWonder if its possible to make the diphenylanthracene OLED any brighter?it occurs to me that most of the losses are due to it being in a liquid phase, so washing it with a solvent to obtain pure DPA and then spin coating onto a substrate and GENTLY drying (OLEDs hate heat like you wouldn’t believe) then coating on an appropriate back coating should work.a little tip, dry it out in a vacuum chamber, applying the back coating and then encapsulating while under inert dry nitrogen should ensure a reliable OLED display.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "466140",
"author": "bothersaidpooh",
"timestamp": "2011-09-28T08:03:02",
"content": "Idea *2. Another product such as Flash One for All Crisp Lemons fluoresces brightly under UV light so may or may not be suitable.Only one way to find out :-)Also to make the ITO last longer try putting a thin carbon coating on it as seen in the DIY TiO2 solar cell demonstration videos.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.470746
|
||
https://hackaday.com/2010/11/29/climbing-bike-storage-thwarts-thieves/
|
Climbing Bike Storage Thwarts Thieves?
|
Mike Szczys
|
[
"Transportation Hacks"
] |
[
"bike",
"carrier",
"climb",
"lock",
"pole"
] |
If you’ve got an expensive bike and don’t mind carrying around a whole bunch of extra weight in your courier bag you’ll like this concept. A design team
built a pole-climbing bike rack
in about 14 days. The video after the break shows the prototyping process as well as the finished “lock” in use. It’s a commercial for the company that employs the designers, but this is one kind of advert we don’t mind watching.
Square channel makes up the body of the device, with a set of Rollerblade wheels which grab a light pole and use three 12V gear motors for climbing. The controller is a wireless fob similar to those used for keyless entry on cars. In the video you can hear the cliché sound of a car alarm being set once the carrier reaches its finished height. Nice.
[Thanks JonnieCache]
| 51
| 48
|
[
{
"comment_id": "221007",
"author": "Mouseclone",
"timestamp": "2010-11-29T21:34:28",
"content": "looks like a town will need more light poles soon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221008",
"author": "ReKlipz",
"timestamp": "2010-11-29T21:35:36",
"content": "What about where the light poles taper as they rise? Perhaps the square tubing doesn’t impede while the device has the tendency to tilt to the heavy side, thus allowing the wheels to still grip and climb.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221011",
"author": "bogdan",
"timestamp": "2010-11-29T21:43:29",
"content": "Simply brilliant!It has it’s limitations, but it’s brilliant!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221013",
"author": "h3po",
"timestamp": "2010-11-29T21:44:06",
"content": "the video is great, but conrad sucks. hackers in germany call it “electro pharmacy” – the smaller the part you need, the more overpriced they sell it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221014",
"author": "Evoc",
"timestamp": "2010-11-29T21:45:21",
"content": "LoL, any real thief would get a laptop and do the same thing and just drive away what a crap idea,well, ye you could use encrypted key transmission but it is exactly there where the flaw comes into the game.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221018",
"author": "CPM M4",
"timestamp": "2010-11-29T21:50:34",
"content": "Brilliant = complete impracticality, I suppose.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221026",
"author": "Captain Obvious",
"timestamp": "2010-11-29T22:01:57",
"content": "Great.. until the second guy uses the same pole as you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221032",
"author": "Bryan",
"timestamp": "2010-11-29T22:14:05",
"content": "“Great.. until the second guy uses the same pole as you.”Hey sorry i’m late for work, some guy parked underneath me and i had to wait for him to finish his latte before i could get my bike down.Of course you could build one with extra torque so it pushes all the bikes below it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221045",
"author": "M4CGYV3R",
"timestamp": "2010-11-29T22:48:32",
"content": "Didn’t I see this on HAD in the last week or two? I can never remember where all these passed-around dupe articles have been.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221052",
"author": "Eirinn",
"timestamp": "2010-11-29T23:02:27",
"content": "@Evoc Any real thief does not carry around a laptop and certainly doesn’t steal bicycles.I’d be afraid of the cops taking down the bike though :<",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221055",
"author": "anon",
"timestamp": "2010-11-29T23:06:03",
"content": "@Eirinn that’s why I usually leave a laptop close to my bike to distract the thieves from the bike",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221090",
"author": "vonskippy",
"timestamp": "2010-11-29T23:16:03",
"content": "Good thing no one would think of inventing a stick to lift the bike off the carrier while it’s up the pole.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221111",
"author": "Aviator747",
"timestamp": "2010-11-29T23:30:54",
"content": "A stick or someone building a universal remote of their own. A tv b gone idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221112",
"author": "Nomad",
"timestamp": "2010-11-29T23:32:11",
"content": "A nice ad for a crappy shop.Walked in one of those once…and asked two different guys for the same thing…and got two different answers => bull-feces",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221117",
"author": "ngart",
"timestamp": "2010-11-29T23:37:02",
"content": "ZOMG IMPRACTICAL ZOMG.ok nerds, this is clearly more for fun than a practical idea, stop fogging up your glasses and calm down.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221120",
"author": "tantris",
"timestamp": "2010-11-29T23:43:31",
"content": "well, I could see cities offering “premium” parking spots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221134",
"author": "pff",
"timestamp": "2010-11-30T00:13:19",
"content": "..light pole? seriously?In my country we call them lamp posts.If you’ve got an expensive bike why not dangle it at a height from a lamp post on a busy street using some hobby motors and rollerblade wheels.hmmm not sure about this one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221142",
"author": "sowhat",
"timestamp": "2010-11-30T00:22:37",
"content": "okay to all of you who think this is impractical: You obviously have never been to Bremen. Me and my 8 friends lost a total of 18 bikes to that city.Since these guys speak a nothern dialect of German it’s save to say the come from Bremen. :DThat’s about the only place where this makes sense.Also nice in the vid he tests the remote saying:“Hoch”, “Runter”, “Disco” (“Up, down, disco”) and the leds flash.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221145",
"author": "iToast",
"timestamp": "2010-11-30T00:33:35",
"content": "WTF -_- I SUBMITED THIS -.- mehi wonder how weather proof it is :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221206",
"author": "Greycode",
"timestamp": "2010-11-30T02:00:57",
"content": "I don’t know what I liked more, the concept, or that guy’s mutton chops. But rock on, rock on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221210",
"author": "spud",
"timestamp": "2010-11-30T02:07:08",
"content": "When I see the guy operating a metal file with obviously no clue, it makes me lost all faith in their design shop.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "890693",
"author": "soopergooman",
"timestamp": "2012-11-24T20:50:39",
"content": "when I see someone insult another but fail in their spelling and grammar its makes me “lose” all faith in their comment.",
"parent_id": "221210",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "221224",
"author": "crizr",
"timestamp": "2010-11-30T02:29:43",
"content": "@vonskippy & others: you could also simply use a padlocked cable / chain through the frame of the bike and around the pole… this pole-climbing rack certainly would make it a lot more difficult for someone the saw the cable or pick the lock to get your bike or steal the wheels or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221236",
"author": "d3c4f",
"timestamp": "2010-11-30T02:48:05",
"content": "I wonder what the legal implications are? Also, I can’t imagine the city utility workers would be happy.Interesting concept though, and a fun idea. Keep on hacking!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221252",
"author": "JEDITALIAN",
"timestamp": "2010-11-30T03:30:53",
"content": "lol a tv-b-gone that just makes them all detach, so they come crashing down instead of rolling/sliding.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221327",
"author": "pRoFlT",
"timestamp": "2010-11-30T06:04:53",
"content": "That bike is mine! long pool with hook to yank it down with. or grapling hook ;)What happens if the batteries die, does the bike fall? How does it stay in one place once its up there?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221364",
"author": "Max",
"timestamp": "2010-11-30T07:56:42",
"content": "@pRoFlT: I’m just guessing, but no small motor has that kind of torque by itself. Therefore, I would bet it’s a worm gear. Which by the way has the nice property of irreversibility (usually), ie. it locks up where it is when you stop driving it. But hey, I could be wrong.And sure, you should have an acrobat on retainer (or at least the Super Marios), in case your battery goes flat (or the electronics get wet) while the bike is up there.Oh, and a lawyer, just in case the bike comes crashing down on somebody’s nearby parked car / cat / dog / offspring / head etc. Otherwise, great laugh, sure.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "221385",
"author": "Proflt",
"timestamp": "2010-11-30T08:44:50",
"content": "@max yah but did you see how the bike is held? Looks like they just have it resting there on a bracket. I did not see a clamp to secure the bike to the system.Now a tenacle system would be real difficult to build for that. And would need a bigger backpack.When I first saw this I thought back to an idea I had for poll cleaners. We have several flag polls at work and I’ve seen them be hand cleaned. I wanted to make a robot that could climb to the top and clean the poll. Like a romba for flag polls :)anyways a bike secured this way is no more safe then with a chain. If someone wants it the will figure out how to get it down from thre.",
"parent_id": "221364",
"depth": 2,
"replies": [
{
"comment_id": "890384",
"author": "Cold_Turkey",
"timestamp": "2012-11-24T14:33:41",
"content": "Surely you would just put a lock around the pole too? no?",
"parent_id": "221385",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "221376",
"author": "Max",
"timestamp": "2010-11-30T08:10:51",
"content": "“Great.. until the second guy uses the same pole as you.”@Captain Obvious: Elementary, dear Watson. They just need to make a Mk.II, that can pass itself on the way up/down. Perhaps with two of these rings, connected by a worm/arm/tentacle/thingy that can swap them… Hmmm, this is starting to have some serious mad science potential…!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221396",
"author": "Pogyhauler",
"timestamp": "2010-11-30T09:21:26",
"content": "This is something thinkable only in the land of the 700cc sedan.A nudge from a RAM 3500 would have that bike to th go the ground and in bolt cutter range, in about 8 seconds just lettin it idle. quiet, no fuss, and gone in 60 seconds.I imagine ‘d be even easier with a hotwired Hanomag",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221418",
"author": "jim",
"timestamp": "2010-11-30T10:34:52",
"content": "ITT: lots of guys take a humorous proof of concept way too seriously.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221450",
"author": "ferdi",
"timestamp": "2010-11-30T11:40:40",
"content": "what if the power faill and your bike is on the top how you get it downthis is not leagal i think the streatlicht are proporty off the sitybut i love the consept",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221598",
"author": "jim",
"timestamp": "2010-11-30T12:33:33",
"content": "you would call a friend with a ladderobviously if this was for everyday use, a lot of time and money would be spent on lightening it and making it failsafe. one motor, carbon fibre, high density batteries and a carrier or permanent attachment to the bike frame might make it more viable",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221753",
"author": "Grovenstien",
"timestamp": "2010-11-30T13:13:57",
"content": "Fun but flawed in so many ways. I would just shimmy up the pole and take the bike.PS all bike thieves should crawl under a rock and die!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222203",
"author": "Flug",
"timestamp": "2010-11-30T14:16:22",
"content": "What happens when the world rotates upside down during the night and the bike just falls off.. Completly flawed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222404",
"author": "davo1111",
"timestamp": "2010-11-30T15:17:44",
"content": "lol this is awesome. the double beep at the end makes it 1000 times cooler",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222571",
"author": "THeOReosv",
"timestamp": "2010-11-30T16:07:24",
"content": "GREAT, I saw the germany add in german tv few days ago bud didn’t that there’s an instructable for it! :D netver the less i would never ever buy anything there, their prices are muuuuchhhh to overrated!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222646",
"author": "Hacksaw",
"timestamp": "2010-11-30T16:32:13",
"content": "A Lot has been said about it’s feasibility but very little about the legality. Where I live you can’t even tape (yes tape or nail or staple) a yard sale sign to any pole owned by the city or a utility operating under permit by the city. Now I guess a person could start a company installing poles for this purpose but then you may as well build the lift into the poles at least then you could put a bike on each side and not have to carry anything with you just your padlock (to lock the bike to the lift) and your (leased) encrypted key fob remote control thingy to raise it and lower it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222696",
"author": "Ren",
"timestamp": "2010-11-30T16:43:36",
"content": "They should have the battery pack recharge whilepedaling the bike.Apparently it can climb a pole covered with lots of rotting posts (i.e. sales, concerts, political flyers)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223129",
"author": "Chris",
"timestamp": "2010-11-30T17:53:12",
"content": "Here in canada we have a device called a hockey stick that will flip that bike right off of there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223250",
"author": "THeOReosv",
"timestamp": "2010-11-30T18:28:36",
"content": "Here in germany we have a device called a hockey stick that will flip the guy who tries to steal the bike.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223903",
"author": "PocketBrain",
"timestamp": "2010-11-30T22:01:11",
"content": "Make the unit regenerative and get some power back when you lower your bike; reduce the size of the battery pack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "226144",
"author": "Louis II",
"timestamp": "2010-12-01T09:29:25",
"content": "@ Chris & his hockey stick:Indeed, you put a smile on my face :-)Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "227339",
"author": "Lucky",
"timestamp": "2010-12-01T16:21:12",
"content": "How long before someone hacks one to steal theones locked by others?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "234966",
"author": "munit",
"timestamp": "2010-12-02T21:18:53",
"content": "If you’ll build one of this, you have to pay at least 1060 bucks, without the wheels and small parts :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238573",
"author": "∗*∗SIKDIDIT∗*∗",
"timestamp": "2010-12-03T09:39:46",
"content": "Wow 1060..AmazingMy bike only cost me $50.00.;)(cuz it was stolen)∗*∗SIKDIDIT∗*∗",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "244562",
"author": "bogdan",
"timestamp": "2010-12-04T11:20:45",
"content": "Regenerative would probably not give you back any useful energy..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "256912",
"author": "Tanja",
"timestamp": "2010-12-06T10:24:39",
"content": "The construction manual is now online:http://www.conrad.de/medias/sys_master/cms/promotional_content/modelling_hobbies/8540247957303392.pdfNice to read that the lock’s popular even outside Germany :) You can build it, but I want to add that there’s no plan to sell it, it really would be too insecure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "287461",
"author": "ridden",
"timestamp": "2010-12-21T17:08:24",
"content": "Brilliant! The main flaws (dead battery, no locking clasp) are easily fixed. The rest of the arguments apply equally to any physical security technology. Except you have to be a whole lot more obvious about your attempt with this one. A bloke on a pole is pretty conspicuous.Most of the time, you just have to rebalance the equation of risk/effort vs. reward for potential thieves. I think this accomplishes that goal quite nicely.This would be great for attending outdoor concerts. Put your bike up a pole, easily keep an eye on it from elsewhere in the park!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "890694",
"author": "soopergooman",
"timestamp": "2012-11-24T20:51:17",
"content": "Nice, I so could use one of these. Do you take orders?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.282037
|
||
https://hackaday.com/2010/11/29/warm-tube-clock/
|
Warm Tube Clock
|
Mike Szczys
|
[
"clock hacks"
] |
[
"atmega328",
"led",
"nixie",
"rgb",
"tlc59401",
"tube"
] |
The
Warm Tube Clock
is the new kid on the block of Nixie Tube clocks. It takes inspiration from, and uses the same voltage driver circuit as
the Ice Tube Clock
. But this one uses four tubes instead of that hard-to-find single tube. It has a few other tricks up its sleeve. The shield that hosts the tubes has been designed for two different types. It also hosts an RGB LED for each tube, which adds the green glow seen above, and has a couple of small neon indicator bulbs which serve as the colon between hours and minutes.
The driver board centers around an ATmega328 running about three thousand lines of code. The firmware offers a lot of options including sound feedback, and a setting for every clock, calendar, alarm, and LED color toggle imaginable. See for yourself as the settings video, embedded after the break, walks you through each stage of the menu. We can’t help but think you need an instruction manual to set this thing up.
[youtube=http://www.youtube.com/watch?v=szHUmyoqAvA&w=470]
[Thanks Mark]
| 19
| 19
|
[
{
"comment_id": "220990",
"author": "Marvin",
"timestamp": "2010-11-29T21:01:21",
"content": "Nice idea with the RGB LEDs…Good “UI design” :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220992",
"author": "Bill",
"timestamp": "2010-11-29T21:13:47",
"content": "I will definitely be getting some of these PCBs made. Anyone want to split the cost with me? The house I use is $40 for 10 boards",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221039",
"author": "Friction57",
"timestamp": "2010-11-29T22:34:35",
"content": "Hmm… How about something like this that acts as a physical Gmail or Email notifier?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221050",
"author": "tedk",
"timestamp": "2010-11-29T23:00:47",
"content": "@bill email me, id def like to get one of the pcbs made up to clone this project.nutz4hs(@)yahoo(.)com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221103",
"author": "Bill",
"timestamp": "2010-11-29T23:20:06",
"content": "Will do, and anyone else, I’ll save you from posting your email address here. Just shoot me an email at clockpcb(at)billporter(.)infoSince this is really two boards, it will be $80 for 10 ‘sets’ of PCBs. Or $8 per person if we get 10 people in on the pool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221133",
"author": "Spork",
"timestamp": "2010-11-30T00:12:37",
"content": "@Author of projectYou should take at least one picture without flash, the LED’s look like a cheap addition without some proper photographs.Otherwise a cool project. I use the IV-18 VFD tubes, don’t think they’re too hard to find…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221183",
"author": "Paul Schroeder",
"timestamp": "2010-11-30T01:29:43",
"content": "Do you guys know of much current such a clock would draw?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221234",
"author": "Bill Porter",
"timestamp": "2010-11-30T02:47:37",
"content": "@PaulIt helps to read the website.“Clock works at voltages from 7.5V to about 14V and consumes around 200mA. “",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221285",
"author": "Tom",
"timestamp": "2010-11-30T04:46:58",
"content": "Very cool! I have one Nixie tube clock that I bought as a kit and built and I love it. I like the additional features in this clock (alarm) and would definitely be interested in one. But the PCB’s definitely need to have some sort of mounting holes/standoffs on them. I don’t see how this particular board can be mounted in anything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221345",
"author": "Edward",
"timestamp": "2010-11-30T06:58:40",
"content": "Want kit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221370",
"author": "elektrophreak",
"timestamp": "2010-11-30T08:05:49",
"content": "@Spork: hey, there is a picture without LEDs:http://bit.ly/ec1ACzand many more pictures.I am glad you guys like the clock :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "222305",
"author": "Bill Porter",
"timestamp": "2010-11-30T14:48:03",
"content": "@elektrophreak,Love it, saves me from having to design my own. Though I would have liked to see seconds as well.@TomI agree, I’ll try to add mounting holes.Don’t forget to email me guys if you want to get in on a group order of the PCBs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223010",
"author": "elektrophreak",
"timestamp": "2010-11-30T17:14:14",
"content": "if mounted in an acrylic box, one hole is enough – the one through 7805 regulator, with plastic standoffs.there are some PCBs available – check the project page if you are in a hurry to build one :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223027",
"author": "Bill",
"timestamp": "2010-11-30T17:19:49",
"content": "What? I didn’t see that on the project page.Ahhh, you’ve added a update to it. I’ll copypasta it hear as well.“UPDATE 2: I have received a few e-mails regarding the KIT version of this clock. In order to prepare all that, some investment is expected from me. To give that a boost and to help all of you who want to build a clock right now, I have some leftover PCBs and you can purchase all three for the entire project (main board + IN-16 shield + IN-8 shield) from me directly. If you are interested in PCBs, just send an e-mail to: kit at elektronika.ba with subject: “warmtube pcb” or “warmtube kit” if you think you will ever be interested in a KIT version.”What is the price your asking for the 3 PCBs?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "224622",
"author": "daniel Mackey",
"timestamp": "2010-12-01T02:31:09",
"content": "Hard to find IV-18? eBay has a bunch, link below if anyone wants to buy any.http://shop.ebay.com/?_from=R40&_trksid=p3984.m570.l1313&_nkw=IV-18+Tube&_sacat=See-All-Categories",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "235647",
"author": "Bonz099",
"timestamp": "2010-12-02T23:05:33",
"content": "Anyone know where I can find documentation of firmware? Ide like to build about 6 of these and hand them out as gifts with a “User Manual” of some sort. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238390",
"author": "elektrophreak",
"timestamp": "2010-12-03T08:45:07",
"content": "You can download everything on the project page.I am currently making a build (soldering) instructions with pictures that will be used as a “users manual” during assembly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "306526",
"author": "R Stanley",
"timestamp": "2011-01-16T21:13:07",
"content": "Great design only problem it is a 24 hour format. Do you intend to do a 12 hour version or option for us bloaks in the U.S.? I think one of the colons could be a PM indicator and the code would have to be modified slightly. I would be willing to help monetarily for the information if necessary. Thanks….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2621469",
"author": "Igor",
"timestamp": "2015-06-25T03:49:37",
"content": "Hi! An interesting project. I need help from the author. I made this scheme,V1, but not everything works. Leds are flashing green lamp always shows 44: XX (xx is all light instead of numbers), then changed to XX: 1, and nothing changes when you press the button. Maybe there’s another firmware? Give me please.Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,327.880335
|
||
https://hackaday.com/2010/11/29/chumby-webserver-using-upgraded-internal-storage/
|
Chumby Webserver Using Upgraded Internal Storage
|
Mike Szczys
|
[
"Linux Hacks"
] |
[
"chumby",
"lighttpd",
"lighty",
"sd",
"usb",
"web server"
] |
The Chumby One has an internal SD card offering a fair amount of storage. [Kenneth Finnegan’s] came with a 1 GB card that had about 500 MB left over which he filled with a collection of MP3s. But he wanted to do more and so installed a pre-compiled version of lighttpd to act as a web server. The problem is that this binary requires a thumb drive to be plugged in because it maps the storage directory to the mounted USB folder. He wasn’t happy with that so he
upgraded the internal SD card and rolled his own webserver
to run from the internal SD card.
The upgrade involved going from a 1 GB to an 8 GB microSD card. In order to run the webserver internally he needed to recompile lighttpd to use a different root directory. This meant setting up an ARM cross-compiler and eventually finding a new place for the start up script. The location change for the ‘lighty’ directory leaves us wondering if a symlink couldn’t have solve the problem without recompilation. But we don’t have the hardware on hand to try this out ourselves.
But if you want to give it a shot, check out [Bunnie’s]
post about Chumby-based hardware
. Looks like you can head out to the big-box store and have one in hand without shelling out too many clams.
| 12
| 12
|
[
{
"comment_id": "220981",
"author": "charliefreck",
"timestamp": "2010-11-29T20:24:46",
"content": "good to see some chumby love. the chumby hacking scene seems all but dead as of late. I did something similar back when i got mine. combined the webserver with a python bittorrent client and some cgi whatnot so i could upload torrent files from a slow connection at work, and have them downloaded and ready to watch when i got home.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220991",
"author": "JeremyC",
"timestamp": "2010-11-29T21:07:01",
"content": "That’s a pretty sweet little alarm clock, but not sure I’d pay $100 for one. (yes, I know it’s more than an alarm clock, but that’s what I would probably use it for)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221004",
"author": "DarkFader",
"timestamp": "2010-11-29T21:22:32",
"content": "What’s a good http server for 8 bit MCUs? (oh.. and a filesystem)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221009",
"author": "macw",
"timestamp": "2010-11-29T21:40:25",
"content": "@JeremyC I’m sure a lot of people said “that there sure is an expensive typewriter, cause that’s all I’d ever use it for” when the first PC word processing systems came out, too. What’s the point of your comment?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221030",
"author": "JeremyC",
"timestamp": "2010-11-29T22:11:11",
"content": "@macw – I just don’t see it as a successfull product at that price point. Just my opinion. Maybe someday i.e. the Newton wasn’t ready, but the Ipad certainly was.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221043",
"author": "shou4577",
"timestamp": "2010-11-29T22:41:06",
"content": "@JeremyC – As a Chumby owner, it has some nice stuff to bring to the table. Ours is featured as a part of our stereo for its Pandora Radio access. For that alone, I think it’s worth the price.I agree that it is a pretty useless alarm clock, but it has some other neat features. We also use it to check the weather in the morning, and it has a neat option to display pictures from web albums, so it works as a digital picture frame too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221114",
"author": "Justin",
"timestamp": "2010-11-29T23:33:22",
"content": "I kind of love mine as an alarm clock. I have my general alarm and then pandora pick some getting up and dressed music. Weekends it plays NPR shows. The night mode shows me quotes from a rss feed and the AM it shows weather and other info. Human Clock and Human Calendar make me smile a little bit when I check the time.It is slightly on the expensive side, I want to put it to better use and have it host COUCHdb and some home automation magic webpages to get better use of it. I expect that some day soon they will be in the $50 range and then shortly after that $20 and then $3.But for $100 it makes me smile because it is about the same spec as my first web server back in the 90’s and $100 is nothing compared to the douchy vanity brand name watches.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221136",
"author": "MS3FGX",
"timestamp": "2010-11-30T00:16:10",
"content": "He could have just created a symlink between /mnt/usb/lighty and /mnt/storage/lighty, but I am guessing he was worried about the effects that would have later on if he wanted to mount a USB device on /mnt/usb. You could make the symlink in the directory as long as there was no device mounted on it, but as soon as you mounted a flash drive, your webserver would stop working.The mountpoint for USB devices could have been changed, but at that point you are starting to look at a rather inelegant solution. Better to take the time and do it the right way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221144",
"author": "JeremyC",
"timestamp": "2010-11-30T00:32:12",
"content": "@Justin – don’t get me wrong, they seem pretty sweet and I kind of want one, but I think like $50 is my price point. Hadn’t thought of using it as part of a stereo, not a bad idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221211",
"author": "qwerty",
"timestamp": "2010-11-30T02:08:05",
"content": "Here’s one more US shop (Bestbuy, linked at the article page) refusing to ship outside the US. It’s the fourth in the last two weeks, darnit!Last time I was attempting to order a tube audio amplifier, you know, that 24th century alien technology that must remain confined over there or it would give immense technical advantages to us evil eurasians.And people still wonder why so many of us buy stuff in China…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "225840",
"author": "Kenneth Finnegan",
"timestamp": "2010-12-01T08:02:48",
"content": "MS3FGX half called it. /mnt/usb is a symlink to inserted flash drives, so inserting a drive will kill the server. Additionally, /mnt/ is a tmpfs tree, so any kind of symlink would have to use the same insertion point (/psp/rfs1/) anyways, but only to link some subset of /mnt/storage/ to /mnt/usb/. Considering that setting up the ARM9 toolchain took all of 5 minutes with awk, doing the job right just seemed easier (counting the frustration in a month when some weird issue crops up, breaking my kludgey script).And I entirely agree that the Chumby seems over-priced. It hurt to spend $120 on an alarm clock. 4 months later, I do not regret my purchase. Having Pandora available all the time is much more valuable than I expected it to be…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "225846",
"author": "Kenneth Finnegan",
"timestamp": "2010-12-01T08:04:19",
"content": "And besides, with all the traffic my Chumby handled this weekend, it’s already more than a quarter paid for itself in Google Ads. ;-)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.522907
|
||
https://hackaday.com/2010/11/28/radar-gun-teardown/
|
Radar Gun Teardown
|
Chris Nelson
|
[
"Radio Hacks",
"Teardown",
"Toy Hacks"
] |
[
"radar",
"toy"
] |
[Jeri Ellsworth] is at it again, this time she
takes apart a hot wheels speed
gun
and in the process she does a good job of explaining how radar can be used to measure speed. She also demonstrates a way to determine if an object is approaching or receding from the radar gun.
The
Doppler
shift
is one way to remotely measure the speed of an object. It works by measuring the change in frequency of a wave after it strikes an object. Rather than measuring the Doppler shift of the returning wave most radar guns use the phase shift. The reason is that the frequency shift of a relativly slow object (60mph), to a relitivly high frequency signal(10GHz) is small (about 0.893Hz), where the phase shift varies based on the distance of the object. This is all just a stepping stone in her quest to build a crude TSA body scanner.
| 30
| 30
|
[
{
"comment_id": "220496",
"author": "CGross",
"timestamp": "2010-11-28T23:21:02",
"content": ">Implying the body scanner is refined",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220503",
"author": "JEDITALIAN",
"timestamp": "2010-11-28T23:47:09",
"content": "those body scanners expose you to more radiation than a CT scan, and for a longer period of time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220505",
"author": "zeropointmodule",
"timestamp": "2010-11-28T23:52:45",
"content": "nice project.Looks like making metamaterial lenses is now within the abilities of anyone with a PCB fabrication setup, potentially allowing sub mm resolution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220507",
"author": "Anonymouse",
"timestamp": "2010-11-29T00:08:41",
"content": "According to a German TV expose of TSA full body scanners (watch the video after the link), they are great for peeping-toms, but not so good for detecting bomb components. After carrying bomb parts through a scanner undetected, the guy in the video assembles and ignites a thermite bomb (partially melting the frying pan he uses to hold the demonstration).http://gizmodo.com/5454626/naked-airport-body-scanner-sees-everything-but-the-bomby-parts",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220508",
"author": "truthspew",
"timestamp": "2010-11-29T00:08:49",
"content": "Fuck! I saw LNB’s in a recycling bin and meant to go pick them up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220522",
"author": "BobSmith",
"timestamp": "2010-11-29T00:46:15",
"content": "The body scanners at an airport are backscatter x-ray machines. They use a very small amount of radiation to scan you, as it only has to penetrate clothing, and not flesh. Also, it’s about the same amount of radiation you’ll get in two minutes of flight at 30k feet. Being high up in the atmosphere exposes you to far more radiation than being on the ground, as there’s far less atmosphere to protect you from solar and cosmic radiation.Flying in the plane is what exposes you to high levels of radiation, not the backscatter x-ray machines. People really need a sense of perspective on these things. And yes, it’s enough radiation, that if you fly often, you can increase your risk of getting cancer. But, it will be from the flying, not the x-ray machines.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220536",
"author": "cde",
"timestamp": "2010-11-29T01:37:11",
"content": "There is a fundamental difference between different types of radiation, and how they are delivered. Radio and UV are radiation for one. Second, the backscatter xrays concentrate on the skin, instead of passing through harmlessly. Go back to the TSA blog Bob and choke on it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220549",
"author": "zool",
"timestamp": "2010-11-29T02:18:57",
"content": "@bobsmith any radiation can increase your risk of cancer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220562",
"author": "Fallen",
"timestamp": "2010-11-29T03:13:45",
"content": "I worked at Raytheon this summer. Anyways they build commercial radar. The circuits are fascinating, as often the only components on the boards are transistors. The inductors and capacitors are etched on. I’d imagine Jeri would love a tour of that place :D.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220571",
"author": "alan turing's dog",
"timestamp": "2010-11-29T03:53:01",
"content": "The scanners aren’t going anywhere; these days, unreasonable search and seizure means only the things that the folks doing the search/seizure can’t do easily. So that’s out. And even if it isn’t easy, if it can be linked with our current boogeymen (formerly communists and drug dealers, now terrorists and pedophiles) it gets a free pass.In addition, arguments about radiation won’t go anywhere – Look at cell phones. Basically, if it doesn’t kill you within a year, it isn’t harmful.It took 4 decades for warnings about smoking to get any traction, and we already knew about long term side effects in the mid-1930s. And even though the folks making cell-phones have backed down drastically on tx power for some reason, our current mantra is that “radiation must be ionizing to cause anything bad to happen”. So you can forget that approach, too.I will address one aspect though – look at the example images provided by manufacturers. I’m not talking the faked ones, I mean the straight from the TSA and manufacturer examples. You can clearly – CLEARLY – see bone structure in the legs and in many cases note Hip and rib structures, and sometimes shadows of fibroids and colon contents. >2cm penetration is not what I’d consider surface detection.The systems are clearly capable of running at variable power levels. But whatever – it’s a done deal. It won’t be long before insurance companies are onto these things – that is, after they finish correlating your legally purchased cellphone location data to the locations of drinking establishments – and start using the scanners to calculate your BMI visually using body volume/weight models.Btw, if you like google street-view, look up ZBV on youtube. Very cool technology, but flawed. The trucks are already wide-spread.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220572",
"author": "M4CGYV3R",
"timestamp": "2010-11-29T04:02:41",
"content": "I was digging the hell out of the video until that little possessed cop act at the end. Wtf, now I’m just scared.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220629",
"author": "Osgeld",
"timestamp": "2010-11-29T06:35:43",
"content": "be nice if she would explore electric lighting, I cant see crap for most of the video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220634",
"author": "R. Barrabas",
"timestamp": "2010-11-29T06:45:16",
"content": "Comparing the risk of backscatter X-rays to anything else is a falsecomparison. It’s used to allay fear when you don’t have a scientificbasis for your argument.We should only consider the risks by comparing againstnot takingthe risk. The fact that it’s small in comparison to anything isimmaterial.We get dental X-rays because tooth decay is common and lifethreatening if left untreated. Thus, the risks of not having one aremuch higher than the risks of having one and it’s a good trade off.Not so for backscatter at the airport. It’s a risk which is muchsmaller than the risk of not having them.Note that we’re in the position of completely trusting governmentand industry about the safety, and lots of really smart people whoare experts in the field are claiming that they might be dangerous.Here’s my complete take on the risks analysis.http://www.okianwarrior.com/MathView/AirportSecurity/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220756",
"author": "tmbinc",
"timestamp": "2010-11-29T11:26:51",
"content": "60 mph (28.8 m/s) gives me 960 Hz at 10 GHz, not sub-1Hz. Also, measuring phase shift *is* measuring the doppler shift. You’re just not measuring the absolute frequency that’s coming back (because measuring 10Ghz with a Hz accuracy isn’t fun), but you essentially de-modulate the received signal. What you get back (after a lowpass) is is the received signals shifted down by the transmitting signal – which is exactly what you’re looking for – a signal with the frequency *difference* (superposition law ftw). That also explains why you can’t measure the direction with a real signal – you have to move to a complex signal, using two transmitters and receivers (usually with a different polarization).You end up with the 960Hz (for 60mph) as your baseband signal, which is pretty simple to measure.The phase shift is *not* depending on the distance of the object (and Jeri never says that). If you want to measure the distance, one way is time of flight. Of course it’s pretty hard to send a short pulse, then measuring the sub-microsecond time. One way to solve this is to modulate the transmitting signal, for example by modulating the frequency. This can be easily done, usually by applying a saw-wave onto the supply voltage (since changing the supply voltage also changes the frequency of the oscillator). If you FM-demodulate the incoming signal, you can measure the time of flight indirectly, thus deriving the distance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220842",
"author": "Dave McDave",
"timestamp": "2010-11-29T14:45:38",
"content": "Just to add to tmbinc, you don’t need 2 transmitters and 2 receivers. You only require 1, but mix the signal received both once with the raw transmitted signal and once with the transmitted signal which has a 90 degree phase shift applied. That way you basically get a quadrature output and can compare the phase of the 2 output signals to determine direction of travel.Most commercially available microwave modules do this mixing for you so all you need to do is measure signals <300Hz and compare phases – relatively trivial with a few opamps and a micro.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220890",
"author": "FactChecker",
"timestamp": "2010-11-29T17:09:32",
"content": "@JEDITALIANYou are not entitled to you own facts. If you would like to make such a claim than please post source documentation. Who performed the test to make such a finding? What equipment was used?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220894",
"author": "draeath",
"timestamp": "2010-11-29T17:21:39",
"content": "To all the bodyscanner whiners: there’s a difference between backscatter x-ray and tetrawave scanners. Both are in use.Try to specify which you are complaining about when complaining.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220902",
"author": "draeath",
"timestamp": "2010-11-29T17:56:59",
"content": "Anonymouse:A thermite bomb is going to do exactly jack to a plane.Have some reading:http://www.aloha.net/~icarus/Basically the top half of the plane came off and an engine died, and it still got to the ground safely. I’m pretty sure a hole through the floor isn’t going to do it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220956",
"author": "Eirinn",
"timestamp": "2010-11-29T19:14:07",
"content": "@FactChecker well “the less you know, the more assumptions you have”, fits nicely in this context.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220959",
"author": "jonititan",
"timestamp": "2010-11-29T19:16:11",
"content": "I think it might be interesting to try and get doppler from a laser pointer and a IR sensitive transistor.Use a CW signal and then use the same reflected/transmitted wave interaction to measure doppler.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220960",
"author": "Eirinn",
"timestamp": "2010-11-29T19:16:35",
"content": "@draeath doesn’t it depend on the altitude? I’m pretty sure that a hole through the airplane would heavily alter the atmosphere inside the vessel :) I’m not saying this is enough, just that it could be a big problem (depending on size since i don’t think a small amount of thermite is going to melt a very large hole through a plane).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220973",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-29T20:06:14",
"content": "jonititan – This is very common for precision measurement. You can find information by searching Michelson interferometer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220987",
"author": "Rajstennaj Barrabas",
"timestamp": "2010-11-29T20:41:41",
"content": "@Eirinn I wrote the software that goes into [some] aircraft cabin pressurization systems.The short answer is it’s a serious event, but no one is expected to die.At high altitudes, passengers will go unconscious in 15 seconds or so (and the length of time you can hold your breath doesn’t affect this). The masks will fall and everyone is expected to put them on immediately.The same is true for the pilot and crew, but their “masks” are fully pressurized atmosphere units and not the trickle of oxygen that the passengers get.The emergency procedure is to dive the aircraft as fast as possible to a safe altitude. Once below 12,000 feet or so, the passengers will wake up.It’s the “emergency procedure” that’s important. Pilots are trained to take that action in the event of a sudden decompression, and bring the aircraft to an altitude where having a hole in the fuselage isn’t life threatening.(I’ve glossed over some details for simplicity)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221016",
"author": "cornelius785",
"timestamp": "2010-11-29T21:46:26",
"content": "@alan turing’s dogWell I can think of a few reasons to reduce Tx power of cell phones without the ‘OOOOOO it’s gonna gimme cancer in my brainz’ reason. Higher Tx power -> lower battery life, components \\emph{may} be larger, and it \\emph{may} force reduce the number of users able to connect (just a guess as there is a finite amount of codes, time slots, and frequency bins with increases powers, comes increased range, maybe enough for more towers to receive the signal and thus that code/time slot/frequency slot is in use)I also call BS on this ‘the X-Rays are concentrated in the skin’. So what tells the X-Rays to stop right within the skin layer? I’m more for the millimeter wave as it doesn’t use X-Rays and provides a much more ‘intimate’ picture for our wonderful friends in the TSA. The millimeter wave is a much more interesting method as it uses Frequency Modulated Continuous Wave RADAR (which I suspected first over a pulsed UWB RADAR). FMCW radar, in principle, is much closer to hobbyists (with lots large chunk, about $1000??? + prototype costs, of change and RF circuit know how) to get small range resolutions. I think I remember seeing a DDS or other digital oscillator that can sweep several hundred megahertz, maybe close to 1 GHz, on digikey. FMCW RADAR should be able to tell the distance and the velocity (speed + is it coming closer or moving further away) of an object.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221025",
"author": "asheets",
"timestamp": "2010-11-29T22:00:28",
"content": "Very interesting video, and Jeri sounds hot. But what I want to figure out is how to connect a camera to the Hot Wheels Radar Gun so I can nail those SOBs who go 50MPH on my dead-end, school-zoned (20MPH only) street with lots of kids running around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221155",
"author": "asfaf",
"timestamp": "2010-11-30T00:47:57",
"content": "You can also get psuedo-quadrature by splitting the IF output into two and using two sample-and-holds fed with a clock 90 degrees out of phase or you can perform the quadrature split at a lower IF frequency if your 10 GHz Gunn/DRO source doesn’t provide that output.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221351",
"author": "s",
"timestamp": "2010-11-30T07:11:25",
"content": "For version 2.0 would be a nice feature to add also the target’s acceleration calculated as the derivative of the speed, and the position delta integrating the speed signal output.Aren’t like that how the intelligent car anticollision warning radar systems works? ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221388",
"author": "Amos",
"timestamp": "2010-11-30T08:54:04",
"content": "@draeath and Eirinn: The point isn’t the /type/ of bomb that got through, but that one got through. Besides, all you need is some mercury (http://en.wikipedia.org/wiki/Mercury_(element)#Mercury_and_aluminium).@Jeri1) I can’t wait for that LNB article. I have a big pile of the suckers kicking around (which I’ll put on the HaD Classifieds if anyone wants some).2) Seriously, what’s up with the dark videos?3) Umm, yeah, the cop thing was quite freaky. Not your best idea :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223907",
"author": "alan turing's dog",
"timestamp": "2010-11-30T22:03:24",
"content": "Yeah, me too – Jeri’s videos all seem to need better lighting and more contrast. Don’t know what tools she’s using, but contrast and balance is easy to come by.And that cop thing… Well, as the safety SS has been claiming, some derangement was inevitable for her, but that was kind of sudden. $5 says she’ll start using hand puppets any day now.@cornelius785 – you asked:“So what tells the X-Rays to stop right within the skin layer?”Basically, absorption and backscatter, the heart of most imaging technologies. The radars are called back scatter because they bounce off harder atoms in the body – mostly carbon, I’d guess. That’s why old school carbon paper (and not the fake purple ink capsule kind) blocks these scans.These cannot penetrate very far without being attenuated to the point where the returned signal can be detected.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223967",
"author": "alan turing's dog",
"timestamp": "2010-11-30T22:39:26",
"content": "oops, I meant cannot be detected.@draeath – I wouldn’t go so far as to claim that thermite would be harmless to heavy aircraft. I don’t know what airbus/boeing fuel systems look like, but I’ll bet the tanks are under the cargo deck. I doubt any one guy could get a significant amount of thermite mixed up, and that the odds of bringing a plane down are pretty damn slim, but it’s not really a non-event, you know?Actually, I’m surprised they haven’t been trotting out the scary anthrax thing, which always plays to the “momma, I’m scared!” crowd.Releasing any of the thousands of “killer” bio agents on a plane would be waaaaaaay worse than blowing it up – but I guess that until someone in the administration has a fiduciary interest in selling a solution, it won’t make the evening news.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.037437
|
||
https://hackaday.com/2010/11/28/strong-enough-to-lift-a-person-yet-gentle-enough-to-embrace-a-child-%e2%80%9d/
|
“Strong Enough To Lift A Person, Yet Gentle Enough To Embrace A Child.”
|
Joseph Thibodeau
|
[
"classic hacks",
"Robots Hacks"
] |
[
"60s",
"fetso",
"Kraken",
"robot",
"tentacle",
"vintage"
] |
Tentacles have inspired fear and respect in humans long before anime came into the scene. Sailors shivered in their timbers at the thought of the great Kraken, or that octopus from
20,000 Leagues Under the Sea
. It’s no surprise to know that humans have been trying to harness this fear and respect in technological form since the mid-20th century at least.
The fascinating world of tentacle robots has come a long way. It used to be that every breakthrough in tentaclebot technology had to be justified with either a military or misogynistic application, as demonstrated in
this remarkable MIT project
from 1968.
Thankfully our society has moved on since those misguided times, and while there is still the ever-present military-industrial complex to push for
tentacled combat-omatons
, forward-thinking people on the domestic front like [festo] demonstrate that at least some of us want to use tentacle robots for
peace, love and food handling
.
Catch the video after the break.
[youtube=http://www.youtube.com/watch?v=JuXQPdd0hjI&w=470]
| 13
| 13
|
[
{
"comment_id": "220461",
"author": "Brett",
"timestamp": "2010-11-28T22:09:46",
"content": "1968? Very nice, Its actually very smooth too :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220469",
"author": "Jenna Fox",
"timestamp": "2010-11-28T22:35:40",
"content": "I made some little single axis tentacles (trivial to make two axis version) for a halloween costume recently, from some fish tank stiff silicon hose, paracord, embrodery thread, and a servo mounted to the arm structure with a little makerbot-printed bracket:http://www.youtube.com/watch?v=U_Ptj0mZNl0Turned out really well, and cost me less than ten bucks per tentacle! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220483",
"author": "CutThroughStuffGuy",
"timestamp": "2010-11-28T23:00:30",
"content": "I, for one, was disheartened to read an entire post about tentacles and see no mention of:Tentacle rapeManiac Mansion",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220525",
"author": "Gilliam",
"timestamp": "2010-11-29T01:03:45",
"content": "@CutThroughStuffGuyi was disappointed too.I read that too fast and thought it said“…peace, love and fondling.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220747",
"author": "Red Mullet",
"timestamp": "2010-11-29T10:37:59",
"content": "I’ve always wondered what comb-a-tomatons would look like :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220764",
"author": "Whatnot",
"timestamp": "2010-11-29T11:51:51",
"content": "Makes me realize how rare tentacle robots are in scifi, even now that we can render the whole thing, you don’t see them in star wars AFAIK nor star trek nor stargate etcetera.Overall it’s very rare to see them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220769",
"author": "Whatnot",
"timestamp": "2010-11-29T12:02:30",
"content": "They also make other things that are interesting like an air jelly (fish)http://www.festo.com/rep/en-us_us/assets/swf/corporate_media/AirJelly.swf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220880",
"author": "ENKI-][",
"timestamp": "2010-11-29T16:41:57",
"content": "Tentacle arm + coffee gripper => win",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221216",
"author": "therian",
"timestamp": "2010-11-30T02:14:37",
"content": "tentacles + robot + japan => weird sex bot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223054",
"author": "jimmy",
"timestamp": "2010-11-30T17:32:23",
"content": "“…Thankfully our society has moved on since those misguided times…”Yeah, right. Funny stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223914",
"author": "JAGAK",
"timestamp": "2010-11-30T22:07:38",
"content": "Pretty sure it was a squid not an octopus in 20,000 Leagues Beneath The Sea :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "242398",
"author": "PocketBrain",
"timestamp": "2010-12-04T03:36:59",
"content": "Think of it more as an elephant trunk than as a tentacle, it takes on a friendlier character.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "248299",
"author": "Ramen Alchemist",
"timestamp": "2010-12-05T01:22:27",
"content": "It’s a mechanical prehensile tail.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,327.82153
|
||
https://hackaday.com/2010/11/26/cheap-audio-equipment-makes-atm-theft-easier/
|
Cheap Audio Equipment Makes ATM Theft Easier
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"atm",
"audio",
"recorder",
"skimmer"
] |
ATM information theft is nothing new. Neither is the use of skimmers to gain access to the data. But it’s a little surprising just how easy it has become to
hack together the devices using audio equipment
. The images above are samples of a skimmer for sale from an Eastern-European do-no-good. It is the magnetic stripe sniffer portion of the attack which captures card data as an audio recording. That is later turned into the binary code that was read from the card. We’re just speculating, but that looks an awful lot like the PCB from a pen recorder, something you can pick up for just a couple of bucks.
Of course this is used in conjunction with a camera to capture PIN data as the second part of the security protocol, but it really underscores the need for new ATM technology. Some skimmers
don’t even require retrieval of the hardware
, and you never know
where the sketchy machines might pop up next
.
[via
Engadget
and
Slashdot
]
| 17
| 17
|
[
{
"comment_id": "219233",
"author": "jcprojects",
"timestamp": "2010-11-26T16:51:50",
"content": "So is it using the microphone to sense the card’s magnetic signature? I guess I could see that but not sure if it’s just the standard mic or not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219244",
"author": "BiOzZ",
"timestamp": "2010-11-26T17:55:14",
"content": "wow there getting smaller and smalleri dont use ATMs any more because of that big scare at defcon",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219246",
"author": "steven-x",
"timestamp": "2010-11-26T18:05:27",
"content": "I followed some links off the main article, looks like crooks are getting smarter. At least some- most of the on-line ad for skimmers were scams to steal from would-be theives (some poetic justice here). The scariest ones were the devices hidden inside gas pumps… there you have no indication anythin was amiss. They did mention the most outlying pumps were the most targeted.Personally, I avoid ATMs, and use credit cards (more protection and no link to my account). Even my paypal account is linked to a small credit union account to prevent some black-hat hacker from draining my life savings.Some of there devices have wi-fi links or send test messages… maybe we need to hack up a simple RF sniffer to detect them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219254",
"author": "Addidis",
"timestamp": "2010-11-26T18:16:29",
"content": "All you people who think stealing is ok as long as it steals from some one who might have been planning to steal are absolutely no better then those you complain about. Karma is a b#&@.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219259",
"author": "davo1111",
"timestamp": "2010-11-26T18:26:43",
"content": "Addis – nobody said stealing is ok you spastic. The article is talking about the simple technology used by professional thieves to skim cards. Get your head out of your ass.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219269",
"author": "Maave",
"timestamp": "2010-11-26T18:34:40",
"content": "I thought of something like this just recently. I was thinking of using that mini spy microphone that HaD posted to send the data to a remote computer, where the data would later be decoded.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219281",
"author": "Shaddack",
"timestamp": "2010-11-26T18:44:40",
"content": "The thing on the picture is not an audio recorder, but a “spy pen” – a cheap videocamera with audio input. I got one and played around and here is a more detailed technical specification.http://shaddack.twibright.com/projects/reveng_spypen/It seems that in addition to using its guts, the perpetrators also boosted its internal battery with third-party Li-poly packs. Which is a prudent thing to do, as the record time is limited by the battery capacity (~2 hours), not by memory (~20 hours at 2GB model, IIRC).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219285",
"author": "ejonesss",
"timestamp": "2010-11-26T18:53:41",
"content": "i suspect that the technology in the digital electronics are rather low tech to where a simple loud sharp noise would be read as a 1 and lack of noise as a 0.so you the loud crack of dropping a pool ball on the pavement or the bang of a gun shot.so in theory i guess if you had a way to have your friends time guns firing or banging pool balls on the pavement you could emulate the binary string on the card.a way they could fix that problem is in the same security that garage door openers use.when the card is swiped the atm sends the data to the bank then the bank tells the atm to write a new string of data to the card so if the card is copied then the next use of the card voids out 1 card so no 2 or more working copies could exist.you do a transaction at the atm and the card gets written with a new code.the skimmers make a new card and if they are able to use that code before you do another purchase on the card it will roll again making your card will no longer work alerting you to a problem.you call up to find out what’s wrong and get a new card as a result of a stolen card being used.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219295",
"author": "Addidis",
"timestamp": "2010-11-26T19:21:57",
"content": "Learn to read davo“to steal from would-be theives (some poetic justice here).” Posted at 10:05 am on Nov 26th, 2010 by steven-x",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219297",
"author": "Addidis",
"timestamp": "2010-11-26T19:27:21",
"content": "Cant believe im gonna contribute to this lol, but @ejonesss,That being the case wouldnt it be easier to use something like Propellorheadz Reason , and lay out the binary in a synthesizer I think this would be a little easier then throwing billard balls, and give much better accuracy. Then just generate a wav or what ever audio file this uses drop it in and you can generate credit card numbers. :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219300",
"author": "xorpunk",
"timestamp": "2010-11-26T19:36:41",
"content": "put a bank or contract for challenge/response that can’t be dumped and has a decent protocol..it’s been working for all the non-TI RFID in car keys since the 80s..Mag stripe data is too easy to clone",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219563",
"author": "gottabethatguy",
"timestamp": "2010-11-27T05:00:41",
"content": "Addidas, He never said stealing was ok, he stated that there was “some poetic justice here”.Go and google what poetic justice means and if you feel like still defending your statement I feel sorry for you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219679",
"author": "Till",
"timestamp": "2010-11-27T10:01:22",
"content": "Aren’t those mics normally capacitive versions?Aren’t there 4 lanes of data in parallel?I don’t see this thing on the picture working at all for cardcloning.I guess Shaddack is right – this is only the video-pinlogger.The real skimmer is more sophisticated at the sensorlevel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219682",
"author": "Till",
"timestamp": "2010-11-27T10:13:05",
"content": "P.S. checked wiki ;)3 lanes of data – one for backup at a different bitdensity and codeing. Third lane is not standardized.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219710",
"author": "xorpunk",
"timestamp": "2010-11-27T11:32:29",
"content": "Ahh looks like a company already thought of my idea and it works to some degree, still need a embedded challenge response though:http://www.schneier.com/blog/archives/2009/12/magneprint_tech.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219725",
"author": "zeropointmodule",
"timestamp": "2010-11-27T12:41:34",
"content": "yet another example of the adage “the criminal mind is always superior, it has to be”..you’d think that the banks would have added anti-tamper circuitry by now, which alerts the victim to the fact via a silent flashing warning on the screen..(fwiw i had the same problem with one of these cameras, the battery life was horrible for the intended application of a model helicopter cam)…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219814",
"author": "Grovenstien",
"timestamp": "2010-11-27T18:59:36",
"content": "CASH IS KING!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.142606
|
||
https://hackaday.com/2010/11/25/hopefully-detect-trolls-before-they-devour-you/
|
Hopefully Detect Trolls Before They Devour You
|
Joseph Thibodeau
|
[
"Misc Hacks",
"Security Hacks"
] |
[
"accelerometer",
"arduino",
"Norway",
"seismic",
"troll"
] |
In the cold and mysterious wilderness of Norway, it pays to be ready for anything–especially heavy-walking trolls. The team at [nullohm] decided to prepare thoroughly for their trek into the woods to witness the Leonids meteor shower by putting together an
Arduino-based “troll detector”
.
The device is
based on the superstition
of hammering a steel spike into a tree to keep trolls away from camp. This goes one step further by including an accelerometer and LED indicators so that you can tell
exactly what type of troll
is just about to feast upon your tender human flesh.
When the detector is installed into a nearby tree, it takes an average seismic measurement and then looks for telltale footfalls. Even if you’re not concerned with perpetuating superstitions, you might find a use for the
source code
for simple seismic activity monitoring at home to supplement your
miniature seismic reflector
.
| 24
| 24
|
[
{
"comment_id": "218698",
"author": "jeff-o",
"timestamp": "2010-11-25T22:09:21",
"content": "I wonder how they tested it? With elephants?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218720",
"author": "Daid",
"timestamp": "2010-11-25T22:39:49",
"content": "With trolls of course, the internet is full of them. Shouldn’t be any problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218751",
"author": "jeff-o",
"timestamp": "2010-11-25T23:20:51",
"content": "That makes sense.Actually, this could be useful as an intrusion detector, assuming it’s sensitive enough to detect the footfalls of humans as well as trolls.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218775",
"author": "Zork",
"timestamp": "2010-11-26T00:27:11",
"content": "You have been eaten by a grue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218782",
"author": "Chris",
"timestamp": "2010-11-26T00:48:33",
"content": "Seismic sensors have been used for intrusion detection at secure sites for years now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218824",
"author": "squidarthur",
"timestamp": "2010-11-26T02:35:32",
"content": "funny, inventive and practically useless. In other words, a great hack.That’s not what ‘hopefully’ means, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218846",
"author": "RadBrad",
"timestamp": "2010-11-26T03:41:51",
"content": "Grendel will no longer have the element of surprise. Nice hack!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218951",
"author": "Digital",
"timestamp": "2010-11-26T05:40:10",
"content": "@Zorkpriceless. just priceless!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219028",
"author": "BiOzZ",
"timestamp": "2010-11-26T07:46:07",
"content": "i find it fun when superstition hits science XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219085",
"author": "James",
"timestamp": "2010-11-26T09:47:48",
"content": "Probably find that its not steel, so much as iron. Specifically cold iron, as most fae are negatively affected by it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219102",
"author": "Necromant",
"timestamp": "2010-11-26T10:40:55",
"content": "Woah,nowteyjust nedd tohookit to wordpress to detect internet trolls as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219103",
"author": "Necromant",
"timestamp": "2010-11-26T10:47:22",
"content": "Ooops, looks like my keyboard’s dead.I meant “Now they just need to hook it to wordpress to detect trolls in comments. “",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219123",
"author": "Eirinn",
"timestamp": "2010-11-26T12:27:28",
"content": "@Necromant a better alternative allready exists, it’s called Stupid Filter, google it :oP",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219130",
"author": "PR0CR4571N4T0R",
"timestamp": "2010-11-26T12:46:31",
"content": "1) Is this HAD post trollbait?2) Are accelerometers really that sensitive to seismic activity? (ie, from the earths movements. not someone stomping near a tree)Obviously not. so right, this thing will indicate the direction of a tresspasser? how will it do this when the tree can only move side-to-side?Are there other models more precise for this purpose?3) Are people from norway really that superstitious? [read: stupidstitious]4) This isnt really a hack, is it?5) HAD Editors, leave out all the bullshit from a post and get to the point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219134",
"author": "PR0CR4571N4T0R",
"timestamp": "2010-11-26T13:04:47",
"content": "6) Your site crashed my firefox session. granted, i wasnt missing much anyway was i.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219136",
"author": "absolutezero",
"timestamp": "2010-11-26T13:15:37",
"content": "@PR0CR4571N4T0R7) waaaaaaaa@HADThanks for the hilarious post! I needed a good laugh :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219184",
"author": "Mane",
"timestamp": "2010-11-26T14:19:37",
"content": "I also wonder how’d they calibrate the thing? Can you get the data from telltales? Now that would be a nice hack :)-folktalecalibration",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219188",
"author": "strider_mt2k",
"timestamp": "2010-11-26T14:42:12",
"content": "Hmmm. Neat project!yeah you need a Grue detector/repeller.On a side note I wasn’t aware of the superstition, but it DOES explain why I’ve seen railroad spikes driven into trees where I’ve camped in the past.Generally I’m not superstitious, just extrastitous.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219192",
"author": "Necromant",
"timestamp": "2010-11-26T14:53:46",
"content": "@Eirinn Thanks, nice project. However newbies are not trolls. And I guess it will take more than bayes filtering to detect ‘thin’ trolls posts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219200",
"author": "Philip",
"timestamp": "2010-11-26T15:42:33",
"content": "Another good hack will be a machine that fires railroad spikes into trees.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219242",
"author": "Will",
"timestamp": "2010-11-26T17:47:53",
"content": "FINALLY A DEVICE THAT WILL TAKE CARE OF o wait…oops nope internet trolls are not taken care of fail owell NOW A DEVICETHAT WILL KEEP THose TrOLLS OUT OF MY kITCHEN YES!!!!!!!!!!!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219243",
"author": "Will",
"timestamp": "2010-11-26T17:50:32",
"content": "O fail my keyboard is messing up owell thats wat u get for a 1999 USB apple keyboard",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219346",
"author": "DanteUseless",
"timestamp": "2010-11-26T20:58:51",
"content": "@PR0CR4571N4T0R3)http://www.youtube.com/watch?v=e4PGFODxiJc(The Troll Hunter – Official Trailer)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219704",
"author": "Ketin",
"timestamp": "2010-11-27T11:10:53",
"content": "Just make sure Dethklok is not in town making an apology and you should be fine.For those not in the know: Dethklok is a fictional metal band that visits Finland in one episode to apologize for the country being destroyed by riots during their last tour. None of them are any good at speaking, so they make a song for it using lyrics from the countries book of necronamics. They awaken the Kraken which proceeds to destroy the country again.http://www.youtube.com/watch?v=uCUnhoe0rpU",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.202974
|
||
https://hackaday.com/2010/11/25/elder-robots/
|
Elder Robots
|
Joseph Thibodeau
|
[
"Robots Hacks"
] |
[
"robot",
"senior",
"vintage",
"walking",
"wwii"
] |
It’s always nice to show our appreciation for our elders. Today’s young robots may be whippier, snappier, and go-gettier than their forbears but you have to admit that few of them have the moxie to dust themselves off after 45 years and have a walk around town (although it still wouldn’t qualify for a senior’s discount). George, a British humanoid robot made out of a WWII bomber, was
resurrected by his inventor
after decades in the garage–and all it took was a little bit of oil and some new batteries.
Respect.
George is very impressive, but he’s not the oldest robot by any means. Ever-popular Buddha inspired a
Japanese robot some 80 years ago
that has recently been updated (pics
here
)–do robots meditate in solid state?
In a similar aesthetic vein to George, Chinese farmer Wu Yulu made a
robotic rickshaw driver
, one of his many eccentric projects since the 80s.
Here on hackaday we see a lot of modern robotics, but what about a return to the old school? Next time you have a scrap airplane on hand why not weld together a classic robot, and while you’re at it give your regards to old George.
| 8
| 8
|
[
{
"comment_id": "218633",
"author": "mjrippe",
"timestamp": "2010-11-25T20:29:16",
"content": "“George was pictured carrying the shopping, hovering and even mowing the lawn.”Um, shouldn’t that be “hoovering” (vacuuming)? I don’t think George had anti-gravity capabilities!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218693",
"author": "Ben Ryves",
"timestamp": "2010-11-25T21:54:25",
"content": "There’s a video of George on the BBC website –http://www.bbc.co.uk/news/technology-11766846",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218697",
"author": "Michael Bradley",
"timestamp": "2010-11-25T22:09:00",
"content": "I love it. Here is a person who was ahead of the time, technology just wasnt there to do what he wanted, but he tried, and in my opnion, succeded.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218761",
"author": "yibble",
"timestamp": "2010-11-25T23:40:43",
"content": "Anyone else notice that this is Tony Sale, who led the project to rebuild the Colossus MkII at the Museum of National Computing / Bletchley Park?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218762",
"author": "yibble",
"timestamp": "2010-11-25T23:41:22",
"content": "Ah, just watched the BBC video, slap me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218814",
"author": "Olivier",
"timestamp": "2010-11-26T01:38:59",
"content": "@Ben Ryves: thanks! It’s exactly what was missing in this post: a video of the robot. Looks great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218818",
"author": "VV",
"timestamp": "2010-11-26T02:05:55",
"content": "If you can get up to Bletchley park do go and see. I went with my college and Tony Sale did part of the tour. Its a fantastic museum there. If you live in the UK make the effort to go, they are always in need of donations to keep the place running.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219213",
"author": "ftorama",
"timestamp": "2010-11-26T16:25:27",
"content": "well, don’t forget Vaucanson, his duck and other creatures:http://www.swarthmore.edu/Humanities/pschmid1/essays/pynchon/vaucanson.html",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.566341
|
||
https://hackaday.com/2010/11/25/making-music-with-tech-stolen-from-predator/
|
Making Music With Tech Stolen From Predator
|
Mike Szczys
|
[
"digital audio hacks"
] |
[
"controller",
"manta",
"max",
"msp",
"touch sensor"
] |
This is
a second generation Manta
, a touch-based controller with visual feedback made to use with Max/MSP. The hexagonal size and the patterns seen in the video after the break remind us of the arm-based computers the Predators sport in the movies. Like the previous generation, this controller can tell not only which of the 48 sensor you’re touching, but how much of your finger is touching it. The sky is the limit on extensibility with this type of data, but for now you can just try out the pre-built plugin and see how it goes. New with this rendition of the Manta is the use bi-color LEDs which adds another lay of interaction with the PC to which this is tethered.
If you don’t mind giving up the touch controllers for good old push buttons perhaps
this Harmonic Keyboard
is right up your alley.
[vimeo=http://vimeo.com/15372834]
[via
Engadget
]
| 17
| 17
|
[
{
"comment_id": "218550",
"author": "MrX",
"timestamp": "2010-11-25T18:50:06",
"content": "That is a really nice build. I usually go the capacitive way when building touchscreens, but this time I got a feeling I should try resistive next time.Wouldn’t he get more precision by decreasing the width of the contact tracks and increasing the number of them?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218566",
"author": "Hackius",
"timestamp": "2010-11-25T19:02:24",
"content": "Predator computers are ARM based? I never knew",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218567",
"author": "Hackius",
"timestamp": "2010-11-25T19:02:47",
"content": "MrX: Where do you get your capacitive screens?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218572",
"author": "Randall",
"timestamp": "2010-11-25T19:12:03",
"content": "Proofread better. I’ve seen more typos in the last 3 posts I’ve read on this site than in the years Ive been following it prior.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218590",
"author": "Elias",
"timestamp": "2010-11-25T19:54:54",
"content": "Cool thing, wish it would make some nice sounds too instead of only noise :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218637",
"author": "Tech B.",
"timestamp": "2010-11-25T20:29:47",
"content": "1 for anything pred.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218655",
"author": "Eirinn",
"timestamp": "2010-11-25T20:51:31",
"content": "Awesome build, but holy crap i wouldn’t call that music. Reminds me of the touch screens from the star trek on board Enterprise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218665",
"author": "The Moogle",
"timestamp": "2010-11-25T21:08:50",
"content": "700$ to buy one? Yikes!At least he could have went gold plated to prevent corrosion from sweaty hands djing at a night club",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218668",
"author": "hekilledmywire",
"timestamp": "2010-11-25T21:11:52",
"content": "Even tin plating would be better than what is offered.700$ means a lot of profit to sell a noise maker that needs an expensive program in the pc to even work lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218723",
"author": "Steve",
"timestamp": "2010-11-25T22:42:04",
"content": "If a DJ rocked up at my local club playing this shite he should be worried about more than just corrosion from sweaty hands.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218778",
"author": "MrX",
"timestamp": "2010-11-26T00:32:49",
"content": "@HackiusI make them. They are static back-lit touchscreens like this one. The design is similar to this one – I cut the tracks and pads from thick aluminum paper (PCBs work too) but instead of using finger resistance to measure screen touches, I charge tiny capacitors and then measure the discharge when your body enters contact with the conductive pad.There is plenty of documentation out there on using AVR’s pins in high-impedance to measure charge variance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218781",
"author": "JEDITALIAN",
"timestamp": "2010-11-26T00:44:02",
"content": "damn. daft punk could have made the tron movie sound much better with that shit",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218834",
"author": "Digitalundernet",
"timestamp": "2010-11-26T03:06:14",
"content": "To everyone saying “thats not music” Thats Christopher Jon playing. He plays industrial rock music with his band I, parasite, synths for Android Lust and makes noise music for another band. Forgot the name though.Anyway while you might not think so this man has serious synth patching skills; and the sounds can be changed anyway its not like they’re hardwired into the thing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219110",
"author": "Donov4n",
"timestamp": "2010-11-26T11:15:28",
"content": "My arse flute is more melodic that this guy “mastering” this “instrument”.However if they sell this stuff for 700bucks they make at least 680 margin, because it’s not too complex to set this up with a few QMatrix touchlib AVRs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219126",
"author": "Bjonnh",
"timestamp": "2010-11-26T12:34:05",
"content": "I love this !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219193",
"author": "smoker_dave",
"timestamp": "2010-11-26T14:56:23",
"content": "@Digitalundernet“makes noise”You hit the nail on the head there son.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219611",
"author": "Dan Fruzzetti",
"timestamp": "2010-11-27T06:45:30",
"content": "The thing about this kind of “data-intensive device” is its inherent compromise:The more detailed data you pull from it (say, to make more different nuances in the music), the more skilled the performer has to be.If you use the data to really “max out” the capabilities of the device, you make an instrument that may be impossible, or at least impractical, for any performer.It’s like, initially speed limits were 5-10 miles per hour; as the equipment got better we were able to push that to (roads considered) pretty close to “safely sub-average” human limits — we need self-driving cars before we can go 150mph everywhere.The relation is simply that you can probably use a device like this to require more skill than a human can learn. I think that would be a fascinating study.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,328.619532
|
||
https://hackaday.com/2010/11/25/thanksgiving-with-thermite/
|
Thanksgiving With Thermite
|
Caleb Kraft
|
[
"News"
] |
[
"thanksgiving",
"Thermite"
] |
For those in the states, Happy Thanksgiving. Whether or not you
celebrate
the traditional holiday, you might still want to take a moment to think of what you are thankful for. We are thankful for our readers, who drive us to keep posting projects and challenge us to improve our skills. The Hackers, who supply us projects to write about, both simple and complicated. We are thankful for our bosses, who employ us to do this awesome stuff and only beat us occasionally. And we are thankful for
thermite
, which burns oh so bright and looks oh so pretty.
Join us after the break to see a turkey, roasted with thermite in slow motion.
[via
Neatorama
]
[youtube=http://www.youtube.com/watch?v=SU8iRYbnAb0&w=470]
| 38
| 38
|
[
{
"comment_id": "218480",
"author": "Necromant",
"timestamp": "2010-11-25T16:22:04",
"content": "Looks like those guys are insane: Such a cooking method sucks. It will be burned on the outside and raw on the inside. Look carefully and you see that only a thin layer is cooked ok.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218481",
"author": "JEDITALIAN",
"timestamp": "2010-11-25T16:23:12",
"content": "mmm.. AlOx residue.. and partially uncooked turkey",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218486",
"author": "Gdogg",
"timestamp": "2010-11-25T16:28:23",
"content": "Guys.. I doubt they’re actually going to eat the bird.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218491",
"author": "d01",
"timestamp": "2010-11-25T16:39:23",
"content": "what a waste…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218502",
"author": "anon",
"timestamp": "2010-11-25T16:50:06",
"content": "@d01:… of thermite?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218519",
"author": "Tom Hargrave",
"timestamp": "2010-11-25T17:27:38",
"content": "Almost as fun as starting a grill with LOX.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218524",
"author": "nah!",
"timestamp": "2010-11-25T17:34:54",
"content": "pressure deep frying is way cooler",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218530",
"author": "yez",
"timestamp": "2010-11-25T17:44:53",
"content": "Even though thermite is hell lot of fun, is it really necessary to waste food and for that matter a once living thing, like that?Ain’t veggie here…I love my meat, but thats just bs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218533",
"author": "jim",
"timestamp": "2010-11-25T17:51:01",
"content": "Retarded :3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218534",
"author": "BiOzZ",
"timestamp": "2010-11-25T17:52:13",
"content": "@d01as long as it detonates and you can see it there is no such thing as a waste of termite",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218538",
"author": "question",
"timestamp": "2010-11-25T18:08:05",
"content": "@ BiozZ,yeah no such thing as waste. though is it detonate or deflagrate? shockingly the ol compy thinks deflagrate isn’t a word when it is one of my favorites. (it denotes subsonic combustion, a slow explosion)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218540",
"author": "francis sanchez",
"timestamp": "2010-11-25T18:20:34",
"content": "yeah it’s really nice to see a turkey killed so a bunch of losers can waste it. the thing didnt die in vain at all. I guess the american way is kill, waste or eat. preferably all three at the same time. here it was only 2 out of 3. stupid redneck hacks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218542",
"author": "Haku",
"timestamp": "2010-11-25T18:23:31",
"content": "Now I’m curious to see what happens if you do the thermite-over-ice trick with a frozen turkey, would it explode?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218543",
"author": "1000100 1000001 1010110 1000101",
"timestamp": "2010-11-25T18:25:47",
"content": "@BiOzZThe termites definitely got wasted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218546",
"author": "MrX",
"timestamp": "2010-11-25T18:45:12",
"content": "So much people dying with hunger and those idiots throwing things away.Where is the hack?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218548",
"author": "ben",
"timestamp": "2010-11-25T18:47:39",
"content": "if you got to see it, the termite wasn’t wasted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218563",
"author": "John",
"timestamp": "2010-11-25T18:58:53",
"content": "I don’t see anything fun in trashing food and new things. Definitively not one of your best posts :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218639",
"author": "umf",
"timestamp": "2010-11-25T20:31:48",
"content": "Yes, where’s the hack, Caleb?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218641",
"author": "Spork",
"timestamp": "2010-11-25T20:35:00",
"content": "Wow, what a bunch of whiners. I didn’t realize HaD was full of bleeding hearts and pansies.I thought it was cool and could care less that a turkey died to make the video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218656",
"author": "revlchurch",
"timestamp": "2010-11-25T20:52:19",
"content": "Ah lighten up. It was fun to watch. And another thing people will always go hungry, there will always be poor, and life sucks. But a little thermite brightens up the day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218659",
"author": "Eirinn",
"timestamp": "2010-11-25T20:58:30",
"content": "People are whining over… misuse of a turkey? Seriously this is NOTHING compared to how much unneeded waste a normal human being produces in an impressively small amount of time.Yes a turkey died… for the amusement of 145.415 people and counting (minus the nay-sayers).Get your morals right first.Then laugh of this spiffy thanksgiving video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218660",
"author": "Walt",
"timestamp": "2010-11-25T20:58:34",
"content": "Magnesium is better….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218677",
"author": "echodelta",
"timestamp": "2010-11-25T21:25:17",
"content": "I want to see detonated drumsticks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218689",
"author": "Darth Siphilis",
"timestamp": "2010-11-25T21:44:16",
"content": "I don’t really care about the wasted turkey, but it just wasn’t funny or cool… Ooh a thermite explosion, haven’t seen one of those before… It would be much cooler if they used a little bit and tried to actually cook the turkey instead of just another explosion",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218703",
"author": "fireraisr",
"timestamp": "2010-11-25T22:14:31",
"content": "Seriously? People are offended that this bird was wasted?Over 45 million turkeys are consumed by the US on turkey day.The bird was already dead, they didn’t kill it.I can see someone being outraged if they intentionally went into the wild and were like “Hey lets kill a turkey so we can fill it with thermite”You people need to get off your high horse and live a little. “Where’s the hack?” ??? Are you serious?!? Sometimes I have no hope that civilization will last thanks to idiots like you guys.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218726",
"author": "Henrik Pedersen",
"timestamp": "2010-11-25T22:46:55",
"content": "@fireraisr @Spork @Eirinn– All completely right, and now I’m the list to!Whine about something like this? Oh come on. They where trying to make a little fun, who doesn’t like to see things burn / explode? ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218768",
"author": "The Phantom",
"timestamp": "2010-11-26T00:01:10",
"content": "I cooked a turkey yesterday, part of a supermarket give-away. Came out tougher than old boot leather. Like eating a rusty bed spring.Would have been -less- of a waste to blow it to hell with thermite, and more fun too. Next thanksgiving I’m tempted to see how many rounds of .308 a frozen turkey can take before splintering. Whiners can bite me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218811",
"author": "Will",
"timestamp": "2010-11-26T01:32:52",
"content": "REally? REALLY?People whinning over a turkey ignited with thermite. He ATE A SMALL PEICE OF IT AND MADE A NeAT LOOking explOSIon. Stop whinning and get off hackaday. If you dont like their content then dont go to the site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218864",
"author": "NatureTM",
"timestamp": "2010-11-26T04:05:36",
"content": "Well I’ve got a stomach full of Thanksgiving joy, so I don’t really feel too bad about the wasted turkey. If I’d been eating Ramen Noodles for the past week I’d probably be pissed though.Still, would I kill a turkey so I could throw some thermite in it and see it burn? Probably not. I don’t think the people in the video thought of themselves as doing that either, although that goth chick did look pretty evil.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218968",
"author": "d01",
"timestamp": "2010-11-26T06:40:19",
"content": "SHEESH guys , it took me 2 seconds to simply state that this was a waste of resources, yet some of you raeg over paragraphs and paragraphs about whiners on HaD (go figure).Get a hold of yourselves.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219056",
"author": "BiOzZ",
"timestamp": "2010-11-26T08:40:02",
"content": "why are people so complainey?if you don’t want to do it for the love of god don’t do it1) its not a waste of anything seeing that a fair chunk of termite goes towards fun (sparklers are termite)2) termite is essentially ground aluminum and rust its not in short supply … i probally have 10 pounds of the stuff in my sawdust corner … and neither are turkeys or dinner sets3) IT WAS COOL LOOKING … i got a giggle and using 1/100,000,000th of the worlds terky and termite supply i think its worth at least one giggle",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219181",
"author": "theVeg",
"timestamp": "2010-11-26T13:57:20",
"content": "Sweeet,Great way to grill yer turkey,The special effects rule over the side effects (of AlOx ).moment of silence for the turkey, moment of cheer for the termite :DHappy thanxgivin’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219190",
"author": "strider_mt2k",
"timestamp": "2010-11-26T14:48:23",
"content": "Looks like fun, but indeed…not to eat.Ya we could do with a little less crying over spilt boid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219226",
"author": "Chris",
"timestamp": "2010-11-26T16:35:50",
"content": "so, people complain, so other people complain about the complainers, who complain about being complained about? really? (I’m not complaining.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219231",
"author": "vmspionage",
"timestamp": "2010-11-26T16:50:05",
"content": "If I’m ever killed for food I would rather go up in a blaze of thermite-fueled smoke than under the forks of American fatties. That turkey is a rock star.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219543",
"author": "Hindsight",
"timestamp": "2010-11-27T03:38:29",
"content": "All of you people offended by this video, stand up for a minute…Now… if you scraped any food off of your plate and threw it away any time this past year, sit down.If you squandered oil and polluted the environment by drinking water out of a bottle any time this last year, sit down.If you drove a car or flew in a plane for the purposes of entertainment or vacationing… please sit down. (visiting your family for the holidays counts.)If you spent any money going to the movies, buying DVD’s or music CDs… (A huge waste of money, resources… including oil… and a multi-million-dollar diversion of funds that could be used to feed starving people in the third-world)…Go ahead, sit down.If you live in a nice neighborhood with home owner’s association fees… monthly fees larger than what many people in this world make in an entire year…. sit down.If you own dog, cat, or other fuzzy companion for whom you buy food that many humans on this planet would kill for…. sit down.I could go on, but I doubt anyone is left standing. I havent’ yet mentioned that your annual internet bill could feed hundreds.Was this video wasteful? Yeah. Was it entertaining? Meh… But before you get all self-righteous, please consider your own excesses. Because the makers of that video bought a turkey for a stupid prank, someone in the turkey-supply-chain gets a paycheck with which he can feed his own family.Air Force One costs 181 kilobucks per hour to run. That doesn’t include security, the presidential limo, and legions of secretaries, gophers, and support staff. That’s what we spend when the president goes golfing or takes his wife for an evening out in Chicago…. and you’re worried about some nerds and a single turkey?How many people could we feed on the money saved if the president simply sent out for Pizza?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219925",
"author": "Enjoyslife",
"timestamp": "2010-11-27T23:11:57",
"content": "I loved it!I can think of a few times I might have considered thermite for that one turkey that was taking foooreevveerr to get done!Great Turkey-Day gift, thanks!Now about the responses….. talk about funny!!!!The outrage that someone in the USA might be wasting a resource.?. Ha Ha Ha… that defines the USA! The world can starve as long as we are comfortable and got my many TOYS to make WAR with!!!Love the concerns about those TERMITE, I suspect most spell-checkers do not contain the spelling for THERMITE.Anyway can’t wait for Yule time. Perhaps a rocket propelled Xmas tree that lights itself up before take off? or a self unwrapping present?Thanks again!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220052",
"author": "Harvey",
"timestamp": "2010-11-28T03:50:05",
"content": "I can’t believe people whined and complained. Cool things happen, when people wonder what would happen if… Then actually try it out, and see what happens. Yeah, so most of the time, it’s not quite as awesome as our imagination, but it was fun trying anyway. What were you guys hoping for anyway? Maybe you can talk a neighbor into deep-frying a turkey in his garage sometime…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.365279
|
||
https://hackaday.com/2010/11/24/the-quest-to-build-a-better-stairmaster/
|
The Quest To Build A Better Stairmaster
|
Mike Szczys
|
[
"home hacks"
] |
[
"AT89C51RD2",
"exercise",
"heart rate",
"stairmaster"
] |
[Eric Feldman] likes to use the Stairmaster in his exercise routine during the winter months. But apparently the exercisers that are designed for mere mortals don’t satisfy his need to climb stairs really, really, quickly. After mastering the upper speed limits of some top-of-the-line equipment he contacted the company asking if there was a way to unlock the software-imposed speed restriction. They laughed at him; a motivation that he used to
build his own that is already five times faster
. He calls it the Stairmonster, and after being tested at over 500 stairs per minute that name is quite fitting. It’s got a nice interface for choosing an exercise program and recording data from his routines. It uses an AT89C51RD2 along with a quadrature decoder and a heart rate monitor module that talks to a chest strap worn during each session. A 320×240 touchscreen gives feedback on the routine, which is altered to achieve targeted heat rates for optimum results. Nice job [Eric]!
| 22
| 22
|
[
{
"comment_id": "217979",
"author": "John Harrison",
"timestamp": "2010-11-24T23:39:16",
"content": "I had thought that he had hacked an existin unit, but no. He designed and built this thing from scratch. Impressive. Nearly as impressive as 500 steps a minutes?!?!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217983",
"author": "James",
"timestamp": "2010-11-24T23:45:33",
"content": "Thought the point of steppers was to be a fairly sustained slow action, not a mad all-out sprint.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217984",
"author": "Hirudinea",
"timestamp": "2010-11-24T23:49:35",
"content": "Bulidn a machine that feeds me donuts then I’ll be impressed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218053",
"author": "m",
"timestamp": "2010-11-25T01:56:30",
"content": "8.3 steps per one second… no sweat:http://www.youtube.com/watch?v=nb4-WJmPEHE",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218058",
"author": "vonskippy",
"timestamp": "2010-11-25T02:03:54",
"content": "Nice build but meh – it’s not speed but weight. Just start carrying more and more weight at a reasonable pace is a WAAAAAAAAAAAAAY better workout then just sprints.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218077",
"author": "o",
"timestamp": "2010-11-25T02:51:28",
"content": "“heat rates”That would be “/heart/ rates,” Mike…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218104",
"author": "Chris",
"timestamp": "2010-11-25T03:13:50",
"content": "vonskippy > It depends on what you want to improve : cardio/strengthI would like to see a video of him doing the 500 steps with the machine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218126",
"author": "pete",
"timestamp": "2010-11-25T04:15:26",
"content": "The build is good the exercise isn’t. As vonskippy said add more weight not speed. Doing it at this speed means you don’t do the exercise properly similar to how people use too heavy free weights and throw their back in to let them curl it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218127",
"author": "pmac",
"timestamp": "2010-11-25T04:18:34",
"content": "@vonskippy depends what you’re training for",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218142",
"author": "Spork",
"timestamp": "2010-11-25T04:56:30",
"content": "@pmac,Please let me know what you’re training for that requires this exercise. As long as it’s not “injury” I’m interested to know.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218152",
"author": "Sariel",
"timestamp": "2010-11-25T05:03:12",
"content": "@Sporktraining to run up the stairs as fast as you can from the zombie pandemic of 2012.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218168",
"author": "Jason Knight",
"timestamp": "2010-11-25T05:31:29",
"content": "Another of those exercise machines I’ll never understand — but then I actually will ride my bicycle in the dead of winter and live in the upstairs half of a duplex.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218250",
"author": "JEDITALIAN",
"timestamp": "2010-11-25T07:25:38",
"content": "i’m gonna need video evidence before i can believe that anybody can move each leg up and down 4 times in 1 second, which=8 steps. and the range of motion from down to up has to be ~1ft.but this thing looks like it doesnt really give you any exercise. i thought stairmasters were pneumatic in nature. maybe not nowadays, but if it is moving your feet for you, isnt that kindof like one of those japanese handjob machines, doing all the work for you, only likely result being human injury?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218254",
"author": "JEDITALIAN",
"timestamp": "2010-11-25T07:29:49",
"content": "ah, it all makes sense now. i clicked the link.. average steps/min: 51, and that’s an alternator not a motor! even i can do 51 steps/min. i was beginning to think this guy was ‘the flash’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218255",
"author": "JEDITALIAN",
"timestamp": "2010-11-25T07:32:23",
"content": "ok. last post for me. obviously these are not full-size steps he’s talking about, more like oscillations.. “Higher speed than the 4400CL (currently, I’ve run my unit past 500 steps per minute, which I cannot sustain for any real length of time. The 4400cl can run up to 100 similarly sized steps per minute. I estimate that this unit can safely work at a human-ly unachievable speed of 2000 steps per minute)”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218301",
"author": "Chris",
"timestamp": "2010-11-25T09:39:59",
"content": "Very impressive design and build.I too was ready to question his motives and the wisdom of such an exercise, until I noticed the creator competes in Stair Climbs for charity. And he places very well too!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218349",
"author": "nutwiss",
"timestamp": "2010-11-25T10:38:53",
"content": "Can I just mention he’s actually training for competitive stair climbing. Hence no need for extra weight etc.That is actually running up buildings for events such as this:http://www.youtube.com/watch?v=RteYU7uGQzI",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218453",
"author": "Eric Feldman",
"timestamp": "2010-11-25T14:50:00",
"content": "Hi allI had no idea this was going to get posted at all…To answer a few questions:1) the length of one of my “steps” is about 11 inches, depending on where in the stride it lands. It varies about half an inch upwards or downwards. (parabolic explanation on my site)2) my routine includes 10 lbs of ankle weights for part of my run at a more reasonable speed.3)the purpose of this is to make me more competitive in stair competitions and to get good exercise (and it was fun to build — I learned a LOT). I do a lot of cycling and this has definitely improved my cycling as well. In my opinion, this is harder than cycling, and I don’t have to watch out for cars.4)I did some wattage calculations with some multimeters, I’ve seen the resistors taking in ~45 amps at 14v. I plan on putting a wattage integrator in in the next few weeks so I can add up and get [k?]wH measurements.I plan on posting some video of it running later today.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218562",
"author": "tim",
"timestamp": "2010-11-25T18:58:46",
"content": "500 steps a minutes…that is a monster. I can only do about 100-110 right now",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218793",
"author": "pmac",
"timestamp": "2010-11-26T00:49:10",
"content": "@Spork: how about speed and stamina. and what @Sariel said.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219475",
"author": "Almost_There",
"timestamp": "2010-11-27T00:59:47",
"content": "Wouldn’t it have been easier to hack the Speed Sensor and divide it’s output pulses in half with a small Micro Controller?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219777",
"author": "Eric Feldman",
"timestamp": "2010-11-27T16:57:11",
"content": "Easier? maybe. More fun? no. Much more expensive? yes.Also, their alternator and resistor packs are much smaller than mine. Would have had to replace those. I also wouldn’t have been able to write all the software I wanted for it, either.Indeed, it was the first thing i though to do before i found out the cost of one of these things…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.292669
|
||
https://hackaday.com/2010/11/24/double-the-hertz-double-the-pleasure/
|
Double The Hertz, Double The Pleasure
|
Joseph Thibodeau
|
[
"hardware",
"Tool Hacks"
] |
[
"bandwidth",
"dso",
"oscilloscope",
"Tekway"
] |
[tinhead] has opened up a Tekway DST1102B oscilloscope and doubled its bandwidth to 200MHz,
sharing his work in the eevblog forum
. This is great news to anyone who is looking for a faster sampling rate but can’t afford the high-end models. Mind you, for a lot of us even these Hanteks and Tekways are hard to afford but there are
more appropriate options
for the ramen-dependent hacker.
In the hacking guide [tinhead] includes comprehensive information on the different scopes he originally considered (a
Rigol
,
Atten
and
UniTrend
) before settling on the
Tekway
, as well as links to regional distributors for the hackable scope. Good quality benchtop units are invaluable for development and troubleshooting, and it pays off to understand their inner workings. It’s heartwarming to know that even the tools of hacking can be hacked.
| 41
| 41
|
[
{
"comment_id": "217967",
"author": "grenadier",
"timestamp": "2010-11-24T23:04:34",
"content": "Now all he needs to do is make it play DOOM and we’re golden.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217975",
"author": "tinhead",
"timestamp": "2010-11-24T23:29:28",
"content": "actually it is ARM9 linux 2.6.13 based box,so many things are possible … you caneven still use it as DSO.Original idea behind this hack was to getsome bw for free, but you can do otherthings too.There is 16bit bus and user i/o available,or even touch screen connector.I don’t think that someone will use caminterface connected to DSO, but anethernet addon or logic analyzer addoncould make sense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217978",
"author": "bob",
"timestamp": "2010-11-24T23:37:16",
"content": "this was featured ages ago,now it doesnt do anti-aliasing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217980",
"author": "Simon",
"timestamp": "2010-11-24T23:40:44",
"content": "A nice middle ground between a brand-name scope and an unpleasant USB thing is the Chinese GW-TEK stuff. I got a brand new colour 2-trace 25MHz DSO from Emona for $400.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217986",
"author": "D_",
"timestamp": "2010-11-24T23:54:36",
"content": "I’m still having a hard time believing a software change will turn an oscilloscope with guaranteed specs at 100 200MHz into a scope that with will perform as well as the oscilloscope guaranteed specifications of the 200MHZ. In the case of the Teckway there are differences between the scopes other than bandwidth. Those differences may not matter in some instances,but there will be instance where it may matter. No doubt the pros are aware of it, but it’s going to be some of the electronics hobbyists and hackers that may not be, and will nor understand why their oscilloscope is leasing them in the wrong erection, assuming they know/recognize enough enough everything is not adding up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218017",
"author": "fluidic",
"timestamp": "2010-11-25T00:32:46",
"content": "@D_There are cases where it would work, you just don’t get any certainties.Say a company is producing a few similar models. It’s sometimes cheaper to only produce the higher bandwidth version and get the others either in software or maybe by leaving off a daughter board that adds some function. Then when you’re doing your QC run, test at the highest bin first until you get enough that pass spec to meet sales. After that, you take the ones that don’t pass highest-bin spec plus any leftovers that passed or weren’t tested, and test them at the next spec down. And so forth.Happens with CPUs and GPUs quite frequently due to things like extra cores and pipelines. If the process only gives you good results at some statistical margin, you can always disable the bad ones and call it a lower spec part. The result still meets the spec it’s sold at, but it’s often way more cost effective than engineering and producing N different models from scratch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218061",
"author": "therian",
"timestamp": "2010-11-25T02:16:14",
"content": "The was a lot of reports on EE forums from people feeling greedy and getting Tekway instead of more trusted brand, a lot of Tekway scopes lose a channel or two after couple weeks of usage",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218068",
"author": "john",
"timestamp": "2010-11-25T02:37:50",
"content": "@therianyeah, you probably Rigol-shop owner, do you?But you know what, i give you a chance, show me a single poste with broken tekway scopes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218122",
"author": "walid",
"timestamp": "2010-11-25T03:50:38",
"content": "@theriando you have a link? I haven’t found anything on google about.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218124",
"author": "grenadier",
"timestamp": "2010-11-25T04:08:48",
"content": "Or two? Well there’s a 500 dollar brick right there. I myself have a tektronix TDS210 DSO and it works quite well. The only drawback is because it was made when LCDs were new, the screen is a little slow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218125",
"author": "BiOzZ",
"timestamp": "2010-11-25T04:09:59",
"content": "there has to be some drawbacks right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218333",
"author": "CalcProgrammer1",
"timestamp": "2010-11-25T09:58:11",
"content": "I just got a Rigol DS1052E today, though I haven’t used it yet. It’s a 50MHz scope that can be hacked to 100MHz in software, but there seems to be issues with the new firmware blocking this. It cost $400 (actually $380 from eBay) and is really a nice looking scope for the price (50/100MHz, 1GSamples/sec, dual trace, color LCD, USB storage, etc). I haven’t had a chance to test it but I bought it based on the multitudes of great reviews on eevblog and other forums.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218347",
"author": "smoker_dave",
"timestamp": "2010-11-25T10:36:43",
"content": "D_I designed a product (RFID access control system) at a previous employer which the board of directors / marketing team told me to cripple in firmware . This was so they could sell two variants; a “budget” version and a “full” version. The only difference between the two products was a few blocks of extra C code.So I guess this kind of thing happens more often that you would think!Cheers,",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218420",
"author": "nap",
"timestamp": "2010-11-25T12:41:43",
"content": "it’s called price discrimination. if you create several similar products at different prices, every customer pays the maximum price he’s willing to pay. otherwise, you’d have some people paying less than they could and some others not buying at all (much less profit). Of course this strategy requires retarded buyers, not a problem at all on planet earth, we have plenty.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218448",
"author": "Jorge",
"timestamp": "2010-11-25T14:37:14",
"content": "Quote from D_“…and will nor understand why their oscilloscope is leasing them in the wrong erection…”Got something else on your mind? :pAs other have said, its extremely common to see company design a single product and then cripple it in software to make several different products. In a lot of cases it would be much more expensive to actually design and build separate devices with different specs than to just make the differences in software.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218525",
"author": "David Robertson",
"timestamp": "2010-11-25T17:37:55",
"content": "“great news to anyone who is looking for a faster sampling rate”. Bandwidth is not the same as sample rate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218526",
"author": "antonye",
"timestamp": "2010-11-25T17:40:50",
"content": "> In a lot of cases it would be much more expensive to> actually design and build separate devices with different> specs than to just make the differences in software.Even Ford do this with their engines – same engine, different fuel maps means different power outputs and different prices, especially in their Transit van range.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218539",
"author": "therian",
"timestamp": "2010-11-25T18:08:28",
"content": "@john@walidI will not put any effort in proving anything, I was kind enought to share such warning and it up to you how to use this information",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218599",
"author": "tinhead",
"timestamp": "2010-11-25T20:10:22",
"content": "@therianafaik there is no single incident with Tekway DST1xxxB series DSOs. In case i’m wrong, you will get 100 bucks from me, just give me a link. fair enough?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218797",
"author": "therian",
"timestamp": "2010-11-26T00:59:23",
"content": "@tinhead here Russian guy “q123” felt greedy and get DST1202B instead of Rigol (he end up with rigol later on), on the bottom of the page you can see results for yourself and suplier actually told him its common problem.So when I receive my weed money ?http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=ru&tl=en&u=http%3A%2F%2Fradiokot.ru%2Fforum%2Fviewtopic.php%3Ff%3D10%26t%3D32414",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218800",
"author": "therian",
"timestamp": "2010-11-26T01:02:35",
"content": "By the way his Tekway scope was already replacement for the first one which had problem calibrating itself",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218831",
"author": "tinhead",
"timestamp": "2010-11-26T03:00:44",
"content": "@therianyou don’t think i will send you money only because someone deep in russia got issues with “flying parts” :PBut to be very honest, such kind of issues are typical for early devices, in todays world many companys are “testing” devices at user costs.Tekway is producing since 11 months these scopes, and Hantek “rebranded” since two. However it seems they already learned a lot (now there are small heatsinks on ADCs – i bet this was the issue in russia, and maybe shippment? who knows), firmware is light years better than 6 months ago, PC software can be installed without these .ini issues. As i got my device, the first thing was to check power supply and air flow inside, and of course i found things which i didn’t liked.Tekway’s answer was:“The components we used in this DSO is industrial level, so these conponents can be worked well under the temperature you tested. For example the AD9288-100, work well under 75°. Of course we have reserved the interface for fan supply, but not used in this series. We have considerd about the situation when the DSO running without the fan. It could be worked well. But we will add the fan in the future if our clients need”Well, as EE i don’t trust other engineers, so i installed small fan and never got any heating issues (for me Tekway’s answer was like “yes, maybe, but we have to produce cheaper”). I’m glad to see i was right.I don’t want to make these scopes better than they are, but they not bad (just read eevblog review for details) – and for “money savers” they hackable.P.S. – i said “afaik”, but you know what, i will ask Tekway to send me the 100 bucks, hell i told them months ago that this is potential issue, and now i got busted :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218926",
"author": "therian",
"timestamp": "2010-11-26T04:18:09",
"content": "Where this guy located is irrelevant, he ordered scope from China anyways and it was couple month ago so the model is up to date. I didn’t Google to find someone with broken scope, I was participating on that forum and his experience stick in my memory.“you don’t think i will send you money only because someone deep in russia got issues with “flying parts” :P”Russians sometimes say it fly instead of it breaks(think of it as soul of dead device fly out)Promising something you don’t intend on delivering makes you unworthy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218943",
"author": "tinhead",
"timestamp": "2010-11-26T04:49:52",
"content": "yeah ,i saw your nick on the forum. The translation is a bit crippled and my russian is not good enough anylonger, from what i see he ordered in germany? (pinsonne)Whatever, now we can only do some speculations, we both don’t know the serial numbers so hard to say what he got.I wish i could follow up on this (I’m in contact with them), but without serial number or at least information where he bought it will be not possible. Don’t get me wrong, i don’t care about this particular single-user issue, it is just because i have a small fight with Hantek/Tekway right now (about GPL Copyright Infringement).In case you can get something from “q123” send me a PM on eevblo forum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218962",
"author": "therian",
"timestamp": "2010-11-26T06:17:35",
"content": "looks like “q123” with total of 10 messages only joined forum for advice on purchase and haven’t returned back since. And his photos are too low resolution to read serial from it, but one showing the board looks like have written venison 1.2 or 1.5 perhaps 1.7 on it.I dont know what cause his first unit to fail self calibration but second unit losing a channel most likely due to relay failing to stay fully closed so only small capacitive patch left for signal to go.Curious what Copyright Infringement you talking about, is it about Hantek/Tekway copping Rigols GUI?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219228",
"author": "tinhead",
"timestamp": "2010-11-26T16:43:13",
"content": "@therianregards “q123” device: on the pics he posted there is 1.00.2 version number on power supply – exact the same as on my very early device (SN xxx000911). So let summarize: we have single issue (and not multiple like you said i your first post), unknown user – we don’t know what the user did within “first week of using”, we know he is using breadboards so probably beginner, we don’t know what he measured (broken cable maybe?), etc … so finally didn’t really matter, he send back the DSO and will probably never answer these questions.Rigol GUI ??, you cant compare apples and oranges, Rigol have small display with low resolution and single window UI – Hantek/Tekway wide-screen display, with large resolution, two window UI. Just read eevblog, there are enough pictures.I said “GPL Copyright”, it is about embedded linux on the DSO, once again just read eevblog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219258",
"author": "therian",
"timestamp": "2010-11-26T18:22:16",
"content": "How is that single issue if a single person went thought 2 broken units ? It was yours idea and you set simple rule : “afaik there is no single incident with Tekway DST1xxxB series DSOs. In case i’m wrong, you will get 100 bucks from me, just give me a link. fair enough?”I provided you with 2 incidents, fair enough ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219282",
"author": "tinhead",
"timestamp": "2010-11-26T18:45:17",
"content": "@therianyou are real moron… just read what you posted.———————————————-The was a lot of reports from people feeling greedy … a lot of Tekway scopes lose a channel or two after couple weeks of usagePosted at 6:16 pm on Nov 24th, 2010 by therian———————————————-if you don’t know what “a lot of” means, well google for it. Single man, deep in russia got DSO which at deliver time was ok – week later broken. The guy is a beginner and we have no informations what he did. You know him ? I don’t, and probably if i would be an beginner who killed a DSO, i would probably tell the same “i did nothing, it just happens, this my second unit, all bad, i’m innocent, i did disassembled the device but never played with it”.Btw, even if he would be EE professional you can always get a bad device, lol, even two. Look here, this is definitely better brand than Rigol:http://www.mikrocontroller.net/topic/198807For those who don’t speak german – this guy bought Lecroy 44Xi, after 3 days broken, repaired, then again broken and so on …So what now, let’s buy Rigol from “therian” because Lecroy is bad brand ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219313",
"author": "therian",
"timestamp": "2010-11-26T20:14:24",
"content": "you called me a moron but you yourself assumed there is perfect manufacturing process exists and set yourself a bet. All you asked is a link to broken device, you did not specify where person should live what version of device it was and what experience of user is, so all BS you saying now is irrelevant to original bet:“there is no single incident with Tekway DST1xxxB series DSOs. In case i’m wrong, you will get 100 bucks from me, just give me a link. fair enough?”You own words…And I see no point of discussing which brand is good or bad, why scopes fail, bla bla bla since it all irreverent to bet",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219320",
"author": "therian",
"timestamp": "2010-11-26T20:21:08",
"content": "By the way due to customs they pay almost twice in Russian for same electronics we have in US, and average income is much lower too so I will highly doubt that beginner would buy new digital scope instead of cheap second hand soviet analog oscilloscope.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219327",
"author": "therian",
"timestamp": "2010-11-26T20:31:07",
"content": "Also I want to point out that it is immature to start kicking and screaming when you lose",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220186",
"author": "MoJo",
"timestamp": "2010-11-28T11:02:46",
"content": "The thing that would concern me is that the modded ‘scope might not be as accurate as it was. Since you use a ‘scope to debug and find problems the last thing you need is errors creeping in due to the ‘scope itself.I have a 100MHz GW Instek ‘scope and am very happy with it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220320",
"author": "tinhead",
"timestamp": "2010-11-28T13:45:04",
"content": "@MoJoAccuracy depends on clock domain and ADCs. All my test cacdidates have AD9288, except UNI-T with almost “no-name” ADCs. All are using low cost XO and ADC clock over FPGA PLL – same for GW Instek.There is GW Instek review, you can compare ithttp://welecw2000a.sourceforge.net/docs/Hardware/GW_Instek_GDS-1152A.pdfWhat i not like on GW-Instek is analog signal routing (over board-to-board connectors) but it this class of DSOs didn’t really matter that much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "396622",
"author": "Ot",
"timestamp": "2011-05-21T15:55:38",
"content": "@tinheadThe Russian report of over heating, and causing channel 1 failure was strange as reported. Showing the two pics of of 2 channel square waves. The second pic showed channel 1 distortion, caused by overheating? If you look at the timestamps on the pics, the distortion is 21:57, and it clears up at 21:59, how is overheating the cause? And the difference is 2 minutes not 10 minutes. Doesn’t make sense. Looks like a probe problem to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "396681",
"author": "tinhead",
"timestamp": "2011-05-21T22:37:43",
"content": "well, actually it can be everything, from “monday” device , over QC issues up to user problem.For those who not following the thread on eevblog:In the meantime the hack has been improved, actually we on 250Mhz -3db (with proper HF active probes – don’t expect too much from cheap ones).I found a way to manipulate the digital bw filter, allowing the user to setup the max bw, however max. usefull from ADC point of view is 450Mhz allowing measurments up to 400Mhz in single chan mode.I developed (and published proj. details) Ethernet adapter card, only 10mbit but that’s suficient for most things.Hantek/Tekway did changed hardware revision, adding some nice features , like SDCARD slot on board, phone/mic connectors and even spare place for I2S audio codec, extended i/o port giving chance for even more hardware hacks.It is now more Samsung S3C2440 dev board with DSO functionality :)Another user is developing custom SDK, currently he is able to access display/memory data, manipulate menu structure (to add own functions into the fw). He haven’t posted yet, but is close to do it.So yeah, this platform (DSO) makes still enough fun to play with it – and of course use as DSO.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "396760",
"author": "Ot",
"timestamp": "2011-05-22T03:31:04",
"content": "@tinheadHow do we know before we buy the scope that we will get the latest hardware revision? Is there a question to ask the distributor so I can be sure? I know he won’t open the scope to check.I am very glad I didn’t jump onto the ADS, I was looking at the ATTEN specs and the LCD resolution that was holding me up so I was still researching and found the hack threads. Great Thank you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "396761",
"author": "Ot",
"timestamp": "2011-05-22T03:36:54",
"content": "I think the next smart move for Han/way would be to use the Samsung AMOLED Super+ for the very fast access times.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "396834",
"author": "tinhead",
"timestamp": "2011-05-22T11:34:29",
"content": "@Otactually all official dealers in EMEA/NA will have the latest hardware revision, you can find the old HW revision only if you buy from chinese dealers.The dealer have to answer the question, in principle easy because system information is showing 0Xxxxx for old hw and 1005Xxxx for new hw.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "403867",
"author": "Ot",
"timestamp": "2011-06-10T12:13:24",
"content": "Picked up the 5102 from Morton which was on sale ths holiday. The high res display is very nice and the menu doesn’t eat up the screen because there is plenty of width. One thing that is irratating though is that the built in Help menu doesn’t have word wrap so its quite awkward to read since the line breaks occur anywhere within the word. This would have been a rather easy function to include in the firmware. Maybe Chinese characters are words so it doesn’t matter to them but Western languages need word wrap to display properly. The “a” charater isn’t kerned properly either and the index has a dozen typo errors. But overall I’m very happy with this scope. @Tinhead, is this part of the firmware accessable to fix these issues or do we have to wait for Hantek to jump on it some day?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "405868",
"author": "tinhead",
"timestamp": "2011-06-15T00:03:58",
"content": "@Otthe Help is based on SQLite database, directly in root fs you will find Help.dbAll you have to do is to add word wrap into the SQL content …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "406175",
"author": "Ot",
"timestamp": "2011-06-15T16:36:49",
"content": "@tinhead,I haven’t opened up the scope but regarding the Help.db, you are suggesting that I insert the CRLFs where necessary based on how many characters fit on a line? My thoughts on the approach was to call a function in the LCD write routine and keep track of a character counter, looking at if the next word would exceed the max characters allow for the screen width.“,”“.”” ”CRLFIs there another way you were thinking of?It would be a pain to manually count the characters in each line to see where a CRLF need to be inserted.I don’t have any experience in SQLite, but I looked at the manual, I didn’t see anything that would make things simpler to implement.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.235147
|
||
https://hackaday.com/2010/11/27/automated-chicken-coop-door-is-solar-powered/
|
Automated Chicken Coop Door Is Solar-powered
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"chicken",
"coop",
"door",
"phototransistor"
] |
[Fileark] has been busy with the hacks lately. This time around he’s built a
solar-powered chicken coop door
that opens in the morning, and closes at night. A single motor slides the door open and closed using a loop of spring-loaded string. There are limiting switches on either side of the door jamb to ensure proper positioning. The grey box seen above houses the hardware; a regulator for the solar panels perched atop the roof line, a battery from a broken UPS, and the driver board itself. An AVR chip running the Arduino bootloader monitors a phototransistor to detect sunup and sundown, driving the door motor appropriately using a pair of relays.
Check out the demonstration and hardware overview after the break. [Fileark] was inspired to build his after seeing
the alarm-clock coop door
. We don’t know if he got a chance to look at
the vertical coop door
, but we think his less mechanically-complicated solution is just as elegant.
[youtube=http://www.youtube.com/watch?v=fLNiZuKgPtM&w=470]
| 12
| 12
|
[
{
"comment_id": "220113",
"author": "Amos",
"timestamp": "2010-11-28T08:28:21",
"content": "Coops are out of date, anyway. Chicken tractors are much more efficient.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220189",
"author": "MarkF",
"timestamp": "2010-11-28T11:16:37",
"content": "Great project….the noise doesn’t scare the living crap out of the chickens?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220371",
"author": "steve",
"timestamp": "2010-11-28T16:08:24",
"content": "I hate to be the negitive nacy to start off the arduino bashing, but couldn’t you do the same thing with a voltage divider on each side of the charging diode and a voltage comparator? not only does this not need a uc it doesn’t even need the phototransistor; you know since the voltage from the solar cell will be lower then the battery voltage when the sun is down?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220491",
"author": "Ben Wright",
"timestamp": "2010-11-28T23:15:41",
"content": "Great project – clean install and enclosure. My only sugestion would be to upgrade the motor to a surplus power window motor for a car. These motors are quiet and some have a bracket to mount to a flat surface. The solar panel array looked a bit excessive for your needs. I don’t know what the wattage you used was but your load is minimal with the motor only running for 30 seconds a day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220875",
"author": "bunedoggle",
"timestamp": "2010-11-29T16:24:00",
"content": "@steve – By using an Arduino he now has the ability to add additional functionality like temperature dependency or an optical sensor to detect if a chicken is in the way or any number of other cool things.And the Atmel micro was only a few bucks. Probably not much more than the components to build a solid state circuit version, but infinitely more versatile.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220885",
"author": "lwatcdr",
"timestamp": "2010-11-29T17:04:13",
"content": "@steve.What about cloudy days? Atmel micros are really dirt cheap and offers some flexibility and expandability Maybe a fan to cool the coop, an alarm, or even and XBee so the coop is networked.Even if you do none of that an AVR runs only a few dollars so why not?Now if he had a robot that gathered the eggs and feed and watered them as well…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220893",
"author": "Filear",
"timestamp": "2010-11-29T17:20:12",
"content": "@Steve, that’s actually a really good idea comparing the battery voltage to the solar. There are a lot of possible ways to achieve the same effect. I finally chose the Arduino clone ($10.00) for a few reasons. 1. I wanted to wait a period of time after the sun went down (10 min), this is also the dead band so it wont accidentally flutter and open/close the door when a cloud passes by ect. 2. I built in a 7 second pulse to the motor so even if my limit switches break the motor will stop fairly quick and not burn up. 3. I set different light level for closing and opening for instance the door can close when the LDR is reading 200 but open when it is 600 (More deadband)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220896",
"author": "Filear",
"timestamp": "2010-11-29T17:24:49",
"content": "By the way, a not so smart chicken decided it was a good idea to roost in the doorway the other day, my motor is so weak that she wasn’t injured and the 7 second pulse that closes the door (stops even if the limit switches don’t work) saved my equipment and the chicken. She decided it was still a fine place to sleep even though it was a bit cramped.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "326424",
"author": "Jordan",
"timestamp": "2011-02-07T23:18:14",
"content": "wow, that’s awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "333094",
"author": "Mary",
"timestamp": "2011-02-14T20:05:29",
"content": "What happens if the door closes before all of the girls have gone in for the night?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "386220",
"author": "GWDeveloper",
"timestamp": "2011-04-26T12:21:50",
"content": "Mother Earth News is running a contest for automatic chicken coop doors. You should enter this into it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "386661",
"author": "Thomas",
"timestamp": "2011-04-27T05:59:07",
"content": "Having raised chickens as a kid, it would have been nice to automatically let the chickens out and have them locked away at night – damn raccoons.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.156611
|
||
https://hackaday.com/2010/11/27/surprisingly-simple-magnetic-card-spoofer/
|
Surprisingly Simple Magnetic Card Spoofer
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"attiny2313",
"coil",
"eletromagnet",
"magnetic stripe",
"spoofer"
] |
[Craig’s]
magnetic card spoofer
is both simple and brilliant. There are two parts to spoofing these cards and he took care of both of them. The first part is getting the actual card data. He designed the spoofer board with a header that connects to a card reader for doing this. The second part is the spoofing itself, which is done with an electromagnet. As with
past spoofers
, he wrapped a shim with enamel-coated magnet wire. An old knife blade was picked for its thickness and
ferromagnetism
. This magnet is driven by an ATtiny2313 which stores the data, and is protected by a transistor driving the coil. There were a few design flaws in his board, but [Craig] was able to get the same track data out of the spoof as the original card despite the LED being used as a protection diode and an ‘aftermarket’ resistor on the transistor base.
| 5
| 5
|
[
{
"comment_id": "219794",
"author": "Squirrel",
"timestamp": "2010-11-27T18:04:37",
"content": "Now this would be interesting to see as a business card…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219851",
"author": "JEDITALIAN",
"timestamp": "2010-11-27T20:48:35",
"content": "a business card to hand to daniel ocean?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219979",
"author": "Stranger...",
"timestamp": "2010-11-28T00:38:23",
"content": "Little John Connor had one of those years ago :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220008",
"author": "xorpunk",
"timestamp": "2010-11-28T01:39:22",
"content": "The thing john connor had brute forced CCN+PIN on the mag-bank reading slot, which wasn’t ever possible cause their was no way to control authentication cycling from the slot and it has always been custom protocols over leased lines that controlled the firmware.Every bank in the world has been using a MagnePrint authentication protocol for decades now which is why this hardware isn’t a problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220985",
"author": "bunedoggle",
"timestamp": "2010-11-29T20:36:06",
"content": "This is at least the second mag card spoofer I’ve seen that uses a “shim” wrapped in transformer wire. I STILL don’t see how this could spoof the multiple tracks of data on a mag strip.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.408595
|
||
https://hackaday.com/2010/11/26/arduino-electronic-speed-control-explained/
|
Arduino Electronic Speed Control Explained
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"brushless",
"electronic speed control",
"esc",
"motor"
] |
You can salvage some nice motors out of optical drives but they can be tricky to control. That’s because brushless DC motors require carefully timed signals used in a process called Electronic Speed Control (ESC). [Fileark] built and ESC using an Arduino and
has a couple
of
posts
explaining the concept and demonstrating how it works. His test circuit uses six 2N2222 transistors to protect the Arduino from excessive current. You can see six red LEDs above which are inline with the base of teach transistor. This gives visual feedback when a transistor is switched, a big help for troubleshooting your circuit.
Once you’ve seen the videos after the break you’ll probably come to the conclusion that this is an impractical way to use a brushless motor. But it is a wonderful way to learn about, and experiment with the concept of ESC. Chances are you can get your hands on an old optical drive for free, making this an inexpensive weekend project.
[youtube=http://www.youtube.com/watch?v=ZL0YqvxwTKc&w=470]
[youtube=http://www.youtube.com/watch?v=LRZXTG6SEEM&w=470]
| 29
| 29
|
[
{
"comment_id": "219402",
"author": "minipimmer",
"timestamp": "2010-11-26T22:16:50",
"content": "Very cool project. I was shocked because actually I was doing something quite similar this week. My idea was to build a small platform to teach control theory and what I do is to control a three wire computer fan from an arduino using transistors scavenged from a broken PC power supply to drive the motor and to buffer the pulse encoder signal from the fan. I should write something about this one of these days because I want to document it for the workshop. I’ll tell you as soon as I do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219409",
"author": "Gonzalo",
"timestamp": "2010-11-26T22:35:09",
"content": "“you’ll probably come to the conclusion that this is an impractical way to use a brushless motor”Why do you think that? You don’t have to use an external controller IC, you can even remove the discrete transistors and use some uln2003 to manage all at once.Regarding the program, it should really be written using timers and interruptions, to reduce the cpu usage to the minimum",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219410",
"author": "bzroom",
"timestamp": "2010-11-26T22:36:18",
"content": "legit",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219436",
"author": "Afroman",
"timestamp": "2010-11-26T23:52:34",
"content": "As best as I can tell, the reason why he is having so much trouble getting the motor up to higher speeds is because there’s no system for detecting the position of the rotor so he can power the next coils at just the right moment. Usually people do this by sensing the back emf generated by the coils not in use, then making the switch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219446",
"author": "zool",
"timestamp": "2010-11-27T00:20:41",
"content": "useful",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219466",
"author": "Will.Brunner",
"timestamp": "2010-11-27T00:41:22",
"content": "I designed a shield for exactly this purpose. You can find the open source hardware and the (crude at this time) software at:https://code.google.com/p/threephase/I use this as a platform for developing motor control algorithms.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219506",
"author": "holycrap",
"timestamp": "2010-11-27T01:50:29",
"content": "This is such perfect timing.I have a shitload of these transistors lying around but haven’t been able to afford any ESCs to test out my new outrunner brushless motors.I had a few dual H-bridges lying around from sparkfun I was going to try and program to do this, but I didn’t really have the energy to get around to it.This is super simple, easy, and cheap.A+++ thanks for the inspiration!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219520",
"author": "blue carbuncle",
"timestamp": "2010-11-27T02:33:44",
"content": "FSK tracking. Done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219524",
"author": "Chris",
"timestamp": "2010-11-27T02:45:33",
"content": "What about adding transitional steps where only one coil is active ?for example :100000110000010000011000001000…the rotation should be more precise, smoother and stronger. And maybe it can fix the buggy behavior at high speed.What do you think about that ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219533",
"author": "JDN",
"timestamp": "2010-11-27T03:07:47",
"content": "It’s a bit of a cheat I suppose but the optical drive the motor came from will also have the driver chip that does the back EMF measurement. Spec sheets are often available. Have your micro interface to that device instead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219552",
"author": "WestfW",
"timestamp": "2010-11-27T04:19:23",
"content": "This is exactly the sort of “experimental” study that I’d like to see more of. Though not without flaws, it demonstrates the sort of results you can get without going to extreme efforts…I’m a little surprised that the high-side drivers (+V – 2n2222 – motor) work well enough to get the motor to turn at all. Usually you use PNPs in that spot (with opposite drive voltages…)The microcontroller used in many commercial RC ESC units is apparently an ATmega8; a processor very similar in capabilities to an Arduino (in fact, the mega8 was used in some of the earlier arduino boards.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219605",
"author": "zing",
"timestamp": "2010-11-27T06:15:39",
"content": "@ChrisThat would work for a unipolar stepper, but this is a 3 lead brushless. If you only turn on one of the transistors, no current will flow through the motor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219692",
"author": "Mihail121",
"timestamp": "2010-11-27T10:26:03",
"content": "Very cool project indeed, good sirs. I was in deep need for exactly that thing for my epic project. May the queen be with you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219697",
"author": "Nathan Zadoks",
"timestamp": "2010-11-27T10:43:29",
"content": "@WestfW It’s just the atmega168/atmega328 (arduino) with less RAM. So, basically they are an Arduino.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219698",
"author": "bogdan",
"timestamp": "2010-11-27T10:43:51",
"content": "The schematic is rather flawed. He should have used a different kind of drivers, PNP transistors for the high side would have been better, but they are not enough. The motor from the CD drive is actually powered form 12V in order to achieve such speeds. Feedback is also given through the hall effect sensors in the motor that are not used here, but are necessary in order to use the motor at higher speeds.There are also no protection diodes used.The best chance of making the motor spin correctly with minimum work would be to use the actual driver from the cdrom and control it with a micro controller.I is a proof of concept, but it has errors. Errors which beginners will just propagate…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219739",
"author": "Tim",
"timestamp": "2010-11-27T13:45:22",
"content": "Its not going fast because he is going from 1ms to 0 delay. He should be using delayMicroseconds()",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219754",
"author": "Nomad",
"timestamp": "2010-11-27T14:53:31",
"content": "@bogdan: i don’t think, there are any hall sensors in a CD drive. Just like there aren’t any in an HDD (i took some SCSI-HDDs apart). They are controlled via the back-EMF which you can measure on the third rail (read: the one that is not switched to ground or VCC)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219768",
"author": "Anonymoose",
"timestamp": "2010-11-27T16:08:23",
"content": "Lol @ Cat 5 cable – its so springy for wiring",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219774",
"author": "bogdan",
"timestamp": "2010-11-27T16:20:34",
"content": "@NomadAll the cd-rom drives that i opened had hall sensors inside the motor. I suspect this has one as well and you may see that in the rather wide ribbon cable connecting to the motor(you need just 4 wires for the motor itself).It is true you can do things with back emf, but maybe back when cd drives were made that was too complicated.You are also forgetting that hard drives have the advantage of having to run at a single speed and the motor has a constant load.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219775",
"author": "bogdan",
"timestamp": "2010-11-27T16:24:06",
"content": "Here is what i typically saw in cd drives:http://www.ziva-vatra.com/index.php?aid=26&id=RWxlY3Ryb25pY3M=",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219819",
"author": "Roberto",
"timestamp": "2010-11-27T19:19:11",
"content": "I am confused at the schematic. Did he use npn transistors for both the positive a d negative rails?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219972",
"author": "bogdan",
"timestamp": "2010-11-28T00:07:59",
"content": "@RobertoThat’s right. It woks like this too, that is not a problem. But not correctly, the motor is powered from the 5V supply which is only good for low speed/load.Also, this trick will not work when powering from 12V.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220039",
"author": "Mike",
"timestamp": "2010-11-28T03:00:54",
"content": "You should use PNP transistors or P-Channel MOSFETS for the high-side. You are wasting 0,7V with those NPNs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220083",
"author": "Tomasito",
"timestamp": "2010-11-28T05:18:43",
"content": "I did this 1-2 years ago. Sadly, we need some kind of feedback (back-emf or hall sensors) to trigger the coils. It’s have been discussed in arduino forums.Without it the motor just drives crazy at certain speeds, I and some others tried it on several motors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220121",
"author": "therian",
"timestamp": "2010-11-28T09:23:52",
"content": "post back-emf sensors circuit",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220898",
"author": "Fileark",
"timestamp": "2010-11-29T17:32:23",
"content": "The motor did have hall effect sensors but I blew them out while figuring out which wires went to the coils so I didn’t get to play with them much!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "587780",
"author": "No Patience For Warranties",
"timestamp": "2012-02-23T18:38:42",
"content": "Since we’re talking BLDC motors from CD drives, they are designed for much lower voltages than 12V mentioned above. I did some poking around an open DVD drive some time ago and I believe the motors are only energised from the 1.9V rail in the drive – there’s virtually no load once the disk starts spinning. Also, I believe they respond much better when PWM is involved else they are prone to skipping steps, especially without feedback. There’s a video illustrating the effect herehttp://elabz.com/bldc-motor-with-arduino-circuit-and-software/with a very simple schematic and the Arduino code with PWM.I was actually hoping to use one of those CD spindle motors as a sort of a 36-steps per revolution stepper. Not having much luck with that as yet tho…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1076958",
"author": "tissit",
"timestamp": "2013-10-16T11:55:15",
"content": "404",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2593385",
"author": "Mohit",
"timestamp": "2015-06-04T15:35:18",
"content": "Is there any way to run Bldc motor without ESC ? I want to run Turnigy XK1222 at maximum speed all times. I don’t want to use receiver and transmission.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.054381
|
||
https://hackaday.com/2010/11/26/thanksgiving-turkey-quadcopter-shenanigans/
|
Thanksgiving Turkey Quadcopter Shenanigans
|
Mike Szczys
|
[
"Wireless Hacks"
] |
[
"bomb",
"pumpkin pie",
"quadcopter",
"thanksgiving",
"turkey"
] |
The challenge: can you build a flying turkey that drops pumpkin pie bombs? That’s the question that Utah Aerials asked themselves and
they did manage to make it happen
. Of course they’re not starting from scratch, but adding a little holiday cheer to an existing quadcopter in the form of a spray painted turkey fuselage. The cheapest pumpkin pie they could find was hung from the copter with care, and dumped thanks to a servo motor. Check the video after the break to see if they were able to hit their balding-bullseye or not.
Seems like
the wicked witch music
should have been the background for that video.
[youtube=http://www.youtube.com/watch?v=SDGsr3B2H4s&w=470]
[Thanks Bill via
DiyDrones
]
| 9
| 9
|
[
{
"comment_id": "219352",
"author": "Steve",
"timestamp": "2010-11-26T21:34:12",
"content": "As god is my witness I thought turkeys could fly…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219395",
"author": "RM",
"timestamp": "2010-11-26T22:04:47",
"content": "Turkeys can’t fly. Arthur Carlson proved it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219428",
"author": "arjan",
"timestamp": "2010-11-26T23:01:36",
"content": "I just loved the flying ghost for haloween, but this turkey was useless. Sorry… It would be cool if looked like a turkey (not like a quadcopter), sounded like a turkey and moved like a turkey. (not like a quadcopter)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219471",
"author": "pork",
"timestamp": "2010-11-27T00:52:54",
"content": "“it’s gross pie… that’s Walmart pie right there”Lolz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219473",
"author": "Hirudinea",
"timestamp": "2010-11-27T00:58:02",
"content": "I can hardly wait till Christmas when they make Santa’s Sleigh drop fruitcake on that bald guys head!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219549",
"author": "Addidis",
"timestamp": "2010-11-27T04:12:44",
"content": "LMAo",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219706",
"author": "tronic",
"timestamp": "2010-11-27T11:25:40",
"content": "@Steve You are corret. While the domesticated turkeys often cannot fly, wild turkeys have no problems flying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219994",
"author": "spider21",
"timestamp": "2010-11-28T00:54:07",
"content": "well I know our turkeys can fly up to tops of trees, that is where the nest for the night, so nothing gets them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220019",
"author": "Trollicus",
"timestamp": "2010-11-28T02:00:28",
"content": "@ tronicSteve is quoting Mr Carlson from the show WKRP in Cincinnati(My home town!)here is a cliphttp://www.kewego.com/video/iLyROoafYtDe.htmlhere is the actual quote:http://www.youtube.com/watch?v=4FXSnoy71Q4",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.105069
|
||
https://hackaday.com/2010/11/26/ubertooth-board-for-bluetooth-experimentation/
|
Ubertooth Board For Bluetooth Experimentation
|
Mike Szczys
|
[
"Radio Hacks"
] |
[
"arm",
"bluetooth",
"cc2400",
"cortex-m3",
"lpc1758",
"ubertooth"
] |
Ubertooth Zero
is the first offering in [Michael Ossman’s] quest for a Bluetooth sniffing and hacking hardware platform. We’ve seen some of his hacks in the past, like the
build-in guitar tuner
and some
pink pager fiddling
. The Ubertooth dongle is his original design based around an LPC1758 ARM Cortex-M3 processor paired with a Texas Instruments 595-CC2400-RTB1 to handle the 2.4 GHz RF communications. Looking at the bill of materials shows a very low cost for the components at just under $30 (if you can get your hands on a PCB to mount them on). He’s written firmware as well as host code to help you up start pulling Bluetooth packets out of the air as quickly as possible.
What can you do with this? That’s up to you, but whatever it is you accomplish,
we’d like to hear about it
.
| 9
| 9
|
[
{
"comment_id": "219337",
"author": "MS3FGX",
"timestamp": "2010-11-26T20:49:23",
"content": "Well, you can count me in on this.If he manages to get this thing into production, he could make a lot of money. Commercial Bluetooth sniffers are insanely overpriced due to lack of competition.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219405",
"author": "Chaemelion",
"timestamp": "2010-11-26T22:23:38",
"content": "Wireless Bluetooth keyboard key-loggers anyone?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219438",
"author": "walt",
"timestamp": "2010-11-27T00:01:43",
"content": "ubertooth? why does everything have to have a silly name these days?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219525",
"author": "M4CGYV3R",
"timestamp": "2010-11-27T02:46:13",
"content": "It sounds like the name of some SyFy Original Movie. Can’t wait for ‘Ubertooth vs Dinoshark’ – I think that will be a good match-up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219550",
"author": "cantido",
"timestamp": "2010-11-27T04:15:02",
"content": "I think you can do sniffing with a CSR bluetooth module with modded firmware… the modules are ~$15 shipped and the firmware is online somewhere.The CSR chips have USB, SPI and bog-standard serial interfaces IIRC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219610",
"author": "mossmann",
"timestamp": "2010-11-27T06:41:57",
"content": "It is possible to sniff Bluetooth with hacked firmware on a CSR dongle, but that method requires prior knowledge of the target’s address. Project Ubertooth is the first low cost platform that allows passive monitoring of any Bluetooth traffic without such prior knowledge.Oh, and if you can’t give your project a silly name, why bother? ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219755",
"author": "mossmann",
"timestamp": "2010-11-27T15:07:08",
"content": "Yes, it is possible to sniff Bluetooth with a CSR chip with hacked firmware, but the solution requires prior knowledge of the target’s address. Ubertooth is the first low cost platform capable of passive monitoring of arbitrary Bluetooth devices without such prior knowledge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219762",
"author": "CC2400",
"timestamp": "2010-11-27T15:45:08",
"content": "Didn’t know this chip was compatible with blueooth, most of these radio ic’s only talk to themselves.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219899",
"author": "mossmann",
"timestamp": "2010-11-27T22:34:51",
"content": "The CC2400 is not fully compatible with Bluetooth. It supports Bluetooth’s modulation scheme (PHY), but its packet handling is incompatible (MAC). Fortunately that stuff can be handled by a separate microcontroller or a USB-attached PC in the case of Ubertooth.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.471103
|
||
https://hackaday.com/2010/11/26/roller-curtains-with-your-graphics-on-them/
|
Roller Curtains With Your Graphics On Them
|
Mike Szczys
|
[
"home hacks"
] |
[
"blind",
"curtain",
"fabric",
"ikea",
"shade"
] |
[Lenore] added a bit of customization to her office window hangings by
fitting roller curtains with custom printed fabric
. The treatment seen above is a $20
Enje roller blind
from Ikea but that logo is all
Evil Mad Science
. The weight at the bottom of the fabric uses a friction-fit plastic insert that can be stapled onto new material. Some fusible tape was ironed onto the sides to finish those edges, and the roller at the top has strong adhesive that remains for a second use after peeling off the original material.
A fabric printer was used to produce this rendition of shades. But we’d like to see some conductive thread added for a
f
abric-based
display
that can be rolled up when not in use.
| 5
| 5
|
[
{
"comment_id": "219290",
"author": "Addidis",
"timestamp": "2010-11-26T19:13:58",
"content": "‘A fabric printer was used to produce this rendition of shades. But “we’d like to see some conductive thread added for a fabric-based display that can be rolled up when not in use”.’This is a great idea, really like how more and more the crafty projects are being realized as foundations for tech projects.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219292",
"author": "Addidis",
"timestamp": "2010-11-26T19:19:40",
"content": "Wonder what happens when we mix the knitting machine , conductive thread, this, and Jeri Ellsworth’s home made Oled and phosphorescent’s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219301",
"author": "Editor",
"timestamp": "2010-11-26T19:39:05",
"content": "Interesting since when has a Roller Blind been called a curtain ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219302",
"author": "Kiwisaft",
"timestamp": "2010-11-26T19:42:33",
"content": "@Addidisthis ends up with curtainst, which you pull when you need light (=opposite curtains) yay XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219403",
"author": "Addidis",
"timestamp": "2010-11-26T22:18:03",
"content": "eh think more a monitor , so you black out the sunlight , and have a GIANT movie screen / monitor display.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.51447
|
||
https://hackaday.com/2010/11/26/dodecapod-to-offset-segway-as-futuristic-transport/
|
Dodecapod To Offset Segway As Futuristic Transport
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"dodecapod",
"legs",
"rider",
"segway",
"theo jansen",
"walker"
] |
Who doesn’t love
a 12-legged robot
, especially if you can ride it around work? You can watch this one running around the patio with rider perched atop it. The machine translation is a bit crude, but it seem this is based on the
wicked walking sculptures of [Theo Jansen]
. The rider can shift their center of gravity to control the walker, much like a Segway. We’d bet this makes for a rough ride on anything but a smooth level surface, but we’re fine with indoor use only. After all, you’ll need to be close to a charging station as this boasts 45 minutes of juice when transporting a 165 pound operator. See it scurry after the break.
[youtube=http://www.youtube.com/watch?v=U5dpGAw4cOU&w=470]
[via
Neatorama
and
PopSci
]
| 35
| 34
|
[
{
"comment_id": "219249",
"author": "svofski",
"timestamp": "2010-11-26T18:08:40",
"content": "(75 kg)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219268",
"author": "Imanoss",
"timestamp": "2010-11-26T18:32:28",
"content": "11.7 stone",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219270",
"author": "Digital",
"timestamp": "2010-11-26T18:39:01",
"content": "1 kurik",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219280",
"author": "bogdan",
"timestamp": "2010-11-26T18:42:55",
"content": "Very nice. I remember the design of the sculptures from a while ago.Still, the robot is rather noisy and impractical.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219286",
"author": "MrX",
"timestamp": "2010-11-26T18:54:28",
"content": "Sounds like a walking bomb :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219287",
"author": "Branno",
"timestamp": "2010-11-26T18:54:30",
"content": "Coool! I know what I want for Christmas…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219293",
"author": "Patrick (not the right-wing one)",
"timestamp": "2010-11-26T19:20:27",
"content": "I think it would probably be better as a transporter for heavy stuff rather than a people carrier. It’s slower than actually walking, but it could save you from having to carry a bag of concrete or something out on the job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219294",
"author": "Custos",
"timestamp": "2010-11-26T19:21:04",
"content": "Welcome to the next dolly, but with no wheels.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219315",
"author": "RadBrad",
"timestamp": "2010-11-26T20:17:18",
"content": "Amazing load carrying capacity!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219411",
"author": "DaemonsWithin",
"timestamp": "2010-11-26T22:36:48",
"content": "You wanna make it truly impressive? Scale it up and make a walking throne. Even the Demon Headmaster would be jealous! In all seriousness though, the wheelchair is in dire need of advancement…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219416",
"author": "localroger",
"timestamp": "2010-11-26T22:43:11",
"content": "Yes, I see this as a rough terrain dolly with really impressive carrying capacity. The high-stepping gait could deal with random terrain better than most designs I’ve seen. I think this thing could go most of the places an ATV can with a much smaller vehicle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219426",
"author": "JEDITALIAN",
"timestamp": "2010-11-26T22:57:09",
"content": "tiller-shoes.. at first i thought they were individual shoes, making for a mean face-kick",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219430",
"author": "rui",
"timestamp": "2010-11-26T23:08:29",
"content": "Man invented the wheel…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219435",
"author": "buffalo",
"timestamp": "2010-11-26T23:49:26",
"content": "Sweet sandals..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219447",
"author": "walt",
"timestamp": "2010-11-27T00:22:20",
"content": "i wouldn’t be wearing open toe shoes on this thing… or ever… because i am male.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219450",
"author": "psuedonymous",
"timestamp": "2010-11-27T00:25:53",
"content": "Here’s an (earlier? original?) version from UoL in 2008:http://www.youtube.com/watch?v=JCPlczI3k-c",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219467",
"author": "Drake",
"timestamp": "2010-11-27T00:43:26",
"content": "Saw this bot a long time ago. Any-who legs and such need to be sized up otherwise you’ll be stuck on the first out of place brick",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219514",
"author": "charliefreck",
"timestamp": "2010-11-27T02:10:45",
"content": "nice to see people adapting the work of Theo Jansen. …bringing it closer to practicality. he is absolutely brilliant, but i think quite mad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219621",
"author": "Necromant",
"timestamp": "2010-11-27T07:06:26",
"content": "Make it bigger, make it a chair and fine-tune to walk up and down the stairs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219639",
"author": "echodelta",
"timestamp": "2010-11-27T08:21:31",
"content": "I move pianos. Humm ? I think it can’t do stairs. If it goes over a stone all the pressure goes on that one foot, link, crank, ouch.Put soft rollers on the feet, back rubs anyone!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219783",
"author": "Drake",
"timestamp": "2010-11-27T17:23:03",
"content": "Lets make a bicycle version. 4 ft long legs. It’ll be all the rage at collages!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219933",
"author": "brainfart",
"timestamp": "2010-11-27T23:31:35",
"content": "Disgusting. I don’t want to see your smelly feet. Put on some decent shoes, or at least some socks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220041",
"author": "Bob",
"timestamp": "2010-11-28T03:01:51",
"content": "grow up, everybody has feet",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220102",
"author": "Ryan",
"timestamp": "2010-11-28T06:33:15",
"content": "Not everyone has them? ask a vet. this would make an awesome wheelchair alternative if scaled up.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "970379",
"author": "Eric",
"timestamp": "2013-03-05T02:26:03",
"content": "That was the first thing I thought when I saw it.",
"parent_id": "220102",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "220330",
"author": "robomonkey",
"timestamp": "2010-11-28T14:15:45",
"content": "AWWW CRAP, Replicators!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220364",
"author": "Addidis",
"timestamp": "2010-11-28T16:00:27",
"content": "wow that thing is noisy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220459",
"author": "Brett",
"timestamp": "2010-11-28T22:08:40",
"content": "Make it bigger and make it jump, then I’m impressed. But as of now, its a cool concept.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220493",
"author": "cafeine",
"timestamp": "2010-11-28T23:17:27",
"content": "hmmmm…another clever idea would be to just walk with your feet you lazy bastard! :Paside from the above it’s a cool machine and congrats for the execution and complication, but too noisy and too slow for it to have a selling point…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220494",
"author": "Collin",
"timestamp": "2010-11-28T23:20:54",
"content": "such a cool little machine, it does sound kind-of scary though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220511",
"author": "raith",
"timestamp": "2010-11-29T00:21:39",
"content": "the noise is terrifying, I want one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220843",
"author": "Rob",
"timestamp": "2010-11-29T14:45:53",
"content": "Good idea. I just don’t think it would last over a years time with that much load on it. Keep up the good work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220993",
"author": "krith",
"timestamp": "2010-11-29T21:16:38",
"content": "Craptastic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237921",
"author": "Tpic",
"timestamp": "2010-12-03T06:07:49",
"content": "For all you haters out there; this is a great idea in its beginning stages. Like others, I can see a heavy material transporter or an advanced mover for people that have lost the use of their legs (ie Veterans, para & quadraplegics). Does it need some work? Sure, but instead of tearing down somebody that put the time and effort to build the prototype, do something better! But of course not, you haters would rather play games on your computers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "282218",
"author": "lc",
"timestamp": "2010-12-11T05:08:06",
"content": "what does this do that wheeled transport cannot?I understand the point of something like big dog, since that is geared towards practical terrain coveragebut this seems to be literally a step backwards?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.584751
|
||
https://hackaday.com/2010/11/24/building-a-bandwidth-meter/
|
Building A Bandwidth Meter
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"analog",
"arduino",
"bandwidth",
"gauge",
"meter",
"perl",
"router"
] |
Here’s an
analog bandwidth meter
made to look like an old pressure gauge. It’s actually new, but the paper showing the graduated scale was stained in a bath of black tea, then dried in an oven to give it an aged appearance. We think it’s quite effective.
The dial itself is a volt meter driven by an Arduino in much the same way as
the multimeter clock
. Bandwidth data is pulled from a Linux router, filtered down to the target data using ‘grep’, and sent over the serial connection by a Perl script. Since the meter itself is just waiting for serial data, alterations to the router’s scripting make it easy to represent a count of unread emails, tweets, or whatever data your code can scrape.
[Thanks Ben]
| 15
| 15
|
[
{
"comment_id": "217874",
"author": "CGross",
"timestamp": "2010-11-24T20:36:12",
"content": "Lifehacker takes from HAD, HAD takes from Lifehacker about 5 days late.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217877",
"author": "ladz",
"timestamp": "2010-11-24T20:44:17",
"content": "Why not just send a constant serial data stream to a buffer, filter, and op-amp?Sending a stream of 0x00 will have a higher RMS voltage than 0xFF.seems much simpler.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217880",
"author": "JeremyC",
"timestamp": "2010-11-24T20:57:12",
"content": "That is awesome! Nice job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217894",
"author": "Anon",
"timestamp": "2010-11-24T21:19:23",
"content": "Now that’s a beautiful thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217911",
"author": "kristian",
"timestamp": "2010-11-24T21:49:28",
"content": "@ladz: idk, that sounds like a bit of a hack-solution ;)sending data over serial to arduino can also mean sending data via usb, so there’s not necessarily a serial port involved here.i checked the writeup, just to be safe: “output to the serial port emulated by the FTDI chip on the Arduino”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217913",
"author": "matt",
"timestamp": "2010-11-24T21:53:14",
"content": "SWEET",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217926",
"author": "Harvie",
"timestamp": "2010-11-24T22:16:25",
"content": "It should be even better if the device was connected directly to ethernet cable (ethernet can pass through it) between router and modem… well we need to find a way how to simply determine bandwith from ethernet cable… i guess there’s at least way to count packets per second or some similar – almost analog solution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217987",
"author": "Simon",
"timestamp": "2010-11-24T23:55:09",
"content": "Looks like a current-limiting resistor is needed between the Arduino PWM pin and the transistor. Perhaps everything getting hot is part of the steampunk effect!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218172",
"author": "Evan",
"timestamp": "2010-11-25T05:40:34",
"content": "What would be cool is to link this to cpu useage rather than bandwidth.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218291",
"author": "ConsciousFlesh",
"timestamp": "2010-11-25T09:11:03",
"content": "Nice work with the meter , but adding the diode across the coil ,and driving it with IRL series MOSFET should work better.@Harvie . There is a way , at least with every good router or switch – the SNMP protocol . I made such device to work with my Cisco 2610 a year ago using a Wiznet chip and an AVR microcontroller .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218441",
"author": "Friction57",
"timestamp": "2010-11-25T13:59:25",
"content": "Can anyone provide a solution for this where instead of an analog meter, it’s connected to a digital number display (like an alarm clock display) that will show you bandwidth use across any spectrum?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219105",
"author": "mrlinconnu",
"timestamp": "2010-11-26T10:53:04",
"content": "Hi everybody,Is it possible to give more details on how bandwith value are recovered from the PC ?It’s wrote that datas are pulled from a linux router ?Is it possible to get the same function from a basic provider XDSL modem ? Or in this case the solution is it to use software programmes ?In a windows how can I get the real time bandwith usage ?Many thanks for some links…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219340",
"author": "DarkFader",
"timestamp": "2010-11-26T20:54:18",
"content": "And then you get a feeling that someone is downloading just at the moments you’re not looking :)I will try to compile istatd for my linksys router. Now if only I could subtract the bandwidths… would be nice to know what my dad and brother are using. I already can see which sites they visit :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "264451",
"author": "skytee",
"timestamp": "2010-12-07T12:28:00",
"content": "Actually, the gauge is old. Manufactured in 1908.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "291279",
"author": "Name (required)",
"timestamp": "2010-12-27T12:42:25",
"content": "Nice, this was also shown on the 27c3.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,329.698177
|
||
https://hackaday.com/2010/11/24/interface-up-to-12-servos-using-arduino/
|
Interface Up To 12 Servos Using Arduino
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"Joystick",
"python",
"serial",
"servo"
] |
[Brian] is using an
Arduino to control multiple servo motors
. This is nothing new and has been happening since the earliest days of Arduino. But rather than develop a project and share it, [Brian] did a fantastic job of making the code scalable, readable, and even explained how the different parts work.
His code listens for serial commands and manipulates the motors accordingly. He wrote a Python script using pyserial which talks to the Arduino. As an example, he uses a joystick to send data for X and Y axes as well as pitch and roll. Want to know how those serial communications work? He explains that in detail. He also outlines the process of scaling up from the 4 servo demo to 12 servos on a standard Arduino. Sounds like it might be time to build your own version of
a mouse-controlled Lynxmotion arm
using the tools [Brian] has put together.
| 5
| 5
|
[
{
"comment_id": "217845",
"author": "Hackius",
"timestamp": "2010-11-24T19:43:57",
"content": "I hadn’t seen this before but it seems like this is from 2008!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218463",
"author": "Navic",
"timestamp": "2010-11-25T15:39:19",
"content": "This is a great project! I use this code for many of my robotics projects, very awesome work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218587",
"author": "Alex",
"timestamp": "2010-11-25T19:43:33",
"content": "Wasn’t this already posted on here a while ago?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "224589",
"author": "Brian W.",
"timestamp": "2010-12-01T02:17:20",
"content": "Yep, this code is originally from 2008 — I know because I wrote it!! (Although it has been updated several times.) It never ceases to amaze me how many hits this project gets, and how many people have used my code to jumpstart their own projects.Thanks to Hack a Day for (re)posting this, and thanks to everyone for their great comments and support. It’s nice to know your work can benefit others. OSS rules!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "991245",
"author": "Brian D. Wendt",
"timestamp": "2013-04-10T00:50:25",
"content": "This project has moved tohttp://teamprincipia.wordpress.com/2008/04/08/arduino-python-4-axis-servo-control/. Thanks for all your support!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.183681
|
||
https://hackaday.com/2010/11/24/sparkfun-free-day-2011-now-with-gambling/
|
SparkFun Free Day 2011: Now With Gambling
|
Mike Szczys
|
[
"News"
] |
[
"free day",
"sparkfun"
] |
SparkFun has just announced
a Free Day for 2011
. Last year was
the first time they decided to give away $100,000
in the form of $100 credits that
melted down their servers
and made the rest of the world (you know, the non-geek sort) ask what SparkFun was when it started trending on Twitter, Google, and every other form of digital communication.
Well, they’re doing it again this year, albeit quite differently. Mark your calendar for Thursday, January 13th at 9am Mountain Standard Time. But it’s not as simple as having your cart pre-filled and trying to bum rush the checkout pages. Now you’ve got options; take a loyalty payout of $10 for each year that has passed since you registered an account with them, or gamble for a $100 credit. The latter involves answering ten questions, rewarded with $10 for each correct answer and penalized $3 for each wrong answer. If you don’t finish all ten before the money runs out you get zip.
There’s several bits of good news here. First,
they just picked up a new rack of servers
which should help keep the website from crashing. Secondly, the prize money has been ramped up by %50 to a total of $150,000. And finally, if you choose to answer the trivia questions, $2 is being donated to charity for each correct answer. So study up on your electronic theory and you can help others while trying to help yourself.
[Thanks Diego]
| 52
| 50
|
[
{
"comment_id": "217808",
"author": "BiOzZ",
"timestamp": "2010-11-24T18:22:18",
"content": "i bet every business teacher in the world is crying right now XDbut i loved free day 2010made an entire project with no out of pocket expense and thats unheard of in the usa XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217815",
"author": "Diego Spinola",
"timestamp": "2010-11-24T18:36:57",
"content": "I couldn’t get anything last time, but I loved to watch the server meltdown show =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217816",
"author": "Sariel",
"timestamp": "2010-11-24T18:43:41",
"content": "I’m with Diego. But I’m totally getting up early for this one around!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217820",
"author": "Mad Dog",
"timestamp": "2010-11-24T18:59:13",
"content": "$150K for about $1mil in free advertising. Sites like this always talk about not promoting products and advertising in posts. But here we are… Its ingenious!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217825",
"author": "lobster",
"timestamp": "2010-11-24T19:12:25",
"content": "I made it out last time with some loot. I think I went over by 20 or 30. I heard some people did it and then turned around and put it on ebay? Or was that just a rumor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217834",
"author": "e91",
"timestamp": "2010-11-24T19:22:49",
"content": "At least they require you to know some electronic theory. Last year people just heard ‘free stuff’ and later sold their loot on ebay.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217837",
"author": "monkeyslayer56",
"timestamp": "2010-11-24T19:24:11",
"content": "ya i missed last years because of the server meltdown, cart was full… page no load… maybe i can get in on this years :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217838",
"author": "gripen40k",
"timestamp": "2010-11-24T19:29:20",
"content": "I really like that they are going to change stuff up this time around. Make it so that their actual customers benefit from this, and anyone who knows a thing or two about what they sell.@lobster: there were quite a few people who heard “free stuff” and tried to take advantage without knowing what they were even getting. Whether they used the stuff or sold it on ebay I don’t think we’ll ever know.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217842",
"author": "razorconcepts",
"timestamp": "2010-11-24T19:40:56",
"content": "I checked ebay a week after free day and there was a significant amount of Sparkfun items with obscure and incorrect descriptions. I guess there were some people who just took advantage of it (it was posted to SlickDeals as well…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217843",
"author": "Fallen",
"timestamp": "2010-11-24T19:41:20",
"content": "This is much better IMO. Assuming it’s trivia about electronics etc, this should get rid of the hoardes of people that were in it just for free stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217868",
"author": "Philip",
"timestamp": "2010-11-24T20:22:20",
"content": "Im just waiting for Osgeld… ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217871",
"author": "BP",
"timestamp": "2010-11-24T20:27:14",
"content": "How long will it take for someone to post the answers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217878",
"author": "phishinphree",
"timestamp": "2010-11-24T20:46:35",
"content": "Funny, I just finished placing an order today. I think I’ll go for the loyalty option as I registered in dec ’05. Wish I could use it towards batchPCB instead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217879",
"author": "ryowens84",
"timestamp": "2010-11-24T20:52:18",
"content": "@BP: We’re smarter than you’re giving us credit for.Good luck everyone!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217881",
"author": "Paul",
"timestamp": "2010-11-24T21:02:30",
"content": "@razorconceptsSad but those deal forums are full of some really greedy people. Same thing happened with the evalbot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217896",
"author": "mic",
"timestamp": "2010-11-24T21:24:05",
"content": "I like that there is a loyalty option, because I know the site probably won’t load. =(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217898",
"author": "Anon",
"timestamp": "2010-11-24T21:27:21",
"content": "At least I can buy their whole “give back to our customers” this time. Last year was just complete BS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217901",
"author": "Osgeld",
"timestamp": "2010-11-24T21:37:14",
"content": "“Im just waiting for Osgeld… ;)Posted at 12:22 pm on Nov 24th, 2010 by Philip”why? If you want to bang your head on a desk while thousands of other people are taking a quiz at the same time on untested servers hooked up to a no name local ISP for a chance to save some money on retardedly jacked up, copied and pasted right out of the data sheet lego bricks, by my guestmaybe it will knock some sense into you",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217903",
"author": "Gert",
"timestamp": "2010-11-24T21:38:49",
"content": "I envy you US Citizens. You may not have a good health care, fair taxes or a clean slate with the world. But you do have way better shops for electronic hobbyist.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217909",
"author": "neurdy",
"timestamp": "2010-11-24T21:46:02",
"content": "Just a heads-up from a SparkFunner… as far as the questions go, the $10 from every correct answer gets credited to your account instantly, so even if you don’t finish in time you will still have the money from every correct answer (minus any incorrect answers)!Good luck everyone!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217912",
"author": "Paul",
"timestamp": "2010-11-24T21:52:57",
"content": "Anon:I still cant comprehend that people are actually upset about last year.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217914",
"author": "dirtyoldman",
"timestamp": "2010-11-24T21:55:09",
"content": "i suspect wikipedia’s ser\\/ers might take strain…damn, the button between the c and the b on my keyboard just stop working",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217915",
"author": "dirtyoldman",
"timestamp": "2010-11-24T21:55:42",
"content": "stopped*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217921",
"author": "Anon",
"timestamp": "2010-11-24T22:09:38",
"content": "I’m not upset about what happened, I’m upset that Sparkfun came back with they felt they “were successful at giving back to there customers” when clearly it was a big lottery taking over by the deal seekers.Like razorconcepts said, ebay was full of SFE gear a few weeks after, and did you notice SFE never released a “what did you build with Free Day stuff” like they said they were going to? I wonder why. Maybe because very few actual hackers got free stuff?I still cant comprehend that people are actually this blind to what happened last year.The fact they are testing people this time around proves they know it went all wrong last year, or else they would do the same thing, no?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217928",
"author": "razorconcepts",
"timestamp": "2010-11-24T22:18:35",
"content": "They should limit it to people who have made at least two orders, that way they are truly giving back to the customers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217929",
"author": "Paul",
"timestamp": "2010-11-24T22:29:15",
"content": "@AnonThe fact they are testing people this time around proves they know it went all wrong last year, or else they would do the same thing, no?They are trying to avoid people being whiny little crybabies like last year. People are still butthurt about it. I am surprised they are even doing it again this year, with the reaction from a lot of people I am surprised they just forget it and donate the money to a charity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217930",
"author": "Anon",
"timestamp": "2010-11-24T22:33:22",
"content": "@PaulYeah, when companies screw up or act deceitful, their customers tend to whine about it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217931",
"author": "Bill D. Williams",
"timestamp": "2010-11-24T22:34:28",
"content": "I never win anything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217948",
"author": "therian",
"timestamp": "2010-11-24T22:40:54",
"content": "no way I doing it again, screwing my mood for whole day worth more than 100$",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217969",
"author": "dext0rb",
"timestamp": "2010-11-24T23:13:30",
"content": "@Anon,@therian:some of you people are so fucking lame. cannot believe you think a company is ‘deceitful’ because you didn’t get $100 in FREE stuff. I tried like hell to get some stuff for a project but wasn’t lucky enough. Did i cry? no. Did i think i got duped? no. Have i ordered from sparkfun in the past and will i continue to order from them? yup.nobody is fucking ‘blind’, Anon-guy. Sparkfun tried something and they learned their lesson – they let EVERYONE in on the action. Is that deceit? I don’t think so. You’re just bitter that you didn’t get anything, because you are so special and unique, you deserve the free product. YOU deserve it, not me. YOU. only YOU. You apparently ‘don’t care’, but you write like you’ve got a giant chip on your shoulder.@Osgeld:what an ego you have.Fuck, can’t stand people in the real-world, and can’t stand people online anymore, either. The negative little shits cry the loudest and simply drown out any trace of positive attitude. Time to ‘opt-out’ of this whole farce of existence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217997",
"author": "Anon",
"timestamp": "2010-11-25T00:18:47",
"content": "@dext0rbbesides your lack of people skills, you seemed to misread my point. Here, let me repeat:“I’m not upset about what happened, I’m upset that Sparkfun came back with they felt they “were successful at giving back to there customers” when clearly it was a big lottery taking over by the deal seekers.”IF SFE had said from the beginning and to the end that this was just a big lottery, try your luck; I would have been fine with that. I don’t get upset every time I don’t win the state lottery. But the state lottery isn’t running around claiming that they’re “giving back to it’s loyal customers” either.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218021",
"author": "chuckt",
"timestamp": "2010-11-25T01:05:53",
"content": "It was labor day. Users stayed up the morning before to sit at their keyboards and labor at a product which was impossible to get for the average person so Sparkfun could get free advertising.Did it work? They got their name out but I haven’t bought from them since and haven’t felt the need to buy from them ever again.They haven’t done anything for me so I don’t owe them anything. Even people who told me about it didn’t win anything and haven’t talked about them since.I couldn’t get the site to move before free day.Relationships are reciprocol or complimentary and when I can’t get the server to move on free day then this offer for publicity means all for Sparkfun and few people and none for me and most of the people. It means they don’t have a relationship with most or all of the people. It means only they benefited at getting free advertising at the expense of the person who sat there stupidly at the computer for hours and didn’t get anywhere.Here is a plan. How about giving people products at cost or with free shipping. Instead of gouging people for .35 cents for tact switches, why not give them to people for four cents where other sites sell them for? How about helping the customer who actually buys something?There is no help for students who want to start a robotics club because most students in high school don’t work and don’t have money from mom and dad.Do you know what my boss does? My boss buys a lot of product before the price increase from the supplier takes effect. It is like printing money and sellers who don’t help out their customers once and a while are just taking advantage of them in my opinion. In other words, those customers who sat for hours at a computer terminal were working at getting something. It is called free labor for advertising. You sit at a computer while your chances are nill and it only benefits Sparkfun. You work; Sparkfun benefits. Sparkfun gets the product for less so they have to be making a killing to be able to give stuff away and when you buy their products, you are paying for the next free day so people can labor at their keyboards to give Sparkfun free advertising while most of you get nothing.Sparkfun, you lost a customer for “free”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218029",
"author": "mengineer",
"timestamp": "2010-11-25T01:19:35",
"content": "I couldn’t even get on their site last year but no sweat, still kept doing business with them. It wasn’t a major shock to see people took the $100 credit and just turned around and sold everything just to make a profit, there’s always going to be people with alternative motives. But a lot of loyal customers and newcomers did get a chance to start a project that they probably wouldn’t have otherwise. The fact that SFE is making this years free day more about the electronics student/enthusiasts and less of a free for all for people trying to profit off of others good will is even better. You either need to have done business with them for some time, or have knowledge of electronics, which in it’s own will keep most abusers away, but not all. Most will probably take the question gamble in order to score a bigger credit while at the same time have SFE make a substantial donation to a good cause. Either was not only are they taking care of customers this year, they’re also helping out those who deserve it by making donations.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218066",
"author": "therian",
"timestamp": "2010-11-25T02:24:47",
"content": "@dext0rb if it was a lottery I would had no problem with that, but it simply didn’t work and frustrated most people. It was similar to a wallet on the street with a fishing line attached to annoy anyone bending for it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218267",
"author": "Wes",
"timestamp": "2010-11-25T08:01:30",
"content": "I hate to be that guy, but percent signs go after the digits.Nah, I take it back. I don’t hate it that much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218462",
"author": "Anonymouse",
"timestamp": "2010-11-25T15:35:43",
"content": "You need to prepare a linux kernel in advance which has its maximum retransission telay set to 500ms and a high retransmission counter.This is handy to have if you ever need to visit a site that is onder DDoS or just heavily loaded.I tried this at last years free day, and could get pages within 5 to 10 seconds, but didn’t order anything as I didn’t need anything at that time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218484",
"author": "Philip",
"timestamp": "2010-11-25T16:28:02",
"content": "why? If you want to bang your head on a desk while thousands of other people are taking a quiz at the same time on untested servers hooked up to a no name local ISP for a chance to save some money on retardedly jacked up, copied and pasted right out of the data sheet lego bricks, by my guestmaybe it will knock some sense into youPosted at 1:37 pm on Nov 24th, 2010 by OsgeldI wont be entering, I have better things to do. I just enjoy your rants at sparkfun, it breaks up a tedious day ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218570",
"author": "netrix",
"timestamp": "2010-11-25T19:10:42",
"content": "@chucktjust because you and your 2 other lame friends don’t shop there anymore doesn’t mean it didn’t work. 50% growth speaks for itself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219317",
"author": "dukeofmuffins",
"timestamp": "2010-11-26T20:18:32",
"content": "I’m not so mad at sparkfun as I am at the a**hats that bought the goods to resell. I saw some of those listings, and the prices were often the same or higher than retail. If anyone bought that crap, even if it was to save a few bucks, poo on them. Even if the goods were cheaper, I’d rather live knowing that some ignorant sod has a pile of microcontrollers he knows nothing about and nobody will buy. THOUGHT he was gonna make a quick buck. But people did buy them. And the world keeps on turning.I like the thought of this new system, so I’m done being burnt toast. Let’s see how it goes and save the new round of flaming for afterwards.How about a simple captcha for each order submission attempt?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303451",
"author": "phishinphree",
"timestamp": "2011-01-13T17:14:55",
"content": "Woot! just got my $50 via loyalty option. Thanks sparkfun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303455",
"author": "jeff-o",
"timestamp": "2011-01-13T17:20:26",
"content": "Wow, how’d you get through? I’m getting nothing but connection timeouts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303467",
"author": "phishinphree",
"timestamp": "2011-01-13T17:34:15",
"content": "somehow one of my 5 tabs loaded. I doubt I could have gotten to all the questions with the load. I had to reload after clicking the loyalty option for about 10 mins before i got my confirmation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303475",
"author": "jeff-o",
"timestamp": "2011-01-13T17:38:09",
"content": "Hmmm, well then. I was going to try out their questions since my loyalty option would only get me $20. But I’d happly take $20 over the nothing I’m getting at the moment!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303485",
"author": "borkbork",
"timestamp": "2011-01-13T17:50:27",
"content": "Yep, took my $20 and ran. Looks like they are starting to piece together the rubble of their servers and get something running again.yay sparkfun",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303515",
"author": "djrussell",
"timestamp": "2011-01-13T18:16:48",
"content": "i’m getting nothing but endlessly loading web pages.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303519",
"author": "phishinphree",
"timestamp": "2011-01-13T18:18:50",
"content": "I would have answered the questions had I known there was still $ available 2.5 hours into it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303539",
"author": "jeff-o",
"timestamp": "2011-01-13T18:54:33",
"content": "I managed to click the “quiz” button, but it died again afterward. At the time (about 30 mins ago) only about 15% of the money had been claimed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303550",
"author": "djrussell",
"timestamp": "2011-01-13T19:09:43",
"content": "i got the first question to load but it errors out after i submit my answer.“After leaving his LectroCandle on all night Billy’s 1000mAh lithium-polymer battery has lost all of its charge. Billy has to get the battery fully charged before he goes to bed tonight so he plugs it into his LiPoly USB Charger. If the USB Charger charges the battery at 100mA then how long will it take to fully charge the battery?”10 hours1 hour11 hours100 hoursand now i get this. :( it’s dead. all the money is gone.“Free Day is a wrap, the quiz is done! Here’s a rundown of how you did:Well that’s a bummer :( You didn’t qualify for any free money this time around.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303566",
"author": "phishinphree",
"timestamp": "2011-01-13T19:22:02",
"content": "It can be pretty aggravating pounding on f5 all morning and getting nowhere. With so many people doing it, I would think it boils down to luck of the draw.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "303569",
"author": "sev",
"timestamp": "2011-01-13T19:25:40",
"content": "Wasted an hour trying to play this game. I was going to order the inventors kit a few days ago, and thought I would wait for Free Day to get a discount. But this was frustrating enough that I’m going to take my biz elsewhere! Thanks guys, been real!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.135191
|
||
https://hackaday.com/2010/11/24/meggycade-when-handheld-pixel-gaming-isnt-enough/
|
MeggyCade: When Handheld Pixel Gaming Isn’t Enough
|
Mike Szczys
|
[
"handhelds hacks"
] |
[
"arcade",
"cabinet",
"game",
"meggy jr",
"pixel"
] |
[Bomber Punk]
built his own arcade cabinet
, but you won’t find any MAME games here. He made the enclosure to house
a Meggy Jr.
8×8 pixel graphics game console. Proper coin-op buttons and a joystick replace the stock tactile switches that come with the kit. [Bomber Punk] has also added a lighted coin slot. A three-cell battery pack powers the beast, with a programming port to one side so that different games can be loaded from a PC. We’d like to see a processor upgrade that would allow multiple games to be stored on a stand-alone system.
Take a look at the video after the break, it’ll bring a smile to your face.
[youtube=http://www.youtube.com/watch?v=yiiA_OVhYjs&w=470]
[via
Evil Mad Scientist Laboratories
]
| 12
| 12
|
[
{
"comment_id": "217765",
"author": "jensma",
"timestamp": "2010-11-24T17:03:30",
"content": "“This Video contains copyrighted material”I just hate it :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217776",
"author": "tomas",
"timestamp": "2010-11-24T17:12:20",
"content": "FYI: copyright + background music = not available outside the US.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217778",
"author": "Josh",
"timestamp": "2010-11-24T17:15:43",
"content": "Seriously – ditch the copyrighted BGM on vids liek these. It even mentions a speaker….. which we can’t hear because of the BGM. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217779",
"author": "M4CGYV3R",
"timestamp": "2010-11-24T17:16:54",
"content": "@tomas: Not available in the US either. You can’t embed most videos with copyright music in them.Just one more way that the RIAA and MPAA love to say “Fuck You” on a daily basis.Show them the same love: boycott copyrighted music (or steal it if you must).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217780",
"author": "?",
"timestamp": "2010-11-24T17:22:32",
"content": "Yup, it sure sucks. Gets me thinking every time: they don’t need no publicity in them third-world countries of Europe.Protip:http://creativecommons.org/legalmusicforvideos",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217781",
"author": "bomberpunk",
"timestamp": "2010-11-24T17:23:30",
"content": "this thing is popping up on all kinds of websites!i will create an alternate video with original music. i’m also a musician. :)cheers,michale m. (bomberpunk / judas ghost)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217803",
"author": "RadBrad",
"timestamp": "2010-11-24T18:06:56",
"content": "Let me change the tone…. nice project, cheers!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217804",
"author": "Daid",
"timestamp": "2010-11-24T18:11:10",
"content": "Video plays on youtube in the netherlands :DFun project, I didn’t think 8×8 pixels would have something playable to offer. But it has.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217806",
"author": "Mihail121",
"timestamp": "2010-11-24T18:13:32",
"content": "Kinda funny how many people don’t know how to use proxies. Amazing work, creativity rampage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217865",
"author": "Addidis",
"timestamp": "2010-11-24T20:15:28",
"content": "wow that music sucked lol. Cool cabinet",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217872",
"author": "zool",
"timestamp": "2010-11-24T20:33:25",
"content": "nice but maybe you could use a 16×16 for programming bigger games toonot sure if you’d have to add some electronics to do that, probably",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218577",
"author": "bomberpunk",
"timestamp": "2010-11-25T19:23:42",
"content": "here’s the quiet version for those who weren’t able to watch the original:http://www.youtube.com/watch?v=y1UobLAwxKE",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.365616
|
||
https://hackaday.com/2010/11/23/vga-interfacing-avr-microcontrollers/
|
VGA Interfacing AVR Microcontrollers
|
Caleb Kraft
|
[
"Microcontrollers",
"Video Hacks"
] |
[
"AVR",
"vga"
] |
[Lucidscience] is back again, this time showing us how to
push data to a VGA monitor from your AVR project
. It turns out that it is pretty simple, requiring only n open port and a few resistors and diodes. Well, it is that simple for the most basic version which gives you 56×60 pixels. Of course he couldn’t live with that and had to expand. Version 2 outputs 240×240 resolution and has additional sram and a double buffer making animations smoother and flicker free. As usual, the project is quite well documented with photos of the entire build process and schematics for you to build your own. A video of version 1 and version 2 are available after the break.
[via
HackedGadgets
]
| 34
| 34
|
[
{
"comment_id": "217240",
"author": "SlurmMcKenzie",
"timestamp": "2010-11-23T19:11:37",
"content": "i think it’s awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217253",
"author": "ftorama",
"timestamp": "2010-11-23T19:18:34",
"content": "These AVRs are definitely great…Great job also, even if it’s still far from Akesson’s version:http://www.linusakesson.net/scene/craft/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217262",
"author": "Amos",
"timestamp": "2010-11-23T19:51:14",
"content": "1. Not exactly new, but really cool. Every time I see a microcontroller putting out crummy NTSC or PAL, I’m like “why not just use a far superior and easier to interface VGA monitor? You can get hundreds of them for free on craigslist if you don’t have one lying around, plus most newer TVs have a VGA port.” I want to see this adapted to YCRCB component output (which would really just involve changing the color space of the input data, and changing the timing/voltages to match RS170 [aka “NTSC before color was added”]).2. Where did they find a Canadian robot to do the voice-over?3. I’m not implying anything, but the circular, stylized “LC” logo toward the end of the second video looks just a tiny bit like the swastika wall-hangings from Wolfenstein…4. The robot pronounced “GIF” wrong. The “G” is pronounced like a “J”, like the popular (well, maybe not in Canada) peanut-butter brand-name. Source:http://www.olsenhome.com/gif/5. Sorry for the long comment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217267",
"author": "jeff-o",
"timestamp": "2010-11-23T20:05:17",
"content": "A fine accomplishment, but I’ll stick with my Propeller. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217316",
"author": "Greycode",
"timestamp": "2010-11-23T21:20:14",
"content": "SPELL CHECK ON AISLE 4!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217334",
"author": "dmcbeing",
"timestamp": "2010-11-23T22:09:34",
"content": "@SlurmMcKenzieNo its truly epic:Right now i have a project in my university.It is to write verilog code to display images to a vga display.We are using xilinx spartan 3 boards (~100$).The catch is that it can only display 8 colors.So this is truly epic since with some resistors and a 5$ chip you can output nicer grapics.Truly epic bravo to the creator!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217361",
"author": "LazyMegaMan",
"timestamp": "2010-11-23T23:34:17",
"content": "What was this project about again? I got distracted by the bouncing ball on EVERY FREAKING SCREEN.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217375",
"author": "Travis",
"timestamp": "2010-11-24T00:23:51",
"content": "So, sort of related, how does one run Linux on an ARM and output its video to a monitor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217390",
"author": "RadBrad",
"timestamp": "2010-11-24T01:34:46",
"content": "“Canuck Robot” here…Thanks for posting my project.Cheers!Brad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217411",
"author": "RadBrad",
"timestamp": "2010-11-24T01:56:57",
"content": "@Amos…There is no “they” on LucidScience, just me, the robot. Ain’t never heard of a “Jif” file either, eh?Doh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217448",
"author": "Fallen",
"timestamp": "2010-11-24T03:23:44",
"content": "Maybe it’s just a Canadian thing, but I always said it Gif, not Jif. Or I’m a noob. Or both. IDK. Either way this is an awesome project, kudos.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217460",
"author": "Jerome Demers",
"timestamp": "2010-11-24T04:22:34",
"content": "lol I always said GIF too.In french we do pronounce int (integer) wrong. Well all my friend and teacher got it wrong, until I did a intern completely in English and learned the real pronunciation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217465",
"author": "Rob Wentworth",
"timestamp": "2010-11-24T04:35:21",
"content": "Back in bygone pre-internet days, I ordered a copied of the GIF spec from CompuServe. It said to pronounce GIF as “Jiff, like the peanut butter”, and I have had to defend that “official” pronunciation whenever people tried to miscorrect me to say it their hard-G way…I have seen similar projects to this that have detailed real-time procedural graphics and/or sprite-based graphics (sprites stored in FLASH or ROM), so no frame buffer needed…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217518",
"author": "rj",
"timestamp": "2010-11-24T06:57:44",
"content": "What a terrible DAC… 1- the diodes are completely unnecessary; 2- 72 out of the 256 colors are out-of-gamut (involve voltages higher than 0.7V so the color to be displayed is not well defined) because the resistors were badly chosen — they shouldn’t be 1K and 2K but closer to 1600 and 3200; 3- the smudginess is probably because of bad termination rather than anything else, which shows up with the nicer DAC he discarded… and last off, he wrote his own color quantizer rather than using one from somewhere else (e.g. gimp, pnmtools, there’s probably one in photoshop, &c) and then talked about writing “a proper image converter and offer[ing] it for download”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217522",
"author": "SteveO",
"timestamp": "2010-11-24T07:12:26",
"content": "yes, and Worcestershire is actually pronounced: wer-chest-er-shire, but popular opinion is worsh-te-sheer… so that’s what it is. If some long dead company said it was “jif” and people now choose to change it to “gif” – then “gif” it is.ALTHOUGH, “gif” in English would be pronounced with a soft “g”. rule:When c or g meets a, o, or u, its sound is hard.cap, cave, colt, comedy, curly, cuddlegas, gather, goblet, goddess, gum, gutterWhen c or g meets e, i, or y, its sound is soft.census, center, circle, citizen, cycle, cymbalgel, general, giant, ginger, gypsy, gyrateomg… I really should just go to bed… I am arguing spelling and pronunciation on the intarweb.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217583",
"author": "Phil",
"timestamp": "2010-11-24T09:32:02",
"content": "Great, now do it with HDMI ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217593",
"author": "Daid",
"timestamp": "2010-11-24T09:59:51",
"content": "It has been done before:http://avga.prometheus4.com/Which doesn’t need external RAM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217598",
"author": "Hoopstar",
"timestamp": "2010-11-24T10:22:35",
"content": "Might try this on my Arduino..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217607",
"author": "antonye",
"timestamp": "2010-11-24T10:54:30",
"content": "Hard and Soft C/G? What about “soccer” and “finger” ? ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217611",
"author": "smoker_dave",
"timestamp": "2010-11-24T11:22:03",
"content": "Only a soft G uses his finger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217664",
"author": "Rob Wentworth",
"timestamp": "2010-11-24T12:55:58",
"content": "Yes, AVGA uses sprites and tiles, which can be stored in Flash or ROM, to save precious RAM space. Sprite and Tile-based graphics only need to store a tiny ASCII-graphics style “frame buffer”, which contains characters that are used as an index into the tile tables. A tile is basically an icon. This is how backgrounds are built for games like Mario Bros.Notice how the AVGA website background is built from tiles (a tile looks like a repeating icon). ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217678",
"author": "SexieWASD",
"timestamp": "2010-11-24T13:25:55",
"content": "Soft G’s upset me. Just use a j if you want it to sound like a j! That, and silent letters, wth?I do my very best to fix these problems with English by mispronunciating them every chance that I get.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217736",
"author": "Fallen",
"timestamp": "2010-11-24T14:57:01",
"content": "@Stevo:Get, Geek, Gear, Gecko, Geyser.Gimp, Gift, Giga-(Altho the jiga pronunciation is acceptable. 1.21 gigawatts :P), Gimmick, Girth, etc.My point is, the soft G if an i or e precedes it is not a hard and fast rule. There are many exceptions.IMO if the G in Graphics is hard, it should be hard in the acronym. But anywho this is kinda off topic and pointless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217876",
"author": "Jake",
"timestamp": "2010-11-24T20:42:23",
"content": "This guy gets 1,000 of my best internets for being leet and wiring his own AVR vs. being a complete nub and using something that he nubbishly refers to as an “arduino”. HA!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217904",
"author": "MrX",
"timestamp": "2010-11-24T21:40:17",
"content": "@JakeYou are a moron. Not everyone wants to waste breadboards with stuff that development boards do well.Congrats, you just won today’s internet l4m3st comment.On topic: That DAC seems a little out of calibration – I wonder if the color palette is close enough to the basic 6-level RGB.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217910",
"author": "Hitek146",
"timestamp": "2010-11-24T21:48:58",
"content": "As stated before, Compuserve(the very people that *created* the GIF format) said it should be “jif”, and since it was their creation, they should know…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217953",
"author": "Agent420",
"timestamp": "2010-11-24T22:50:57",
"content": "I’m more of an avr guy than a Propeller guy, but video is certainly one area where the Propeller shines. You may consider using the prop for video even if you decide to use an avr for the main logic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218528",
"author": "sneakypoo",
"timestamp": "2010-11-25T17:43:31",
"content": "I have a question. How is that this project is able to output images “instantly” to the screen but my simple PIC+phone LCD can’t do the same? It’s a 320×240 screen with a 16bit parallel interface. The PIC18f4550 is running at 48MHz. When printing out an image (stored in program memory) you can see it drawing it line by line. I figured the C-program was just slow so I tried sending a solid colour by setting the ports to represent Red and then just twiddled the clock pins in a for loop. And it’s still not “instant”.Is my current PIC simply too slow for the task?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218583",
"author": "yuriks",
"timestamp": "2010-11-25T19:37:57",
"content": "I’ve been looking around for a bit to no avail. How is sync on green done (what levels, etc) and is it required? And how do I derive new pixel clocks, timings and resolutions?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218652",
"author": "rj",
"timestamp": "2010-11-25T20:48:52",
"content": "MrX: re DAC- see my previous comment, the DAC is AWFUL. The guy doesn’t seem to know/care about analog video.sneakypoo: No, that’s almost certainly the interface to the LCD that’s slowing you down.yuriks: Sync-on-Green is the same as RS170/NTSC just at different frequencies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219659",
"author": "Colin",
"timestamp": "2010-11-27T09:10:08",
"content": "I’m trying to interface a pic with my LCD monitor.But when I tested it out, the monitor would go black, give me the message “Out of range”, and then restart.Any ideas what the error message means, and/or what’s causing it? I’m thinking it might be a timing issue. I don’t think it has to do with my RGB values, as I tried removing the color connections and the same thing happened.After looking around, I’ve found that this also happens when you try to use a resolution not supported by the monitor. Is it possible that this monitor doesn’t support the original VGA?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219660",
"author": "yuriks",
"timestamp": "2010-11-27T09:21:10",
"content": "Colin: 99% sure your sync signals have the wrong timing. Assuming you’re using the code from this page, you’ll need to redo the nop’s acoording to the instruction timing on the PIC (applying the signal clock x uC clock ratio).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "239829",
"author": "ENKI-][",
"timestamp": "2010-12-03T16:59:45",
"content": "You don’t seem to be using too many of the pins on your micro (presumably at least some of them are digital out); would you be able to run multiple monitors off this, or are you maxxing out your ram?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1014322",
"author": "LowWattResistor",
"timestamp": "2013-06-09T16:34:44",
"content": "at a point in comments section I was lost thinking if it was all about GIF pronunciation, anyway great job, your 16 page tutorial helped a lot. big thanks",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.256452
|
||
https://hackaday.com/2010/11/23/timelapse-circuit-for-point-and-shoot-cameras/
|
Timelapse Circuit For Point And Shoot Cameras
|
Caleb Kraft
|
[
"classic hacks",
"digital cameras hacks"
] |
[
"attiny",
"camera",
"photography",
"timelapse"
] |
[Andyk75] has done some fantastic work documenting his
timelapse addition
to his digital camera. Most of the more expensive models of cameras have a remote shutter release, but the point and shoot jobs usually don’t. He decided to add the ability to turn the camera on, then shoot a picture, then turn it back off. Pretty smart, since these things tend to eat batteries pretty quickly if left on. He is using an ATtiny24 for the brains, but the circuit should be pretty adaptable to others. The final piece has several features, like the ability to change the length of time between shots and automatically shut down when it gets too dark outside to continue. He has posted the schematics as well as the board layouts if you can find them amongst the ads in instructibles. You can check out a video of a sunset taken with this camera after the break.
http://www.youtube.com/watch?v=kV6Lg__62j8&w=470
| 15
| 15
|
[
{
"comment_id": "217205",
"author": "svofski",
"timestamp": "2010-11-23T17:40:21",
"content": "Cool. I thought of making a similar setup that doesn’t involve modifying the camera itself: a servo (or two) could be used to press the buttons. This contraption is of course more efficient. It’s too bad I will never see it in detail because I’m not clicking an instructables link.People, seriously. Stop posting your projects on instructables. Do not support evil.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217208",
"author": "fartface",
"timestamp": "2010-11-23T18:00:42",
"content": "“tends to eat batteries..”It seems that Hack-a-day cant comprehend the “external power supply”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217209",
"author": "alan",
"timestamp": "2010-11-23T18:02:45",
"content": "@farface cameras are meant to be portable. why would you want to worry about plugging it in somewhere or carrying an extra “external power supply” around?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217212",
"author": "Whatnot",
"timestamp": "2010-11-23T18:14:17",
"content": "Ads? What are we? IE users?But nonetheless it’s true instructables started so nice and then went mad trying to force people to sign in, it’s annoying and lacks any kind of class, and I did sign up so long ago, but the forcing just makes it all sour and I end up not logging in out of annoyance and visiting a hundred times less, so that was a nice achievement of them.They still have handy features though like downloading the entire article in a pdf with the option on what to include, assuming you are logged in of course and that’s one function I forgive them for making logging in enforced to use it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217221",
"author": "tantris",
"timestamp": "2010-11-23T18:35:26",
"content": "external power supply:my camera has a 5v input for charging, which also works to hook-up an external power supply. since it has an internal charger for a liion it tolerates 4.5 (maybe lower) to 6v.all i had to do is put 4 aa batteries in a case and add a matching plug.an external power, that’s portable and great as a backup for places where you don’t have power. total cost: 25c (battery case came from a patriotic led light on sale after 4th of july.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217223",
"author": "svofski",
"timestamp": "2010-11-23T18:39:52",
"content": "Many cameras do not have any charging/power connectors. Instead you have to remove the battery and put it in a charger. This may seem weird, but it’s useful in a trip because you can take several batteries with you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217264",
"author": "BiOzZ",
"timestamp": "2010-11-23T20:02:05",
"content": "some of my timelapses i need DSLR quality and my DSLR lenses but this would be nice for small long term lesser quality time lapses!like maybe a year long one? :3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217268",
"author": "Amos",
"timestamp": "2010-11-23T20:05:32",
"content": "I’m not a photographer, but I enjoy a good time-lapse. It’s too bad the point-and-shoot makers can’t even expose the power and shutter button inputs on some kind of connector for simple automation hacks. Seriously, how much does a 3.5mm phono jack cost in quantities of 10,000?Off-topic rant:@Anti-‘Ible Nuts:We all know Instructibles has problems. We know you don’t like it, and we don’t really care. I could just as loudly and repetitively complain about people who post their videos on YouTube (the sporadic and slow bandwidth from their overloaded servers makes me pause to buffer EVERY TIME. I don’t even have to pause Hulu shows), but that’s not going to stop people from doing it.If you want to “change the world”, start your own competing website and use ‘Ibles (and HaD) to advertise it. Even better would be a one-click service that automatically transfers an ‘ible to your own site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217330",
"author": "smoker_dave",
"timestamp": "2010-11-23T21:56:15",
"content": "Instructables is shite.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217376",
"author": "Einomies",
"timestamp": "2010-11-24T00:31:23",
"content": "The downside I suppose is, that you can’t leave it at a certain zoom or other settings, because the cameras tend to reset after being powered up.A cheap Canon could be scripted via CHDK to take the shot every time it is powered on, though, so all you would have to do is connect the power, wait a bit, then run a clean shutdown and wait for the next go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217382",
"author": "Cyberteque",
"timestamp": "2010-11-24T01:17:25",
"content": "Why not just use a Cannon, running CHDK, you can control every aspect of the exposure.If you want cable release, it’s as easy as putting 3V across the USB data lines.For external power there is a battery blank, with matching hole in the battery door.Much easier, more flexible!but seeing is believing, so…..http://www.youtube.com/watch?v=jNTkroIVg7shttp://www.youtube.com/watch?v=j7UcOKPhbVkhttp://www.youtube.com/watch?v=gMTBgIPLBichttp://www.youtube.com/watch?v=zU5O3MUvI4Qhttp://www.youtube.com/watch?v=Y–kwnojeeEhttp://www.youtube.com/watch?v=m7AY4wndkrEhttp://www.youtube.com/watch?v=_7-uU6q8Egshttp://www.youtube.com/watch?v=wTnTQEwp-n8http://www.youtube.com/watch?v=immm1cckeIIhttp://www.youtube.com/watch?v=2RBCcEi38B8http://www.youtube.com/watch?v=ty2jf3oYMUYhttp://www.youtube.com/watch?v=ghJ_moSTcwwhttp://www.youtube.com/watch?v=LXK5bv6KLDgAnd if you don’t have a Cannon, go to the local pawn shop with the list of supported features from CHDK and get one!I’ve seen them as cheap as AUS$40 2nd hand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217527",
"author": "thegoddamnedbatman",
"timestamp": "2010-11-24T07:31:14",
"content": "re: CHDK, it actually has a built in timelapse feature, under the ‘intervalometer’ name. It’d require continuous operating power, but it’d work out of the box, so to speak.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217610",
"author": "Garbz",
"timestamp": "2010-11-24T11:14:53",
"content": "@BiOzZDSLR quality for a timelapse? My 8 year old point and shoot generates a higher resolution image than 2megapixels of a 1080p high-definition. So really it’s all about the lens. And unless you’re going for a narrow depth of field you’ll be hard pressed telling one of your Nikon goldring lenses from modern point and shoot given the final picture is 1/5th of the recorded resolution.The more you post on HaD the more I realise you have more dollars then sense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219067",
"author": "mr x",
"timestamp": "2010-11-26T09:09:24",
"content": "I’m the author of the Instructables to PDF script on userscripts.org yes you still need to be logged in but it’s their choice to mess their visitors around.I was equally peeved but instead of b!tching about it, I hacked!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "341301",
"author": "Mariah",
"timestamp": "2011-02-25T01:32:44",
"content": "wow, cool. I want to learn to do the same. Oh, letme watch the video first.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.04964
|
||
https://hackaday.com/2010/11/23/pr2-kinect/
|
PR2 + Kinect
|
Caleb Kraft
|
[
"Kinect hacks",
"Robots Hacks"
] |
[
"Kinect",
"pr2",
"ros"
] |
Willow Garage, the makers of the PR2 robot have been
playing with the Kinect
. You might be a little tired of seeing every little new project people are doing with it, but there’s something here we couldn’t help but point out. When we posted the video of the guy doing
3d rendering with the Kinect
, many of the commenters were speculating on how to get full environments into the computer. Those of you that said, “just use two, facing each other” seem to have been on to something. You can see that they are doing exactly that in the image above. The blue point cloud is one Kinect, the red cloud another. The Willow Garage crew are using this to do telemetry through the PR2 as well as some gestural controls. You can download the
Openkinect stack for the Robot Operating System here
. Be sure to check out the video after the break to see the PR2 being controlled via the Kinect as well as some nice demonstrations of how the Kinect is seeing the environment.
[via
BotJunkie
]
| 21
| 20
|
[
{
"comment_id": "217168",
"author": "Sariel",
"timestamp": "2010-11-23T16:25:32",
"content": "thats absolutely amazing! makes me want two now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217172",
"author": "washer",
"timestamp": "2010-11-23T16:29:20",
"content": "I remember that there was a big debate about using two kinects and if their sensors would interfere with each other. I couldn’t find any detailed info on Willow Garage’s post. Does anyone know if this was a non-issue and if not, how did they deal with it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "217175",
"author": "Caleb Kraft",
"timestamp": "2010-11-23T16:35:32",
"content": "looks like others have been doing it from whatever angle they wanthttp://vimeo.com/17107669",
"parent_id": "217172",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "217178",
"author": "fishpond",
"timestamp": "2010-11-23T16:37:41",
"content": "Yep, same question…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217183",
"author": "Hackius",
"timestamp": "2010-11-23T16:53:37",
"content": "Here Radu is quoted as saying:“Judging from a few basic tests with two Kinects, I can’t seem to get them to interfere with each other to the point where the data is unusable.”http://gilotopia.blogspot.com/2010/11/how-does-kinect-really-work.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217206",
"author": "Necromant",
"timestamp": "2010-11-23T17:43:31",
"content": "Heh… looks like I’m gonna getting two of ’em…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217233",
"author": "Whatnot",
"timestamp": "2010-11-23T18:46:59",
"content": "Seems even 2 is not enough, since they act like a pointsource with no reflections you need more than 2 to cover an object completely I guess.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217260",
"author": "VIPER!",
"timestamp": "2010-11-23T19:34:16",
"content": "Most Impressive! Its amazing that Microsoft stated that they would take legal action against anyone using the Kinect for “Hacking” rather than embrace peoples creativity doing amazing things with Gaming Hardware. I guess that why they changed there tune later on and saw this as an advertising opportunity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217272",
"author": "Amos",
"timestamp": "2010-11-23T20:12:49",
"content": "It makes sense that they wouldn’t interfere with each other if they’re tracking /changes/ in the dot pattern, rather than absolute positions (which would really be prohibitively difficult, if you think about it). Of course, given enough of them, you could probably get such a dense point cloud (along with tons of stray IR light bouncing off stuff) that the data would be useless. But, since you only need three, maybe four, to get a complete scene, there’s no reason to even approach that limit (unless you can afford an army of robots, each with three Kinects. And if that’s the case, I really want to be your friend/employee! ;).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217283",
"author": "Mythgarr",
"timestamp": "2010-11-23T20:28:51",
"content": "Depending on what you’re tracking, the better solution would probably be to build some intelligence and persistence into your recognition algorithm.http://grail.cs.washington.edu/projects/videoenhancement/videoEnhancement.htmprovides a good example of how a system like this works.Breaking the body into individual point clouds at the joints and predicting unknown points based on previously captured data should yield a very high degree of accuracy when coupled with dual depth cameras. You could also do some enhancements based on the knowledge that the unseen points must be somewhere in the shadow of the captured images.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217495",
"author": "Tripp McNeilly",
"timestamp": "2010-11-24T05:16:02",
"content": "Wouldn’t 4 Kinect sensors in each corner of a square room allow for a complete 3D map of the room and its contents? What if you changed the IR wavelengths of each emitter and sensor so each sensor would not interfere with the others? Just sayin…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217500",
"author": "andrew",
"timestamp": "2010-11-24T05:31:48",
"content": "Yea, I wonder if they need to be 180 degrees offset from each other or if 90 degrees or less will work too — it seems like their point clouds might interfere.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217503",
"author": "Chris",
"timestamp": "2010-11-24T05:53:29",
"content": "Seems like two Kinects seeing each other’s pattern don’t fail, their output just gets slightly noisier.If high accuracy, max framerate, and 360° operation is required, seems like the way to go is polarization; like so:0°: Horizontal polarization90°: Vertical polarization180°: Horizontal polarization270°: Vertical polarizationEach Kinect wouldn’t be able to see its two neighbors’ dot pattern because of the differing polarization. And Kinects 180° apart won’t see each others’ dot patterns regardless of polarization, unless there’s mirrors present.You’d need to put a polarizing filter over the camera. The laser is already polarized, and to alter that you’d need to rotate the laser diode in the projector module (without rotating the entire module or pattern lens).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217524",
"author": "Amos",
"timestamp": "2010-11-24T07:20:53",
"content": "@Chris:Polarized light would /only/ work on mirrors/shiny things, because most things scatter and depolarize light. That’s why you need a “silver” screen for cross-polarized 3-D movies. It doesn’t work on just a blank wall, for instance. It might /slightly dim/ the other Kinects’ dots, but it wouldn’t filter them out completely on most things.Also, what makes you think there’s a laser in the Kinect? Even if there is (which I doubt) why would it automatically be polarized? Lasers are /coherent/ but not (necessarily) polarized.One more thing: you really only need three for a more-or-less complete view of the scene/object (and they did pretty well with two in the article, going by the above screen-shot).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217525",
"author": "Amos",
"timestamp": "2010-11-24T07:22:36",
"content": "(Oops, I forgot about lenticular screens…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217529",
"author": "Whatnot",
"timestamp": "2010-11-24T08:02:03",
"content": "@Amos It’s rather obvious that there’s a laser in there, how would you get uniform dots in uniform size over a large area otherwise?And I already said that a while ago but now the ‘scene’ is also starting to say it most probably is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217552",
"author": "Chris",
"timestamp": "2010-11-24T08:45:37",
"content": "@Amos: I though reflections maintained at least a majority of the original polarization? Maybe not enough for 3D movies, but enough to reduce the interference on the Kinect.As for whether it’s an actual laser in there or not, I’m going off the preferred embodiment of the device, as described in the patent filed by the company who original designed the depth sensing system. It describes the projector as an IR laser, and a one-piece compound acrylic lens that forms the dots. Although there are also some alternate embodiments which use IR LEDs and other dot schemes (gotta cover as many bases in a patent as you can).And according to Sam’s Laser FAQ and other sources, laser diode are generally linearly polarized.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217708",
"author": "Roberto",
"timestamp": "2010-11-24T14:11:58",
"content": "Aw. I expected Willow Garage, one of the best applicators of OpenCV around, would have compared CV’s stereoscopy function against Kinect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217761",
"author": "Rob Wentworth",
"timestamp": "2010-11-24T16:47:49",
"content": "If the kinect IR laser is pulsed, multiple kinects should rarely interfere with each other. Any pulse-frequency aliasing should quickly subside due to async clock drift, and the internal kinect firmware could discard anomalous readings caused by periodic inter-kinect interference.Pulsing the laser would also keep it cooler and allow brighter dots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217762",
"author": "Rob Wentworth",
"timestamp": "2010-11-24T16:51:15",
"content": "P.S. The laser pulses would have to be genlocked to the IR camera, if indeed the kinect uses a pulsed laser.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217841",
"author": "aperson",
"timestamp": "2010-11-24T19:38:26",
"content": "KIKAIDER!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.312173
|
||
https://hackaday.com/2010/11/22/hacking-together-a-bedbug-exterminator/
|
Hacking Together A Bedbug Exterminator
|
Mike Szczys
|
[
"home hacks"
] |
[
"bedbug",
"exterminate",
"hot box",
"insect"
] |
We’ve seen so many stories in the news about the growing plague of bedbugs. It kind of infuriates us because the spin of these “news” pieces is always that we’re going to have to live with these insects and there’s nothing you can do to avoid it. Bullcorn! [Ed Nisley] was dealt a bum hand in the form of a bedbug infestation but instead of
losing
his mind he used it to get himself out of the mess. One of the steps in the dis-insecting process was to
develop a bedbug killing box
that raises the contents above the kill temperature for the pests. He built an insulated chamber, with a grate to raise the target material off the bottom and allow for heat exchange around all edges of the item. Light bulb combinations of 60, 100, and 120 Watts were tested along with a fan for air circulation. He graphed the results and plans to use what he learned to build a more efficient heater for the box.
But the hot box isn’t his only defense. His household developed barriers, blocking the insects by height or with a sticky zone. Check out
the collection of his bedbug posts
and stop being afraid of these things! We can fight back and we can do it using common items and ingenuity.
[Thanks Steven]
| 57
| 50
|
[
{
"comment_id": "216688",
"author": "ferdi",
"timestamp": "2010-11-22T23:08:30",
"content": "gread idee but if you life in a clean house you dont have bed bugshere in the neteherlands we dont have bedbugsa see on tv it,s more a probleem in america",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216691",
"author": "Lyle",
"timestamp": "2010-11-22T23:16:29",
"content": "@ferdiBed bugs have nothing to do with clean or dirty. They don’t live on dust, they live on blood. Even apartments in nice neighborhoods can contract bed bugs. It’s a problem in SF because it doesn’t get cold enough here to kill them in the winter.And I can’t help but think, wouldn’t a waterless steamer be more effective? That way you can kill both the bugs and the eggs instead of relying on the bugs to go into the box (which won’t stop them from laying eggs first).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216693",
"author": "Mr_Bishop",
"timestamp": "2010-11-22T23:17:17",
"content": "I’m sure it has nothing to do with the fact you live on a entirely different side of the ocean. The reason it s a problem for some is because the insects latch on and spread they don’t spontaneous come into existence. Their is no reason to take a post about a perfectly good hack/creation and try to turn it into a subtle insult. AWAY WITH YOU TROLL!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216694",
"author": "Lyle",
"timestamp": "2010-11-22T23:18:14",
"content": "Aaaand that’s what I get for posting before reading. The box is intriguing for luggage sterilization.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216709",
"author": "Dr. Jim",
"timestamp": "2010-11-22T23:56:05",
"content": "FerdiI’m from an area that hasn’t seen a bedbug in 40 years, now they are everywhere. Showing your idiotic anti-American bias by making an ignorant and inflammatory comment only makes you appear a fool.Bedbugs were almost no-existent in the US until about 10 years ago when they were re-introduced by travelers from EUROPE! Yes EUROPE! So take your moronic comments and place them where the sun doesn’t shine.As an entomologist with 30 years experience developing insect control procedures for hotels, I know how difficult they are to get rid of. Modern organophosphate insecticides will not harm a bedbug and they are just as likely to invade a clean home as a dirty one. They are experts at hiding need very little food(you!) and reproduce rapidly.DDT was used in the past and had practically eliminated them from North America. As this chemical was banned we have limited options.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3238408",
"author": "Brandy Kaminski",
"timestamp": "2016-10-21T17:43:14",
"content": "Thank you for that ! I can’t stand an ignorant person . I’m not a dirty person but do have four daughter who attend public school. I can’t control what comes in with them . Now that we have the bed bugs and caught them soon , I will definitely be changing our habits . More washing and drying of backpacks that’s for sure ! This has been a nightmare . To think people honestly think your a dirty person because you have them just upsets me ! So thank you for saying this you couldn’t of said it any better !",
"parent_id": "216709",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "216713",
"author": "Mike Barber",
"timestamp": "2010-11-23T00:02:01",
"content": "This is what DDT is for. Time to bring back DDT for personal use.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6339646",
"author": "Brando",
"timestamp": "2021-04-14T08:19:55",
"content": "DDT caused ovarian cancer in over 30 percent of women and girls in areas it was used. Unfortunately, this is why it is not an option to use it again",
"parent_id": "216713",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "216714",
"author": "Jax184",
"timestamp": "2010-11-23T00:09:03",
"content": "Heat isn’t the only way to kill bedbugs. Cold will work as well. A friend of mine stuck all her belongings in a powerful chest freezer before moving them into her new house. Each method would be suitable for different materials.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216715",
"author": "Munden",
"timestamp": "2010-11-23T00:09:54",
"content": "Alternatively, a few minutes in the dryer has proven to be an effective method of killing bed bugs.Real news and journalism still exists on NPR. Here is a 31 minute piece on bedbugs to answer all your questions –http://www.npr.org/templates/story/story.php?storyId=129701363",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216720",
"author": "Ben Foote",
"timestamp": "2010-11-23T00:17:16",
"content": "My wife and I had bed bugs a year or so ago. If you have them, its the worst hell you can imagine. You are basically powerless to stop them completely, and eventually end up shelling out thousands for the pro’s to come do a mediocre job. I welcome anyones advice that has a DIY way to kill them. Or DDT being legal again would be nice…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216728",
"author": "Dr. Jim",
"timestamp": "2010-11-23T00:25:40",
"content": "I want to correct myself. I meant modern NON-organophosphate pesticides.Organophosphates are the only effective modern pest control chemicals, unfortunately you can’t buy them commercially anymore and need a license.My supply of Diazinon(purchased before 2004) I hold dearly for I’m not an exterminator by trade, I only consult.Scour your granpa’s garage you may find gold!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216757",
"author": "Hirudinea",
"timestamp": "2010-11-23T01:02:05",
"content": "Bedbugs start to die at 120? Somebody should start a buisness heating infested houses to this temp.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216773",
"author": "Spork",
"timestamp": "2010-11-23T01:29:47",
"content": "@HirudineaThey already do that in some places, but usually it’s more time/cost effective to spray pesticides.That said, I wonder if any studies have been done on bedbugs and common chemicals like (Hydrogen Peroxide)H2O2/(Acetic Acid)CH3COOH/ (Paracetic acid)CH3CO3H /(Ethanol)EtOH… These kill most bugs and are pretty harmless to humans. Curious if you can just set up a “trap” with this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216775",
"author": "andrew",
"timestamp": "2010-11-23T01:35:34",
"content": "Sweet — but, I was expecting graphs of the LD50. No bed bugs were harmed in these experiments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216785",
"author": "Concino",
"timestamp": "2010-11-23T01:50:34",
"content": "Nice hack. As soon I seen this I think of a microwave version but then I realize that there are metals in the luggage. For Non-metal objects I think Microwave would work better and faster. ZAP!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216791",
"author": "Jax184",
"timestamp": "2010-11-23T02:28:40",
"content": "I can see two problems with using a microwave to kill bedbugs.For one, small bugs can actually hide between the standing waves inside of a microwave, thus narrowly avoiding getting heated. Try sticking a fly or something in a microwave and you’ll likely see it land on a wall and stand still.For two, microwaves act the strongest on watery/fatty items, leaving stuff like plastics mostly untouched. If you were to place something like a dry shirt in the microwave I don’t believe it would heat up very well. So the bugs might not even be heated to death by the material they’re hiding in.All in all I think it would be more reliable to use a traditional resistive heating system like in the article.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1021107",
"author": "Ben Simon",
"timestamp": "2013-06-30T11:45:59",
"content": "I think the point was missed that microwave radiation of a bed bug kills it by heating up the internal water that constitutes the physical body of the bedbug.",
"parent_id": "216791",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "216822",
"author": "yuppicide",
"timestamp": "2010-11-23T04:07:20",
"content": "Does my Girlfriend count as a bedbug? She snores to loud you can vibrate the living room too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216828",
"author": "Chris",
"timestamp": "2010-11-23T04:38:32",
"content": "How about a plastic bag and dry ice (CO2)… I read that bedbugs die pretty quick in a CO2 atmosphere",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216835",
"author": "BiOzZ",
"timestamp": "2010-11-23T05:19:26",
"content": "this is great … right now where i live is in a “stink bug” epidemic and there transported by people so this would be great to have as the first line of defense",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216864",
"author": "Rachel",
"timestamp": "2010-11-23T06:43:40",
"content": "I’ve done some experiments with insects and CO2. It knocks them out in seconds of exposure, and a few minutes should be enough for certain death. I’m not quite sure about eggs though. Surely they require O2, but they might fall into a dormancy where they can sustain greater extremes.If it is effective on eggs, it should be very simple to wrap up a mattress and fumigate them. Be sure to open a window so you don’t asphyxiate yourself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216872",
"author": "octel",
"timestamp": "2010-11-23T06:54:18",
"content": "@Jax184easy solution: lightly mist the cloth with water before microwaving",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216876",
"author": "Dr. Jim",
"timestamp": "2010-11-23T07:01:31",
"content": "Sulfuryl fluoride is the most common commercially used fumigant, it is not available without a licence in most states however.Methyl chloride should not be used as it depletes the ozone layer and will impart a smell to fabric.Both chemicals can be hazardous to people and pets.Leaving your luggage in a hot trunk in the sun here in Florida is quite effective. I normally leave my luggage for at least TWO days just to be sure. The temperature in my black car’s trunk easily reaches 140F, more than enough to kill them. The reason BB die from this is due to dehydration. A clothes dryer will also kill bed bugs and their eggs effectively. While Cold will kill adult and larvae it may not kill BB eggs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216932",
"author": "Ferdi II",
"timestamp": "2010-11-23T08:07:04",
"content": "Why not just check all your belongings through your local friendly TSA checkpoint? If they don’t find and confiscate all the bugs, they’ll zap them with x-rays and leak pictures of their bodies on the net. Problem solved America!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216977",
"author": "BiOzZ",
"timestamp": "2010-11-23T08:32:07",
"content": "@Rachelif the bug eggs are like chicken eggs they have there own internal air sack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216995",
"author": "Hackius",
"timestamp": "2010-11-23T09:04:27",
"content": "Bed bugs did not come from Europe because like in America they were exterminated. Nobody knows were they came from. Popular opinion is that the eggs survived and after we stopped using DDT they just came back to life in forests and grass fields.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217018",
"author": "IhateBedBugz",
"timestamp": "2010-11-23T09:48:12",
"content": "I live in England and I lived in a block of flats many years back and we got bed bugs. We tried all manner of chemical and trap and nothing, I REPEAT, nothing stopped the little feckers. Eventually it got to a stage where you had to sleep in one piece suits with socks and gloves. There was no ridding these things. In the end, they were living in the spines of books, in the plugs of appliances, under the gaps in the skirting, in the furnishings, everywhere they could fit and they can go pretty flat in shape.Only choice we had was to move and leave everything behind.It also only takes one pregnant female to hide under the collar of your clothes and then for you to visit someone for them to spread like wild fire.Best bet to ridding these things is BURN the house out and claim on the insurance.Nothing, but NOTHING seems to kill them all completely, not even fumigation!If I ever found a single one in my home again, I would not hesistate to burn it to the ground!These things area a nightmare to live with.Good luck to anyone who gets them, I pitty you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217043",
"author": "Frollard",
"timestamp": "2010-11-23T10:28:23",
"content": "I notice noone posted about diatomacious earth. — it’s essentially powdered silt/rock. Safe to people as a powder, extremely fine ‘hard sharp’ dust that you spread near the baseboards (where the little f#*krs hide). It’s so sharp that it cuts their crap exoskeletons, so they literally die of dehydration. Not poisonous and totally safe around kids and pets (unless your pets have exoskeletons).A bottle is a few dollars at a hardware store.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217055",
"author": "Rachel",
"timestamp": "2010-11-23T10:56:50",
"content": "Chicken eggs do contain an air sack, but it is not the primary source of oxygen. The shell is porous and the membrane is semipermeable, allowing the diffusion of oxygen and CO2. A bit of research reveals insect eggs are much the same, and do in fact require external oxygen to live.Aside from being an asphyxiant, CO2 is also toxic because it saturates the tracheole gas exchange site, preventing any present O2 from being absorbed while the concentration is high enough. Insects are especially susceptible because their respiratory system provides direct access at a cellular level instead of through lungs and haemoglobin.In short, bedbugs can’t hold their breath.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217061",
"author": "ncrmnt",
"timestamp": "2010-11-23T11:28:06",
"content": "Looks like bedbugs strike back – now resistant to DDT. Nice job anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217074",
"author": "Kerala",
"timestamp": "2010-11-23T12:20:48",
"content": "Well, put the bed in sun every 6 months. Sunlight will kill them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217103",
"author": "echodelta",
"timestamp": "2010-11-23T12:52:29",
"content": "Good use of dinosaur lights, they are about 90% efficient as a heat source. A hair dryer of the hose and hood type is the way to go. Try flea markets and Goodwill or grandma. They are usually 200-300 watt output. Thermostatic control would be nice, but the hair dryer is designed to not burn anything as long as the airflow is not impeded or fan inside fails. I found “carrion fuzzies” on the floor under the foam mattress and cooked them and anything else out. A plus was it restored the foam to fullness, so I do it every few months for cloud soft sleep. Never seen a bedbug but a brown stinkbug just pinged the light last night, sucked up in the vacuum it still stinks! I once saw a spider in the microwave at work, so I heated coffee water and watched it prepare to die on the web…nothing happened. And it was suspended away form the boundary zone where the waves have no energy. That’s why there is a tray above the bottom.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217117",
"author": "fartface",
"timestamp": "2010-11-23T13:42:25",
"content": "DDT is BANNED in the USA. it is easy to get in mexico.What you do is import some yourself and use that to clean your own home of the insects.Luckily I even have a stash of Chlordane from before it was banned. I retreat the 2 foot wide swath around my home every 3 years and I have a solid “kill zone” that protected me from the termite infestation that took out the house that sits 10 feet away.The old stuff works, the loser environmentalists make us stop using the good stuff.DDT is safe to use if used right. Spraying it heavily into the air on everything like what was done with it is the cause of the problems with birds. Use of it once again inside homes is 100% safe but the tree huggers are too stupid to allow it back into use even for professionals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217118",
"author": "fartface",
"timestamp": "2010-11-23T13:48:20",
"content": "So just set the apartment thermostat to 140 degrees. TaDa! No more bedbugs in the entire home.What? your thermostat does not go to 140?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217139",
"author": "Eirinn",
"timestamp": "2010-11-23T14:43:25",
"content": "@Dr. Jim he was making a claim that was shown to be wrong, there was >nothing< anti-american about it.I've never had problems with bed bugs and hope i never will.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217141",
"author": "M4CGYV3R",
"timestamp": "2010-11-23T14:52:07",
"content": "That hotbox was probably the least-interesting and least-necessary of all of those bedbug-bashing devices.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217157",
"author": "Whatnot",
"timestamp": "2010-11-23T15:58:20",
"content": "Jesus people, discussing bringing back DDT, which does NOT deteriorate and stays in the foodchain and is STILL in women’s breastmilk and is the reason why it’s a hard choice to pick breastfeeding over formula, and causes things like deformed children being born and cancer, all to get rid of a bug that does NOT spread diseases, that’s just beyond insane.Now I’m sure we can find a way to get rid of them if we have some chemist/biologist/engineer sit down and think for a sec, but no – advocating DDT is not the answer, that’s like spreading enriched plutonium over your floor as a fix.(And at one time in the 1800’s they actually sold radioactive drinks to ‘cure all’ so the parallel I draw is rather spot on.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217161",
"author": "Ed Darrell",
"timestamp": "2010-11-23T16:08:46",
"content": "Except, bedbugs showed resistance to DDT in the 1940s, and immunity in the 1950s. Professional exterminators stopped using DDT by the early 1960s — eradication was due to something other than DDT.Several studies show that every population of bedbugs on Earth now is highly resistant, and many completely immune to DDT.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217163",
"author": "Eirinn",
"timestamp": "2010-11-23T16:12:12",
"content": "@Whatnot Close! I think you mean Radithor (thx google) Radioactive drink, however it’s in the 1900’s:http://en.wikipedia.org/wiki/Radithor“The Radium Water Worked Fine Until His Jaw Came Off,”. XD so sad and funny at the same time",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217166",
"author": "Standard Mischief",
"timestamp": "2010-11-23T16:22:37",
"content": "Nth-ing Dry ice/CO2instead of building a hot box, I could toss my suitcase in a 6 mil heavy duty trash bag, suck 90% of the air out, and inflate with the CO2 tank I use for my welder (airsoft, salt water fish tank, soda maker, or a co2 fire extinguisher held upside-down)You need a tank of co2, or you need to buy a block of dry ice at the grocery store (about $1.09/lb around here)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217190",
"author": "Matt",
"timestamp": "2010-11-23T17:33:03",
"content": "@Hirudinea There are companies which do the whole house/apartment heat treating. I got it once in an apartment of mine and the landlord brought in a company which uses a bunch of big propane heaters pumping hot air in through the windows to heat the entire apartment to 140F for several hours.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217222",
"author": "Whatnot",
"timestamp": "2010-11-23T18:38:10",
"content": "Ah thanks Eirinn for looking up the details, although the point was clear I think even if I was off with the year a, erm, bit :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217232",
"author": "McScrewdriver",
"timestamp": "2010-11-23T18:45:47",
"content": "Well, we could use themselves to get rid of them.. We just need to somehow make their males more sexually active:http://en.wikipedia.org/wiki/Traumatic_insemination",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217308",
"author": "zool",
"timestamp": "2010-11-23T21:08:15",
"content": "i’m surprised no one’s made a ‘hot-box’ joke yeti wonder if you could use a similar thing that is often used to fight cockroaches, either boric acid (drys them out) or some chemical that keeps the young from becoming adult (stops molting process) and therefore can’t reproducethere may be some insectophage or bacteria that would infect the insect but it could be hard to find and/or also effect humans",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217350",
"author": "vonskippy",
"timestamp": "2010-11-23T23:07:05",
"content": "Thats why I breed specially trained killer wasps. No bed bug can hide (or is immune) to my killer wasps. Of course now I have sort of a wasp problem – but I’m working with a monkey breeder friend of mine to solve that.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3662327",
"author": "brady",
"timestamp": "2017-06-08T17:12:34",
"content": "thats awesome , funny af.",
"parent_id": "217350",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "217391",
"author": "alan turing's dog",
"timestamp": "2010-11-24T01:41:52",
"content": "diatomacious earth is the bee’s knees for killing grouind hugging bugs like fleas, cockroaches and the like. Bloody effective. A bit hard on the vacuum cleaner later.Unable to ask for it at a store? No problem! You can create something very similar by purchasing a $5 sheet of drywall (or a broken scrap from any building site) and sanding it. Nasty, so wear a mask or do it outside.Drywall dust is almost but not quite the same thing. I suppose that if you can lay hands on some chinese-made hydrogen sulfide impregnated drywall, you’d get even faster results. Anyway, having done remodeling in five countries, I have accidentally killed a lot of insects. And bottled beer.Wasp killers are pretty fun to make, btw – throw some beer, beer and bread, bits of meat, doctor pepper – practically anything, really, from booze to bratwurst into a jar/bottle/container and then make a cone and set it inverted on top.On a wasp and hornet infested camping trip we made about 30 of these from water bottles using beer and meat as baits, and within 2 hours we were practically wasp free – which lasted for the weekend. It was almost scary how fast we cleared the place out for about a 1/2 mile radius. It was great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217418",
"author": "James",
"timestamp": "2010-11-24T02:06:46",
"content": "Interesting, Bed bugs are supposed to be fairly common in the UK but I’ve yet to ever come across one or anyone who’s had them. I hope they don’t become more prevalent!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217822",
"author": "alan turing's dog",
"timestamp": "2010-11-24T19:03:12",
"content": "Want to experience them? When you get off the tunnel, ask the helpful looking indian girl[s] who offer tourist rooms for accommodations “off the record” – if you’re friendly and persistent, and willing to pay cash, you can stay in a bed sit that her uncle/friend/relative owns and save about 5% off the going rate.Then you can experience a 1 room bed sit in a converted walkup with shag carpet that dates to circa 1967 and a room that has been used as a lock efficiency test/british biting-insect refuge for a couple decades.The bugs weren’t voracious – we walked off with only a few nibbles. They were probably too weak from eating the carpets to do much damage. In general, low end english hotels self exterminate all manner of pest, and provide a useful source of organ donation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217972",
"author": "Dr. Jim",
"timestamp": "2010-11-24T23:22:46",
"content": "HackiusRecent DNA tests show the current infestation in NY(which has spread rapidly to other cities in the US and Canada) are of the same line as those found in hotel infestations in Turkey and the Netherlands in the late 90’s They spread via luggage and a statistical plot of the spread shows areas near international airports with flights to Europe were the first areas to be hit.(this was a study of hotel infestation issues I helped conduct in 2002)I only brought it up as a response to the first posters ill informed rant.Where they came from is irrelevant to anyone but an Etymologist like myself who uses this information to track the ability of an insect to spread and adapt.Again I will say bedbugs are not a result of a dirty home or poor hygiene. They also don’t distinguish between rich and poor, liberal or conservative and I have never seen a Bed Bug comment on the Israeli Palestinian issue in the BBC HYS section. If you have warm blood in your veins and sleep indoors you are susceptible to BB infestation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "224292",
"author": "paul hibbert",
"timestamp": "2010-12-01T00:39:11",
"content": "wow that’s cool! I ended up bringing in a pro. I had some good luck though, found a company that is reliable and has a process that is totally green and non-toxic.http://www.decongreeninc.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "277554",
"author": "TopDog",
"timestamp": "2010-12-09T03:52:09",
"content": "I had one or two decades ago before the current craze.I got some beef blood, mixed it with garden pesticide, and put the mix out in several low bowls around the apt. THen I slept somewhere else (ahem) for a few days. I found them laying in the bloody goop when I got back and never had another problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "285103",
"author": "Brian",
"timestamp": "2010-12-16T20:55:26",
"content": "Through bizarre coincidence, a week after reading this post and his site I was attacked. It took a few days to realize what they were, I thought it was a rash. I popped six cans of bedbug killer fogger’s in the house, threw out my pillow, and washed and dried everything. No more bites! It took at most two hours. It seems they are easier to kill than his site would lead you to believe.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.45764
|
||
https://hackaday.com/2010/11/22/anaglyphic-photography-made-easy/
|
Anaglyphic Photography Made Easy
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"3d",
"anaglyph",
"filter",
"gimp",
"stereoscopic"
] |
[ProfHankD] came up with a pretty easy way to
take 3D photos using a single lens
. He’s making
Anaglyph images
which use color filtering glasses to produce stereoscopic 3D effects. We’ve seen stereoscopic imaging hacks that
use two cameras
or a clever
combination of mirrors
, but this one uses a special filter and post-processing. [ProfHankD] drew up a template that can be used to properly align two colored filters, like those in the lens cap seen above. Once installed, just snap all the pictures you want and then hit them with your favorite photo editing software. This involves separating the color channels of the photograph and offsetting them to increase the depth of focus.
It’s a nice little process, and his writeup is easy to understand even if you’re not a hardcore photography guru.
[Thanks Paul]
| 13
| 12
|
[
{
"comment_id": "216663",
"author": "ProfHankD",
"timestamp": "2010-11-22T22:17:06",
"content": "Minor oops: NO POST-PROCESSING IS NEEDED. None at all. The JPEG from the camera is the anaglyph. Yes, the instructable gives some ways to improve things in post-processing, but it’s optional.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216672",
"author": "Spork",
"timestamp": "2010-11-22T22:36:37",
"content": "1) Very cool that a prof. would take the time to publish a tutorial and even include real information about the process.2) Why use Instructables? It’s awful.3)I have seen better lens-cap filters made by amateurs with no power tools at their disposal, why does a professor who has been researching this for a year use a piece of junk filter like that?I’m not saying it needs to be aluminum and threaded and professionally made, but hot glue and a lens cap? Really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216706",
"author": "svofski",
"timestamp": "2010-11-22T23:53:19",
"content": "What’s wrong with hot glue in a lens cap?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216722",
"author": "0b4mA",
"timestamp": "2010-11-23T00:19:37",
"content": "How does that help you see up your butt?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216756",
"author": "Hirudinea",
"timestamp": "2010-11-23T00:58:02",
"content": "Would this work with video as well?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216759",
"author": "Spork",
"timestamp": "2010-11-23T01:15:22",
"content": "@svofski,Just build quality. Cool for a prototype and for proof of concept. Maybe I’m just overprotective of my optics, but that wouldn’t go on my lens.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216772",
"author": "Taylor Alexander",
"timestamp": "2010-11-23T01:27:02",
"content": "@Spork It seems alright to me. Anaglyph 3D is such a poor technique that he’ll probably get bored with it and throw it in a drawer after not too long. (I bought some glasses off amazon to try YouTube’s new 3D feature, and man, I’d forgotten how bad anaglyph 3D is!)If I was just playing around to see if something worked, I’d go the hot glue route too, and at my day job I design all of our mechanical parts and program the CNC mills and lathes. I think the lens cap and hot glue method works well enough to play around with it a bit.But anyway, you weren’t being mean, so I don’t want to seem mean back. This is clearly a “to each his own” situation.I’d actually try this myself, if it weren’t for the aforementioned dislike of anaglyph images.-taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216784",
"author": "Amos",
"timestamp": "2010-11-23T01:49:04",
"content": "Cool hack!Are there any cameras (or custom firmwares) that allow saving JPEGs in the RGB color space? Anaglyphs turn out much better with these than with standard YCBCR ones. Of course RAW would be best, but JPEGs are more convenient.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216830",
"author": "walt",
"timestamp": "2010-11-23T04:51:08",
"content": "cool hack. one I may try.instructables BOOOOO",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216836",
"author": "BiOzZ",
"timestamp": "2010-11-23T05:20:25",
"content": "wow brilliant!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217119",
"author": "fartface",
"timestamp": "2010-11-23T13:56:49",
"content": "Does it work? yes. does it produce good 3d? not a chance.Sorry kids, you gotta get the opening separation out to the separation of the human eye. Great for a photography 100 class, useless for anything other than proof of concept.3d camcorders = crap. camera shake is tolerable at SD resolutions, at HD resolutions it get’s intolerable, and in 3d it makes you puke. and I have yet to see a home movie person that does not utterly suck at video or holding a camera steady.Finally, 3d is a gimmick that is passing fast. The TV’s suck, there is only 1 good camera (Fuji W3) and the only way to view this stuff online is with the crap-tastic 2 color glasses and they still can not fix the problem that the eyes want to focus on other things at other distances.The 2 sets of mirror setups are the best bet for the people that cant figure out something as complex as take a photo, move the camera 1 foot, take another photo. $3.00 in aluminum bar stock and 5 minutes on the CNC machine in the basement and I have a camera slider to do that on the tripod.Better photo, clearer, and correct or super separation.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "217149",
"author": "Caleb Kraft",
"timestamp": "2010-11-23T15:29:35",
"content": "@fartfacehttp://hackaday.com/2010/01/14/spherical-and-stereoscopic-photography/people often just use 2 cameras with a good distance in between.What’s worse than the cheesy gimmick attachments is when companies just add the 3d afterwards in post process.",
"parent_id": "217119",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "217130",
"author": "Ben Ryves",
"timestamp": "2010-11-23T14:35:46",
"content": "@fartface: YouTube’s 3D mode supports side-by-side viewing as well as various interleaved formats for 3D monitors and/or shutter glasses. I use some cheap shutter glasses and a VGA line blanker I built myself to view them and it works very nicely.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.507877
|
||
https://hackaday.com/2010/11/22/mix-your-own-photo-developing-emulsions/
|
Mix Your Own Photo Developing Emulsions
|
Mike Szczys
|
[
"chemistry hacks"
] |
[
"canvas",
"emulsion",
"gesso",
"photograph",
"silver chloride"
] |
If you’re into developing your own photographs you might
try mixing your own emulsion
. [Jimmy Hartnett] worked out the chemical reaction necessary to make a photosensitive medium using Silver Chloride. His process lets him manufacture canvas that can be use like photo paper. The gist of it involves coating the back of a canvas with
Gesso
to prevent the emulsion from passing all the way through. He then floats the canvas face-down to apply the emulsion and skims it with a straight edge before it has time to set. You can see the results of some contact print testing in the image above. If anything, this makes a great piece of art to hang on the wall as it’s visually interesting and [Jimmy] has a personal connection because he not only made it himself, but came up with the process.
| 11
| 11
|
[
{
"comment_id": "216644",
"author": "svofski",
"timestamp": "2010-11-22T21:05:47",
"content": "The title is incorrect, it’s photo emulsion. Emulsion is what receives light and changes its properties accordingly. Photo development, done in photo developer (development solution) and fixer, is what you do to make the pictures visible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216645",
"author": "svofski",
"timestamp": "2010-11-22T21:06:40",
"content": "Oh yes, and a super cool photo hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216703",
"author": "Amos",
"timestamp": "2010-11-22T23:44:08",
"content": "Too bad it’s not useful for PCB etching (he says the wet solution reacts with “metal”, which I assume includes Cu).It’s still a pretty cool chemistry project, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216717",
"author": "jeicrash",
"timestamp": "2010-11-23T00:15:26",
"content": "Nice, I have been hunting around some photography sites for this exact thing. We will see if its useful for what I need, good post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216754",
"author": "Hirudinea",
"timestamp": "2010-11-23T00:55:38",
"content": "Check out this link…http://www.cameratruck.es/?page=projecta marriage made in heaven.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216786",
"author": "Concino",
"timestamp": "2010-11-23T01:59:53",
"content": "@HirudineaThat’s one impressive camera. Thanks for sharing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216819",
"author": "Tyler",
"timestamp": "2010-11-23T03:39:24",
"content": "I appreciate the spirit of the project but there are already so many formulas that work. Even non sliver based emulsions.Here’s a place where photo nerds go for emulsionshttp://www.alternativephotography.com/wp/I have books on processes like this. It’s fun stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216831",
"author": "The Steven",
"timestamp": "2010-11-23T04:51:59",
"content": "Some of us old timers were doing this back in the early ’80’s.If you want to see something really interesting, look up “Sabattier Effect” or “pseudo-solarization”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216850",
"author": "Jimmy Hartnett",
"timestamp": "2010-11-23T06:07:50",
"content": "@The StevenI’ve used that effect quite a lot in the Darkroom, always been a personal favorite – I still need to scan the prints I made with it. (There is a whole storage area at my house for photo stuff I haven’t scanned in yet).@ TylerI’ll be sure to check out some of the other processes!-Jimmy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217677",
"author": "Rob Wentworth",
"timestamp": "2010-11-24T13:13:24",
"content": "When I was a kid I tried to make a photographic emulsion from a recipe in an old science book. The local drugstore pharmacist refused to sell me the required chemicals, insisting I was going to make explosive silver fulminate instead, and he proceded to show me his hand which was missing a few fingers…Anyway, his refusal diverted me from a photography hobby and started me on a fascinating new educational persuit, which culminated in serious bodily harm of my own in my senior year of high school.The moral of the story? Be careful HOW you deny something (you may cause what you are trying to prevent)…Perhaps obtaining silver chloride as used here is less of a problem than using the silver nitrate that was require in the photo emulsion recipe I was planning to use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218568",
"author": "alex",
"timestamp": "2010-11-25T19:04:52",
"content": "@tyler Altphoto is allright, buthttp://thelightfarm.comis a superior recourse for diy emulsions.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.556228
|
||
https://hackaday.com/2010/11/22/ridiculous-exerciser-become-useful-as-a-charger/
|
Ridiculous Exerciser Becomes Useful As A Charger
|
Mike Szczys
|
[
"Cellphone Hacks"
] |
[
"charger",
"dyna-flex",
"dynamo",
"generator",
"rectifier"
] |
[Scott Nietfeld]
built a charger from a Dyna-flex
wrist exerciser. We hadn’t heard of a these gyroscopic devices before but once we saw the promo video (embedded after the break) we realized that this is the kind of thing that infomercials were made to sell. [Scott] knew the internals spun to fairly high RPM and figured that adding a few magnets on the inside and coils on the outside would turn this thing into a generator. Four rare-earth magnets fit the bill, with two external coils feeding a rectifier and linear regulator. Below you can see his demonstration video where he takes the orb apart, then spins it up, generating 250 mA at about 7.5 volts to drive the regulator and charge a cellphone. Not bad!
Dyna-flex promo video
[youtube=http://www.youtube.com/watch?v=r5cM84qSj5o&w=470]
[Scott’s] walkthrough video:
[youtube=http://www.youtube.com/watch?v=BqLHxbneAus&w=470]
| 41
| 40
|
[
{
"comment_id": "216532",
"author": "Karlo",
"timestamp": "2010-11-22T18:48:51",
"content": "Available commercially since 2006:http://www.engadget.com/2006/01/27/manual-power-gyroscopic-phone-charger/And the powerball is great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216535",
"author": "lee",
"timestamp": "2010-11-22T18:52:45",
"content": "I remember my dad had one of these when I was a kid. It was a bitch to start, but worst of all it hurt like hell when you tried to stop it with your skin… #dontdothat lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216540",
"author": "Imanoss",
"timestamp": "2010-11-22T18:54:47",
"content": "Powerball – one of the wankiest ideas i have ever seen.(note innuendo)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216545",
"author": "Squirrel",
"timestamp": "2010-11-22T19:00:38",
"content": "When I saw ridiculous exerciser, the first thing that came to mind was the shake weight",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216547",
"author": "antitroll?",
"timestamp": "2010-11-22T19:05:37",
"content": "The power ball is not a useless device, I own one and use it every day. The results are extremely noticeable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216556",
"author": "Fallen",
"timestamp": "2010-11-22T19:11:43",
"content": "Shake weight would get the job done. And it would give you a nice refreshing splash once the phone is charged. :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216571",
"author": "sd",
"timestamp": "2010-11-22T19:28:20",
"content": "+1 for the Powerball. I have one on the mantelpiece right now. It passes the time when I’m waiting for the missus to get ready before we go out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216576",
"author": "Filespace",
"timestamp": "2010-11-22T19:43:11",
"content": "@fallen You saw that south park episode about the shake weight too!…ROFLMAO",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216579",
"author": "svofski",
"timestamp": "2010-11-22T19:48:57",
"content": "Powerballs are super awesome. Don’t know what’s ridiculous about them, they are great toys. I have two.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216584",
"author": "colecoman1982",
"timestamp": "2010-11-22T19:51:34",
"content": "Entering sleep mode…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216586",
"author": "Jive",
"timestamp": "2010-11-22T19:53:22",
"content": "Powerballs are great, and you really can’t understand how it works till you have tried one. By the time you get it up to operating RPM, it takes all the muscles in your forearm to keep it going. Do it for 5 minutes, and your entire arm aches. I bought one about 5 years ago, and always wondered why someone didn’t convert one into a charger. Great write up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216591",
"author": "loki233",
"timestamp": "2010-11-22T19:59:43",
"content": "yeah these things are really good, the first time you try one you’ll be feeling worn out within a minute",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216593",
"author": "lee",
"timestamp": "2010-11-22T20:01:12",
"content": "@loki233 that’s what she said…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216622",
"author": "Piku",
"timestamp": "2010-11-22T20:29:51",
"content": "Huh? you’ve never heard of a Powerball before?… and you claim to be a tech blog. Did you never read Slashdot or visit ThinkGeek when these things were popular?I’ve got one, it sits on the mantlepiece along with some buckyballs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216625",
"author": "Ivan",
"timestamp": "2010-11-22T20:33:57",
"content": "Long live the powerball! How come you’ve never heard of it? This fascinating display of Newtonian physics is even for sale on thinkgeek. Geeks love gyroscopes, so do hackers :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216626",
"author": "John Laur",
"timestamp": "2010-11-22T20:38:35",
"content": "The powerballs have a magnet inside them already and there is a little RPM counter you can snap into the top.They used to sell an ISA card and wired sensors that would plug into up to 4 powerballs and display the RPMs in realtime on the screen so you could have competitions. I have one somewhere; it was a lot of fun. It would be rather easy to duplicate the functionality of this system these days with a small microcontroller and a few hall effect sensors. Maybe I’ll dig it out and try it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216646",
"author": "MrX",
"timestamp": "2010-11-22T21:09:44",
"content": "Like many I also own a powerball. I find it impressive that TFA calls it a ridiculous device. One might look ridiculous (wanker) while exercising with it, however I promise that the results are serious. I use it regularly to complement push-ups.One thing that this little ball can do that no other exercising device can is shaping of wrist muscles, these muscles are really difficult to exercise.+1 for powerball",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216655",
"author": "ferdi",
"timestamp": "2010-11-22T21:44:20",
"content": "i belive this balls are original made for astonouts to train in space pepole that use the ball no how hevy it can by to train whit itit looks of you have havy ball off steel that will fly out off your hand do to the g force generaat by the steel ringnice bild",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216668",
"author": "James",
"timestamp": "2010-11-22T22:32:14",
"content": "Powerballs are great and make a massive difference to wrist strength for things like badminton/tennis. But I can see why they might look like something from bidupTV.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216676",
"author": "ehrichweiss",
"timestamp": "2010-11-22T22:43:34",
"content": "I thought of the generator aspect years ago when I first got my Powerball, so this is great. That said, “ridiculous”?!?!? Seriously? Those things are awesome. You can’t even begin to describe how well they work until you’ve used one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216687",
"author": "Michael",
"timestamp": "2010-11-22T23:06:05",
"content": "The powerball I’ve laying around even has a built-in generator, used to power a series of leds on the spinning ball that functions as a POV-display, showing your peak RPM. Using this power to charge a cellphone is quite a bit more useful of course!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216698",
"author": "James",
"timestamp": "2010-11-22T23:31:44",
"content": "I love the Dynaflex gyros! Really great for my carpal tunnel!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216755",
"author": "Jehu",
"timestamp": "2010-11-23T00:57:59",
"content": "Yeah, the Powerball Techno would be the way to go for a project like this. No need to take the ball apart to mount more magnets. I would be putting any more magnets in the rotor of one of these anyway. Too much risk of unbalancing it and at 15krpm I’d hate to be holding it if it breaks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216779",
"author": "Spork",
"timestamp": "2010-11-23T01:38:54",
"content": "@Jehu,You are worrying for no reason. Even if it were to break, it has momentum in a spinning motion. The result would be like a billiards ball that spins in place, even at 15k RPM in your hand, the worst that happens is it falls out and rolls on the floor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216793",
"author": "Fallen",
"timestamp": "2010-11-23T02:31:44",
"content": "@Spork, I think he was refering to the rotor holding the magnets breaking, not the outer shell. I’m pretty sure that if that rotor broke those magnets would fly outwards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216841",
"author": "Anon",
"timestamp": "2010-11-23T05:40:53",
"content": "Cool idea, but a small switchmode regulator will waste much less energy than a 7805 linear.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216926",
"author": "kanamycin",
"timestamp": "2010-11-23T07:58:51",
"content": "POWERBALLLMAO that video is hilarious!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216983",
"author": "elektrophreak",
"timestamp": "2010-11-23T08:39:48",
"content": "i have this gyroball thing, i will give it a shot :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217007",
"author": "NatureTM",
"timestamp": "2010-11-23T09:21:51",
"content": "You can’t say it better in less words. “Ridiculous exerciser becomes useful as a charger”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217041",
"author": "element_leader",
"timestamp": "2010-11-23T10:21:50",
"content": "Wouldn’t Fushigi make a better charger? It has like magic and s#it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217143",
"author": "Jehu",
"timestamp": "2010-11-23T15:05:45",
"content": "@Fallen. Exactly. The outer shell of these things is pretty tough but the rotor is the bit I would be worried about. Even at 7krpm the rotor can bite your hand. I know, I have one. Having a few shards of Nickle plated NeFeBo flying around in there and a cracked rotor would not treat your hand very nicely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217185",
"author": "Munkeegutz",
"timestamp": "2010-11-23T17:10:43",
"content": "I am an avid rock climber, and these things are excellent. Definitely not infomercial material!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217234",
"author": "Scott",
"timestamp": "2010-11-23T18:47:26",
"content": "@Jehu. The rotors actually have an .25″ thick aluminum sleeve in them that spans the circumference, so I think there’s very little chance of the rotor cracking all the way through. I’ve had the magnets pop out of the spokes while the thing was running, but it didn’t do much more than make a terrible rattling sound and slow the rotor to a stop.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217237",
"author": "effigy",
"timestamp": "2010-11-23T19:00:28",
"content": "@ferdi, that was a cute attempt at english",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217250",
"author": "Whatnot",
"timestamp": "2010-11-23T19:14:58",
"content": "It’s odd to see ferdi’s english, normally the dutch don’t have much trouble with it.And it’s also odd that he doesn’t use firefox with the english dictionary for spellcheck, but that’s not that uncommon as we all know ;)But it’s still clear enough and it makes his posts stand out. Actually.. come to think of it – maybe it’s all some trick to get noticed, that would be sort of clever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217700",
"author": "DanAdamKOF",
"timestamp": "2010-11-24T14:02:39",
"content": "Kinda offtpoic but I love that the background song for the Powerball video is Svenson & Gielen’s “The Beauty Of Silence”. I play that song a lot in beatmania IIDX.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218054",
"author": "Ozzy_Coff",
"timestamp": "2010-11-25T01:58:00",
"content": "So we could take this idea and use the concept of producing electricity from gyroscopic rotational devices and use it on a larger scale. Where could this idea else be used you may ask, well after watching this idea I thought this project could be scaled up and used in gymnasiums everywhere. Potentially exploitable human produced energy is wasted at gyms where people could power theses generators! Am I brilliant or what? Of course this would require new designed equipment but if mass produced this could be very positive in the search for a greener future.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219240",
"author": "alex",
"timestamp": "2010-11-26T17:31:57",
"content": "+1 for the power-ball. It is really great for developing wrist strength which is critical for rock climbing. I had a friend who broke his arm as was prescribed one of these to regain his strength.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3554034",
"author": "James Rowley",
"timestamp": "2017-05-05T16:10:50",
"content": "Does anyone know what the two components are on the board of the powerball – are they tiny induction coils?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3555316",
"author": "Scott",
"timestamp": "2017-05-06T17:39:02",
"content": "Yep, they’re just coils of magnet wire I wound around a mandrel with the help of a power drill. It took some trial and error to get the number of winds right. The AC voltage out of the coils increases with the number of winds, and the linear regulator I was using needed ~6V or more to regulate down to 5V properly.",
"parent_id": "3554034",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "6382017",
"author": "charlie devage",
"timestamp": "2021-09-18T15:43:49",
"content": ".",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.629917
|
||
https://hackaday.com/2010/11/21/smartlcd-makes-video-for-microcontrollers-easy/
|
SmartLCD Makes Video For Microcontrollers Easy
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"2g",
"arm",
"cortex",
"ipod",
"m0",
"nano",
"smartlcd",
"tft"
] |
[Rossum] developed a host board that makes it easy to
drive a TFT screen using an inexpensive microcontroller
. He’s
looked around at a bunch of LCD’s
that are easy to get your hands on and decided that the iPod Nano 2G screens are the right balance of performance (176×132 TFT) and low cost ($1-$5). They’re not particularly difficult to talk to, but with 22 pins they’re a bit hardware hungry.
He takes us through the signal sniffing he used to figure out the communications process. From there he harness the power of an ARM Cortex M0 processor, which he’s
worked with in the past
, to drive the screen. His implementation results in a driver board called the SmartLCD that takes care of the screen’s parallel protocol, power, and backlight. From there it’s just four connections and you can use a small microcontroller like the Arduino seen above with ease. See what it can do after the break.
[youtube=http://www.youtube.com/watch?v=sQVbI7Ss4ns&w=470]
| 28
| 27
|
[
{
"comment_id": "216158",
"author": "Solderguy",
"timestamp": "2010-11-21T23:37:33",
"content": "Mini XBMC here we come!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216171",
"author": "Roberto",
"timestamp": "2010-11-22T00:35:56",
"content": "Why would you want the arduino for, if you get one of these beauties?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216183",
"author": "hekilledmywire",
"timestamp": "2010-11-22T00:52:33",
"content": "A lot of people use arduinos, and almost anyone use arm’s, and a lot of people want fancy lcd’s.. so maybe sell then(the smartlcd’s) for a little profit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216200",
"author": "Will",
"timestamp": "2010-11-22T02:05:39",
"content": "If anyone notices this is a similar setup to a normal PC. also make it a little stronger (Arm cortex M4) and u get a full microcontroller",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216244",
"author": "Javajunkie",
"timestamp": "2010-11-22T02:42:40",
"content": "@robertoIt looks more cool to the un-initiated if it has an arduino.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216249",
"author": "BiOzZ",
"timestamp": "2010-11-22T02:52:33",
"content": "@Robertohave what? … this is the arduino",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216251",
"author": "macw",
"timestamp": "2010-11-22T02:59:58",
"content": "@roberto what he’s created is just the driver board. It takes an input signal and draws it on the LCD…you still need a way of sending inputs to the driver itself. That’s what the arduino is doing here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216362",
"author": "Greg",
"timestamp": "2010-11-22T10:11:03",
"content": "No, he’s created a stand alone device that happens to accept serial/SPI input from arduinos/low powered micros. in the video he separated it from the arduino board and showed it running with the battery stand alone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216364",
"author": "nes",
"timestamp": "2010-11-22T10:41:44",
"content": "Sweet project! Good to learn the source of the cheapest TFTs in the world too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216386",
"author": "Lupin",
"timestamp": "2010-11-22T11:56:35",
"content": "What Roberto wanted to say is that the driver board has more power than the arduino board and could do all the tasks of the arduino while handling the display.In the post it sounds as if he’d have interfaced an iPod display, but I think he interfaced a display of another, less expensive MP3 player.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216422",
"author": "M4CGYV3R",
"timestamp": "2010-11-22T14:14:35",
"content": "I love how that demonstration proves the Arduino useless. When he completely detaches the screen and driver, it keeps running.This means that aside from sending data to the device, the arduino does NOTHING.Love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216432",
"author": "fartface",
"timestamp": "2010-11-22T14:58:27",
"content": "And they are not wide temperature range so they are useless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216436",
"author": "Andreas",
"timestamp": "2010-11-22T15:06:46",
"content": "Does anyone know where one can buy cheap TFTs without relying on ebay deals and such? I’m thinking about making and selling a little project with displays, and need a place where I can come back and buy some more of the same screen if I decide to make another batch, for example.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216467",
"author": "Gdogg",
"timestamp": "2010-11-22T15:58:45",
"content": "I’m with robert here. I like the arduino, but here he has everything he needs in the cortex itself. Seems ridiculous to buy one of these then hook it up to a little microcontroller to drive it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216472",
"author": "JB",
"timestamp": "2010-11-22T16:08:02",
"content": "@M4CGYV3R & fartfaceWell, he did mention that you can use it with USB or any other controller, and that the display controller could “reprogram the Arduino”.From the looks of it, it seems that he wants to sell these boards and displays to be used by hobbyists, and mentions Arduino because so many people use them. The built in controller seems powerful enough to handle the display and some application without external help.Now we need a reliable “non-ebay” source of the displays. A place where we can go back and be able to get the same display every time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216477",
"author": "andfred",
"timestamp": "2010-11-22T16:19:00",
"content": "How does a display driver board supersede some random microcontroller X? Sure, the Cortex can probably do everything the arduino can do, unless you need to use an arduino. =)There are an awful lot of plug-and-play hardware modules and software libraries you’d have to abandon if you were an arduino programmer who wanted to migrate to this ARM board. And how many I/O lines are left on the Cortex after it’s been mated to the TFT panel? What if you already have a system built using architecture X, and you just need a display with a simple interface?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216508",
"author": "hexmonkey",
"timestamp": "2010-11-22T18:01:00",
"content": "@Andreas: get LCDs here:http://www.sparkfun.com/categories/76",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216536",
"author": "knox",
"timestamp": "2010-11-22T18:53:23",
"content": "Could this be used with LCD Smartie?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216615",
"author": "Andreas",
"timestamp": "2010-11-22T20:07:22",
"content": "@hexmonkeyNone of those even come close to the price/value ratio of the $1-$5 ebay prices he mentions, or the “$2 in china”-displays. Getting down to those prices is obviously unrealistic in small quantities, but I’m hoping it’s possible to do a little better than the sparkfun prices.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216667",
"author": "BitMage",
"timestamp": "2010-11-22T22:28:50",
"content": "“he harness the power” should be “he harnessES the power”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216890",
"author": "RandomCommentor",
"timestamp": "2010-11-23T07:18:31",
"content": "Why don’t we just create an integrated, open source, fully integrated, low cost microcontroller that acts, in effect, as a small computer?A beefier arduino with a built in LCD screen, ethernet, wifi, buttons, ram, sd card capability, and the like? For $50. You can get entire atom based computers for $100.Is there any compelling reason why this can’t happen with today’s technology?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1030354",
"author": "Hack Man",
"timestamp": "2013-07-24T13:17:54",
"content": "3 years later, Raspberry Pi!",
"parent_id": "216890",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "216971",
"author": "ColinB",
"timestamp": "2010-11-23T08:25:13",
"content": "Rossum is bursting with awesome! Every time I see an amazing hack from him, I can’t wait to see what he comes up with next.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217174",
"author": "Whatnot",
"timestamp": "2010-11-23T16:32:55",
"content": "I wonder if we can thank apple for the current broad interest in hacking things.Because apple made it so that people felt that you HAD to have an iphone and such and the problem is that that iphone (and other such devices) is so limited until you hack it, thereby making hacking stuff more broadly popular.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217186",
"author": "hekilledmywire",
"timestamp": "2010-11-23T17:15:00",
"content": "@RandomCommentorWell, thats called a bealgeboard, but it costs 150$",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218117",
"author": "heh",
"timestamp": "2010-11-25T03:24:27",
"content": "The ARM MCU makes the arduino pointless indeed. Anything the aduino does the ARM Cortex could handle anyway.And this way, you don’t have to bother routing 2 PCBs, dealing with communications between 2 MCUs and everything.Not using an arduino would also cut costs. I mean, having to add a fancy driver board already drives up the cost of the cheapo LCD (a nicer LCD might have been easier to use for not much more anyway), and now you add a 2nd MCU and another PCB…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220814",
"author": "Daniel",
"timestamp": "2010-11-29T13:44:09",
"content": "Nice product for the beginners, shame that they will never really get to know the LCD’s though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "338382",
"author": "T.C.",
"timestamp": "2011-02-21T00:29:39",
"content": "Would be great if I could hook up the controller to a 5″ intec LCD screen. Have one from a Gamecube screen that the composite controller fried. screen and backlight still good. Would love to find a vga adaptor for this.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.692499
|
||
https://hackaday.com/2010/11/21/led-wall-and-kinect-join-forces/
|
LED Wall And Kinect Join Forces
|
Mike Szczys
|
[
"Kinect hacks",
"LED Hacks"
] |
[
"3d",
"Kinect",
"ping pong",
"processing",
"video",
"wall",
"xbox"
] |
[Alex] wrote in to let us know about this
Kinect controlled LED wall
that was whipped up at the
Tetalab hackerspace
in Toulouse, France. The wall, which was built earlier in the year, uses some MAX7313 LED intensity controlling shift registers. Each gets its own board and controls the intensity of sixteen different red LEDs. They’re embedded in the wall module and
covered with ping-pong balls
as diffusers.
The recent activity on the project takes advantage of the Xbox Kinect. As you can see in the video after the break,
they’ve used the open source Kinect drivers to capture 3D environment data
, processing it into color gradients which are displayed on the Pong wall. Shouldn’t be long before they someone comes knocking on their door to install this in a dance club. We love the effect, especially because it works in a dark room and the LEDs don’t cause any interference with the video capture.
Kinect controlled:
[youtube=http://www.youtube.com/watch?v=SWTvYQtvLHI&w=470]
Processing tests on Ping Pong wall:
[vimeo=http://vimeo.com/12441790]
| 11
| 11
|
[
{
"comment_id": "216119",
"author": "alias",
"timestamp": "2010-11-21T22:14:39",
"content": "http://www.youtube.com/watch?v=V9AySS3Ff2YSet it up in there, would be awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216133",
"author": "Phil",
"timestamp": "2010-11-21T22:37:15",
"content": "Thats awsome. Those Guys rock!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216143",
"author": "Hirudinea",
"timestamp": "2010-11-21T23:05:20",
"content": "Les funky!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216144",
"author": "D_",
"timestamp": "2010-11-21T23:07:49",
"content": "Dance club? I’m not sure this has the resolution to capture a chick who can REALLY shake her booty. Then again this could transform her shaking into a truly bizarre image",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216326",
"author": "rasz",
"timestamp": "2010-11-22T07:08:53",
"content": "Look, Kinect is the new iPhone!WTF is this, they used video feed of a webcam and claim Kinect hack? …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216344",
"author": "fab",
"timestamp": "2010-11-22T08:43:44",
"content": "@rasz This not a webcam feed the brightness changes with kinect depth",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216365",
"author": "Lionel",
"timestamp": "2010-11-22T10:44:07",
"content": "@D_The resolution could be improved, the limit is 1024 PWM leds driven (64 MAX7313 x 16 leds) on each I2C bus.We just stop to 432 led (16×27) because we had a free bag of 500 toshiba TLRH180P red led… that’s all@raszWe did not claim hacking the kinect, we wanted to use the fresh open drivers as depth measurement to render it on our ledwall.And using a video feed of a webcam as already been done by our team about 6 month ago…And really big thank’s to the DDF team who inspire us this collaborative work and all the people working on liberating the kinect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216369",
"author": "KayDat",
"timestamp": "2010-11-22T10:55:22",
"content": "@raszA regular camera would only be able to capture colour/tone and brightness. Kinect detects 3D, so the closer you are, the brighter the LEDs will be on the wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216377",
"author": "Entropia",
"timestamp": "2010-11-22T11:25:22",
"content": "Unimpressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216486",
"author": "IJ Dee-Vo",
"timestamp": "2010-11-22T17:05:23",
"content": "Most impressive",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216697",
"author": "Da 1 Guy",
"timestamp": "2010-11-22T23:30:55",
"content": "that makes me wonder if anyone could use this concept, but ise servos to rotate the balls, have them divided into three colors or shades(white led mounted inside the colors could be primary and the ammount of light to change shades& black), kind of based on the compas tabe i saw on instructables",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.198301
|
||
https://hackaday.com/2010/11/21/motion-activated-wildlife-camera-or-a-spy-device/
|
Motion Activated Wildlife Camera (or A Spy Device)
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"air freshener",
"camera",
"motion",
"pir",
"sensor"
] |
Now you can capture pictures of our furry friends by
building a motion activated wildlife camera
. [Doug Paradis] took
his Air Freshener hack
and used it to trigger a camera. The white dome in the picture above is the PIR sensor from an Air Wick Freshmatic, along with a cheap keychain camera and an MSP430 microcontroller. He used one of the chips that came with
the TI Launchpad
, a transistor, and some discreet components to interface the devices and then put them into a project box. Now he’s got a fully configurable motion-sensing camera.
| 20
| 20
|
[
{
"comment_id": "216107",
"author": "Manjeet Dahiya",
"timestamp": "2010-11-21T21:29:11",
"content": "Cool! Nice one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216146",
"author": "ChrisE",
"timestamp": "2010-11-21T23:11:07",
"content": "OWM, I just finished making something similar. It uses a cheap key-chain video camera, PIR, PIC12F675, 12V SLA and a cheap remote RX/TX.The camera and PIR are camo-ed, and textured with a solder iron. The RF remote is used to indicate when the PIR trips for setup.I want to install it out in the bush where I ride my horses.Cool project!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216192",
"author": "Michael",
"timestamp": "2010-11-22T01:26:34",
"content": "Nice project, but instructables has made it impossible to follow with all their panhandling for $$$ on every step, blocking the extra pictures unless you pay up, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216243",
"author": "aboxman",
"timestamp": "2010-11-22T02:38:18",
"content": "There is a whole forum dedicated to making these types of cameras.http://www.jesseshunting.com/forums/game-trail-cameras-camcorders/And check out his original project with many links to specific setups.http://www.jesseshunting.com/site/homebrew-cams.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216253",
"author": "BiOzZ",
"timestamp": "2010-11-22T03:09:22",
"content": "wow we used to use things like this before we go out and hunt to make sure there are deer and no bears XD$60 in parts VS a $900 unit is great but it would be nice to have something you can slip a camera in to so you can review the pics on spot and spare having to take apart a $150 camera XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216288",
"author": "Whatnot",
"timestamp": "2010-11-22T04:34:17",
"content": "Motion sensing in nature will get you a lot of images of waving leaves.But that’s why he uses it on his stone patio to snap squirrels of course.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216335",
"author": "Amos",
"timestamp": "2010-11-22T07:57:46",
"content": "@Whatnot: PIR sensors work by detecting quickly changing heat levels (the “IR” in “PIR”) and, last time I checked, trees are not warm-blooded :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216354",
"author": "BiOzZ",
"timestamp": "2010-11-22T09:17:50",
"content": "@WhatnotPIR is Passive infrared and it detects when overall heat in its sensing area shows heat added above a threshold so leaves wont do anything you need something of decent size (like larger than a dog) that has a body temp above its threshold compared to the backgroundso it wont pick up rodents, moving leaves, zombies or environmental overall heat change but it will occasionally pick up the sun threw leaves but it will also work in pitch blackness",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216360",
"author": "Hitek146",
"timestamp": "2010-11-22T09:52:03",
"content": "Nice hack, but they already have these for $30-$50 at Wal-Mart, in a custom sealed enclosure…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216367",
"author": "strider_mt2k",
"timestamp": "2010-11-22T10:51:47",
"content": "a clue for Hitek146:This is a hacking site, not a shopping site.The giggles here are found in the DOING as well as the USING.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216435",
"author": "Whatnot",
"timestamp": "2010-11-22T15:04:04",
"content": "I know how PIR works, it settles on the surroundings to a stable state then gives a signal when there is change, so yes objects that are not alive will still trigger it because of reflections, and plants of course also absorb light and its energy so leaves will have a different temperature than stone for instance, look at pictures or video in IR to see that, and although they are less warm than animals the PIR sensor will settle on the surrounding base state and respond to changes and most all objects have some IR signature.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216557",
"author": "Hitek146",
"timestamp": "2010-11-22T19:14:30",
"content": "@strider_mt2k:Thanks, but I don’t need your “clue”, as I have been doing this sort of thing myself for 25 years, and I completely understand the joy of creating for the sake of the experience and challenge. I was simply pointing out that these are readily available for those people out there that want this sort of thing, but don’t want to bother building one…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216833",
"author": "walt",
"timestamp": "2010-11-23T05:00:14",
"content": "I would have liked to read more about this, but it’s on instructables which sux! instructables BOOOO!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216981",
"author": "Universaljoint",
"timestamp": "2010-11-23T08:37:31",
"content": "@Hitek146Well put. This is a dilemma I’ve often run into when contemplating a project — often there is a commercial product that will do the same thing, do it better, and do it more cheaply.Come to think of it, that’s probably the reason why we read hacking websites, not “build it ourselves from scratch” websites…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217122",
"author": "Stone",
"timestamp": "2010-11-23T14:03:59",
"content": "Discreet components? Sure you don’t mean ‘discrete’? ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217388",
"author": "element_leader",
"timestamp": "2010-11-24T01:31:38",
"content": "Even if you buy a camera, you probably still get to “hack” something together to put it in. Assholes will steal it. They have to since you have pictures of them poaching on your property.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218937",
"author": "GRabo",
"timestamp": "2010-11-26T04:27:49",
"content": "I can just imagine the “wild life” you would be able to capture.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "623415",
"author": "paulo",
"timestamp": "2012-04-07T15:48:55",
"content": "hello, someone can tell me who i can put some text and crosshair in cctv camera.thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1075070",
"author": "bowhunting tips",
"timestamp": "2013-10-14T00:46:20",
"content": "That is definitely awesome. We’ve been bowhunting for ages and by no means considered this technique. It is undoubtedly something to consider. Thanks all over again and good luck with all your season",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6167992",
"author": "Blake",
"timestamp": "2019-07-28T17:17:48",
"content": "Anybody know how to make signify wildlife camera record constantly or stream to a tv or monitor? Can it even be done",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.91943
|
||
https://hackaday.com/2010/11/21/adding-pan-and-tilt-to-a-webcam/
|
Adding Pan And Tilt To A Webcam
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"08m",
"ir",
"picax",
"remote control",
"servo",
"webcam"
] |
[Brent] and his wife wanted a way to provide more family time for Grandparents that lived far away. They tried a webcam, but their daughter just didn’t oblige by staying in the frame. Instead of chasing her around the room with with the camera
he added pan and tilt features to the device
. He settled on IR control using a common television remote, similar to our
USB remote control receiver tutorial
except that it drives servo motors instead of forwarding signals over the serial connection. [Brent] used a Picaxe 08M, connecting two servos together as a base on top of the project box. If you try this yourself there’s a lot of room to grow. Once you’ve assembled the hardware it wouldn’t be too hard to make this web enabled so that Grandpa can click on a web interface to look around the room.
| 11
| 11
|
[
{
"comment_id": "216031",
"author": "Abbott",
"timestamp": "2010-11-21T17:46:03",
"content": "Cool! Nice and (fairly) simple, I like it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216073",
"author": "PCB Assembly",
"timestamp": "2010-11-21T19:32:22",
"content": "Slick idea!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216093",
"author": "Beige",
"timestamp": "2010-11-21T20:39:50",
"content": "Ultimately you could allow control over the internet, perhaps using serial from the PC which would host a page with controls. Grandpa could then pan and tilt adding an extra bit of interactivity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216120",
"author": "cmholm",
"timestamp": "2010-11-21T22:18:10",
"content": "For web-based steering, an alternative would be a couple of Phidgets-controlled servos via one of their language interfaces, Java or Python being the most obvious. They used to support Perl, but I didn’t put enough work into a CGI to get it working remotely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216154",
"author": "davi jordan",
"timestamp": "2010-11-21T23:25:21",
"content": "Thanx for the code. I needed some good code for servos. I plan to translate it to freebasic and use the parallel port for servo control. Give the web server something else to do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216316",
"author": "Whatnot",
"timestamp": "2010-11-22T06:38:20",
"content": "Pity he also relies on the webcam for pictures of the project.He needs to treat himself to something better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216338",
"author": "Brent",
"timestamp": "2010-11-22T08:26:32",
"content": "Whatnot, you’re absolutely right and I have replaced the pictures and added several others of much better quality.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216368",
"author": "strider_mt2k",
"timestamp": "2010-11-22T10:53:44",
"content": "I’ve used paired servos for a P/T camera mount and it works remarkably well.I worked my own up and used it on a couple of wheeled ROVs with great success.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216510",
"author": "lukethemachine",
"timestamp": "2010-11-22T18:07:58",
"content": "Weird Deja-vu, I actually just finished my own version of this kind of thing yesterday:http://stonelinks.org/archives/856Unfortunately it is more me ranting about an idea I had, but you get the basic idea of what is going on from the pictures. If people are interested I’d do a tech write up / provide code.I’m using php (sorry everyone) to communicate with the MC, mjpg-streamer for the video feed, and ajax/jquery to make everything look awesome. I have plans to expand the whole thing out into an awesome robot if I get time over winter break.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216621",
"author": "Anonymous",
"timestamp": "2010-11-22T20:29:12",
"content": "but does it tweet?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "257147",
"author": "keen101",
"timestamp": "2010-12-06T11:15:11",
"content": "just use two pir motion sensors to actually track the girl. It’s in the 101 spy gadgets for evil geniuses book. (page 90)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,330.865729
|
||
https://hackaday.com/2010/11/20/retro-adapter-for-canon-slr/
|
Retro Adapter For Canon SLR
|
Chris Nelson
|
[
"classic hacks",
"digital cameras hacks"
] |
[
"camera",
"macro"
] |
[calculon] was able to modify a “dumb” adapter to allow his Canon SLR to use the aperture and focus on a
retro lens
. With his new flip mounted wide angle lens he was able to achieve some pretty neat macro shots. By cutting away some of the cheaper ring he was able to feed the wire through and glue it onto the the cameras contact points. The wire was then attached to the inputs on the “new” lens. With a new adapter running about $375 not only was this a neat little hack but it was also a money saver. You can see some more of his photos on his
flicker
| 19
| 19
|
[
{
"comment_id": "215495",
"author": "Fallen",
"timestamp": "2010-11-20T18:10:03",
"content": "Holy macro batman.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215500",
"author": "JB",
"timestamp": "2010-11-20T18:33:01",
"content": "Not bad at all for the money. I have a “real” macro lens and while the quality is better (and it can magnify more) this is a good idea for an old “unused” lens one may have laying around. The savings alone are worth it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215512",
"author": "BiOzZ",
"timestamp": "2010-11-20T19:19:34",
"content": "what ever happened to the good old extension tubes XD2 36mm extention tubes and a 2X TC (not necessary but makes it easier) and a nikon F-mount manual AF lens has never failed me once",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215662",
"author": "loans",
"timestamp": "2010-11-21T00:58:20",
"content": "i’ve never understood the use of such wide lenses for macro work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215691",
"author": "DivePeak",
"timestamp": "2010-11-21T02:24:24",
"content": "BiOzZ – the problem is that most extention tubes and bellows are not automatic – you typically get electronics passed through to the lens only when you’re spending hundreds of dollars more. I have a bellows for my Canon, but I’ve hacked together an adapter to mount an old Olympus lens (from an OM10) on it because it can be stopped down manually. I’ll definitely look into doing something like this for it so I can use my much better Canon lenses.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215696",
"author": "BiOzZ",
"timestamp": "2010-11-21T02:47:39",
"content": "@DivePeaki both my extension tubes (none have names on them) are both bridged and work fine automatic and the 2X tele is a nikon makei had the option for other lens makes like sigma and canon (i have a canon 5D MKII sitting around) but im a huge fan of the nikon quality of a nikon lens on a nikon camera so extension tubes work great for me on my D90, D300s, D3xand im really iffy about the filter threads being able to hold up a decent quality lens (like a 67mm or 72mm or 77mm circumference) … like my 24-77 2.8 weighs 2.5 lbs and i would not doubt a jolt or a bump would strip it and make $2k of lens go crashing to the ground XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215700",
"author": "lamer",
"timestamp": "2010-11-21T03:13:34",
"content": "BiOzZ:seriously…i do better babelfish on my ti85!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215753",
"author": "Whatnot",
"timestamp": "2010-11-21T07:33:56",
"content": "@BiOzZ You sure sound like the person who needs money saving hacks alright… not",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215827",
"author": "macw",
"timestamp": "2010-11-21T10:03:04",
"content": "Don’t worry guys, BiOzZ just likes to namedrop all the hardware he has to make up for where he doesn’t have as much ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215901",
"author": "Garbz",
"timestamp": "2010-11-21T12:37:14",
"content": "@BiOzZ You clearly have never dropped a lens onto it’s front element if you think that the weight of a decent quality lens will strip the threads of the filter mount. The filter threads will easily hold the largest lens you can think of a normal person owning with a monkey hanging off the end.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215989",
"author": "localroger",
"timestamp": "2010-11-21T15:45:26",
"content": "Filter threads are stronger than a bayonet lens mount.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216061",
"author": "stunmonkey",
"timestamp": "2010-11-21T18:50:52",
"content": "This is an interesting hack from the technical perspective, but why do you want what it does?The fact is you don’t need electronics to take a picture, and you definitely don’t need or even really want them for macro work.Why go through all of this? So you can have autofocus? Why?Use any old $5 junk shop manual SLR lens regardless of mount type – its on backwards remember? I use a $15 Rodenstock enlarger lens myself, they have filter threads too remember.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216081",
"author": "Nomad",
"timestamp": "2010-11-21T19:51:05",
"content": "stunmonkey: go try controlling the aperture of a Digital Lens without having the data connection to it.FYI: Aperture is INSIDE of the Lens and (on digital lenses) can’t be controlled without data and especially power connection.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216082",
"author": "Nomad",
"timestamp": "2010-11-21T19:55:15",
"content": "PS: not everyone (and especially not every bug on a nice plant) hast the time to set up all the stuff like AF, Aperture, Shutter, etc.So if you want to go fast, then you are better off using at least automatic aperture.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216252",
"author": "BiOzZ",
"timestamp": "2010-11-22T03:04:34",
"content": "@Garbz1) yes i have on one of my canon cameras and it stripped my CPL filter right off@macwdoes trolling make you feel like more of a man?god i love the internet XDi was talking photography to a fellow photographer and i was talking about one specific lens so please relevant comments only i know the internet makes you feel tough but some things you keep to your self",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216291",
"author": "DivePeak",
"timestamp": "2010-11-22T04:55:18",
"content": "@BiOzZ – lucky you if you got working auto extension tubes for a decent price. :)A 77mm filter won’t fit centered on the bayonet mount of that camera – it will hit the flash first! But the EF-S lens that’s being used (I’m guessing either 52mm or 55mm?) would be lucky to weigh in at 500g, so the filter should be plenty strong enough. And if quality is the absolute #1 factor, you wouldn’t be reversing lenses in the first place, but using a dedicated macro. Of course, there goes the $ saving purpose of doing the hack in the first place… Happy shooting!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216371",
"author": "Garbz",
"timestamp": "2010-11-22T11:05:03",
"content": "@BiOzZ unlucky. Sounds like you may need to check the accuracy of your threads. When standard threads mate properly they are amongst the strongest bonds in engineering.I dropped D200 + bat grip + 85mm f/1.4 onto cement from about 1m right on the filter. Combined weight of 1.5kg. Filter shattered and the ring had the black scuffed off it and dented, but no threads slipped and it was possible to screw it off again.My girl dropped her Olympus in the same fashion, the result caused a single thread slip, but that was to be expected of a plastic lens.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216861",
"author": "colorbroken",
"timestamp": "2010-11-23T06:34:34",
"content": "http://www.camerahacker.com/directory/Hacks.shtmlThis is a full lesson listed in the book authored by this website… Explains the entire process, how and why you want to do it. Just sayin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217129",
"author": "Bram",
"timestamp": "2010-11-23T14:32:50",
"content": "Wait..That lens has a rotating front element when focussing, seems like a bad idea to use the AF then, or is it not used at all?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.069923
|
||
https://hackaday.com/2010/11/20/beginner-concepts-powering-your-projects/
|
Beginner Concepts: Powering Your Projects
|
Chris Nelson
|
[
"classic hacks",
"hardware",
"how-to"
] |
[
"power supply",
"voltage regulator",
"zener"
] |
Powering your gadgets generally seems like a necessary evil. To help with this [Felipe La Rotta] made a really nice
bench power supply
using a PC power supply and a LM317 adjustable voltage regulator. PC power supplies are an example of a switched power supply(more on that later). The LM317 is a type of linear voltage regulator that allows for adjusting the output voltage by varying some resistors. Whats the best way to power your circuits? well that depends…
Usually the first step for powering your product is batteries, they are easy, cheap, and can be strung together to get a voltage close enough to what you need (hey sometimes it doesn’t really matter that much). But What do you do when your super picky sensor only accepts 3.3V? A quick and dirty
voltage divider
will bring the battery voltage down to 3.3V.
Unfortunately the more the sensor pulls on the divider the farther from 3.3V it will be. This is the basic principle of load regulation. The general idea is that the more current you need the farther off your voltage will be. Well what if there was a buffer in there so that the circuit doesn’t affect the voltage divider at all. Maybe something like this.
But then after a day or so the sensor isn’t sensing very accurately. The voltage going into the sensor is now only 2.8V. This is the second problem with a voltage divider; it’s sensitive to the supply voltage. This is called line regulation. Basically as your battery voltage drops so will your output voltage. What would be useful is a voltage that doesn’t change, that way the output could be based on that. Here is where the
Zener diode
comes in. The voltage across a Zener is set when it’s made and it varies very little with respect to current (after it gets into breakdown). So now the Zener can be used as a reference, and then the OP-AMP buffers that to the output.
This is the general idea of how voltage regulators work. Luckily there is no need to make one of these for every project because companies sell them in nice little 3 pin packages. All you have to do is hook up ground, the unregulated voltage, and it will regulate the output on the third pin. Linear regulators address both load and line regulation and everybody’s happy, right? Well maybe not. Say a regulator takes in 9V from the battery and supplies 3.3V to a circuit and the circuit responds by drawing in 500mA. This means that the power going into the regulator is 9V*500mA = 4.5W and the power out of the regulator is approximately 3.3V*500mA=1.65W. What happened to the other 2.85W? It was burned off as heat inside of the voltage regulator. That means only about 57% of the power even makes it to the load; The rest is wasted.
Enter switched mode power supplies (like the one in your pc). These circuits are made using inductors, capacitors and switches (transistors) in order achieve much higher efficiencies. They work by constantly adjusting the current through an inductor resulting in higher or lower output voltages. Switching supplies may be more efficient but they are also more complex, harder to implement, and can be rather noisy circuits.
so generally:
voltage divider: very easy, cheap, bad regulation
Linear voltage regulators: easy, good regulation, poor efficiency
switching power supplies: hard, noisy, good efficiency
| 44
| 44
|
[
{
"comment_id": "215460",
"author": "brad",
"timestamp": "2010-11-20T16:25:25",
"content": "the schematics were nice; they make the concepts easier for the layman to understand, but isn’t the conclusion already a bit obvious?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215462",
"author": "Gustibus",
"timestamp": "2010-11-20T16:33:11",
"content": "Yes, it is a bit obvious. If you already know it; if you’re new to all this it’s a different matter I’d think.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215471",
"author": "localroger",
"timestamp": "2010-11-20T16:55:54",
"content": "You can also get switching supplies almost as convenient and cheap as linear regulator IC’s — check outhttp://bodhilabs.com/for a couple of examples.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215472",
"author": "Fallen",
"timestamp": "2010-11-20T16:58:12",
"content": "Good write up. I’m a fan of these beginners concepts posts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215474",
"author": "Miroslav",
"timestamp": "2010-11-20T17:11:41",
"content": "@localrogerNot sure if your link is wrong, but those are not the same “classes” of devices. bodhilabs.com (at list the stuff on that web site) sells DC/DC converters that let you use (expensive) batteries to power (mostly) low power devices.What Chris did here is a happy mariage of a switching power supply (to lower the voltage and isolate form the main supply (110VAC) and linear regulator to enable him to regulate the output voltage. SO he, kind of, replaced the big, ugly, expensive transformer with some PC leftovers :)It would be cool if someone can provide a link or two to switching/variable AC/DC or DC/DC that covers usually needed range (lats say 0-30V, 3A), I could not find much usefull out there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215486",
"author": "emg",
"timestamp": "2010-11-20T18:04:36",
"content": "I can always find a regulated or even switched power supply with the ratings I want at the flea market. You can get a 5V@1A supply for $2 compared to $5 for 4 D cells. And its recycling!That being said, a bench supply made from recycled PSU would be awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215492",
"author": "jons",
"timestamp": "2010-11-20T18:08:56",
"content": "Linear regulators such as the famous LM317 are not that inefficient if the input voltage is carefully selected.Who is going to power a 3.3V uC or less with a 12V battery car except car makers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215499",
"author": "Hacksaw",
"timestamp": "2010-11-20T18:26:43",
"content": "I love that he put it in a drill case.I have about 10 of them that I refused to throw out… now I have a use for one anyway",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215502",
"author": "ColinB",
"timestamp": "2010-11-20T18:42:19",
"content": "Chris Nelson wrote “This means that the power going into the regulator is 9V*500mA = 4.5W and the power out of the regulator is approximately 3.3V*500mA=1.65W. What happened to the other 2.85W? It was burned off as heat inside of the voltage regulator. That means only about 57% of the power even makes it to the load; The rest is wasted.”Actually it’s much worse than 57% efficiency:Total power input = 4.5 WPower used for useful work = 1.65 WEfficiency = 1.65 W / 4.5 W = approx. 37%So only 37% of the input power makes it to the load.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215503",
"author": "M4CGYV3R",
"timestamp": "2010-11-20T18:53:58",
"content": "I can get a 7805 voltage regulator one-off from the shack for $0.50, or order them in bulk for like $0.10 each. They take in a wide range of voltages and regulate it quite nicely to a steady 5v for digital circuits.I would suggest just using the premade pieces until you get very comfortable building your own voltage dividers/regulators.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215513",
"author": "shawn",
"timestamp": "2010-11-20T19:21:47",
"content": "I prefer the lm2576 for power regulation vs the lm7805. They provide more amperage, produce less heat and stay regulated under load.Curious if there is some reason people still lean to the lm7805 over an lm2576? (is it just less component count or cause every shack just has them hanging there?)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215515",
"author": "BiOzZ",
"timestamp": "2010-11-20T19:33:15",
"content": "keep in mind the voltage will drop when you put a load on the dividers because R2 will change its value when paralleled with a loadi find just using a PSU or batteries and regulators the easiest route for a stable supply",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215550",
"author": "Shift",
"timestamp": "2010-11-20T20:44:15",
"content": "Excellent! Is there a switched mode tutorial coming up?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215562",
"author": "smoker_dave",
"timestamp": "2010-11-20T21:13:43",
"content": "What would you hope to gain from a switched mode tutorial?Just go tohttp://www.linear.com/Enter your voltage input requirementsEnter your voltage output requirementsRead the datasheet of the resultsGo to your favourite parts supplier and purchase the components for a couple of ££It really is that simple.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215571",
"author": "cgimark",
"timestamp": "2010-11-20T21:32:31",
"content": "I prefer the zener diode and transistor approach. Not only is it cheap, but if you connect a bunch of zeners to a switch you can switch through different voltages. The zener controls the voltage and the transistor is used to handle the current loads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215584",
"author": "M4CGYV3R",
"timestamp": "2010-11-20T21:45:03",
"content": "@shawn It’s cheaper for me, and I don’t have any issues with the 7805. I only run relatively small digital circuits off of them though, so I can’t attest to their performance under heavy load.If I need a heavy load I use a bench supply or something designed special for the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215603",
"author": "BiOzZ",
"timestamp": "2010-11-20T22:26:38",
"content": "@shawn@M4CGYV3Rand you can pick up the 7805 7809 7812 and LM317 at radioshack for a dollar and not have to wait for shipping",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215618",
"author": "tanjent",
"timestamp": "2010-11-20T22:59:28",
"content": "If I’m not mistaken, the Zener regulator circuit pictured is totally wrong. To double-check I threw together a model in thehttp://www.falstad.com/circuit/simulator, and it doesn’t work.A correct circuit would place the Zener diode between the positive pin of the op-amp and ground, would pull that pin up to +V with a few kohm resistor, and the voltage divider on the output would feed back to the op-amp’s negative input.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215634",
"author": "Drake",
"timestamp": "2010-11-20T23:49:28",
"content": "What about a current limited power supply . . . like If I wanted to supply 2.4 Volts and limit it to 1.2 Amps",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215638",
"author": "Brian",
"timestamp": "2010-11-20T23:54:38",
"content": "Check out Murata’s new OKI series DC/DC modules 7805 footprint but you get a 4W 3.3 or 5v supply and it can take 7-36V in. Best part is they are $4http://www.mouser.com/ProductDetail/Murata-Power-Solutions/OKI-78SR-33-15-W36-C/?qs=sGAEpiMZZMslBFvnKnOhcowueqkl0vv3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215640",
"author": "Bill D. Williams",
"timestamp": "2010-11-21T00:01:22",
"content": "The author writes: “As an Industrial Design Student, I was obligated to make a decent Casing and Interface for my project”Ummmm, so you went to walmart? I hope they don’t pass you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215655",
"author": "anthonyn",
"timestamp": "2010-11-21T00:35:33",
"content": "article ends a bit abruptly.ive only just become aware of switching regulators, bucks/boost, etc.ive never looked inside a PC powersupply. Fear of high voltages and big caps.having a hard time stomaching the jump in price.ive been told/concluded its only worht the expense if the device is to run from batteries.ive been looking to power AVR, controlling 12v or 230v devices.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215665",
"author": "Andrew Pollack",
"timestamp": "2010-11-21T01:13:01",
"content": "Thanks for this. I’m enjoying the beginner concept series. I’m self taught, and there are big gaps in what I know how to do.A little skill is all it takes to do something really useful. I’m not a total noob with electronics, in fact I STILL get a lot of positive feedback from a hack I submitted here in 2005 (http://is.gd/hvgJS) for a super sized ipod remote for the blind.Still, some of these beginner topics are are things I already know, some are totally new, some just fill in the blanks. In this case, I knew about voltage regulators but not about how inefficient they really are. I did know they burn off excess energy as heat and of course I know that means they’re not as efficient as they could be, but I didn’t know the scale. I also didn’t really have as good an understanding of switched vs. linear voltage regulating s I do now.Reading these fills in some blanks, and as I get around to another project, it’s likely to be just a bit better than the last one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215668",
"author": "charliefreck",
"timestamp": "2010-11-21T01:15:46",
"content": "a rechargeable car jump-starter can also make a great power supply. clean 12v and plenty of amps. easy to add on a couple dc/dc regulators. and portable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215672",
"author": "jethomson",
"timestamp": "2010-11-21T01:27:31",
"content": "I much prefer using unregulated AC/DC wall warts which use a transformer. They are less noisey and because it’s unregulated you can get a wide range of voltages out of it. The “universal” adaptors are even nicer because it reduces the clutter of multiple adapters and allows you alter the turns ratio so that your regulator doesn’t throw away as much power if you don’t need it.Nuts and Volts has a good article on simple power supply design.http://nutsvolts.texterity.com/nutsvolts/200712/?folio=72#pg72It’s not a smart idea to take the PSU out of it’s metal case. If a wire comes loose and touches the case it will no longer cause the circuit breaker to trip like a grounded metal case would. Switched mode power supplies are already noisey; taking it out of the case ruins the EMC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215685",
"author": "Lars",
"timestamp": "2010-11-21T02:02:11",
"content": "HaD, I love this!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215719",
"author": "Jürgen",
"timestamp": "2010-11-21T04:51:41",
"content": "@tanjent:Circuit with zener does work.Presume, the OP does regulate, then the voltage at each input pin is the same. Let the zener have 2,7 V.Then, the voltage accross R2 is 2,7 Volts, too.Because the OP draws virtually no current, the current through R2 is the same than that through R3, thus R3 has a voltage drop of 1 Volt. The output voltage is 2,7V + 1V = 3,7V then which is OK.So the only question is, does the OP regulate, maintaining the zero volts input differential.It does.Assume the output voltage rises, than the voltage on the inverting input rises more than that on the noninverting input (no divider), which means a negative differential, which in turn means the OP reacts with a decrease in output voltage, effectively regulating the initial voltage rise.If the zener has a slightly lower voltage than 2,7 Volts, then the output voltage is closer to 3,3 Volts, which is the case if the zener is driven below its rated current.HTH",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216003",
"author": "raako",
"timestamp": "2010-11-21T16:21:06",
"content": "wheres my switched mode schematic yo?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216026",
"author": "Miroslav",
"timestamp": "2010-11-21T17:31:58",
"content": "@JürgenYour explanation is OK, but not very generic :) Adding some simple math, we can get more “universal” idea.Let’s call Zener’s voltage Uz, voltage on the inverted input (the “-” input) U1, on non inverted (the “+”) U2, and current through R3 we’ll call I3. Output is Uo.The basic equations say that potential between two inputs (between “+” and “-“) should always be the same (if the OpAmp is regulating.So U1 = U2Also, input currents into the OpAmp are negligible (safe to say I1=0 and I2=0).Some other equtions that will help us are:U1 = Uo – UzU2 = Uo * R2/(R3+R2) (simple voltage divider)from U1 = U2 we see thatUo-Uz = Uo*R2/(R3+R2)And from that it’s just a small step toUo = Uz * (R2+R3)/R3You were right that if Uz=2.7V =>Uo=2.7*(10+27)/27 = 3.7V, but that’s not what the author wanted (3.3V), so, for given velues of R2 and R3, it seams that Uz is not 2.7V but rather 2.4V.What above equation gives us is an easy way to design Uz and R2/R3 combination to get a variable output voltage.Replacing R2 and R3 with a potentiometer and resistor(s) that limit “extreme” values when pot is turned all the way up or down, one can modify this simple circuit so it generates any voltage beetwen a bit over Zener’s voltage to up to (almost) input voltage.The problem with this circuit in “variable” configuration is that approach with Zener connected to the output limits the minimum values of the Uo (Uo has to be over Uz and some), but also introduces a variable current through the Zener (Iz = (Uo-Uz)/R1), and that might be a problem in some cases.I’d rather have Zenner between U+ and ground, Zeners resistor to Ui, and divider R2/R3 from Uo back to U-, and that’s what I suppose [tanjent] was looking at. This configuration keeps non inverted input on a referential voltage (potential) at all times, and then returns farction of the output voltage to the inverted input (negative feed back to the circuit).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216066",
"author": "gyro_john",
"timestamp": "2010-11-21T19:04:06",
"content": "@Miroslav:Thanks! That was educational. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216072",
"author": "gyro_john",
"timestamp": "2010-11-21T19:31:57",
"content": "@Miroslav:Oops, found a bug. I plugged the values into your equation and got 8.88V instead of 3.3V, so I re-did the math and saw that you made a little mistake in the voltage divider equation.Should be:U2 = Uo * R2/(R3+R2) (simple voltage divider)^^Then I re-do your math and get:Uo = Uz*(R2+R3)/R2and, plugging in the values, Uo = 3.288VFTFY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216076",
"author": "gyro_john",
"timestamp": "2010-11-21T19:35:31",
"content": "Aaaand, fixing my own mistakes, …U2 = Uo * R3/(R3+R2) (simple voltage divider)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216112",
"author": "tanjent",
"timestamp": "2010-11-21T21:42:28",
"content": "In order to get my model of the circuit working, I had to model a small (millivolt) positive offset voltage on the op amp’s output, restrict the op amp to an output voltage of (0,15) instead of (-15,15), and change the zener voltage to ~2.5v.Without that, the op amp has a second (broken) steady state at 0 volts output – 0 volts input, which is the “doesn’t work” that I was seeing earlier.IANAEE, but I suspect it’s a bad practice to design op-amp circuits that don’t force one of their inputs to some known (or input) voltage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216122",
"author": "Miroslav",
"timestamp": "2010-11-21T22:23:52",
"content": "@gyro_johnYou are right. In my clculations (the paper model), I put R2 as th eone between ground and U+, and R3 as the one between U+ and Uo, so your correctin is correct.@tanjentThe real world OpAps with single supply don’t go to Uo=0V, so it might be more correct to define your output as 0 < Uo < UiIn real world, with some of those 3 pin devices that use similar approach, R1 is actually a current source (generator) that forces defined current through the Zener, and that why takes care of that \"0 state\" and also makes problem that I have mentioned (variable current through Zener) disappear, for any Uo you end up having.Zener works the best (most accurate, termal gradient, etc.) only when the current is in some defined range (usually 1-5mA for small zeners that most of us have in drawers.This schematic has one significant potential problem – it needs some capacitors on input and output side, they are required to prevent unvanted oscilations that usually come whenever there is a positiv feedback from output to input. Also a good large electrolit is never a bad thing to have – to iron out potential fluctuations from the input (from the switching supply or transformer/diode/electrolit). Those big ones also help with suden current rush when you connect the load.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216136",
"author": "Jake",
"timestamp": "2010-11-21T22:48:22",
"content": "Wow, this is just stupid. He couples something that is relatively efficient (switching power supply) with something incredibly inefficient (LM317). How much heat does this thing produce? Seriously, if you’re looking for something like this, just go to radio shack and buy a 1A transformer for all of 10 bucks. There is no point to putting a huge switcher behind that IC.Speaking of transformers, what is that big one doing in there next to the switcher? Is that just to power the fan? A transformer of that size should easily be able to put out 1.5A, which is the max current of the LM317. Lol, FAIL!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216148",
"author": "Don",
"timestamp": "2010-11-21T23:13:10",
"content": "Where is the schematic with the transformers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216173",
"author": "Miroslav",
"timestamp": "2010-11-22T00:36:29",
"content": "@JakeNever a good idea to call someone’s work (or someone) stupid as you can always find your statements and “facts” that justify someones stupidity questionable as well.A god example is my contribution to this thread, where my math model proved to be faulty by another reader (but he never called me stupid although he had all rights to do it) :)Just to list some of benfits of the above approach (without saying this is the best possible one, or the implementation can’t be improved here an there):1) Used PC PCU = free vs. RadiShack trafo + diode + electrolite = over 10$2) I bet that author was not overly concerned with efficiency of his solution3) Switching supply gives hi amp stable outputs (+/-5V, +/-12), while LM317 provides variable output4) To eliminate the fluctuations from the input voltage, you need much bigger electrolite if using trafo + diode then if you are taking DC from the switcher(for math inclined, variation of voltage (dU) on capacitor (C) for given discharge current (I) with period between recharges (t) can safely be presnted asdU = I*t/C that gives C = I*t/dUNow lets say that I=1.5A (limit with LM317), and we do not want Ui to have more then dU=50mV from the mains (trafo/diode) or from the switcher, given two values of “t”a) t from fully rectified main (f = 60Hz) ends up being t=1/120b) t from a decent switcher with switching frequency 50kHz (most are even faster) ist=1/50000gives needed capacitor asC(trafo) = 1.5[A]/(120*0.05[V])=250mF=250,000uFC(switcher)=1.5[A]/(50000*0.05[V])=0.6mF=600uFSome will complain (rigtfully) that such strict limitation for Ui’s fluctuation (50mV) is to demanding, but plug your numbers and you’ll always end up with 400 times smaller capacitor when using a switcher.Not to say that if you go with the Radio Shack trafo you’ll have to by that big electrolite, while if you recyle any swither, it comes with required capacitor in it.I’m sure you’ll find some flaws in my logic here, but I hope you’ve got my point – usefullness in the eyes of teh beholder, and not that many things are real stupid :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216289",
"author": "Jake",
"timestamp": "2010-11-22T04:37:41",
"content": "Just for the hell of it, I used a supply voltage of 10V after rectification and assumed the incoming ripple was 60Hz from an AC transformer. I came up with 1100uF for a desired 50mV maximum of voltage ripple at a load of 1.5A. I think your math is quite flawed. 50mV is not too strict of a limitation, but somewhere along the line you came up with 250mF which is wrong!Now, with the same equations I derived, assuming a switching frequency of 50KHz, the required capacitor for the same circuit would only be 1.33uF, but I don’t really think that’s the issue here. I think the issue is that the dude put a switcher in a case and slapped an LM317 on the end, when the whole thing could have been powered from the transformer which is also in the box (and WHY is it there? I still don’t get it, lol). The caps he has on the front end of the supplies are more than enough to take care of the voltage ripple from a transformer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216296",
"author": "Miroslav",
"timestamp": "2010-11-22T05:10:48",
"content": "@JakeI have no doubts “my” formula for rippleC = I*t/dU = I/(2f*dU) (for full bridge rectifier)is correct. Just to be sure, a quick question to my friend Google gave wiki link that confirms the samehttp://en.wikipedia.org/wiki/Ripple_(electrical)This is for the ripple imemdiatelly after the trafo/bridge, and if regulated output voltage is quite lower then one getting in minus designed ripple, ripple is NOT (that) critical as serial shunt (transistor) “eats” it away, but we were tolking the principle, not actual realization.How did you get 1100uF?It looks to me that he’s also using all other outputs from the switcher (like 5V/bigAmps), so if nothing else that justifies recicled switcher vs. trafo/bridge, hope you’ll agree with that.But asside this realy good technical exchange, my original point was about calling somone’s work stupid :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216302",
"author": "Jake",
"timestamp": "2010-11-22T05:28:00",
"content": "My math is probably flawed as well, but yeah, back to the original point – A great amount of the stuff posted to this site is not worth reading. IMO this post falls in to that category, and I therefore reserve the right to call it stupid!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216451",
"author": "IsotopeJ",
"timestamp": "2010-11-22T15:40:02",
"content": "I would be much more comfortable with a grounded metal case for something like this. I never use plastic for something that plugs into the wall. I don’t trust my own wiring enough.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216618",
"author": "Jake",
"timestamp": "2010-11-22T20:15:36",
"content": "There are a million and one better power supply plans on the internet. This one makes horrible use of space, and I’m guessing that it has a hell of a time staying upright when you’re making connections to it. This could easily have been installed in a recycled housing from an old stereo or something. Anything is better than a plastic drill case.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216624",
"author": "Miroslav",
"timestamp": "2010-11-22T20:32:46",
"content": "@Jake, AllHas anyone ever found a switching DC/DC that allows variable output that’s not limited to a very narrow output range.I’m not an expert, but it sounds close to imposible to get it done because of the impact Ui/Uo and max current have on required L.Would be so cool to have 0-30V / 3A without the need to deploy some elaborate designI’ve been playing with analog output stage that gets the input feed from multistaged switcher (switching supply that has different configurations for diferent voltage ranges), so different output range “triggers” different input range, so it keeps disipation on the serial shunt in check.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "299492",
"author": "jason",
"timestamp": "2011-01-09T02:34:43",
"content": "hi i have a engine that makes power. I have 2 wires 1 for possitive the other for negitive.i hook then to a light and it just pops the buld.so i need to put a gegulator between whitch wires the poss or neg??and then i bolt it to the body??",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.151254
|
||
https://hackaday.com/2010/11/19/avr-programming-04-writing-code-etc/
|
AVR Programming 04: Writing Code, Etc.
|
Mike Szczys
|
[
"Featured",
"how-to",
"Microcontrollers"
] |
[
"ATmega168",
"AVR",
"avr programming",
"bicycle",
"bike",
"light"
] |
Welcome back to this fourth and final installment of the series. The first three parts should have been enough to get you off the ground, but a few more learning examples wouldn’t hurt. It’s also a good time to discuss some of the other things these little chips can do. Join me after the break to:
Expand the sample code, adding features to our simple program while I challenge you to write the code yourself.
Discuss AVR fuse bits, how to use them, and what to watch out for
Touch on some of the peripherals you’ll come across in these chips
As a grand flourish to the series, I’ve used the example hardware from this final part to build a bicycle tail light. Hopefully this will inspire you to create something much more clever.
Series roadmap:
AVR Programming 01: Introduction
AVR Programming 02: The Hardware
AVR Programming 03: Reading and compiling code
AVR Programming 04: Writing code
Adding to the Example Hardware
The example code that I’ve been working with on the last two parts of this tutorial is a bit boring. It makes one LED blink on and off at a rate of about 1 Hz. That LED was connected to the pin for PD0, so let’s start out by adding an LED and resistor to the rest of the PORT D pins for a total of 8 LEDs. We should also talk about inputs, so let’s add a switch on PC0. Here’s a schematic showing our changes:
I moved the original LED over to some open space on the right side of the breadboard. I’m connecting the cathode to the ground rail on the bottom, jumping the trench with a resistor, and connecting a jumper from that resistor to the Port D pins on the microcontroller. I organized the LEDs in ascending order from right to left making it easy to address them when writing code:
If you know your
resistor color codes
you’ll notice that the Brown-Green-Red resistors I’m using are 1.5 kOhms, strangling the current to a tiny trickle for LEDs. Well, I’m using super bright LEDs, and these resistors were the first that I pulled out. They work just fine for prototyping but should be replaced with a correctly calculated value on a finished product.
Next I hooked up a button. Digital inputs on microcontrollers need to have a value of 0V or VCC (input voltage which is 5V in our case). If they don’t have a clear value they are said to be “floating” which can lead to false button readings and other unhappy occurences. We need to set up hardware that will force a value of 0V or 5V at all times. This turns out to be quite simple. By connect the switch from the pin to ground and a resistor from the pin to VCC (called a pull-up resistor) there will always be a very small 5V current trickling into the pin, except when an unrestricted path to ground is created by pressing the button. We don’t even need our own resistor as there’s one inside the microcontroller that we’ll take advantage of. Here’s a schematic showing what this connection, along with the internal pull-up resistor, looks like:
That description is a mouthful but all we’re really doing is placing a button between PC0 and Ground. Pin 23 is PC0 on the ATmega168 and the pin right next to that (pin 22) is GND. I’ve connected a switch accordingly. In the following image please note that Pin 22 is connected with a jumper wire to the ground rail above it, but is obscured by the black wire from the push button:
And finally, I want to make connections to the chip for In-System Programming. I like to do this using
a patch board that I created
. This lets me use a 10-pin IDC cable for easy connection to my programmer:
That’s it. I plan to use this hardware with several different firmware examples so double-check your wiring and then start writing code.
Writing Code
Time to practice writing your own code. I have come up with
four firmware examples
ranging in difficulty from “Hello World” to “Damn That’s Slick”. I’ll discuss each of them briefly but along the way you should try to write your own code, using my examples as… examples. The best way to learn to code is to write a small portion of code, let the compiler yell at you for messing up, and then figure out how to fix it.
Blinking all 8 (8led_1hz)
[youtube=http://www.youtube.com/watch?v=ssBfFUoLjFI&w=470]
First thing’s first, can
you
make the
example code from Part 2
blink all 8 LEDs instead of just one?
There’s really only two things that you need to change from the original to make this happen. First, when setting up the input/output, make all of the pins on Port D outputs, then turn them all on. Second, when toggling the bits in the Interrupt Service Routine use a bitmask that affects all eight bits.
The source package for this part
of the series includes this alteration. Grab a copy of it and look at the 8led_1hz code. In it you’ll find these changes:
DDRD |= 0xFF; //Set PortD pins as an outputs
PORTD |= 0xFF; //Set PortD pins high to turn on LEDs
PORTD ^= 0xFF; //Use xor to toggle the LEDs
As you can see, both portions of code use 0xFF as a bit mask. This is a byte containing all ones, which will manipulate every pin on the registers to which we apply it. Before I had shifted a bit using this:
'1<<0'
It resulted in a bit mask of 0x01, protected the upper seven bits from being changed during register manipulation.
Make the LEDs do something interesting (m168_led_effects)
[youtube=http://www.youtube.com/watch?v=d-wyP7iYaWg&w=470]
Now I’m going to take a big step forward in C code difficulty. But I challenge you to develop three different types of LED effects by yourself:
A binary counter which counts up at 1 bit per second
A flasher that alternates lighting every other LED
Larson scanner
(a simple one, doesn’t need to use PWM)
You’ll find my example code in the m168_led_effects directory. Here’s some of the new things I’m using in my code:
Definitions:
I’m using definitions for common settings and for I/O pins, ports, and direction registers. These are constants that the compiler will replace with appropriate values but they make your job much easier. If you get most of the way into a project and realize you need to change some of the hardware this will make it simple to do. Need to change from Port D to Port C? No problem, change the #define and the rest of the code will still work
Delay:
AVR libc has a nice delay utility called delay.h. You can see that I’ve included it at the top of the source file and also written a function called delay_ms(). This is a moderately accurate way to mark the passage of time. The drawback to using this is that you are literally wasting time when the processor could be doing other things. Still, it’s simple and if you’re new to microcontrollers you’ll probably find yourself using this frequently at first.
Also notable in this version of the code is my use of functions to take the complexity out of MAIN. I like to do this when I can to make program flow more readable. If you use descriptive function names it will be easy for others to see how the firmware works just by looking at main. This is also why I comment my code quite a lot. Not just for others, but so I can read it quickly if I come back to it later and don’t remember what I originally wrote the program to do.
Before we move on here’s a quick synopsis of how I solved the three goals:
When displaying a binary counter at 1Hz I simply start Timer 2 the same way I did for the blinking LED in Part 2 of the tutorial. Each time it fires I don’t toggle the pins, but set the entire port to an 8-bit variable value while incrementing it at the same time. The ++binary_counter increments that value just before it sets Port D. It is crucial that this value be a global variable using the keyword ‘volatile’ because it is changed by both the ISR and in the main loop. If you don’t make it volatile the compiler might optimize the code in a way that disturbs or disrupts the intended functionality.
Creating an alternating flasher is much the same as toggling a single LED. I set up for the effect by instantiating a variable with every-other bit as 1. When using an exclusive OR operator (XOR) on this value, all of the bits will flip. I could have set up an interrupt with a shorter delay than the 1 Hz interrupt to take care of this but for learning purposes I used a delay instead.
The Larson scanner is a classic bit of blinky goodness. The core function is to illuminate one LED and sweep it back and forth. To do this I just created a loop to shift the bits, waiting after each change. Once the LED on the end is lit the program leaves the loop and enters another one to shift bits the other way. The same could have been accomplished with a variable that keeps track of which direction the LED is moving, testing during each iteration.
When you’ve read and understood how this code works it is time to get the button up and running.
Make the button do something (m168_led_button)
[youtube=http://www.youtube.com/watch?v=N7AJeXsk_KQ&w=470]
We brought a button to the party, let’s alter our LED effects so that the button is used to change between the three possibilities. If you’ve never written code for a button input before there’s little chance you’ll be able to pull this off yourself, so open up the code in the m168_led_button folder and lets walk through it.
Debounce:
Buttons often register more than one press if not handled correctly, a process called debouncing. There is a hardware fix for this, but you can learn about that on your own time. Recently, I gathered a
post full of different debounce code
, but
the one I almost always use
is based on code by [Peter Dannegger]. It relies on several parts:
Code to start a timer with an overflow interrupt
An ISR to service the timer overflow, resetting the timer for 10ms interrupts and polling the button pin.
A bit mask and pin definitions that identify how the buttons are hooked up
A function used to check if a button press has been registered
Code to check that function and act when a button has been pressed.
The magic is in the ISR debounce code. It flips bits in a binary counter to register four successive button press readings totalling 40ms. That signals a legitimate button press and when the get_key_press function is called it will return a populated key mask. To help understand how this debounce code works, I have included a code example called button_debounce. This has been slimmed down to include only the code used to debounce. Pressing the button will toggle the LEDs.
[youtube=http://www.youtube.com/watch?v=PjI0GsT0bVI&w=470]
During the hardware setup I talked about using the internal pull-up resistors. I have to remember to set those up at the beginning of the program or the input pin will be floating. The datasheet talks about this on page 71. When a pin is set to input using the Data Direction Register, writing a high value to the Port bit for that pin will enable the pull-up resistor. From there the current status of the pin can be grabbed from the appropriate Pin register. Notice the ISR used for debouncing reads KEY_PIN, which is defined as the PINC register at the top of the source code. You don’t have to read the Pin register because the ISR is doing it for you.
My implementation of button debouncing in the m168_led_button code is just fine, but my use of the button is a hack. I should have used a state machine and gotten rid of the delay functions in the code. For simplicity I just littered calls to get_key_press throughout the code whenever I was trapping the program in a loop. I used the detection of a key press to return to main from the function the program is stuck in.
Pick this apart, writing simple code that you understand and slowly you will build the knowledge base necessary to understand this code as a whole.
Creating something useful (m168_bike_light)
[youtube=http://www.youtube.com/watch?v=FxZPDY5Kf-Y&w=470]
I wanted to finish the code writing section with a useful application for our test hardware. Behold, a bicycle tail light. It has a button to scroll through several different red light patterns, and it uses sleep mode to shut off the LEDs and conserve battery power.
I’ve changed the program flow to use a state machine. This is a bit of a juggling act. I use an interrupt to set a flag called ‘timer’. The main loop constantly polls that flag, as well as the button, and acts accordingly. Whenever that flag is set the next step of the LED effect is performed.
Sleep mode is also used in this example. One thing to note: when in sleep mode the chip uses almost no current, conserving batteries. But the linear power regulator still burns away like crazy. For this to be useful the code should be ported to a chip that operates at low voltages. For instance, you could use a tiny13 and two AA batteries without a regulator. Adjustments would need to be made for less pins and corrected LED resistor values, but these are not difficult changes to make. Have a look at the code in the m168_bike_light folder. The comments and your hard-earned AVR knowledge will help you understand how this works. Good luck!
Now I’ll move on to the discuss one of the most important parts of theses microcontrollers:
AVR Fuse Bits
The fuse bits are a set of registers that control some core features of the AVR line of chips. You can think of them as another type of memory, programmed separately from the code that you want to execute.
Read the datasheet
Fuse bits for the ATmega168 are covered starting on page 285 of
the datasheet
. You should make yourself thoroughly familiar with this information.
Incorrectly programming these registers could render your chip useless
unless
you have a programmer capable of High Voltage Programming (HVP).
There are three fuse bit registers on our chip, the Extended fuse byte, the High fuse byte and the Low fuse byte. All of them use inverse logic, meaning that a ‘1’ means the corresponding feature is NOT selected. I start every project with these registers set to the factory default, information I keep in a text file with the factory fuse defaults for all the chips I work with. At the beginning of every project I try to talk to the chip using the ‘-v’ option of AVRdude to make sure the programmer and chip are both working correctly to save time on later debugging. Here are the ATmega168 defaults:
efuse: 0b11111111 (0xFF)
hfuse: 0b11011111 (0xDF)
lfuse: 0b01100010 (0x62)
I’ll touch on most of these features in the next section. But of particular concern are the bits that select the clock source, and the reset disable bit. If you disable the reset pin, by accident or in order to use it as an I/O pin, you will need to use HVP or debugWire to use ISP programming again. If the clock pins are changed you will need the appropriate external clock signal, or HVP for the same reason.
You can program the fuse bits using AVRdude. In fact,
there’s an example in the documentation
. This command will reset the fuses to the factory settings:
avrdude -c dragon_isp -P usb -p m168 -U efuse:w:0xff:m -U hfuse:w:0xdf:m -U lfuse:w:0x62:m
AVR Peripherals (A Whirlwind Tour)
Take a whirlwind tour of the features available to you on this chip. This is gonna be quick, but you already have the core skills you need. Just read the datasheet and using the Internet to connect the rest of the dots.
EEPROM memory
Most (if not all) of the AVR chips come with Electronically Erasable Programmable Read Only Memory. This is persistent memory that stores data between resets and when there is no power to the chip. This is where data loggers store information and often contains things like text strings, font data, etc. AVR-GCC will generate an .EEP file at compile time with any EEPROM data that you use in your programs. This needs to be programmed to the chip separately from flash data.
Timers (Regular and Watchdog)
Timers are where it’s at in terms of functionality. They go far beyond simply measuring time, and can be used to wake the chip up from sleep mode, to generate pulse width modulation frequencies, and much more. Some chips have asyncronous timers, like Timer/Counter 2 on the ATmega168, that can use an external clock signal separate from the other timers.
Also not to be missed is the Watchdog timer. These timers can save money, and even lives. They are a hardware timer enabled through the fuse bits that will reset the microcontroller if not handled in software. Why would you want to do that? Because nobody writes perfect code. When using a Watchdog timer you frequently reset its counter during successful code execution. That way if your code ever hangs or gets caught in a loop the Watchdog timer will automatically reset the device, getting you out of a software-caused bind. See
what [Jack Ganssle] has to say
about them.
Real time counter
I mentioned above that Timer/Counter 2 can be run asynchronously from the rest of the timer/counters. Why is that valuable? One of the uses is as a Real Time Counter (RTC). This works in conjunction with a clock crystal to keep track of the time and date.
Hardware PWM
Continuing with the theme of timer/counter based featured, these chips have hardware-based pulse width modulation. PWM generates a signal between 0V and VCC by turning a pin output on and off frequently. The frequency used, and the duty cycle (ratio of high versus low over one period) are set in the registers and you don’t have to think about it again until you want to change them. This is useful for a slew of things, like dimming an LED, driving a servo motor, or generating sound on a piezo.
ADC
If you want to measure an analog value you need an Analog-to-Digital Converter. Most AVR chips have several of these with varying degrees of precision. This enables you to do things like measure light levels using a photoresistor and reading the value of a potentiometer (using it like a settings knob).
USART
The ATmega168 has a Universal Synchronous and Asynchronous serial Receiver and Transmitter which allows it to communicate in many different ways. This includes serial communications like USB (by taking advantage of
the V-USB stack
), as well as chip-to-chip communication standards like SPI, I2C, and TWI.
SPI
The AVR family often incorporates Serial Peripheral Interface bus communications protocols into its hardware. The USART on the ATmega168 offers master SPI functionality, used to control other chips that also use the protocol via three connections; two for data one for clock.
I2C/TWI
The USART also offers hardware I2C and Two Wire Interface features. Like SPI these are common chip-to-chip protocols but they use just two wires; one for data and the other for a clock signal.
Analog comparator
The analog comparator uses two input pins to compare analog signals. Based on their relation, the chip can be set to fire interrupts if one changes value compared to the other. The two inputs can be mapped to any of the ADC pins, but only two values can be compared at one time. I’ve never used this feature and I’m basing this description purely on what I’ve read in the datasheet. Sorry!
Lock bits
Any code you write to these chips can be read back and stored (albeit what comes back out is machine code, the C code we’ve been writing can never be reproduced perfectly from what you get off the chip). That can then be used to program other identical chips. But there is a feature called lock bits that can protect that code. Once set, the chip cannot be read, and depending on which bits are set it may not be able to be reprogrammed. That is, until the chip has been erased, which resets these lock bits.
JTAG, debugWire, and High Voltage Programming
In this tutorial we’ve been using In System Programming, but there are a few other ways to program AVR chips. JTAG is a standard hardware debugging (and programming) interface that some chips have, but the ATmega168 does not. Many of these chips can use the debugWire protocol to program and debug with just one wire communicating on the reset pin. Both JTAG and debugWire protocols are configured using the fuse bits.
High Voltage Programming is used to rescue chips that cannot be reached using other programming methods. There are two kinds, High Voltage Parallel Programming, like the ATmega168 uses, or High Voltage Serial Programming which chips with a low-pin count use. If you disable the Reset pin or enable debugWire, or set the clock source incorrectly in the fuse settings, HVPP or HVSP should be able to reset the fuses and rescue the “bricked” chip.
Power and Sleep
Microcontrollers operate so quickly there is often just wasted time as they scroll the infinite loop waiting for an interrupt to happen. If you are operating under battery power this just wastes juice. By using the power saving and sleep modes batteries can last longer. This is accomplished by turning off power hungry peripherals like the ADC, and shutting down the processor when not needed by putting it to sleep. They’re a bit tricky to understand, but often worth your while
Conclusion
That’s it really. I’ve had a great time writing about this. Fiddling with microcontrollers is my favorite hobby and I hope it has become yours as well. These are really very simple concepts that grow in complexity as you pile them atop each other. Just compare the original Part 2 source code with the bicycle tail light code. But that’s the fun of it. This is the inventor’s equivalent of a choose your own adventure novel. So come up with a challenge and see where it takes you!
Follow Me
@szczys
Resources
Part 4 Firmware package:
Github repository
Atmel AVR
ATmega168 Datasheet
(PDF)
AVR Libc manual
http://www.ganssle.com/watchdogs.htm
| 24
| 24
|
[
{
"comment_id": "215134",
"author": "Gdogg",
"timestamp": "2010-11-19T23:15:37",
"content": "Great tutorial.I sincerely hope you continue this series to something more advanced like PWM, Timers, hardware interrupts, etc etc.That or make these same tutorials for pic programming",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215139",
"author": "Frank",
"timestamp": "2010-11-19T23:28:12",
"content": "For calculating your required fuse-bits, try out this calculatorhttp://frank.circleofcurrent.com/fusecalc/fusecalc.php",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215140",
"author": "Simon",
"timestamp": "2010-11-19T23:29:45",
"content": "Wooo. Great stuff. Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215181",
"author": "tehbasti",
"timestamp": "2010-11-20T01:32:24",
"content": "love it, ty!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215190",
"author": "babble",
"timestamp": "2010-11-20T01:53:06",
"content": "i’m strongly pleased by these tutorial series",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215289",
"author": "Sean",
"timestamp": "2010-11-20T06:27:08",
"content": "My least favorite fuse bit is the CK/8 bit which is enabled by default on at least some AVRs.I carefully chose my external crystal for the USART… and after some frustration discovered my clock was running at 1/8 the expected speed.Also, high voltage programming is great, I use it whenever the chip supports it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215291",
"author": "bobdole",
"timestamp": "2010-11-20T06:31:16",
"content": "Awesome, thanks!I’ve been looking for something like this. I’ve never made the plunge into uc land, but I’ve recently salvaged a few AVR’s from various devices and I have a programmer, and a teensy tiny bit of assembly experience. This article has great timing for me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215473",
"author": "Janek",
"timestamp": "2010-11-20T17:05:46",
"content": "Do You guys know a tutorial where I could read basics like how to compute proper resistance in serie with LED, like in example above?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215496",
"author": "Akhil",
"timestamp": "2010-11-20T18:13:26",
"content": "Yeah Janek i am too looking for that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215498",
"author": "M4CGYV3R",
"timestamp": "2010-11-20T18:13:43",
"content": "This is great. I love it.In my opinion, this should be AVR Tutorial #1 instead of #4. The basics about systems, interrupts, and peripherals along with how the chip’s features are organized is crucial to starting out.It could also be titled “How to save $35 by not using an Arduino”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215730",
"author": "Quan-Time",
"timestamp": "2010-11-21T05:29:18",
"content": "Wow.. bitter much ? You can program normal AVR’s with “arduino” code if you flash the chip properly.Theres other varieties to play with too, im currently a big fan of Teensy++ 2.0 and its “cheaper” than arduino.. OHHHH.. fancy that.This is NOT ment to be an aggressive post towards M4CGYV3R, sorry if it sounds that way.PS: this series is REALLY good for the fundementals for people to learn.I agree with the Interrupts being the next logical step. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215781",
"author": "Brian",
"timestamp": "2010-11-21T09:25:48",
"content": "I definitely second M4CGYV3R’s thought about more of this series, but they should be #5 on, as I have gotten a LOT of useful info on the AVR from this series.I would also like to see a PIC tutorial IN ADDITION TO, and not simply instead of, a continuation of this series.This has been a welcome addition to the regular HaD articles. I really hope to see more of these types of articles. Great work, gentlemen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215969",
"author": "absolutezero",
"timestamp": "2010-11-21T14:40:31",
"content": "Thanks for this series. I just recently learned this material in my shift from the arduino platform to straight up avr programming.Other great sources for help are #avr and ##electronics on irc.freenode.net",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216059",
"author": "JONAS",
"timestamp": "2010-11-21T18:40:03",
"content": "For power and sleep, check out this video they just put out. I thought it was very good, to the point and a minimal of marketing bs.http://www.youtube.com/watch?v=ChR5EqeCzZw",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216778",
"author": "Stephen Zuercher",
"timestamp": "2010-11-23T01:38:24",
"content": "I’m trying to understand when we use the different ISR’s. We used TIMER0_OVF_vect because we are looking for an overflow condition, but how do we know to use PCINT1_vect or TIMER1_COMPA_vect for our button?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217171",
"author": "Frank",
"timestamp": "2010-11-23T16:29:19",
"content": "@Stephen: I think you’d want PCINT1_vect.That is the Pin Change Interrupt vector, and when a button is pressed it causes a pin to change levels.The TIMER1_COMPA_vect is the Timer 1 Compare vector A (it has two compares, A and B, so you can compare to more values). It usually triggers when the value of timer one matches/reaches the avlue of Timer1’s Compare A register. It’s mostly used for periodic triggering.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217207",
"author": "Stephen Zuercher",
"timestamp": "2010-11-23T17:55:50",
"content": "@Frank I guess I don’t understand why we are using TIMER1_COMPA in the led_button file for our button press then. Can you clarify?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217318",
"author": "Christian",
"timestamp": "2010-11-23T21:29:02",
"content": "I´m looking for tutorials on setting up C code from scratch. I mean like the libraries you need to include and which makefiles you need to have when starting with different UC´s.I´m using Avr studio and have a fairly knowledge of java and c, but know nothing of c regarding programming for UC´s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "282907",
"author": "Paul",
"timestamp": "2010-12-12T11:12:24",
"content": "Excellent tutorials.+1 for Atmel’s AVR microcontrollers. All the development tools are free !!!. Yay.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "710187",
"author": "Treehouse Projects",
"timestamp": "2012-07-22T22:20:38",
"content": "Phenomenal tutorial! I’m new to AVR microcontrollers, and spent a few days going through your whole series. Thanks for a great series!There are some things I am still confused about, but I think this post is too old to get a reply now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1248533",
"author": "manoj",
"timestamp": "2014-03-09T10:50:10",
"content": "ok",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2132002",
"author": "marcin",
"timestamp": "2014-11-13T15:45:24",
"content": "hehe any more of tutorials :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3546323",
"author": "Chuckk Hubbard",
"timestamp": "2017-04-28T14:46:03",
"content": "Thanks, but imo that last “whirlwind” part was what I was actually looking for, i.e., programming avr chips, and I would have liked to actually learn those things. I will continue googling…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3669912",
"author": "Mike",
"timestamp": "2017-06-12T20:48:50",
"content": "Is it possible that a .hex file when flashed to a chip, such as an Atmega2560, has lock bits set such that when AVRDUDE attempts to verify the flash it returns a verification error?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.37386
|
||
https://hackaday.com/2010/11/19/communicating-with-an-led-matrix/
|
Communicating With An LED Matrix
|
Mike Szczys
|
[
"LED Hacks"
] |
[
"conways game of life",
"led",
"matrix",
"python",
"serial",
"sure electronics",
"Teensy",
"terminal"
] |
Most of the LED matrix posts we run delve into the hardware design. This time around [J Bremnant] used prefab modules and
focused on writing code to address the display
. The hardware combines two 24×16 LED boards from Sure Electronics with a Teensy 2.0 to drive the display and provide a USB connection. The firmware comes in just under 8k, leaving graphic manipulation up to a PC.
[J Bremnant’s] Python script offers a lot of flexibility when working with the display. There are three modes selectable through a terminal interface. One just tests the display and then drops into
Conway’s Game of Life
. The second mode lets you send commands via serial interface so it can be used as a message ticker. The final feature is frame addressing that allows graphics to be dropped into the display. See each of these featured in the video after the break.
[youtube=http://www.youtube.com/watch?v=Yuv5SUVp5ik]
| 9
| 9
|
[
{
"comment_id": "215103",
"author": "acidice332",
"timestamp": "2010-11-19T21:33:21",
"content": "Pretty neat",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215107",
"author": "BiOzZ",
"timestamp": "2010-11-19T21:51:04",
"content": "you think these are bright enough for a low light LED projector?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215115",
"author": "Erik Johnson",
"timestamp": "2010-11-19T22:34:54",
"content": "@BiOzZ,No, these modules are usually in the 100s of mCD light output",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215155",
"author": "NatureTM",
"timestamp": "2010-11-20T00:14:10",
"content": "I have a few of these Sure displays, and they’re great for the price. I made a stock ticker + weather report + user-defined message display with a web interface.I googled a bit and found that signage like this can be pretty expensive. I was going to go around to some local business and see if I could sell some and make some easy money. As Erik mentioned, however, they’re not extremely bright, and you probably wouldn’t even be able to read it through a store window on a sunny day. Great for indoor use, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215200",
"author": "Frollard",
"timestamp": "2010-11-20T02:41:02",
"content": "I wanted to pick some of these up – looks awesome. 200fps at full random graphical updates is awesome in that you could easily do 25fps @ 8 levels of brightness faked software pwm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215263",
"author": "NatureTM",
"timestamp": "2010-11-20T04:33:05",
"content": "@FrollardThey actually have 16 levels of hardware-implemented pwm which can be controlled with a serial command.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215267",
"author": "jbremnant",
"timestamp": "2010-11-20T04:49:13",
"content": "@NatureTM/FrollardRight, these boards have brightness control via pwm generated from ht1632 driver chips. Since it’s done from that chip, I probably won’t lose fps. It’s just a matter of sending the board right serial command, which is already implemented in the C code (I just haven’t used it yet).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215421",
"author": "Frollard",
"timestamp": "2010-11-20T14:09:58",
"content": "That’s awesome news…now I MUST get some!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216260",
"author": "Tom",
"timestamp": "2010-11-22T03:31:31",
"content": "Just be aware that the PWM on these sure-electronic boards controls the brightness of the ENTIRE board and NOT the individual LEDs.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.307076
|
||
https://hackaday.com/2010/11/19/arduino-java-joystick/
|
Arduino + Java + Joystick
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"adc",
"analog",
"java",
"Joystick",
"sensor"
] |
Interfacing your own hardware with a Java app couldn’t be easier than
this example
. [Pn] created this proof-of-concept using an Arduino, an analog joystick from a gaming controller, and a few lines of Java code. The Arduino reads an ADC value from the joystick’s x-axis and transmits it over the serial connection ten times a second. The Java program triggers on every serial event, parsing the data based on the @ symbol that the Arduino sends as a start and end condition.
We like this kind of example because there’s nothing extra involved. It lets you take the concept and run with it in any project imaginable. Be it
a more complicated Joystick
, or simple sensors that you’d like to interface with.
| 14
| 13
|
[
{
"comment_id": "215097",
"author": "nes",
"timestamp": "2010-11-19T21:04:15",
"content": "Nicely written project. I beg to differ regarding the easiest way to do this. If you don’t already have a ready made Arduino then Byron is way simpler as it uses the OS’s built in HID driver for USB and will happily enumerate itself as a joystick or keyboard or whatever.http://1010.co.uk/org/byron.htmlI’ve used this a couple of times. It’s great and just works for up to 6 analog channels.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215125",
"author": "Gdogg",
"timestamp": "2010-11-19T22:52:37",
"content": "That byron thing looks pretty cool. Like a cheaper Teensy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215130",
"author": "Gdogg",
"timestamp": "2010-11-19T23:04:33",
"content": "That said, this arduino thing is a total hack. You don’t really learn anything (who didn’t know you could read an analog input and communicated serially, who didn’t know you could interpret a serial stream on a computer). What would be COOL is him hooking up the joystick, then implementing an HID interface, so the data that is passed (over usb, not usb to serial) is meaningful to more than just one application built to read that specified @@ ‘protocol’ and uses a standard, well defined interface. Through that you could build your own game pads, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215141",
"author": "Todd Grigsby",
"timestamp": "2010-11-19T23:30:41",
"content": "This gave me a geek chubby. This is going to be my next project…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215151",
"author": "nes",
"timestamp": "2010-11-20T00:02:59",
"content": "@Gdogg: I rats’ nested the first one I did from old junk so it cost two parts of nothing:http://postimage.org/image/2cfmum7vo/The teensy does look a bit better supported though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215163",
"author": "Tomasito",
"timestamp": "2010-11-20T00:26:50",
"content": "I’ve done something similar but more funcional.An arduino with a 2 axis joystick + 1 button, send the data via serial to the pc, and in the pc I use PPJoyCOM, so I can use it like a real joystick in any game.If anyone want the arduino code I send it, it’s very simple btw, once you figure out what PPJoyCOM expects to read from the serial port..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215199",
"author": "Gdogg",
"timestamp": "2010-11-20T02:34:13",
"content": "@nes omg haha that looks horrible, but I guess you got it working.I’m thinking of getting a teensy to mod an xbox controller, but I need the motivation to START the project. sigh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215277",
"author": "Moggie100",
"timestamp": "2010-11-20T05:38:42",
"content": "With the Uno series you could build a proper HID joystick using this method.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215408",
"author": "epokh",
"timestamp": "2010-11-20T13:35:25",
"content": "Well done Pn, but the way to go is defo the HID crafting method. It will be also cool to build a wireless HID host receiver. So that you can build a wireless network with a usb hid node host.Then you can attach everything you want.I have some jeenodes ready to go.I’m gonna do that, it’s awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215507",
"author": "Pn",
"timestamp": "2010-11-20T19:08:30",
"content": "Epokh I’m waiting for your new article, so.However I know the connect a potetiometer to arduino is not cool, infact the interesting thing, for me, is the java code.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215609",
"author": "epokh",
"timestamp": "2010-11-20T22:43:17",
"content": "Yes I know, so have a look at this:http://www.youtube.com/watch?v=U6Ih_74hGy8it’s using processing to show the joystick position.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5567426",
"author": "sujesh",
"timestamp": "2018-12-05T06:07:05",
"content": "may i get the java code..",
"parent_id": "215609",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "215754",
"author": "MS3FGX",
"timestamp": "2010-11-21T07:36:07",
"content": "The Byron board looks pretty cool, I’ll have to keep that one in mind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215755",
"author": "Whatnot",
"timestamp": "2010-11-21T07:39:15",
"content": "Erm, right, take apart a $10 joypad, connect parts to a $20 arduino and have a dinky joypad.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.26058
|
||
https://hackaday.com/2010/11/19/key-chain-lcd-as-screen-for-a-dockstar/
|
Key Chain LCD As Screen For A Dockstar
|
Mike Szczys
|
[
"Video Hacks"
] |
[
"dockstar",
"key chain",
"lcd",
"lcd4linux"
] |
[Peter Gunn]
added an LCD screen to his Dockstar
. Now that we think of it, this really shouldn’t be all that hard since the Dockstar can run a Linux kernel and it has USB ports. [Peter] took inspiration from [Sprite_TM’s] key chain LCD4Linux hack that
we looked at many moons ago
. He used a cheap Coby DP182 digital picture frame that can be picked up for less than $5 used. A bit of firmware hacking and LCD4Linux has no problem pushing images to the device via USB. [Peter’s] setup refreshes the screen at one frame per second, but if all you need is a bit of feedback from
the otherwise headless system
this is a great solution.
[Thanks Mikka]
| 15
| 15
|
[
{
"comment_id": "215082",
"author": "The Moogle",
"timestamp": "2010-11-19T19:26:56",
"content": "neat!I’ve been looking into using a Didj or LX as a display for the dockstar using usb gadget modified",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215143",
"author": "thegoddamnedbatman",
"timestamp": "2010-11-19T23:43:58",
"content": "Where might one source one of these keychains?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215145",
"author": "MRC",
"timestamp": "2010-11-19T23:53:24",
"content": "anyone got a source for cheap dockstars? can’t seem to find any, apparently I missed the initial rush.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215153",
"author": "Just me",
"timestamp": "2010-11-20T00:07:23",
"content": "Amazon and seagate.com, about $40.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215154",
"author": "adam",
"timestamp": "2010-11-20T00:13:11",
"content": "@batmanCheck the website link I’ve got, they list what’s supported. Try and go for something more name brand (the Coby ones). The real cheap ones can look the same but then have totally different boards/firmware and might require you to decompile the firmware and add support yourself. You can usually find these things on eBay although sometimes actual stores can carry the one you want.@MRCCheck eBay or Amazon, should be able to score one for <$30.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215520",
"author": "Mr Hacker",
"timestamp": "2010-11-20T19:52:25",
"content": "#correction – key chain LCD4Linux hack that we looked at many moons ago.didnt you mean key chain LCD4Linux hack that we looked at many months ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215573",
"author": "andres",
"timestamp": "2010-11-20T21:33:54",
"content": "@ MR. Hackermany moons ago is just another way to say a long time ago, it’s still correct.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215586",
"author": "MaxwellMudd",
"timestamp": "2010-11-20T21:48:26",
"content": "Seriously Mr. Hacker, have you never heard the expression “Many moons ago”? It’s a reference to the way many of the older indigenous peoples(native americans, early europeans, pretty much all ancient peoples) used to track months, by the phases of the moon.Kids these days, I tell ya’, no historical perspective.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215758",
"author": "MS3FGX",
"timestamp": "2010-11-21T07:44:12",
"content": "This is a great use for a cheap piece of hardware. I’m tempted to buy a bunch on eBay now before sellers get wise and start bringing the prices up on the older ones which use the proper chipset.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215838",
"author": "Kevin",
"timestamp": "2010-11-21T10:17:57",
"content": "Ha, I knew I couldn’t be the only one to think of this. I actually just picked up a Coby DP151 to do the same thing, but I haven’t had time to properly set up my Dockstar yet.I didn’t see any specifics on the link, but I still need to check if it’s possible to flip the mini-B USB connector around and mount the keychain on that. It looked like it might be possible and still make a good enough connection with the keychain, or else I can just cut away some of the ledge on the front. Done correctly it might even look like it belongs there and you don’t lose a full size USB port.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217569",
"author": "Jimbo",
"timestamp": "2010-11-24T09:25:17",
"content": "Kevin: The connector can be flipped. I ended up ordering the Shift3 photokeychain instead because the usb plug is both on the bottom of the screen’s proper orientation AND with the wide end front. No modification needed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217685",
"author": "Kevin",
"timestamp": "2010-11-24T13:40:02",
"content": "@JimboGood to know, most of the ones I’ve seen have the port on the short side with the wide end at the back. Once I get things set up I guess I’ll find out how big of an issue orientation is going to be. I haven’t gone much further than flashing my Coby as of yet. I managed to completely brick a generic Innovage frame just by plugging it in and not updating it with anything, but at least it was free!I should probably sign up over at doozan once I get things going.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219535",
"author": "Jimbo",
"timestamp": "2010-11-27T03:14:13",
"content": "@KevinUnfortunately the pictures lied and the Shift3 I got is actually slightly different than what i thought i was getting… However, the picture frame fits pretty well by just putting it straight into the dock.http://i.imgur.com/ncJD5.jpgFrom my understanding, the Coby DP15*2*’s are similar in shape/thickness with the plug in the same spot.If you prefer to have the LCD screen facing the same side as the LCD… yeah, no problem. Pull the emi shielding tape off the underside of the shell, remove two screws and flip the plug, bend the cable in the other direction and you’re set.As far as the Shift3 goes, was able to hack it using Peter Gunn’s generate-hack.pl script. You can see in the thread how my experience went. ;) (Generating a hack is easy. Follow the directions, edit the offset in the spec file and reassemble, renaming directories if the process stops before it reaches your own)Like the Picframe wiki says, the battery icon stays on top, but a small area of the screen to work around.I also ordered the DP151SX after I found a guaranteed revision that I would be able to hack. I think you’ll be able to (after flipping the plug) just stand the Dockstar on its side for the screen orientation to be correct. If I’m guessing right, that means one USB plug will be accessible from top. I like this. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "242375",
"author": "Ryan",
"timestamp": "2010-12-04T03:30:12",
"content": "I’m having issues getting my usb rosewill docking station to sleep while plugged into my dockstar. Can any one help?? the hd is a wd 10ears 1tb.Thanks in advance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "246246",
"author": "Just me",
"timestamp": "2010-12-04T16:24:15",
"content": "http://en.wikipedia.org/wiki/Hdparmor ‘man hdparm’ may help",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.422602
|
||
https://hackaday.com/2010/11/17/2010-hacker-gift-guide/
|
2010 Hacker Gift Guide
|
Joseph Thibodeau
|
[
"Hackaday links",
"Roundup"
] |
[
"christmas",
"gift",
"guide",
"hanukkah",
"holiday",
"kwanzaa"
] |
You’ve probably been fantasizing about getting amazing gifts this December, like robots with servo-mounted laser pointers and authentic battle damage. It’s time to realize that it’s unlikely that this will happen.
Stay calm
. You can still get sweet hacky things if you just forward this gift-giving guide to your friends and loved ones.
Join us after the break to see what we want and be sure to let us know what you’ve got your eye on.
Basic Tools
Everyone needs a good set of tools, but a depressing number of people lack even the most basic elements of an electronics workshop. Teeth may have served you for years but we highly recommend
an adjustable wire stripper
(fun fact: if you dress it up with googly eyes it looks like a dinosaur).
This pair of flush cutters
is honestly the most fulfilling hand tool available, making every hacking session a cathartic series of precise snips. For the ultimate experience consider the
ever-useful electronics multitool
. You can’t very well make good use of these tools without good visibility, so shed some light on the situation with the humble
clamp lamp
and its more capable cousin,
the magnifying clamp lamp
.
Luxurious Options
If you’re more of a martinis-and-caviar hacker you can spare some cash for fancy kits like those drool-worthy
makerbot apparatuses
or the succulent-sounding synth kits from
PAiA
. For a homegrown approach, you could put together simple kits for your own project ideas–a perfect excuse to teach the little ones how to solder!
Development Platforms
Nothing beats the narcotic possibilities of powerful general-purpose hardware. For an affordable and pint-sized software dev machine this
Dell Mini
comes to mind, great for a hackintosh. Does your hacker giftee really want a dog but can’t handle the constant stream of cleanups? Give them a
beagleboard
and encourage them to build a no-mess robopuppy. If you’re comfortable giving a child’s toy to a grown adult, don’t forget the
ever-hackable
furby
. For a more personalized approach we recommend hacking a
dancing santa
from the local department store and converting it into a terrifying and festive
Santapede
gift–win prizes while you’re at it, but you’d better have it done by November 30th!
Undecided?
You can always go the route of gift certificates and let people pick out their own gift, you uncreative buffoon, to juicy sites like
Adafruit
,
Seeed Studios
,
Sparkfun
,
Macetech.
seeedstudio
,
littlebirdelectronics
, and
MakerSHED
.
If you have more gift ideas please for goodness sakes share them in the comments! We all need to band together, some of us are really sweating about the holiday season. Whatever hacky loot you end up distributing, don’t forget to include the greatest hack of all: love.
| 28
| 27
|
[
{
"comment_id": "214079",
"author": "Roon",
"timestamp": "2010-11-17T23:40:10",
"content": "If only there was a company that kits and other hackful goodies in the UK, I bought some stuff from adafruit earlier this year and the shipping was nearly the same price as the actual items…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "214080",
"author": "Caleb Kraft",
"timestamp": "2010-11-17T23:42:15",
"content": "@Roon,There’s littlebird electronics. they’re in australia though, so I don’t know if it would be any cheaper. Oh, and alsoseeedstudio.com",
"parent_id": "214079",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "214096",
"author": "chango",
"timestamp": "2010-11-17T23:57:28",
"content": "I think that for most of us, “luxurious options” should include a laser cutter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214114",
"author": "Tweeks",
"timestamp": "2010-11-18T00:30:06",
"content": "If the UK treated Engineers with more respect in the business world, then you would enjoy the same access to technology that US and other modern countries do.It’s a real shame that a inventors and scientist (as we call them in the US) in the UK is labeled a “tinkerer” and looked down on. The sciences in the UK take a back seat to economics and business.This is why Germany, Russia and of late India and other Asian countries have accelerated in Engineering while the UK has stagnated.I hope we don’t start going the same way in the US or I’ll be screwed too.Sorry.. off topic I know..Tweeks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214122",
"author": "Filespace",
"timestamp": "2010-11-18T00:52:49",
"content": "http://www.kitsusa.net",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214123",
"author": "nave.notnilc",
"timestamp": "2010-11-18T00:54:41",
"content": "anyone who buys a makerbot at this point is silly. reprap mendel kits are available for not too much more, and are way better (far larger print volume, faster, arguably more open). for example:http://mendel-parts.com/andhttp://www.botmill.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214125",
"author": "alan turing's dog",
"timestamp": "2010-11-18T00:57:53",
"content": "Enhanced pat down + 1 oz tube of chocolate, caramel or fudge frosting from grocery store. It’s amazing how quickly you can get through the grope when the results come back “positive for brown”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214132",
"author": "strider_mt2k",
"timestamp": "2010-11-18T00:59:31",
"content": "*Leatherman PST 300 (tac black with the crimper jaws)*Haipad 710-R*Spy Video TRAKR-and it’s happening.(Well because I’m an adult and I can get my own toys):p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214133",
"author": "alan turing's dog",
"timestamp": "2010-11-18T01:00:20",
"content": "Sorry, that was the wrong post.I meant to say that the kinect looks like a good time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214145",
"author": "jh",
"timestamp": "2010-11-18T01:47:53",
"content": "@Roon,http://www.oomlout.co.uk/could be worth a look.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214152",
"author": "Andrew",
"timestamp": "2010-11-18T02:15:24",
"content": "@ Tweeks,I understand that your opinion is that your country gets no respect/sucks at engineering, but you don’t get respect AND THEN all of a sudden get good at engineering. You first must make feats such as the USA that was the first to put a man on the moon, will be the first to put a rover on mars, the hoover dam, the first airplane, world trade center, and the golden gate bridge, and that is why USA has respect. Or germany with the first car. So I’m confused why you think that were heading in the wrong direction!? HAHA. I think you’d be lucky to and also many people would agree!;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214156",
"author": "reemrevnivek",
"timestamp": "2010-11-18T02:51:45",
"content": "That pair of flush cutters may be the most fulfilling hand tool available, but it also has an annoying tendency to shoot little wire spikes all over the place (In your eyes (ow), subtle shorts in exposed circuit boards sitting on your bench, into your keyboard…).Sorry to sound like an advertisement, but Xcelite’s ‘175D’ flush cutting shears with safety clip and ESD protection are $1.17 cheaper, and have a neat safety clip on the blades that grabs the wire chunks so you can neatly drop them in the wastebasket. The clip is ust a little chunk of wire, but it makes a big difference. Take a look at them here:http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=175DCI-ND",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214158",
"author": "kyoorius",
"timestamp": "2010-11-18T02:55:00",
"content": "need to add “festivus” to the tags",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214161",
"author": "mjrippe",
"timestamp": "2010-11-18T02:58:21",
"content": "Instead of the Paia kits, grab a Korg Monotron for $60 and use the publicly released schematic to mod it into something even cooler!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214166",
"author": "BiOzZ",
"timestamp": "2010-11-18T03:41:00",
"content": "i have an auto adjusting pair of wire strippers i got from radioshack and there AMAZING i LOVE it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214273",
"author": "Jeditalian",
"timestamp": "2010-11-18T08:44:08",
"content": "i can buy a laser cutter at dollar tree. $1.will cut a laser right in two (and more little pieces if you want bc i’m talking about cutting pliers, “wirecutters” and using them to crush a laser diode.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214355",
"author": "Mark",
"timestamp": "2010-11-18T14:18:25",
"content": "@ TweeksThe last time I checked Lotus (One first things GM had them do when they bought them was redesign the Z1 Vette), Rolls Royce(jet engines), Cosworth, Williams and McLaren were all based in England. I would have to say that qualifies them as having some decent engineers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214391",
"author": "nootropic",
"timestamp": "2010-11-18T15:44:35",
"content": "Hackvision, the little hackable retro gaming system:http://nootropicdesign.com/hackvision/Sorry for the shameless plug, but I released this specifically targeting the hack-minded gift giver for this season.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214393",
"author": "La[bRat]",
"timestamp": "2010-11-18T15:49:15",
"content": "Just to weigh in on the UK engineers thing, I think it’s probably worth mentioning ARM, the highly underrated success story whose processor designs power most of the cell phones and embedded computer systems in the world. Let’s also not forget the turing machine, the steam engine, the world wide web… Engineering in the UK is alive and kicking!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214400",
"author": "jeff-o",
"timestamp": "2010-11-18T16:03:51",
"content": "robotshop.ca is a great place to get all sorts of robot-related stuff.Shame that Mouser and Digikey don’t offer gift cards!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214543",
"author": "David",
"timestamp": "2010-11-18T19:13:39",
"content": "I certainly think the UK has had some of the cleverest designs over the years, but let’s stick to the facts. Lotus designed the 32 valve DOHC heads for the (previous) Corvette ZR1’s engine, which was built by Mercury Marine. They did NOT redesign the car. They were too busy pioneering active suspension systems, a much less mundane undertaking than designing a mass production car. Think drilling for oil in the Gulf of Mexico is challenging? Try the North Sea. Other cleverness? Gloucester Meteor, Colossus, radar… but yes, those were a long time ago. I agree that UK tinkerers get short shrift, but so do many of those in the US. For every acclaimed Dean Kamen or successful Vernon Gleasman, there are thousands who remain anonymous and pennyless and whose ideas are stolen, regardless of what patents they held.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214664",
"author": "Whatnot",
"timestamp": "2010-11-18T20:51:59",
"content": "You guys don’t get the point, the commenter meant that there’s no popular support for people into technology, not that there aren’t any british engineers at all, nobody in his right mind would claim that, in fact nobody out of his mind would manage to claim that.You can list so many british engineering that hackaday would go bankrupt from the hosting of the list, but that doesn’t change anything if the general society sneers at the concept of tinkerers in technology and there are not enough sources to get supplies in a normal fashion, (normal not being ordering it from australia).I think it’s a more general problem in all of europe though and not specifically british, and I think the high tax rates in the EU and all the regulation have a lot to do with it too, makes setting up small shops that make enough profit a lot harder I imagine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214703",
"author": "alan turing's dog",
"timestamp": "2010-11-18T22:08:01",
"content": "@whatnotTechnology is like Art. An artist makes things because he or she wants to (see note 1), and money, fame or recognition isn’t usually the driver behind such creation.It’s the same for “Tech” – the people who do it for money are seldom as good or as driven as those who do it for other reasons.Society does not sneer at the general concept of Tinkerers, at least not directly. It’s just that the people you’re talking about tend to be short on good looks, money and social graces. They would much rather more discuss and debate topics many find to be tedious – these are far more exciting for them than being a good listener.Finally, the “inventor class” tend to be solitary animals, and thus are marginalized. Nothing has changed since the 1300’s – sometimes engineering and tech are in vogue, and sometimes they are not. However, three things remain constant:1. If you want to be considered an idol/rockstar/famous, you need to learn to hack the publicity machine. Steve Jobs is not brilliant. Steve Job’s publicists are very brilliant.2. Being a tinkerer will never get you laid by the kind of chicks who happen to be most desirable. Even Leonardo DaVinci, one of the greatest tinkerers of all time, had to satisfy himself with a rotating cast of young male groupies. That had to hurt!3. You can be brilliant, but if you cannot transmute solder into gold, brain cells into bullets and sketches into licensing agreements (on behalf of rich and/or powerful men), you will never be rich. Your ideas will be stolen and improved upon.Way of the world, man.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214705",
"author": "alan turing's dog",
"timestamp": "2010-11-18T22:14:42",
"content": "note 1:Actually, the artist generally creates because of a damaged and twisted childhood, but it’s not like engineers have much room to brag. I don’t see a lot of difference between doing advanced analysis of the Riemann-Darboux Definition and the practice of cutting. Same results.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214712",
"author": "MoJo",
"timestamp": "2010-11-18T22:29:02",
"content": "R&D is undervalued in the UK. We only seem to want to invest in things that have immediate commercial value. There are exceptions but getting funding for development is very hard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214921",
"author": "Drone",
"timestamp": "2010-11-19T09:11:40",
"content": "Engineers are NOT respected. I got so tired of hearing MBA types saying, “Let me ask my Engineer” or “I’ll have my Engineer get back to you”; like Engineers are farm animals – I quit.Now I’m a free-lance Hit-Man…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215043",
"author": "Shorin",
"timestamp": "2010-11-19T16:51:02",
"content": "Why isn’t there some sort of sweet electronics probing/scope/etc tools on this list?I think I will ask for one of those this year. I hope I can get a scope for under $100. That would be nice. Then I’d have to figure out how to use it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215085",
"author": "Ian",
"timestamp": "2010-11-19T19:33:01",
"content": "My recommended hacker gifts would be:*Aoyue 968, the best 3-in-1 soldering station for about $100. Reviewed here on Hack a Day somewhere*Proxxon TBM220/110 drill, for super clean PCB holes and PCB mods (when you gotta destroy and retap a trace, save so many board re-dos). Also reviewed here on HaD*That new 5x head visor from Adafruit, that’s on my personal list this year, I’ll let you know how it turns out :)*Jewelers loupe and bright light, for inspecting SSOP soldering*00 tweezers, scalpel, and other surgeons tools for placing SMD parts by hand, other ‘corrections’*real debuggers: ICD/PICkit, FT2232-based JTAG debugger for OpenOCD, MKII (or whatever AVR is doing these days), something MSP430 (if you’re into that kind of thing)*Prototyping tools like the bus pirate/bus ninja, a logic analyzer (Saleae or Logic Sniffer)*Flux. lots and lots of flux. You can never have enough really.Maybe an o-scope, but I’ve never needed one.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.490668
|
||
https://hackaday.com/2010/11/17/pc-monitor-sleep-mode-using-iphone/
|
PC Monitor Sleep Mode Using IPhone
|
Mike Szczys
|
[
"iphone hacks"
] |
[
"nircmd",
"php",
"quickphp",
"sleep",
"windows"
] |
[Mike Silverman] rigged up a way to
make his monitor sleep from an iPhone
. Working with a Windows system, he installed QuickPHP and NirCmd to add PHP and command line controls. Some quick PHP code writing and this has the effect of creating a sleep button toggled via a network address. He loads up the IP and port information in the Safari browser of his iPhone, creating a Home Screen short cut seen in the image above. Now he clicks on the button and puts the screen to sleep.
It’s not that we find this functionality useful since most monitors sleep after a few minutes of inactivity. But we like the methodology and you can bet we’re already planning uses for this. Any PHP server (like the copy of Apache running on this machine) will do as long as it’s on the same LAN as the iPhone’s WiFi connection.
| 31
| 31
|
[
{
"comment_id": "214010",
"author": "Alex Rossie",
"timestamp": "2010-11-17T21:10:27",
"content": "How is this a hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214012",
"author": "Josh",
"timestamp": "2010-11-17T21:14:05",
"content": "Have been doing this with EventGhost and X10 for a while now. It works well",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214013",
"author": "poot",
"timestamp": "2010-11-17T21:14:11",
"content": "Why not just set the screen saver to put the monitor into stand-by…seems like a lot of work for nothing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214017",
"author": "VODKA",
"timestamp": "2010-11-17T21:25:55",
"content": "Yea, it’s not really usefull in this way. But if you do some port forwarding on your router or modem, you could just start an FTP server from your phone to get some stuff of your computer while you are not home. Or something like that. This could be usefull in some ways.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214019",
"author": "Aaron",
"timestamp": "2010-11-17T21:33:31",
"content": "So…a web app? Little novice-level for Hack a Day, isn’t it?Better keep it behind a firewall, too, or every bored thirteen-year-old on 4chan’ll be pissing you off just for the hell of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214028",
"author": "Erik Johnson",
"timestamp": "2010-11-17T21:37:44",
"content": "I’d like to submit my iphone hack:Open mobile safari and type inhttp://www.hackaday.com/Create bookmark to home screenHack A Day app on the springboard!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214031",
"author": "poot",
"timestamp": "2010-11-17T21:41:48",
"content": "@Erik JohnsonHAHAHHAHHAA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214032",
"author": "DarkFader",
"timestamp": "2010-11-17T21:42:55",
"content": "“I’d rather see a proper solution to that!” or something in the lines is all I can come up right now. Screensavers do it automagically too.My room lights go on automagically whenever I enter the room. Turning lights on is more useful than turning them off, don’t you think?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214033",
"author": "dcroy",
"timestamp": "2010-11-17T21:43:25",
"content": "that is quite a bit of work to just put the monitor into sleep modebefore my remote control bay fried i could do the same thing using intelliremotehttp://melloware.com/products/intelliremote/it has an iphone app too",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214038",
"author": "Whoever",
"timestamp": "2010-11-17T21:53:35",
"content": "@ the screensaver guys:Nope. Some of us need the monitor to be on and stay on indefinitely, even if there’s no activity anywhere near the computer.No automated solution will ever work in these situations, at least not until AI can tell what you’re doing and when you’re done, but that’d be a little overkill.I just put a “monitor toggle” button in my IR remote. I hate touch screens for control, real buttons FTW.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214045",
"author": "Cole Faust",
"timestamp": "2010-11-17T22:09:51",
"content": "I did something like this, but php launched iTunes on my Mac. I wanted this because the remote app for iTunes would only open my computer’s music if iTunes was open, and now I have a button on my homescreen to do that!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214046",
"author": "homb",
"timestamp": "2010-11-17T22:10:48",
"content": "when i read this i thought it was gonna be some bluetooth monitoring daemon on the pc that noticed when you left your desk.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214048",
"author": "DroneZone",
"timestamp": "2010-11-17T22:14:07",
"content": "I think VLC remote is better “hack” than this. You can use your phone as a fully functional remote control and setting it up takes couple of minutes.You can browse for movies on all your mounted drives as well.I thinking of developing an app tho for my N900 in QT to interface with my relay board which controls stuff in my house. Even tho that has web frontend as well but who the hell want to open the browser all the time. I just need some fast app with big icons to keep clicking on for the relays.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214058",
"author": "BiOzZ",
"timestamp": "2010-11-17T22:31:43",
"content": "this is one of those problems you never thought you had until a solution is made XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214062",
"author": "Henrik Pedersen",
"timestamp": "2010-11-17T22:42:07",
"content": "Uhm… This is fail?I already has a widget installed on my HTC Desire, which is transferring transparent TCP commands to a proxy server on my public domain (as security measure) and when it goes back to my house and when into my home control system…I have 4 buttons, Lights on, Lights off, Unlock door and Sleep/Wake up … Oh and not to hijack anyone, but if someone is interested it’s up on my blog in a few days when I’ve finished some “tracking device” :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214068",
"author": "Concino",
"timestamp": "2010-11-17T23:17:12",
"content": "I guess he uses his computer monitor as TV and watches it in bed. I cannot think of any other reason why this would be helpful otherwise. Even then it might be faster to just walk to the monitor and hit the power button.WHY is this advertised as an iPhone solution? Any device with wifi and browser can do the same thing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214075",
"author": "Aeros",
"timestamp": "2010-11-17T23:32:06",
"content": "I used to do this all the time 8 or 9 years ago to shutdown or reboot our application servers. It’s not that what he did isnt a big deal its that there are several other applications if you *THINK* about it.This might be lost on some of the people here though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214102",
"author": "Brett",
"timestamp": "2010-11-18T00:15:18",
"content": "This is really cool, as it could be used for many more things. NirCmd has a lot of functions other than putting a monitor to sleep, and I think this is just laying a framework for other simple tasks to be performed remotely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214115",
"author": "icebrain",
"timestamp": "2010-11-18T00:35:37",
"content": "Blueproximity:http://sourceforge.net/projects/blueproximity/Can run a script when it detects your bluetooth-enabled phone comes near, and another when it goes away.I use it to activate xscreensaver, which locks the screen and sleeps it after 2 minutes.When I get back, it auto-unlocks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214151",
"author": "M4CGYV3R",
"timestamp": "2010-11-18T02:07:39",
"content": "@whoever What could you possibly be doing that precludes display sleep?My computers all have a power button, which I have told windows to treat as a sleep button. It’s actually faster to walk 5 feet and press a button than it is to unlock my phone, turn on wifi, and navigate to some address.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214157",
"author": "Paradox",
"timestamp": "2010-11-18T02:54:46",
"content": "In linux I made it so that when I walk away with my phone it locks the computer using xscreensaver and turns the monitor off. then when you walk within distance think it was rssi=-16 then the screen turns back on and the login prompts you.And that was just a simple bash script",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214159",
"author": "Paradox",
"timestamp": "2010-11-18T02:57:44",
"content": "Just saw blueproximity’s post. didn’t realize they made a program out of it lol ^_^ there ya go",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214252",
"author": "therian",
"timestamp": "2010-11-18T07:03:22",
"content": "Have some respect for disable, this guy have iphone after-all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214257",
"author": "Anonymous",
"timestamp": "2010-11-18T07:18:54",
"content": "Perhaps I’m missing something, but why did he compress a 158 byte PHP file into a 264 byte ZIP archive?I see the utility of being able to turn the monitor off remotely, but is it really that much of an advantage over just turning the thing off manually? While you’re at it, why not turn the whole computer off, and save some energy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214275",
"author": "PlastBox",
"timestamp": "2010-11-18T09:06:28",
"content": "Why are you guys all ragging on this guy? By your mentality, why does this site even exist? Hell, why do anything at all, ever? It’s not like a passable solution can’t be bought.Number one reason for hacking, the motivation behind 95% of everything posted here and the reason why turning off your monitor from bed with your touchscreen phone is cool:Because we can.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214294",
"author": "Someone",
"timestamp": "2010-11-18T10:39:54",
"content": "I visit this site because people repurpose things and / or spend what seems to be a lot of time / thought / effort into assembling physical thing or coding reasonably large programs (or if they do it in a really obscure, thought provoking way)This hack requires almost no ingenuity, uses off the shelf programs, and 3 lines of code. I’m fairly certain I typed out the glue code faster than I would downloading the zip file. I never actually did, and I assume he did something like this:Then entered his phone browser, typed “http://ip/monitor/” and saved the shortcut to the desktop). I farted this out in about 60 seconds (that includes looking up nircmd’s arguments online).I guess it’s all relative. You have to factor in what phone he has. It’s so locked down that doing anything “nonstandard” is a hack.P.S. Careful, this thing uses PHP script, which is illegal in the store — it might get banned. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214295",
"author": "Someone",
"timestamp": "2010-11-18T10:41:24",
"content": "hmm… the comment system edited out my php. No fear, I’ll even spend another 20 second retyping it:",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214741",
"author": "Someone",
"timestamp": "2010-11-18T23:28:10",
"content": "> I visit this site because people repurpose things and / or spend> what seems to be a lot of time / thought / effort into assembling > physical thing or coding reasonably large programs (or if they do > it in a really obscure, thought provoking way)> This hack requires almost no ingenuity, uses off the shelf> programs, and 3 lines of code.yea> I guess it’s all relative. You have to factor in what phone> he has. It’s so locked down that doing anything “nonstandard”> is a hack.you could do all things on the iphone, first you could jailbreak it and you could also use adhoc distribution and sell your app through a website and so on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214833",
"author": "Someone (2:39am and 2:41am) =P",
"timestamp": "2010-11-19T04:10:08",
"content": "@Someone (3:28pm)I’m trying to determine your intent: are you simply agreeing with me? Installing apps not from the store is “nonstandard” on those devices, so it require a hack to the phone — and therefore agree with my “nonstandard”=”hack” statement?I’m just waiting for them to use the E-Fuse like technology, making it retardedly difficult to do anything bordering a “hack”. The Android phones that do have this hack (last I heard) were only able to get root, but without any way to get code to do anything meaningful to the file system onto the device, you can’t do anything with root. Nobody else has that problem because the market is barely filtered, plus “[ ] Enable External Sources for Apps”With so much control over their own ecosystem, I’m surprised they haven’t done so before.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214929",
"author": "Whatnot",
"timestamp": "2010-11-19T09:44:14",
"content": "I thought everybody that reads hackaday and has an iphone would have it jailbroken, (and 50% of the rest of the iphone users).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215286",
"author": "Whatnow?",
"timestamp": "2010-11-20T06:19:06",
"content": "Hmm, this seems to me that this hack (ignoring the debate whether this is a “hack” or not) is actually platform agnostic and could actually be from any device as long as it can run wget or a browser. The proper title of this article should be:“PC monitor sleep mode using any browser”But I guess it’s not as cool sounding.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.619334
|
||
https://hackaday.com/2010/11/17/build-a-pong-gaming-console/
|
Build A Pong Gaming Console
|
Mike Szczys
|
[
"home entertainment hacks"
] |
[
"8x8",
"arduino",
"matrix",
"MAX7219CNG",
"pong"
] |
A lot of thought went into [Patrick Mccabe’s]
Pong gaming console build
. He used components we’re familiar with; an Arduino as a controller, 8×8 LED modules as the display, and potentiometers (with fancy knobs) in project boxes as the controllers. But every step along the way he took care to build this cleanly and robustly. Even the MAX7219CNG drivers for the six LED modules reside on PCBs from a fab house. The finished project is something you’d be proud to pull out and play when you have friends over. Even if they’re not part of the geek elite we think they’d enjoy a game or two. Great job [Patrick]. We hope to see an internalized microcontroller and scoring in your next update!
Want to do this but the cost of the matrix drivers scared you away?
Follow our tutorial
to build your own display using an AVR for the multiplexing.
| 18
| 18
|
[
{
"comment_id": "214000",
"author": "spiritplumber",
"timestamp": "2010-11-17T20:45:31",
"content": "This is a Pong game table. All craftsmanship is of the highest quality. It menaces with spikes of awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214003",
"author": "Egonis",
"timestamp": "2010-11-17T20:52:01",
"content": "Uhmm… where do I buy the kit? :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214008",
"author": "Chris the Carpenter",
"timestamp": "2010-11-17T21:07:55",
"content": "You would like to see an “internalized” microcontroller? Really? You want to hide the brain away inside that box? Well, I guess we can’t all have good taste…. For the record, the Arduino is right where it should be –out for the whole world to see… I wish all the beautiful PCB’s pat designed were able to be shown as well! Nice work, Pat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214030",
"author": "NatureTM",
"timestamp": "2010-11-17T21:39:14",
"content": "You can get four 8×8 matrices on a board with a serial interface for $10 on eBay.http://cgi.ebay.com/0832-LED-Dot-Matrix-Red-Display-Information-Board-NEW-/230550912760I prefer made from scratch, but I’m lazy, so I usually just get carry-out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214047",
"author": "fluidic",
"timestamp": "2010-11-17T22:11:46",
"content": "Matrix drivers? You could probably do that entire thing in sweep mode with a few TLC5940s and a mux. The GPIO overhead for driving even a large matrix array is pretty low with this approach.If you only have a few values to choose from, you can do it more cheaply by setting up a few signal sources with the duty cycles you want (555s), buffer / amplify the result, and then use a few GPIOs to control a mux array which maps source to output.Oh, and latched-output serial to parallel shift registers are a lovely thing as well. You can grab two dozen for about five bucks, mux the input, and then drive that whole mess off a bare handful of GPIOs again (while having lots of leftover ICs).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214049",
"author": "Tweeks",
"timestamp": "2010-11-17T22:17:43",
"content": "Weeeeak..A guy in our user group built a multi-color version that uses the 8-core propeller uController that does real time text scrolling (font ripped from the C64 ROMs) on a tri-color 64×32 LED panel:http://xcssa.org/photos/2008_XCSSA/video/10-20_DSCF2938.flv.htmlAnd that was his old version.The new one is made up of 2 or 4 of these panels and plays breakout! hehe.Tweeks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214065",
"author": "Bill",
"timestamp": "2010-11-17T23:03:50",
"content": "Yay Patrick! I love it.@Tweeks, This Pong was made by a person significantly younger then the one you linked. It is a good accomplishment, not ‘weak’.@fludic, I agree, I would have liked to see cheaper driven method, though Patrick got the chips for free, the rest of us aren’t so lucky.@Egonis et al. I’m making a ‘kit’ for a cheap Arduino powered matrix driver. One AVR for 10 matrices, and only using 6 IO pins. I plan on partnering with Patrick (for code) when I finish, and could very well sell a ‘Pong’ game kit.Details:http://www.billporter.info/arduquee-an-arduino-powered-marquee-design-log/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214072",
"author": "Hirudinea",
"timestamp": "2010-11-17T23:28:31",
"content": "I love old school games and old school craftsmanship, just stain the wood.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214124",
"author": "merser",
"timestamp": "2010-11-18T00:56:30",
"content": "Nice Job Patrick. @tweeks… there’s probably a million different ways to implement pong, lets see yours instead of saying someone else’s is better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214134",
"author": "Erik Johnson",
"timestamp": "2010-11-18T01:07:22",
"content": "@Tweeks That panel is a preassembled unit, being driven by a preassembled mcu. The only thing he did was put potentiometers in a box, wire it up and code it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214143",
"author": "Onelix",
"timestamp": "2010-11-18T01:27:36",
"content": "I was trying to make a electromecanical version of a pong. any ideas?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214148",
"author": "Erik Johnson",
"timestamp": "2010-11-18T01:53:08",
"content": "@Onelix pinball bumpers & a pinball, plus the ball return mechanism. Mount the bumpers on a cable/pulley system.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214296",
"author": "strider_mt2k",
"timestamp": "2010-11-18T10:43:10",
"content": "That looks like it would be fun to play.It also looks very nicely built.hey uh…next game?:)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214297",
"author": "strider_mt2k",
"timestamp": "2010-11-18T10:45:13",
"content": "-and yes the stuff is pre-assembled.-they just removed the bits that didn’t resemble their project and added ones that did is all. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214450",
"author": "AO",
"timestamp": "2010-11-18T17:46:49",
"content": "Looks great! My only suggestion would be smoked/tinted acrylic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214736",
"author": "Tweeks",
"timestamp": "2010-11-18T23:06:12",
"content": "Sorry all..Nice job Patrick. :)Keep up the good work man!Tweeks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214786",
"author": "Paul Potter",
"timestamp": "2010-11-19T01:40:48",
"content": "Very nicely done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215482",
"author": "rik",
"timestamp": "2010-11-20T17:47:51",
"content": "@onelix: This EM Pong made all the blogs some time ago:http://cyberniklas.de/pongmechanikor perhaps it was this one:http://www.evilmadscientist.com/article.php/pong",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.54834
|
||
https://hackaday.com/2010/11/17/make-a-point-and-shoot-see-infrared-light/
|
Make A Point-and-shoot See Infrared Light
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"canon",
"filter",
"infrared",
"ir",
"Kinect",
"night vision",
"powershot"
] |
[Daniel Reetz] has caught the Kinect hacking fever. But he needs one important tool for his work; a camera that can see infrared light. This shouldn’t be hard to accomplish, as the sensors in digital cameras are more than capable of this task, but it requires the removal of an infrared filter. In [Daniel’s] case he
disassembled a Canon Powershot
to get at that filter. There’s a lot packed into those point-and-shoot camera bodies and his teardown images tell that tale. He also ended up with extra parts after putting it back together but that didn’t seem to do any harm.
After the break you can see video that shows the Kinect’s speckled IR grid, which is why he needed IR sensing in the first place. But there’s also some interesting photos at the bottom of his post showing the effect achieved in outdoor photography by removing the filter.
The flash never made it back in the camera. That’d be a perfect place for an IR light source. You’d end up with
a night-vision camera
that way.
[youtube=http://www.youtube.com/watch?v=28JwgxbQx8w&w=470]
| 29
| 29
|
[
{
"comment_id": "213976",
"author": "Nabil",
"timestamp": "2010-11-17T19:36:29",
"content": "Cell phone cameras are another way to achieve this as they are all able to pick up light in the infrared spectrum even without a hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213979",
"author": "Lace williamson",
"timestamp": "2010-11-17T19:47:56",
"content": "Nice to see a visualization of how the Kinect works. Did this with an old HP a few years ago except that I also added a visible light filter to mine as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213987",
"author": "Blaughw",
"timestamp": "2010-11-17T19:54:02",
"content": "The CHDK firmware wouldn’t be good enough for this task?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213990",
"author": "Hackius",
"timestamp": "2010-11-17T20:05:38",
"content": "An old nightshot Sony camera will do the trick nicely",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213994",
"author": "Luke",
"timestamp": "2010-11-17T20:18:38",
"content": "Blaughw, the firmware is not the issue. There’s a hot mirror in front of the camera sensor which blocks infrared light and passes visible light. Only way to let the infrared light through is to remove the hot mirror.This is a common practice for infrared photographers and there are commercial services to convert cameras. I’ve modified a few cameras, but for the purpose of infrared photography instead of hacking. I guess the Kinect hacking is why this is featured.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213998",
"author": "Gen",
"timestamp": "2010-11-17T20:28:57",
"content": "My God, it’s full of stars !:p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214001",
"author": "Necromant",
"timestamp": "2010-11-17T20:48:18",
"content": "Woah… Well, 3k buck bounty was the catalyst for the hackers… Guess at this rate by summer we’ll see chineese ‘cinect’ and ‘kynect’ for no more then 30 bucks on dealextreme.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214004",
"author": "R. Barrabas",
"timestamp": "2010-11-17T20:56:38",
"content": "When digital cameras first came on the market, people discovered that some bathing suits are largely transparent to infrared. This led to some interesting (and illegal) beach photos.The IR filters were added to prevent this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214007",
"author": "Casey O'Donnell",
"timestamp": "2010-11-17T21:05:23",
"content": "newer cameras are better at filtering out the infrared. at least for my old canon for outside where its bright you can use the end piece of film negatives and put it over the lens. same thing but lower quality and needs to be shot in bright light with slower shutter speeds. pretty nice for some experimentation without having to get rid of the other features of your camera. i see for dslrs there are lens filters with sorta the same material. infact i think i saw some of this material on a popular auction website with different rated wavelengths.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214014",
"author": "goldscott",
"timestamp": "2010-11-17T21:16:48",
"content": "The IR pattern is interesting. Large “squares” with a bright dot in the middle. You can see a checkerboard pattern…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214026",
"author": "ENKI-][",
"timestamp": "2010-11-17T21:36:12",
"content": "I’m not terribly surprised that the pattern used by the kinect is a checkerboard. Isn’t the pattern used by one of the Makerbot 3d-model-making machines an array of stripes? Now, why don’t we get going and figure out how to replicate the kinect’s features with a hacked webcam, some IR LEDs, a bit of plastic, and a shell script?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214027",
"author": "Funky Gibbon",
"timestamp": "2010-11-17T21:37:24",
"content": "I was under the impresion that if you remove the IR Filter it stops the auto focus working properly",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214059",
"author": "Luke",
"timestamp": "2010-11-17T22:32:26",
"content": "Funky Gibbon, that’s correct for most cameras. Typically a piece of glass that doesn’t block infrared or visible light is installed in place of the original hot mirror so the focus will be similar. In the past I’ve used various thickness of microscope slides cut down in size. Or some people replace the hot mirror with a filter that blocks visible light if they want to shoot only infrared, like the Hoya R72 or similar (cut down to size of course).It varies from camera to camera though. Some will have the focus off by a lot after the conversion and some it will be barely any different.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214060",
"author": "joe",
"timestamp": "2010-11-17T22:36:37",
"content": "here’s another writeup on a newer Canon SX130 IShttp://www.paintballsentry.com/Instructions_Canon_Disassembly.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214071",
"author": "Hirudinea",
"timestamp": "2010-11-17T23:26:06",
"content": "I noticed you said that “He also ended up with extra parts after putting it back together…”, whats the big deal that happens every time I take somthing apart and put it back togther, they’re called “Spare Parts”! I figure if I take somthing apart and put it back togther enough times I’ll eventually end up with somthing with no parts at all! Now THATS HACKING!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214097",
"author": "Jack Sprat",
"timestamp": "2010-11-18T00:01:11",
"content": "It looks like it measures the distance between the dots. As the object gets farther from the kinect, the dots spread out more. I guess the checkerboard pattern helps the kinect when it can’t see certain dots because the emitter isn’t exactly where the camera is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214112",
"author": "Alex",
"timestamp": "2010-11-18T00:23:28",
"content": "I can’t help but notice you didn’t put an IR pass filter over the sensor. Three pieces of exposed (and developed) film negative work wonderfully, but cut everything short of 900nm.900nm is perfect for IR work, but you won’t achieve any sweet false colors like that, just red.I did this to a Fuji Finepix A340 and always convert to black and white.http://www.flickr.com/photos/tavelkyosoba/3599760862/in/set-72157605413598456/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214282",
"author": "Xb0xGuru",
"timestamp": "2010-11-18T09:43:00",
"content": "Excuse my ignorance, but surely the post-IR filter shots are such coloured because you’ve removed a blue filter? Recalibrating (where possible) should bring things back into whack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214298",
"author": "strider_mt2k",
"timestamp": "2010-11-18T10:50:33",
"content": "I’ve used the camera seeing IR effect for years.It still surprises people when I show them their remote control emitter on their cell phone camera.Hey, just a month ago I dropped that little chestnut on the guys at work who repair industrial light curtain safety devices.Now they have a quick and dirty way to size up the emitter side when they get a set in for repairs.I love this crap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214422",
"author": "mic",
"timestamp": "2010-11-18T17:04:07",
"content": "If you take a pic of trees during the day they are all trippy and glowing white. (If they have leaves!)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214749",
"author": "Taylor Alexander",
"timestamp": "2010-11-18T23:50:31",
"content": "I actually made some googles when I was in high school that blocked all visible light. Our eyes are slightly sensitive to near infrared, but normally our pupils are adjusted for the much more easily seen visible light. Filter that out and your pupils open up, letting you see in infrared. The sky is black, plants are white, and as someone said, not all clothes are opaque…Here’s the link:http://amasci.com/amateur/irgoggl.htmlI still have the box of supplies from that project.That website was a whole lot of fun!-taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214793",
"author": "Reggie",
"timestamp": "2010-11-19T02:24:50",
"content": "hmmmmmmn, can someone explain what a ‘hot mirror’ is? I have a canon dslr, it has an IR filter over the sensor, this doesn’t cut out all of the IR, only some of it, removing the IR filter from in front of the sensor gives about 5x sensitivity to IR light and will make the image very pink (naturally), custom white balance will sort it out though. In all of the IR mods to cameras and webcams I’ve never heard of a hot mirror (don’t expect to with a webcam though).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215159",
"author": "cgimark",
"timestamp": "2010-11-20T00:20:06",
"content": "Be careful opening cameras with built -in flash. I was a bit careless and got the crap shocked out of me when I brushed my hand over the capacitor used for the flash while taking the casing off the camera. Even though the camera had been unpowered for some time it still packed quite a charge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217389",
"author": "steven-x",
"timestamp": "2010-11-24T01:32:51",
"content": "Just removed the IR filter from my Canon “Coolpix” I got off eBay for a buck (low risk, the SD card in the camera was work the purchase price!). Anyway, I look forward to playing around with it. Maybe I’ll hack a few old webcams as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217917",
"author": "Frogz",
"timestamp": "2010-11-24T21:56:30",
"content": "….uh….coolpix = nikoni would never hurt my nikon this way…but, i have a old vivitar camera i pulled the hot mirror out of years ago and it has a little ir passing filter that can be slid in and out of the lens path(it was from a old SNES ir wireless gamepad) so it can take weird funky visible/ir pictures and ir only pics",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218752",
"author": "steven-x",
"timestamp": "2010-11-25T23:20:59",
"content": "My mistake. I would not ordinarily hurt a good camera, but I purchased this as a “parts or repair” and found it basically worked. I was goiung to steal the battery door to repair and Identical camera I dropped (ended up buying a replacement door for 5x what I paid for the camera).Now that I got “parts or repair” cell phone for $3 dollars that matches my phone, I can play with it “without fear”. The camera’s IR filter is first to go!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "348009",
"author": "Wondering",
"timestamp": "2011-03-04T11:49:57",
"content": "Seem to be a number of IR experts on here, any info you could help me with? I was wondering if an IR camera mod would help me to see heat loss from a house? like exiting via windows etc, walls etc. My heating bill is ridiculous!Any help appreciated!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "348130",
"author": "Alex",
"timestamp": "2011-03-04T15:44:37",
"content": "unfortunately no, digital cameras see near-IR, bu thermal imaging is based on far-IR and is an entirely different beast.Might look in to a heating/cooling specialist, they’ll often use thermal imagers as part of their inspection process.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "395063",
"author": "Kyle",
"timestamp": "2011-05-17T03:35:46",
"content": "This is really cool. I’ve been wanting to mod a bunch of my old cameras for IR, but one thing has been holding me back:Where would I find a piece of glass the right size/thickness to replace the IR filter that I’ve removed?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.761234
|
||
https://hackaday.com/2010/11/17/crt-art-wobbulator/
|
CRT Art: Wobbulator
|
Mike Szczys
|
[
"Video Hacks"
] |
[
"crt",
"june paik",
"television",
"tv",
"wobbulator"
] |
The Wobbulator
is a black and white CRT television that has additional hardware to manipulate the electrons as they bombard the phosphor layer of the screen. It was created by [June Paik] and you can find it at
The Experimental Television Center
. [Blair Neal] took some time to share the background information and some video on this interesting device.
The television has a second ”yoke” of coils around the ray tube. The TV still functions normally with these coils installed, but running a signal through them can further manipulate the picture. Hook, them up to a function generator and you can get some pretty wild effects. In this case, the signals from a sound generator are controlling the coils, resulting in the audio/video artwork which you can view after the break.
[vimeo=http://vimeo.com/16906546]
| 24
| 23
|
[
{
"comment_id": "213953",
"author": "Fallen",
"timestamp": "2010-11-17T18:50:15",
"content": "Very cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213956",
"author": "leadacid",
"timestamp": "2010-11-17T19:00:53",
"content": "Neat! I do wonder about the tube’s phosphor life though, since the original video signal has the potential for a full strength signal (that would normally be spread across the full screen) concentrated in one spot by the secondary coils. Kinda like how I was always warned to avoid strong concentrated stationary signals on oscilloscopes. Mind, CRTs are a dime a dozen these days so it’s likely not that important.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213957",
"author": "Juan Cubillo",
"timestamp": "2010-11-17T19:01:37",
"content": "It’s been a while since HaD posted something this freaking cool. Thumbs up on this one. No purpose at all… just amazingly simple and elegant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213967",
"author": "karl",
"timestamp": "2010-11-17T19:17:19",
"content": "Shades of the “Outer Limits” opening credits.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213969",
"author": "BLuRry",
"timestamp": "2010-11-17T19:20:26",
"content": "Wonder if this qualifies for a Wile demo compo entry? ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213970",
"author": "BLuRry",
"timestamp": "2010-11-17T19:20:53",
"content": "grr… typo… meant to say “Wild”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213971",
"author": "woutervddn",
"timestamp": "2010-11-17T19:20:54",
"content": "And I was thinking they used vector images to make cool backgrounds…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213974",
"author": "Erik Johnson",
"timestamp": "2010-11-17T19:32:16",
"content": "Haha, I remember back in 1952 we all used to do this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214015",
"author": "poot",
"timestamp": "2010-11-17T21:21:24",
"content": "Nice…old school hacking",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214034",
"author": "Truthhertz",
"timestamp": "2010-11-17T21:44:49",
"content": "As a matter of historical interest… there is actually a real piece of test equipment called a “wobulator.” What it amounts to is a sweep generator, and was used to align filters and tuned circuits.One way to achieve “wobulation” (my term) was to couple the shaft of a variable capacitor to the shaft of a motor. The capacitor was wired to the tank circuit of an oscillator.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214040",
"author": "echodelta",
"timestamp": "2010-11-17T21:57:19",
"content": "I hacked a TV into an oscilloscope in 1970. On the way I hooked up a half video horizontal and half vertical audio combination. I also wired the vertical coils out of phase resulting in the X display of live TV, as seen in one of the videos. A crude synth I made a couple of years later made some really cool vector patterns. I watched brightness and never burned a tube.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214069",
"author": "Hirudinea",
"timestamp": "2010-11-17T23:18:33",
"content": "“We control the horizontal, we control the vertical…”, neat hack, shame you didn’t post it a few weeks ago, it would have been perfect in a “Mad Scientists Lab” Haunted House.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214154",
"author": "Dr. West",
"timestamp": "2010-11-18T02:32:42",
"content": "This is the most beautiful thing I have ever seen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214160",
"author": "beaglebreath",
"timestamp": "2010-11-18T02:58:13",
"content": "As a matter of metrological interest… there is actually a real piece of test equipment called a “wobulator.” What it amounts to is an off-axis rotating table and was used to calibrate accelerometers and vibration test equipment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214215",
"author": "AussieTech",
"timestamp": "2010-11-18T05:22:58",
"content": "@leadacidYou need a kind of analogue spot-killer; rectify some of the X and Y signals and use it to overcome close-to-cutoff bias on the tube grid – automatic brightness control.@TruthhertzThe term Wobbulator comes from “Wobbling Oscillator” and these are still in use for aligning IF strips and other bandpasscircuits, generally in the high-kHz to MHz range. By convention a Wobbulator differs from other tools like sweep generators in that the swept range is very confined, and it may have fixed output frequencies on common IF’s.e.g.http://www.qsl.net/va3iul/Wobbulator/Wobbulator_for_Filter_Charatcerization.htmThis hack is not a Wobbulator but it is a pretty neat idea that deserves its own descriptive name “Raster Maniuplation Unit ” or RMU for short.Get seriously into it here…http://www.experimentaltvcenter.org/history/tools/ttool.php3?id=28&page=1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214241",
"author": "emilio",
"timestamp": "2010-11-18T05:49:47",
"content": "Nam June Paik’s stuff is super awesome. i had the pleasure of seeing a show of his quite a while ago (10 years?). most of his sculptures there used a CRT in some way, as well as some neat stuff with mini video projectors and mini CRTs. they dealt with the flow of information, active and passive media viewing, and what our expectations of mass media are.if Marshall McLuhan were a sculptor, he’d be Nam June Paik.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214276",
"author": "Nick",
"timestamp": "2010-11-18T09:09:29",
"content": "Nice! I did an artist residency at the Experimental Television Center last year, and played with this very same Wobbulator for hours.If anyone else reading HAD is an artist with an interest in older technology, ETCenter is a true wonderland. They invite you to stay all by yourself in a very large room with nothing but AV equipment and a bed in the corner.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214360",
"author": "Kuba",
"timestamp": "2010-11-18T14:37:07",
"content": "it would be cool to take screens at very fast intervals and map them in an z axis to map it in 3d",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214651",
"author": "Gert",
"timestamp": "2010-11-18T20:10:02",
"content": "Very very nice hack. Cathode Ray Tubes have become obsolete tech in the eyes of the normal consumer.But it still is such a nice tech and easy to manipulate. It’s the perfect thing to teach kids about magnetic fields and how to manipulate them. It translates the invisible into something visible.Just too bad it’s so bulky, and a bit dangerous (implosion risk).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214701",
"author": "zeropointmodule",
"timestamp": "2010-11-18T22:03:59",
"content": "someone should try this with an old laptop display- capture the LVDS traffic for a coloured background from the old machine and store it then play back using a micro and serial E2PROM with high speed RAM buffer chips such as the 23K640.should be cool, just shift data around (or change the readback order) on the colour data while leaving the timing intact.a little tip, AA1 screens are relatively simple and have fewer LVDS lines so making things easier, as long as a serial e2prom with screen data is connected on the PC side interface to fool the laptop into outputting data no matter what is connected.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215161",
"author": "Prospero",
"timestamp": "2010-11-20T00:21:45",
"content": "Does anyone know which track is playing in this video ? It’s friggin’ awesome :D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "215274",
"author": "Blair neal",
"timestamp": "2010-11-20T05:17:34",
"content": "The song is tristia by hammock. I highly recommend their latest album called chasing after shadows and their first album called kenotic",
"parent_id": "215161",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "215518",
"author": "Dan",
"timestamp": "2010-11-20T19:44:20",
"content": "LOVE Hammock. Totally made the video that much better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "306609",
"author": "jim",
"timestamp": "2011-01-16T22:54:02",
"content": "Genius :3",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.814701
|
||
https://hackaday.com/2010/11/17/learn-to-reverse-engineer/
|
Learn To Reverse Engineer
|
Caleb Kraft
|
[
"Peripherals Hacks"
] |
[
"Kinect",
"ladyada"
] |
The most common email we get is “how do I learn how to hack things?”. It looks looks like [ladyada] gets that question a lot too. She didn’t waste any time writing up a step by step
guide to reverse engineering USB devices
, specifically the Kinect.
She goes into depth on how USB works, how to record the communication, what to look for, how to deconstruct what you’ve found, and how to put it all to use. This is all done with real world data from the Kinect so you could easily follow along at home. There is source code available so you can download her example and see how to control the device as well.
We wish every hack could be so well written that it could also be called a tutorial.
| 37
| 37
|
[
{
"comment_id": "213888",
"author": "Jake",
"timestamp": "2010-11-17T16:46:57",
"content": "How do you reverse engineer something?You just do it. If you don’t know how, then you figure it out. You learn all of the theory and techniques needed to understand how a system works.If you are going around asking “How do I hack? I wanna be a hacker!” then you’re an idiot. VERY few people qualify as true “hackers”. In order to qualify as such, you must be reverse engineering (and modifying) technical systems, and IT MUST ALL BE YOUR OWN WORK. Following someone else’s tutorial does not make you a hacker, it makes you a n00b. Figure it out yourself. ALL OF IT. Only then might you possibly be able to refer to yourself as a “hacker” (even then, it’s questionable, and ultimately determined by the complexity of the “reverse engineering” that you have performed).I can’t imagine that HAD would ever attract wannabe hacker n00bs (that are really just nubs looking for tutorials, rather than figuring something out for themselves)… xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213891",
"author": "donald",
"timestamp": "2010-11-17T17:02:45",
"content": "captain self righteous strikes again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213895",
"author": "xeracy",
"timestamp": "2010-11-17T17:09:06",
"content": "@Jake – Hacking is comprised of a set of skills and knowledge. The best hackers do teach themselves how things work and how to manipulate them, but that does not mean that these skills are useless or trivial for the rest of the populous. I dont think i’ll ever reverse engineer a USB device, but by knowing how (or at least partially), I have a better understanding of how it works. If we treated medicine the way you are approaching hacking, you would hope your doctor gets lucky as he ‘figures out’ how to remove your tonsils on his own.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213897",
"author": "ril3y",
"timestamp": "2010-11-17T17:10:53",
"content": "I can’t help but disagree. Learning from others that are smarter than you is a very important concept of becoming a hacker. Its true that much of the time you need to try stuff on your own. But stating that “IT MUST ALL BE YOUR OWN WORK” is downright misleading to new “hackers in training”. I have not got to where I am today by living in a box. The internet allows for hacking communities. Go out and learn from other. One last comment the whole noob / hacker mentality is so old. If you ask questions about hacking, you are not a noob. Keep on asking and learning.If you take the Kinect for an example… A driver was published… Now people all over are writing code / hacks for the kinect to do other things. Should they have said. I must re-invent the wheel before I do anything on the Kinect? Course not. Learn to hack… Hack to learn.. Fight trolls… +50 int.Cool stuff Lady Ada.ril3y",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213899",
"author": "Doktor Jeep",
"timestamp": "2010-11-17T17:21:32",
"content": "This work by Lada Ada is out-farking-standing!There is nothing better than a hack/tutorial that intends to teach. Most of the hacks appear to come from people who take something that was already out there, and then make it look more complicated so they look leet. Maybe that impresses college instructors – though most of them can see through that crap as it’s plainly obvious that most script kiddies these days are better at looking smart than actually being smart.I don’t know much about USB, never had the time for it, but this new material is exactly what I am looking for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213902",
"author": "smoker_dave",
"timestamp": "2010-11-17T17:21:52",
"content": "Amazing link, thanks for bringing it to my attention.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213903",
"author": "Gdogg",
"timestamp": "2010-11-17T17:22:02",
"content": "You don’t have to figure out all of it. *rolleyes*Hacking is overused though. IMO a hacker is someone who modifies or uses an electrical or computer system in a way it isn’t intended. That means that ‘life hacks’ don’t exist and that website name is retarded.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213904",
"author": "Gdogg",
"timestamp": "2010-11-17T17:26:59",
"content": "That said, that is a fantastic article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213909",
"author": "AdoZ",
"timestamp": "2010-11-17T18:02:38",
"content": "Excellent article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213943",
"author": "fartface",
"timestamp": "2010-11-17T18:21:33",
"content": "How do you reverse engineer?Step 1 stop being afraid.Step 2 assume you will break it and not be stopped by that.Step 3 do it.Take things apart, get curiosity back in your life, enjoy breaking things. THAT is how you learn this stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213952",
"author": "ClutchDude",
"timestamp": "2010-11-17T18:45:46",
"content": "Thanks fartface!I read your step-by-step instructions, laid out carefully by you, and followed them onward to success!Nice article that spread some light on an area I’m not at all familiar with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213960",
"author": "Jake",
"timestamp": "2010-11-17T19:05:30",
"content": "@xeracyYou’re mistunderstanding what I am saying. Yes, it’s fine to learn from someone elses work, but following a tutorial to “hack” something does NOT make you a “hacker”.Those who *independently* reverse engineer a complex device are the only ones who can potentially call themselves “hackers”.This site seems to attract quite a few nubs who like to follow tutorials (or do something that has been done a thousand times before) and then call themselves “hackers”. I laugh. xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213972",
"author": "DarkFader",
"timestamp": "2010-11-17T19:24:18",
"content": "#1 Be interested and willing to put time into it.#2 Gather as much as existing documentation on the subject and read/understand it.#3 Summarize what you want to know and what’s still unknown.#4 Do you hack magic. Find the right formula by trying things out if you will. Write it down in your spell-book :)#5 Share the knowledge and get credited.(I hope that’s somewhat correct)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213975",
"author": "woutervddn",
"timestamp": "2010-11-17T19:34:37",
"content": "I was hacking when I was 12 years old (I didn’t knew it was hacking, I was just breaking thing apart and trying to make something else with it)then a certain website named hackaday.com pulled metowards everything that was electric, and here I am, I’m a tech junk and I’m willing to seek help…btw my point exactly:http://www.youtube.com/watch?v=k5JSJuN3UWI",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213980",
"author": "Rupin",
"timestamp": "2010-11-17T19:50:31",
"content": "This post is awesome..I wish I had this sort of information available 4 years ago when cypress chips were available as free samples",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213985",
"author": "jeicrash",
"timestamp": "2010-11-17T19:53:09",
"content": "So can the bus pirate be used instead of the Beagle USB 480 Protocol Analyzer? Never did this type of thing before and from all the usb junk I have laying around this would be a neat new hobby to pick up.P.S. To those who constantly feel HaD is a waste of time / lame. Why not just find another site or refrain from posting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213992",
"author": "anon",
"timestamp": "2010-11-17T20:13:34",
"content": "@jeicrashproblem with trolls is if you feed them they come back. note the infestation of arduino trolls on this site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213996",
"author": "PhilKll",
"timestamp": "2010-11-17T20:24:03",
"content": "@jeicrashNo USB is very different from what the protocols the buspirate does. Its way more complex in how it sends data, unfortunately, cause the USB sniffers are really expensive.Also there is a windows program that shows the USB info. Usbview.exe it comes in the source code examples of the WinDDK, its a huge download, not really practical for just that, but if you got a reason or have it already, its in there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213997",
"author": "Eirinn",
"timestamp": "2010-11-17T20:24:35",
"content": "You don’t magically have the skills to make heads or tails of reversed engineered data plain and simple. And you wont get it either magically just by keep trying.@anon they’re everywhere, not just here; jake is just the local town crier.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214006",
"author": "Truth",
"timestamp": "2010-11-17T21:04:59",
"content": "I can only see further than anyone else because I’m standing on the shoulders of giants.Everybody uses something developed by someone else to aid them in going that little bit further. It all boils down to how long people are willing to bang their head against the wall for that one second of YES! Good tools and methodology reduce the time spent banging your head, which can only be a good thing in the long run.Thanks ladyada, excelent tutorials.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214009",
"author": "mungewell",
"timestamp": "2010-11-17T21:09:37",
"content": "@jericashAs noted the BusPirate does not do USB, but it was extremely useful on a project I did recently where a USB micro was interfaced to a RF24L01 transceiver via SPI.The bus pirate enabled me to see what USB writes caused activity on the SPI bus and to work out what it all meant.You don’t have too have really fancy kit to hack, but sometimes it helps a lot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214025",
"author": "DesperateBob",
"timestamp": "2010-11-17T21:35:35",
"content": "Can someone post drivers for the freaking 360 chatpad now? It can’t possibly be as hard as the kinect, right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214035",
"author": "PhilKll",
"timestamp": "2010-11-17T21:45:31",
"content": "I forgot to mention, if you are hooked up to a PC there are various software solutions out there. I’ve used sniffUSB.exe with good success. Its not as fancy as the pay-to-play varieties, but there is some good information out there about what all the numbers mean, it just takes a bit more work to decipher things.Also I wish there was more information out there like this, I read it last night, was superb work. Thank you, the internet needs more pages like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214041",
"author": "M4CGYV3R",
"timestamp": "2010-11-17T21:59:44",
"content": "“Sadly, it does not exist for windows”Pure haterade. The VID and PID and the same amount of information is available in Windows under the device manager.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214042",
"author": "mungewell",
"timestamp": "2010-11-17T22:00:52",
"content": "@DesparateBobI have RE’ed schematics if you want them… lost interest in it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214044",
"author": "PhilKll",
"timestamp": "2010-11-17T22:05:31",
"content": "You can capture USB traffic with Linux too. This worked for me with Ubuntu 9.10mount -t debugfs / /sys/kernel/debuglsusb to find what bus your device is on, example here is 1sudo cat /sys/kernel/debug/usb/usbmon/1u >my_capture_file",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214113",
"author": "jeicrash",
"timestamp": "2010-11-18T00:25:05",
"content": "Thanks everyone for the helpful tips. This kind of stuff always gets my geek side going. Sadly there is not much on HaD to get my bank account going :PI’ll check into the software stuff, who knows maybe I’ll learn something I can use. Otherwise I’m all for filling up my brain with useless stuff just so I can say I tried to learn it.Anyone up for making a how-to on using low tech / mostly software based items to do something similar?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214121",
"author": "PhilKll",
"timestamp": "2010-11-18T00:46:27",
"content": "I don’t have a tutorial on it, but this is where I started. Using the Linux method or sniffUSB.exe on windows, find yourself a USB storage device, capture some data, then google wiki SCSI Commands, and use this document to figure out what is happening.http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdfYou can then see how the SCSI commands are being sent, and what is being returned.Not exactly all that exciting, but the commands are known, and it should give you a feel for some of the stuff going on. So then at least, if you attempt something not so well known, you got a place to start from.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214150",
"author": "zyxel",
"timestamp": "2010-11-18T01:58:17",
"content": "jake so how should some1 figure out usb without dox.she read other guides then made a simplified shorter version for the public.you do realize that the usb standard was made by thousands of engineers how about reverse it on your own without any knowledge about it you big haxxor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214163",
"author": "Jake",
"timestamp": "2010-11-18T03:15:04",
"content": "@zyxelI normally wouldn’t answer such an illiterate-sounding post, but whatev…You missed my point completely. You don’t “reverse engineer” USB. It is well documented, this is known to all.You clearly don’t even *know* what the term “hacking” means, so I’ll just reiterate my point: To be a “hacker”, you must reverse engineer a complicated system, then modify that system to do something that it was never intended for.There are many different levels of “hacking”. If you make your sonicare toothbrush blink out its battery level in morse code, yeah, you’re a hacker, but then again, that’s a pretty lame hack. If you reverse engineer some complicated device, and make it perform a different function that makes this device infinitely more useful, then you are probably a decent “hacker”.Get it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214164",
"author": "davi jordan",
"timestamp": "2010-11-18T03:23:07",
"content": "Know your hardware as you would know yourself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214191",
"author": "rasz",
"timestamp": "2010-11-18T04:19:05",
"content": "bus pirate no, but you could use USB 2.0 data loggers to grab full speed usb traffic (12MHz), for example saleae. Of course you would need a software that can interpret that data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214260",
"author": "fluidic",
"timestamp": "2010-11-18T07:34:07",
"content": "Well, that was a fun read up to the point where it requires a $1200+ sniffer. It’s going to be a long time before it’s enough of a priority to justify that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214738",
"author": "mike",
"timestamp": "2010-11-18T23:13:58",
"content": "instead of the $1200 analyzer,is it possible to build a cheap version yourself?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215261",
"author": "Jake",
"timestamp": "2010-11-20T04:30:56",
"content": "Advanced analysis requires advanced tools. These tools usually are NOT cheap. In some cases, generic, less-functional equivalents are available for less (like the zeroplus logic analyzer that can be easily modified to function as the much more expensive model) but in most cases, you have to shell out the cash. Fortunately, if this is your passion, you won’t have a problem spending all of your hard earned cash on it :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218451",
"author": "default",
"timestamp": "2010-11-25T14:49:38",
"content": "The same hacker mantra we’ve all heard for the past 20 years.No one asked, “How do I hack?”, but you obviously wish someone would so badly that you felt the need to ask the question yourself, just so you could get your response out there.Worthless article.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2574930",
"author": "Atul",
"timestamp": "2015-05-20T19:06:31",
"content": "If any body wanna be a hacker than one word stick in your mind that “be own”.Hacker have a knowledge about what he do and what type of effect will be.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,331.88717
|
||
https://hackaday.com/2010/11/17/newest-hardware-bounty-the-open-lidar-project/
|
Newest Hardware Bounty, The Open Lidar Project
|
James Munns
|
[
"contests",
"Robots Hacks"
] |
[
"bounty",
"contest",
"lidar",
"Neato",
"robot",
"XV-11"
] |
Inspired by the successful Kinect bounty put out by Adafruit, [gallamine] of the RobotBox community has posted his own
$200
$400 bounty
for the first person who can hack the scanning LIDAR from Neato Robotic’s XV-11 vacuumbot. This sensor would be particularly useful to any robotic makers out there, because even the full retail price of the vacuum is less than the cost of most standalone LIDAR units, which often run upwards of $1000. The bounty seems to be growing every day, starting out at $200, and doubling thanks to a couple of other interested parties.
Luckily, from what we hear, the sensor was never made to be hack-proof (and perhaps even secretly hack friendly?), seeing as one of the prime developers of the sensor is a member of a certain Home Brew Robotics Club. We love it when
companies are nice to hackers
, and we hope to see more examples of this in the future. Not sure what the XV-11 is? Be sure to check out the video after the break for info about the vacuum and its scanning LIDAR.
| 29
| 29
|
[
{
"comment_id": "213867",
"author": "????",
"timestamp": "2010-11-17T15:44:40",
"content": "(From a modders standpoint of the product)I hope a dev can reverse engineer the machine, it looks like a great ‘parts’ machine for the price.(From a consumer standpoint of the product)If reverse engineering doesn’t work and you get stuck with it,I hope the 2d mapping system on this is better than my roomba as my piece of crap can’t even dock properly with the charging base.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213869",
"author": "M4CGYV3R",
"timestamp": "2010-11-17T15:49:52",
"content": "It seems like the people offering up these bounties don’t realize exactly how much effort and time goes into real hacks of the sort they are requesting.I praise Adafruit for figuring this out and upping their Kinect bounty to $2000, but for $400 all I’m going to do is put a funny hat on this thing.For reference, these things are currently selling for $399.00 on Amazon. That means the prize won’t even cover shipping costs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213872",
"author": "st2000",
"timestamp": "2010-11-17T16:01:12",
"content": "Correct me if I am wrong:Did not the 2005 DARPA Grand Challenge…http://en.wikipedia.org/wiki/DARPA_Grand_Challenge#2005_Grand_Challenge…put an end to the advantages of an LIDAR system? I mean that is what everyone else was using, including the VERY IMPRESSIVE “Red Team” from Carnegie Mellon University. Instead the (rather small) Stanford Team won. Again, correct me if I’m wrong, but I think they made a very simple assumption that played out very well. They assumed the road to be colored differently then the land, and, accordingly, plotted their course.I think the problem was that (some?) LIDAR systems rely on spinning mirrors and may also need to be isolated from shock. After taking apart my Roomba, I have real doubts that such a system (spinning mirrors) will survive in the brutal battle ground called “house keeping”**.**(I have my own theories about why military companies make vacuum cleaners. Simply put, if it can clean your house for a year it certainly can survive a military sortie.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213873",
"author": "M4CGYV3R",
"timestamp": "2010-11-17T16:02:11",
"content": "Here is a link to a PDF that explains a lot about the LDS unit and its principles:http://www.binary-apotheosis.com/had/RevoLDS_Whitepaper.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213874",
"author": "Bob",
"timestamp": "2010-11-17T16:03:06",
"content": "macgyver I think you misunderstand what a bounty is. It is not meant to cover your time/costs, it is merely a supplimental rewards to the main one which is that you have the result of the hack for your own use. If you like it is mainly encouragement to share not to do the hack in the first place.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213878",
"author": "st2000",
"timestamp": "2010-11-17T16:10:31",
"content": "@M4CGYV3R:I agree, it is a small bounty. But if I paid someone to keep my mythtv boxes running, I could justify buying about a dozen TIVOs.BTW, I also looked at the Adafruit bounty and thought it would be a tight squeeze to come in at budget. I’d put it at 50/50. And then I know I wouldn’t have finished before [Hector].(BTW, can someone explain why we put a “@” before people’s names when responding and “[]” around peoples name when embedding them?)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213879",
"author": "FusiveR",
"timestamp": "2010-11-17T16:13:09",
"content": "See this paper to get started:http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4543666These researchers worked together w/ the guys at Neato so this paper is very relevant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213882",
"author": "M4CGYV3R",
"timestamp": "2010-11-17T16:24:19",
"content": "@st2000:1. I don’t understand the TiVO / MythTV analogy.2. The adafruit bounty was nearly 15 times the cost of the device being hacked. Had you won you would make a handsome profit. If you don’t, you’re only out $150 and you have a Kinect.With a $400 robot, that I would never use otherwise, I can’t justify buying one to MAYBE recuperate only the cost and only use it for hacking.Funny enough, the technique being used to measure distance with both the Kinect and this LDR is pretty similar.3. @_____ means you are “talking at someone”. It’s also used in Twitter replies (I believe).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213889",
"author": "st2000",
"timestamp": "2010-11-17T16:47:06",
"content": "@M4CGYV3Rok…1) Mythtv is an open source collage of software that makes a PC work similarly to a TiVo (or ReplayTV). But (I think) it runs rings around TiVo. However, it is a very hands-on effort.http://www.mythtv.org/2) Yes, but the saying goes “your time is money”. And as much as I enjoy participating in these discussions, I realize it is actually costing me real money. (Geez, now you took all the fun out of it.)3) Ah, thanks for the pointers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213893",
"author": "Owen",
"timestamp": "2010-11-17T17:04:29",
"content": "This page has a bit more info on the device:http://www.hizook.com/blog/2009/12/20/ultra-low-cost-laser-rangefinders-actualized-neato-roboticsIt seems to work along similar lines to the Sharp IR Distance sensors that are quite common round these parts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213906",
"author": "Oren Beck",
"timestamp": "2010-11-17T17:44:09",
"content": "Lidar’s value is not as a Better or Worse sensing tech by comparisons per se. The reason/s for using Lidar are a granularity/blending element adding multimodal capability+ it serving as Communication Redundancy.Also- IR Lidar+Kinect etc may expand the sensorium of telematics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213932",
"author": "razorconcepts",
"timestamp": "2010-11-17T18:05:26",
"content": "Anyone have ideas of building your own version of this? Anyone have good sources of easy to interface linear IR CCD arrays like the Sharp IR has?Can you replace the IR led in the sharp IR with a infrared laser?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213986",
"author": "fluidic",
"timestamp": "2010-11-17T19:53:43",
"content": "Why would you think it’s secretly been made hack-friendly? They probably just implemented it in a way that’s friendly to the engineers building it. The fact that this is helpful to anyone else coming along and looking at the interface is completely incidental.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214036",
"author": "Funky Gibbon",
"timestamp": "2010-11-17T21:50:05",
"content": "What is the point of the bounty? to hack this thing or to create a LIDAR@razorconcepts, just about everyone will have a CCD hanging around in a gameboy camera, not linear no, but it does have built in edge detection and is simple to use",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214067",
"author": "zool",
"timestamp": "2010-11-17T23:12:47",
"content": "hey it’s nibbler from ctfxc",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214077",
"author": "matt",
"timestamp": "2010-11-17T23:36:01",
"content": "why pay a bounty to hack one that’s already made, when someone with the skill could most likely just make one from a couple of old cd-walkmans (possibly?), glue logic and power supply? even if thats the wrong kind of laser, 2 of the right kind couldn’t be that expensive?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214081",
"author": "Wartex",
"timestamp": "2010-11-17T23:46:55",
"content": "What the F are you talking about, $1000 for a LIDAR. Buy any $150 laser rangemeter such as Bosch DLR165 or Leica or Hilti and tap into the PIC or serial bus on it. Stick that shit on a stepper motor and boom, a 2d scanner with 2 mm accuracy over 160 feet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214100",
"author": "MRE",
"timestamp": "2010-11-18T00:13:04",
"content": "@razorconcepts check any flatbed scanner in your local landfill for linear ccd and controllers.Usually they are short onpin count. Like 30 or so.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214105",
"author": "goeff",
"timestamp": "2010-11-18T00:19:27",
"content": "@ Wartex:Exactly!For all intent and purposes, the rangefinder/servo combo is a great option for the price. Done it 6 yrs ago and it worked fine.Sadly, I never felt it would “expand the sensorium of telematics.” in my case. :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214169",
"author": "William",
"timestamp": "2010-11-18T03:52:45",
"content": "Somehow I missed this discussion till now.The bounty has been raised to $800, with RobotShop offering to refund you the cost of the robot if you buy one.Someone on the SocietyofRobots forum indicated that Neato will make “replacement parts” available soon, which will most likely include the lidar and a lower cost:http://www.societyofrobots.com/robotforum/index.php?topic=12612.0@Wartex, if you want to document your work and post it to the bounty page, that’d be most welcome! But, I think you’re missing the point of a 1) rugged 2) small 3) low power, portable 4) packaged sensor.Neato has publically stated that the unit is easy to hack:http://cmusv.na6.acrobat.com/p69585299/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214190",
"author": "Chris",
"timestamp": "2010-11-18T04:13:36",
"content": "@goeff: How high a sample rate were you able to get with a hacked rangefinder?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214272",
"author": "fluidic",
"timestamp": "2010-11-18T08:39:44",
"content": "@chrisA MEMS scanning mirror would let you get pretty high, and you wouldn’t be wiggling as much mass around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214346",
"author": "JackTheVendicator",
"timestamp": "2010-11-18T13:23:04",
"content": "http://www.robotshop.com/blog/images/Neato-270.jpgThe pads are even labeled… it’s a LVTTL serial port. No idea on data format, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214824",
"author": "Silas",
"timestamp": "2010-11-19T03:44:14",
"content": "@MRE I just took part 2 scanners for my CNC. Might as well try and hack the linear ccd and controller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216142",
"author": "Andrew O'Brien",
"timestamp": "2010-11-21T23:00:51",
"content": "@st2000If anything the DARPA grand challenge demonstrated that the best method of identifying drivable road relied heavily on Lidars. Every team used them to identify curbs, etc, while the most successful teams also used them to identify road paint using some lidar’s ability to deliver both reflectance and range data rather than just range.The teams that relied on cameras to identify road paint, principally MIT, suffered from computer vision’s most common failing – changing scene illumination (mainly tree shadows falling on the road). Lidars are immune to this as they illuminate the scene themselves with their lasers.All scanning lidars direct the laser using a rotating mirror but AFAIK they are relatively immune to vibration – instead they are sensitive to direct sunlight. The SICK lidars most teams used are engineered for industrial environments.A cheap lidar would be great for the home-built robotics community. While some ~$2500 lidars have recently come out from Hokuyo, the 2D SICK lidars used by the DARPA competitors cost ~$5000 each and the 3D lidar each team used from Velodyne costs ~$70k.Most teams invested almost $100k just in lidar sensors – a number perhaps matched only by that invested in their inertial-aided GPS system. The two in combination were the primary means all of the most successful robots used to perceive their world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216559",
"author": "Awesomenesser",
"timestamp": "2010-11-22T19:20:08",
"content": "Sparkfun bought a robot and figured out its a 3.3V serial line running at 115200 baud. They haven’t completed the challenge but did a few experiments and provided all of the logic analyzer test files. This way people without the robot can help out too. Take a look below:http://www.sparkfun.com/news/490",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216824",
"author": "William",
"timestamp": "2010-11-23T04:13:23",
"content": "Xevel, on the Trosssen Robotics forum has made some good progress:http://forums.trossenrobotics.com/showthread.php?t=4470&page=3Also, the CEO of RoboDynamics is offering $200 to the first person using this sensor for SLAM:http://robotbox.net/blog/gallamine/open-lidar-project-hack-neato-xv-11-lidar-200-bounty",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217795",
"author": "Xevel",
"timestamp": "2010-11-24T17:50:47",
"content": "https://github.com/Xevel/NXV11/wikiSome info + some code.Enjoy ^^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "639014",
"author": "Jacek",
"timestamp": "2012-04-27T04:02:07",
"content": "How much of bounty will be sufficient to convert this sensor to a Doppler LIDAR for scanning rising air? Scanning distance lets say 0.5 mile around. Scanning data send over BlueTooth to Android or iPhone app showing surrounding area using colors for vertical air velocity?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,332.011564
|
||
https://hackaday.com/2010/11/19/projector-introduces-augmented-reality-to-reality/
|
Projector Introduces Augmented Reality To Reality
|
Mike Szczys
|
[
"Multitouch Hacks"
] |
[
"augmented reality",
"infrared",
"ir",
"whiteboard"
] |
[Raj Sodhi] and [Brett Jones] have been working on interactive augmented reality as part of their research at the University of Illinois. What they have come up with is
a stylus-based input system that can use physical objects to create a virtual landscape
. Above you can see that an environment was built using white blocks. A camera maps a virtual world that matches the physical design. From there an infrared stylus can be used to manipulate virtual data which is projected on the blocks.
What they’ve created is a very advanced
IR Whiteboard
. There are buttons on the stylus, one of which opens the menu, made up of circles that you can see above. From there, you can select a tool and make it do your bidding. After the break there’s a video demonstration where a game is set up, using the menu to place tanks and mines on the 3D playing field. We wonder how hard it would be to do this using a projector and
a Kinect
.
[vimeo=http://vimeo.com/12154930]
| 8
| 7
|
[
{
"comment_id": "215060",
"author": "TODD",
"timestamp": "2010-11-19T18:06:30",
"content": "This would be awesome for D&D!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215064",
"author": "fartface",
"timestamp": "2010-11-19T18:30:35",
"content": "Someone needs a better system to do this than the Crappy WiiMote way. WiiMotes are a PITA to setup completely every single time you want to do this, they will not stay connected to the pc.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "555435",
"author": "Jordan",
"timestamp": "2012-01-10T21:22:55",
"content": "what software do you use? I usually don’t have problems.",
"parent_id": "215064",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "215067",
"author": "zool",
"timestamp": "2010-11-19T18:42:51",
"content": "it was kinda cool but i think they could expand on the augmented reality partlike being able to track a real object and have a virtual one follow itwith this system you wouldn’t need those lame symbols for the augmented realityan easy thing to do would be something like a breakout game with a real ball and virtual blocks to break, or maybe even a pinball game that changes the playfield acording to what you’ve hit",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215069",
"author": "Filespace",
"timestamp": "2010-11-19T18:44:40",
"content": "this isnt anything special. looks just like a version of the laser graffiti hacks just projecting onto the input surface with a fancy gui",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215071",
"author": "HometownHacker",
"timestamp": "2010-11-19T18:49:06",
"content": "Very cool. +1 to Todd for the D&D idea. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216719",
"author": "t&p",
"timestamp": "2010-11-23T00:17:02",
"content": "I like the idea that the multipurpose the projector for the point cloud modeling",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217128",
"author": "Michael L.",
"timestamp": "2010-11-23T14:32:49",
"content": "The D&D comment reminds me of a tabletop display I saw a while back, it used markers to represent players and they had a game setup with a fixed move radius, traps, pitfalls, etc. It was very D&D feeling, maybe 3.5 rules by some stuff I saw. Anyway back on topic this would be nice if it didn’t need to scan each surface before use, or had a database of scanned surfaces that you could pull up and use. Honestly a wall isn’t going to change that much from place to place under normal circumstances. It’s a neat idea but the gravity-defying physics they use seems too video-gamey. Great for certain situations (gravity distortion anybody?) but not all. An option to “stick to the surface” or “bounce of objects” would be killer.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,333.745351
|
||
https://hackaday.com/2010/11/18/hack-a-day-classifieds/
|
Hack A Day Classifieds
|
Caleb Kraft
|
[
"News"
] |
[
"buy",
"classifieds",
"sell"
] |
Announcing
Hack a Day Classifieds
! Buy, sell, trade your tools and junk with other Hack a Day readers.
Quite often, we get emails or comments with people asking “do you want this piece of junk?” or “Would you sell that thing?”. We usually just push them off on craigslist, but we realize that it can be hard to find our specific flavor of stuff in craigslist. Who posts a half smashed tube radio on there?
Our answer is to give you guys the Hack a Day Classifieds. We know it isn’t perfect, but we wanted to supply this service to hackers. Feel free to post what you’ve got. Think of it like a little mini craigslist, just for us. It should be fully functional and ready to go, but who knows what issues we’ll see when you all start going there. Please be patient and understanding with us.
| 42
| 41
|
[
{
"comment_id": "214710",
"author": "Girrrrrrr2",
"timestamp": "2010-11-18T22:27:32",
"content": "Awesome! cant wait to browse, now… I just need something to put up there.Anyone want a Slightly used size 10 washer?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214715",
"author": "Chris Muncy",
"timestamp": "2010-11-18T22:35:49",
"content": "Great idea, wrong implementation.I believe the Hack-A-Day community would benefit much more from a user forum that would have a classified section as well as several other sections that would help further the cause of the great projects that we see here (except those reposts of Instructables.com projects #FAIL)JMHO",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "214718",
"author": "Caleb Kraft",
"timestamp": "2010-11-18T22:39:20",
"content": "@Chris Muncy,We’re actually working on multiple ways of improving the site. A forum is in that list.-caleb",
"parent_id": "214715",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "214716",
"author": "Erik Johnson",
"timestamp": "2010-11-18T22:36:32",
"content": "@Girrrrrrr2 I’ll barter you a scuffed, slightly corroded 1997 US penny.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214719",
"author": "xeracy",
"timestamp": "2010-11-18T22:39:46",
"content": "Finally! Been needing a place like this!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214720",
"author": "alan turing's dog",
"timestamp": "2010-11-18T22:40:10",
"content": "I agree with Muncy – forum works better.Having said that, I’m not really sure HAD could keep control of the inevitable spam problems.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214726",
"author": "haku",
"timestamp": "2010-11-18T22:54:10",
"content": "Would be useful to add a ‘location’ field. Being able to search for stuff within a certain area would also be awesome.Useful for estimating postage, knowing if something is close-enough to pick up, etc.And how about ‘quantities’? For example, if some has several of something, is selling parts from their CNC, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214729",
"author": "Chris Muncy",
"timestamp": "2010-11-18T22:54:49",
"content": "@CalebThanks Caleb that’s great news. Maybe you could get rid of HaD Q&A and move it to a forum as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214731",
"author": "Kemp",
"timestamp": "2010-11-18T22:58:17",
"content": "Seconding the location field. Maybe add it to the user profile as a field and pick it up automatically in the listing from there (so the user doesn’t have to type it in every time).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214732",
"author": "Filespace",
"timestamp": "2010-11-18T22:58:46",
"content": "would love to see a link on the classified site at the top that links back to hackaday.com for ease of use… and we need a woot style light for new posts on had",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214734",
"author": "1000100 1000001 1010110 1000101",
"timestamp": "2010-11-18T23:03:35",
"content": "Thanks, HaD! I’m excited to see where this goes!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214737",
"author": "CH",
"timestamp": "2010-11-18T23:09:43",
"content": "I’m already listing this (http://cgi.ebay.co.uk/230550084404) on Ebay, but if it doesn’t sell, I put it up here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214757",
"author": "AdoZ",
"timestamp": "2010-11-19T00:12:54",
"content": "I may finally find a home for the old HP HP8407A/8412A RF/Microwave Network Analyzer I’ve been tripping over for years.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214759",
"author": "Girrrrrrr2",
"timestamp": "2010-11-19T00:15:01",
"content": "@Erik Johnson ITS A DEAL!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214777",
"author": "Zoidman",
"timestamp": "2010-11-19T01:12:13",
"content": "I have that exact oscilloscopes in the picture! lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214779",
"author": "Zoidman",
"timestamp": "2010-11-19T01:16:33",
"content": "Ohh and just a side thought… what about having a free section? Things that perhaps someone has no use for, but someone else would like? You know, “One man’s junk is another’s treasure” sort of deal. Plus! Donating stuff is always great for that warm fuzzy feeling they get for doing something good!? :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214785",
"author": "DrAbortion",
"timestamp": "2010-11-19T01:40:33",
"content": "ABOUT TIME! The only addition needed in the classifieds section is possibly a request board for parts or finished projects. Then it would be perfect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214787",
"author": "adam",
"timestamp": "2010-11-19T01:49:37",
"content": "this is awesome. I’ve been needing to get rid of some junk, and its not like i can take a bunch of bare circuit boards to a pawn shop. (maybe Pawn Stars or American Pickers lol).haku gave me an idea, you could also add a field for “Services” where people could offer the use of their CNC/Laser cutter/Makerbot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214794",
"author": "Ricardo",
"timestamp": "2010-11-19T02:27:15",
"content": "Hey guys,Even tough I live in Brazil, I just loved the idea.If there is a way, I will maybe buy something :)Nice initiative.See ya.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214799",
"author": "mahoney",
"timestamp": "2010-11-19T02:34:16",
"content": "I am excited by this. Immensely! Looking forward to what this could do for hacking as a community at large!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214806",
"author": "Azguard22",
"timestamp": "2010-11-19T02:55:42",
"content": "This is a great idea!!! now let’s hope the community really get behind this",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214816",
"author": "Michael",
"timestamp": "2010-11-19T03:15:51",
"content": "Coooooool. Way coool. Now to look at the big box o’ stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214817",
"author": "Paul",
"timestamp": "2010-11-19T03:19:40",
"content": "Hackaday classifieds is a awesome idea… looking forward to it : ) Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214825",
"author": "Daniel Reetz",
"timestamp": "2010-11-19T03:45:57",
"content": "This is brilliant. I have actually thought about suggesting this to you many times.If this had existed when I left Fargo, I’d have had a truckload of stuff to list.Cheers! Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214826",
"author": "Vic",
"timestamp": "2010-11-19T03:47:50",
"content": "Nice! I definitely have some stuff lying around that I wouldn’t mind trading for hard currency. Hmm… I ordered a lot of 10 Russian VFD tubes (you know, like the one in the Adafruit ice-tube clock). I’m only really ever gonna use two or three, and this sounds like a great place to find loving homes for the rest of them :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214829",
"author": "Haku",
"timestamp": "2010-11-19T04:01:38",
"content": "Hey, who’s posting as me?Location should be a must, we’re not all in the US :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214848",
"author": "Yeah",
"timestamp": "2010-11-19T05:31:02",
"content": "I like this idea, and can see it being pretty cool. Right now tho there’s only a few things up there, but over time this could be pretty cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214957",
"author": "Daid",
"timestamp": "2010-11-19T10:36:43",
"content": "Pretty useless with a location field and filter, as Haku pointed out. We are not all in the US. And oversea shipping is expensive for sensitive equipment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214972",
"author": "jim",
"timestamp": "2010-11-19T11:53:33",
"content": "oh believe me, a shekel of odd wires and LEDs isn’t sensitive to anything other than concerned TSA agents",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214977",
"author": "Phil",
"timestamp": "2010-11-19T12:06:44",
"content": "Fourthed (fivthed?) on the location, there’s a lot of us from the UK.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214986",
"author": "Bill D. Williams",
"timestamp": "2010-11-19T13:01:13",
"content": "I’d like to sell an arduino.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215003",
"author": "Rik",
"timestamp": "2010-11-19T14:13:11",
"content": "The concept of classifieds is great and has potential to go big but you have to work on the layout. To hard to read for a visual person. I think many hackers are explorers not readers. Use ebay as a template since people are familiar with the format.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215024",
"author": "leadacid",
"timestamp": "2010-11-19T15:34:16",
"content": "Definitely agree with the ideas above: Location field (or just more in general), Services section, and some kind of split or indicator for Free/Trade/Sale items.What I’ll personally do is actually list the cost to ship things, so I’ll be putting a lot of things up in the USPS flat rate box. That way weight isn’t an issue and people know what they’re getting themselves into for price.Now, to list a ton of stuff!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215028",
"author": "buzzkill",
"timestamp": "2010-11-19T15:41:24",
"content": "The format is horrible for browsing what is available. And why is there no link on the site to get back to here?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215048",
"author": "asheets",
"timestamp": "2010-11-19T16:59:50",
"content": "@leadacid — ditto on that services section. I have a project I need built that is just beyond my skill level to do well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215051",
"author": "Everett",
"timestamp": "2010-11-19T17:20:15",
"content": "I had been working on a site to do this, and one more thing. Assume I have a list of items sitting around the house I’d just love to turn in to something, anything… Why not build something like a recipe database where I can put in a list of “ingredients”, and see what I am closest to being able to build. This would be even more powerful if it could draw from the database you are creating to help “flesh out” what I’m missing. If you include an API someone could eventually write software that takes ingredients and tries to build stuff out of them. The community could then rate the items that are “built.” The software could then learn what is an effective hack and what isn’t. There are lots of ideas here, and I’d love to work with people on any of them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215055",
"author": "kobilica",
"timestamp": "2010-11-19T17:44:10",
"content": "fucking sweet!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215077",
"author": "Stu",
"timestamp": "2010-11-19T19:17:45",
"content": "Good idea, nice work, however the ads on it right now seem a little, well, commercial. Has spamming already begun?Furthermore, you need a small space between each advert, they’re all a bit too bunched up looking. I’m guessing its a straightforward HTML table list pulled from a DB. So just add a between ads!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215078",
"author": "Stu",
"timestamp": "2010-11-19T19:19:11",
"content": "heh heh the comments system ripped out my tags –angle bracket TR close angle bracket angle bracket P close angle bracket angle bracket close TR close angle bracket!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215096",
"author": "Mike",
"timestamp": "2010-11-19T20:39:44",
"content": "Rest assured, I will begin immediately posting my junk for all to see and discuss.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215166",
"author": "Chzfish",
"timestamp": "2010-11-20T00:53:19",
"content": "Great idea guys! ive been following the site for years and love this idea, i just put my ad up last night and already have a ton of interest!thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215422",
"author": "GeekMan",
"timestamp": "2010-11-20T14:14:24",
"content": "Great idea im looking forward to finding something useful HAD does it again",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.009979
|
||
https://hackaday.com/2010/11/18/five-free-evalbots/
|
Five Free Evalbots
|
Joseph Thibodeau
|
[
"contests",
"Hackerspaces",
"Robots Hacks"
] |
[
"evalbot",
"giveaway",
"hackerspace",
"stellaris",
"thanksgiving"
] |
If you’re a member of a hackerspace and you’ve been hoping and wishing for an evalbot to tear apart with your bare hands, you’re in luck! [Dave Bullock] is
giving out five evalbots
to five lucky hackers chosen at random. We thought that the
$125.00 deal
we saw the other day was good but this is right outta town!
The draw is on Black Friday, so you’ve got a few days to submit your details. We’ve only had a few posts about the evalbot to-date covering the
initial examination of the hardware
and a
USB power modification
. We’re interested in seeing where people take this, and we’d love to follow how each of these free ‘bots turns out. For those already working on an evalbot, keep it up and take lots of pictures!
[Photo credit:
Dave Bullock
from
eecue
]
| 12
| 12
|
[
{
"comment_id": "214679",
"author": "polossatik",
"timestamp": "2010-11-18T21:16:22",
"content": "Nice, aldo it’s US only (micht want to stress that) , i’ll want to see what the hackerspaces come up with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214680",
"author": "mowcius",
"timestamp": "2010-11-18T21:16:42",
"content": "US only… grrrzzzz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214681",
"author": "Dave Bullock",
"timestamp": "2010-11-18T21:23:04",
"content": "If you’re willing to pay for shipping, I’ll ship worldwide.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214682",
"author": "Japala",
"timestamp": "2010-11-18T21:24:42",
"content": "Still haven’t got the one that I ordered :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214688",
"author": "therian",
"timestamp": "2010-11-18T21:34:45",
"content": "I thought non US extincted after WW2",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214692",
"author": "Necromant",
"timestamp": "2010-11-18T21:44:27",
"content": "I’m still waiting for mine from ti",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214699",
"author": "Dave Bullock",
"timestamp": "2010-11-18T21:58:30",
"content": "I have the 5 evalbots sitting at my place, so no worries about waiting for backorders. =]",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214750",
"author": "Gene",
"timestamp": "2010-11-18T23:51:53",
"content": "Every time I see “evalbot” I read “evilbot” and get all excited, only to realize the mistake and get disappointed. Evalbots are cool and all, but just doesn’t have the cache of evilbots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214778",
"author": "Eric",
"timestamp": "2010-11-19T01:13:02",
"content": "Just called TI. I ordered one when they were $25 and still haven’t got it. Turns out they’re backordered ’til late december.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214909",
"author": "DanAdamKOF",
"timestamp": "2010-11-19T08:48:57",
"content": "I get their intent but I wish it wasn’t hackerspace-only, I and a few other geeks here at UT Dallas could probably think of some cool things to do, for good and not for “eval” ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215189",
"author": "Tom Brusehaver",
"timestamp": "2010-11-20T01:52:16",
"content": "Does someone have a good tutorial on how to program one of these things.I got one, and tried the IVR stuff, but I was hoping for a longer term solution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215256",
"author": "Spork",
"timestamp": "2010-11-20T04:22:23",
"content": "I spoke with my TI Rep today, she said they’ll be shipping some of the backordered eval bots in December.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,333.701955
|
||
https://hackaday.com/2010/11/18/build-your-own-soic-progamming-clip/
|
Build Your Own SOIC Progamming Clip
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"clip",
"pci",
"programming",
"socket"
] |
[Pyra] was looking for a way to reprogram some ATtiny13 microcontrollers in a SOIC package. He’s re-engineering some consumer electronics so adding an ISP header to the design isn’t an option. He had been soldering wires to the legs of every chip but this is quite tedious. What he needs is an adapter that can make physical contact with the legs just long enough to program new firmware. After looking around he discovered that
a PCI socket can be used as a progamming clip
(
translated
). It shares the same pitch as a standard SOIC package but is not wide enough for the chip. He cut out 4 rows of the socket and the section of motherboard it was soldered to. Then he made a cut down the middle of the plastic and bent the two sections apart. The image above illustrates this, but not shown are the eight wires that he later added to connect to the device.
We wonder if this can be adapted to program SOIC parts without removing them from a circuit board. That would be a handy tool for finishing up
the LED lightbulb hack
.
| 22
| 21
|
[
{
"comment_id": "214558",
"author": "tim",
"timestamp": "2010-11-18T19:26:08",
"content": "very well done !thank you for this hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214573",
"author": "Erik Johnson",
"timestamp": "2010-11-18T19:30:34",
"content": "Clever! this will come in handy for quick-release protoboarding my SIOCs instead of buying the DIP counterparts (I like SOIC for the easiest SMT to freehand solder pin-by-pin)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370422",
"author": "Jimmy Fung",
"timestamp": "2021-08-06T22:01:43",
"content": "Please do not focus on traditional spring loaded clip. Think about better design as spring sliding lock. It is much more reliable ashttps://www.ebay.com/itm/255081097759",
"parent_id": "214573",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "214574",
"author": "crust",
"timestamp": "2010-11-18T19:31:25",
"content": "why not just buy an soic clip — in that case they even have the stake pins so that you can just put a wire right on them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214617",
"author": "fartface",
"timestamp": "2010-11-18T19:44:55",
"content": "I prefer buying a ISP clip, clip onto the chip on the board. no desoldering it to program it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214647",
"author": "Spork",
"timestamp": "2010-11-18T20:02:39",
"content": "@Mike SzczysIt wouldn’t work for the LED lightbulb hack, if you recall they tried to program the chip in place, but the support hardware prevents it from being programmed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214648",
"author": "ps1x",
"timestamp": "2010-11-18T20:02:49",
"content": "Look at the best idea to program soic chips without pain:http://forum.easyelectronics.ru/download/file.php?id=366&sid=a448f03ddcac158d0229baf63c0caada",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214658",
"author": "Bill rowe",
"timestamp": "2010-11-18T20:30:39",
"content": "Very nicely done! Do you solder the chips into the circuit after programming? What are they going in to?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214663",
"author": "Erik Johnson",
"timestamp": "2010-11-18T20:50:28",
"content": "@Spork This clip needs the IC pins to reside inside itself. It will not work with a mounted chip, it must be removed/standalone first. (the IC legs snuggle inside the space where the springy contacts go back inside the header)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214695",
"author": "RicoElectrico",
"timestamp": "2010-11-18T21:49:15",
"content": "On the *bottom* of the thread Pyra goes into details of building real in-PCB clip. Yes I know google transl8 sucks cause “wylutowania” means “desoldering”. Then it makes sense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214730",
"author": "nes",
"timestamp": "2010-11-18T22:56:25",
"content": "Neat hack! I have a bag full of programmed tiny13s I need to reset the fuses on. Just the thought of needing to solder each one down meant I never got round to building a HV programmer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214740",
"author": "CH",
"timestamp": "2010-11-18T23:21:01",
"content": "I spent ages trying to do something like this, glueing wires to mini pegs and such. I even tries ‘casting’ chips in polymorph and poking wires into the mould. In the end I came up with an easier method: loop ‘kylar’ wire (wire wrap wire) around the pin, then twist the loop tight. Then I made sure the wire couldn’t move and brush another pin, by covering in hot glue. Now I can attach things to the pins of a soldered chip with small pins :>",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214742",
"author": "Jenna Fox",
"timestamp": "2010-11-18T23:29:55",
"content": "I recently needed to program some ATtiny13s for a Halloween project (animatronic squid hat), and found myself needing a similar solution. I built this little attiny13 socket by forming a lump of sculpty thermosetting plasticine, then pressing the top of the SOIC chip in to it, leaving a negative of the pins and chip shape. I then used a small needle to carve out two little flattened holes through which ribbon cable could be threaded up, and stripped the ends of the cable, running each little wire through the impression’s the ICs legs had left.I hooked this all up to some header pins, and reversed it around, so it essentially adapts an upside down attiny13 soic in to a right-way-up 8 pin dip, perfect for breadboarding, or plugging in to a little metaboard avr programmer shield I built. :)Pics:http://www.flickr.com/photos/jennathepony/sets/72157625420906616/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214751",
"author": "Cybergibbons",
"timestamp": "2010-11-18T23:53:13",
"content": "I’d just go for one of the test clips for SOIC –http://ca.digikey.com/1/4/index5.html– they are only about £10.I’d be interested in seeing what people do with SSOP packages… I’ve got something in the works for probing a few signals easily, but have been using these for a while:http://www.flickr.com/photos/cybergibbons/5174851735/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214904",
"author": "smoker_dave",
"timestamp": "2010-11-19T08:32:41",
"content": "These cost about £10 from Farnell, called Newark in the US.http://uk.farnell.com/jsp/search/browse.jsp?N=500006+1002291&Ntk=gensearch_001&Ntt=soic+clip&Ntx=mode+matchallpartialNot worth the effort when you can buy a professionally made too for so cheap. And yes, these work with in circuit programming without any modification.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215019",
"author": "Matt",
"timestamp": "2010-11-19T15:17:43",
"content": "Cheaper still…http://daughtrey.com/?p=218",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215029",
"author": "Nate",
"timestamp": "2010-11-19T15:44:36",
"content": "THAT ROCKS! Imminent need is the precursor maternal result of investigative genius.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215083",
"author": "Xb0xguru",
"timestamp": "2010-11-19T19:28:18",
"content": "This is great..IF you need to program SOIC in a hurryAND you have more than one to doOR you’re not comfortable with soldering wires to legs (if so, why are you purchasing SOIC’s?)I would imagine this situation would occur very infrequently. If you’re looking to program multiple SOICs, one would hope you’ve planned ahead enough to have a method of programming them!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215160",
"author": "J6B",
"timestamp": "2010-11-20T00:21:32",
"content": "Hi,nice infos.I have some SOT23 components to program (sot with 6 pins)I had a look at an old MB and I found out that AGP port corresponding to SOT size!!J6B.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215187",
"author": "Rachel",
"timestamp": "2010-11-20T01:45:19",
"content": "This is great. I’d love to see a TSOP version though. I’ve been wanting to look at embedded flash chips, but the commercial clips are extremely expensive for some reason.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215593",
"author": "Manekinen",
"timestamp": "2010-11-20T21:58:45",
"content": "Must say that this is brilliant, i’m using this a while, works perfect.http://img29.imageshack.us/img29/140/dsc07498j.jpg(last picture from mentioned thread)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "989997",
"author": "Nat Blundell (@nat_blundell)",
"timestamp": "2013-04-06T14:51:40",
"content": "Inspired by this I came up with a solution for ICs not yet mounted – sort of a temporary DIP to SOIC converter.http://scavengedfun.tumblr.com/post/47277337151/soic-breakout-for-smd-attiny-programming",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.228657
|
||
https://hackaday.com/2010/11/18/well-balanced-flight-simulator/
|
Well-balanced Flight Simulator
|
Mike Szczys
|
[
"home entertainment hacks",
"Wearable Hacks"
] |
[
"cockpit",
"flight simulator",
"virtual reality"
] |
Here’s a flight simulator
which uses concepts simple enough for anyone to build. As you pilot your virtual craft, the cockpit you’re sitting in moves as well. But unlike some of the
more extreme
simulator builds
we’ve seen, this uses basic materials and simple concepts to provide that motion. Its center of gravity is balanced on a base frame. The joystick slides as you move the nose of the craft up and down, shifting the center of gravity causing the cockpit to tilt as well. The pilot sees the simulated flight through a wearable display. There is a stationary reference in front of him which allows the system to measure head movements, panning and tilting the virtual display to match. Check out the overview video after the break, or click through to the page linked above and watch all 22 episodes of the video build log.
[youtube=http://www.youtube.com/watch?v=RrC0_EFnLFE&w=470]
[Thanks Bill and Charper via
DIYdrones
via
Make
]
| 8
| 8
|
[
{
"comment_id": "214479",
"author": "xeracy",
"timestamp": "2010-11-18T18:16:20",
"content": "this is probably the only way I would play a flight simulator",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214510",
"author": "Aero",
"timestamp": "2010-11-18T18:47:18",
"content": "He should have tried to do a mechanical model of the old Link Trainers:http://en.wikipedia.org/wiki/Link_TrainerHe could also mimic roll and yaw with a two-part seat. Tilt the seat pan to simulate roll, and slide the back of the seat left/right to simulate yaw. This is how commercial motion seats (Acme, Rexroth, etc work). A little movement goes a long way and could feasably be done by a direct connection to the seat components and the pedals and stick.1 DOF alone would feel wonky. All you’d experience is pitch acceleration, which would feel weird without g-align compensation. Just because you pull back on the stick doesn’t mean the aircraft pitches up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214667",
"author": "VIPER!",
"timestamp": "2010-11-18T21:04:51",
"content": "WOW THATS GEEKY! And awesome at the same time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214702",
"author": "Eirinn",
"timestamp": "2010-11-18T22:06:16",
"content": "DO A BARREL ROLL!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214708",
"author": "alan turing's dog",
"timestamp": "2010-11-18T22:23:54",
"content": "@Aero“Just because you pull back on the stick doesn’t mean the aircraft pitches up.”Up is relative.Maybe you fly different aircraft than I do. They all pitch up, at least momentarily. He’s just trying to add a little pretend acceleration to his flight sim.This needs more DOF, and should probably be painted in flesh tones, but it’s an interesting start. I knew 3 guys who built a lunar lander simulator (cockpit style) that had nothing but 3 little vector CRTs and all the switches, buttons and knobs they could find for free. It was pretty damn cool, even if it did a terrible job of accurately modeling the physics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214796",
"author": "M4CGYV3R",
"timestamp": "2010-11-19T02:31:08",
"content": "Single-axis motion, controlled by weight-shifting with an awkward pseudo-joystick? No thanks, I’ll pass.This is also old as they come. I’ve seen this one around the webs for a long time. It looks like he just put a shell on it now.Why would you not showcase one of their really cool sim chairs like this one?http://www.rogerdodger.net/motion/others_motion/thanos.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214881",
"author": "Luke Anderson",
"timestamp": "2010-11-19T07:05:49",
"content": "I do not understand why people would like to learn flying unless they have their own private jet or would like become a pilot! Try the latest simulator by Mercedes-Benz and learn how to drive even in difficult situations. Their simulator provides a 360 degree view which gives the test driver a feeling of driving a real car. I was extremely pleased to read about it recently in the CCM-News website. Check out their video inhttp://clients.ccm-news.com/?client=Mercedes-Benz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216303",
"author": "niccohel",
"timestamp": "2010-11-22T05:31:29",
"content": "@Luke Anderson: I do not understand why people would like to learn flying unless they have their own private jet or would like become a pilot!Same reason people play military shooter games without joining the military. Same reason they play racing games without owning 30 different cars.Either they don’t have the ability, time, and money to do it for real, or they want the simulated experience without the risk of dying.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,333.877222
|
||
https://hackaday.com/2010/11/18/global-village-construction-set/
|
Global Village Construction Set
|
Mike Szczys
|
[
"green hacks",
"Tool Hacks"
] |
[
"bricks",
"global village construction set",
"gvcs",
"open source ecology",
"tractor"
] |
The Global Village Construction Set is an open hardware initiative aimed at sharing tool-building knowledge. They believe that to build civilization you need forty basic tools, eight of which they’ve already
prototyped and made available on their wiki
. Included in these is a tractor which reminds us of a beefy bobcat. It has a soil pulverizing attachment which can be used to break down soil and feed it to their soil brick compressor. That machine spits out compressed dirt bricks which are
used as building materials
. They’re stacked on concrete footings and then limewashed to protect the un-baked bricks from water erosion. Does this remind anyone else of real-life
Minecraft
?
Above you can see a group of Open Source Ecology developers showing off bricks in front of the machine that made them, with the tractor/soil pulverizer to the right. Take a look at the videos about the construction set and brickmaking after the break. And learn more by
perusing their weblog
.
If you think an apocalypse is on the way you might want to buddy-up with these folks. They seem to know what they’re doing.
Global Village Construction Set
[vimeo=http://vimeo.com/16106427]
Building with soil
[vimeo=http://vimeo.com/16547692]
[Thanks Chris]
| 56
| 50
|
[
{
"comment_id": "214428",
"author": "PapaMac",
"timestamp": "2010-11-18T17:13:28",
"content": "Ugh, you had to plug that Minecraft shit. Do you realise that there are hundreds of refund requests everyday that are going un-honored because the guy is ‘not sure how to process them right now’?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214442",
"author": "Hackius",
"timestamp": "2010-11-18T17:37:39",
"content": "Hundreds is low compared to the total number of users",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214447",
"author": "gcoetzee",
"timestamp": "2010-11-18T17:42:59",
"content": "So this is essentially a way for rich 1st worlders to play farmer. Cause for the rest of the world that actually needs tools and distillation, these things are way out of their budget. We’re talking about people who budget to buy a chicken. To put that in perspective, you can buy a chicken for less than the price of a soda…I dunno, rather than prep all this “distributed community” crap. Which is highly unfeasible, and they are seriously messing on their economics. (the city is a highly optimized system that’s pretty hard to beat… maybe if we had super low energy cost highspeed transport this would work… aside from the idiot factor of people running unregulated treatment plants and doing all sorts of environmentally terrible stuff in their “sustainable communities”) They should be working on turning the millions of acres of farm land we already have to use into a sustainable model. Not the dumb, no rotation, fertilizer spray death wish our farming is now.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1133203",
"author": "fu",
"timestamp": "2013-12-14T02:04:57",
"content": "you sir have probably never farmed a day in your life. I realize this is old. but your an idiot. farm equipment is expensive and even first worlders as you put it could use this to be effective in their farming. To tell you the truth i hope you starve to death.",
"parent_id": "214447",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "214448",
"author": "spiritplumber",
"timestamp": "2010-11-18T17:43:09",
"content": "Imma be a one man minecraft apocalypse!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214457",
"author": "spiritplumber",
"timestamp": "2010-11-18T17:48:30",
"content": "Hey, now we know what was in the GECK! (Where’s the flashlight?)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214463",
"author": "Kiddi",
"timestamp": "2010-11-18T17:55:01",
"content": "@gcoetzeeYou have a couple of valid points there. But while this may today be rich 1st worlders playing farmer they do have a point with what they do. They are designing farm tools and construction tools in a way that makes them massively cheaper than most of what is available today.While a whole village out in the third world might not have enough resources to buy a tractor today, maybe with the help of efforts such as these, they may afford it a year from now and thus increasing their own quality of life… who knows..Even if its not super effective for these people to do this project does not mean its pointless.Now chill and think a bit before you spew your ill informed opinions on the net like so many anonimous gits before you :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214489",
"author": "CMJ",
"timestamp": "2010-11-18T18:24:15",
"content": "I know this sounds a little far off, but a range of tools with interchangable parts like this could be very usfull for a Mars colony. OK, maybe its more than a little far off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214512",
"author": "Bob",
"timestamp": "2010-11-18T18:47:56",
"content": "This is extremely interesting but their wiki doesn’t have much information and is chaotic to dig through, not to mention riddled with vague catchphrases. This just makes them sound downright elitist “If they still question our accounting practices, they are questioning our integrity, and they cannot be convinced readily to be our friends. They are probably not worth pursuing as supporters because they lack the intelligence required to understand the scope of this work.”.I was hoping for some plans or well written how-tos… anyone find any? I’m lost.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214513",
"author": "Aero",
"timestamp": "2010-11-18T18:49:18",
"content": "Concrete footings huh? Which one of their 48 tools makes concrete?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214514",
"author": "Peter",
"timestamp": "2010-11-18T18:49:45",
"content": "I really like what these people are doing. The best way to make sure you produce the absolute best is to eat your own dogfood, so to speak.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214515",
"author": "Aero",
"timestamp": "2010-11-18T18:50:36",
"content": "*40",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214525",
"author": "Brent",
"timestamp": "2010-11-18T18:59:27",
"content": "“But I also remembered the time it took to build, the number of people needed for efficiency [sic], and how the smell of poo stayed on me for days.” —Scott GalantFunny how the above posters immediately start indulging in the fantasy of pushing their bad ideas on noble savages.The best thing about these guys is that they seem to be content at making toys to allow comfortable hippies to play at Utopia, and are on more of a sales trip than a missionary trip.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214531",
"author": "Bob",
"timestamp": "2010-11-18T19:07:25",
"content": "I’m still trying to figure out what exactly their product is. I get their rough concept but from what I can tell browsing through their site it boils down to asking for donations to pay for their eco commune. I didn’t find any real valuable information. They say open plenty of times, I just want to see some plans for their equipment not rambling and codespeak.*confused",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214533",
"author": "twistedsymphony",
"timestamp": "2010-11-18T19:08:22",
"content": "40 tools? feh… China only needs 1http://www.youtube.com/watch?v=VzpRh-ZE9Mo",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214545",
"author": "Areth Foster-Webster",
"timestamp": "2010-11-18T19:14:06",
"content": "I’ve been following these guys for a while. I wish I could be more excited about what they are doing but their ideas and methods fall apart under real scrutiny.They basically re-invented an over-complex version of the sod hut. Rather than re-inventing the wheel they would be far better off just looking at how 17th-18th century farmers lived and worked. A team of oxen would be more useful, sustainable and less dangerous than that monstrosity of a “tractor” they have cobbled together. If they really want to be oil dependent buy an old Ford 8n tractor. It would be WAY easier to maintain and even build new parts for. I’d like to see them replace the hydraulic system on that “tractor” without going to the store and buying parts made in China. This whole “project” couldn’t exist without the financial and social opportunities available in this country. If it could, peasants in India and China would have figured it out 200 years ago.This sort of thing was done in the 60’s and 70’s the Whole Earth catalog etc. and ultimately failed to thrive. The only meaningful difference I can see here is their move towards home/local fabrication which while not particularly new is becoming cheaper. Even that requires a steady stream of parts, power etc. that a) Cost money. and b) are only available because of massive industrialization. I’d honestly say that the off-grid-living movement is a much better place to look if you want a no-nonsense, pragmatic approach to the “distributed community”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214630",
"author": "Brent",
"timestamp": "2010-11-18T19:52:01",
"content": "True, they’re not selling a product. They’re selling participation in their commune.They also require a study program that includes: “Study of the mind and body to expand one’s consciousness, skills, and abilities, and to disseminate such human augmentation widely towards eliminating mind control of the masses”.Yes, you can snicker now.The other thing, their accounting is based on a lot of things being free that are “only free if your time has no value”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214652",
"author": "Bob",
"timestamp": "2010-11-18T20:12:09",
"content": "@BrentIt seems like whenever I find something interesting when it comes to alternative living/housing… I also find a group of whacky new age cultists behind it. Not to say they are but the quote you posted gives me that feeling.The second thing I usually find is that they aren’t truly sustainable communities and either end up leeching off the local governments or large donations from outside the group. These types of groups love to throw around nonsense words as well.And what is with the abuse of the term open source… which honestly to me they don’t seem to be. It seems more like they are making a promise to be open source sometime in the future, maybe, if they get enough money donated, one day, possibly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214656",
"author": "Shaun",
"timestamp": "2010-11-18T20:22:11",
"content": "Wow…the designs make we wonder if anyone in this commune as ever been to a third world country?I like to make and build as much as the next guy…and I won’t look at the bill until I am done, figuring there is a value in building. But in the end one has to be honest about the process. Claiming that it cost $1000 a year to keep an Allis Chalmers D-17 (50hp and drop dead reliable as any tractor ever made out of cast iron and middle american industrial art)running is such a monstrous mistatement that it makes me wonder about the other numbers provided…rather than build a $5000 tractor couldn’t one just…I don’t know learn to fix a D-17 and keep it out of the landfill?And why does everything around this movement have to look shabby? Is it a crime against earth to have something that looks less steampunk and just a little more refined?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214660",
"author": "fartface",
"timestamp": "2010-11-18T20:41:19",
"content": "Do not agree here.Important tools needed before their tools.1 – Knowledge. Everything else is 100% useless without knowledge. Gather Craploads of books on how to do things like they USED to do. Living off the grid, old books from 100+ years ago. Plus modern books on medical and medicine. Yes you CAN sucessfully and safely treat yourself and others and not be a graduamatated doctor..2 – The Axe and the Saw. a Single steel axe can save a village.These things are FAR,FAR, FAR MORE important than a tractor, combine, skidloader, etc…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214669",
"author": "FLV",
"timestamp": "2010-11-18T21:06:27",
"content": "This is future.Open hardware, open software. Open knowledge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214693",
"author": "Ugly American",
"timestamp": "2010-11-18T21:45:52",
"content": "One of the big things that sets Angelina Jolie’s humanitarian work apart from others is that she organizes the delivery of farm animals, hand tools and trainers. With those, people can be independent.So many other ‘charity’ programs foster dependence you have to wonder if they’re designed that way on purpose.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214725",
"author": "bigbob",
"timestamp": "2010-11-18T22:51:57",
"content": "@ gcoetzeeYou’re an idiot. You clearly know absolutely nothing about farming. You say right now that we use “no rotation, fertilizer spray death” farming methods. This couldn’t be farther from the truth. Do some learning, it might help you out in the long run…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214727",
"author": "originalmouse",
"timestamp": "2010-11-18T22:54:23",
"content": "403 error… i’m forbidden from civilization.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214745",
"author": "anon",
"timestamp": "2010-11-18T23:36:47",
"content": "This is how you create a new city:http://en.wikipedia.org/wiki/Mondragon_Corporation",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214758",
"author": "octel",
"timestamp": "2010-11-19T00:13:21",
"content": "what a bunch of privileged out-of-touch bourgeois douchebags",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214761",
"author": "Brent",
"timestamp": "2010-11-19T00:28:29",
"content": "Oh, they do apparently expect to transform the developing world as soon as they get their induction furnace going or something.I like, almost envy, their enthusiasm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214772",
"author": "Tiago",
"timestamp": "2010-11-19T00:40:47",
"content": "Even that oxy-acetilen torch may be ultra cheap to use in USA but even in Portugal thats super expensive, more than 200€ just to rent the gas cylinders, almost another 200€ to get then refilled and the torch will set you back another 500€ or more, with almost 1000€ you can just buy an old used tractor, old diesel engines are bullet proof and they dont have a lot of prone-to-leak-and-blow hidraulic tubes, damm even the oil for that is expensive as hell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214789",
"author": "lol",
"timestamp": "2010-11-19T02:04:10",
"content": "http://vimeo.com/7424130",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214803",
"author": "zyxel",
"timestamp": "2010-11-19T02:48:46",
"content": "back in the good ol’ days ppl were rather burning down villages lolthese must be some hillbillies and that tractor look like some 4A cannonthey should take a visit to linfen china and try to make something out there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214819",
"author": "Anonymous",
"timestamp": "2010-11-19T03:30:13",
"content": "“Why can’t people in third world countries just go buy angle iron and cement at Home Depot and build their own tractors is it really that hard?”^ The message I got from this ecomentalist rubbish.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214820",
"author": "Drackar",
"timestamp": "2010-11-19T03:31:22",
"content": "These people are crazy. I think most people agree with that. And, at the moment, their website seems to be down completely…hackaday caused unintentional DDoS?On the other hand, the tool concept itself is not bad. Modular, user-fabricated technology with interchangeable parts is a very good idea…for those of us with the capacity and skills to do so.I don’t know if their designs are practical, as I can’t actually LOOK at them, at the moment. But the idea of having a selection of interchangeable parts that can be used to build a wide variety of useful tools? I like that.Figure you need access to..four tools at any given time, to do a job. You have that many power supplies, and the basic frameworks to make them work. Then you have modular tool tips that can go on any of the units.that. If nothing else? is a damn good idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214821",
"author": "blue carbuncle",
"timestamp": "2010-11-19T03:36:16",
"content": "Are they gonna have massive gardens of microgreens? Cause that would serve about as much purpose… Agreed with most above. Pass.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214831",
"author": "haters",
"timestamp": "2010-11-19T04:06:04",
"content": "Everyone is a damn critic.CEB brick presses are useful, and why is the third world below automation?Gadget culture led to the steam engine which gave birth to the industrial revolution.If the damn thing ran off of diesel, everyone would complain about it being short sighted/bio-fuel starvation inducing cruelty.Atleast with a hydraulics system, it’s not nearly as dependent on mass produced parts, and the repairs involve basic engine lathes vs. gear cutting equipment and foundrys.Hydraulic repairs create jobs. Diesel engines employ robots.One or two of you have volunteered in the Peace corps so suddenly you’re experts? Samuel Colt changed the world because he was tinkering with gadgets. He did a lot more for humanity than Mother Theresea ever did.Yes, they need to do more to deserve the “Open” brand.Yes, their personal politics conflict with their professionalism.But of all the commune’s I’ve seen, the Intellectual Property they are producing is just as valuable as a trashbag solar collector. There’s a void between eating dirt and John Deer currently filled with nothing but decrepit used equipment, some of which requires more labor to repair than it’s worth in metal.What if that repair labor(which is skilled labor, which is a vacuum) were replaced by robots which could mass produce tools for communes?Ask “What if” and you contribute to progress. Every dumb idea is a lesson learned for the Samuel Colt in the making.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214839",
"author": "will1384",
"timestamp": "2010-11-19T04:55:02",
"content": "I have been wanting to make tractor, and wasthinking of ether making one, or moddingan old one to do what I needed, just movingdirt and gravel, pulling and hauling, basicstuff-BUT-I had also thought of just using an old car ortruck, and build onto it what I needed – and morethan likely there would be old cars and trucksthat could be converted for farm use in poor countries, might want to look into that",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214910",
"author": "Kragen Javier Sitaker",
"timestamp": "2010-11-19T08:52:38",
"content": "There is criticism above that openfarmtech isn’t actually publishing their plans. I think the problem is just that the site isn’t that well organized (and now is down), so it can be hard to find them. But the “Liberator” compressed earth block press, at least, has what appears to be pretty complete plans online under a legitimate open-source license:http://openpario.mime.oregonstate.edu/documents/94Maybe more overview information will be athttp://openfarmtech.org/wiki/Full_Produce_Release_-_The_Liberatorwhen the site comes back up. I think I’ve also seen plans for other machinery on there when I’ve looked at the site before, but I’m not sure.I’ve been following these guys for a while, but I don’t have any relationship with them. I think some of their statements about farming are overoptimistic. I also think they will ultimately succeed.There are a few big differences now from the 1970s back-to-the-land movement.First, the Green Revolution has already happened, and so agricultural land is dramatically more productive than it was 40 years ago — measured against human necessity, not market prices.Second, those 40 years have also produced a lot of research in biointensive agricultural techniques. Some of this stuff is synergistic with the Green-Revolution mechanized farming stuff. A lot of the people who went back to the land in the 1970s are still back at the land.Third, the internet makes it easy to share knowledge and collaborate on problems with people who are far away. This makes bazaar-style open-source software development possible, and it’s starting to have the same effect on hardware, as hackaday constantly chronicles.Fourth, automated fabrication — computer numerical control — could make it possible to do a lot of machinery design and construction with less labor and less capital investment than was needed back then; and this synergizes with the internet, as you can instantly exchange plans with people far away.Finally, I don’t understand the criticism being leveled at these folks for being rich. Yes, clearly they’re rich. But this isn’t 1750; being rich isn’t proof you’re a ruthless murderer anymore. If they can get the fabrication of their machinery automated enough and efficient enough that they really achieve the 8× cost reduction they’re expecting, or even half of that, it will be a big help to farmers.(I’ve been living in a “third-world” country for the last four years, but I don’t have any special expertise about agricultural questions.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214916",
"author": "Kragen Javier Sitaker",
"timestamp": "2010-11-19T09:06:24",
"content": "Their other design documents are also onhttp://openpario.mime.oregonstate.edu/projects/ose. Click through to a subproject, then click the “Documents” tab. The drill press has a DXF drawing; the induction furnace has a block diagram, schematics, notes, and so on; the soil pulverizer has DXF drawings in detail. They’re doing their work in the open, exposed to criticism and contribution, and the license they say they chose is a real open-source license.No criticism that they aren’t “really open source” holds any water.They do *not* need to do more to deserve the “Open” brand, contrary to the assertion of “haters” above.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215006",
"author": "Bob",
"timestamp": "2010-11-19T14:29:24",
"content": "“They do *not* need to do more to deserve the “Open” brand, contrary to the assertion of “haters” above.”Yes, they do. And only on the internet does being a critic qualify someone as being a “hater”. I searched and searched for those diagrams. I’m glad someone finally shared them because I was unable to find them. It’s like a router I looked at a while ago the manufacturer called it open source but all the documentation was well hidden and could only be found after multiple requests. I don’t think any of us would call that truly open source. Their documentation is most likely unintentionally hidden but hidden nonetheless.My complaint still stands, their site is cryptic, chaotic, propagandist like, and confusing. If they want to be really “open” they need to clean it up. Open also means easily available to the masses.If they can’t take criticism and learn from their weaknesses they won’t stick around for long.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215008",
"author": "blue carbuncle",
"timestamp": "2010-11-19T14:39:14",
"content": "Kragen it would appear you are wrong by majority rule. Nah these are just more enterprising trustifarians jumping on the green market. Similar to people incorrectly tagging photos to get hits, these folks are just generating sentences with green-speak buzzwords in the content. This upward-streaming, anti-globalization source kit contains knowledge garnered from the study of crosscultural intersection of various non-agrarian society cultural capital through a reinvestment in lost karmic revenue intertwined with a healthy, broad spectrum portfolio with diversity linked to a Bull market. um yeah. They should keep up the grant writing though. Gubment likes big words.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215037",
"author": "Brent",
"timestamp": "2010-11-19T16:10:05",
"content": "You guys don’t get it. It is a lot more fun to build a wacky tractor out of I-beam than it is to keep an Allis Chalmers D-17 running.I mean, you have your choice: learning to keep an old tractor running means you’ll be hanging out as a newbie on forums run by old Herberts in non-ironic plaid shirts.Building a wacky tractor and putting up a website with green word salad, on the other hand, gets you profiled in Make Magazine. Hell, if they a bit of ivy-league polish (they really need an upgrade to their bong-hit political philosophy) to their rhetoric, and actually took some of this junk out of the country, they’d be in the running for a McArthur Grant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215040",
"author": "Rob Wentworth",
"timestamp": "2010-11-19T16:31:01",
"content": "Much of the website does not work, giving 404 not found and 500 server errors. When I reported that I got this reply:Rob,It seems we are getting too many page views, which consumes too much CPU cycles. This prompted our web hosting provider to kill the wiki and blog.I’m trying to fix this soon.Thanks for your patience,Elifarley",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215081",
"author": "Fred Hayek",
"timestamp": "2010-11-19T19:26:01",
"content": "Only way out of poverty: economic growth via division of labor. Trying to do everything on your own just keeps the poor poor. This group of modern monks will make little, if any, real progress.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215144",
"author": "Cyberteque",
"timestamp": "2010-11-19T23:46:46",
"content": "These guys are wacky!Whatch the video of the mud brick press in action, they talk about needing “at least 8 people to run it”.But they’re using a bucket to fill the damn thing!I would have thought they could have put all those skills to use and made an “open source shovel”!Their hearts are in the right place, but they don’t have a clue what they are doing!Kinda funny, kinda sad, but still inspiring, now if I could just some friends together and buy some land, tools, building materials…….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215194",
"author": "s",
"timestamp": "2010-11-20T02:03:28",
"content": "Ah the naysayers. How about thinking on a greater scale than electronic components and consider what it takes to hack society. The because something is currently done a certain way does not make it optimal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215272",
"author": "Wolvenmoon",
"timestamp": "2010-11-20T05:10:58",
"content": "I keep hearing people go “What a bunch of first world/bourgeious/priveleged…they wouldn’t be able to do that without outside societal…”Your ranting is being transmitted over the epitome of human technology and cooperation. Go bother your local baker, who might fling a muffin at you.They’re playing with mud and thinking about the ramifications of playing with mud. MEANWHILE, AT THE LEGION OF DOO- I mean.. ON THE INTERNET…you’re griping about them playing with mud.The level of irony is deadly. I suggest not considering this further.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215296",
"author": "Kragen Javier Sitaker",
"timestamp": "2010-11-20T06:44:17",
"content": "Bob said, “And only on the internet does being a critic qualify someone as being a “hater”.”Bob, when I said “haters”, with quotes, I was referring to the person earlier in the comment thread who signed their post using that word as their name. Sorry that wasn’t clear.“It’s like a router I looked at a while ago the manufacturer called it open source but all the documentation was well hidden and could only be found after multiple requests. I don’t think any of us would call that truly open source. … Open also means easily available to the masses.”Bob, it sounds like you need to read the Open Source Definition, which was written by the people who invented the marketing term “open source” to clarify what they meant by it. There’s plenty of open-source software that doesn’t even *have* documentation; just look on GitHub.Blue carbuncle said, “Kragen it would appear you are wrong by majority rule.” The epistemology implied by that statement is highly suspect. The truth doesn’t work by majority rule. I might be wrong, but counting votes won’t tell you whether I am or not.Brent says, “learning to keep an old tractor running means you’ll be hanging out as a newbie on forums run by old Herberts in non-ironic plaid shirts.” If you watch their interview with the steam car guy, you’ll see they are committed to hanging out as a newbie on forums run by old Herberts in non-ironic plaid shirts, just different ones.Fred Hayek says, “Only way out of poverty: economic growth via division of labor.” Fred, economics has advanced a bit in the last 234 years; you might want to brush up a bit. Other contributing factors to economic growth are now widely acknowledged by economists. One of them is knowhow. (Actually, if you make it past the first chapter of Wealth of Nations, you’ll find some other factors that were already understood to be important 234 years ago.) Also, I don’t know if you have much experience with actual poverty, but it seems to coexist quite comfortably with economic growth.Cyberteque says, “I would have thought they could have put all those skills to use and made an “open source shovel”!” That’s an excellent idea. They call it the “soil pulverizer”, it attaches to the front of their tractor, and as I mentioned above, you can download the engineering drawings for it from their web site. Their latest video shows it in action.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215362",
"author": "cron",
"timestamp": "2010-11-20T10:09:04",
"content": "Browsing the site, i saw “tools” in blue in one of the pararaphs. i clicked it, and was promptly taken to a list of their tools with links to the designs and full plans.Sorry the site doesnt have a Google custom search for all you noobs who are too lazy to use ur EYEBALLS. lolWhos gonna profit the most from this info??SMALL FARMERS trying to get back on their feet.maybe a natural disaster washed their tractor off a cliff?“i kno! i can build one for pretty cheap with most of my parts from Northern Tool or my local hydraulic shop and my neighbor who has a welder.”and yea to all u guys sitting on a computer, dont hate on ppl playing in the mud. let them do what they want. its not like they r waking u up at 6am like most farmers would.you can always navigate away from a page kids. just walk away.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215493",
"author": "Paethon",
"timestamp": "2010-11-20T18:09:12",
"content": "It’s actually 40 machines, not 40 tools. So they are engineering machines. Why is that so bad? Looks fun and they seem to know what they are doing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216574",
"author": "Bob",
"timestamp": "2010-11-22T19:38:05",
"content": "@Kragen Javier Sitaker… If the documentation/code is not available for something it simply isn’t open source. For software that is code for a device like they are producing it is documentation. Sorry if that point was poorly communicated. They do have stuff available, unfortunately when I was looking none of the links worked and most of their site was down so it did not appear that they had documentation of any kind. They still need to clean the site up. Information that is hard to find restricts communication.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217357",
"author": "Kragen Javier Sitaker",
"timestamp": "2010-11-23T23:18:16",
"content": "@Bob: I concur.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217365",
"author": "JackD",
"timestamp": "2010-11-23T23:56:55",
"content": "So for everyone complaining that these are a bunch of rich yuppies trying to develop modern and sustainable farming methods: What would you have them do? Move to the suburbs, get a prius and some fair-trade coffee and pretend that they are actually doing anything of value by passively consuming “green” whatever? Frankly, even if they are “rich yuppies” I’d much rather have them contribute their efforts to things like this. I’ve been following this project for some time, and they publish results and plans, if the documentation is lacking it’s because they are busy building things. For that matter, poor documentation is common in open-source endeavors, and while that is a matter for improvement, I hardly think they should be singled out. As far as costs go, how many of you have priced out a combine lately? Do that before you criticize the expenses of these projects.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,333.834659
|
||
https://hackaday.com/2010/11/18/electromechanical-computer-built-from-relays/
|
Electromechanical Computer Built From Relays
|
Mike Szczys
|
[
"classic hacks"
] |
[
"computer",
"cpu",
"relay",
"wire wrap"
] |
This is Zusie,
a computer built out of electromechanical relays
. [Fredrik Andersson] picked up a lot of about 100 telephone exchange circuit boards, each with about 16 relays on them. After getting to know a heat gun really well he ended up with 1500 working relays with which to play. The machine runs slowly, it iss noisy, but it definitely works. After the break you can see it running and assembly code program that he wrote.
The instruction set is based on boards running microcode. These store the operational commands for each instruction the processor has available to it and they run in parallel with the rest of the operations.
We’re always surprised to see that these home-built processors work. Mostly because of the complexity involved in assembling them. How hard is it to find a shorting connection or a malfunctioning relay? Those problems aren’t limited to this application either, what do you do if
a transistor-logic CPU
has a malfunctioning chip?
[youtube=http://www.youtube.com/watch?v=FLnUukOJyZE&w=470]
[Thanks Daniel]
| 41
| 40
|
[
{
"comment_id": "214408",
"author": "Iddeen",
"timestamp": "2010-11-18T16:31:20",
"content": "Wonder how do they run the program",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214409",
"author": "J. Peterson",
"timestamp": "2010-11-18T16:35:23",
"content": "See alsoHarry Porter’s masterpieceandPONGMECHANIK.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214411",
"author": "Wehrwolf",
"timestamp": "2010-11-18T16:36:26",
"content": "That is quite a feat, almost sounds like its making music",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214412",
"author": "Mark",
"timestamp": "2010-11-18T16:47:09",
"content": "The system is down… The system is down… dodilly dooo dodilly doo",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5368183",
"author": "Rob",
"timestamp": "2018-10-29T23:33:29",
"content": "That’s what I heard too.",
"parent_id": "214412",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "214414",
"author": "heatgap",
"timestamp": "2010-11-18T16:48:47",
"content": "Beautiful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214416",
"author": "geekhousecalls",
"timestamp": "2010-11-18T16:50:07",
"content": "I love it! Retro is king. Reminds me of Multivac from Isaac Asimov’s “The Last Question”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214417",
"author": "smoker_dave",
"timestamp": "2010-11-18T16:50:19",
"content": "Yo",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214418",
"author": "sp00nix",
"timestamp": "2010-11-18T16:56:25",
"content": "@Markdoo da da doo doo!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214420",
"author": "sneakypoo",
"timestamp": "2010-11-18T17:01:42",
"content": "Normally I don’t care about typos and such but:“_yo_ can see”“running _and_ assembly code”“We’re always _surprise_”“_are_ limited to this application either”Really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214427",
"author": "smoker_dave",
"timestamp": "2010-11-18T17:10:39",
"content": "They get paid for writing these articles too sneakypoo. Teribble!Take some pride in your work and run a spell checker before hitting post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214429",
"author": "Mike",
"timestamp": "2010-11-18T17:15:05",
"content": "I wonder how much power that thing requires?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214438",
"author": "alan turing's dog",
"timestamp": "2010-11-18T17:32:43",
"content": "@sneakypoo –These days, decent writing skills cost money. HAD ain’t got no money, so what you pay for is what you get. Is it annoying? Yes, but only to people who know how to conjugate. It’s a dying skill. The rest of us just let it go.Some language books contain passages claiming that most of the population only knows or uses about 25-35% of any given language – and that in most cultures, they generally use just two or three thousand words/symbols/labels. You don’t really need much to meet a girl, start a family or to get a job writing teasers for hackaday.Live and let live, I say.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214443",
"author": "st2000",
"timestamp": "2010-11-18T17:38:10",
"content": "Wait!Did you see that?I think it was a moth…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214452",
"author": "Captain Obvious",
"timestamp": "2010-11-18T17:47:09",
"content": "To the grammar police,Yes, it can be annoying. However, these guys are hackers. They probably get hired on their ability to comprehend/summarize. Most of us can just live with it.alsohttp://www.youtube.com/watch?v=J7E-aoXLZGY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214504",
"author": "therian",
"timestamp": "2010-11-18T18:40:56",
"content": "tHiS iS AnnoYinG, and t1S 0r T4At, everything else doesn’t bother me.It is medically proven that grammar policing is mental disorder (type of Obsessive–compulsive disorder). Grammar nazi literally believe(sometimes unconscious) that wrong sentence can cause end of the world since it disturb the “proper” order of things, just like OCD person might believe that flipping a switch odd number of times will kill his family",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214505",
"author": "ejonesss",
"timestamp": "2010-11-18T18:41:02",
"content": "that is how one of the very first computers worked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214527",
"author": "Colecago",
"timestamp": "2010-11-18T19:01:48",
"content": "I worked on a machine once that ran mostly on relay logic. My job was to replace the relay logic with a PLC. Pretty crappy job since some of the plans weren’t updated for 20+ years, and some were in German from the original manufacturer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214632",
"author": "bob",
"timestamp": "2010-11-18T19:53:10",
"content": "@Colecago: Was it a Zuse computer? ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214646",
"author": "Jac Goudsmit",
"timestamp": "2010-11-18T19:57:35",
"content": "If I had 1500 relays and 15000 hours of time, I would SO be doing this at home too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214687",
"author": "DarkFader",
"timestamp": "2010-11-18T21:33:47",
"content": "I want to see an asynchronous-clock version. Anyway.. why hand-wire it when you can simulate and autogenerate/route the boards?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214714",
"author": "macw",
"timestamp": "2010-11-18T22:35:09",
"content": "@therianIt isn’t abnormal to appreciate good grammar. Writing proper, readable sentences is just another way to take pride in your work. Surely you can tell the difference between, say, a chair made of beautifully finished and polished hardwood, and one made of shipping crates and rusty nails? They both keep you off the ground, but one is pleasant to use and the other is ugly and painful. Writing is the same way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214724",
"author": "nes",
"timestamp": "2010-11-18T22:51:47",
"content": "@DarkFader: me too, though I fear the contact bounce and variability of propagation time would make it impossible.I think if was going to try this I would start out with the Picoblaze instruction set and shoot for a Harvard RISC machine. That ought to be doable with about 500 4-pole relays.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214754",
"author": "third",
"timestamp": "2010-11-19T00:02:39",
"content": "@nesPicoblaze instruction set? RISC? That’s a pretty big machine you’re describing here. Some of the core features of RISC architectures are the large number of general purpose registers and a 2 or 3 operand instruction set, luxuries you can’t really afford if you’re wiring each and every gate by hand.Try to really, REALLY minimize the instruction set and go for an accumulator or stack machine. And if you want something even smaller, check out the Turing tarpits like Brainfuck, which can be implemented using three counters and a small state machine (not including the memory or I/O), or actual Turing machines.Keep it fun, keep hacking and post your results here!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214755",
"author": "mike",
"timestamp": "2010-11-19T00:03:43",
"content": "dont forget about the big mess of wires!http://www.stevechamberlin.com/cpu/bmow1/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214782",
"author": "V_T",
"timestamp": "2010-11-19T01:39:13",
"content": "@macwExactly. Written language is no different than spoken language in that its proper use conveys respect for your audience and lends credibility to the speaker/author.@smoker_daveI can only hope you misspelled terrible in an act of sarcasm?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214788",
"author": "Hirudinea",
"timestamp": "2010-11-19T02:03:04",
"content": "I have no idea what it’s doing, but it looks SO cool doing it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214926",
"author": "Whatnot",
"timestamp": "2010-11-19T09:27:30",
"content": "They should rent it for ‘fringe’ for a few episodes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214952",
"author": "Nablaman",
"timestamp": "2010-11-19T10:26:22",
"content": "I was just informed my Zusie was on display here – thanks for featuring it guys =)And thanks for all the positive comments!It will be even cooler once the cabinet and the motor-driven clock (oh yeah!) I’m working on is finished.. ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214970",
"author": "nes",
"timestamp": "2010-11-19T11:45:01",
"content": "@third: I think if you leave out the interrupt mechanism and the compute parity instruction it comes to about ~120FFs and about the same number of four input LUTS. I’m basing my guesstimate on 2 four pole relays per LUT and 2 per flip flop. I reckon that’s pretty reasonable for an 8 bitter, though I have forgotten the register set which would require another 128 bits of RAM. Perhaps this could be done in a more relay-efficient way than two per bit.The downsides are that the instruction set is not very efficient compared to other RISCs, let alone microcoded machines.Don’t know about stack machines. Surely you’d still have the same problem with storage as you would with a register set in RAM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215005",
"author": "st2000",
"timestamp": "2010-11-19T14:24:49",
"content": "@Nablaman:Your comment: “motor-driven clock” reminded me of a similar device. Have you ever seen the stepping relays and motorized clock of an old pin ball game?I can’t find a really good picture of a pin ball motor acting like a clock. I did find this image. If I had to guess, that black square thing at the center of the photo looks like a likely candidate:http://www.pinrepair.com/bowl/scarey.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215007",
"author": "Nablaman",
"timestamp": "2010-11-19T14:36:33",
"content": "@st2000 Interesting! Stepping relays were used for the early Zuse machines for sequencing microinstructions, but I did not know that they were used for pinball games. I thought they were designed basically for use in telephone exchanges. I would enjoy getting my hands on some of those!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215010",
"author": "st2000",
"timestamp": "2010-11-19T14:42:36",
"content": "@nes (said):“Don’t know about stack machines. Surely you’d still have the same problem with storage as you would with a register set in RAM.”Ah, this is were people got crazy back in the 20th century. While you are thinking more relays… …them people were thinking about things like acoustic waves in columns of mercury or the persistence of the phosphor on a CRT.I’m thinking the Apollo guidance computer used something called rope memory:http://archive.computerhistory.org/resources/still-image/Apollo_Guidance/apollo_guidance_computer_rope_memory.c1962.102622686.lg.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215018",
"author": "st2000",
"timestamp": "2010-11-19T15:12:18",
"content": "@Nablaman (said):“Interesting!… I did not know that (stepping relays) were used for pinball games…I would enjoy getting my hands on some of those!”Warning! Old (bowling) arcade machines are big, heavy and have a very low WAF (Wife Acceptance Factor)!Got-to run…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215041",
"author": "lwatcdr",
"timestamp": "2010-11-19T16:37:34",
"content": "This would be such a cool exhibit!Build this CPU first in relays.Then with Tubes.Then with Transistors.Then with TTL ICs.Then with a CPLD.And have each running the same program!Just to show how much smaller and faster things have gotten.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215050",
"author": "Nablaman",
"timestamp": "2010-11-19T17:02:54",
"content": "@lwatcdr: Definitely a cool idea!A tube computer would be seriously cool but masochistic beyond belief to build – way worse than a relay computer =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215070",
"author": "alan turing's dog",
"timestamp": "2010-11-19T18:48:08",
"content": "@NablamanActually, if you pick your time period right, tubes aren’t so bad. By the early 1970’s you could purchase entire gates in miniature form factor that approached old RTL and discrete transistor package formats. The russians took a while to catch up to our semiconductor tech, so they stuck with small tubes.In 1976, when the MIG-25 pilot (victor whatshisname) defected to the west via japan, we discovered that the planes “very advanced flight computer” consisted of thousands of tiny tubes… you could pack 6 to 8 of them into a space the size of your thumb. Tubes were much more rugged than semis, and could survive EMP blasts.You can still find a lot of these tubes around, and some are still in limited production. You can still find pretty advanced scientific computers [well, calculators] based on thyratons if you look around. Thyratons need higher voltages, but run pretty cool and act like SCRs.Google anita calculator for a decent example. In general, once you throw out the need for wide, accurate or linear response curves, tubes can be pretty small. I’ve seen combination tubes that had multiple log elements (NAND, NOR) in one bulb.Apart from the need for 400vdc and cooling, building these demo systems from miniature tubes (seriously, this stuff is still in use) shouldn’t be hard.If you use decatrons and their ilk, and stick to diodes for the microcode, and don’t try to get carried away with program size, tubes offer a lot of advantages – namely a 3,000 to 6,000 hz cycle rate. That’s a speedup of 10 – 500x faster than relays.Also, it isn’t that hard to build either mercury delay line memory [you can still find prepackaged miniature lines circa 1960/1970 as surplus if you don’t want to fool with mercury] or core memory.At these speeds, you can also use mechanical memory, following zuse’s 1930 design – or, with very little work and a high persistence phosphor tube, you can implement a small but speedy scratch pad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215075",
"author": "Eddie",
"timestamp": "2010-11-19T18:59:52",
"content": "FYI, The namesake of this project is Konrad Zuse.Here is his Wikipedia entry.http://en.wikipedia.org/wiki/Konrad_ZuseAnd an excerpt:Many of his projects were in collaboration with the Nazi Germany, which supported, financed, and deployed many of them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215105",
"author": "Nathan Zadoks",
"timestamp": "2010-11-19T21:43:36",
"content": "@Eddie On the excerpt – a sad thing, but.. Godwin’d!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215280",
"author": "alan turing's dog",
"timestamp": "2010-11-20T05:59:06",
"content": "@eddieZuse was largely ignored during WW2, and his toys were used to calculate wing spar dimensions – not very sexy. Wikipedia is a mess on this guy, read the original sources.He was in collaboration with Nazi Germany to the same extent that Radio Shack “collaborated” with the Bush administration.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215379",
"author": "Nablaman",
"timestamp": "2010-11-20T11:02:47",
"content": "@eddie I absolutely agree with alan turing’s dog, Zuse was a german working in Germany during the war. To not in any way have any connection with the Nazis would require him to live under a rock somewhere (which incidentally he almost did during the later years of the war – he hid in an Alp town in Bavaria to save himself, his family and his machines, both from Nazis and allies.) His interest in politics seems to have been slim to none, he was just a genius who got sick of doing hand calculations for bridge construction and invented the computer (!) to do this mundane work for him.@alan turing’s dog Thank you for the information on the tubes! I will definitely look into this in more detail. May I ask what your background is with your knowledge in these topics?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.087608
|
||
https://hackaday.com/2010/11/15/excuse-me-my-pinky-is-ringing/
|
Excuse Me, My Pinky Is Ringing
|
Mike Szczys
|
[
"Cellphone Hacks"
] |
[
"bluetooth",
"finger",
"handset",
"phone",
"pinky",
"prosthetic"
] |
We get a lot of email challenging us to hack things. Sometimes we ignore them, other times we send some words of encouragement. But this time around we thought [Tait] had really come up with a great hack; to build a Bluetooth handset into his prosthetic finger. He hasn’t done much hacking in the past and was wondering if we could put out a challenge to our readers to make this happen. After a bit of back-and-forth brainstorming he decided to take on the challenge himself and was met with great success.
Like
other Bluetooth handset
hacks [Tait] started with a simple ear-mounted module. He extended the volume button with a piece of plastic and placed it under the battery. A couple of wooden matchsticks space the battery just enough so that it can be squeezed to adjust the volume level. He then extended the speaker with some wire. Next, he used
the Oogoo recipe from our previous post
to mold a false-finger and a thumb-ring. The PCB and battery fit in the finger, which places the microphone near a hole in the pad of the plastic pinky. The thumb ring houses the speaker to finish the look. Don’t miss the photos [Tait] sent in after the break.
The Bluetooth module PCB:
The completed prototype can still be recharged:
And it fits like a glove:
Originally he told us this hack was above his skill level. Well congratulations… looks like your hacking skills just moved up a few notches!
| 28
| 27
|
[
{
"comment_id": "213035",
"author": "Spork",
"timestamp": "2010-11-15T21:16:50",
"content": "Strange looking, but definitely has the classic spy feel to it. I like the matchstick concept and well the fact that it actually works as a phone.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "213037",
"author": "Caleb Kraft",
"timestamp": "2010-11-15T21:19:59",
"content": "This is great. Version two needs a little better skin tone. maybe a latex sleeve painted to his skin tone.",
"parent_id": "213035",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "213078",
"author": "Eages",
"timestamp": "2010-11-15T22:44:37",
"content": "How was there not inspector gadget reference in this article!? [Mike Szczys] I am disappoint. It is a superb, simple hack though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213081",
"author": "tnfreak",
"timestamp": "2010-11-15T22:47:42",
"content": "any1 else think of inspector gadget when seeing this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213099",
"author": "Mystic Shadow",
"timestamp": "2010-11-15T23:32:36",
"content": "Really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213106",
"author": "John C. Reid",
"timestamp": "2010-11-15T23:42:18",
"content": "I was pretty bummed a week ago today because I chopped my pinky off at work – I am not joking. This make me feel a bit better. At least I have an idea as to what project I can take up next.Actually the skin grafts are not taking and I have to go in tomorrow to see what my options are as I also lost the skin on the inner side of my three middle fingers. I wonder if I can use this to my advantage? Maybe we could do away with the wire between the finger and the thumb? Hmmm . . .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213119",
"author": "Hirudinea",
"timestamp": "2010-11-16T00:05:18",
"content": "Should have built it into a leather glove, much cooler looking and handy for winter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213121",
"author": "zool",
"timestamp": "2010-11-16T00:14:41",
"content": "needs to have a cap so you can pull it back then pull out the antennaor maybe you could add voice recognition and make it work automatically when you say “go go gadget phone”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213127",
"author": "Tait",
"timestamp": "2010-11-16T00:28:04",
"content": "great ideas.im open to all suggestions for when i make the pinkyphone3000! love the go go gadget …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213129",
"author": "Anon",
"timestamp": "2010-11-16T00:36:37",
"content": "@Hirudinea Handy…Hehehe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213134",
"author": "tommy",
"timestamp": "2010-11-16T00:44:23",
"content": "just don’t ask about the fax attachment.:-D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213165",
"author": "whitecloud",
"timestamp": "2010-11-16T01:36:56",
"content": "I think the skin coloured latex idea would be a good improvement.An idea i had was to have the wire connecting the main board to the speaker on a kind of retractable spool. Like the sort on some vacuum cleaners power cords, in miniature.this way depending on where you let that wire leave the pinky finger and join the ring, you could have the wire retract when not in use, and store the ring on the pinky finger.then when you get a call you take the ring from the pinky and put it on the thumb. And when not in use the wire isnt hanging out were in might get caught on something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213190",
"author": "Stephen Zuercher",
"timestamp": "2010-11-16T03:14:57",
"content": "this instantly boosts you 10 years into the future. When people start getting “real” electronic implants, this could very well be on the list. Thanks for sharing! made me smile to see a real go go gadget existing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213196",
"author": "Jeditalian",
"timestamp": "2010-11-16T03:33:38",
"content": "I want a head-implantable mp3 player, complete with subdermal microSD slot, powered by the force, or stray radiowaves or maybe a mini nuclear reactor. i am prepared to amputate a bit of my brain to make this happen. anybody??",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213198",
"author": "Jeditalian",
"timestamp": "2010-11-16T03:34:19",
"content": "no speakers either. hardwired to the auditory cortex.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213244",
"author": "whitecloud",
"timestamp": "2010-11-16T05:40:50",
"content": "iv thought about this too, how do cochlear implants work? could you get something like that but rather then picking up outside sounds, it gets the sound from a little sound jack behind your ear.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213304",
"author": "Neckbeard",
"timestamp": "2010-11-16T08:20:37",
"content": "Go go gadget phone!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213314",
"author": "cde",
"timestamp": "2010-11-16T09:13:04",
"content": "He looks like a Bond Villain in the picture. Maybe an Agent of KAOS. Sigfried, is that you?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213376",
"author": "echodelta",
"timestamp": "2010-11-16T13:14:01",
"content": "Better to make it look like a bandage than a deformed bloated finger or a wiener. Or maybe make it as a stylish Borg part.A national advert from the mid 60’s that the alien thing down went. “Six finger six finger man o live, how did I ever get along with five”One held it in place with the base of the thumb and it could shoot some missile or light up.As to the ear-plant the current type let you hear about 20 tones no choice. With much training those tones with lip reading are a brave first step for those profoundly deaf. My aunt had one 20 some years ago. One could simply jack audio in in place of the mic but it would get the worst “compression” more than any mpee could ever do. Listening to mpee’s is like having instant hearing loss, continued exposure will cause real and permanent loss. There is a triple threat of earbuds, post MTV production values, and the damage done with the m-pee-3 process. Our ears and brain are built to the physics of pink noise, not the white noise delivered with the state of the art. The treble is orders of magnitude higher!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213383",
"author": "PlastBox",
"timestamp": "2010-11-16T13:59:23",
"content": "@whitecloud:No need to screw up your hearing, just go for bone conduction speakers. These things send vibrations into the inner ear through the knob of bone behind the ear, making the sound audible to you even in high-noise environments. Pretty neat..http://en.wikipedia.org/wiki/Bone_conduction",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213443",
"author": "Jeditalian",
"timestamp": "2010-11-16T17:14:02",
"content": "i do like the idea of making it blend more, even molding a realistic pinky around it and wearing it with a bandaid. bluetooth dongle internals are already sub-pinky size already. a glove would be best though, to house the speaker and battery comfortably",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213454",
"author": "Tait",
"timestamp": "2010-11-16T17:48:55",
"content": "I thought about a glove but then I would have the Michael Jackson look. I am looking for a smaller Bluetooth device, but how would you make a dongle interpret incoming cell calls, and adding a mic, speaker, functions???",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213535",
"author": "Drake",
"timestamp": "2010-11-16T20:51:23",
"content": "The picture needs to have a caption“This are serious business”Use the same technique to make buttons on your fingers that you press with your thumb. Result: keyboardless keyboard",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213550",
"author": "Chris",
"timestamp": "2010-11-16T21:47:35",
"content": "To be honest, I prefer that it looks like something worn over a finger, rather than looking exactly like a finger.Don’t make it smaller or flesh colored. Don’t put a glove over it. Make it look like an obvious piece of technology, that fits over a finger but with a miraculously small profile. Paint it gloss black and stencil Nokia or iFinger on it or something.It’s bad enough people wear Bluetooth earpieces invisibly under their hair, and appear to be talking to themselves. Or they don’t bother to check that they’re not looking directly at someone else when they take a call and say “hello”, leaving the other person wondering if the phone user is talking to them.Seeing someone talk to what appears to be their finger would be even worse!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213573",
"author": "Tait",
"timestamp": "2010-11-16T22:27:10",
"content": "thats a good idea on putting ‘nokia or ifinger’ on it, thats an easy way of giving it a cool look.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213585",
"author": "therian",
"timestamp": "2010-11-16T22:55:00",
"content": "None of the doctors I asked agreed to cut my finger so I can put some electronics on its place",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213670",
"author": "bobdole",
"timestamp": "2010-11-17T03:44:04",
"content": "It looks really nice from far away, but when you zoom in it really does just look like a blob.I think it would be a lot nicer if he molded an existing prosthesis to give it more of a finger shape, then added some food coloring to make it flesh toned.Still, a truly awesome hack. Makes me wish I were missing a digit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213950",
"author": "StefanL38",
"timestamp": "2010-11-17T18:38:13",
"content": "REALLY GREAT I LOVE IT. It’s soo coool !showing lot’s of self confidence about a handycapencourages handicaped people to make something special that will help them that’s really cool.The coolest thing is: you need to be handycaped to wear it like this.That’s a really great basic idea about prothetics",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.292664
|
||
https://hackaday.com/2010/11/15/rendering-a-3d-environment-from-kinect-video/
|
Rendering A 3D Environment From Kinect Video
|
Mike Szczys
|
[
"Kinect hacks",
"Video Hacks"
] |
[
"3d",
"c++",
"Kinect",
"render",
"scanning"
] |
[Oliver Kreylos] is using an
Xbox Kinect to render 3D environments from real-time video
. In other words, he takes the video feed from the Kinect and runs it through some C++ software he wrote to index the pixels in a 3D space that can be manipulated as it plays back. The image above is the result of the Kinect recording video by looking at [Oliver] from his right side. He’s moved the viewer’s playback perspective to be above and in front of him. Part of his body is missing and there is a black shadow because the camera cannot see these areas from its perspective. This is very similar to the
real-time 3D scanning
we’ve seen in the past, but the hardware and software combination make this a snap to reproduce. Get the source code from his page linked at the top and don’t miss his demo video after the break.
[youtube=http://www.youtube.com/watch?v=7QrnwoO1-8A]
[Thanks Peter]
| 76
| 50
|
[
{
"comment_id": "212998",
"author": "Michael",
"timestamp": "2010-11-15T20:05:51",
"content": "I wonder if you took 3-4 of theses and synchronized them, putting one on each wall of a room, you could get a higher quality environment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213001",
"author": "Daniel Magliola",
"timestamp": "2010-11-15T20:10:19",
"content": "Hmmmm, this would be interesting to see with TWO Kinect’s, that’d fill all the blanks, right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213002",
"author": "Michael Bradley",
"timestamp": "2010-11-15T20:10:49",
"content": "I love it!!!! Can you take 3 of these and point them at the center of the room so as to build a complete 3D image without shadows???",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213003",
"author": "mixadj",
"timestamp": "2010-11-15T20:10:51",
"content": "Thats aweswome…………",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213007",
"author": "twistedsymphony",
"timestamp": "2010-11-15T20:19:01",
"content": "this is probably one of the cooler Kinect hacks I’ve seen… I was apprehensive about the device at first, but now I want one just to fool around with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213008",
"author": "spyder_21",
"timestamp": "2010-11-15T20:19:29",
"content": "Its a nice start towards the right direction. I might buy one soon if cool stuff like this comes out. Would not buy it to play stupid kinecct games.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213009",
"author": "xeracy",
"timestamp": "2010-11-15T20:27:05",
"content": "@Michael Bradley – 3x Kinect == Cheap Mocap? Im looking at getting one for some form of live production visuals.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213011",
"author": "spiritplumber",
"timestamp": "2010-11-15T20:29:06",
"content": "This is incredible. The Kinect is going to open up a lot of avenues of research.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213013",
"author": "Garak",
"timestamp": "2010-11-15T20:32:13",
"content": "Really really cool…Will using more than one kinect sensors work? My understanding is that it projects a “grid” of IR dots over its field of view and uses them for the measurement. Will intersecting grids confuse the sensors?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213015",
"author": "Roon",
"timestamp": "2010-11-15T20:41:27",
"content": "I really want to see someone do something with 4 of these, you could do so much…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213016",
"author": "xeracy",
"timestamp": "2010-11-15T20:41:38",
"content": "@Garak – i imagine this could be done my quickly turning the dots on/off and sampling them in a continuous cycle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213017",
"author": "turn.self.off",
"timestamp": "2010-11-15T20:42:08",
"content": "ok, how long until someone builds a esper machine out of all this?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213019",
"author": "Michael Bradley",
"timestamp": "2010-11-15T20:49:35",
"content": "@xeracy, I think so, and this guy did a great job. I am impressed with how when he rotates it, how much information is available around the corners, ie: the front of his face, when the cam is to the side.When he rotated, I had flash back to The Matrix, the first scene when the girl is in the air, and all stops, camera rotates, and she continues. Just imaging, that was done with several still cameras all positioned, etc…. with this, just freeze, rotate, and continue!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213022",
"author": "Drake",
"timestamp": "2010-11-15T20:56:25",
"content": "Next stop 3D PORN!Anywho …Would interfacing the kinect with a wii be HaD worthy?I may have a crack at it later this week if so …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213023",
"author": "xeracy",
"timestamp": "2010-11-15T20:56:38",
"content": "@Michael Bradley – and the kicker? ITS ALL REAL TIME! I really wish i was skilled enough to do this on my own.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213024",
"author": "macpod",
"timestamp": "2010-11-15T20:56:42",
"content": "Wow, I did not realize the system was that precise. I thought in situations as this that the depth stepping increments would be closer to a foot or so in distance if not more.Judging from the coffee mug and torso shots however, it seems the distance granularity is much smaller! Now I want one",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213025",
"author": "IssacBinary",
"timestamp": "2010-11-15T20:56:59",
"content": "Just use real time photoshop content aware fill to fill in the gaps ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213028",
"author": "Oren Beck",
"timestamp": "2010-11-15T21:03:41",
"content": "Hopefully, someone will write a “Parser” environment for Kinect data. To make files that could somehow be rendered into Skeinforge Etc parameter/object details.Enlisting the commercial solid print bureaus like oh-Shapeways and their peers in a scheme of “printed object credits for prize funding” might kickstart the ideas.It would be way cool to have 3D busts of my Grandkids..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213031",
"author": "Filespace",
"timestamp": "2010-11-15T21:05:28",
"content": "i would like to see this guy manipulate a virtual object in real-time if even a ball perhaps",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213040",
"author": "jc",
"timestamp": "2010-11-15T21:35:52",
"content": "I’m wondering… what would it look like if you added a mirror in the kinect’s vield of vision?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213059",
"author": "Whatnot",
"timestamp": "2010-11-15T21:42:19",
"content": "Sorry guys but you likely can’t do more than one at the same time, it projects a IR pattern as part of gathering data, that would interfere and fail with more than one in a room.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213061",
"author": "Sci",
"timestamp": "2010-11-15T21:48:06",
"content": "Now someone just needs to hook this up to a cheap 3D display for live holographic video calls.My bets are on something like the DLP project+spinning mirror combo. Or possibly a spinning LCD if someone can get all the power & signal connections to it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213068",
"author": "rizla",
"timestamp": "2010-11-15T22:08:37",
"content": "In response to the can it use more than one kinetic. If you changed the frequency of the IR, would you be able incorporate more kinetics without having them step over each other?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213074",
"author": "TheZ",
"timestamp": "2010-11-15T22:24:57",
"content": "Quick Thought: You can use different IR wavelengths. You would have to replace the IR LEDs. And code how to detect them.>Sorry guys but you likely can’t do more than one at the same time, it projects a IR pattern as part of gathering data, that would interfere and fail with more than one in a room.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213077",
"author": "chbab",
"timestamp": "2010-11-15T22:42:06",
"content": "It seems that your shape evolved did a huge work in this direction for its player projection as its silhouette is very clean compared to what you see here … It opens the door to augmented reality stuff with a cheap device :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213083",
"author": "Removed",
"timestamp": "2010-11-15T22:56:55",
"content": "kind of reminds me of that software from movie Deja Vu",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213084",
"author": "rasz",
"timestamp": "2010-11-15T23:02:29",
"content": "IR projector in Kinect means you cant use more than one at the same time. You can sync them like ToF cameras.But you could use few more normal cameras and use Kinect depth info to reconstruct/simulate/cheat the whole scene.There are algorithms that reconstruct 3D scene from ONE video feedhttp://www.avntk.com/3Dfromfmv.htmHaving few at different angles + one with 3D data should speed things up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213085",
"author": "da13ro",
"timestamp": "2010-11-15T23:04:46",
"content": "Not sure if the kinect requires any reference points for calibration – but instead of different wavelengths (which I imagine would be difficult/impractical) couldn’t you setup a shutter system, solid state. Block the IR of other units, sample data on one and cycle. Would slow down your available refresh rate.Sweet hack mate, very impressed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213086",
"author": "rasz",
"timestamp": "2010-11-15T23:06:46",
"content": "^^^CANT sync them like ToF cameras.I like the idea about different IR wavelengths, but i think Kinect uses laser instead of led.I guess you could use two Kinects directly in front of each other just making sure IR dots dont end up at each other cameras – that would give you almost 90% of 3D and texture data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213088",
"author": "cornelius785",
"timestamp": "2010-11-15T23:08:18",
"content": "@TheZI don’t know about different wavelengths for multiple kinects. Alot of it depends if the kinect can differentiate between different wavelenghts AND being able to hack the firmware to do stuff appropriately. Hasn’t all the hacking been on the computer side of just controlling it and getting useful information back? I’d either go with very narrow filters or synchronize all the kinect together and some multiplexing. If it is possible, I’m sure someone will figure out.Wasn’t it in Hitch Hiker’s Guide to the galaxy that they mention the progression of user interfaces as: physical button -> touch interface -> wave hand and hope it works? Isn’t the third stage upon now? I’m wondering how long I have to wait before I can control my Mythtv box with hand gestures in the air.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213102",
"author": "aarong11",
"timestamp": "2010-11-15T23:35:45",
"content": "Hmm, instead of replacing the IR LEDs, wouldn’t it be possible to place IR filters in front of both the LED and Detector of different Kinects? That way, each Kinect should only detect the wavelength of IR light it was emitting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213110",
"author": "sarrin32",
"timestamp": "2010-11-15T23:46:58",
"content": "you could put on a gimp suit where each joint is a different colour (forearms, hands, thighs etc). The computer could use the colour coding to identify each joint, do measurements etc…then it could do motion capture….add the motion capture to a real time or post calculated 3d scene with digital actors….hurray. How long till we get kinect to bvh converters?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213118",
"author": "Eamon",
"timestamp": "2010-11-16T00:05:16",
"content": "The trick would be to calculate SIFT points on some frames, and use those to track objects as they move. This is the basic mechanism behind current reconstruction techniques, whether they use one or two cameras. The depth map would improve the fidelity of the representation, and should provide shortcuts that would let this run faster.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213128",
"author": "blue carbuncle",
"timestamp": "2010-11-16T00:30:05",
"content": "Keep up the good work everyone! Kinect is coming along nicely :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213135",
"author": "Mike",
"timestamp": "2010-11-16T00:44:26",
"content": "Outstanding work…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213141",
"author": "jim",
"timestamp": "2010-11-16T00:59:57",
"content": "I swear I’ve imagined doing this for years, and how cool the glitches and shadows in some set ups would look.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213142",
"author": "Colecago",
"timestamp": "2010-11-16T01:01:08",
"content": "That is pretty amazing. Picture does not do it justice, video is awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213144",
"author": "qn4",
"timestamp": "2010-11-16T01:06:18",
"content": "In regards to those arguing against using multiple Kinects at once, one could consider putting something along the lines of the ‘shutter glasses’ (used for many of the current ‘3D’ displays) over the IR projectors, and dropping the (depth) frames not associated with the ‘currently projecting’ Kinect. I’m sure that a bit of crafty software design could interpolate the two 15Hz (normally 30Hz IIRC) streams fairly well, too.Better yet if the exposure time is less than 1/60th of a second (30Hz/2) and the sync can be intentionally offset…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213145",
"author": "NatureTM",
"timestamp": "2010-11-16T01:08:23",
"content": "After this seeing this, I’m absolutely getting one. Very cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213147",
"author": "qn4",
"timestamp": "2010-11-16T01:12:50",
"content": "da13ro beat me to it… I really have to refresh the page sometimes before posting things. Still, this thing is full of awesome capabilities, and it’s great to see that so many skilled people are making use of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213150",
"author": "Martin",
"timestamp": "2010-11-16T01:19:09",
"content": "Could you polarise the IR coming from two kinects at 90 degrees to each other. Then use filters on the cameras to block the other set.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213180",
"author": "macw",
"timestamp": "2010-11-16T02:24:36",
"content": "polarization would work just fine provided that there was enough light remaining after the fact for the camera to work properly.So would strobing them on and off alternately — it’s a very common procedure when you have multiple sensors operating on the same band (ultrasonic distance sensors are a notable case, since there’s not much ability to reject returns).Filtering for wavelength might work, provided that you had physical bandpass filters on the camera. The depth sensor is monochrome and would react basically the same to any frequency it’s responsive to (different brightness but because it’s an uncontrolled environment you can’t rely on that to differentiate two sources).I would guess that polarization would be the cheapest and quickest to implement, with bandpass filters being not that much more complex. Time-division multiplexing would only be a good idea where you absolutely cannot modify the kinect hardware in any way for some reason…otherwise it’s just a waste of effort.I do really want to see what happens if you put a mirror in the path, though. I’m imagining a “window” in the feed through which you can look and see the other side of your room, just as if the mirror were actually a window into an alternate dimension :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213183",
"author": "Torwag",
"timestamp": "2010-11-16T02:34:55",
"content": "about the IR grid stuff I would assume they modulate the IRs by some frequency to avoid influence of other IR emitters. Either that, or one has to modulate the IR by themself. After that it would be relatively easy to use several units simultaenoulsy by giving each of them a different modulation frequency and using an electrical filters or an FFT algorithm to isolate the indvidual frequencies from each other.No need for different wavelength, optical filters, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213212",
"author": "TR",
"timestamp": "2010-11-16T04:28:19",
"content": "Its unlikely that they modulate the IR output (as in pulse the laser/LED whichever it is) because the camera would have to be able to capture at least that fast. >120Hz for US incandescent lights. So, a camera that captures video at greater than say 300-400 FPS to adequately figure out whats noise and whats signal. Doubt they used anything like that. I think the polarization would be the best bet without opening up the connect. Would try it if I had another connect and time…. Maybe someone can try using two pairs of the free 3D theater glasses. One glasses lens for each projector and depth camera.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213267",
"author": "curious",
"timestamp": "2010-11-16T06:26:03",
"content": "Could you hook up multiple kinects to capture the other angles of the room and have a full 3d map?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213270",
"author": "Michael Bradley",
"timestamp": "2010-11-16T06:32:51",
"content": "I just looked at this guys youtube page, OMG, this guy is on it! I thought I was fast with code (only uControllers) this guy rocks! He did some augmented vr, addressed the mirror question, etc..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213277",
"author": "qwed88",
"timestamp": "2010-11-16T06:40:52",
"content": "I’m not wanting live video like that, but if it could fix a Kinect to a rotating base and scan environments in 3d! This would be functional I could use this.Or software written to take slices so an object could be rotated in front of it and scanned. This would make a relatively cheap 3d scanner.Seems as if one could use this with a program like Zbrush to sculpt with your hands.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213280",
"author": "qwed88",
"timestamp": "2010-11-16T06:52:58",
"content": "As a follow up to my comment I just saw another video of his, with a cg model of a creature sitting on his desk moving and all in real time. He’s really not that far from the Zbrush idea.Imagine a Kinect above your monitor as your sculpting with your hands the model on the monitor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213303",
"author": "EquinoXe",
"timestamp": "2010-11-16T08:15:58",
"content": "re 2 kinect: in theory should be easy.get 4 linear polarization filters (2 for each kinect).Polarize kinect 1 @ 135º and kinect 2 @ 45º(place a polarizing filter on depth cam as well as upon IR source)now both kinects can’t see each other but they can see their own beam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213337",
"author": "yeah",
"timestamp": "2010-11-16T11:14:15",
"content": "@EquinoXePolarization is normally not sustained under diffuse reflection, so even though the light would be polarized, the light coming back from the scene wouldn’t. I guess a shutter system as suggested above could do the trick, but then you’d have to hope that the kinect doesn’t use any type of temporal coherence.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.169561
|
||
https://hackaday.com/2010/11/15/in-button-display-for-your-cars-dashboard/
|
In-button Display For Your Car’s Dashboard
|
Mike Szczys
|
[
"Transportation Hacks"
] |
[
"boost",
"dashboard",
"display",
"oled",
"pic",
"temperature"
] |
Here’s an interesting take on augmenting a car’s dashboard. [Daniel] is using a button blank to house a
1″ OLED display in his Jetta
. It shows auxiliary data such as boost pressure and several sets of temperature readings. The display itself has a tiny little circuit board with a PIC 24 to drive it. A larger board, seen above, collects the temperature data from some sensors that [Daniel] added as part of the hack. There are some pictures of the installed display inside of the dark car and it looks really easy to read. It also sounds like there’s some dimming functionality built into the firmware. This is the easiest way we’ve seen to add a display to your dashboard as it just requires you to pop out a button blank, rather than disassembling the entire console or
patching into what’s already there
.
| 17
| 17
|
[
{
"comment_id": "212981",
"author": "spiralbrain",
"timestamp": "2010-11-15T19:16:52",
"content": "these displays are pretty cool. I remember them from the MPman MP3 players. looks like a job well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212983",
"author": "fartface",
"timestamp": "2010-11-15T19:20:14",
"content": "No info just photos, no sources for the displays..kind of novel, I have seen this on other car forums for small LCD’s but if you link to something make sure it’s got details otherwise its fake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212987",
"author": "Bill",
"timestamp": "2010-11-15T19:39:10",
"content": "VW 4 Life!http://www.youtube.com/watch?v=qgEvy60bZYISorry for useless comment, I just love my VW a whole bunch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212997",
"author": "Tiago",
"timestamp": "2010-11-15T20:04:27",
"content": "Maybe one of those:http://www.crystalfontz.com/product/CFAL12864N-A-B1.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213005",
"author": "queso",
"timestamp": "2010-11-15T20:14:14",
"content": "Cool project, but it seems like a wiring nightmare. He is running sensors from the head unit to all of his sensing location. Wouldn’t it just be easier to tap into the OBDII or CAN bus?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213006",
"author": "sp00nix",
"timestamp": "2010-11-15T20:18:03",
"content": "what’s strange is, i was fixing a transmission flush machine this weekend that used that sensor you see there in the image posted to read the tank levels via air pressure. I thought it would be cool to hook one of those up to a micro controller and LCD and make a boost/vacuum gage out of it. wacky lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213041",
"author": "error404",
"timestamp": "2010-11-15T21:38:13",
"content": "@queso:He appears to have built a second board for the sensors that’s in the engine compartment. Probably communicates by some serial bus. At least he’s not pulled sensor lines all the way to the dash…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213072",
"author": "Daniel",
"timestamp": "2010-11-15T22:14:43",
"content": "Hi Guys, sorry for the stupidly low amount of info given in those posts, but alas it is a motoring forum, not an electronics one.The project was also an impromptu one, so documentation is scarce, as with most of my projects :)All the sensor wires run to the secondary board in the engine bay, where a PIC24 samples them. The temp sensors are LM35’s mounted into original VW sensor housings. I measure the intake air, pre- and post-intercooler as well as EGT temperatures. The boost sensor is a MPX4250, good for 2.5bar of boost. The samples are then formatted into ‘C and bar values, packed and sent via a RS485 link to the display unit. Thus there are only 4 wires in a single core to run into the (very cluttered) dash. The display unit recieves them and display’s them on the OLED (http://za.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0554134). Ask if you guys have questions, I’ll answer as I can.Regards,JVRDesign",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213098",
"author": "carhack",
"timestamp": "2010-11-15T23:30:08",
"content": "this is cool.been thinking about putting an embedded micro in my car — I would like to be able to read some data in my car’s computer via the diagnosis port (?) but I am not sure where to start. Maybe add some other stuff in there too – proximity sensing and a way to track gas economy if possible.does anyone have any links to similar projects online or a good source for projects like this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213124",
"author": "Jon",
"timestamp": "2010-11-16T00:21:00",
"content": "Someone e-mail me …..NISSAN wiring display work wanted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213257",
"author": "spiralbrain",
"timestamp": "2010-11-16T06:02:08",
"content": "okay one question please, what sensor are you using to measure 825c the exhaust temperature?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213281",
"author": "Stromlo",
"timestamp": "2010-11-16T06:53:07",
"content": "Looks nice! GF.A!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213283",
"author": "Daniel",
"timestamp": "2010-11-16T07:00:53",
"content": "@ spiralbrainIts a type K thermocouple, with a gain stage, accuraccy is about 30’C",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213415",
"author": "Justin",
"timestamp": "2010-11-16T15:56:46",
"content": "I’ve been working off and on, on a similar project (which has at one point been on this site).When I first put it up it was something that replaced the clock on a wrx console. Now it’s a small touchscreen.http://www.robotmeter.com(has a link to the google code page too)http://www.youtube.com/watch?v=oDBASpMAIUg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213416",
"author": "Justin",
"timestamp": "2010-11-16T15:57:17",
"content": "…and wtf is up with the youtube embedding. I kind of feel bad for posting it now….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213440",
"author": "CapnBoost",
"timestamp": "2010-11-16T17:08:42",
"content": "@carhackIt wouldn’t be much of a hack, but I’ve been using a ScanGauge to read all of those things from the OBDII bus.Building a table that can read your instant injector duty cycle, fuel pressure, and speed then extrapolate that in to mpg would be difficult to say the least.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213456",
"author": "robmora",
"timestamp": "2010-11-16T18:08:09",
"content": "@CapnBoostThat’s more or less what I did (on a vw as well). But while it makes for a cleaner install (with basically just connecting to the OBDII bus instead of running wires to all kinds of sensors) there’s advantages to this method as well… data rates from the OBDII are merely ‘acceptable’ while here he can probably sample as often as he wants (this is with my non-CAN Golf, perhaps the newer CAN network OBDII can do better than the 3-4 samples/second I’m getting out of the OBDII data).",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,333.931099
|
||
https://hackaday.com/2010/11/15/girltech-sugar-cubes-monocrome-lcd/
|
Girltech. Sugar Cubes. Monocrome LCD
|
Greg R. Jacobs
|
[
"Toy Hacks"
] |
[
"girltech",
"lcd",
"sugar cube"
] |
We’ve seen these little toys called “sugar cubes” by GirlTech around for a while now. They are a toy block, with an LCD on the front and they respond to movement, button presses and they interact with each other if you stack them up. We’re just as curious as anyone else about their internals, but maybe not quite curious enough to rush out and buy one. Luckily, we don’t have to as [Joby] has done it for us and
documented what he found
. While it may be lacking in extreme detail, at least our curiosity is somewhat satiated.
We can see that it has a 16×16 LCD, an unknown chip hidden under an epoxy blob as usual. To determine what character is shown, you can bridge one of 4 spots on the PCB, though he has only managed to switch to a little ninja and a question mark. Does anyone have any brilliant ideas on a project for these?
| 13
| 13
|
[
{
"comment_id": "212926",
"author": "Drake",
"timestamp": "2010-11-15T17:08:19",
"content": "Website already HaDOS – d",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212930",
"author": "godi",
"timestamp": "2010-11-15T17:20:09",
"content": "maybe host a blog on it :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212931",
"author": "ehrichweiss",
"timestamp": "2010-11-15T17:21:35",
"content": "Hopefully the server will straighten up and we can use this cache…http://blog.hodgepig.org.nyud.net/2010/11/01/girltech-sugar-cubes/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212932",
"author": "reemrevnivek",
"timestamp": "2010-11-15T17:26:17",
"content": "@ehrichweiss – That link didn’t work, but I found the Google cache here:http://webcache.googleusercontent.com/search?q=cache:nVefE1eerOwJ:blog.hodgepig.org/2010/11/01/girltech-sugar-cubes/+hodgepig+girltec&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212935",
"author": "Joby Taffey",
"timestamp": "2010-11-15T17:39:27",
"content": "Web server fixed",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212938",
"author": "JB",
"timestamp": "2010-11-15T17:44:59",
"content": "I guess it’s down again (“error establishing a database connection”)Using Google cache link. Thanks reemrevnivek!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212956",
"author": "Vince",
"timestamp": "2010-11-15T18:22:57",
"content": "Ive got 3 of these things tucked away somewhere, was bought as a naff stocking filler.I seem to remember when connected (by magnets) the characters move from one cube to the other…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212974",
"author": "Slanesch",
"timestamp": "2010-11-15T19:00:36",
"content": "Sure, but sadly enough, the Sugar cubes were just a rip off of Cube world. Instead of the new avatars in the Girltech Sugar Cube, there were stickmen.I got a couple as a gift from my friends a few years back. i remember when i cracked them open, they werent much different. i think the only difference was the battery mount. and even that was similar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212982",
"author": "jeicrash",
"timestamp": "2010-11-15T19:17:01",
"content": "Looks like the lcd screen could be useful, A nice icon badge for a case or project. Not to fond of that cheap looking tilt switch, more then likely its filled with a small amount of mercury.If anyone gets specs / pin outs for screen let us know.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212999",
"author": "zeropointmodule",
"timestamp": "2010-11-15T20:07:07",
"content": "turn one into a generic pc data display?hint:- most “tilt” switches these days use little ball bearings rather than mercury.Possibly even galinstan as only a minute amount is needed and its liquid well below 0 C.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213060",
"author": "Patrick",
"timestamp": "2010-11-15T21:42:49",
"content": "get enough of em to make a monitor to play 4 or 8 bit video games",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213113",
"author": "MoJo",
"timestamp": "2010-11-15T23:56:36",
"content": "These chip-on-pcb blobs seem to be mostly unhackable. It will most likely be a microcontroller of sine kind with a small ROM. One time programmable. Built in LCD controller.It’s a shame because there are lots of cheap devices using them but there is no way around it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213389",
"author": "BoKu",
"timestamp": "2010-11-16T14:39:48",
"content": "I wonder how these compare to Cube World?http://www.firebox.com/product/1201/Cube-World",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.337594
|
||
https://hackaday.com/2010/11/15/c-portable-settings-provider/
|
C# Portable Settings Provider
|
Greg R. Jacobs
|
[
"Software Hacks"
] |
[
"c sharp",
"c++",
"code",
"content",
"portable",
"provider"
] |
We live in a world where everything must be portable, ranging from mobile applications to making an application able to run on Linux, Windows and OS X. Making a C# application to be completely portable across all windows computers is a problem that Microsoft knows about and willingly admits they will not fix. [Mike] from Geek Republic has taken it upon himself to show us how to
hack up some code to make your programs portable
. This code is a good push forward for people loving the portability of modern applications. He will admit that bugs may exist so be on the lookout and he would probably appreciate the feedback. Looking forward to a fully working provider so that .NET applications can be carried wherever people go!
| 19
| 19
|
[
{
"comment_id": "212899",
"author": "tristramoaten",
"timestamp": "2010-11-15T16:02:39",
"content": "I clicked the source link thinking it would be a way to make C# applications portable across Linux and OSX. This is not the case. It’s how to make .net applications portable across different versions of windows.This is why I stay away from .net and desktop apps in total. I don’t care what O/S you run so long as it has a browser :-D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212902",
"author": "svofski",
"timestamp": "2010-11-15T16:15:43",
"content": "eek republic!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212903",
"author": "Mike",
"timestamp": "2010-11-15T16:24:36",
"content": "Just for clarification, it’s really not meant to make .Net apps portable across different versions of Windows (or to port the entire .Net framework to other OSes).It is meant to allow users to carry their application settings along with the executable, rather than being tied to Microsoft’s user settings architecture, while still remaining compliant with said architecture.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212911",
"author": "r_d",
"timestamp": "2010-11-15T16:36:52",
"content": "Does anyone else find the phrase “‘portable’ across all versions of Windows” just a little bit sad?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212915",
"author": "jonah",
"timestamp": "2010-11-15T16:44:40",
"content": "Very nice! It would have been so simple for Microsoft to have done this. Good work Mike @ Geek-Republic!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212918",
"author": "Brad",
"timestamp": "2010-11-15T16:50:46",
"content": "If your comment is simply “Booooo. Lame. Microsoft iz teh devil.” please keep it to yourself. If, however, you have something constructive to add, please do so.Regarding the library, that will be going on my .NET tool belt. Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212941",
"author": "therian",
"timestamp": "2010-11-15T17:50:54",
"content": "portable’ across all versions of Windows. : D I just shit myself a little",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212948",
"author": "Don",
"timestamp": "2010-11-15T18:04:56",
"content": "@tristramoatenIf you want to run C# applications on Linux and OSX you should look into the Mono framework.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212955",
"author": "Ben Ryves",
"timestamp": "2010-11-15T18:21:40",
"content": "I’ve often grumbled that overloading the word “portable” was a bad idea, and the confusion above only reinforces this. This has absolutely nothing to do with software portability, but is about storing the application’s .config file in the same directory as the executable, presumably so you can run the software from writeable removable storage and take the settings around with you rather than have them stored in your user profile.Given that most applications install in Program Files and won’t be able to write to their own directory (not to mention that most apps would want to maintain different settings per user, and/or store those settings in a roaming profile) I think Microsoft’s implementation is a good one for the general case. I’m not sure why the author rags on Microsoft so much as it’s relatively straightforward to write your own provider if you want to go against the “correct” way to store settings on Windows.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212960",
"author": "therian",
"timestamp": "2010-11-15T18:34:00",
"content": "HAD you should put a warning on hilarious posts, now I have to skip a lecture and go home for a change",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212965",
"author": "Scott Cowan",
"timestamp": "2010-11-15T18:44:03",
"content": "In summary, when you write a .net app save files in the path of the Executing Assembly or it’ll end up in some weird folder in your user dir",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212968",
"author": "Necromant",
"timestamp": "2010-11-15T18:57:26",
"content": "Wow… .net is not even portable between different versions of windoze… Hint: use QT",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212990",
"author": "DarkFader",
"timestamp": "2010-11-15T19:49:38",
"content": "I was amazed how ‘useless’ settings were stored normally. The executable path, version, instance all are part of the so called evidence that needs to match. No fun when updating versions or debugging.So then I tried the (non-portable) RegistrySettingsProvider example from MS$, then an improved version by someone else with some tweaks of my own (null & SerializedValue handling).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213192",
"author": "Jason",
"timestamp": "2010-11-16T03:17:58",
"content": "Names like “Geek Republic” are ridiculous.http://www.stealth-x.com/articles/why-i-hate-nerds.phpTL;DR: “Geek” is a stereotypical nightmare for hackers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213358",
"author": "Jason Y",
"timestamp": "2010-11-16T13:05:52",
"content": "Where does the link say anything about making a C# apps portable across versions of Windows? C# targets .NET, which indeed _is_ compatible across versions of Windows.It also has nothing to do with C# except that the hack given uses code “reuse” via copy-and-paste.Instead, the link gives a way to have a single configuration for multiple apps or instances of an app. Usually, this is _bad_.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213374",
"author": "Jason Y",
"timestamp": "2010-11-16T13:07:27",
"content": "“Making a C# application to be completely portable across all windows computers is a problem that Microsoft knows about and willingly admits they will not fix.”What is your reference? This is _not_ in the given link.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213396",
"author": "Frank",
"timestamp": "2010-11-16T15:00:19",
"content": "wow, c# isn’t portable between different versions of windows – it’s true ’cause had said so! Seriously, this isn’t a hack, just some sample code. If I was looking for sample code or hints and tips, I’d be reading stackoverflow.com and the like, not had. Doing those coding primers is one thing, but this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213429",
"author": "r_d",
"timestamp": "2010-11-16T16:45:26",
"content": "@Jason:First off, any site which starts off with “subject/hobby ‘x’ was so much easier before I got into it and I am a genius for knowing what I know today” is likely not worth reading. These things do not get easier or more difficult. We can do more simply because we build upon the effort of our predecessors, not because we are more intelligent or exert more effort.Second, you weaken yourself by feeling offended by such a term. It is best to embrace it so that it has no power and prove the stereotype wrong through action. See “Yankee” used before the American revolution and after (sports teams, etc), the use of “ham” for amateur radio operators, and others.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213509",
"author": "Concino",
"timestamp": "2010-11-16T20:05:43",
"content": "Well, anybody who creates commercial level .NET applications already have a library for configuration management. This code is not something significant at all. It’s just another config lib.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.389671
|
||
https://hackaday.com/2010/11/14/breadboarding-ram/
|
Breadboarding RAM
|
Chris Nelson
|
[
"classic hacks"
] |
[
"bjt",
"cmos",
"flip flip-flop",
"latch",
"memory"
] |
If you’ve ever wanted to dive in and take a look at how memory hardware is implemented here is a good example of how to implement some latching circuits with ether
BJT
or
CMOS
transistors. BJTs require biasing resistors which increases the complexity and power consumption when compared to CMOS. If power consumption isn’t an issue you could certainly make some
really fast logic
.
Most modern on chip RAM is made using
SRAM
because it only takes six transistors to implement(vs eight) and is pretty fast. When it comes to density
DRAM
can get one bit of storage by using a single transistor and capacitor(putting the capacitor underneath he transistor can save even more space). All that said, latches and flip flops are still a very useful (and common) tool when working with digital circuits.
| 22
| 22
|
[
{
"comment_id": "212479",
"author": "zeropointmodule",
"timestamp": "2010-11-14T21:35:44",
"content": "pretty cool, i remember building transistor based memory on the S-Dec (an early prototyping board)you can also make shift registers this way, single transistor per stage and can clock in data at the speed of the astable stages.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212481",
"author": "Geoff T",
"timestamp": "2010-11-14T21:52:35",
"content": "I remember back to my first electronics course at uni, the lecturer told us that there’d be a trick question in the final exam: “Draw a CMOS transistor”. Every year at least a few people would try to do it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212484",
"author": "Will",
"timestamp": "2010-11-14T22:05:26",
"content": "@zeropointmodule Stargate!!!!!!!!Anyways while it would be cool to build ram hacking preexisting hardware is funner",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212507",
"author": "Tom Hargrave",
"timestamp": "2010-11-14T22:38:42",
"content": "Interesting project but where’s the schematic?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212508",
"author": "spiritplumber",
"timestamp": "2010-11-14T22:46:38",
"content": "I really love these hacks — it’s a way to connect “stuff I can build on a breadboard” with “stuff I use every day at work”. Too many people think consumer products = magic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212647",
"author": "matt",
"timestamp": "2010-11-15T02:23:13",
"content": "“stone knives and bearskins”/oblig",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212652",
"author": "Richard",
"timestamp": "2010-11-15T02:40:20",
"content": "Geoff T, My digital lecturer did that too, also draw a biCMOS transistor :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212653",
"author": "Chuckt",
"timestamp": "2010-11-15T02:40:32",
"content": "Tom, I guess you have to click on the links that lead to the Wikipedia site for a schematic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212678",
"author": "laohu",
"timestamp": "2010-11-15T04:09:03",
"content": "We just covered this in class last week, and I busted out the breadboard to try it. Perfect Timing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212689",
"author": "Scott",
"timestamp": "2010-11-15T04:19:41",
"content": "This reminds me of the first “computer” I built in high school – it would add two numbers (set by toggle switches) in .001 second. One of the teachers asked whatever use something like that would be….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212716",
"author": "anon",
"timestamp": "2010-11-15T05:59:51",
"content": "If we know what “CMOS” stands for, what the hell is a “CMOS transistor”???Do we know what we are talking about, or just shooting from the lip?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212767",
"author": "qwerty",
"timestamp": "2010-11-15T07:29:05",
"content": "Very interesting stuff for those who are learning digital electronics. Unfortunately it got ruined by Instructables which is among the worst places one should use. Please, stop posting stuff over there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212824",
"author": "smoker_dave",
"timestamp": "2010-11-15T09:35:33",
"content": "Agreed, Instructables is a terrible web interface.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212828",
"author": "godi",
"timestamp": "2010-11-15T10:01:25",
"content": "@qwerty and smoker_dave:Can any of you suggest a good alternative to Instructables?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212850",
"author": "Hammerhead",
"timestamp": "2010-11-15T11:47:11",
"content": "@godi:1. pick a free webhoster of your choice2. pick an editor of your choice3. write a webpage about the hack you did4. upload it to the webhoster of step 15. spread the address6. ???7. profit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212864",
"author": "Maya Posch",
"timestamp": "2010-11-15T13:01:09",
"content": "Any free blog site would be preferable to Instructables :(Anyway, cool project :) It’s always fun to implement such common circuits in a way which makes it less abstract, akin to those people building 8-bit CPUs out of 74xx logic chips.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212962",
"author": "-HMav",
"timestamp": "2010-11-15T18:35:41",
"content": "@Geoff T and Richard, I’m kind of an electronics newbie, is there something to the joke about drawing CMOS Transistors? I’m missing the “trick” to the question.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213080",
"author": "pfargtl",
"timestamp": "2010-11-15T22:45:13",
"content": "i’m no expert, used to play with this stuff as a kid almost 20 years ago. afaik theres no such thing as a single CMOS transistor, as anything CMOS will be something made up of multiple MOS transistors. atleast thats the way i remember reading it anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213105",
"author": "jethomson",
"timestamp": "2010-11-15T23:41:08",
"content": "The C in CMOS stands for complimentary. CMOS uses both P and N type transistors (MOSFETs) together. Therefore you can’t draw a CMOS transistor because CMOS is composed of multiple transistors. “Draw a CMOS transistor” is akin to saying draw a water atom.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213109",
"author": "jethomson",
"timestamp": "2010-11-15T23:46:23",
"content": "Err, complementary not complimentary. Although 74HC00s are known for their shameless flattery.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213132",
"author": "-HMav",
"timestamp": "2010-11-16T00:43:49",
"content": "Thank’s pfargtl and jethomson, I think I get it. It is similar to a “Darlington transistor” in that it is two parts but one device. Like pants. Though I don’t think “Draw pants” would be a trick question.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "393854",
"author": "mnova",
"timestamp": "2011-05-13T16:39:41",
"content": "Hey what is the input voltage on this circuit?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.021048
|
||
https://hackaday.com/2010/11/14/direct-to-pcb-inkjet-printing-2/
|
Direct To PCB Inkjet Printing
|
Mike Szczys
|
[
"Tool Hacks"
] |
[
"copper clad",
"etch",
"inkjet",
"pcb",
"resist",
"toner"
] |
[Rhys Goodwin] has been working on a system to
print resist onto copper clad using an inkjet
printer. This is a toner transfer alternative as it still uses toner, just not quite as you’d expect. The first step is to modify an inkjet printer, separating the carriage from the feed rollers in order to increase the clearance for the substrate. Instead of printing with etch resistant ink,
as we’ve seen before
, [Rhys] prints with black ink and then covers the board (ink still wet) in laser toner. Once there’s good adhesion he blows off the excess and bakes the board in a sandwich press, with spacers to keep the iron from touching the surface of the copper clad. This cooks the resist into a hard plastic layer and the board is ready for the acid. Watch him walk you through the process after the break.
[Rhys] uses the same method for silk screen, printing in red and baking the ink onto the substrate without added toner. This produces a nice looking board but it’s still quite a bit of work. It certainly sheds more light on the process than that
laser-printer method
from back in May. We hope you’ve been inspired by this and come up with the next innovation that makes this process easier.
[youtube=http://www.youtube.com/watch?v=vHtiRCVfUPM&w=470]
[youtube=http://www.youtube.com/watch?v=vHbzrR5jD6M&w=470]
| 31
| 31
|
[
{
"comment_id": "212403",
"author": "colin",
"timestamp": "2010-11-14T19:25:50",
"content": "Why does he keep saying “we”?Cool method. Takes forever though, it’s like a day job to run a quick PCB with all the preparations!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212408",
"author": "jeremy",
"timestamp": "2010-11-14T19:52:28",
"content": "Eh, I still think it’d be cool to have a plotter style design drawing tool. Just use a good sharpie marker for the pen, I know from at least one case that sharpies work really well as long as you don’t leave the board in the acid tool long.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212411",
"author": "stevevp",
"timestamp": "2010-11-14T20:05:27",
"content": "this isn’t really that great of an option. UV printing is still allot easier and is very inexpensive making it much better then this. on the plus side though i’d think that if you could print a protective coating over your pcb then that would be really neet and would make it look very professional",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212470",
"author": "Abbott",
"timestamp": "2010-11-14T21:20:56",
"content": "Alright, now I’m considering making a pcb laser printer… now to go find an old laser printer…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212472",
"author": "alexei",
"timestamp": "2010-11-14T21:23:58",
"content": "Nice job! Looks great for a very reasonable budget too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212473",
"author": "dmcbeing",
"timestamp": "2010-11-14T21:28:53",
"content": "Hmm,i thought toner was toxic??Nice idea,but imho the classic toner transfer method is simpler.Did anyone got the name of the cadsoftware he uses?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212474",
"author": "biozz",
"timestamp": "2010-11-14T21:30:10",
"content": "i have a canon ip3500 and i have been doing the resistive ink method for a long time and works great as long as you dont smudge it but this method looks so much cheaper",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212477",
"author": "George Ene",
"timestamp": "2010-11-14T21:33:35",
"content": "I may be able to help out with a laser printer.. would a brother hl 2040 do the job?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212480",
"author": "Rhys",
"timestamp": "2010-11-14T21:47:01",
"content": "CAD software is KiCad:http://kicad.sourceforge.net/wiki/index.php/Main_Page",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212489",
"author": "D_",
"timestamp": "2010-11-14T22:10:35",
"content": "@colin; of course “we” is a figure of speech here.Rhys should at the beginning of the first video should say his inability to get Ferric Chloride etchant in ZL is the reason for this he employed this complicated method of making PCBs. Rhys’ blog points to a wep page with content by Adam Seychell, the same page inspired this instructaclehttp://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!–A-better-etc/. I’m no chemist I suspect using all the information available it could be possible to create a Cupric Chloride etchant solution that is not so aggressive to need the etch resist method Rys has devised.IMO all this info should be archived by hackers, in the event Ferric Chloride for some reason becomes unavailable to the them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212666",
"author": "George Johnson",
"timestamp": "2010-11-15T03:08:07",
"content": "Just check out MG Chemicals. They have a nice pre-sensitized board that exposes with regular florescent lamps. You can do double sided, don’t need special lamps or LEDs or anything, just a regular drop lamp.Yes, this is a cool method he’s doing, but seems to be a lot of work, when MG Chemicals is so much easier.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212690",
"author": "medix",
"timestamp": "2010-11-15T04:22:46",
"content": "Minimum trace width with this method?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212711",
"author": "Rhys",
"timestamp": "2010-11-15T05:29:49",
"content": "To be honest I haven’t tested which I know is pretty lame. I will next time I do a board and put the results on the original post. The board on the post is 19mil from memory so not exactly impressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212755",
"author": "tim",
"timestamp": "2010-11-15T06:51:26",
"content": "nice but WHY????it is so simple to print on any transaprent film with any laser printer then to transfer to any pre-sensitised PCB with any UV lamp and develop in seconds with any NaOh available then etch in minutes with HCL+H2O2I can do a complete 1 side pcb in less than 12 minutes !laser print 30sec.cut transparency and adjust on pcb 1min.UV light 2minPhotoresist develop 1minRince 30secEtch 5min",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212823",
"author": "RIUM+",
"timestamp": "2010-11-15T09:32:55",
"content": "Be very careful with laser toner. The average particle size of its dust gets down to the micron level where it doesn’t matter if it’s Carbon or Arsenic, it’ll still cause you harm. People forget about how dangerous small particles can get.If you’re going to try something with laser toner, take some precautions beyond opening a window and using a mask as both probably won’t do much at that micron size. A humidifier, swamp cooler, low-micron HEPA filter or something else. Ionizers actually work well on toner dust but can take time to clear the air.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212833",
"author": "Rhys",
"timestamp": "2010-11-15T10:32:36",
"content": "WHY? Well that is a good question. I guess sometimes we like to buy things off the shelf and use them. Other times we like to hack things up, like old inkjet printers and toner cartridges, things that cost us nothing. Just for fun. And when we do, we come to Hack a Day and share them. ‘We’, the ones who like to hack things. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212836",
"author": "darkore",
"timestamp": "2010-11-15T10:48:55",
"content": "@Rhys, I believe you completely missed the point of Tim’s question. Tim was simply pointing out the fact that there are better ways to DIY something like this, and I completely agree with him. I certainly wouldn’t try to use that dreadful toner dust without very good protection, and without an extremely good reason to do so.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212846",
"author": "Reggie",
"timestamp": "2010-11-15T11:43:41",
"content": "The best method is the one you use.I’m with rhys on this method, I have 3 epson r300s all sitting here, none of them need any adjustment at all to do what rhys is doing, they have a front feeding tray that prints to CD/DVD media. they come with an insert so that you can do business card sized boards, roughly 3.5″x2.5″x1/32″.you can go one better than the ink/toner method and buy a pigment based ink from MIShttp://www.inksupply.com/arcink_mispro.cfmthere is a nice couple of pages on massmind:http://techref.massmind.org/techref/pcb/etch/directinkjetresist.htma 10 cart refill will cost you $18and a dedicated yahoogroup:http://tech.groups.yahoo.com/group/Inkjet_PCB_Construction/just print, bake, etch.If you hunt around there are methods for mixing your own conductive inks and printing the CIRCUIT directly to a blank substrate, I can’t see a laser doing that so easily.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212848",
"author": "Reggie",
"timestamp": "2010-11-15T11:45:12",
"content": "oh and 12mil trace / 10mil gap is easily achievable but if you hunt around on the sites that I have provided I believe they’re down to 3/3 which is pretty tidy in anyones eyes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212849",
"author": "Ivan",
"timestamp": "2010-11-15T11:46:58",
"content": "Hey… after etching and cleaning, you could repeat the first steps of the process (printing/toner/baking) to print additional information on the component side, like component outlines, numbers, etc. Perhaps even yellow toner for this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212852",
"author": "James",
"timestamp": "2010-11-15T12:24:47",
"content": "Most toner material is just polyester resin dust and dyes, nothing particularly nasty at all. Only really a hazard as any dust is if you breath enough of it for long enough. Check the MSDS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212877",
"author": "fartface",
"timestamp": "2010-11-15T14:21:56",
"content": "oh good god, just buy the sheets of blue resist transfer sheets and call it done.. Why do you guys out there waste a week of tinkering to make a convoluted, rube goldberg process that ends up as costly as buying the blue transfer sheets?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212885",
"author": "Alexandre",
"timestamp": "2010-11-15T14:53:07",
"content": "Rhys made a good job! I dream with a conductive ink to use with one print like this… but recently, I have been used the fast pcb resin. It’s photosensitve and I use a simple fluorescent lamp (25W at 15cm above the board) to polymerize the resin. It takes me about 15 minutes. With UV lamp takes it’s more fast… I spread the resin with my finger (without spin the board, i.e., without centrifuge). The result is pretty good:http://www2.ele.ufes.br/~alexandre/pcb/quadrotorboards.htmlThe fast pcb here in Brazil can be order in this site:http://circuitoimpressofacil.com.br/products/Mini-Kit-de-Tintas-Fastpcb-50.html(resin for etching, solder mask and silk)I beliave that in another countries must have similars products like this…Tutorial about fast pcb:http://www.youtube.com/watch?v=J7T1cDK0oGYFast pcb resin for etching:http://www.microtecnet.com.br/tinta-fotografica.htmlFast pcb resin for solder mask:http://www.microtecnet.com.br/mascara-de-solda.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212920",
"author": "Tweeks",
"timestamp": "2010-11-15T16:54:55",
"content": "Hey @Abbott..I don’t think doing toner directly via laser printer (aka “xerography”) will work.. bc xerography relies on a localized static charge to hold the toner in place before/while it gets fused to the paper as it rotates around the drum.1st problem.. you can rotate copper around the drum.. and #2, copper would totally dissipate the static charge and toner wold not form patterns on the surface.Sorry man.. back to the blue iron on. :)Tweeks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212921",
"author": "Tweeks",
"timestamp": "2010-11-15T16:56:40",
"content": "Follow up for @Abbot verifying my statements:http://en.wikipedia.org/wiki/XerographyTweeks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212994",
"author": "keystoneclimber",
"timestamp": "2010-11-15T19:57:41",
"content": "“We hope you’ve been inspired by this and come up with the next innovation that makes this process easier.”Uuuuuuugh… UV?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213039",
"author": "medix",
"timestamp": "2010-11-15T21:26:32",
"content": "Interesting, but I think I’d be more impressed with a laser-printer version that prints directly to the board, seals the toner, and you’re done. Just feed the board in one side, and it comes out the other (hot).But yeah, just use the transfer paper.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213828",
"author": "Ben",
"timestamp": "2010-11-17T12:56:20",
"content": "surplustronics in auckland/nz had ferric chloride last time i was in there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214985",
"author": "Alexandre",
"timestamp": "2010-11-19T13:00:47",
"content": "Another project about direct to pcb inkjet printing:http://techref.massmind.org/techref/pcb/etch/cx4200-vs.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215585",
"author": "Brian",
"timestamp": "2010-11-20T21:45:56",
"content": "amazing home tech , thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6675099",
"author": "Freddy",
"timestamp": "2023-08-23T06:45:36",
"content": "I mod a direct pcb printer in year 2012:https://youtu.be/I_R72hQG0pA",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.091758
|
||
https://hackaday.com/2010/11/14/pulito-the-lego-roomba/
|
Pulito: The LEGO Roomba
|
James Munns
|
[
"Toy Hacks"
] |
[
"flex",
"lego",
"multiplex",
"multiplexor",
"nxt",
"roomba",
"Swiffer"
] |
When [Dave] installed hardwood flooring in his house, he needed a solution to help automate the monotonous task of routine sweeping. Rather than go out and buy one of the many existing automated sweep robots out there, he decided to use his passion for LEGO Robotics to design and build a
NXT based Swifferbot
he calls Pulito. His version implements all the important features such as object avoidance using bump sensors, an IR beacon used to automatically return to the charging station, and a photoresistor to monitor the charge of the battery. [Dave] also includes a nifty
LEGO sensor multiplexor
, allowing him to save on I/O ports, which is almost worth sharing by itself.
Videos after the break.
[youtube=http://www.youtube.com/watch?v=eO9buKXiQe8&w=470 ]
[youtube=http://www.youtube.com/watch?v=UZZhOGgeuts&w=470 ]
[youtube=http://www.youtube.com/watch?v=vjcm1EzqlNY&w=470]
| 12
| 12
|
[
{
"comment_id": "212389",
"author": "heatgap",
"timestamp": "2010-11-14T18:35:18",
"content": "Pretty cool. I guess the cleaning pattern is still a work in progress? I like the charging bumper idea, kick ass work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212391",
"author": "Mitchel",
"timestamp": "2010-11-14T18:39:02",
"content": "wow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212409",
"author": "jeremy",
"timestamp": "2010-11-14T19:56:26",
"content": "I concur with ~heatgap, the charging bumper is a great idea. It could use some kind of cover though so it doesn’t shock anyone or get easily damaged by other stuff bumping into it, like people :P Needs some kind of remote control. Bluetooth anyone?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212493",
"author": "Will",
"timestamp": "2010-11-14T22:13:22",
"content": "Neat cleaning path is bad how well does this clean? I see a beagleboard, kinect and an arduino creating the next generation of roombas, imagine it mapping out and determining the best cleaning path while never hitting pets or humans",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212714",
"author": "Urza",
"timestamp": "2010-11-15T05:57:04",
"content": "Interesting idea with the touch sensor multiplexing, but certainly nothing new. I remember building touch sensor multiplexors for the old Mindstorms RCX around 8 years ago – and I certainly wasn’t the first to do it. Mine was only 4 buttons, but there were ones out there that could do 16 or more, and you could detect any possible combination (this setup can’t). Of course, you had to actually build something for those, since the Mindstorms sensors didn’t have resistors already.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212871",
"author": "blue carbuncle",
"timestamp": "2010-11-15T13:48:12",
"content": "Nice build Dave :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212878",
"author": "fartface",
"timestamp": "2010-11-15T14:26:04",
"content": "@jeremy, if you are getting shocks from 5-12V then you need to see a doctor. He’t not charging it with 240V ac, it’s low voltage.. I’m betting you can lick the charging contacts safely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212933",
"author": "Dave",
"timestamp": "2010-11-15T17:27:55",
"content": "Like @fartface said, the charge bars are only putting out ~12 volts @500 mA max. Ever stuck your tongue on a 9V battery? Not much more of a zilt then that. Wont do anything just by touching them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212945",
"author": "davo1111",
"timestamp": "2010-11-15T17:59:47",
"content": "wow, the charging dock is awesome..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212961",
"author": "sanud002",
"timestamp": "2010-11-15T18:34:18",
"content": "Pretty amazing. I wish mindstorm was a bit more accessible to kids though. I got a set for my kids a while back and they failed miserably with them. My kids have found success with the Rokenbok line of toys though. Maybe these can get them to one day be smart enough to play with mindstorm. If you haven’t seen Rokenbok toys you should cause they are awesome. Really well built too.http://www.rokenbok.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213000",
"author": "Kristeen",
"timestamp": "2010-11-15T20:07:37",
"content": "Hey, my kids use the Rokenbok Power Sweeper to clean up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213201",
"author": "M4CGYV3R",
"timestamp": "2010-11-16T03:58:39",
"content": "Best part of the build was the kickin’ Tiga beat on that third video. Dance, Lego-Roomba! Dance!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.820765
|
||
https://hackaday.com/2010/11/14/renesas-rx-design-contest-110k-of-cash-and-prizes/
|
Renesas RX Design Contest: $110K+ Of Cash And Prizes
|
James Munns
|
[
"contests"
] |
[
"contest",
"design",
"Renesas",
"RTOS",
"rx",
"RX62n",
"uCOS"
] |
It seems that we have caught Design Contest Fever here at Hackaday. After covering some other design contests, and asking readers to send in more, we heard from a couple tippers about
Renesas’ challenge
. Like many of the
other
contests
, entrants can submit their ideas, and possibly receive a free development board to get them started. Unlike the other contests though, Renesas board (possibly) free development board is everything but the kitchen sink. Designed with RTOS’s in mind, rather than the normal microcontroller tasks, this board has an astounding number of capabilities.
On top of the excellent development kit, the contest is also offering books, software, and cash
prizes
to the winners. So get out there, design something amazing, and make Hackaday proud.
| 34
| 34
|
[
{
"comment_id": "212346",
"author": "Life2Death",
"timestamp": "2010-11-14T15:31:24",
"content": "Registered. This thing has almost everything I could ever want in a board. Saweet!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212359",
"author": "M4CGYV3R",
"timestamp": "2010-11-14T16:29:40",
"content": "I would love a chance to play with the board, but I can’t think of anything worth building with it. I’m used to simple circuits with a $5 uC and a few LEDs.Maybe Doppler Direction/Range Finding…? It’s been done already though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212363",
"author": "alankiilan",
"timestamp": "2010-11-14T16:44:15",
"content": "Just a tip: Don’t plug 12 VDC into the +5 jack like I did.I toasted a little 1-bit-wide level shifter for the CAN bus and the USB Host power controller.Removing them got the board working again thankfully.I’ve got to be more careful.But, this board has like 5,000 parts on it and they couldn’t put in a bridge and a 5 Volt regulator so we can use any old wallwart lying around?Still, it was 100% my fault for not readnig the silk.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212374",
"author": "RedBerad",
"timestamp": "2010-11-14T17:16:18",
"content": "i’ve already submitted my abstract. hopefully i can get one. plan is, go with my abstract, and win some money. if all else fails, i have a new platform to play with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212385",
"author": "CutThroughStuffGuy",
"timestamp": "2010-11-14T18:13:52",
"content": "Can anybody elaborate on how this is better than arduinos? It seems more elaborate but how? What is RTOS?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212386",
"author": "Per Jensen",
"timestamp": "2010-11-14T18:16:46",
"content": "Nice, they included a Flux Capactor too!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212392",
"author": "CVMagic",
"timestamp": "2010-11-14T18:53:33",
"content": "@CutThroughStuffGuyRTOS = Real Time Operating SystemThe idea is that with this hardware you can multitask, something without careful programming you can’t do with an arduino.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212393",
"author": "Nicko01",
"timestamp": "2010-11-14T18:53:48",
"content": "CutThroughStuffGuy – You can’t compare this thing to an Arduino. It’s triple the cost, much faster, and has so much more built in. From what I can see in the picture, it has an ethernet connector, two USBs, two audio jacks, an SD card slot, some sort of audio transducer, a potentiometer, several buttons, an LCD, several headers for an additional LCD and various other devices, some kind of serial connecter, a lot of LEDs… plus it has a much more advanced SDK.This is a professional board, not a cheap hobby board for learning to flash LEDs and print “Hello World” over serial.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212455",
"author": "NatureTM",
"timestamp": "2010-11-14T20:27:35",
"content": "All signed up. Thought of a perfect application that will not only be useful but also make use of many of the onboard peripherals.They don’t really give you a lot of room to communicate your idea. Anyone else get to the max character limit and find that you can no longer edit your abstract? It wouldn’t even let me Ctl+C what I had, so I ended up having to retype it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212475",
"author": "Ane",
"timestamp": "2010-11-14T21:32:09",
"content": "“Anyone who is a resident of a country, province or state […] (including without limitation requirements that these Official Rules or other Contest materials be published in a language other than English) including without limitation residents of Puerto Rico and Quebec, Canada, is ineligible to enter the Contest.”Sorry, but that pisses me off. We’re not allowed to participate any f- contest outside Quebec.!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212478",
"author": "Tom",
"timestamp": "2010-11-14T21:35:12",
"content": "I had the exact same problem while I was typing out my abstract. You couldn’t ctrl+c it, but you could rclick to copy, then paste over it.I couldn’t think of a much better use for the board than in my undergrad research at school (phys chem), so I have a feeling my idea is going to end up being more specialized than they’d ideally like. Honestly, though, I’d just be happy with getting the board, even if I don’t have a great chance of winning.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212488",
"author": "AntiMPAAMan",
"timestamp": "2010-11-14T22:08:46",
"content": "If it’s anything like the other Renesas boards then it’s horrible. The code is compiled using a Windows-only environment and it’s only been in the last few years that GCC has been ported to these platforms. Also, the board I was using was supposed to be programmed in ANSI standard C but that turned out not to be the case when using some pre-processor directives.I’m not a fan of Renesas. There are much better platforms out there from the likes of TI, Atmel, and others.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212510",
"author": "slanderer",
"timestamp": "2010-11-14T22:50:42",
"content": "@AneDon’t blame them; Quebec has weird rules wrt contests (probably something regarding the contest not being printed in French)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212516",
"author": "stbtra",
"timestamp": "2010-11-14T23:03:04",
"content": "@CutThroughStuffGuy@Nicko01Don’t mind Nicko01’s condescending comment.It’s just a bit faster and has more features, and a simple OS on top of it to let you run multiple ‘tasks’. Embedded software developers feel threatened by Arduino because they realize it’s not as difficult as they’d like to believe it is ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212574",
"author": "Colin",
"timestamp": "2010-11-14T23:58:27",
"content": "I really hope that they haven’t run out of kits yet. Does anyone know what the status is on this? The latest update I can find is that 809 boards had been given away as of November 9th.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212591",
"author": "Gustibus",
"timestamp": "2010-11-15T01:30:52",
"content": "Might be useful to point out that the free kit is only available in North / South America :-(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212713",
"author": "Will",
"timestamp": "2010-11-15T05:46:59",
"content": "HAHAHAHAHHAH!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212783",
"author": "cantido",
"timestamp": "2010-11-15T08:44:24",
"content": "@AntiMPAAManHuh?>Renesas boards then it’s horrible.Now come on.. Renesas has a ton of architectures.Some from Hitachi, some from Mitsubishi and some from NEC IIRC. The H8 and SH stuff I have is great. It’s a shame the debugging stuff doesn’t work in non-windows environments.. but that’s the same for everything.>The code is compiled using a>Windows-only environment and>it’s only been in the last few>years that GCC has been portedRenesas pay Kpit to develop and support GCC+binutils toolchains for all of their processor lines IIRC. HEW is windows only..but from what I gather Renesas want people to use GCC and not their legacy C compilers.I think H8 support in binutils/GCC is older than AVR or support for any TI platform. And it works really really well.>ANSI standard CANSI C doesn’t have support for processor specific stuff.. that’s what you have inline assembly etc for. GCC has a list of the attributes you need to add to for example make a function into an interrupt handler for each arch.The Renesas compilers had all of this too.>I’m not a fan of Renesas.I guess you had one board… and couldn’t work out how to use it? Couldn’t work out how to use it == Not my fault, bad tools right?>TI, Atmel, and others.And why is Renesas one of if not the biggest MCU supplier? The H8 is an awesome micro if you can get a board for it (hobby boards aren’t seen much outside of Japan), SH was the fastest arch per watt in the world for a long time.. R8C etc are great if you need something on the same level as an AVR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212785",
"author": "cantido",
"timestamp": "2010-11-15T08:59:07",
"content": "@CutThroughStuffGuyThis isn’t an ATmega killer.. this is an ARM killer. The details are pretty limited on the architecture (I was guessing it was going to be a continuation of the SuperH line) unless you can be arsed to read the user manual for the RX62.This chip has tons of general purpose registers, hardware multiply and divide, hardware float instructions, proper DMA controller, USB and Ethernet controllers.. hell, it has a hardware CRC calculator.I guess the reason Renasas are giving away boards is to show people outside of Japan that there is something other than ARM or MIPS. A big problem for a hobbyist using Renesas parts is A: Only places like AkizukiDenshi in Japan sell hobby boards, B: Unless you can read Japanese you won’t have access to all of the example code, howto’s etc that are out there. But… the English user manuals are excellent!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212829",
"author": "WestfW",
"timestamp": "2010-11-15T10:04:06",
"content": "The Renesas stuff mostly pre-dates ARM. As cantido said, they’re a merger of Hitachi, NEC, and Mitsubishi microcontroller lines, All of which has relatively significant followings in certain markets. (but none in most hobbyist oriented markets.) Renesas is sorta holding on against ARM taking over.Comparing to Arduino… If you have to ask how it’s different, you probably need to stick to Arduino. Whatever other features the Renesas products might have, “Easy to use for beginners” is NOT one of them. (They’re probably not any worse than most mcus in the same class, but…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212896",
"author": "M4CGYV3R",
"timestamp": "2010-11-15T15:45:17",
"content": "Whack, the contest form has been actively denying me from registering for almost a day now.It keeps giving me a referrer error. Anyone else see this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212913",
"author": "lwatcdr",
"timestamp": "2010-11-15T16:42:52",
"content": "Dang it I wish I had the spare time. If anybody is board and want some suggestions.1. Autopilot. Add in a GPS, gyros, and a datalink like an XBee and you could have a complete autopilot.2. Automotive infotainment system. Add a GPS ,LCD ,an HD or flash drive and and IDE CD or DVD drive and you have a good start on a automotive infotainment system. I think it does have CAN on it so maybe an entire digital dash.3. Network attached home stereo system.. Okay a bit of over kill for this maybe depending on how bold one gets.4. Low power network monitoring system.5. Robot. Just go nuts maybe even use the kinnect with it.6. Home automation controller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283713",
"author": "Dan",
"timestamp": "2010-12-13T23:45:45",
"content": "I was one of the people who recieved a free board, and it’s all nice, but if you’ve never gone beyond arduino, stick with arduino… It has a header laid out for a character LCD, and silkscreens of the other headers on the bottom of the board, but a complete lack of documentation on how to do much more than what the board does when you plug it into USB…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283778",
"author": "Tom",
"timestamp": "2010-12-14T02:43:43",
"content": "Posting in an ancient thread, but I was the guy who mentioned putting in an abstract regarding the physical chemistry research. Just got my board today. I’d totally forgotten about the contest, I’m stoked to have one to start playing with.We’re going to be working on interfacing it with the various heavy duty instruments around the chem building (Mass, HNMR, IR specs) for remote operation/data collection and transmission. There’s a lot of big modeling projects being worked on in our lab’s beowulf cluster, being able to stay there and get updates from the various instrument rooms in real time would be pretty useful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283834",
"author": "macona",
"timestamp": "2010-12-14T06:15:06",
"content": "My board showed up today as well. Neat board, managed to get the other examples working.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283843",
"author": "Tyler",
"timestamp": "2010-12-14T06:47:33",
"content": "I also got my board today. I got the examples working, fun little thing. I am a bit annoyed that the compiler that came with it only has a 60 day full product evaluation until it gimps itself, but hey, beggars cannot be choosers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283856",
"author": "Spork",
"timestamp": "2010-12-14T07:35:57",
"content": "Mine came too. Can’t wait to play with it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283857",
"author": "Spork",
"timestamp": "2010-12-14T07:38:47",
"content": "@TomInteresting, my entry was about using it as a robotics control platform (that we use to do chemistry) We may have some of the same requirements and should consider working together on some of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "284233",
"author": "cgmark",
"timestamp": "2010-12-14T22:09:36",
"content": "I had forgotten I put in for one of these, fedex knocked at the door and there it was. Very nice kit. Can’t wait to get it going. I started my project using the pic micros and I was banging my head against a pic related issue when fed ex arrived.Excellent timing !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "284376",
"author": "Life2Death",
"timestamp": "2010-12-15T04:23:14",
"content": "I too forgot about this. Assumed I had failed to meet the criteria. Now that its here, I’m impressed that it has more than I thought, and that it runs an OS (that seems closed, so idk) and I’m not sure what my next plans are…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "284596",
"author": "cgmark",
"timestamp": "2010-12-15T16:33:37",
"content": "Anyone else notice some slight corrosion on the ethernet , usb ports area ? I had to clean that area with some alcohol . Not sure what the residue is, if its flux or something it picked up sitting on a shelf.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "284793",
"author": "joes",
"timestamp": "2010-12-16T02:42:16",
"content": "I received mine today as well. Great little board, I’ll be looking more into when christmas is a bit closer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "284850",
"author": "sM10sM20",
"timestamp": "2010-12-16T05:18:43",
"content": "Got an email from admin saying a package had arrived for me on campus, walk down to figure out what it is. See “Renesas” on package, never got an email or anything from them just showed up xD this thing rocks!Thought the LCD display was broken on my board, just had to tighten up the connector, everything is working perfect! Now I just need to get familiar with programming this thing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "290117",
"author": "Allen",
"timestamp": "2010-12-25T05:38:15",
"content": "I just received mine :). Currently downloading the latest software, so I haven’t even fired it up but I’m excited. After working with the stk500 for a long time, it’s great to see all the extras stuffed into this thing. I’m going to try turning it into an accelerometer/temperature/pressure (using an ms5607) logger, with shutter control for a camera, then fly it on a balloon.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.161525
|
||
https://hackaday.com/2010/11/13/debug-mode-lurking-inside-amd-chips/
|
Debug Mode Lurking Inside AMD Chips
|
Mike Szczys
|
[
"computer hacks",
"Security Hacks"
] |
[
"amd",
"debug",
"processor",
"register"
] |
Looks like some hardware enthusiasts have worked out a method to enable debug mode within AMD processors.
The original site
isn’t loading for us, but the text has been
mirrored in this comment
. Getting the chip into debug mode requires access passwords on four control registers. We’ve read through the writeup and it means very little to us but we didn’t pull out a datasheet to help make sense of the registers being manipulated. It shouldn’t be hard to find an old AMD system to try this out on.
We’d love to hear about anything you do
with this debug system.
[via
Slashdot
]
| 50
| 49
|
[
{
"comment_id": "212075",
"author": "biozz",
"timestamp": "2010-11-13T22:34:12",
"content": "nice if you can put up with how crappy amd is XD",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1007244",
"author": "Chloe May Dixon",
"timestamp": "2013-05-23T10:03:13",
"content": "heh, Ah’ll stick ta mah texan born pc ‘muscle’ thanks, yall kin keep yer yankee intel crap ah’d rather run mah phenom955be an’ be a little slower at multitaskin, than pay out $$$ fer some yankee intel crapbox. all may pc parts’re made in the good ol’ south an’ ah like it that way.",
"parent_id": "212075",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "212076",
"author": "Noodle",
"timestamp": "2010-11-13T22:35:11",
"content": "@biozzObvious troll is obvious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212083",
"author": "biozz",
"timestamp": "2010-11-13T22:48:40",
"content": "@Noodletroll? XD nope just someone who used to be stuck with AMD computersnow how about you comment with something related to the post?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212084",
"author": "Digital_Ben",
"timestamp": "2010-11-13T22:50:10",
"content": "I love AMD :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212088",
"author": "Abbott",
"timestamp": "2010-11-13T23:08:58",
"content": "Ok, before we get into a flame war… It all boils down to personal preference.Anyway. Interesting article, not sure how a casual computer programmer/tinkerer would use the debug mode. If I had to guess I would say AMD probably included it for checking of the chips at ship time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212089",
"author": "anon",
"timestamp": "2010-11-13T23:09:48",
"content": "I, for one, am grateful AMD exists. If not, we’d all have to spend $5k on Intel processors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212109",
"author": "darkore",
"timestamp": "2010-11-13T23:19:02",
"content": "What on the Earth is the debug mode anyway? These processors already have extensive debug capabilities.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212112",
"author": "Krazeecain",
"timestamp": "2010-11-13T23:36:12",
"content": "The way I see it, Intel is best for high-end cpu’s, whereas AMD has the best bang for the buck (usually). Also, AMD is MUCH more forgiving when you want to upgrade them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212114",
"author": "xorpunk",
"timestamp": "2010-11-13T23:44:37",
"content": "The pass check doesn’t get pushed onto RAM and executed, so I’m sure AMD is trying to figure out which one of their employees leaked the information..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212115",
"author": "Kit Scuzz",
"timestamp": "2010-11-13T23:48:29",
"content": "I wonder if this will be used to lead to faster cracking on DRM’d things. I could easily imagine this becoming a WILDLY popular method to hack.For example:I know that some encrypted thing which is deleted from memory ends with 0xdeadbeef. Now all I have to do is set the debug point to trip on 0xdeadbeef, which should let the whole decryption routine run, then grab all the bits I want out of memory!And if this is a seeeecret debug mode, does that mean that it won’t look like the processor is in debug mode when it happens? Thus further serving as a function to break DRM?This is very cool! Looking forward to where it leads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212131",
"author": "Kit Scuzz",
"timestamp": "2010-11-13T23:54:37",
"content": "@xorpunk Since this is on the CPU die doing an exhaustive test of all possible passwords would be trivial and incredibly fast. The only information which needed to “leak” was the existence of a password and what register it needed to be in and some approximate information about its effects.… granted all three of those condition would require some people in the know to have leaked *some* info, you have to remember they probably have to give this information to people like Microsoft for kernel debugging in addition to any contractor willing to sign a super-strict NDA. Eventually someone was bound to let the little bit needed out.But for example, this hack was someone just waiting for what the *name* of the registers he already knew about were. There are a ton of debugging features on this chip which are known, but it’s completely unknown what the names and exact functions of these are. That’ll be up to the CPU hackers!Can’t wait to see this implemented in GDB or something similar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212141",
"author": "jeditalian",
"timestamp": "2010-11-14T00:46:30",
"content": "say i want a six-core desktop cpu, 3ghz or higher.. i can go the $800 route (Intel)real tough decision here. so they have half the L3 cache and are 45nm as opposed to 32nm.Thermal design power 125w vs 130w. code name Thuban vs. Gulftown. 6x512kb l2 cache as opposed to 6x256kb or nonexistent l2 cache.$200-$229 vs $879-$1K. i could build a decent computer for that price difference. $650, that’s more than i spent on mine, and i bought a spare processor just in case i cooked the first one. AMD all the way.if AMD had a slogan, it would be FTW.. like E A sports, “get in the game”it would be like: A M D, “For the Win”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212143",
"author": "ehrichweiss",
"timestamp": "2010-11-14T01:06:53",
"content": "The site’s working now(FINALLY) but just in case here’s a cache of the site…http://www.woodmann.com.nyud.net/collaborative/knowledge/index.php/Super-secret_debug_capabilities_of_AMD_processors_!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212146",
"author": "cornelius785",
"timestamp": "2010-11-14T01:38:53",
"content": "Wow, some people are really trying to hard to make this devolve into an all out Intel vs. AMD thread.I don’t see why someone finding the ‘debug’ registers is drawing so much attention. I could be missing something or misintepretting a bunch of stuff, but back in the days of the Pentium Pro, there were debug capabilities built into the processor and Machine Check Architecture. Over the years, I would expect features to grow in both Intel and AMD processors. From my perspective, someone just read a datasheet/whitepaper/appnote/user manual/user guider/etc. and just rediscovered something that was already known. I’ll keep an eye on the original page (when up) to see if my interprettation is way off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212150",
"author": "Swift Geek",
"timestamp": "2010-11-14T01:59:55",
"content": "This news is overdue…http://www.mail-archive.com/coreboot@coreboot.org/msg23187.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212151",
"author": "Ian",
"timestamp": "2010-11-14T02:03:05",
"content": "The actual magic value has been known for a long time, he just figured out what one of the coded MSRs is actually useful for. I could see break on access within a page being useful but I can do the same thing with page flags. Stop talking about amd vs intel, kiddies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212176",
"author": "macw",
"timestamp": "2010-11-14T03:23:33",
"content": "What’s this useful for, and why would AMD password-protect it? Would it allow you to re-enable high-end features that were disabled to down-spec a processor, or something? Does AMD even do that? What do they have to gain by hiding debugging features that would presumably allow developers to write better-optimized code for their architectures?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212180",
"author": "xorpunk",
"timestamp": "2010-11-14T03:37:27",
"content": "@lan: still though either someone spent a long time brute forcing, or an employee leaked it. I doubt anyone chip-hacked an athlon at this level.All these undocumented MSRs(the ones with names) look useless. You can’t use the bebug ones for any current RCE or self-debug DRM(even in ring0). They might work for kernel devs to some capacity.It’s sad no one has even bothered investigating the unknown ones after all these years. There might be a CPUID that can be mapped ^^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212185",
"author": "m1ndtr1p",
"timestamp": "2010-11-14T04:04:25",
"content": "@jeditalianYep, but that 6 Core AMD CPU performs like a low end Intel Quad core… So you really aren’t gaining anything at all…Simply put:If you want the absolute best performance, go Intel, if you just want to brag about having 6 cores in your PC while barely using 4 of those cores, go AMD.You get what you pay for… The same goes with ATI and their video cards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212186",
"author": "Chuckt",
"timestamp": "2010-11-14T04:04:53",
"content": "Here is an entertaining video:Intel vs. AMD – What happens when you remove the fan?http://www.youtube.com/watch?v=hxSqCdT7xPY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212190",
"author": "Tachikoma",
"timestamp": "2010-11-14T04:35:55",
"content": "I love CPU easter eggs. If you have K8, query this:mov eax,8FFFFFFFhcpuidIf you’re lucky, registers eax, ebx, ecx and edx should return “IT’S HAMMER TIME”. Some of the earlier families (K6 I believe) might return other strings.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212191",
"author": "Tachikoma",
"timestamp": "2010-11-14T04:41:52",
"content": "As for Intel vs AMD debates: YAWN. They are as pointless as PC vs Mac debates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212193",
"author": "Chuckt",
"timestamp": "2010-11-14T04:52:57",
"content": "You all put your computers on standby. What happens if the fan fails? The video made me think and I now turn the computer off when I’m going out because I don’t want a fire.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212194",
"author": "Decius",
"timestamp": "2010-11-14T04:53:27",
"content": "@m1ndtr1pExactly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212198",
"author": "Lord Byte",
"timestamp": "2010-11-14T05:18:23",
"content": "So much trolling :) Those pics were RIGHT after Intel incorporated thermal throttling in their cpus, while AMD took a while longer. The thing is that the first Intel Pentium 4 cpu’s were so bad that they would throttle after 5 minutes into a game quartering the frame-rate WITH NO WAY TO TURN OF THERMAL THROTTLING!But ah well, trolls will be trolls, investment fallacy and all that…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212200",
"author": "CazH",
"timestamp": "2010-11-14T05:21:58",
"content": "Chuckt you do see that the newest cpu in that video was a Pentium 4 Northwood? It’s REALLY old, AMD has long ago fixed the problems they had with their thermal diodes. I had a fan fail once on a Athlon XP T-Bred and the application failed after a new fan it ran just fine. Also tried running one with a cpu cooler on at all and it just crashed mid-boot and would power up again and crash when it reach a too high temp…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212201",
"author": "jeditalian",
"timestamp": "2010-11-14T05:35:12",
"content": "@m1ndtr1pso are you saying that if i want a quad-core AMD i should buy a 6 core? i have no use for the extra cores anyway, i would be fine with a dual-core, have a single core from 2005-6 and if i were really going to spend around 200 on a cpu i would get thehttp://www.newegg.com/Product/Product.aspx?Item=N82E16819103727because if the extra cores aren’t going to be taken advantage of, why would go for 6 at 3.2 when i can have 4 at 3.4, which is 1ghz faster than the 1 core i’m currently working with.anyway, i choose whatever’s cheapest, because i don’t make over $1k/week like some people. if non-celeron intel chips were more affordable than an equally/lesser rated non-sempron AMD cpu then i would go intel.i do prefer the feel of any computer with intel inside, with the exception of celeron, but as far as recent cpu’s my experience has only been sempron, turion, celeron, dual-core pentiums, and i3 370m. sempron/celeron=h8 and the one turion i dealt with= fail. dual-core pentium desktop built the same time as mine=better. the pentium and i3 370m laptops were awesome, sempron laptop blew donkeyballs and celeron just blows no matter what.and i still haven’t figured out this debug shit. is this something i do inside or outside of windows/linux? in or out of a motherboard? just skimming over that page i have no idea what’s going on. “If you own a 64-bit AMD processor, please DO check and report any differences.” that’s what i want to do, but there don’t seem to be any instructions for dummies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212203",
"author": "SheeEttin",
"timestamp": "2010-11-14T05:49:17",
"content": "I saw this on Slashdot.From the comments there, apparently you have to enable it at the OS level, i.e. in-kernel.For Linux, that’d be trivial (write and load a kernel module), but I don’t know if you can do that on Windows. (Probably.)As for what it’s good for: probably not much. Apparently it’s for debugging the CPU/microcode itself, not what’s running on it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212221",
"author": "m1ndtr1p",
"timestamp": "2010-11-14T07:04:52",
"content": "@jeditalianUse whatever you need, I was merely speaking in terms of pure performance… If a dual core is all you need then that’s what you should get. But as it stands, not many applications are able to fully use 6 cores, hell most have a hard time fully using 4, gaming is the same thing, while some game do take advantage of 4 cores, the majority of the time they’re only 25%-50% stressed so you’re really only using 2 cores max even though it shows all 4 cores being used…As far as pure speed (IE: Ghz) is concerned, you can’t compare Intel’s clocks speed to AMD’s as they’re both different architectures, it would take a 3.4 Ghz AMD CPU to compete with a 2.6 – 2.8 Ghz Intel CPU using the same amount of cores (on average, depending on the processor obviously)… But like I said, if a dual core is more then enough for whatever you use your PC for, a quad core or 6 core CPU would be way overkill.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212225",
"author": "Will",
"timestamp": "2010-11-14T07:24:42",
"content": "Can we get back on track?Anyways if I understand correctly it is a feature included in their chip but is not part of the standard x86 arcitecture. Therefore I conclude the reason they have not made it open as they would be creating a new processor arcitecture and standard x86 operating systems couldnt access it, so they put it in thinking one day someone will crack it and use the added function. But I see no use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212230",
"author": "t&p",
"timestamp": "2010-11-14T08:09:54",
"content": "That makes sense. Options that are nonstandard are unsupported. If it’s password protected, then they don’t have to worry about people asking questions and trying to support it when its original purpose is in house only that the engineers used.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212233",
"author": "t&p",
"timestamp": "2010-11-14T08:27:23",
"content": "to addthere may have been more debug features like this during the prototype stage in developing the chipwith the final revision with just a few of these features to debug it and make sure that it works correctly before they ship it out.It works good then start mass producing.There is no need to debug it any further.They are selling you a CPU to use to process software and not to debug the chip.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212242",
"author": "jackonapsp938",
"timestamp": "2010-11-14T09:03:17",
"content": "lol it works for me the link i mean",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212245",
"author": "Whatnot",
"timestamp": "2010-11-14T09:15:27",
"content": "I saw a (TED talk I think it was) video and it was explained that ALL chips/CPU’s basically have debug stuff, it’s the only way to test them really, but some companies try various ways to disable it before shipping but it’s always there, and yes also in final released versions since it’s in the design and on the die and you can’t wish that away nor do you want to, it’s part of the whole process of making and designing chips.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212263",
"author": "Avaviel",
"timestamp": "2010-11-14T10:19:56",
"content": "The question I’d like answered: What is the use to be able to debug the chip?Please forgive me, I’m the kind of hacker who makes simple products work like much more expensive ones, not deep hardware as this is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212267",
"author": "Tachikoma",
"timestamp": "2010-11-14T10:41:46",
"content": "@Avaviel: I doubt very much these debug facilities will be able to unlock performance features in the chip… although, you never know, as some of the debug features are undocumented. For the moment we can only assume that the feature is most likely used for in-house verification purposes, possibly a way to diagnose design problems, internal monitoring subsystems, and so on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212289",
"author": "MrX",
"timestamp": "2010-11-14T12:11:26",
"content": "STFU with the Intel vs AMD stuff, fucking n00bs.On-topic: I don’t see how this might be useful to us. I mean, why would I want to debug the silicon/microcode? But it might be really useful for people trying to find vulnerabilities in these CPUs or people reverse-engineering them – say Intel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212483",
"author": "Will",
"timestamp": "2010-11-14T22:01:07",
"content": "@t&p that would make sense but in that case this would be useless and I would think it would cost a significant amount of money to incorporate this in so why would they not just remove this? Unless they left it in to see what would be wrong with a returned chip because it apparently didn’t work. Either way unless it aids in development of new software or hardware we probably should forget about it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212569",
"author": "Mike",
"timestamp": "2010-11-14T23:36:08",
"content": "This seems like a clear-cut way to defeat personal encryption on a hardware level (as others have suggested). I wonder if there’s any way to tell if it’s being used already?Mike",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212584",
"author": "jeditalian",
"timestamp": "2010-11-15T00:36:45",
"content": "as for the video- i used to have an athlon xp 2600+, one of those fragile, exposed-die deals. i booted it up using my finger as the heat sink once. you really should try it, gives you superpowers!actually, i did this AFTER breaking the die and BEFORE making it into a keychain. if the die isn’t chipped, i don’t know if you will get the sparks and burnt flesh effect, the rectangle fingerprint tattoo, or the superpowers. it didn’t cook the mobo though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212600",
"author": "t&p",
"timestamp": "2010-11-15T01:52:03",
"content": "@WillIn the post the dude talks about how the 4th debug option is “dangerous” so I guess it can miss your chip up or brick it in the firmware or something. These commands were left in at the last minute for testing the final version. Programmers do this too in many types of software. It is to debug the chip only. These debug commands would not be great to test software. They are nothing more then just hacks to make sure the product works. It was “passworded” not because it gives info about AMD’s intellectual property, but that you don’t use it because that is not really the function of the chip and you could mess it up. It was just a last minute test.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212623",
"author": "moxlon69",
"timestamp": "2010-11-15T01:55:00",
"content": "Cool that these things are still being discovered. I think that the value of this will wind up being purely academic, ie: no major value in the real world, but I don’t really know much about processors or debugging. Still, these kinds of articles make interesting reading.As far as the debate on which hardware is better, such arguments are purely academic, and childish. Intel chips are better at some things, AMD chips are better at some things. Same with ATI & Nvidia GPU’s.. You can continue that argument with PC vs. Mac, XBOX vs. PS3, iPhone vs. Android vs. Blackberry.. hell, any consumer product will fall into this category. The simple sad fact that almost everyone seems to miss, is that you already know which product is better, but it’s not necessarily better for everyone. Every end user has his or her own specific needs or wants, and the different products fill those different roles.Anyone remember the Cyrix line of CPU’s? Enough said.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212786",
"author": "Jose",
"timestamp": "2010-11-15T09:01:04",
"content": "@Moxion69 If I remember correctly Cyrix was bought (?) by via which continues to produce x86 CPUs.Could this possibly be used to change the microcode of the CPU?HAD can you guys do a follow up on this once more information becomes available.Anyone know of features like this for Intel CPUs?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212840",
"author": "strider_mt2k",
"timestamp": "2010-11-15T10:54:35",
"content": "Interesting info.The comments reek of douchery but the subject is great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212872",
"author": "Xb0xGuru",
"timestamp": "2010-11-15T13:48:52",
"content": "Would all the Intel > AMD trolls put their e-penises away please? I’m having a hard enough time preventing myself from laughing at your comments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212875",
"author": "bodger",
"timestamp": "2010-11-15T14:14:30",
"content": "Knowledge is power.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213082",
"author": "DerAxeman",
"timestamp": "2010-11-15T22:48:35",
"content": "One thing to note is these registers possibly may be intended to be used to patch the silicon or possibly useful for doing something similar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215184",
"author": "Nighthawk",
"timestamp": "2010-11-20T01:37:40",
"content": "A CPU debug mode might be needed to debug CPU microcode. So I think it will be possible to execute microcode stepwise and read respectively change the stati of internal calculation units while CPU debug mode is enabled. AMD would not keep those internals secret if there is no possibility to misuse them. I am quite sure you can enter ring 0 in debug mode, even if you are not a priviledged user. You could even stop the CPU and change microcode on the flight if you know what you are doing. But don’t expect an easy hack. You will need a lot of knowledge about the internals of the CPU. Without a complete manual hacking the CPU debug mode will be a very complex task. Get a microcode manual first (if there is any in the wild).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219241",
"author": "Will",
"timestamp": "2010-11-26T17:40:50",
"content": "@t&p thats why I said unless it aids in the development it is useless to us. and i missed the 4th option is dangerous, but it probably will just reset the chip to full factory condition(i wonder what that would do anyways) or, as you said, brick it.@Moxion69 i see no academic use even. so the hip has some debug feature. we have absolutley no use or that. well, unless it could aid in hardware problems of the motherboard it is installed on(which is unlikely lol im just coming up with stuff on the go that this could be used for)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.306034
|
||
https://hackaday.com/2010/11/13/final-take-on-the-machine-winners/
|
Final Take On The Machine: Winners
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"challange",
"hackerspace",
"scion",
"take on the machine"
] |
It’s finally here, the
last episode
of Scion’s Take on the Machine with Mitch Altman. In this episode all the teams are given a recap over their success and failures, and the clear winner is placed on top. We’re not ones to spoil the surprise so you’ll just have to click the link and watch to find out.
But lets take a moment to remember each team,
The Transistor
and their live action zombie game.
Crash Space
and their musical building.
Pumping Station: One
and their ice cream maker.
Artisans Asylum
and their breakfast machine. And lastly,
NYC Resistor
and their drink mixing slot machine.
Who’s ready for next season? There isn’t a next season you say? Perhaps a new influx of sponsored hackerspace competitions will spring up, or the whole concept will die out as quickly as it came. Either way, it’s all about the
money
fun and educating experience, right? And that’s all that matters.
[Thanks Deven, sorry you guys didn’t win.]
| 8
| 8
|
[
{
"comment_id": "212081",
"author": "MS3FGX",
"timestamp": "2010-11-13T22:44:13",
"content": "“We’re not ones to spoil the surprise so you’ll just have to click the link and watch to find out.”That’s cute. But if you are going to try and turn HaD into a tech news site, you could at least report the news without being coy. Not everyone reads this site from a device capable of playing the linked video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212256",
"author": "Spork",
"timestamp": "2010-11-14T10:06:38",
"content": "I have to agree with MS3FGX, I wish the winner was posted and perhaps even a small writeup on each of the entries.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212258",
"author": "Spork",
"timestamp": "2010-11-14T10:07:19",
"content": "(Note: I meant small like two sentences, not like a page each.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212277",
"author": "Limey",
"timestamp": "2010-11-14T11:35:28",
"content": "You could have just done the writeup on the winner ‘after the break’ as you always call it, would have saved me alot of time trying to watch a video. Although what I dont get is that is the $3000 in supplies the reward for the winner or were they each given $3000 for participating? I know the latter makes less sense bu thats jsut what I got from the opening :/.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212662",
"author": "d3c4f",
"timestamp": "2010-11-15T03:05:29",
"content": "The $3000 was given to each hackerspace; $1500 up front and $1500 a couple months later. There was no prize for ‘winning’ other then the title. Hope that clears things up a little.I think most of the hackerspaces used $1500, or a portion of that on the project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213108",
"author": "Matt",
"timestamp": "2010-11-15T23:45:44",
"content": "Yeah but the real question was… did people enjoy the contest? The videos?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213148",
"author": "d3c4f",
"timestamp": "2010-11-16T01:16:02",
"content": "I really enjoyed the videos / projects. I think that the challenge really limited the creativity of the hackerspaces. Either the challenge should have left off the ‘Must reference a major motion picture’, or it should have been much more constrained. Seamed like lazy / last minute planning to me.If the challenge would have presented a specific problem (I think) the solutions would have better utilized the creativity of the different hackerspaces. On the other hand, if it was more open I think that each space would have focused more on what the members do well and we would have seen much crazier / technical projects.I think it went to a place where the hackerspaces didn’t know whether to start looking for a project with a movie or start with a specific problem. I feel like a lot was lost in that process.Again, that’s just my opinion. Overall I am pleased with the projects and hackerspaces that participated.P.S. While Mitch does have insane hair he is also an insanely awesome guy. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216388",
"author": "krux",
"timestamp": "2010-11-22T12:04:37",
"content": "Vimby usually doesn’t work for me. Would be nice to know who actually won this.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.352702
|
||
https://hackaday.com/2010/11/13/kinect-and-tisch-combined-for-multitouch/
|
Kinect And TISCH Combined For Multitouch
|
Mike Szczys
|
[
"Kinect hacks",
"Multitouch Hacks"
] |
[
"Kinect",
"libtisch",
"minority report",
"tisch"
] |
[Florian] sent a link to
his proof of concept
in creating a multitouch display using the Kinect. He’s the one behind
the libTISCH multitouch package
and that’s what he used to get this working along with the
recently released Kinect drivers
. He did this on an Ubuntu machine and, although it’s not a turnkey solution he was kind enough to share some rough directions on accomplishing it yourself. Join us after the break for his instructions and some embedded video.
Here’s what [Florian] said when we asked if he could walk us through how to replicate his work:
I’ll try, but it’s really a hack :-) You’ll need
– Ubuntu 10.10
– a Kinect (surprise :-)
– the OpenKinect driver from
https://github.com/OpenKinect/openkinect
– go to directory openkinect/c/
– edit lib/CMakeLists.txt so it says “add_library (freenect SHARED ..”
– run “cmake .”
– run “make”
– the TISCH library, 1.1 branch
– svn co
https://tisch.svn.sourceforge.net/svnroot/tisch/libtisch-1.1
– compile with something like:
CFLAGS=-I/foobar/openkinect/c/include \
LDFLAGS=”-L/foobar/openkinect/c/lib -lfreenect” \
make install
– go to the libtisch-1.1/build/bin directory
– run “export LD_LIBRARY_PATH=../lib/”
– run “./touchd -Vf”
– if it doesn’t work at first try, edit ~/.tisch.touchd
– in the line with the resolution (line 5), change to something like
“640 480 30 5 127 8 255 0”
– play with the ~/.tisch.touchd settings file (I’m aware it’s quite
horrible, the format is somewhat documented here:
http://sourceforge.net/apps/mediawiki/tisch/index.php?title=Touchd_config
).
Heh, now that I read that, I’m surprised it worked at all :-)
Florian
Your results may vary so please leave any tips you have on getting this up and running in the comments below.
[youtube=http://www.youtube.com/watch?v=ho6Yhz21BJI&w=470]
| 20
| 20
|
[
{
"comment_id": "212035",
"author": "Tom",
"timestamp": "2010-11-13T20:26:08",
"content": "Haha “Tisch” means table in germen :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212067",
"author": "Krazeecain",
"timestamp": "2010-11-13T21:59:14",
"content": "I wonder if the kinect could be used to make a 3D scanner…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212136",
"author": "kislev",
"timestamp": "2010-11-14T00:18:48",
"content": "someone said “minority report”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212147",
"author": "Paddy",
"timestamp": "2010-11-14T01:43:05",
"content": "“I wonder if the kinect could be used to make a 3D scanner…Posted at 1:59 pm on Nov 13th, 2010 by Krazeecain”The kinect is a 3d scanner, a 4d scanner in fact!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212178",
"author": "Cyberteque",
"timestamp": "2010-11-14T03:27:13",
"content": "This looks great, but couldn’t openCV be used to create an interface like this?Don’t get me wrong, I appreciate anyone sticking it up bill, but to use this interface we still gotta give Micro$oft our bucks for the Kinect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212187",
"author": "baobrien",
"timestamp": "2010-11-14T04:05:44",
"content": "@Cyberteque I was just thinking that. You could use light pens and a projector/big tv to get a similar effect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212188",
"author": "baobrien",
"timestamp": "2010-11-14T04:06:08",
"content": "But, other than that, this is a great use for the newly hacked device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212226",
"author": "Will",
"timestamp": "2010-11-14T07:28:39",
"content": "the point is to create a simple multitouch screen with easy to obtain components( in this case a kinect and various software )this is a good hack no matter how much overkill it is.REALLY OVERKILL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212654",
"author": "gihad",
"timestamp": "2010-11-15T02:43:14",
"content": "Anyone followed the instructions and got it to work ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212695",
"author": "Pacman",
"timestamp": "2010-11-15T04:49:29",
"content": "M$ kinect is a spy tool at M$ disposial, in half the worlds homes…………… hmmmmm…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213313",
"author": "shaun",
"timestamp": "2010-11-16T09:09:07",
"content": "I gave this a good effort but so far no luck, I was able to get Marvin aka marcan’s code running to pick up the camera by itself. The road bumps I hit with trying to run the instructions above were 1 not quite understanding the part about editing, I just added shared before the other options that were on that line, I was able to get everything to compile it seems so I assume that was right, then like ususal when copying things out of web-pages the quotes get messed up so for the LDFLAGS I had to replace the quotes and of course correct the foobar path. Next one I hit was the libfreenect.so wasn’t in the lib folder of the tisch directory so I copied it in there then everything was able to be built. Upon running the final lines I get this:shaun@shaun-laptop:~/Kinect/libtisch-1.1.2/build/bin$ ./touchd -Vftouchd – libTISCH 1.1 image processing layer(c) 2008 by Florian EchtlerCaught runtime exception:Error: unknown camera type requested.Cleaning up.. done. Goodbye.I tried modifying the settings file as specified, but so far no luck same message, I will try to reach out to Florian possibly tomorrow if I can’t get this to work out and see if he can offer any advice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213330",
"author": "shaun",
"timestamp": "2010-11-16T10:57:10",
"content": "Hmm okay finally got it running I just commented out the section where it’s checking for the camera type against a constant, not sure why that wasn’t coming through as true but creating the KinectImageSource without doing the check worked out okay. Ultimately I also had to run sudo -s before doing the export for LD_LIBRARY_PATH and ultimately for running ./touchd -Vf I believe due to the fact that the underlying libfreenect.so needs access to the USB port. The only other thing to note that I left out earlier was that the LDFLAGS assignment was a bit wrong I had to add /build into mine to get it to a path where it could resolve everything. So far just lots of random spots being detected I’m not sure exactly how this is supposed to work in the first place though so I’ll have to do some more digging around. Giving up for the late late night and will give it all another crack tomorrow, if I don’t get this going by then I may abandon ship and start looking into porting marcan’s work into Java as I’m more comfortable there and then start looking into using inverse kinematics to solve arms/legs (assuming I can pretty easily detect the torso and from there find the extremities to the hands and feet although I’m sure this is no easy task). Either way thanks for putting this out there super excited about all of this, I really feel the system could be better if a room were just rigged with a few camera’s in the corners rather than a couple bunched together in one spot but for what it is this is pretty sweet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213908",
"author": "Nathan",
"timestamp": "2010-11-17T17:56:32",
"content": "I got everything compiled, but get a runtime exception when running ./touchd -Vf“open(/dev/video0): No such file or directory”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213958",
"author": "Nathan",
"timestamp": "2010-11-17T19:01:47",
"content": "Florian mentioned that it’s most likely that lib/simplecv does not contain KinectImageSource.o, which is true in my case. I follow the instructions above to the letter from above, and it compiled fine. I am not seeing any indication during make of it even attempting to compile KinectImageSource. I will investigate further and report back.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214261",
"author": "MB",
"timestamp": "2010-11-18T07:39:53",
"content": "Can Micro$oft still spy on you with the kinect?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215713",
"author": "SomeDude",
"timestamp": "2010-11-21T04:28:33",
"content": "This might be a stupid question, but how do you connect the actual kinect to your computer?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216383",
"author": "AT",
"timestamp": "2010-11-22T11:51:43",
"content": "Hello, thanks for posting this.Did you ever find out what the error message“open(/dev/video0): No such file or directory”was about?I also tried what Shaun talked about and removed all the checks against constants from camera.cc but still no joy.I look forward to have TISC working on my box with Kinect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "220635",
"author": "Ryan",
"timestamp": "2010-11-29T06:48:15",
"content": "Anyone figure out the open(/dev/video0): No such file or director issue. I am trying to get this to run, using the directions above, however it seems no matter what I do running touchd shows the “open(/dev/video0): No such file or directory” error. In my case lib/simplecv does contain the KinectImageSource.o file.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "224940",
"author": "Steven Mansour",
"timestamp": "2010-12-01T03:39:24",
"content": "Not a noob to Linux but a semi-noob to compiling, I can’t seem to get tisch installed properly with Kinect support.1) I compile openkinect from source but I don’t understand:“edit lib/CMakeLists.txt so it says “add_library (freenect SHARED ..”; I continue on anyways because glview seems to work fine afterwards.2) I also don’t get what the cflags and ldflags are referring to; my openkinect source is in ~/libfreenect, but there is no c/lib folder?3) Compiling anyways without those flags and running touchd -Vf just gives me a b&w webcam feed from my laptop’s built-in webcam.4) Finally, no ~/.tisch.touchd config file is created automatically; I assume I have to create it myself?If anyone can post a step-by-step install of what they did to get this working, I’d be extremely grateful for any help!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "298767",
"author": "Michael Hoffman",
"timestamp": "2011-01-07T23:34:58",
"content": "@SomeDudethe trick to getting it to connect is to get a cable from microsoft that is used with older XBoxs. It’s not that noobish a question because it is a little difficult to find the information or the part.http://store.microsoft.com/microsoft/Kinect-Sensor-Power-Supply/product/9A4CFC08Still working on getting this to work myself",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,334.965591
|
||
https://hackaday.com/2010/11/13/lots-of-spinning-pov-goodness/
|
Lots Of Spinning POV Goodness
|
Mike Szczys
|
[
"LED Hacks"
] |
[
"excel",
"persistence of vision",
"POV",
"spinning display"
] |
[Retrobrad’s]
spinning POV display
has long been our favorite. When it popped up on our radar again this morning we were surprise to see we never ran a feature on it! But now there’s so much more to share. Hit the projects icon at the top of
his page
and you’ll not only get the 8×85 RGB display’s build instructions, but he’s also built a 32×64 pixel spinning display.
Even if you’re not going to make one of these, he explains some pixel-graphics techniques that are useful in other instances. Check out his
video on using spreadsheets for creating the hex arrays
necessary for each frame the 8×85 display. It’s embedded after the break along with demos of the two displays.
[youtube=http://www.youtube.com/watch?v=0f5I2jG72h4&w=470]
[youtube=http://www.youtube.com/watch?v=gklBWwGyreM&w=470]
[youtube=http://www.youtube.com/watch?v=vTCIJILSgBo&w=470]
[via
Hacked Gadgets
]
| 19
| 19
|
[
{
"comment_id": "212013",
"author": "Addidis",
"timestamp": "2010-11-13T19:44:30",
"content": "Nice, probably some of the best graphics Ive seen done on a POV. This has serious consumer product potential. Parents will gladly buy something like this to keep babies entertained with their favorite cartoon characters.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212031",
"author": "element_leader",
"timestamp": "2010-11-13T20:10:21",
"content": "These POVs are making people fat and lazy; when we were kids, we had to spin ourselves around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212032",
"author": "roboman2444",
"timestamp": "2010-11-13T20:20:29",
"content": "it would be awesome if someone could make a driver and program a propeller or something to use one of those as a secondary display for a computer via serial or usb.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212071",
"author": "boris",
"timestamp": "2010-11-13T22:12:26",
"content": "@roboman2444That’s exactly what I was thinking about doing when I saw this. It reminds of the program to use a psp as a second display.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212086",
"author": "RBRat3",
"timestamp": "2010-11-13T23:06:11",
"content": "these POV’s keep getting bigger and bigger, anymore larger I’d be scare shitless something giving out at high RPM’s. Yea I remember having to spin myself LOL.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212177",
"author": "retrobrad",
"timestamp": "2010-11-14T03:26:16",
"content": "Hi everyone and thanks for the comments.I can’t actually claim the last video though, basically because I didn’t make it!I have made a POV display that does everything that the old one does but now only uses one chip (instead of seven)I will upload a video to youtube in the near future.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212182",
"author": "ferdi",
"timestamp": "2010-11-14T03:46:43",
"content": "can i play black ops on it :)just kidding it looks greadthe picter on it looks good for a ledgo on",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212217",
"author": "edonovan",
"timestamp": "2010-11-14T06:39:10",
"content": "This makes me want to do POV. Although, I’d code a bitmap parser instead of using excel/hxd; but that’s mainly because I’m not really a fan of repetition. I’d just code a bitmap parser, instead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212471",
"author": "derwin",
"timestamp": "2010-11-14T21:23:35",
"content": "that last video creeps me out for some reason. there’s just something unsettling about those ancient, badly-drawn pixelated cartoon characters flickering in total silence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212485",
"author": "Hirudinea",
"timestamp": "2010-11-14T22:06:15",
"content": "Next 1024 LED POV, I dare you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212502",
"author": "ferdi",
"timestamp": "2010-11-14T22:33:07",
"content": "1024 led,s its posebal use small led but a hell bit off work",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212524",
"author": "Gdogg",
"timestamp": "2010-11-14T23:23:03",
"content": "Anyone else think it’s hilarious/ridiculous that he has a ‘god page’ on his electronics website?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212572",
"author": "retrobrad",
"timestamp": "2010-11-14T23:50:10",
"content": "@Gdogg why do you think it’s rediculous?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212900",
"author": "PR0CR4571N4T0R",
"timestamp": "2010-11-15T16:04:01",
"content": "I thought the god page was quite fitting, given the subject matter and overall design of the site.Im very eager to see some updates on the 32×64 POV, as ive wanted to build one for about two years nowMaybe think about selling closed-source kits, if youre not ready to share the complete project.Id certainly be interested in making a money order/deposit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213032",
"author": "Gdogg",
"timestamp": "2010-11-15T21:05:48",
"content": "Because there’s no real reason to add ‘controversial’ stuff to a site that has nothing to do with the website. It’s like HaD posting about the book of mormon.Obviously you’re free to do it, it just seems super lame/creepy to include it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213058",
"author": "bancroft",
"timestamp": "2010-11-15T21:41:59",
"content": "i wouldn’t call it controversial. the guy has convictions, it’s his site, so let him put up whatever he wants.if he like cats, then would you object to him having a ‘cats page’? or would that make him creepy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213138",
"author": "retrobrad",
"timestamp": "2010-11-16T00:50:58",
"content": "God has everything to do with electronics since he is the chief designer and creator of everything.I am thankful that Hackaday thought my design was pretty cool and decided to do a write up about it. I think God’s design is pretty cool and decided to do a write up on my site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213446",
"author": "Gdogg",
"timestamp": "2010-11-16T17:21:02",
"content": "@bancroft Yes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213852",
"author": "Tim",
"timestamp": "2010-11-17T14:51:32",
"content": "Good on you Brad.Gdogg, why do you think this is a controversial issue?if people want to read about God, they can read it!if people don’t want to read about God, they don’t have to read it!“We are in the position of a little child entering a huge library filled with books in many languages. The child knows someone must have written those books. It does not know how. It does not understand the languages in which they are written. The child dimly suspects a mysterious order in the arrangements of the books, but doesn’t know what it is. That, it seems to me, is the attitude of even the most intelligent human being toward God” – Albert Einstein",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.219191
|
||
https://hackaday.com/2010/11/13/nixie-tubes-live-in-a-cool-box/
|
Nixie Tubes Live In A Cool Box
|
Mike Szczys
|
[
"Arduino Hacks",
"contests"
] |
[
"arduino",
"laser cut",
"nixie tubes",
"ponoko",
"twitter"
] |
This set of four
Nixie tubes display the number of people following bildr
on Twitter. That’s neat; it uses an Arduino and some open source driver boards. But what caught out eye is the enclosure. The image above shows only half, but when assembled it’s a nice little cube that keeps the insides safe. This was laser cut using the
Ponoko service
and kicks off a design contest. Come up with the best idea for using 4 Nixies, their drivers, and $50 worth of Ponoko’s services and they’ll give you the materials to make it happen.
| 8
| 8
|
[
{
"comment_id": "212008",
"author": "metropolis",
"timestamp": "2010-11-13T19:10:43",
"content": "Cool stuff! Now let’s all follow him so he has to add another digit…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212009",
"author": "Alex Rossie",
"timestamp": "2010-11-13T19:18:28",
"content": "Lets get this guy 10k followers…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212043",
"author": "zool",
"timestamp": "2010-11-13T21:00:49",
"content": "i like the case but im wondering why he didn’t just use arduinix",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212046",
"author": "jeditalian",
"timestamp": "2010-11-13T21:07:35",
"content": "lol i was gonna suggest we surpass 9999 to find out what happens",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212142",
"author": "Eirinn",
"timestamp": "2010-11-14T00:57:35",
"content": "@jeditalian but that’s over nine t….ah fck it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212149",
"author": "Jeff",
"timestamp": "2010-11-14T01:50:30",
"content": "Great use of laser cut parts to make a solid block of a case.Please post his twitter handle here so it’ll be easier to get him to 10000!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212248",
"author": "elektrophreak",
"timestamp": "2010-11-14T09:42:30",
"content": "looks lovely!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212522",
"author": "Adam Meyer",
"timestamp": "2010-11-14T23:09:13",
"content": "@bildr <– twitter handle@zool, I tried to use the arduinix but they never responded to my emails and all the kits were sold out.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.396925
|
||
https://hackaday.com/2010/11/16/making-model-rocket-motor-igniters/
|
Making Model Rocket Motor Igniters
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"igniter",
"model",
"motor",
"nichrome",
"paint",
"rocket",
"wire"
] |
[Stephan Jones] has an easy method for
making your own model rocket engine igniter
. The solid state motors used in this hobby consume one igniter with each electrically triggered launch. Whether you’re
making your own motors
or not, this construction technique should prohibit you from every buying an igniter again. The process involves bending some nichrome wire around a paper clip, adding some structural support to the leads using masking tape, and insulating the business end with a quick dip in paint.
Now would be a good time to s
end us your launchpad hacks
. All we’ve seen so far is
a launchpad for water rockets
.
[via
Make
]
| 28
| 28
|
[
{
"comment_id": "213540",
"author": "Patrick",
"timestamp": "2010-11-16T21:05:53",
"content": "Sooo happy its not from instructibles…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213542",
"author": "Chuckt",
"timestamp": "2010-11-16T21:13:50",
"content": "We use to use the old flash bulbs from flash cubes. They would also flash when they went off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213564",
"author": "Derek",
"timestamp": "2010-11-16T21:54:25",
"content": "I saw something somewhere that showed old christmas bulbs used for ignition sources, It involved heating them lightly then breaking off the tip and filling with gun/ black powder and using the leads just like you would with nichrome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213566",
"author": "Jenna Fox",
"timestamp": "2010-11-16T21:58:51",
"content": "I’ve heard of people using small diodes as igniters, on the basis that they get crazy hot when driven over-spec with some short circuit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213568",
"author": "Matt",
"timestamp": "2010-11-16T22:09:37",
"content": "I’ve used steel wool before as an ignition source for other various sorts of fun. It heats up rapidly due to the thin nature of the individual wires and you can even pull and roll a thread out from a larger source.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213569",
"author": "Chris",
"timestamp": "2010-11-16T22:15:24",
"content": "It seems like a lot of HAD topics coincidentally show up right after some related event or discussion elsewhere. Just yesterday a man in Chesco, PA was killed while mixing homemade rocket fuel. A bit odd, yes?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213570",
"author": "autom",
"timestamp": "2010-11-16T22:19:37",
"content": "As a kid, I would take a used igniter, where the thin wire would usually still be attached to at least one side, or I’d supply my own thin wire from a stranded wire from an old toy. I’d fix a match head to that wire, and scotch tape the loose end of the wire back to where it belongs. It was very unreliable, and took a longer button press, but it did get me a few extra shots. I’m sure this, or just about anything, would be more efficient!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213572",
"author": "Wifigod",
"timestamp": "2010-11-16T22:25:46",
"content": "@DerekYou mean like these? :-)http://www.nakka-rocketry.net/igniter.htmlI’ve made tons of these before, once you have the powder made it’s pretty darn simple. Started using them back in high school around 10 years ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213588",
"author": "lwatcdr",
"timestamp": "2010-11-16T23:02:30",
"content": "The solid state motors????Solid fuel yes. Solid propellant yes. Solid state, while it is true they are in a solid state until ignited that is just the wrong term to use!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213595",
"author": "Unknown",
"timestamp": "2010-11-16T23:18:35",
"content": "I use to do it, not for rocketry but just to burn stuff safely, with one match a tiny piece of graphite and the weiring. Pretty primitive but effective. A replacement for the graphite could be a couple filaments from a metal sponge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213600",
"author": "Don",
"timestamp": "2010-11-16T23:41:29",
"content": "I remember Estes Rockets from when I was a Kid growing up back in the 60’s and early 70’s!:) Big Bertha was the Biggest back then. I couldn’t afford Bertha. But I had a couple of nice fast Rockets and one with a parachute for a nice soft landing (on a Roof or in a Tree in my Neighborhood;). My first kit didn’t have a Parachute and it would always break something when it hit the ground on the trip back down. I built my first launching pad from a pice of Pine, an old round leg from a Coffee table or something like that and a Coat Hanger. It worked great until I finally got my Real Launching Pad from Estes!:) It looked allot like the 3 legged ones ones on the site Today. I looked and Estes is still around and on the Internet nowhttp://www.estesrockets.com/. It had big enough clips to hook up to a car battery and that’s how I used it most of the time, since those 6 volt batteries would run down pretty quickly. I didn’t get too serious about my Rocket Hobby, but it was great fun, once in a while:) I got them out again when my kids were growing up and we had allot of fun shooting the of together. I still have the Stuff, somewhere in my Boxes in the Garage. I wonder… well maybe later;)Don",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213604",
"author": "Anonymous",
"timestamp": "2010-11-16T23:46:40",
"content": "@ChrisProbably he was using chlorate based sugar rocket fuel, which is plain stupid IMHO.I had a few mishaps with KNO3/sugar propellant and whenever the the fuel ignited when unconfined, it only burned with lots of smoke.Chlorate mixes tend to explode in the same situation, however.You only have to be careful with nitrate candy fuel if it’s enlosed in a rocket engine, as overpressure can rupture the engine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213650",
"author": "damntech",
"timestamp": "2010-11-17T02:54:17",
"content": "Another thumbs up for steel wool. That’s what I did as a kid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213673",
"author": "mrnutty",
"timestamp": "2010-11-17T04:01:08",
"content": "@Unknown I used to do this with a forward biased 1N914 diode and a match. A 9V battery will get that thing hot in a hurry. When I was a kid you could get a pack of 50 from Rat Shack for $2, which was more worthwhile than trying to solder nichrome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213679",
"author": "Jordan",
"timestamp": "2010-11-17T04:12:03",
"content": "1/8th watt resistors work really well, too. except they tend to stink a bit when the case burns up.personally i would never expend nichrome wire when you can use just about any thin wire at the expense of battery life, but using an SLA rechargeable from a lantern works for weeks without a charge if it’s just zapping little wires.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213707",
"author": "macw",
"timestamp": "2010-11-17T04:58:25",
"content": "You can get spools of thin nichrome wire for very little money. What I used to do was get some heavy insulated copper wire, twist two pieces together on the insulated section, strip two inches off the end of each, and then wrap a half-inch piece of nichrome around the exposed ends. Clip the power onto the other end of the igniter and you’re good to go. You can sand off the soot after a launch and use the heavy wires at least ten or fifteen times, so your total cost is less than a cent of nichrome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213762",
"author": "Wes",
"timestamp": "2010-11-17T08:06:07",
"content": "Why would making one of these “prohibit” me from ever buying one again?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213781",
"author": "Sam",
"timestamp": "2010-11-17T09:29:11",
"content": "Quick and easy version that I did as a kid was some nichrome wire, I think it was $5 for a huge spool out of the back of popular science or something, wrap a bit around the ends of two larger pieces of copper wire. Then I would use a razor blade and make a slit in the end of a paper match and slide the nichrome wire in the slot. Use masking tape to tape the leads on either side of the match.9V battery to the copper leads would heat the nichrome wire and light the match…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213816",
"author": "Glen",
"timestamp": "2010-11-17T11:40:06",
"content": "I use steel wool teased out into a few strands and wrapped around a match head.wires run up opposite sides of the match shank into it and the whole lot is taped up with masking tape.Shove a nice big current through it from something like a 6v Cycle lamp and off it goes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213864",
"author": "Luke",
"timestamp": "2010-11-17T15:32:11",
"content": "With the talk of graphite yesterday, I wonder if a small piece of graphite jammed into the motor, set to go on thermal runaway might work well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213977",
"author": "dcroy",
"timestamp": "2010-11-17T19:38:15",
"content": "I am a little curious to whether or not a moderately high powered laser and a strip of black tape would ignite a rocket engine",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214050",
"author": "Einomies",
"timestamp": "2010-11-17T22:21:51",
"content": "When I was a kid, I sourced something very similiar from an old burned out hair dryer.The way I did it was to take two wires, make a small loop on the end of both, put the wire through the loops and squeeze the loops shut with <5mm of wire between them. Then I put a pinch of black powder on the wire followed by a drop of glue.It would ignite from a single AA battery.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214073",
"author": "Terry",
"timestamp": "2010-11-17T23:31:13",
"content": "The method described here is almost the same as the one Estes used to give out with each ‘tube’ of engines. The difference is the dip in lacquer, which is a great improvement IMHO. The ones I tried to make forty years ago didn’t work so well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214321",
"author": "Me",
"timestamp": "2010-11-18T11:54:05",
"content": "Obligatory: Back in the old days, we just used Impala tail light bulbs… ;-)http://web.archive.org/web/20000817114714/http://www.wagoneers.com/pages/RocketCar/rockit.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214711",
"author": "zeropointmodule",
"timestamp": "2010-11-18T22:28:10",
"content": "tantalum capacitors make quite a nice plume of smoke and glow red hot if reverse biased :-)speaking from personal experience and a 3mm burned area on me protoboard.. and at least one ruined PCB.the ones from old laptop motherboards work well as they are rated at under 5V and 13.8V makes them really really mad and fiery and stuff.Sorta like MOSFETS when you use them on small TC’s and induction heaters but they usually explode rather than commit flambuku.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216460",
"author": "Wesley Groeber",
"timestamp": "2010-11-22T15:55:36",
"content": "Very nice, definitely useful, thanks !, book-marked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "494506",
"author": "Metalchemist",
"timestamp": "2011-10-30T00:08:41",
"content": "What if you made some BP (Black Powder) following all the safety steps.A 75/15/10 mix should work well.75% KNO3 (potassium nitrate)15% superfine charcoal (air-float)10% Sulfurwith 5% dextrin powder (to make it stick)(All of these may be obtained from a pyrotechnics supplier for @ 15.00 +/-)You can find instructions online, or from a pyro supplier. Be careful no sparks, NO smoking and No flames while making BP….DUH !!!!Mix a bit with a 75/25 mix (of water and isopropyl alcohol (rubbing alcohol) It helps the mix dry faster.) till you get a thin pancake batter consistency. Dip the igniter let dry. If you like you can dip in lacquer AFTER it dries.This should give a reliable ignition every time.You can even find kits to make your own model rocket motors from BP or from KNO3 and sucrose. There’s lost of formulas out there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2858079",
"author": "Chuck Tweed",
"timestamp": "2015-12-29T00:39:04",
"content": "When the igniters were used and we didn’t have anything else we would use the wires from a used one. Put a bend in the middle of the wire. Now take a pair of pliers and mash the bend flat. This works almost every time. The only reason it didn’t work was because it wasn’t put into the engine far enough.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.461341
|
||
https://hackaday.com/2010/11/16/paper-touchpad/
|
Paper Touchpad
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"arduino",
"graphite",
"pencil",
"TouchPad",
"voltage divider"
] |
If you don’t mind getting your fingers a little dirty you can
replace your mouse with a piece of paper
. [Dr. West] made this touchpad himself, which measures signals at the corners of the paper using four voltage dividers. The paper has been completely covered with graphite from a pencil (which
we see in hacks
from time to time), making it conductive. The user wears an anti-static strap that grounds their hand, allowing an Arduino to calculate contact points on two axes when a finger completes the circuit. See this controlling a cursor in the video after the break.
[youtube=http://www.youtube.com/watch?v=j3b68vZQyIc&w=470]
| 36
| 34
|
[
{
"comment_id": "213506",
"author": "Spork",
"timestamp": "2010-11-16T20:02:36",
"content": "Couldn’t you do this with a metal window screen and have the same effect?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213507",
"author": "Necromant",
"timestamp": "2010-11-16T20:04:39",
"content": "Hmm… Why not do it a bit more complex?In a a sandwich like that:paper+graphitespaceraluminium foilspacerpaper+graphiteThe divider connections are obvious, but that leaves the fingers clean.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213508",
"author": "BiOzZ",
"timestamp": "2010-11-16T20:05:29",
"content": "if you dont mind having silver fingers this is nice XDquite smart idea and if you can find a material that is as conductive as graphite and does not rub off its quite pricital(sp?)i dont suppose multitouch would work … will it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1538615",
"author": "Heronicola",
"timestamp": "2014-06-01T21:51:18",
"content": "not unless you have multiple capacitive sesors.",
"parent_id": "213508",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "213510",
"author": "Spork",
"timestamp": "2010-11-16T20:06:54",
"content": "You could also use:Window screen (or upside down paper+graphite)Spacer(Conductive metal surface as ground) Like sheet metal or foil.That is so you don’t need a wrist strap for ground.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213512",
"author": "Gdogg",
"timestamp": "2010-11-16T20:10:30",
"content": "@BiOzZ Practical?Multitouch wouldn’t work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213514",
"author": "macegr",
"timestamp": "2010-11-16T20:12:48",
"content": "The hard part is keeping layers spaced apart while allowing them to contact without much pressure. Commercial resistive screens use closely spaced arrays of tiny silicone dots. I’d say the approach above is pretty much the limit of what’s reasonably possible without special materials.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213515",
"author": "jentulman",
"timestamp": "2010-11-16T20:20:21",
"content": "@BiOzZ @Gdogg A thought that springs to mind for a bit of cheapo multitouch on the cheapo touchpad…Seeing as you’re grounding your hand, rig a glove with conductive tips, and then scan/switch through which finger pad is connected to the ground, then you have positioning for each finger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213524",
"author": "Dr. West",
"timestamp": "2010-11-16T20:30:11",
"content": "Just so everyone knows, this hack was kind of a joke. I thought it would be funny to make a ghetto touchpad out of just a pencil and a piece of paper lol. I’m currently working on a slightly more sophisticated version using a rigid surface and dry graphite lubricant as the resistive coating, which doesn’t rub off on your finger.Cheers,West",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213532",
"author": "xeracy",
"timestamp": "2010-11-16T20:38:48",
"content": "@Dr. West – So many things i do are for my own personal enjoyment and have no practical use (kazoo controlled mouse , i’m lookin at you). These projects prove their worth for both education, reference, and as inspiration for bigger and better things. Keep it up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213536",
"author": "roboman2444",
"timestamp": "2010-11-16T20:51:38",
"content": "if he had it attached to a rigid surface, then had some buttons for click)like a laptop trackpad), then the user would be able o ground by just resting a finger or two on the buttons.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213539",
"author": "Casey O'Donnell",
"timestamp": "2010-11-16T21:03:44",
"content": "very nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213551",
"author": "Giorgos",
"timestamp": "2010-11-16T21:50:58",
"content": "i think 3 wires would be enough instead of 4. Its a nice idea though!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213567",
"author": "???",
"timestamp": "2010-11-16T22:08:54",
"content": "impractical but good concept.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213575",
"author": "CRJEEA",
"timestamp": "2010-11-16T22:28:29",
"content": "I’m thinking quantum tunnelling composite mounted behind thin plastic (maybe a multi segment flexible EL display instead to get feedback???)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213580",
"author": "Gdogg",
"timestamp": "2010-11-16T22:43:04",
"content": "@jentulman That is a good idea. Adds a lot of complexity and removes the simplicity of it (since we need a smart touchpad, as always, but also a glove that can tri-state and toggle between ground and high impedance.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213610",
"author": "ferdi",
"timestamp": "2010-11-17T00:06:27",
"content": "mmm next stap make a paper prossesorwiht smool pensel lijns and sandwitch layers off paper ho will bild a 1bit prosesor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213632",
"author": "Andreas",
"timestamp": "2010-11-17T00:59:17",
"content": "Care to post the PDE?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213635",
"author": "Josh C",
"timestamp": "2010-11-17T01:09:42",
"content": "Now that I think how this is done, electrostatic foam one finds IC’s packed in should work as well.It’s measuring a exponential drop in resistance across 4 outputs, so the material has to me kind-of conducive. Metal foil or like would not work. And the foam could be worked so that you could work multiple sides (say in a 2 monitor compiz setup).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213642",
"author": "Sean",
"timestamp": "2010-11-17T02:20:36",
"content": "Teledeltos paper used to be a cleaner way to get a resistive paper:http://electronicdesign.com/article/analog-and-mixed-signal/what-s-all-this-teledeltos-stuff-anyway-12594.aspx",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6295905",
"author": "Athiamaan",
"timestamp": "2020-11-19T17:20:32",
"content": "Thats not available",
"parent_id": "213642",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "213647",
"author": "jbot",
"timestamp": "2010-11-17T02:45:04",
"content": "This was already in my notebook months ago! This is the first time a hack has been posted which I devised but never went through with…Someday I’ll have to actually do some of the things in my notebook…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213719",
"author": "Anon",
"timestamp": "2010-11-17T05:57:22",
"content": "@Josh CI’ve got a piece of electrostatic foam, and it does work on a trackpad.Granted, laptop trackpads are usually capacitive, but I think it would work on a resistive trackpad like this hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213802",
"author": "jacksprat",
"timestamp": "2010-11-17T10:47:00",
"content": "Instead of a finger, why not wire up a pencil or pen to make s stylus?Now you’d have a digitiser instead of a touchpad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213804",
"author": "strider_mt2k",
"timestamp": "2010-11-17T10:59:14",
"content": "…kazoo controlled mouse…-OF COURSE!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213848",
"author": "Einomies",
"timestamp": "2010-11-17T14:31:55",
"content": "Now, use AC and separate two metal layers with a thin sheet of soft insulator. Calculate the change in conductivity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213849",
"author": "Einomies",
"timestamp": "2010-11-17T14:40:53",
"content": "Correction: use a metal top foil and a graphite bottom foil with a uniform resistance, so you can use the same method as this one to calculate where the finger is.If both foils are metal, then all you’ll know is how hard the user pushes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213860",
"author": "none",
"timestamp": "2010-11-17T15:17:34",
"content": "@einomiesand if we sandwitch metal-insulator-metal-insulator-graphite, could we get both pressure and position?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213866",
"author": "Einomies",
"timestamp": "2010-11-17T15:39:17",
"content": "Well, the way I see it all you need is one metal-insulator-resistor sandwich.Because the stack lets through a certain amount of current when it’s idle, so there’s your no touch baseline. When you press on it, the capacitance changes and the current obviously increases.The current is measured from four terminals at the corners, and seeing how much current is going to each terminal in proportion to the others you can calculate the position of the finger.Then, knowing how much current on average is going through the stack, you know how hard it is pressed, or how big an object is pressing it. (Both would have the same effect of increasing the overall current.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213877",
"author": "Harvie.CZ",
"timestamp": "2010-11-17T16:09:43",
"content": "When you have announced that Korg Monotron released it’s schematics i’ve been looking for some know-how to make the resistive ribbon 1-dimension touchpad and this seems nice:http://www.xmedk.be/XMEDK/phycomp/ribbon4.htmi think we can use knowledge from both these projects to make something even better. i just wonder if there is some cheap material that changes it’s resistance when pressed, i just don’t like the idea that there is nothing between two layers of ribbon. i would like to see something flexible so i can be sure that ribbon will not get stucked in contact after few weeks…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213880",
"author": "bunedoggle",
"timestamp": "2010-11-17T16:14:25",
"content": "Brilliant hack. Well done! Making me think about what else can be done with this concept.Keep hacking!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213886",
"author": "Tcepsa",
"timestamp": "2010-11-17T16:33:37",
"content": "Along the lines of the foil-graphite-foil sandwich, you should be able to modify Plusea’s work (soft circuits over on Instructables) for this: replace the graphite with a sheet of Velostat and add a layer of grounded foil (or two sheets of Velostat, maybe: one with the four measurement points and one that is connected to ground). You should be able to get both position (by the relative voltages at each pin) and pressure (by comparing those voltages to an idle baseline).By using two sheets of Velostat and establishing a baseline idle profile, I believe you can eliminate the need for additional spacers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213973",
"author": "tinkermonkey",
"timestamp": "2010-11-17T19:30:06",
"content": "Building a variable resistor using a thin film of graphite really is very old technology. But the interface between the Arduino and the PC is interesting and useful. Tell us more about that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214056",
"author": "meatsneakers",
"timestamp": "2010-11-17T22:28:18",
"content": "Probably works better than the Alps touchpad on my netbook…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "283782",
"author": "Justin M",
"timestamp": "2010-12-14T02:55:46",
"content": "Oh man I was making the almost exact same thing 2 years ago I just wasn’t good enough with electronics and microcontrollers at the time. I was gonna use a screw for the ground (cause im cheap and wanted it quick) but a empty ball point pen if you could ground the tip should work (didn’t want to smudge things but its pretty cool idea with the antistatic strap). I even was gonna use a atmega 168 for the job but I just couldn’t get it to work. I wanted to make something cheaper than buying one of those bamboo tablets that are pretty pricey for drawing stuff. Congrats man and I just wish I would have beat you to it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3022431",
"author": "Justin Yeo (@fat_dog10)",
"timestamp": "2016-05-17T07:53:45",
"content": "hi! I would like to enquire how you made got those equations? What calculations did you do?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.459517
|
||
https://hackaday.com/2010/11/16/how-to-weigh-a-bee-hive/
|
How To Weigh A Bee Hive
|
Mike Szczys
|
[
"green hacks"
] |
[
"beekeeping",
"bees",
"hive",
"luggage",
"scale",
"weigh"
] |
Did you know weighing bee hives was even necessary? Of course it is. Monitoring hive weight can tell a beekeeper a lot about the size of the swarm, their harvesting habits, and the yield they are producing.
We had to cover this hack because it’s a fine piece of engineering. [Trearick]
designed a bee hive scale
that lifts one side of the hive to calculate weight. Using easy to find metal brackets, a hinge, a pulley, and some plywood he built a prying device. The three teeth slip in between the hive and its base and can be separated by squeezing together the plywood handles on the opposite side. This lifts one end of the hive, measuring the force needed to do so using a luggage scale. The readout should be roughly 1/2 the total hive weight. This measurement takes seconds to complete, uses a bulb level on the scale to help ensure consistency, and creates little or no disturbance to our flying friends.
It’s nice to see a
Hymenoptera
hack that helps in giving bees a healthy place to live, instead of
killing wasps
.
| 14
| 13
|
[
{
"comment_id": "213469",
"author": "xeracy",
"timestamp": "2010-11-16T19:06:51",
"content": "What is the most expensive way to feed a zebra?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213471",
"author": "Reaper",
"timestamp": "2010-11-16T19:10:57",
"content": "@xeracy Feed the zebra other zebras. The cost is exponential, until you run out of zebras to feed the zebra.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213491",
"author": "herbicide",
"timestamp": "2010-11-16T19:47:48",
"content": "swarm^Wcolony",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213511",
"author": "",
"timestamp": "2010-11-16T20:07:24",
"content": "JESUS CHRIST THE BEES",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213548",
"author": "Keith Baxter",
"timestamp": "2010-11-16T21:39:57",
"content": "Physics test: does the weight change if you bang on the hive?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213598",
"author": "M4CGYV3R",
"timestamp": "2010-11-16T23:27:07",
"content": "“Very Carefully” is the only thing that came to mind…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213608",
"author": "VoiceOfWisdom",
"timestamp": "2010-11-17T00:01:55",
"content": "@Keith BaxterYes momentarily. The mass however doesn’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213623",
"author": "vonskippy",
"timestamp": "2010-11-17T00:35:20",
"content": "If it’s really important – it should be down in realtime.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213624",
"author": "localroger",
"timestamp": "2010-11-17T00:39:25",
"content": "He is awfully trusting of his bees to build uniform comb; split weigh schemes like this (picking up just one end and multiplying by 2) are usually used only for liquid where you can be sure the product will spread itself out uniformly. Even then they’re not legal for trade. This is a cheap and simple way to get a rough estimate but should not be confused with schemes that would actually return an accurate weight. (hint: pick the whole hive up from an overhead pulley; you only need to get all the legs clear of the ground.)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1058567",
"author": "Glen",
"timestamp": "2013-09-15T01:21:59",
"content": "Ya that would be easy with a sky hook. Just throw it up and hook into a cloud the lift away!",
"parent_id": "213624",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "213761",
"author": "elektrophreak",
"timestamp": "2010-11-17T08:04:37",
"content": "@Reaper hahaanyway, useful post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213770",
"author": "Drone",
"timestamp": "2010-11-17T08:35:37",
"content": "I would think it would be far simpler (and far more accurate) to just put something under the hive that would lift it up slightly and weigh it in the process. Something akin to a light-weight version of a floor jack comes to mind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213776",
"author": "Whatnot",
"timestamp": "2010-11-17T09:18:47",
"content": "Didn’t people keep bees for at least 8000 years without weighing them?I mean simply saying you need to know doesn’t make it automatically true, you can easily see if a swarm is big or small I would guess, and hear too.In fact when going for an estimate how about a sound analysis? You can keep a running mic and filter it for bees frequencies and make a nice graph to see how many are home and how excited they are and what not, that might give novel info not considered before even – having hourly daily monthly and yearly graphs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213805",
"author": "strider_mt2k",
"timestamp": "2010-11-17T11:00:47",
"content": "No sudden movements…(Sorry, old “Cheers” reference.)+2 points if you got it.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.637374
|
||
https://hackaday.com/2010/11/16/dtg-improved-printing-on-t-shirts/
|
DTG: Improved Printing On T-shirts
|
Mike Szczys
|
[
"Wearable Hacks"
] |
[
"direct to garment",
"dtg",
"epson",
"printer",
"r1900"
] |
[Jeff German]
improved upon his DIY direct to garment printer
an ended up with a machine he thinks is equivalent to anything you can buy commercially. We last looked in on this project in June but much has been done since then. Most notably, there are build instructions available (
requires login
). [Jeff’s] printer is based around an Epson R1900 plus the base that holds and feed a garment. Take a look after the break to see it printing full color designs in high resolution. From the YouTube description it sounds like he wants to go into production with this. Kudos to him for also sharing the build techniques.
[youtube=http://www.youtube.com/watch?v=kLlzSXmS7Mk&w=470]
| 21
| 20
|
[
{
"comment_id": "213458",
"author": "Tex©",
"timestamp": "2010-11-16T18:27:49",
"content": "i want one",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213472",
"author": "Ryan",
"timestamp": "2010-11-16T19:11:49",
"content": "Anyone wanna rehost the pdf? I’m interested in seeing how its done but I don’t really want to register and bugmenot doesn’t have them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213484",
"author": "Brad",
"timestamp": "2010-11-16T19:23:48",
"content": "I tried registering, but the sites registration system seems to be jacked. Too bad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213489",
"author": "mrb",
"timestamp": "2010-11-16T19:31:23",
"content": "cool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213494",
"author": "patrice",
"timestamp": "2010-11-16T19:48:59",
"content": "Here’s the PDF for those that care for it:http://dl.dropbox.com/u/8852355/R1900%20CLUE%20BOOK%20VER%202.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213495",
"author": "anon",
"timestamp": "2010-11-16T19:54:30",
"content": "PDF:http://www.filedropper.com/r1900cluebookver2",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2439802",
"author": "NoWay",
"timestamp": "2015-02-15T17:36:07",
"content": "Hey there would you mind to upload this pdf again? Or send it to me per mail?! :)",
"parent_id": "213495",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "213634",
"author": "rizla",
"timestamp": "2010-11-17T01:09:07",
"content": "That is pretty sweet I must say. Kudos man! When i saw the pull out rails. I thought they were server rails. Im wondering if some used server rails would be a bit better since they’re made to be hold a lot more weight than drawers. HP rails have always been pretty smooth and easy to rackmount, as apposed to stupid SUN rails.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213717",
"author": "tech-no-pest",
"timestamp": "2010-11-17T05:56:33",
"content": "awesome… beats the h311 out of silk screening.with the system he has setup for the rails he could print on just about anything…i like it!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213834",
"author": "Chuwei",
"timestamp": "2010-11-17T13:19:20",
"content": "How does he print in white?????There is no white cartridge..http://www.epson.com/cgi-bin/Store/jsp/Product.do?sku=C11C698201",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213861",
"author": "walt",
"timestamp": "2010-11-17T15:26:06",
"content": "“there are build instructions available (requires login)”login for instructions?! that’s almost as bad as instructibles. while the project is pretty cool, any site that locks people out of information is LAAAAME. R.I.P. internet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213871",
"author": "Cinezaster",
"timestamp": "2010-11-17T16:00:58",
"content": "This kind of process can be used for pcb printing. It can print very accurate at any thickness. Rollers can always get stuck or jammed. If it’s good for textile it will work for pcb.Maybe I will make something like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213894",
"author": "Artanis",
"timestamp": "2010-11-17T17:05:41",
"content": "While this is clearly awesome, It would be nice to know other similar printers for which this setup(with some adjustments) would work. The Epson R1900 It’s a really expensive printer and puts this kind of project out of reach for a lot of people.I think that a “base” generic project and community updated “how to use X printer” could be very useful.Anyway, I’ll provably try to adapt Jeff German to use a cheaper printer this christmas if I’m not too busy with college.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213901",
"author": "dave",
"timestamp": "2010-11-17T17:21:38",
"content": "Bad title tho.. While it may be an improvement on Digital t-shirt printing, the title suggest it is an improvement to t-shirt printing in general.until DTG can print foil, puff, glow in the dark, color changing photochromatic,swede, high density, neon, crystalline, metallic and other inks.. or match the durability of screen printing..it’s not improved t-shirt printing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214137",
"author": "jgerman",
"timestamp": "2010-11-18T01:17:34",
"content": "hey guys thanks for the nice words regarding my printer project.. the printer is a r1900 base same as most current commercial model bases!! i worked with the manufacturer to create a custom rip for the off the shelf r1900 printer (no additional firmware) eukondigital (ekrip) it uses four cmyk channels and four white channels or it can be run with dual cmyk!!! you can also run different inks thru this particular head ie eco solvents/solvents..you will need to change out the capping station hoses to accept the different ink.. google direct color systems and you will see they have a 1900 base solvent printer for signs banners etc its called the direct color systems1324.. the printer is about 500 and the rip software is about 800 and the parts to build about 200!!! this is not cheap but is a profesional commercial quailty grade!! In comparison current commercial printers of its equal start at 16,000 and go up from there!!! hope its off some use to many!!!regards",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "418184",
"author": "Howard Pfeifer",
"timestamp": "2011-07-15T23:44:39",
"content": "check out r1900 build without even disconnecting any wires how to fix paperfeed how to get rid of two yellow lights look for plans and complete units soon gauranteed the easiest build around!!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2521415",
"author": "felderz",
"timestamp": "2015-04-10T09:03:31",
"content": "If any is still alive and can send me a copy of the PDF then please help. I am in hong Kong and really do not want to order a Chinese built machine when I could try to build one myself. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2549069",
"author": "Indy",
"timestamp": "2015-05-01T12:15:28",
"content": "http://www.filedropper.com/r1900-clue-book-ver-2-pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2549072",
"author": "Indy",
"timestamp": "2015-05-01T12:21:05",
"content": "and another linkhttp://wikisend.com/download/548570/R1900-CLUE-BOOK-VER-2-pdf.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2678998",
"author": "Brian",
"timestamp": "2015-08-15T02:51:38",
"content": "I need the pdf. None of the links work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2682812",
"author": "Confucius",
"timestamp": "2015-08-18T21:57:04",
"content": "Ditto",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.585766
|
||
https://hackaday.com/2010/11/16/jeri-makes-flexible-el-displays/
|
Jeri Makes Flexible EL Displays
|
Mike Szczys
|
[
"chemistry hacks"
] |
[
"aluminum",
"boric acid",
"el",
"electroluminescent",
"foil",
"jeri ellsworth"
] |
A failed chemistry experiment led [Jeri Ellsworth] to discover
a flexible substrate for electroluminescent displays
. We’re familiar with EL displays on the back of a glass panel like you would find in an audio receiver, but after making a mesh from aluminum foil [Jeri] looked at using the porous metal to host phosphors. She starts by cleaning foil and using a vinyl sticker to resist etching portions of the aluminum. It then goes into a bath of boric acid, electrified with the foil as the anode. As the foil etches she tests the progress by shining a laser through the foil. After this the phosphors are applied to the back surface of the foil, covered in a dielectric, and topped off with a conductive ink that will carry the AC necessary to excite the phosphors. This is layering materials in reverse compared to
her EL PCB experiments
. See [Jeri] explain this herself in the clip after the break.
You can see above that this produces a pretty well-defined display area. It reminds us of that
color changing paint display
. We think it would be worth a try to build a few 7-segment displays using this method.
[via
Instructables
]
| 19
| 19
|
[
{
"comment_id": "213442",
"author": "Caleb Kraft",
"timestamp": "2010-11-16T17:13:53",
"content": "Can someone other than Jeri please do some cool EL and/or chemistry stuff?We love Jeri’s work but we also love diversity!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213444",
"author": "Squirrel",
"timestamp": "2010-11-16T17:14:35",
"content": "Hey!! Her stuck pixel is gone!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213462",
"author": "Sariel",
"timestamp": "2010-11-16T18:46:54",
"content": "@CalebSounds like someone has a bit of penis envy…jkseriously she does really great work, and I wish that someone else out there could think on such a large scale as she does. Fact is though, atm nobody is willing to step up for the task. Most of us, I’m sure, would have threw away the foil from this experiment and thought nothing of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213492",
"author": "Tom Brandt",
"timestamp": "2010-11-16T19:48:29",
"content": "You will get more consistent anodizing if you don’t allow metals like Iron, Copper to touch the Boric acid solution while anodizing. That includes your alligator clips! Metals like Lead and Titanium are used commercially as the cathode material to anodize aluminum. You can also use Sulfuric Acid as the electrolyte (1:1 battery acid:water). The advantage of Boric acid is that it makes a denser (tougher) anodized film. Current density also greater effects the quality of anodizing. The higher the current density, the softer the resulting film.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213493",
"author": "Ken",
"timestamp": "2010-11-16T19:48:55",
"content": "“Instead of considering this a failure I decided to figure out a way to use this…” – Way to be Jeri.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213519",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-16T20:28:25",
"content": "I was shooting for a non-porous oxide barrier, so I chose not to use sulfuric acid. Thanks for the tip about the iron. Maybe that is part of my problem.-Jer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213547",
"author": "Rene",
"timestamp": "2010-11-16T21:35:28",
"content": "Seems like silver mylar might work for this. Flexible, durable, not actually opaque, and very uniform. Apply phosphor w/ a stencil.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213629",
"author": "Roman Dulgarov",
"timestamp": "2010-11-17T00:50:05",
"content": "Hmm I wonder how well this could be applied to vehicle skin. It would probably look like crap unless you flood the entire thing in clear coat but I think it could work. Instead of solid foil the transfer foil could possibly used…gold? Then stencil on the pattern and clear coat it at the end….hmmmmm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213636",
"author": "zzzomb",
"timestamp": "2010-11-17T01:18:46",
"content": "Sadly can’t view the youtube vid from here. Can someone tell me what is used for the phosphor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213640",
"author": "Jeri Ellsworth",
"timestamp": "2010-11-17T02:09:05",
"content": "zzzomb – It’s Dupont Luxprint and you can get it in small quantities from ahttp://sites.google.com/site/elen4193/or you can make your own, but it’s not easy and the results aren’t as bright.http://www.youtube.com/watch?v=pmQqdYrn9g8",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213779",
"author": "Whatnot",
"timestamp": "2010-11-17T09:26:20",
"content": "She should get a roll of clear packing tape, it’s nice and wide and cheap and always handy and available everywhere, beats using several strips of cello tape.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213780",
"author": "Whatnot",
"timestamp": "2010-11-17T09:26:59",
"content": "Or sello tape I should say",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213862",
"author": "walt",
"timestamp": "2010-11-17T15:28:21",
"content": "Jeri? instructables? why??!!!!what’s the point of linking us to that crummy site when all they have, in this case, is a youtube video. for those of you not wanting to touch that joke of a site, here’s the vid:http://www.youtube.com/watch?v=ZmkzrX4T4Ec&feature=player_embedded",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214704",
"author": "zeropointmodule",
"timestamp": "2010-11-18T22:09:30",
"content": "Neat hack jeri :-) i was wondering how to make a front contact which could take a reasonable amount of current.makes sense to use Al foil as it is easy to get hold of.Wonder if the same technique would work with any other materials such as Cu PCB stock?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215698",
"author": "sometechguy",
"timestamp": "2010-11-21T03:07:49",
"content": "Thanks for the excellent video Jeri. Instructables is fine, phooey on the dumb people who complain that their porridge is too cold.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217754",
"author": "j s",
"timestamp": "2010-11-24T16:08:09",
"content": "It’s a chemical hazard display…specifically corrosive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "290367",
"author": "Joe",
"timestamp": "2010-12-25T20:07:06",
"content": "Adding explosion sounds to high fives!ma that’s genius!loved it, tahnks :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "530706",
"author": "hirnlager",
"timestamp": "2011-12-09T08:10:57",
"content": "make small holes with a thin needle? ;)or if you develop a battery to a wire anschlisst and this underlines the aluminum foil over these holes;), sorry for my english i use a translator :/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2472562",
"author": "virendra tambe",
"timestamp": "2015-03-10T11:10:51",
"content": "how much current are you giving to that lamp????",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,335.915958
|
||
https://hackaday.com/2010/11/15/gear-indicator-for-suzuki-motorcycle/
|
Gear Indicator For Suzuki Motorcycle
|
Mike Szczys
|
[
"Transportation Hacks"
] |
[
"8x8",
"ATmega88",
"gear",
"indicator",
"led",
"motorcycle"
] |
This little board serves as
a current gear indicator
for a motorcycle. It was designed with the Suzuki V-Storm motorcycles in mind as they have a sensor built into the gearbox.
Other gear indicators
rely on sensors on the shifters themselves, but reading the voltage level from a gearbox sensor gives much more reliable information.
The voltage measurement is handled by an ATmega88 microcontroller which in turn drives the 8×8 LED display. Also built into the system is a temperature sensor and photoresistor. The firmware takes advantage of both of these inputs, displaying temperature when in sixth gear or at the push of a button, and dimming the display based on ambient light. There are also settings for screen rotation, and user preferences.
We didn’t find schematics or software but this should be pretty easy to replicate. If you need a primer for AVR programming
we’ve got you covered
.
[Thanks Michal]
| 26
| 25
|
[
{
"comment_id": "213136",
"author": "tyco",
"timestamp": "2010-11-16T00:49:24",
"content": "small correction – should be “V-Strom.” Don’t ask me why Suzuki chose this spelling; it’s very typo-prone.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "579344",
"author": "Serge",
"timestamp": "2012-02-09T23:55:08",
"content": "Strom is the German word for “electricity”.This fine motorcycle is built as as much lower cost option to the dual usage BMWs, hence the German word… Best bang for the buck Motorcycle I ever owned :o)",
"parent_id": "213136",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "213137",
"author": "Ken",
"timestamp": "2010-11-16T00:49:51",
"content": "I wish my intruder had a gear indicator. Hard to get too terribly lost with only 5 gears… though I do seem to manage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213139",
"author": "vonskippy",
"timestamp": "2010-11-16T00:52:43",
"content": "Wow, an indicated for what gear you’re in. Perhaps he should make another device to tell all these noob riders what direction is up (can’t be too careful with that one).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213176",
"author": "macw",
"timestamp": "2010-11-16T02:13:47",
"content": "Neat build and it could be really useful for any number of things — directional arrow for a GPS unit, radar detector readout, temperature (as shown), etc — but I don’t see why you actually need a gear indicator. Everyone with more than a few hours of experience in/on a vehicle with manually-shifted gears gets to know instinctively what gear they’re in from the engine sound, the available torque and the current speed. Hell, I can tell what gear I’m in on my bicycle just from the pedal resistance, and individual gears there are less than 10% different from each other.It seems like a useful little generic display but the intended purpose is dubious.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213178",
"author": "biozz",
"timestamp": "2010-11-16T02:16:49",
"content": "id wreck trying to read that while ridingi like how mines set up with a bright blue graphic display so i can take a few short glances to read somethingevery second your eyes are off the road is a second you can hit a car or a car can hit you",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213179",
"author": "Stephen Zuercher",
"timestamp": "2010-11-16T02:24:20",
"content": "why wouldn’t you just use this chip instead for voltage measurements?http://www.national.com/ds/LM/LM3914.pdfI know you don’t need all 10 outputs…but seriously, way over complicated solution if you ask me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213182",
"author": "Ben-G",
"timestamp": "2010-11-16T02:30:01",
"content": "What about the SV650? the engine is amolst the same",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213216",
"author": "FirefighterGeek",
"timestamp": "2010-11-16T04:57:07",
"content": "I don’t see the point. You don’t need to know the gear number. You need to know if you need to shift up, or shift down and you ears should hear that even if your ass doesn’t feel it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213240",
"author": "Abbott",
"timestamp": "2010-11-16T05:35:51",
"content": "It’s quite simple – if the bike is screaming, upshift. If she’s bogging, downshift. I don’t know how much more difficult it can be. The rider should be focused on the road, on the ride, rather than on his gadgets.This probably sounds odd coming from me, as I love technology, but as biozz said, every second off the road…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213273",
"author": "Michael Bradley",
"timestamp": "2010-11-16T06:38:04",
"content": "I can see it as convienence (sp?) I have on occasion, pulled in the clutch, and slowed down, only to not know what gear I am in. But then I just down shift until I cant any more.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213288",
"author": "Ryan",
"timestamp": "2010-11-16T07:18:14",
"content": "Kind of cool build, but ultimately useless for anyone but the most novice of riders, then arguably dangerous for them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213320",
"author": "simon",
"timestamp": "2010-11-16T09:49:30",
"content": "wait…other people on motorcycles actually take their eyes off the road when riding? the only time i EVER look at my gauges is to check whether or not im actually in neutral. and all that is is a little green light.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213322",
"author": "Hackius",
"timestamp": "2010-11-16T10:00:48",
"content": "All you need is a neutral light. Stop looking at the instrument panel when riding!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213323",
"author": "nes",
"timestamp": "2010-11-16T10:09:42",
"content": "My ’79 Suzuki already has this… well a row of seven little lamps along the bottom edge of the instruments. I think it was intended more as a marketing gimmick than a useful rider aide but it looks darn cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213331",
"author": "Whatnot",
"timestamp": "2010-11-16T11:01:55",
"content": "Might be more fun to make it light up some light, maybe on the exhaust, with increasing colortone as you get in higher gear.Or how about a wireless transmitting to a POV display in the wheel with the gearstate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213332",
"author": "Whatnot",
"timestamp": "2010-11-16T11:06:21",
"content": "Addendum: My suggestions might seem overly blingy but you can do these things in a more subdued way too, subtle and yet unique.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213390",
"author": "fartface",
"timestamp": "2010-11-16T14:39:57",
"content": "Any suzuki or yamaha can have this. you simply replace the neutral switch with a switch from one of the higher end models that detect what gear you are in.Did it for several friends, along with replacing the ECM with a racing one from Ingitech.nothing like gutting the ignition computer and replacing it with a programmable one to get more HP out of the engine and racing functions that reduce ET’s by nearly a second.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213391",
"author": "fartface",
"timestamp": "2010-11-16T14:42:49",
"content": "@simon, on my BMW I have a radio, GPS, toaster, Coffee maker, I have to adjust my heated seat and grips as well as the windshield.But then I can ride well into december while the crotch rocket riders shrivel up and die when it rains or temps go below 60.I’ve got a friend that rides all year even in snow. Far bigger balls than most motorcycle riders.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213437",
"author": "bill rowe",
"timestamp": "2010-11-16T17:06:08",
"content": "nice build and not at all useless. I’ve built a few versions of this for my triumph and I find it quite handy – obviously this depends on the bike and the rider.For sure I can tell whether I NEED to shift – that’s not the point. Mine is unobtrusive but in sight so I can tell at a glance if I’m in top gear on the highway for instance.They are also good fun to build and mount, you’re learning about your bike and automotive power environments in general. In my case I wanted to learn interrupts and I was quite pleased at the result handling hundreds of interrupts a second from multiple sources while integrating and displaying the results.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213591",
"author": "lwatcdr",
"timestamp": "2010-11-16T23:10:46",
"content": "Okay folks stop the hating. OEMs put these on bikes so no it isn’t that dumb to want one or that useless.The use mode for this is at start up. Yes you can click down all the way down to first before you start or you can just look and see if you are already in first.Is it necessary?No.Is it useless or dangerous? No.Is it a nice little hack?Yes.Think of it as a starting point if nothing else. Add a GPS, speed sensor, and rev counter and you have a data logger for track day.Really what is it with the hate and critics on here. This is a nice little hack and kind of cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213775",
"author": "BiOzZ",
"timestamp": "2010-11-17T09:16:40",
"content": "@lwatcdrthe equipment in OEM bikes are placed and made with hours of study and research in very persice positions and with displays made for easy recondition where you only need to take your eyes off the road for a second putting some untested hard to read display in a rocket on wheels is not just dangerous but stupidmy bike display comes with a super bright 120X90 blue/white display with very clear and easy to read gear count and speed (i only have it set to display speed) and it came with a large front and back fine print peace of paper saying to use it at your own risk and that it is dangerous … its not an OEM bike its a ground up 1000cc custom crotch rocket but it was put together by professionalsthis device IS dangerous and should only be used by professional riders who know both there bike and the road but any one with more than 12 hours on there bike know what gear your in by the speed and the sound of there enginethe only real use in one is knowing when your in neutralalso while your riding taking any hand off the handlebars for any reason or any period of time is illegal unless you have a (properly named) suicide shifter",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213845",
"author": "Olivier",
"timestamp": "2010-11-17T14:29:07",
"content": "@lwatcdr: it is useless and dangerous.I don’t even understand your explanation : when you start your bike, you’re probably in neutral and most (maybe all ?) bikes have a light to show you’re in neutral.So there’s no point in this kind of display.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214043",
"author": "Don",
"timestamp": "2010-11-17T22:01:48",
"content": "My 1975 Suzuki GT-380 has a factory-installed LED gear indicator digit that works just fine even in bright sun (it’s red of course). I just figured it’s a step up from a neutral light (early example of feeping creaturism), but really there isn’t much benefit to it, though sometimes you can see where you are after a sudden stop from a high gear when you haven’t had a chance to gear down (thee GT is a 6-speed).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214430",
"author": "Alan",
"timestamp": "2010-11-18T17:16:14",
"content": "<3 vehicle display hacks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2792627",
"author": "Marek",
"timestamp": "2015-11-12T17:09:49",
"content": "Hello,Can you provide me voltages per everry gear? Because I have measured voltages per mine at these were mili Voltages from 50 mV to 170 mV and 190 mV for neutral.Best Regards",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.212249
|
||
https://hackaday.com/2010/11/15/playing-hacker-with-a-toy-vault/
|
Playing Hacker With A Toy Vault
|
Mike Szczys
|
[
"Toy Hacks"
] |
[
"arduino",
"atmega328",
"game",
"keypad",
"terminal",
"toy",
"vault"
] |
[Thomas Cannon]
created his own hacking game
by adding some circuitry to this toy vault. The original toy uses the keypad to control a solenoid keeping the door shut. He kept the mechanical setup, but replaced the original circuit board with his own ATmega328 based internals. He also added a USB port to the front. The gist of the game is that you plug-in through USB to gain access to the vault’s terminal software. If you can make your way through the various levels of admin access the loot inside will be yours.
| 22
| 22
|
[
{
"comment_id": "213092",
"author": "BrokenTrace",
"timestamp": "2010-11-15T23:20:28",
"content": "Just in time for Christmas!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213094",
"author": "poot",
"timestamp": "2010-11-15T23:22:04",
"content": "Meh, how about I tack a hammer against it and just make the loot mine…AHAHAHA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213096",
"author": "BRIAN",
"timestamp": "2010-11-15T23:26:58",
"content": "This would make a wicked geocache. I could see all the old people crying. LOL LOL :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213111",
"author": "Moat",
"timestamp": "2010-11-15T23:49:52",
"content": "Neat! I’d like to see the hacking mini-game from Fallout used to open one of these.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213120",
"author": "XCoder",
"timestamp": "2010-11-16T00:10:10",
"content": "Cant you just, replace the atmegas main code, to set high every pin?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213123",
"author": "lordicewind",
"timestamp": "2010-11-16T00:20:42",
"content": "nice one! Hmmmmmm, am I guessing right by the number of asterisks there – the password of the admin is “password”? xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213126",
"author": "Myndale",
"timestamp": "2010-11-16T00:26:45",
"content": "Cool hack! There’s a minor bug though…the vault_passwd_list array needs to be terminated with a NULL, similar to what you’re doing with the vault_cmd_set array (you can’t really rely on the compiler to do it for you).Can’t wait till my kid’s old enough to do fun stuff like this with him :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213143",
"author": "BitMage",
"timestamp": "2010-11-16T01:04:14",
"content": "I want one!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213170",
"author": "cde",
"timestamp": "2010-11-16T02:02:54",
"content": "He should wire up the keypad, and add a set of 4 leds, and turn the front into a game of genius. 10 tries max, with a random password every 10 tries, or every successful try atleast. That way you can play with the vault without a computer. As a geo-cache, the old folks will still be able to use it too.Since I can’t find a link for genius online, its a game where you have to find an unknown password, within x number of tries. You key in 4 numbers, and leds will light up, letting you know if you got a number right, and if you got it in the right spot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213172",
"author": "doron",
"timestamp": "2010-11-16T02:05:58",
"content": "Reminds me ofhttp://hackaday.com/2010/01/21/frustromantic-box-a-reverse-geocache/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213185",
"author": "M4CGYV3R",
"timestamp": "2010-11-16T02:40:31",
"content": "“TinyCore allows you to start with a very basic graphical Linux Desktop with a terminal client and download just the packages you need from its online repository. Once downloaded those packages will be available whenever you boot it again. I won’t go into detail because it is quite straightforward,”Yes, now THAT’s consumer friendly. I’m sure they’ll sell like hotcakes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213197",
"author": "doron",
"timestamp": "2010-11-16T03:34:18",
"content": "I meanthttp://www.hackerbox.co.uk/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213433",
"author": "Rob",
"timestamp": "2010-11-16T16:51:13",
"content": "@cdeI think its called mastermind",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213450",
"author": "Mi6",
"timestamp": "2010-11-16T17:35:33",
"content": "How can I order one? Is there real loot inside?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213457",
"author": "Spork",
"timestamp": "2010-11-16T18:27:04",
"content": "Very fun project, I want to play!I like to weld and have access to a CNC mill, wonder if I could come up with a hammer-proof version of this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213633",
"author": "Maave",
"timestamp": "2010-11-17T01:08:42",
"content": "Toy vault wargames, awesome.Anybody know of wargame sites? I know ofhttp://www.hellboundhackers.org/,http://www.overthewire.org/wargames/, andhttp://www.sans.org/netwars/(NetWars is serious stuff, sponsored by the gov’t)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213720",
"author": "troy",
"timestamp": "2010-11-17T06:13:11",
"content": "I just uploaded this to a spare arduino and having a hoon. Up to level 3, just trying to figure out the pin number.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213782",
"author": "Whatnot",
"timestamp": "2010-11-17T09:29:29",
"content": "Seems more productive to hack the real world and make millions, if you are spending time and effort.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214683",
"author": "Merried Seinor Comic",
"timestamp": "2010-11-18T21:29:40",
"content": "@WhatnotNO FUN ALLOWED!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214849",
"author": "netshark",
"timestamp": "2010-11-19T05:31:54",
"content": "That vault was sold by Radioshack, and I have just the older one, all gray with yellow buttons. If I ever get some free (“engineereable”) time, I’d love to give it a try.Is there a way to use this code into a “normal” AVR without an arduino card? I normally use bare AVRs with a simple ISP programmer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "325024",
"author": "Gadono!",
"timestamp": "2011-02-06T07:04:33",
"content": "this project totally rocks! can’t wait to do it myself when i have the time",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2431234",
"author": "ARM",
"timestamp": "2015-02-11T13:14:58",
"content": "Fixed link for time travelers :http://thomascannon.net/bank-vault/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.066443
|
||
https://hackaday.com/2010/11/13/lessons-in-electric-circuits/
|
Lessons In Electric Circuits
|
Devlin Thyne
|
[
"Parts"
] |
[
"book",
"Getting Started",
"Lessons in Electric Circuits"
] |
Are you looking for a good source of information to get started into making and hacking electric circuits? We would like to refer you to
Lessons in Electric Circuits
. Even if you have good knowledge of electronics, this is another tool you can use. The book is a work in progress and will have some incomplete and pending areas, but the basic theory parts to get started are all there. It has six volumes: DC, AC, Semiconductors, Digital, Reference, and Experiments. The DC and AC volumes are the most complete. If your eyes are already glazing over thinking you already know all of this stuff, then the most interesting volume for you may be the
Experiments
, which contains a number of sample circuits like transistor amplifiers and 555 timer circuits. The best part of this book it that it is free, but as with most free things, you can make it better by contributing.
Via
Adafruit Industries
.
| 19
| 19
|
[
{
"comment_id": "211909",
"author": "Pouncer",
"timestamp": "2010-11-13T15:55:11",
"content": "Very nice! Thanks for posting it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211911",
"author": "biozz",
"timestamp": "2010-11-13T16:08:22",
"content": "there very nice and informative!but am i the only one wondering whats up with these 1960s unrelated pictures of nature? XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211916",
"author": "Skully",
"timestamp": "2010-11-13T16:26:46",
"content": "This is great. I’ll hang onto this one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211917",
"author": "Reaper",
"timestamp": "2010-11-13T16:31:42",
"content": "That’s pretty awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211919",
"author": "Koray",
"timestamp": "2010-11-13T16:45:33",
"content": "This is excellent! Now I should find a way to convert the site to epub for my Reader.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211934",
"author": "blue carbuncle",
"timestamp": "2010-11-13T17:27:18",
"content": "Nice Resource :) Thanks subby/HaD :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211946",
"author": "chris",
"timestamp": "2010-11-13T18:13:27",
"content": "Good resource. Thank you very much, for posting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212011",
"author": "e-rock",
"timestamp": "2010-11-13T19:26:25",
"content": "As a EE student all i can say is:This is amazing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212041",
"author": "xeracy",
"timestamp": "2010-11-13T20:52:01",
"content": "http://www.falstad.com/circuit/this Java Circuit similator has done more for my practical understanding of circuitry than any book or tutorial. Just wanna pass it along.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212042",
"author": "xeracy",
"timestamp": "2010-11-13T20:52:21",
"content": "sim-U-lator",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212072",
"author": "Whoever",
"timestamp": "2010-11-13T22:15:26",
"content": "Am I the only one who LOLed at the clever relation between the pictures and the topics?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212183",
"author": "D_",
"timestamp": "2010-11-14T03:53:46",
"content": "@Whoever, I really didn’t pay attention to them until biozz mentioned it Understanding rarely do technical books use art on the cover for the sake of pretty art, I took a second look. The first 2 volumes are obvious. A 1 line road for DC, a 2 lane road for AC. The others are bit more subtle.The ebooks are an excellent resource. I recommend them along with the the USN Naval Electricity Electronic Training Series. In that NEETS is not readily available for download anymore, those may get the nod more.http://www.falstad.com/circuit/like older technology animations, and just plain old building circuits and measuring the results, does support text books. However INO with out textbooks animations alone lead some to come up with some strange unsupported conclusion. Except for those animations that include that theory in the video, something the java does not included. Thanks for pointing us to this Devlin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212204",
"author": "WootWoot",
"timestamp": "2010-11-14T06:06:51",
"content": "Now, I never ever comment, but I had to say, thanks for the information, you’ve made one more person happy. (:",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212301",
"author": "qwerty",
"timestamp": "2010-11-14T13:38:14",
"content": "Speaking of simulators, ktechlab is a nice one that allows writing code them emulating PIC microcontrollers along with analog stuff.http://en.wikipedia.org/wiki/KTechLab",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212387",
"author": "Per Jensen",
"timestamp": "2010-11-14T18:19:31",
"content": "WTF has the pictures to do with electronics ?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212873",
"author": "Andrei",
"timestamp": "2010-11-15T13:58:06",
"content": "This same book appears to be available also at:http://www.allaboutcircuits.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212914",
"author": "walt",
"timestamp": "2010-11-15T16:43:02",
"content": ":) thx",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212917",
"author": "pork",
"timestamp": "2010-11-15T16:46:23",
"content": "does a good forum exist for chatting about projects. from time to time, I’d like to bounce my ideas off of some other electronics peeps. would also come in handy when I am deep into a project and hit a wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "822247",
"author": "aman verma",
"timestamp": "2012-10-17T17:38:12",
"content": "sorry.. But the books are too basic.. can u give me spme more advanced circuit book",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.267442
|
||
https://hackaday.com/2010/11/12/help-me-reverse-engineer-an-led-light-bulb/
|
Help Me Reverse Engineer An LED Light Bulb
|
Mike Szczys
|
[
"HackIt"
] |
[
"attiny13",
"buck converter",
"color change",
"led",
"light bulb",
"reverse engineer",
"sylvania"
] |
I went to the last monthly meeting of
Sector 67
, a hackerspace in Madison, WI. One of the things shown off was a color changing LED light bulb that Menards was clearing out for $1.99. Inside there’s two RGB LEDs controlled by an ATtiny13 and powered by an AC/DC buck converter. An ATtiny13 will run you around $1.25 by itself so this price is quite amazing. I grabbed a couple of these bulbs and set to work on them. Join me after the break to see what I’ve got so far.
Update:
read a follow-up to this post
.
These bulbs use a candelabra base so I grabbed an adapter and tried it out in a lamp. Here’s the result, you can see it stepping through color levels a few times a second:
[youtube=http://www.youtube.com/watch?v=yRrYp3qRBXc&w=470]
We’ve seen this in a lot of
mood light hacks
, I want to get at the hardware and make it do my bidding. First thing’s first, time to crack it open. For some reason I thought that carefully drilling some holes around the base would help me figure out where best to use the Dremel cutting wheel. Unfortunately I immediately drilled through one of the inductor coils. Drat.
Well, no stopping now. I’m not too worried as I also bought a solid red version of this bulb. I want to see what’s inside, whether it’s the same design with unpopulated components, or the full shebang with different hardware. I assume there’s no microcontroller inside so I’ll steal the inductor from that one later.
I cut off the diffuser and got to the circuit board. Here’s some images (click for hi-res) as well as a cursory list of hardware.
Top:
R2 – 1004
R3 – 1004
R4 – 3001
R5 – 1302
R10 – 1003
D4 – Looks like a zener… perhaps to set down votage for the tiny13
D5 – RGB LED
D6 – RGB LED
D7 – JF S1J
IC5 – ATtiny13
C1 – smd without label
C7- smd without label
Bottom:
R1 – inline with center conductor of light socket
P1 & P2 – Labels for incoming AC power?
L1 – 102J CEC
L2 – 102J CEC
C2 – 50V 22 uF electrolytic
C3 – 400V 4.7 uF electrolytic
C4 – 400V 4.7 uF electrolytic
C5 – 25V 100 uF electrolytic
C6 – smd without label
D3 – R106 TF
R6 – 1201
R7 – 1Bx
R8 – 270
R9 – 270
IC1 – NGS (transistor for driving LEDs?)
IC2 – NGS (transistor for driving LEDs?)
IC3 – NGS (transistor for driving LEDs?)
IC4 – LNK304GN AC/DC switching converter
I wanted to see if I could talk to the ATtiny13 so I soldered wires onto the pins and hooked it up to my AVR Dragon programmer. ISP was a no go so I soldered more wire to the remaining connection and gave high voltage programming a shot. That was also a failure. But since I already hosed that inductor I have no issue popping the microprocessor off of the board. Here it is soldered onto some perfboard and inserted in a breadboard:
I tried ISP again and that was a no-go. But this time around High Voltage Serial Programming worked. I talked to the chip with AVRdude using this command:
avrdude -P usb -p t13 -c dragon_hvsp -v
That polls the chip and reads back the fuse settings. Currently the lfuse is 0x6A which is the factory default but the hfuse is 0xFA. After checking the datasheet I see that they’ve disabled the reset function (that’s why ISP doesn’t work) and enabled brownout detection. I dumped the firmware and the eeprom and that’s where I’m at. Now I need your help.
I haven’t done much reverse engineering before this so I’m not sure what to do next. I disassembled the firmware using ‘ndisasm’ but I have no idea what I can learn from it, or even how to read it. I’d love some help answering two questions:
1) Why couldn’t I talk to the chip when it was on the circuit board?
2)
What can I learn from
the disassembled code
.
Update:
after running the code through an AVR disassembler it looks like this is just an ascending list of numbers. [Tiago] pointed out in the comments that this is the behavior when the lock bits have been set. It should be possible to reuse the chip by erasing it but I won’t be able to dump the firmware first. Now I’ll focus on figuring out how the board is routed.
Let me know in the comments.
Read Part Two
| 101
| 50
|
[
{
"comment_id": "211576",
"author": "Angelo",
"timestamp": "2010-11-12T22:18:40",
"content": "Be careful. Harmful / toxic substance are inside the bulb, as mercury, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211578",
"author": "Aero",
"timestamp": "2010-11-12T22:23:05",
"content": "Angelo… no.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211579",
"author": "geg",
"timestamp": "2010-11-12T22:23:11",
"content": "Angelo, are you sure you’re not thinking of CFLs? I wasn’t aware of LED presenting a mercury hazard",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211581",
"author": "goldscott",
"timestamp": "2010-11-12T22:23:34",
"content": "1. Was the programmer soldered directly to the pins? Maybe there’s a regulator of some sort dropping the HV signal. O’Scope it.2. Looks like a lot of “add” in the code and not much control logic. I suppose it’s just running a simple loop cycling through colors though. Maybe the adds are an obfuscated way to go about setting up all the I/O registers, etc. Not sure. Wish the disassembler would’ve filled in register names like some others do…That’s my quick first look.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211583",
"author": "alankilian",
"timestamp": "2010-11-12T22:24:33",
"content": "It looks like you didn’t actually get the code read from the device.All you’ve got is an incrementing data pattern. See it count 00 01 02 03 04? That’s it.So I would try again to read the code from the chip and then disassemble it.And There’s no mercury in LED bulbs, so you’re safe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211584",
"author": "Squirrel",
"timestamp": "2010-11-12T22:24:36",
"content": "@AngeloCheck your facts. You’re clearly mistaking LED bulbs for CFL bulbs (the coily ones)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211586",
"author": "Mike Szczys",
"timestamp": "2010-11-12T22:25:33",
"content": "@Goldscott:1. Yes, soldered directly to the pins. Unfortunately I don’t have a scope.2. Anyone know of a better disassembler to use than ndisasm?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211587",
"author": "plaes",
"timestamp": "2010-11-12T22:26:22",
"content": "This code looks x86 to me, not AVR assembler. Could you either put up the .bin file or disassemble it using avr disassembler?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211588",
"author": "Garrett",
"timestamp": "2010-11-12T22:26:57",
"content": "The converter’s trying to draw too much current, more than your ISP can provide, which is why you couldn’t talk to it in circuit. We see the same problem in the adafruit Ice Tube Clock kit when you attempt to program the ATMega ISP with the tube plugged it. Cut the leads (Vin0 to the buck converter and you might be able to program it in circuit. But since you’ve pulled it it hardly matters at this point.Oh, and there’s not much toxic substances in an LED, Angelo. It’s not a CFL.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211589",
"author": "Dan",
"timestamp": "2010-11-12T22:27:29",
"content": "The disassembled code doesn’t look correct. It’s just 0x00-0xFF twice, interpreted as assembly. I know some AVR devices can protect their code space from being read for security, is the Tiny13 one of those devices?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211590",
"author": "Nathan",
"timestamp": "2010-11-12T22:27:33",
"content": "begone mercury scare monger.also: your disassembly isn’t of the firmware. note that the undisassembled code is just a couple of regular numeric sequences, e.g. 1, 2, 3, 4…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211591",
"author": "guy",
"timestamp": "2010-11-12T22:30:00",
"content": "Code looks funny because ndisasm is for intel architecture and not avr, no?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211592",
"author": "Lars",
"timestamp": "2010-11-12T22:30:21",
"content": "I would say you could not talk to the AVR in circuit because the pins are obviously connected to other components on the PCB. That introduces loads to the pins of the AVR and the programmer, so the signal gets altered, distorted, weakened..Sometimes it’s possible with a very slow programming speed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211593",
"author": "Daid",
"timestamp": "2010-11-12T22:30:26",
"content": "I don’t think you used the right disasmbler, or atleast it in a correct way. Can you post the raw flash/eeprom files?The dump is just the word values 0000 to 00FF, translated to x86 16 bit mode opcodes? Because that looks nothing like AVR ASM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211594",
"author": "alankilian",
"timestamp": "2010-11-12T22:30:33",
"content": "That’s just an incrementing patter. It doesn’t look like the code download worked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211595",
"author": "Daid",
"timestamp": "2010-11-12T22:31:48",
"content": "(avr-objdump from winavr can disasmble)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211597",
"author": "Mohonri",
"timestamp": "2010-11-12T22:32:33",
"content": "alankilian is right–that ain’t code you have there. I’d be willing to take a look at the real code once/if we get it. For something as simple as a color-cycling bulb, it won’t be very complex.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211599",
"author": "slinky",
"timestamp": "2010-11-12T22:36:55",
"content": "Be careful. Eating the LED’s can be harmful! :PSeriously though, nice teardown and good job getting the at the code!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211600",
"author": "Cybergibbons",
"timestamp": "2010-11-12T22:40:32",
"content": "I’d have to question the value in reverse engineering the code – you’ve got a set of clearly defined inputs and outputs, and it’s easy to infer what is going on in the uP. It’s normally only really necessary to reverse engineer more complex system.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211602",
"author": "st2000",
"timestamp": "2010-11-12T22:43:43",
"content": "Perhaps later I’ll take a look at the code. But right off I’m thinking “danger, 110V!”. Then it strikes me. These things are $2 each! Buy two. Make one into the power supply then the other into the development / hacking platform.If I had to guess w/o looking I would say the software is probably an exercise in pulse width modulation. Such that you can slowly change the colors of the LEDs.You pictures are very good. I can see each LED has 6 legs. And there appears to be 3 LEDs (dark spots) in each LED case. If you can trace these back to the micro (probably through a transistor like device) that should help others backwards engineer the code.I can think of some great fun with these. I remember internet connected devices which changed color based on scraping the weather or stock market reports.What would help is a quick check and sketch of the LEDs leads, how they are powered and from which pin of the micro. That way we could look at the code with an eye of understanding. If the",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211603",
"author": "Willyshop",
"timestamp": "2010-11-12T22:45:21",
"content": "Yup, definitely unsafe. I hear they also contain roentgenium and Darmstadtium, which is probably why they don’t last very long. Oh, and the case is made from asbestos. Better look out for the velociraptors hiding in the box, as well!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211605",
"author": "Mike",
"timestamp": "2010-11-12T22:47:54",
"content": "I agree about the ASM code dump, it does not read like real code, I don’t think it converted correctly. I see nothing that indicates a control loop of some sort. post the raw dump",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211606",
"author": "John Laur",
"timestamp": "2010-11-12T22:48:38",
"content": "You can’t talk to the chip while it was on the board because HV programming isn’t designed to work in-circuit. ISP doesn’t automatically work in circuit either unless the board is properly designed for it. They probably had the attinys pre-programmed before they assembled the boards as is usual in production at this scale.Can you tell if the reset pin is connected to anything on the board? They may have disabled reset as a rudimentary protection measure or more likely they may have needed to repurpose the pin for another purpose.The AC->DC converter on the lower part of the board outputs 12V. Undoubtedly the LEDs are driven at 12V by the transistors/FETs on the underside. There is some possibility that the ATtiny is both controlling the LEDs and playing a part in the power supply. Before having a look at the code it would be useful to know something about where the IO pins of the ATTiny are routed.It probably wouldn’t even be worth trying to wade though the disassembly if the mcu is simply controlling the LEDs. Theres plenty of code out there for that — it would be easier to simply write your own implementation. If it’s playing a part in the power supply though, things are going to be far more complicated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211607",
"author": "Cotty",
"timestamp": "2010-11-12T22:48:59",
"content": "I have 2 questions.1. Why do you try to disassemble ATTiny assemble code with x86 disassembler?2. Why do you try to disassemble 00 01 02 03 which does not look like processor instructions? Processor instructions are likely to be more “irregular”.I would find where they start, find proper disassembler, and try again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211608",
"author": "Dave",
"timestamp": "2010-11-12T22:49:34",
"content": "I don’t have an answer to your first question and an partial answer to the second one.You can learn a lot form the code in the microcontroller. It can teach you how the device works. Unfortunately, the disassembled code you posted is useless. You used nsisasm, which is a 80×86 disassembler and therefore incapable of understanding avr binary files. Try using an avr disassembler like vAVRdisasm. You’ll see thatthe produced code will make more sense.Once you understand how the code works, you can modify it to suit your needs. You can for example make it to display different color sequences or blinking patters. Those are just some ideas.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211614",
"author": "Tiago",
"timestamp": "2010-11-12T23:09:13",
"content": "If the protectio bits are enable everything that you will read is the flash address and not the flash contents, as said, learn how to use avr-objdump, because its pretty obvious that your disassembly is from a x86 core, those have AX,BX,CX,DX,SI,and others registers, AVR’s have r0,r1,r2, up to r31 and then they have the X,Y and Z for the pointers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211615",
"author": "bogdan",
"timestamp": "2010-11-12T23:11:16",
"content": "If you disable the reset, you cannot use ISP. The device looks like it is protected against reading the code(which is how most micros are in commercial aplications in order to protect duplication). Still, it should be easy to reproduce. Also, get a new bulb and hook up a scope on each of the pins.Hv programming is not suited for in board and it might even damage other parts of the circuit.I wish i could find such cheap bulbs… now attiny13 costs more than $2 for one piece.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211620",
"author": "5318008",
"timestamp": "2010-11-12T23:30:42",
"content": "@Angelo, +1 internets for successful troll.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211621",
"author": "Arpad",
"timestamp": "2010-11-12T23:32:50",
"content": "You need to reverse engineer the schematic.Use generic component pinouts for LEDs & transistors.I wouldn’t waste any time on rev.engineering the firmware. 3ch PWM control is not a big deal.For debugging don’t use live Voltage, inject 12V after the PSU, it will be much safer after that (it might damage the PSU).After finished that, you can think about controlling the bulb. (NO direct connections!)Only wireless: IR,RF,soundMake it IR remote controllable, like the Philips bulbs.Place many in one room, average the colors of your monitor/screen, then make dynamic ambient light.That’s all you can do for $2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211622",
"author": "Donov4n",
"timestamp": "2010-11-12T23:43:46",
"content": "Dude, get a girl!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211641",
"author": "Chris",
"timestamp": "2010-11-12T23:55:24",
"content": "Would you please make the binary (or hex) file available to us. Then one of us could feed it into IDA Pro or any other modern analysis tool ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211642",
"author": "Matrix",
"timestamp": "2010-11-12T23:56:48",
"content": "Angelo, your thinking CFL, Led has no toxins, well the plastic / metal isn’t health to ingest, but it lead / mercury / gas free….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211643",
"author": "tanjent",
"timestamp": "2010-11-13T00:00:17",
"content": "Switching buck regulator + some nmos FETs to PWM the LEDs + shunt regulator for the ATTiny. Not terribly efficient, but this is mood lighting and not illumination.The 270 ohm resistors seem a bit high if they’re limiting LED current, but we don’t know for sure what voltage the buck regulator is generating.Nice little light for $1.99, wish I had a few to hack on. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211647",
"author": "ButWait",
"timestamp": "2010-11-13T00:16:25",
"content": "@Donov4nWhich dude?They all could use one — or more!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211648",
"author": "tanjent",
"timestamp": "2010-11-13T00:17:44",
"content": "R4/R5 are feedback resistor divider for buck regulator, which with the feedback voltage of 1.65v from the datasheet gives an output voltage of ~9v.R7/R8/R9 are the current limiting resistors, which the original post read incorrectly – looks like 18, 22, and 27 ohms. guesstimate 150 mA per LED die? that seems high still, but not ridiculous.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211649",
"author": "DarkAurora",
"timestamp": "2010-11-13T00:22:29",
"content": "Only $1.99? And I got my IR controlled one for like $30. Feel like a sap now. Ah well. Looking forward to the development of this project, maybe then I can add IR to a bunch of these and have a whole bunch running off of one remote.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211656",
"author": "Filespace",
"timestamp": "2010-11-13T00:38:57",
"content": "i rember back in the dishnet hackign days on some 301 irds having to cut a trace that was holdign the reset pin of the tsop low to be able to gain read/write access.. i would be intrested to see what the pins on the atiny are tied to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211664",
"author": "mowcius",
"timestamp": "2010-11-13T00:42:58",
"content": "Yeah I think the mercury thing was some spammer and it’s all over now but mercury scare?Mercury’s fun! Just play outside :pNice work on this, shame I have not seen anything similar in the UK, would be a nice thing to hack up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211679",
"author": "M4CGYV3R",
"timestamp": "2010-11-13T00:59:18",
"content": "Awesome to see people hitting up Sector67. I’m gonna have to stop by late December when I’m back up there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211684",
"author": "Mike Szczys",
"timestamp": "2010-11-13T01:14:58",
"content": "Tiago mentioned that the lock bits might be just feeding the register addresses when read. I think he’s right because I tried disassembly with vAVRdisasm and I get sequential numbers. The debugWire is not enabled so it looks like there’s no way to dump the code.I’ll need to try and figure out how the board is wired up. I’ve done some continuity testing but no success if tracing from uC pins to transistors, or figuring out how the LEDs are connected. Bit of strangeness going on that I’ll have to look into more this weekend.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211693",
"author": "xorpunk",
"timestamp": "2010-11-13T01:55:12",
"content": "Can read out every page of EEPROM and FLASH even with the bits and fuses set using a buffer/reset trick ^^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211696",
"author": "xorpunk",
"timestamp": "2010-11-13T02:00:08",
"content": "BTW I think they officially support rewriting to both, but only after chip erase is called, and after reset. Read about watchdog and the buffer-before-erase method to get data out on the 1-wire pin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211701",
"author": "Tiago",
"timestamp": "2010-11-13T02:31:49",
"content": "If you want I can give you working code for the arduino IDE that uses an HSL colour wheel and then translates the Hue value to RGB and output that as pwm for an RGB led, but its very very easy to do, and there are many examples out there.Fell free to ask.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211712",
"author": "bitbot",
"timestamp": "2010-11-13T03:34:25",
"content": "@xorpunkCould you provide some details on the buffer/reset trick? I took a look at the datasheet and didn’t see what you meant. I’m curious…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211717",
"author": "gmcurrie",
"timestamp": "2010-11-13T03:39:32",
"content": "Hey Angelo, no worries – I glanced at original post and thought exactly the same as you till I saw the pix of the *plastic* bulb – yep, DUH :)—Just looking at looking at CFL circuits for first time- interesting, but a bit Hairy-Scary / incomprehensible for me – (soon as it gets into Coils/Inductors am a bit lost…)—Any interesting hacks with CFLs/’CFL bases’ (i.e. sans bulb) out there? I keep getting packs of them sent to me for free from my electricity supplier, but I don’t like the light they give out so they just sit in my cupboard.http://www.pavouk.org/hw/lamp/en_index.html#electrical_construction",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211762",
"author": "jeditalian",
"timestamp": "2010-11-13T06:02:37",
"content": "yeah you take a cfl base and hook it up to a tv’s flyback transformer and make a lightning machine. i don’t remember exactly what you hook where, google it.http://www.youtube.com/watch?v=hHsxnbCQCww&feature=related",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211765",
"author": "jeditalian",
"timestamp": "2010-11-13T06:03:26",
"content": "this guy’s gaps are better:http://www.youtube.com/watch?v=9pd1w63gaU4",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211767",
"author": "jeditalian",
"timestamp": "2010-11-13T06:08:43",
"content": "when i originally read the cfl+flyback thing, i thought it said you could make like really long ‘lightning bolts” like a few feet long.. i love it when a cfl burns out. burnt out incandescents are practically useless, but a dead cfl brings something to the table",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211771",
"author": "aReddishGreen",
"timestamp": "2010-11-13T06:19:17",
"content": "Looks like a fairly strait forward circuit to me. The LinkSwitch LNK304 universal off-line switch mode controller is a class of devices found a lot in the smaller wall adapters for cell phones and the like. That particular chip can only output about 170mA of total current due to the limitations of the internal switching FET. It probably just provides the board with regulated 5V, based on the requirements of the ATtiny and the fact that I don’t see another voltage regulator. Although it might be possible that D4 is a zener and is being used as a rudimentary regulator for the AVR.Throw in a few FETs as low side switches to PWM dim the RGB channels of LEDs and you have yourself a mood light!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211773",
"author": "Gdogg",
"timestamp": "2010-11-13T06:38:03",
"content": "LOL@not seeing the no read pattern and THEN trying to use an x86 disassembler on it.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.009209
|
||
https://hackaday.com/2010/11/12/nixie-frequency-counter-gone-timepiece/
|
Nixie Frequency Counter Gone Timepiece
|
Mike Szczys
|
[
"clock hacks"
] |
[
"clock",
"decade counter",
"emsl",
"frequency counter",
"nixie tube"
] |
[Windell] of Evil Mad Scientist Laboratories took an ancient Nixie tube based frequency counter and
converted it into a clock
. The unit he got his hands on is an HP model that was still in great shape. He’s using an internally generated one second pulse as the clock signal, but some modifications are necessary to display time. That’s because the frequency counter is base 10 and clocks use a quirky combination of base 60 and base 12.
It wasn’t too much of a problem to rig up a system to track minutes and seconds. The tens digit for each is monitored by a couple of AND gates that he added to the mix. When they detect a ‘6’ the digit is reset and a pulse increments the next digit as the carry. This is more difficult to accomplish with the hours though. Minutes and seconds count from 0 to 59 but hours don’t start at 0. Instead of over-complicating the logic [Windell] used a bit of slight-of-hand. The Nixie tubes for the hours have been rewired so that when the counter is at 0, the filament in the shape of a 1 lights up. No difference in logic, just a translation that makes them display one digit higher than the actual count.
| 25
| 23
|
[
{
"comment_id": "211517",
"author": "biozz",
"timestamp": "2010-11-12T19:07:40",
"content": "damn people are turning these things in to clocks when im spending at least an hour a day on ebay looking to buy a working one cheap >_>if you have an old counter, generator, scope or anything like that you wanna rid of email me atonebiozz@gmail.com… sorry to advertise im desperate XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211525",
"author": "dAN",
"timestamp": "2010-11-12T19:30:23",
"content": "Agreed, what was wrong with having a nixie tube frequency counter? Way more useful than a clock IMO.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211530",
"author": "Kalleguld",
"timestamp": "2010-11-12T19:35:44",
"content": "“Minutes and seconds count from 0 to 59 but hours don’t start at 0.”Yeah they do – oh, you are still using the archaic 12-hour system where hours don’t reset at the same time as am/pm or dates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211531",
"author": "matt",
"timestamp": "2010-11-12T19:36:42",
"content": "Projects like this are great for people who want to make a nixie clock but aren’t comfortable messing with high-voltage power supplies. I turned a busted one into a clock last year and it’s still on my desk, ticking away.Wasn’t there some guy who turned an unmodified frequency counter into a clock by feeding it exactly the right amount of high-speed pulses to make the display show the time? I think I saw that a couple years ago but I don’t have a link. Ingenious idea though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211534",
"author": "alankilian",
"timestamp": "2010-11-12T19:49:58",
"content": "biozz, I sent you a message about a signal generator and an oscilloscope you can have for shipping.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211538",
"author": "medix",
"timestamp": "2010-11-12T20:12:53",
"content": "@matt: I believe that was also a work of cleverness. Any time there was a rollover, the entire counter was reset and clocked back to the correct ‘time’ value, but so fast that POV takes over and you only see one update.I think that’s how it went anyway. Can’t remember what the update time was like though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211540",
"author": "Jakezilla",
"timestamp": "2010-11-12T20:15:26",
"content": "@matt You don’t need a HV supply, just a driver chip like the 7441 or similar solution. You will still have HV on your board, but it is very low current.Is there a site for buy/sell/trade used instruments? I would love to get a decent 4 channel oscilloscope. All I can find is either high quality calibrated used equipment that costs $$$$ or old phosphor scopes…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211545",
"author": "Squirrel",
"timestamp": "2010-11-12T20:25:37",
"content": "So judging by the comments so far, I think HaD needs to have some type of marketplace…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211548",
"author": "polossatik",
"timestamp": "2010-11-12T20:44:30",
"content": "lol.. hours don’t start at 0So I live in a place without time for one hour of the 24 hours? :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211551",
"author": "zool",
"timestamp": "2010-11-12T20:52:57",
"content": "@Squirrel, HaD fleamarket?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211554",
"author": "bearmos",
"timestamp": "2010-11-12T21:12:44",
"content": "“clocks use a quirky combination of base 60 and base 12.”The digits of a clock are still base 10 (each digit represents one of 10 values). . .that is, of course, unless you’ve got a binary or hexadecimal clock!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211555",
"author": "Kees Reuzelaar",
"timestamp": "2010-11-12T21:15:17",
"content": "I would gladly have shipped three nixie clocks and complete parts for another three for free to the “hacker” in exchange for this counter.Barbarian… :-(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211575",
"author": "s",
"timestamp": "2010-11-12T22:15:44",
"content": "@zoolDon’t know if it would be workable, but HaD fleamarket would be great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211585",
"author": "leadacid",
"timestamp": "2010-11-12T22:25:25",
"content": "@Squirrel, zool, sI’d love a good trade/loan system or forum. I’ve got some equipment that I’ve picked up and only used for one or two projects but otherwise sits on a shelf. I grabbed a good 1980’s HP 1630 series logic analyzer that I used for one project and now it sits waiting for another purpose.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "211610",
"author": "Caleb Kraft",
"timestamp": "2010-11-12T23:02:31",
"content": "@ALL ABOUT TRADING,It would take me forever and a half to try to get something official done. I may host something myself for you guys. we really should do this.-caleb",
"parent_id": "211585",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "211627",
"author": "Hitek146",
"timestamp": "2010-11-12T23:48:48",
"content": "^Agreed…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211628",
"author": "Fallen",
"timestamp": "2010-11-12T23:49:03",
"content": "I would find a trading post very useful.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "211644",
"author": "Caleb Kraft",
"timestamp": "2010-11-13T00:00:22",
"content": "This iscompletely unofficialI’ll begin begging the boss for something official.",
"parent_id": "211628",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "211692",
"author": "nave.notnilc",
"timestamp": "2010-11-13T01:42:19",
"content": "I’d suggest you add some capability for local trading, easier to trade random bits if you don’t have to do shipping, and you get the plus of meeting other enthusiastsgotta make it more useful than ebay in some manner :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211761",
"author": "HackerK",
"timestamp": "2010-11-13T06:02:00",
"content": "What a waste to a freq counter! First thing come to my mind would be using uC to generate the exact freq to have time display on a freq counter…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211786",
"author": "Paul",
"timestamp": "2010-11-13T08:03:17",
"content": "I think it’s a shame to destroy a perfectly working almost antique high quality HP lab equipment into the 100.000nth nixie clock.It would have been a nice hack though if it was done without any modification to the frequency counter.It wouldn’t even have been very difficult to do so. You’d only have to generate som “odd” frequencies.“Look ma, I turned that stupid flatscreen television you bought last month for $4500 into a very nice psychedelic disco light. And I only had to short circuit these 3 little black thingies”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211789",
"author": "Paul",
"timestamp": "2010-11-13T08:23:12",
"content": "To add something positive to my previous negative post:A guy named Jesper made some software for an AVR to do software DDS.Generates frequencies up to 300kHz with a resolution of 0.07Hz. Which is good enough for a clock like this.Here is his site:http://www.myplace.nu/avr/minidds/index.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212036",
"author": "Scott",
"timestamp": "2010-11-13T20:38:20",
"content": "What a waste of a frequency counter. Someone should buy an airplane, take off the wings, keep the wheels, and “hack” it to make it a car.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212252",
"author": "Whatnot",
"timestamp": "2010-11-14T09:56:42",
"content": "Yep, I agree, frequency counter beats clock.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213057",
"author": "Baba",
"timestamp": "2010-11-15T21:40:00",
"content": "I hate that all of this great old test equipment is getting turned into clocks. Vintage oscilloscopes, frequency counters, and voltmeters are fun to use and much more expensive/rare than clocks.It might have been neat if he had built something he could plug into the frequency counter which would generate frequencies that could display the time. I wouldn’t have been that much more difficult, it wouldn’t have destroyed the frequency counter, and it would have been portable to every other frequency counter ever made. Someone needs to do that.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.38581
|
||
https://hackaday.com/2010/11/12/helicopter-pov-display-is-a-masterwork/
|
Helicopter POV Display Is A Masterwork
|
Mike Szczys
|
[
"LED Hacks"
] |
[
"atmega8",
"helicopter",
"persistence of vision",
"POV",
"shift register"
] |
Yes! A radio control
helicopter with a fairly high-resolution persistence-of-vision display
is a beautiful thing. [Mziwisky’s] handiwork is the result of
several steps along the prototyping path
. He built up a POV test rig on a breadboard, designed his first PCB for the project, and then went to work building it. After initially being inspired by
a POV ceiling fan
[Mziwisky] looked around to see if anyone else had already added a display to a helicopter. Indeed,
this has been done before
but there were very few details on the build.
The helicopter has two blades and each have the same hardware on them and gobbled up about ten hours of assembly time each. He basically built a printed circuit board using the blades as a substrate by attaching adhesive copper foil. This makes up the matrix for the LEDs and connects to a small circuit board with an ATmega8 and some shift registers mounted on the inside end of the blade. There’s also a 180 mAh LiPo battery pack, and a hall effect sensor to synchronize the display on each. The results are spectacular, as you can see in the video after the break, but there’s a few bugs left to work out in order to fully tame the 32 LEDs on each rotor.
Kind of looks like
the future is happening right now
.
[youtube=http://www.youtube.com/watch?v=LKTC1lmXnpc&w=470]
| 22
| 22
|
[
{
"comment_id": "211491",
"author": "Fallen",
"timestamp": "2010-11-12T18:04:41",
"content": "impressive :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211497",
"author": "Craig",
"timestamp": "2010-11-12T18:29:11",
"content": "Very cool – can it still fly?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211504",
"author": "McSquid",
"timestamp": "2010-11-12T18:48:50",
"content": "no take off?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211516",
"author": "Erik Johnson",
"timestamp": "2010-11-12T19:05:22",
"content": "@McSquid Might be too much added weight or drag on the rotors with the led strip? It would be awesome to mount them on the underside of the rotors and have it fly around so you look up at it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211519",
"author": "Erik Johnson",
"timestamp": "2010-11-12T19:10:01",
"content": "NVM, looks like it does flyhttp://www.youtube.com/watch?v=cWCrGPIA6Pw",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211523",
"author": "Joe R",
"timestamp": "2010-11-12T19:26:54",
"content": "This thing is sooo awesome! I’m a fan.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211526",
"author": "MWS",
"timestamp": "2010-11-12T19:30:49",
"content": "@Erick Johnsonhttp://www.youtube.com/watch?v=Wh86-L_OgK8&feature=player_embedded",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211527",
"author": "jaqen",
"timestamp": "2010-11-12T19:32:17",
"content": "I guess one can’t be a fan of a helicopter.You can be a blade :-)Some day i guess we will see this on real helicopters. I imagine “Pull over” on the police chopper or some station logo on the news chopper",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211543",
"author": "Drake",
"timestamp": "2010-11-12T20:22:58",
"content": "@erikI would think that its a 3d helicopterEG it can fly upside down.With LED’s on the bottom youll always have a good chunck missing for the area covered by the nose and tail boom",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211556",
"author": "mziwisky",
"timestamp": "2010-11-12T21:16:20",
"content": "Hey thanks for the interest, guys! Drake is correct, it is a 3D heli. So far though, it hasn’t seen any inverted flight with the lights on it — it’s much heavier in the air (i.e. takes significantly more throttle to get it flying), and the thought of crashing with those blades on it horrifies me!You can see in the video MWS referenced that there are gold lights on the bottom, so I can easily tell the orientation of it while it’s in the air. And yes, the bottom lights are partly blocked by the body of the heli, but you can still see what’s going on pretty well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211562",
"author": "jmatson",
"timestamp": "2010-11-12T21:43:51",
"content": "mziwsky – You are teh coolest! I wish I could buy you a beer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211601",
"author": "zeropointmodule",
"timestamp": "2010-11-12T22:41:19",
"content": "i can see this being very popular on those small indoor $20 helis.. :-)could probably make the entire blade out of polymorph or opaque casting resin with the LEDs exposed, and it would be pretty robust.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211613",
"author": "sms",
"timestamp": "2010-11-12T23:07:30",
"content": "this is cool…go marquette! i wonder if ppl did that in our digi class mu if u’d get extra credit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211640",
"author": "LeJupp",
"timestamp": "2010-11-12T23:54:20",
"content": "I can see a business case for serving ads using this technology on full size helis. Like “Watch NBC tonite” on the TV helicopter or “buckle up” and “don’t drink and drive” on the PD chopper.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211714",
"author": "sarsface",
"timestamp": "2010-11-13T03:38:05",
"content": "Have you gotten the programming done for real-time LED frequency adjustment in flight?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211772",
"author": "mziwisky",
"timestamp": "2010-11-13T06:32:11",
"content": "@sarsface Yes, the blades adjust the update frequency every revolution. A counter is used to measure how many clock ticks occur between revolutions, then that value is divided by 256 and stored in a register. Another timer starts counting at zero, and each time it reaches the value stored in the register, it resets itself and triggers the lights. So I always get 256 “slices” per revolution, regardless of the RPM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211780",
"author": "sarsface",
"timestamp": "2010-11-13T07:11:53",
"content": "That’s awesome, I was wondering how you’d achieve it with the differences in RPM while flying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211781",
"author": "Darkgaro",
"timestamp": "2010-11-13T07:11:55",
"content": "It would be interesting to see this on room fans as well. You could probably sit on your couch look at the fan and text.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211942",
"author": "blueb",
"timestamp": "2010-11-13T17:56:07",
"content": "where can you buy tiny LEDs in small quantities?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211947",
"author": "mziwisky",
"timestamp": "2010-11-13T18:14:55",
"content": "@blueb I got mine from Mouser. The ones on the heli are part numbers HT-193UY-5589 and HT-193NB-5591",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212192",
"author": "mziwisky",
"timestamp": "2010-11-14T04:44:03",
"content": "For anyone interested, I just created an online SVN repository in order to share the source files for HeliPOV.http://mziwisky.wordpress.com/helipov-source/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212676",
"author": "Hoop",
"timestamp": "2010-11-15T03:47:12",
"content": "Wow.Im thinking it needs rgb LEDsDo you have any idea how much easier to fly an RC heli would be if the rotor changed color depending on the angle? – if it went green at proper head speed, then stayed green on “level” and turned red on the “low side” – it could display an arrow indicating heading.. ON the rotor!the possibilities if you could feed telemetry would be almost endless.Thinking bigger- Why not have full animated displays on the topside of REAL heli rotors, fed from underside cameras. – Active camouflage against top-down viewing.Or in civillian applications , covering the bottom side with animated billboards- Blade Runner tech is here!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.324984
|
||
https://hackaday.com/2010/11/12/building-a-wooden-vespa/
|
Building A Wooden Vespa
|
Mike Szczys
|
[
"Transportation Hacks"
] |
[
"carpenter",
"scooter",
"vespa",
"wood"
] |
Scooter fans should start sharpening their chisels if they want to undertake
this project
. This Vespa is the work of a master carpenter and a lot of time. Through the build log photos you can see that it all started with a frame made by bending and laminating wood layers together. Veneer adds the stylish stripe and a lot of carving and turning brings the curves associated with the classic scooters. Even the hand grips, brake handles, and saddle are made out of wood. There’s springs for some shock absorption but we’d bet you don’t want to ride this for too long, or park it outside. Now it just needs
an electric motor retrofit
.
[Thanks Blair]
| 19
| 19
|
[
{
"comment_id": "211479",
"author": "CMJ",
"timestamp": "2010-11-12T17:15:30",
"content": "I hope this man passes on his skills to another. This kind of of craftsmanship is quickly disappearing from our society.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211480",
"author": "Ken",
"timestamp": "2010-11-12T17:21:49",
"content": "That is not a hack it is a work of ART!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211481",
"author": "Branno",
"timestamp": "2010-11-12T17:33:48",
"content": "Wow, this is amazing. Really impressive. There is only 1 problem though- he is going to park this outside? On the street? That would not go so well here in Berkeley.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211487",
"author": "Cantc",
"timestamp": "2010-11-12T17:38:34",
"content": "Portugal é do Caralho xDPortugal has some great craftsmanships…. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211493",
"author": "Patrick",
"timestamp": "2010-11-12T18:11:57",
"content": "Finally, a Vespa that I wouldn’t make fun of YOU for riding!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211499",
"author": "xorpunk",
"timestamp": "2010-11-12T18:37:10",
"content": "The wood work is beyond impressive..how many people do you know who can do that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211502",
"author": "nateL",
"timestamp": "2010-11-12T18:45:29",
"content": "I have long admired that Vespa – highly impressive. His motorcycle is cool, too.Here’s another incredible, impressive wooden piece (I would say the most impressive wooden creation I have ever seen):http://www.joeharmondesign.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211506",
"author": "reboots",
"timestamp": "2010-11-12T18:50:15",
"content": "@CMJ, from the handful of build pictures it looks like he may have passed his skills on to his daughter at least. If nothing else, she’s got the most stylish scooter in Portugal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211508",
"author": "vonskippy",
"timestamp": "2010-11-12T18:57:01",
"content": "You soldering iron jockeys need to get out more. Sure, it’s very nice work – but master wood workers are certainly not in limited or dwindling supply.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211510",
"author": "Spork",
"timestamp": "2010-11-12T18:58:41",
"content": "Wow… I don’t know what to say. That thing belongs in a museum on display, not on the street.Impressive, most impressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211535",
"author": "Zish",
"timestamp": "2010-11-12T20:02:06",
"content": ":-P~~~drooooll~~~~~",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211655",
"author": "grenadier",
"timestamp": "2010-11-13T00:36:41",
"content": "Holyfuckinshit. I can barely build a nice box…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211657",
"author": "James",
"timestamp": "2010-11-13T00:40:38",
"content": "Most impressive. Such skills are passed on fairly regularly at colleges here in the UK, but unfortunately it’s falling out of fashion to have a manual skill.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211683",
"author": "Anonymous",
"timestamp": "2010-11-13T01:14:19",
"content": "Does this mean he could make a Chinese Vespa clone out of some MDF and contact paper? (And can I order it flat-packed?)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211713",
"author": "jim",
"timestamp": "2010-11-13T03:34:49",
"content": "Do want",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211901",
"author": "joao",
"timestamp": "2010-11-13T15:33:46",
"content": "Portugal!!!This vespa is kinda old, (almost 3 years)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211997",
"author": "truthspew",
"timestamp": "2010-11-13T18:43:45",
"content": "That is one gorgeous Vespa. I have this urge to start working with wood again but doubt I have the chops for a piece like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212052",
"author": "Addidis",
"timestamp": "2010-11-13T21:39:40",
"content": "wow, that is simply amazing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212868",
"author": "Vespa Forum",
"timestamp": "2010-11-15T13:34:17",
"content": "Very cool wooden Vespa. He done a amazing job. She looks very beautiful.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.557298
|
||
https://hackaday.com/2010/11/12/stupid-friggin-robots/
|
Stupid Friggin’ Robots
|
Joseph Thibodeau
|
[
"contests",
"Robots Hacks"
] |
[
"competition",
"hungary",
"robot",
"useless"
] |
Some robots aspire to greatness, revolutionizing our humanoid behaviour in ways we struggle to understand. They have traveled in space, photographing the stars like celestial paparazzi or snatching Martians up like interplanetary bed intruders. Some robots are happy to perform their everyday functions with dignity and grace, scrubbing our floors and thanking us for recycling.
It may seem that every robot has a calling that–whether grandiose or humble–makes it a valuable part of our society. Unfortunately, this is not the case. Some robots use our hard-earned energy resources to no good use, lazing around without a useful function, drinking flux and tonic all night while watching reruns of
Lost in Space
. They are stupid robots.
Many humans look upon such pitiful automatons as nothing more than flotsam in the whitewater rapids of human achievement, but the more empathetic among us are ready to celebrate the unique uselessness of stupid robots in grand style. Enter
Bacarobo
(
translated
), the premier event showcasing the quirkiest and most amusingly useless robots of our time.
This year the contest was held at the end of October, and
the entrants were hilarious to say the least
. The dancing olé-bot drew much applause, while the shivering toque robots wooed the crowd in a desperate attempt to escape their frigid prison. It will be fun to see whether any stupidly adorable robot designs will come out of
our own Santa-bot competition
, considering the source material. If you’ve ever built a stupid or
useless
robot (accidentally or not) please share your story in the comments. Sometimes the most endearing things about our technology are the parts that
don’t work the way they’re supposed to
.
| 4
| 4
|
[
{
"comment_id": "211452",
"author": "Medodan",
"timestamp": "2010-11-12T16:33:51",
"content": "Stupid robots I can agree with, but useless is difficult to accept. I remember the little tin(yes tin) toy robots that I got for presents as a child. They did nothing productive, ate mercury laden batteries like lemon drops and simply caroused around the floor occasionally popping their little plastic spark wheel ray guns out of their chest to shoot at imaginary enemies. They did entertain however, and they inspired. By 8 or 9 I was working on my first robotic hand driven by a windshield wiper motor. Nothing world shattering but it did function. If it does nothing more than entertain or provide amusement for a second or two then it has done more than many humans I have known and proven itself more useful. IMHO Medodan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211511",
"author": "notmyfault2000",
"timestamp": "2010-11-12T18:58:54",
"content": "It may be from a webcomic, but I think Boxbot fits the “useless” description very nicely ;3http://www.gunnerkrigg.com/archive_page.php?comicID=440http://www.gunnerkrigg.com/archive_page.php?comicID=205http://www.gunnerkrigg.com/archive_page.php?comicID=418I’m sure there are more examples, but I don’t want to search through the entire archives yet again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211582",
"author": "ScissorFeind",
"timestamp": "2010-11-12T22:23:44",
"content": "The stupidest robots I know:http://www.myspace.com/algoandtherhythms",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212922",
"author": "Alpha",
"timestamp": "2010-11-15T16:58:35",
"content": "when the robot apocalypse happens, and it will, the robots will remember the day you made them all feel stupid. >:[",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.504581
|
||
https://hackaday.com/2010/11/11/under-desk-rgb-keyboard-lighting/
|
Under-desk RGB Keyboard Lighting
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"c++",
"desk",
"keyboard",
"led",
"light",
"rgb"
] |
[Jay Collett] was having trouble seeing his keyboard when the room was dim. But throwing a light under the desk just didn’t seem cool enough. Instead he built
an RGB light board that is controlled by his desktop
. The board is based around an ATmega328 with the Arduino booloader. He etched a single-sided PCB to connect it to a group of five RGB LEDs, with a programming header for an FTDI cable. The board communicates with a PC via serial connection, with a C# control application that [Jay] coded to control the color. We’ve embedded a couple of videos after the break but check his page for a package of code and hi-res pictures.
If you want something cool that’s a little bit less work to build check out the EL-wire keyboard
from this links post
.
[youtube=http://www.youtube.com/watch?v=dtvuBaSUJco&w=470]
[youtube=http://www.youtube.com/watch?v=H2rnBi3CSaE&w=470]
| 34
| 34
|
[
{
"comment_id": "211049",
"author": "fartface",
"timestamp": "2010-11-11T22:20:23",
"content": "I just bought a backlit keyboard.far better solution that this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211050",
"author": "sowhat",
"timestamp": "2010-11-11T22:21:04",
"content": "So what? That’s about the most basic thing anyone can build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211054",
"author": "aq",
"timestamp": "2010-11-11T22:36:58",
"content": "he needs to see his keyboard to type?!n00b n00b n00b n00b n00b",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211057",
"author": "MS3FGX",
"timestamp": "2010-11-11T22:39:06",
"content": "I have to agree, the first thing I thought when I saw this was “Just get a lighted keyboard…”, but there is a certain cool factor to his build.On the other hand, it looks like a very poor keyboard light. It doesn’t seem to light anything up but the center of the board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211059",
"author": "Concino",
"timestamp": "2010-11-11T22:42:43",
"content": "This is Arduino 101 isn’t it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211060",
"author": "GadgetFreak",
"timestamp": "2010-11-11T22:43:28",
"content": "Buying is for losers, building is better!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211063",
"author": "sd",
"timestamp": "2010-11-11T22:53:20",
"content": "I don’t agree with the above comments. I think this is a classic hacker’s solution to the problem of keyboard visibility. Buying retail is so passé!However, I do loathe the idea of yet another process running on the PC for managing the device. Use a USB port for the power supply but what’s wrong with a simple momentary button to cycle through the colour presets?And of course, I expect v2 will have more LEDs, spread further apart.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211064",
"author": "Angelo",
"timestamp": "2010-11-11T22:54:26",
"content": "People is tough/rude here with their comments. Any project, even the smaller ones, are important. They can inspire others, explain basic things to other users, etc. Arrogance and toughness are two problems you US people must learn to leave behind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211071",
"author": "zool",
"timestamp": "2010-11-11T23:08:44",
"content": "i hate keyboard trays",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211095",
"author": "Zae",
"timestamp": "2010-11-11T23:22:42",
"content": "Second the anti-keyboard tray comment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211098",
"author": "TTSDA",
"timestamp": "2010-11-11T23:30:36",
"content": "Cool project, people say there are retail backlit keyboards that work better than this, So what ? This project can inspire other “Hackers” and you can learn from it, What can you learn from a retail backlit keyboard? Why do you people are allways so arrogant?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211100",
"author": "fluidic",
"timestamp": "2010-11-11T23:35:00",
"content": "Cool. Now use it for ambient feedback, make it mean something. Jack it in to your health bar in WoW if you have to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211104",
"author": "Masta Squidge",
"timestamp": "2010-11-11T23:39:30",
"content": "fluidic took the words out of my mouth.Why not rig something up like the ambient light deals those TVs have (whatever thats called, brain fart) and base it off your monitor?That way you have light on the keyboard at all times, but it isnt any more distracting than the light coming from your screen to begin with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211152",
"author": "space",
"timestamp": "2010-11-12T00:59:48",
"content": "simple yet functional modification:sand blasted transparent plastic or glass tube with one LED at each side will light all of your keyboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211159",
"author": "CalcProgrammer1",
"timestamp": "2010-11-12T01:17:05",
"content": "@sdButtons really limit the features of any device, if you use the serial port you can go back and add in more features later and all you have to change is the software. Plus with PC-side control you can write monitoring scripts (for email, temperature, time, whatever) to control the lights or flash them to music. I did a similar mod but to the LED fan in the side of my case and now I can adjust the color of each LED, with a Processing script for audio analysis it can turn into a cool visualizer with any media player.I personally would have wired each LED independently, it eliminates the need for transistors and you can do light patterns, with software PWM you can do full color control over each LED.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211174",
"author": "Tim",
"timestamp": "2010-11-12T02:20:08",
"content": "I third the anti-keyboard-tray movement. Stupidest desk accessory ever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211184",
"author": "Erik Johnson",
"timestamp": "2010-11-12T03:05:34",
"content": "The LEDs are all pointed in one direction – they should be fanned out.I also cast my anti-keyboard-tray vote :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211185",
"author": "bward",
"timestamp": "2010-11-12T03:06:23",
"content": "i was high, but she was the sky…oh baby, I was boundfor mexico…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211188",
"author": "Greg",
"timestamp": "2010-11-12T03:23:19",
"content": "Some people are just mad that they have not had projects featured here and so they have to hate. If your project is so much better than this one then submit it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211237",
"author": "aara",
"timestamp": "2010-11-12T05:05:54",
"content": "Arduinos: so childish a kid would rather use it to power led lighting instead of learning to type properly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211241",
"author": "NIXIE n00b",
"timestamp": "2010-11-12T05:30:07",
"content": "Was I seeing things or was there an ICE tube clock on his desk?I be jealous!(I also hate keyboard trays)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211248",
"author": "blue carbuncle",
"timestamp": "2010-11-12T05:53:49",
"content": "lolAndrew, you can’t be serious about these pancakes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211264",
"author": "M4CGYV3R",
"timestamp": "2010-11-12T06:32:22",
"content": "What is this I don’t even? Son, I am disappoint!Shopping at Ikea? Give me a break.A REAL maker capable of writing some code like that shouldn’t have any need to see the keyboard. If you still look at your hands when you type, go download Mavis Beacon or something and fix your technique.Multiple videos, without one decent shot of the device. Quality documentation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211269",
"author": "Rupin",
"timestamp": "2010-11-12T07:04:25",
"content": "Why do you need color led’s? is the purpose of making the circuit to light up the keyboard or what?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211273",
"author": "Ty",
"timestamp": "2010-11-12T07:33:16",
"content": "Nice start on a good project. With some refinement and tips from the some of the comments this could be a great little mod.For all the dorks ripping on the post, give this guy a break. Not everybody sits in there basement building super computers and robots to take over the world. You gotta start somewhere and any hacker/gearhead/programmer with a respect for thinking outside the box and being creative would give this guy props for at least doing something besides going to walmart.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211304",
"author": "matt",
"timestamp": "2010-11-12T08:37:22",
"content": "He’s listening to CAKE!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211321",
"author": "Matt",
"timestamp": "2010-11-12T09:01:54",
"content": "I like my keyboard tray. It keeps food and dust off my keys and hides the KB from my baby…. Also inspired by the ideas here is doable for complete noobs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211329",
"author": "mixadj",
"timestamp": "2010-11-12T09:32:58",
"content": "@fluidic: Thats what I was just thinking when I read this…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211380",
"author": "sd",
"timestamp": "2010-11-12T12:26:18",
"content": "@CalcProgrammer1Good point, perhaps I’m a little OCD for discrete devices? :) If the builder wants to keep the option to add features like temperature monitoring then this is definitely the way to go.You can add extra functionality to a stand-alone unit though. Just re-flash the micro-controller. One can create some very good single button interfaces to control the new features.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211384",
"author": "davo1111",
"timestamp": "2010-11-12T12:34:55",
"content": "why not just buy a computer neon? and stick it under there?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211413",
"author": "Fallen",
"timestamp": "2010-11-12T14:15:24",
"content": "Looks like it could use a diffuser.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211495",
"author": "Dont Panic",
"timestamp": "2010-11-12T18:23:48",
"content": "Great hack, sir! Looks fun and practical. Etched your own board for an Arduino–hard core!What I don’t get is the nerd rage happening in the comments… is this not a hack? Go back to Digg ya kiddies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211498",
"author": "fluidic",
"timestamp": "2010-11-12T18:36:35",
"content": "@DPNo, this is not a hack, this is a set of LEDs controlled over a serial connection.A hack implies that he took one or more things, figured out how they work, and then made them work contrary to their “intended” modes of operation to achieve an interesting result (with many potential values for “interesting”).Doesn’t mean it’s not worthwhile, doesn’t mean it can’t be used in interesting ways…but “hack” does not apply.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212002",
"author": "saimhe",
"timestamp": "2010-11-13T18:59:05",
"content": "@M4CGYV3RA quick glance at keys now and then spares lots of re-typing time. No typing technique can ensure correction-free work if there was no initial alignment. When the single source of light is the screen, my wpm drops a few times. Those tiny notches on F and J keys, perhaps they work for blind people but I won’t ever be satisfied about how quick I find them. At least the keyboard should have some tiny, non-blinding reference lights at the corners.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.641473
|
||
https://hackaday.com/2010/11/11/diy-vaporizer/
|
DIY Vaporizer
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"brass",
"copper",
"mason jar",
"soldering iron",
"vaporizer"
] |
Here’s
a DIY vaporizer build
. It uses a 30 watt Radio Shack soldering iron as a heat source that is regulated with a common dimmer switch. This is done by removing the soldering tip and replacing it with threaded rod attached to a brass pipe fitting assembly. This is housed inside of a Mason jar with a copper pipe for air intake and another for output. Not surprisingly the creator tipped us off anonymously, saying that this a “smoking accessory”. A bit of searching and we came across this Wikipedia article about
a Volcano Vaporizer
which sheds light on what one is used for.
We don’t condone using illicit substances. But even more so, we’re skeptical about breathing through this thing because of the warning that [Anon] included about noxious vapors put off by the epoxy putty when it heats up. Still, it’s an interesting build so we though we’d share.
| 93
| 50
|
[
{
"comment_id": "211014",
"author": "Copycat",
"timestamp": "2010-11-11T21:13:42",
"content": "+1 for the macgyver pot heads",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211015",
"author": "me",
"timestamp": "2010-11-11T21:18:10",
"content": "*thought",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211018",
"author": "NoBrainNeeded",
"timestamp": "2010-11-11T21:21:42",
"content": "Is this what Hackaday is coming to?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1016166",
"author": "Rudeboy",
"timestamp": "2013-06-15T12:24:42",
"content": "Hopefully.",
"parent_id": "211018",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "211019",
"author": "Ben",
"timestamp": "2010-11-11T21:21:54",
"content": "I don’t think the epoxy gets hot or anything, the warning is against any fumes that might still be lingering after it sets.Now, this would be perfect with that soldering iron temperature control project from a few days back.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "908887",
"author": "Shrinivas Sugandhalaya",
"timestamp": "2012-12-23T18:38:21",
"content": "You mean this project?…http://hackaday.com/2010/05/19/solder-station-hack-adds-temperature-control/",
"parent_id": "211019",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "211020",
"author": "Flixssoft",
"timestamp": "2010-11-11T21:25:45",
"content": "Nice Build, i did same basic idea about a year ago , cause the Vap i wanted was $300 canthey work as well as store bought and personaly I didnt use any epoxy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211024",
"author": "JayCollett",
"timestamp": "2010-11-11T21:27:18",
"content": "Now if only he had used the purple “my little pony” as the base…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211030",
"author": "Adrian",
"timestamp": "2010-11-11T21:42:26",
"content": "Awesome, this is just in time for me to make this for my girlfriend for christmas. Thanks hackaday!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211031",
"author": "dave",
"timestamp": "2010-11-11T21:45:28",
"content": "You’re not fooling anyone. You guys at HAD are such potheads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211033",
"author": "t&p",
"timestamp": "2010-11-11T21:48:46",
"content": "what are the copper pipes for?where do you put the weed at?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211036",
"author": "Taylor Alexander",
"timestamp": "2010-11-11T21:53:43",
"content": "“Not surprisingly the creator tipped us off anonymously.”Hah, not surprising? I dunno, here in California, no one cares if you smoke pot. If it were my project, I’d want some credit! I still haven’t gotten anything on HaD (for lack of submitting, if nothing else).But I have always been surprised at how much a vaporizer costs. It really seems like you could make one for much cheaper than what they tend to sell for!-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211037",
"author": "ehrichweiss",
"timestamp": "2010-11-11T21:56:04",
"content": "I have a similar build where I bought a bunch of soldering iron elements and used them along with a temp controller/thermocouple and a few pieces of brass. I’ll definitely check out this build though..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211041",
"author": "Anon",
"timestamp": "2010-11-11T22:05:01",
"content": "Just so nobody gets hurt, all the MMJ forums pretty much say to stay away from these homemade devices, and those guys are huge potheads",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211042",
"author": "Hirudinea",
"timestamp": "2010-11-11T22:05:14",
"content": "Finally, somthing I can use!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211043",
"author": "dext0rb",
"timestamp": "2010-11-11T22:07:48",
"content": "i came across this forum once, had a couple DIY vapes on there. i havent read much of the forum itself though, so i cant vouch for it.http://fuckcombustion.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211046",
"author": "FellowHacker",
"timestamp": "2010-11-11T22:14:20",
"content": "Down with hope, up with dope!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211055",
"author": "absolutezero",
"timestamp": "2010-11-11T22:38:07",
"content": "I was working on a prototype a year or so ago. Not quite a fan of the bulb-style, desired something that could be used for whips (vapor bros) and bags (volcano). Ran into a few issues that kept it from ever getting off of the ground.Ni-chrome wire and Pyrex tubing are pretty cheap, but I couldn’t figure out how to connect the glass together in an airtight fashion that was also safe under high heat (outside of big spending on a torch when I’ve never blown glass).Other than that, coiling a heating element, working with a thermocouple, running a blower, and tying it all together with a microcontroller and some buttons and a display is rather easy.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "908888",
"author": "Shrinivas Sugandhalaya",
"timestamp": "2012-12-23T18:44:55",
"content": "No need for a microcontroller. It’s just a basic control system, as long as (1) you know your target temperature, (2) you are able to use quality parts, and (3) you can calibrate/test it, you should be good to go.",
"parent_id": "211055",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "211056",
"author": "Decius",
"timestamp": "2010-11-11T22:38:45",
"content": "Lol, funny because I was thinking of this before and how you could attempt this at such a low cost. There is much use in this project as the Consumer doesn’t have to pay 100-300$ (Assuming this thing works equal to a real vap)How does one empty the device after it has brewed a toke?aha",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211061",
"author": "RadBrad",
"timestamp": "2010-11-11T22:45:23",
"content": "Dude…….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211067",
"author": "vonskippy",
"timestamp": "2010-11-11T23:04:07",
"content": "Guess I’ve been a parent too long – when I hear “vaporizer” I think vicks vapor rub and coughing kids.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211070",
"author": "Erik Johnson",
"timestamp": "2010-11-11T23:06:50",
"content": "*pffft* … wait … what?oh, awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211090",
"author": "Spork",
"timestamp": "2010-11-11T23:20:08",
"content": "Ok, for the potheads who “don’t get it” or the non potheads who are wondering how this thing works:The two lengths of tubing coming out of the base are a carburetor and a mouth piece. In the center there is the heater attached to a copper fitting… this is where the pot goes. As it heats, you plug the tubing lengths and the chamber fills with smoke. You breathe in on one side and uncap the other to evacuate the chamber.The advantage here is that you’re not inhaling burnt plant matter read:Carbon. You’re only breathing what you burn off the plant, which happens to be (at least partly) what gets you high.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211094",
"author": "waffles1200",
"timestamp": "2010-11-11T23:22:15",
"content": "ha! i made this exact one in high school, those were the daze! my dad took back his soldering iron and my mom took back her mason jar. one tip on this design is that you can find a screw that fits the threads of the soldering iron and buy a small metal bowl with a hole in it, and put together. then there’s the ‘ol paper towel roll with dryer sheets or panty hose filled with activated carbon in it to blow vapsmoke through to kill odor. ha! i love macguyver stoners, the other day i was waiting in my car for a freind and i decided to make a hack as fast as i could with what i had in my car. i had a 9 vol battery in my pocket, a guitar string from a squire strat that i keep in my car, and a pen. hmm electro magnet. then my friend showed up and i said f*ck it, let’s go bowling",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211099",
"author": "element_leader",
"timestamp": "2010-11-11T23:32:24",
"content": "Hot air popcorn popper?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211101",
"author": "M4CGYV3R",
"timestamp": "2010-11-11T23:38:14",
"content": "@copycatDude, what about me?But srsly, I prefer a bong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211106",
"author": "biozz",
"timestamp": "2010-11-11T23:42:21",
"content": "@M4CGYV3Rsame here but when you vape you her 99% of the THC vs a bong where its like 75% … unless you drink the water but that shit stinks i could never immagion drinking itvaping is also much healthierto everyone else there is nothing wrong with smoking weed a fair chunk of the population does it and many of thoes people you would never expect",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211107",
"author": "biozz",
"timestamp": "2010-11-11T23:46:10",
"content": "and regarding the epoxy deal THC vapes at around 230*f when epoxy i believe can withstand up in to the 500s",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211108",
"author": "NatureTM",
"timestamp": "2010-11-11T23:47:56",
"content": "I’m surprised you wouldn’t make one copper pipe shorter. That way you could be sure the chamber was completely flushed, and you wouldn’t have to worry about some of the “good stuff” getting stuck at the bottom of the jar. That’s what, uh, my friend did when he made his own.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211110",
"author": "Frek",
"timestamp": "2010-11-11T23:53:01",
"content": "Wow HAD is now Pot projects’r’us !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211113",
"author": "HeadHunter",
"timestamp": "2010-11-12T00:02:40",
"content": "Cough it works ….. COUGH",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211138",
"author": "Andrew",
"timestamp": "2010-11-12T00:21:34",
"content": "Link to the original blog –http://tehvaporizer.blogspot.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211141",
"author": "Metalwolf",
"timestamp": "2010-11-12T00:35:24",
"content": "I get that people want others to know how they did something but is posting about smoking isn’t that great of an idea. If i was a cop and not up to my quota i would just go on facebook (and now hackaday) and look up “weed”. There are so many confessions online that i could probably break a record.Learn how the internet works and learn that you are not anonymous.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211142",
"author": "chronictronic",
"timestamp": "2010-11-12T00:36:26",
"content": "Made a similar rig in 1993 using a car cigarette lighter as the element. Air flowed in through the element, and then a vertical output pipe drew from the top of the jar down, through an L-fitting, and out the front through a tube.Would be great to see this extended to include a microcontroller for temperature and air flow control, maybe with a Volcano-like vapor trapping system.Even better: check out the gun-like vaporizor that Stacey Keach (Sgt. Stedanko) tokes on in Nice Dreams– compact with a little blower.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211150",
"author": "emilio",
"timestamp": "2010-11-12T00:54:13",
"content": "totally built one in high school very similar to this… it worked reasonably well, but i didn’t have a proper way to calibrate it. a good addition is a little water box to cool and moisten the air.illicit, though? my state-legal doctor’s recommendation would have something to say about that, if it weren’t an inanimate piece of paper.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211151",
"author": "biozz",
"timestamp": "2010-11-12T00:55:20",
"content": "@Metalwolfyou can walk up to a cop and say “i smoke weed all the time” and there is NOTHING that cop can do … you can show that cop pictures of you smoking weed and there is NOTHING that cop can do",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211153",
"author": "Tech B.",
"timestamp": "2010-11-12T00:59:54",
"content": "Never smoke from copper. Or any thing that uses heated copper.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211160",
"author": "Scott",
"timestamp": "2010-11-12T01:17:14",
"content": "I’ve seen these made before with much simpler materials. Soldering iron w/ a dimmer switch spliced into the power cable for temp control. Glass fishbowl with silicone caulk around the rim, turned upside down on the conical reflector for a flood light. Thimble with a hole punched in it on top of the iron with the original tip. Whole thing supported inside a decorative birdbath filled with gravel. Four outlet tubes made of fish tank tubing which happened to fit perfectly in the holes in the reflector. Worked like a charm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211163",
"author": "Maave",
"timestamp": "2010-11-12T01:25:55",
"content": "Interesting, although I wish he had put a cross-section diagram or something similar. I might make one for the heck of it, and I don’t even smoke.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211165",
"author": "Tripnode",
"timestamp": "2010-11-12T01:33:56",
"content": "ya i was thinking about some flaws in this vap on yes the copper and the epoxy.Smoke in my opinion should never touch anything but glass and or water befor hitting your lungs(wips are alright but still add a funny tast)……I know that store bought vaps are expensive but worth it because most of them use food grade materials, were im from ive had cops hold my bubbler look at it smell my jar of bud and give it all back you guys are paranoid!! ive used both home made and bought. if made right there great but be creative and use safe materials you guys should cheack outhttp://www.myiolite.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211169",
"author": "biozz",
"timestamp": "2010-11-12T01:52:04",
"content": "@Maavewould make a good give for a friend or even throw some incense herbs in it and remove the dome and have an incence auto-burner",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211175",
"author": "anon",
"timestamp": "2010-11-12T02:35:06",
"content": "I’ve always posted here as anon.as for the noxious fumes that was just when the epoxy was setting around the handles and such. The only thing that gets hot is the end of the soldering iron with the receptacle, otherwise the entire thing stays cool.Word of caution I didn’t include in the original blog. DON’T USE COPPER. BRASS ONLY!Copper precipitate is very bad for you to breath.I honestly didn’t think they were going to post this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211176",
"author": "therian",
"timestamp": "2010-11-12T02:35:53",
"content": "The whole point of vaporizer is helth benefits. Homemade one are likely ro have toxic components especially when they heated so I will recommend not to DIY. (To those who will scream about hacking rather than buying I ask if they making medicine at home too or biying it)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211181",
"author": "Scott",
"timestamp": "2010-11-12T02:58:23",
"content": "I hope they don’t play alcohol vapor games with that….*BOOM!!!*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211183",
"author": "Drew",
"timestamp": "2010-11-12T03:04:52",
"content": "i built one within 3 hours of reading this, then i tweaked the hell out of the prototype, now its more of a hookarizer it sucks through water so its cool but still gets you high.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211186",
"author": "effigy",
"timestamp": "2010-11-12T03:08:16",
"content": "@metalwolf you’re dumb, and a pussy, learn how enforcement ACTUALLY works sometime….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211187",
"author": "anon",
"timestamp": "2010-11-12T03:18:59",
"content": "A whole lot less ass-pain than I expected here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211190",
"author": "M4CGYV3R",
"timestamp": "2010-11-12T03:35:52",
"content": "@biozz I had a volcano, but it was too tough trying to deal with the bags and valves and heater pieces and all. Just too much work. Plus not a great deal at $500+.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211198",
"author": "pwnr",
"timestamp": "2010-11-12T03:48:23",
"content": "Man, I thought this was going to be a hack dealing with creating a vaporizer gun for vaporizing people ;-(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211221",
"author": "Ch0MmyT0ng",
"timestamp": "2010-11-12T04:04:31",
"content": "I like to break off a couple fist-sized chunks, toss ’em in the blender, dump it in a sock, and slide that sock over the end of the hair dryer, with the heat on. i call it vap-o-room. even better, though. blender+herb+everclear. better than that? coffeegrinder+herb+everclear. better than that? coffeegrinder+herb+mynostril. better than that? elbowb0ngz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211228",
"author": "anthonyd",
"timestamp": "2010-11-12T04:23:40",
"content": "I made one of those about 7 years ago with a solder iron, a thimble, and a pickle jar. There’s plans for those all over the internet I’m surprised its posted on here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211229",
"author": "Chuck",
"timestamp": "2010-11-12T04:29:37",
"content": "I realize this is a hacking site but come on guys let’s have some standards. What gets posted next? Some hack to make rufies or a great way to steal your neighbor’s bank account number?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "946658",
"author": "Fábio",
"timestamp": "2013-01-24T21:02:03",
"content": "maybe there are people that do not think like you.. if the topic was: Make alcohol at Home! that wouldn’t be a problem.",
"parent_id": "211229",
"depth": 2,
"replies": []
},
{
"comment_id": "4917572",
"author": "Rachel Sweeney",
"timestamp": "2018-08-25T01:35:16",
"content": "Are you really comparing smoking weed to stealing from someone’s bank account… come on -_-",
"parent_id": "211229",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,336.835783
|
||
https://hackaday.com/2010/11/11/gum-ball-maze-updated-now-with-robots/
|
Gum Ball Maze Updated… Now With Robots!
|
Mike Szczys
|
[
"home entertainment hacks",
"Toy Hacks"
] |
[
"accelerometer",
"gum ball",
"lynxmotion",
"maze",
"rube goldberg"
] |
In what is surely becoming an ever-growing Rube Goldberg machine, [Dan] updated his
gum ball dispenser to include a robot arm
. We looked in on this human lab-rat experiment that
rewards successful maze navigation with bubble-gum
just about a year ago. As you can seen in the video after the break he’s added several new features to delight users. The original had a maze actuated by an accelerometer and that remains the same. But when the device fires up, the wooden ball is moved to the start of the maze by a Lynxmotion robotic arm. That arm is mounted on rails so it can also move to deliver the gum ball after a successful run. There’s also an anti-jamming feature that shakes the gum ball dispenser to ensure you don’t come up empty.
Whether
playing chess
or being
controlled by a mouse
the Lynxmotion has been quite popular lately. [Dan’s] solution uses a vacuum pump to grab onto the spheres (both wooden and gum), similar to the method used with the
CNC pick and place
from a while back.
[youtube=http://www.youtube.com/watch?v=78ucwJMDe7o&w=470]
[Thanks Chris]
| 5
| 5
|
[
{
"comment_id": "210977",
"author": "Eirinn",
"timestamp": "2010-11-11T20:34:07",
"content": "bubble yum!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211004",
"author": "grenadier",
"timestamp": "2010-11-11T20:58:33",
"content": "Candy of the future rait thar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211069",
"author": "ChikeNES",
"timestamp": "2010-11-11T23:06:46",
"content": "I saw this IRL at the Chicago Hobby Show. It’s nice to finally know what’s driving it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211105",
"author": "M4CGYV3R",
"timestamp": "2010-11-11T23:40:44",
"content": "Put a longer-stroke higher-volume pump on those suction tubes so it’s not such an annoying noise.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211760",
"author": "Hirudinea",
"timestamp": "2010-11-13T06:00:57",
"content": "Wouldn’t it just be easier to buy gum?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,336.737804
|
||
https://hackaday.com/2010/11/11/dungeon-crawler-game-for-im-me-and-linux/
|
Dungeon Crawler Game For IM-ME (and Linux)
|
Mike Szczys
|
[
"Linux Hacks",
"Microcontrollers"
] |
[
"game",
"im-me",
"sprite",
"video game"
] |
[Joby Taffey] takes the prize for the first
completed homebrew game for the IM-ME
. Over the last few weeks we’ve seen [Travis Goodspeed]
working with sprite graphics
, and [Emmanuel Roussel]
developing game music
for the pink pager. But [Joby] didn’t really use either of those.
[Travis’] sprites were using a framebuffer that fills up a lot of valuable RAM. [Joby] decided to draw the room screens (all of them have been stitched together for the image above) as a one-time background image to keep the memory free. From there, the screen is updated in 8×8 blocks based on cursor movement. He also decided not to add music as he feels the high-pitched piezo is not capable making sound without driving everyone crazy.
Source code is available and for those of you who don’t own this pretty handheld, the game can also be compiled in Linux.
| 14
| 14
|
[
{
"comment_id": "210930",
"author": "Requiem",
"timestamp": "2010-11-11T19:06:12",
"content": "Heh, agree with the piezo music. That get annoying fast.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210934",
"author": "japkin",
"timestamp": "2010-11-11T19:18:52",
"content": "Main blog link (http://blog.hodgepig.org/2010/11/11/im-me-roguelike/) gives me:Error establishing a database connection",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210938",
"author": "ferdi",
"timestamp": "2010-11-11T19:25:47",
"content": "wow nice worka agree to with the piezo musicit hurt your ears and drive your dog and cat grazzy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210960",
"author": "dmcbeing",
"timestamp": "2010-11-11T19:50:38",
"content": "Sorry to be a jerk but cant resist:AHHH MY EYES!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210968",
"author": "Pilotgeek",
"timestamp": "2010-11-11T20:14:11",
"content": "My first playthrough of Doom was on a Compaq Contura 486dx without a sound card. The whole game was played with pc speaker sound effects. You get used to it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210975",
"author": "ferdi",
"timestamp": "2010-11-11T20:27:30",
"content": "pilootgeega pc speaker on a motherboard is not thesame as a piezo speakerpiezo speaker is one metal disck found in a whatch whit alarm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210985",
"author": "Akoi Meexx",
"timestamp": "2010-11-11T20:34:36",
"content": "@ferdi: Most early pc system speakers WERE a piezo speaker, mounted on the motherboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210987",
"author": "Akoi Meexx",
"timestamp": "2010-11-11T20:37:14",
"content": "Cited source for above post:http://en.wikipedia.org/wiki/PC_speaker",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211051",
"author": "Joby Taffey",
"timestamp": "2010-11-11T22:27:08",
"content": "There’s nothing wrong with piezo sounders – I’ve done a couple of microcontroller PCM projects in the past with them.But, in the IM-me it’s wired up something like this:http://www.rebelhosts.com/tt/te/p59.htmEverything musical I tried was horrible until you get up to the higher frequencies, then it’s so loud it’ll make your ears bleed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211225",
"author": "Trollicus",
"timestamp": "2010-11-12T04:16:39",
"content": "When I was working as a student helper doing desktop support at my University we had a few people who were constantly complaining about everything and causing 90% of the work load due mostly to their own ignorance and refusal to follow directions.One day I installed a little file on one of these peoples pc’s (an exe run from win.bat that then ran windows, the batch file was hidden in the dos path) This way if you looked at the autoexec.bat it would just look like it was loading windows, pre-win 95 days. It would randomly play a very high pitched noise from the pc speaker and only went off once every few hours for about 2 minuets.I would tell them “Sorry I can’t hear anything”, even if it was going off while I was working on their PC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211425",
"author": "Anon",
"timestamp": "2010-11-12T14:57:07",
"content": "Kinda neat, but using C is a bit lame compared to assembla.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211486",
"author": "jmlb",
"timestamp": "2010-11-12T17:37:14",
"content": "makes me think of net hack some how:)Good job Joby",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211774",
"author": "Gdogg",
"timestamp": "2010-11-13T06:40:28",
"content": "@Anon: Using C isn’t lame at all. Why use assembly when a compiler can probably beat you at optimization?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214144",
"author": "Ben S",
"timestamp": "2010-11-18T01:31:16",
"content": "@Akoi Meexx: Actually, most early PC speakers were real speakers. It was only later on when everyone had sound cards and the PC speaker was only needed for POST beeps that they changed to cheaper, smaller piezo speakers.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.064236
|
||
https://hackaday.com/2010/11/11/moving-a-resistor-for-evalbot-power-when-programming/
|
Moving A Resistor For EvalBot Power When Programming
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"arm",
"evalbot",
"power",
"stellaris",
"ti",
"usb"
] |
[Riley Porter] posted a picture of
his EvalBot USB power hack
. In the photo above we’ve put a box around D6 and D7. The development board ships with a 0 Ohm resistor in the D7 location, patching in power from the USB-B connector labeled USB DEVICE. He found that by moving that resistor to D6 he can power the board from the USB-B connector labeled ICDI.
That connector is the In-Circuit Debug Interface. TI sent us an EvalBot bundle so we pulled it out and tried it ourselves. If you plug in the ICDI it doesn’t power the board, and no USB devices register. Shorting the D6 pads changes this and the following USB device registers:
Bus 002 Device 062: ID 0403:bcd9 Future Technology Devices International, Ltd Stellaris Evaluation Board
So it looks like you need to have two USB connections or be using batteries in order to program the board via USB. The uC/OS-III hardcover book that ships with the EvalBot bundle includes board schematics. We took a look and were surprised to see that they show diodes installed on both pads. Rev A of the online schematics have been corrected, showing an omitted diode on D6 and the 0 Ohm resistor on D7. Images of both schematics are included after the break.
It would have been nice to see a selector switch installed here to give you a little more flexibility when prototyping.
Schematic from uC/OS-III page 700:
Stellaris Robotic Evaluation Board Schematics Rev A (
available here
):
| 24
| 24
|
[
{
"comment_id": "210912",
"author": "Chris Muncy",
"timestamp": "2010-11-11T17:49:29",
"content": "We started discussing this athttp://ti-evalbot.proboards.com/index.cgi?board=general&action=display&thread=25To me, this was a HUGE oversight on TI’s part but it’s easily fixed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210914",
"author": "Ben C",
"timestamp": "2010-11-11T18:01:10",
"content": "I would highly recommend using a Schottky diode in D6 instead of a 0 ohm resistor. Using a diode protects your computer from over voltages that may be seen due to batteries, motors back feeding or another supply that might get plugged in. No need to accidentally blow up a USB port, a simple diode will cost less than a quarter and can save your motherboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210918",
"author": "biozz",
"timestamp": "2010-11-11T18:17:21",
"content": "mine gets shipped out on the 12th of next month and i might try this@Ben Cyes i agree if you have one on hand or want to wait for one to ship",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210932",
"author": "Daniel N.",
"timestamp": "2010-11-11T19:10:42",
"content": "The power switcher onboard is pretty good at preventing overvoltages, the reason for the lack of diode is that the draw on the batteries during motor use would drop the voltage to the programmer enough to disconnect it. Also, the motors on startup can draw too much current from the USB supply, causing the entire board to power off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210935",
"author": "biozz",
"timestamp": "2010-11-11T19:19:12",
"content": "another questionis a 0 ohm resistor even a resistor because it does no resisting O_o",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210965",
"author": "Jac Goudsmit",
"timestamp": "2010-11-11T20:00:16",
"content": "@biozz: It’s one of those Resistance is Futile things…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210967",
"author": "Dan",
"timestamp": "2010-11-11T20:07:45",
"content": "Someone have a link to the recommended software stack for developing on the platform? I managed to get one, but haven’t had any research time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210972",
"author": "webobject",
"timestamp": "2010-11-11T20:22:08",
"content": "What makes it a zero ohm resistor rather than a zero farrad capacitor or a zero legged, bodied, headed armed and tailed kangaroo?Is a zero ohm resistor stupid talk for a non resistive link between components?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210988",
"author": "alankilian",
"timestamp": "2010-11-11T20:39:33",
"content": "A zero Farad capacitor is pretty much what you’ve got when there’s nothing installed in location D6.So, you’re replacing a zero Farad capacitor with a zero Ohm resistor :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210990",
"author": "alankilian",
"timestamp": "2010-11-11T20:46:31",
"content": "It’s interesting that DigiKey carries six different size 1206 1/4 Watt zero Ohm resistors IN STOCK!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210992",
"author": "goldscott",
"timestamp": "2010-11-11T20:48:26",
"content": "I’ve got a bag of infinite ohm resistors around here somewhere…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210995",
"author": "NatureTM",
"timestamp": "2010-11-11T20:53:00",
"content": "TI’s got a couple of those 0 ohm resistors around the crystal pad on the Launchpad as well. It threw me for a loop the other day when I had to solder some load caps onto the board for a HF crystal I was installing. I guess they must use them as placeholders in case they want to put something else there in a future revision.Also, I wish TI would have shipped the EvalBot in the order that they were purchased. I have a lower order number than the people who are getting theirs. I also have a ship date of 11/4 for a couple more Launchpads, but they’re still stuck in “Processing.” It’s great that the EvalBot and Launchpad are so cheap, but frustrations with the estore will probably leave me a bit unsatisfied in the end.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211011",
"author": "uC",
"timestamp": "2010-11-11T21:07:39",
"content": "Zero Ohm resistors are extremely common and very handy.They are commonly used to activate/deactivate portions of pcb at population time. It serves the exact same purpose as a jumper, but is much smaller.There are other reasons, occasionally it can also be used to adjust R values in case mods need to be made.Hilarious, yes. Practical yes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211025",
"author": "JackTheVendicator",
"timestamp": "2010-11-11T21:30:10",
"content": "They’re also used to exclude unpopulated parts of a board (if not soldered in) and as small fuses in signal lines to save hardware from computer faults (they hopefully “pop” before your computer does).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211026",
"author": "JackTheVendicator",
"timestamp": "2010-11-11T21:31:27",
"content": "Sorry, I meant connection faults.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211027",
"author": "mjrippe",
"timestamp": "2010-11-11T21:34:00",
"content": "I think these have been discussed here before…but the zero ohm resistor is much easier to use in automated assembly systems than a jumper wire.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211350",
"author": "strider_mt2k",
"timestamp": "2010-11-12T11:10:22",
"content": "Yep I see 0-Ohm resistors all the time where I work.-way easier than a jumper at SMD scales.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211371",
"author": "polossatik",
"timestamp": "2010-11-12T12:06:43",
"content": "“The uC/OS-III hardcover book that ships with the EvalBot bundle includes board schematics”…AFAIK the book is not in the 25$ bundle that you could order, guess you guys got an extra :).Is the schematic somewhere online (could not locate it that easy)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211372",
"author": "polossatik",
"timestamp": "2010-11-12T12:07:36",
"content": "ok, stupid. did not say the link.. need coffee",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211443",
"author": "ril3y",
"timestamp": "2010-11-12T16:00:57",
"content": "@Dan,I finally got some code running and debugging on the Evalbot last night. There are really 2 ways to go for a toolchain.. (high level i mean)1. Buy one. This way is Super easy. In fact. I used Code Sorcery Stellaris EABI. What you need to do is download the trial register and get a 30 day setup. However, its not done there. You also need to get the StellarisWare from TI. (its in a the form of an exe.. greeeat. So run on windows copy to linux, osx)2. Build one. This way is not easy. I am working on cross compiler now. Its been pretty hard so far. I have NOT got this option working yet.Long story short I plan on posting a blog with links for setting up the Evalbot for development. All of us who got the $25 special didnt get a book. Oh and to make things worse. TI officially does not support the evalbot as a “stand alone” dev platform. Not until q1 2011. Meaning, you have to get the book and run their $$$ RTOS if you want to dev for it now.I have been googling for a few days and I have not seen anyone else get code working on this evalboard. I will post a write up to my blog once its all setup and working however. If you want to start writing code now I would suggest just get the trial CS and the stellaris header files (stellarisware) and blinky blink!BTW, I ran CS on Linux (ubuntu 10.10) which is pretty cool since most Arm dev has to be done on windows… Oh and the personal CS dev environment is $99. So time * effort > $99?ril3yblog.synthetos.com <— Check back here. I will post it when its done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211445",
"author": "Daniel N.",
"timestamp": "2010-11-12T16:10:12",
"content": "Everyone who is having trouble programming the board:http://ti-evalbot.proboards.com/index.cgi?board=programming&action=display&thread=23I’m working on putting together test code for most of the peripherals (got the motors, oled, UARTs, and USB mouse working so far), I’ll post them on that forum when its ready.Programming in Windows is relatively easy, once I figure out the bootloader, Linux development should be trivial.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211488",
"author": "ril3y",
"timestamp": "2010-11-12T17:51:18",
"content": "@Daniel N.LOL, I just looked at your source code.. Its almost EXACTLY how I got blinky working :) I used PF4 and PF5 too. Cool stuff.Have you got GNU working ? Or just using IAR?Ril3y",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215066",
"author": "nutz4hs",
"timestamp": "2010-11-19T18:39:14",
"content": "they may have mistaken, i was one of the first hundred orders, i got the book and all for 25$ and it shipped within 2 weeks. dunno, maybe they ran out of the standard models and shipped what ever they had. :/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "320908",
"author": "Chris",
"timestamp": "2011-02-02T02:10:04",
"content": "Mine arrived a few days ago with D6 populated with the 0 ohm resistor rather than D7. It appears that TI is taking note of user feedback.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.476448
|
||
https://hackaday.com/2010/11/11/open-source-kinect-contest-has-been-won/
|
Open Source Kinect Contest Has Been Won
|
Caleb Kraft
|
[
"Kinect hacks",
"News"
] |
[
"adafruit",
"eff",
"knect",
"microsoft"
] |
Adafruit Technologies
has announced
the winner of the Open Source Kinect contest. [Hector], who
we mentioned
yesterday has won, providing both RGB and depth access to the device. Some of you were asking at that time, why the contest was not over yet. Well, Adafruit had to verify. The image you see above are of another user[qdot], verifying the drivers on his machine.
What is interesting is how Adafruit has chosen to close this contest. Not only are they giving [Hector] his prize money, they are also donating an additional $2,000 to
the EFF
who fight for our right to legally hack and reverse engineer our own equipment.
[Hector] is being generous as well, using his prize money to help pay for gadgets to hack with some teams he is involved with, mainly the iPhone Dev Team and the Wii hacker team “Twiizers”
| 25
| 25
|
[
{
"comment_id": "210886",
"author": "landon",
"timestamp": "2010-11-11T16:24:04",
"content": "damn straight.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210893",
"author": "JA",
"timestamp": "2010-11-11T16:42:36",
"content": "That didn’t take long :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210895",
"author": "mfunk",
"timestamp": "2010-11-11T16:59:01",
"content": "I would be very interested to learn how someone achieves such a feat. Where does one even begin to pick up these skills? I’m so jealous!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210897",
"author": "Gdogg",
"timestamp": "2010-11-11T17:11:27",
"content": "These are the kind of contests we need. Also, this was done quickly. Simply awesome.@mfunk: There’s a few different tactic. You can insert a snooper between the xbox and the kinect and see how data is passed (knowing it uses the well defined usb protocol) or you can connect it to your computer and try sending it whatever data and seeing how it responds (which is apparently how the guy who won did it).Not something I could do easily either, so I’m also jealous.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210899",
"author": "Mike",
"timestamp": "2010-11-11T17:15:32",
"content": "mfunk: By learning, experimenting, and hopefully learning some more.Congrats to Twiizers as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210907",
"author": "Peter",
"timestamp": "2010-11-11T17:36:25",
"content": "Very impressive…what was that, a week? Two? And well done to adafruit, for offering the challenge, and for supporting EFF.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210908",
"author": "Whoever",
"timestamp": "2010-11-11T17:37:57",
"content": "Wow, the whole contest was full of WIN in every possible aspect.Now to implement this in hax.. :-) so many ideas, $150 to save.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210910",
"author": "IceBrain",
"timestamp": "2010-11-11T17:41:34",
"content": "@Gdogg: according to the README, he got the logs from Adafruit which he used to work out the initialization and data format.http://git.marcansoft.com/?p=libfreenect.git;a=blob;f=README.txt;h=80598b4464074975f0c157e2cc20426056693402;hb=HEAD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210924",
"author": "mfunk",
"timestamp": "2010-11-11T18:36:25",
"content": "@Mike: Do you know where I should start with step one?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210928",
"author": "Hackius",
"timestamp": "2010-11-11T18:54:48",
"content": "I guess microsoft left that wide open",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210931",
"author": "Ben",
"timestamp": "2010-11-11T19:09:52",
"content": "I’m still learning to program. Can anyone explain to me what happens when you write to negative indexes on arrays, like he does with his Bayer conversion?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210971",
"author": "dext0rb",
"timestamp": "2010-11-11T20:21:55",
"content": "Ben:maybe it wraps around circular?so if you havechar string[5];string[4] == string[-1];not sure; code it up, add a watch variable and run thru with a debugger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211012",
"author": "error404",
"timestamp": "2010-11-11T21:09:26",
"content": "@Ben:I don’t see where he’s doing that. But to answer your question:In C, arrays aren’t really arrays. The variable itself is a pointer, and the [] operator is basically just shorthand for *(array + index). Accessing a negative index will access the space in memory that many elements before the array. Generally not what you’re looking to do…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211045",
"author": "PhilKll",
"timestamp": "2010-11-11T22:12:49",
"content": "@mrfunkI’m no where even close to this level of reverse engineering. But I’ve made some steps towards it. What worked for me was I found a device that provided source code, the Leapfrog Didj, plus it was woot.com cheap too. The source code is kind of like having the answers in the back of the book, so I could get a feel for embedded Linux, and the things that were going on. The Didj uses a special program to allow access to the storage on it, so I decided I wanted to make my own program. From there I had to learn a few things, USB stuff, SCSI commands, and with some help from the source code, I was able to, figure out what was going on, how it was doing it, why it was doing it, and then, I was able to manipulate it to my own needs. I had no prior experience before this, and had the same feelings you do towards it. This exercise helped me get my feet wet, get some ground to stand on, and then I could learn new things from there. Which is how it has seemed to go. Start out with something you do know, then push forward to new grounds, get an understanding for that, and repeat. I had actually started by doing some web stuff on it, because thats what most of my knowledge was, then just stepped thru the process until I ended up writing my first C program which allowed access to the usb drive. I think it helped that starting out, I had no specific goal, other than to learn about the device and process. So I could just go where it took me, with out getting overwhelmed I wasn’t turning it into some specific thing I wanted. You’ll find something that interests you, and go with it, you’ll find something to figure out, and when you do, you will be greatly rewarded for it, in the satisfaction you get. I know its not very specific, but reverse engineering seems more of a mind set, than raw technical knowledge. They both work together, but its completely different than building things, where you are in control of what does what. It also helps to find a group of people interested in the same device, for pointers and tips, or help on things when you get stuck, my program was held up for days cause I didn’t understand what enum did in C, it finally got brought up in conversation, and it was that eureka moment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211068",
"author": "Grayda",
"timestamp": "2010-11-11T23:05:59",
"content": "Dear Microsoft,HAW HAW!Love,The open source community",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211135",
"author": "PE",
"timestamp": "2010-11-12T00:15:41",
"content": "@Grayda, that seems a rather immature response, don’t you think? Yes, it’s impressive that the open-source community has reverse-engineered the protocol. It’s a testament to their creativity and skill as technical experts, and should be rightly celebrated as such. To deride Microsoft, on the other hand, disrespects many of the same engineers that made this possible in the first place. Do you honestly think they care any less about their work? Do you honestly think that they’re any less proud to have developed this product and brought it to market? Why on earth you’d want to shoot arrows at the very folks who are providing your hardware is beyond me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211145",
"author": "mfunk",
"timestamp": "2010-11-12T00:40:00",
"content": "@PhilKll: Thanks! Cool website by the way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211154",
"author": "cde",
"timestamp": "2010-11-12T01:02:13",
"content": "@ PE: Many of the same engineers who did their damnest to make this impossible, who willingly work with a company that threatens lawsuits and jail for those who “”tamper”” with the product.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211170",
"author": "PhilKll",
"timestamp": "2010-11-12T01:53:29",
"content": "@mrfunk, thanks for the compliment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211171",
"author": "PE",
"timestamp": "2010-11-12T02:05:47",
"content": "@cde, Then I’m guessing you don’t worry too much when the rest of the world lumps black-hats and white-hats together, or uses the term “hacker” in a derogatory context?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211249",
"author": "Jack",
"timestamp": "2010-11-12T05:55:25",
"content": "[Microsoft]: Don’t reverse engineer our products.[Hector]: You’re resistance only makes me harder.lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211276",
"author": "Necromant",
"timestamp": "2010-11-12T07:37:16",
"content": "Well, that was fast. Looking forward to get myself a kinect (I do not have an xbox) (There are only preorders avaliable in russia, and they are somewhat pricy – about 250-300 bucks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211343",
"author": "jcg",
"timestamp": "2010-11-12T10:34:37",
"content": "@cde: ethics alone won’t put food on the table. yeah it’s nice to sit on your high horse, but in the real world people need to earn money.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211393",
"author": "Fred",
"timestamp": "2010-11-12T13:14:12",
"content": "Looking forward to the Wii kit for Kinect ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211782",
"author": "Michael Bradley",
"timestamp": "2010-11-13T07:17:05",
"content": "And the quest continues:http://www.mattcutts.com/blog/open-kinect-contest/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.309246
|
||
https://hackaday.com/2010/11/11/japanese-micro-planes/
|
Japanese Micro Planes
|
Chris Nelson
|
[
"Robots Hacks"
] |
[
"aircraft",
"flight",
"servo"
] |
Some very well engineered
micro planes
(
translated
) have been buzzing around the net. The goal here is ultra light weight. These suped-up paper planes have a remarkable target weight of around
10 grams
(
translated
). The lighter the micro plane is the slower and more maneuverable it will be leading to some pretty
interesting
and
scary
applications. For controls it looks like many of the planes are using infrared receivers/transmitters (much like you would find in a TV remote hint hint). Getting the lightest plane possible has forced the designers to come up with some pretty ingenious tricks. For example, instead of using packaged servos they use a coil of wire wrapped around a rare earth magnet to control the flaps. You can see these home made “servos” in action after the break.
Some have taken a more classic approach and used
rubber band power
instead of a li-po/motor combo.
[via
Make
]
[youtube=http://www.youtube.com/watch?v=R9avqC4GYiA&w=470 ]
| 27
| 27
|
[
{
"comment_id": "210876",
"author": "Nathan Zadoks",
"timestamp": "2010-11-11T15:30:57",
"content": "Those aren’t servos, they are galvos (galvanometers)Servos are a DC motor with feedback.Galvos are what analog multimeters use, except without a needle attached. They’re very accurate, lightning-fast (they’re also used for laser shows/projectors) and can run open-loop. Oh, and did I mention that they’re damn easy to make?–Nathan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210879",
"author": "razorconcepts",
"timestamp": "2010-11-11T15:38:08",
"content": "Buy a micro for $100http://www.parkzone.com/Products/Default.aspx?ProdID=PKZ3380",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210880",
"author": "mike",
"timestamp": "2010-11-11T15:50:36",
"content": "Science Olympiad has had something like this as an event for almost 6 years now. For the last 3 years, they have had an ornithopter competition, which are supposed to be rubber band powered, they’re almost identical to the rubber band-powered one you liked to.Before that it was traditional prop planes, powered by rubber bands. They had a weight limit, I don’t remember it off-hand, but I believe it was around 5-10g, and then they limit you to another 30g of rubber to power the plane. There were competitors that could have those planes flying for more than 10 minutes under those circumstances. I don’t know much about the ornithopters, because that was after my time in Science Olympiad.The third image on the first link is of a rubber stripper, which cuts thin strips off of a rubber band, to make it lighter, so you can have a longer band for competition. We used one on my Science Olympiad team.Nevertheless, it’s impressive that they’re able to build such small electric planes that light.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210883",
"author": "Henrik Pedersen",
"timestamp": "2010-11-11T16:14:02",
"content": "Those “hacked servos” is as stated earlier, not even servos, and it’s not even new… I have seen them a lot in cheap “electric birds” … (you know, the toy paper birds which are radiocontrolled)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210902",
"author": "scootn405",
"timestamp": "2010-11-11T17:20:28",
"content": "Razorconcepts “Buy a micro for $100”. wtf are you doing here if this is your solution. I could make my own with used kids toys for probably less the $10. I’m thinking the micro RC cars that charge on the remote could easily be adapted, i’m sure there are a ton of these floating around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210905",
"author": "kaydee",
"timestamp": "2010-11-11T17:28:46",
"content": "Those “hacked” servos are called solenoids. You might remember them from physics when you calculated the field strength inside a infinitely long solenoid. However, it is still an ingenious and cheap engineering solution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210906",
"author": "psuedonymous",
"timestamp": "2010-11-11T17:31:03",
"content": "Love the ducted-fan-mouth shark. The witch on a broomstick using an enlarged hat brim as an airfoil was new to me, pretty inventive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210909",
"author": "MRE",
"timestamp": "2010-11-11T17:41:31",
"content": "I had a chance to meet and talk with these guys at last year’s Tokyo MAKE. Your post really doesn’t do it justice.I’ll have to dig up my photos and put them online.A few points I found impressive:All were powered by custom micro lipo cells. Their receiver boards were again custom, and were about the size of 1/4 a postage stamp. Thats right.the entire pcb was smaller than a typical tqfp. The board handled prop motor control (on off. No throttle that I know of) and three channels of control surface. Some planes made use of the third channel to twist the wings, but most just had tail control.One ornothopter had a wing flapping gear system that may have been hand machined.Most impressive fliers were the witch on a broom and the wooden warship.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210913",
"author": "KayDat",
"timestamp": "2010-11-11T17:59:36",
"content": "Just reading the title, one might be mislead into thinking HAD was reviewing Japanese Kitchen Zesters (i.e. Microplanes)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210916",
"author": "Fallen",
"timestamp": "2010-11-11T18:08:48",
"content": "Holy shit they carved their own props on that one plane.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210917",
"author": "MRE",
"timestamp": "2010-11-11T18:13:31",
"content": "Try thishttp://picasaweb.google.com/112239751304644835134/TokyoMAKESorry, just got the phone and hadnt figured out macro mode at the time.And yes, that is a girl dressed as the Harabusa asteroid probe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210929",
"author": "Filespace",
"timestamp": "2010-11-11T19:04:40",
"content": "holy crap the last photo in that google album… why on earth would anyone need a proto board that damn big?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211021",
"author": "Brandano",
"timestamp": "2010-11-11T21:26:05",
"content": "I guess you are not aquainted with the achievements of the micro rc scene:http://www.rcgroups.com/forums/showthread.php?t=961876in order to manage weights under the half gram they cut down li-poly cells in a controlled atmosphere, with non conductive tools.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211111",
"author": "Cyberteque",
"timestamp": "2010-11-11T23:59:19",
"content": "youtub/user/tyoukogatalabo are the Zen Masters of light slow flight!They always look like they are having a ball!If you have a YouTube account, subscribe!They post video of their fly-ins and they are always so cool to watch!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211148",
"author": "MRE",
"timestamp": "2010-11-12T00:45:59",
"content": "@filespace I wondered the sme thing.But imagine it on your wall, with a retro computer build on it.Or a hackerspace colab project… like a word chain game… everyone takes a space and builds a random circuit. Then try to interconnect them all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211227",
"author": "jeditalian",
"timestamp": "2010-11-12T04:19:03",
"content": "i’ve always wanted to do something like this with cellphone motors, but idk where to get those magic weightless invisible batteries they’re using. beaming electricity to it would be cool tho. what are they using, zero-point-energy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211250",
"author": "bactisme",
"timestamp": "2010-11-12T05:56:05",
"content": "Hello,I am living in Tokyo and I am actually looking for RC model (indoor) club in Tokyo.Do somebody have adresses or internet website?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211280",
"author": "soopergooman",
"timestamp": "2010-11-12T07:56:04",
"content": "looks like havoc heli electronics on it, for the control. as for aileron mechanisms, my guess would be wire tubes with magnet wire and tiny neo mags in there… apply small alternating currents gets your direction worked out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211281",
"author": "soopergooman",
"timestamp": "2010-11-12T07:56:56",
"content": "made mini hovercrafts the same way, Years ago….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211322",
"author": "WestfW",
"timestamp": "2010-11-12T09:03:09",
"content": "As Brandano implied, this isn’t so much something new and exciting, as a rather well-established sub-genre of model airplanes that you just hadn’t noticed. The early impressive models had transistor-based radio receivers and motors powered by compressed CO2. ICs and LiPoly batteries have resulted in a near-revolution; “consumer” grade planes are available off the shelf, and world records are under 1g total weight.http://www.rcgroups.com/indoor-and-micro-models-85/(although, perhaps this sort of thing involves too much skill to be considered a “hack.” I always considered “hacks” to be things that were clever but relatively easily reproducible.)hack-wise, I particularly like the idea of shaving off the “unimportant” part of “heavy” electronics components like the typical IR RC receiver:http://www.oyajin.jp/~toko/pic/0071/index.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211351",
"author": "strider_mt2k",
"timestamp": "2010-11-12T11:12:21",
"content": "@ scootn405: It was a spammer dude. Stand down.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211450",
"author": "pRtkL xLr8r",
"timestamp": "2010-11-12T16:30:48",
"content": "Instead of servos or solenoids, isn’t there some special kind of wire where you can put a current though it and it changes shape? Or does it react too slowly?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211564",
"author": "Brandano",
"timestamp": "2010-11-12T21:50:19",
"content": "There are servos based on memory shape alloys, but they are slow, imprecise and use up too much current. Another possible candidate for miniaturized actuators would be piezoelectric plastics of the same type used in some mems devices",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211577",
"author": "jeditalian",
"timestamp": "2010-11-12T22:19:08",
"content": "pRtkL xLr8r is talking about Nitinol:http://en.wikipedia.org/wiki/Nickel_titanium",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211580",
"author": "jeditalian",
"timestamp": "2010-11-12T22:23:13",
"content": "well maybe not but that and bimetallic strips were the first things to come to mind",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "234448",
"author": "kasun",
"timestamp": "2010-12-02T19:10:20",
"content": "what motor does use for this aircraft????",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "281902",
"author": "Rob Wentworth",
"timestamp": "2010-12-10T14:18:53",
"content": "I like this one:http://www.rcgroups.com/forums/showthread.php?t=961876Only 225 mg, including battery, motor, gearbox, receiver, actuator, airframe, propeller, etc. (with plans to make it even lighter). ;-)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.009355
|
||
https://hackaday.com/2010/11/10/fixing-the-future/
|
Fixing The Future
|
Joseph Thibodeau
|
[
"Lifehacks",
"Rants",
"Repair Hacks"
] |
[
"manifesto",
"repair",
"sustainable",
"waste"
] |
[
iFixit
] (who we’ve posted about
many times before
) has launched
a passionate manifesto
promoting the skills and knowledge of repair as a solution to technological consumerism and waste. They use powerful footage of electronic waste dumps in Ghana to make the point that we must collectively change the way we use and relate to our high technology–take a look after the break.
The manifesto rallies against the practice of withholding repair knowledge such as manuals, error codes and schematics–putting responsibility in the hands of manufacturers–but also makes it clear that it is up to every one of us to inform ourselves and to value functionality over novelty.
Considering the many-faceted resource crisis that we are headed towards, any efforts to push our behavior towards a sustainable and considerate way of life should be considered. As hackers we repair, reuse and rethink technology as part of our craft–but we are also privileged by our enthusiasm for technical challenges. The real battle is to disseminate the kind of knowledge and skills we possess into the general population. This is where the heart of [
ifixit
]’s message comes into play: the creation of an open, editable online repair manual for every electronic device. If you have something to teach, why not pop over and help expand their database?
[youtube=http://www.youtube.com/watch?v=dMwLUnd_ydI]
| 59
| 50
|
[
{
"comment_id": "210651",
"author": "xeracy",
"timestamp": "2010-11-11T02:05:50",
"content": "Printing the poster full size for my wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210652",
"author": "truthspew",
"timestamp": "2010-11-11T02:08:16",
"content": "Nice thought. However big business will never stand for this. It’s BuyNLarge (BNL) all the time.I tend to hold onto my computers for longer than average. My current laptop is approaching six years old. I’ve done all the maintenance on it, replacing the keyboard, palm rest, lcd, and hard drive over time.And here is the thing, it was cheaper than buying Dell’s service contract.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210653",
"author": "xeracy",
"timestamp": "2010-11-11T02:09:49",
"content": "fuck it, ordered for $2.89 shipped. Yes, I know its free if you FB or Tweet it, but I have neither, so I paid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210656",
"author": "macegr",
"timestamp": "2010-11-11T02:20:21",
"content": "This is a good idea, but specifically for electronics is not a complete solution. Sure, the computer industry has a huge repair industry grown up around it, because PC manufacturers have made an effort to build modular, replaceable parts. But what happens to the parts that you’re replacing? That’s part of the reason we have huge electronics waste piles in poor countries. Additionally, you can’t expect people to use something forever just because it works. I have a 486 somewhere, do I still use it? No…I actually can’t, it no longer fits my needs. It’s also power inefficient compared to the newer breed of laptops, smart phones, etc.Repairing things was a great tradition back when all electronics were made from large, simple components. We’ve been there, is what I’m saying. Part of the reason we’ve grown into a throwaway society is because our electronics have advanced beyond what is easily repairable without special knowledge or tool. Sure, occasionally there’s a simple fix like replacing a large, obviously blown capacitor…but much of the time a repair would require more knowledge and tools than 99.99% of the population has available.iFixit is doing a good thing, but they can’t make an appreciable dent in the electronic waste we produce. We still need to face and solve that problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210658",
"author": "alan turing's dog",
"timestamp": "2010-11-11T02:30:29",
"content": "I agree – a noble sentiment, but the problem is so big that resistance is useless. Until we reach the post-apocalypse when the value of your time drops to 30 cents an hour (and it takes 4,000 dollars to buy an ounce of gold), this is mostly whistling in the dark.And as we all know, contributing knowledge for free is always a noble and worthy goal, unless you’re bugged by the fact that someone else is getting paid indirectly for your efforts. But that’s the future for us all.I for one ain’t gonna waste time reflowing a bga package with a blow torch to save a laptop. News flash: The telephone system is being dismantled.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210697",
"author": "Hirudinea",
"timestamp": "2010-11-11T03:47:28",
"content": "Bout damn time!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210700",
"author": "Devin",
"timestamp": "2010-11-11T04:02:40",
"content": "If anyone truly wanted to reduce waste, they wouldn’t buy this shit in the first place.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210705",
"author": "M4CGYV3R",
"timestamp": "2010-11-11T04:20:23",
"content": "The problem with letting everyone and anyone contribute, is that you get answers for the dumbest of the everyday Joe.Their solution for fixing the laptop I’ve been trying to work out some motherboard issues on:You may be out of battery power. Check if power cord is plugged into the laptop. Also, Make sure the power plug is plugged into the wall. Check that both cord ends are plugged into the power adapter securely. Also, take out the battery and make sure that the connections are clean.Yes, awesome, let me just put the case and screen and keyboard back together to try this right away…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210713",
"author": "Urza",
"timestamp": "2010-11-11T04:31:55",
"content": "Devices are too small to repair simply to make it more difficult to repair. For example, every problem I’ve ever seen with a recent iPod (since the 1st gen nanos) has been a problem with the connection to the headphone plug. On the old iPods, that would be about a $15 part, that was probably less than 5% the size of the entire iPod. Far better to repair when that happens than to throw it out and buy a new one, as most people do. With the nano, it got harder – not entirely because of the size though. There’s plenty of room in there to make the flimsy, cheap, piece of junk “connector” they use to attach it to the board able to be disconnected, as it was in the old ones. They just don’t. But it’s still possible to repair it. I’ve done it. But the new ones, like the touch – not possible. At least not easily or well. I mean I repaired mine when it hit the same issue, but it’s a matter of double-sided tape, wire, tape, etc. It no longer closes, and if you push on it the volume goes all screwy. And yet, the touch is _bigger_ than the nano. There’s plenty of room to make that detachable. There’s actually a decent bit of flat-out _empty space_ inside the touch. Also, other companies manage it just fine. I recently pulled my Archos apart to repair a cracked digitizer. Easy to do. Pull a couple screws, it comes apart (the iPod touch literally took me _months_ to get open, and I couldn’t do it without severely damaging the case). Should the headphone connector ever die, or the USB connection, or any of the buttons…they all look easy enough to repair. So why can Archos do it but Apple can’t?Also worth noting that the Archos is the first new MP3 player I’ve ever gotten. Every iPod I’ve had (5 of them) were “broken” when I got them. One needed a new screen – saved me about $200 and saved more than half the iPod from the trash. And the repair was something I was able to do in about 20 minutes, using no tools but a _guitar pick_ (gotta love the 1st gen nano.) One I just pulled open and reseated some connectors, and all was good. One was functional again after a _firmware reset_!These are the issues that are making people throw things away. I’ve _never_ seen a problem where something actually soldered directly onto the circuit board went bad. It’s always some axillary component that is – or at least _could be_ – easily replaceable. And sometimes it’s not even a hardware flaw at all. People throw things away because they don’t even consider the possibility that it could be repaired.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210714",
"author": "trekeyus",
"timestamp": "2010-11-11T04:34:04",
"content": "if it’s an hp laptop look for hp’s very in-depth service manuals. they document just about everything.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210718",
"author": "whozit",
"timestamp": "2010-11-11T05:07:07",
"content": "Reverse broken window fallacy. Wage and price controls have decided that American labor is worth $9/hr.If it’s cheaper to deposit commodities in the safety deposit box called landfills: then it’s the right place for them.You have to think in rational terms of return on investment. You have 24 hours in a day. You invest in sleep as a preventative measure against lost productivity.Are you going to spend an hour of your time trying to keep some copper, epoxy, and antiquated silicon out of a landfill out of sentiment?You only should if you have something to learn from it, if you cannot get enough employment to keep yourself productively occupied, or if you have some idealogical motivation to reduce consumption of resources/use of landfills.Just recognize that your emotional decision to do so is a reaction to my decision not to. If I follow in your footsteps, some other reactionary will simply increase consumption due to the suppressed price in commodities resulting from the lack of demand.Perceived scarcity is a reaction to high prices, and percieved lack of scarcity is a reaction to low prices.Humanity has outgrown this rock. We can either deny that it’s happening and try to stop growing through a strained look on our face, or we can rationally approach the problem as engineers and look to expand out habbitat.Shed the planet like an undersized exoskeleton. It’s a necessary step in human domination of the Universe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210721",
"author": "Brennan",
"timestamp": "2010-11-11T05:14:18",
"content": "My problem with this website is that the people who NEED to read it, won’t. Ultimately it’s going to be people like us who go there to contribute or read about fixes, but the general population with no knowledge of electronics is going to open up their device, let alone even visit this website. Even I hate opening up consumer electronics because of the dreaded “YOU WILL VOID YOUR WARRANTY” seal that is inevitably broken. Manufacturers plain and simple do not want you to fix your device, they want you do buy a new one, and although the goal of this site is admirable, it will have no real-world impact for the audience it is trying to reach.So for that reason, I think the site needs a way to show you “hey, here is a cool fix for a broken device that will make it work again”. I want that stuff to jump out at me and make me want to buy a broken device on eBay just so I can repair it and save some money. Going and searching for your device is good in an archive type way, but it does little to get me motivated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210727",
"author": "h_2_o",
"timestamp": "2010-11-11T05:27:46",
"content": "great idea however will never work, with people like steve jobs saying we need to replace our electronics at least once a year, companies like apple are a perpetual e-trash machine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210741",
"author": "Drone",
"timestamp": "2010-11-11T06:59:51",
"content": "Device drivers and Windows bloat are the real enemy when it comes to electronic waste. I “upgraded” to Windows Vista once before and discovered half my peripherals would have to be thrown in the dumpster as a result because drivers where not available and half my machines would not cope with the bloated “new” OS.I bet the majority of the “discarded” electronics being dumped on the third world is the direct result of Windows bloat, inefficiency, and device driver obsolescence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210748",
"author": "P",
"timestamp": "2010-11-11T07:16:43",
"content": "this manifesto is nice but ultimately useless repairing stuff is not “revolutionary”!they have identified one problem but completely missed the cause — the real enemy here is capitalism itselfwant to stop waste, conspicuous consumption, and a culture where disposable junk made by chinese slave labor is the norm?THEN SMASH CAPITALISMalso lol @whozit for the expected libertarian free market/nerd space masturbation fantasy (or troll?)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210752",
"author": "satoxyn",
"timestamp": "2010-11-11T07:56:58",
"content": "I think that the problem with the PC’s is with compatibility. Although most of them are IMB PC compatible, you need to buy a new motherboard for almost every next processor. (i’m not sure actually, i haven’t made an upgrade for 7 years, maybe upgrade guys will tell more).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210775",
"author": "PeachPit",
"timestamp": "2010-11-11T08:09:52",
"content": "@Drone, just out of curiosity, what peripherals were you trying to use with vista that you couldn’t?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210806",
"author": "Necromant",
"timestamp": "2010-11-11T09:21:51",
"content": "As someone who has done a plenty of pc component-level repairs in past, I completely agree, with what he’s talking about.Component level repairs still are quite popular in russia, thanks to the attitude planted into people in the soviet era, but this looks like degrading. Many people are not aware, that ‘unofficial’ service is avaliable, and prefer to throw away in exchange for something better/faster. And until you plant the idea that everything can be fixed into ordinary, non-tech people brains, this isn’t gonna work out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210808",
"author": "hello.jpg",
"timestamp": "2010-11-11T09:43:46",
"content": "I know this opinion is unpopular, but Africa can go suck a fat one for all I care. If their politicians/dictators/etc want to sell their space out as low budget dumping grounds, that is their own problem, and nobody is forcing them. The US and most other countries have their own problems and people like this should think about helping their fellow countrymen and trying to help the poor, homeless, and starving WHERE THEY ARE before they even consider sending it elsewhere. Go to Detroit or East St. Louis and volunteer to help the poor there. Although at this point Africa probably can’t be cut off from aid as it seems like their entire enconomy is based on celebrity benefit concerts and foreign donations (except for nigeria, almost everyone there is a millionaire king with a large inheritance that they need your help getting to).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210810",
"author": "strider_mt2k",
"timestamp": "2010-11-11T10:09:52",
"content": "I’d also like a detailed accounting of these peripherals left 4 dead by Vista.More often than not it was one attempt and they gave up.As far as e-waste is concerned you’ll have to convince the folks who lined their pockets creating it in the first place.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210819",
"author": "Liquido",
"timestamp": "2010-11-11T10:39:02",
"content": "Tell you what I wanna see – a website that rates consumer products according to their level of “fixability”.That is; next time i buy a dishwasher/microwave/LCD, I’d want to know ahead how easily i can get replacements parts and where.In fact, i’d be the first one to buy an open source washing machine or a fridge. If you’ve ever tried to fix one of the new models, you’ll discover that the chinese factories put screws in arbitrary places around the frame and you just can’t open anything without breaking it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210823",
"author": "Rob",
"timestamp": "2010-11-11T10:59:00",
"content": "With the rise in price of gold the scrap industry is alive and strong. But its rather unfortunate that machines that require a simple repair are being torn open for a few dollars worth of gold and the rest is trashed. I try and buy/repair electronics off of craigslist but its a limited market. Most people aren’t savvy enough for craigslist, or don’t realize people want to buy it, or think its unsafe, or just don’t want to waste their time. And it ends up in the trash. Really unfortunate. I wish there was a more publically accepted and known arena for disposal. A lot of electronics big box stores offer e-recycling but that just ends up in a landfill – either in the US or overseas, it doesn’t get repaired.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210824",
"author": "P",
"timestamp": "2010-11-11T11:08:38",
"content": "“As far as e-waste is concerned you’ll have to convince the folks who lined their pockets creating it in the first place.”The folks creating it don’t line their pockets because they are de-facto slaves.The corporations selling these products — they are the ones who line their pockets.How? Because of you, the consumer.Wanna know how all that e-waste was created? Look in the mirror.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210826",
"author": "j_at_chaperon",
"timestamp": "2010-11-11T11:35:05",
"content": "I agree with posts that say that most advanced electronics is mostly unfixable.But the real savings would be done by removing software locks. Software locking (be it DRM, software keys, whatever) pushes to buy new equipment you don’t need only for software features. Why buy an Android phone when you have an iPhone and you are tired of iOS ?Many technically feasible things are software-locked by manufacturers and people just buy the new one. Of course, most readers of this site know how to circumvent protections, but it would be so much easier if everything was not locked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210837",
"author": "James",
"timestamp": "2010-11-11T13:22:16",
"content": "Just about anything is unfixable these days unless it’s a PSU or button/switch fault. Most contain micros that are programmed with custom, protected code and so can’t be replaced. Most stuff is surface mount and so re-soldering parts is beyond all but the most skilled solderer and quite frankly by the time I was capable of repairing such things I was paid enough to make it not worth my time, so I only do it for fun. They just don’t cost enough to make to make it worth the time invested repairing them.As for the “warranty void” sticker – if it’s still within its warranty just take it back, if not – dig in?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210838",
"author": "space",
"timestamp": "2010-11-11T13:26:39",
"content": "The real problem of the hardware is special engineering technique that shortens the life of electronic components in predictable manner. Example: capacitors on motherboards suffer form heat generated by CPU and GPU, solder joints on GPUs suffer from thermal cycles caused by poor cooling and RoHS soldering craplloys, etc.An skillful engeneer will adjust cooling of GPU in laptop to cause solder joint or GPU core failing just a month or two after the warranty expires, forcing you to buy new one.Yes, hi-tech life is an racket. We bow to “VOIDS WARRANTY IF REMOVED” god and pay for new same crap like money cattle that we are.The electronic today is MADE to fail to enforce trash making system we call economy / free market mass production. Most of motherboards and graphic cards are repairable. Power supply can have extended life if cooled properly. Hard drives don’t like swap files and swap partitions.Before you send your old PC to landfill check if it can be repaired. Maybe it needs CPU cooler cleaning, replacing some Low ESR capacitors and new power supply. For small amount of money you could have usable firewall/router, game, torrent or DC++ server for next year or two. It will keep your new main PC load free. It’s like having an extra CPU core working for you.Vote with your money: don’t buy unrepairable and unreliable crap. The language of money they understand, not the English.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210850",
"author": "sexiewasd",
"timestamp": "2010-11-11T13:58:09",
"content": "@whozit Thanks for this part, “Humanity has outgrown this rock. We can either deny that it’s happening and try to stop growing through a strained look on our face, or we can rationally approach the problem as engineers and look to expand out habbitat.”It’s not going to happen though. We will run out of sufficient resources to populate a new planet long before we have the technology to reach that goal. Oil was our one best shot at doing so. A liquid and gas store of millions of years of energy from the sun, but we’ve used it to expedite the growth of our population for the sake of capitalism.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "476363",
"author": "Luiz Felipe",
"timestamp": "2011-10-09T22:55:30",
"content": "We have tons of Uranium and Torium alread, only wainting for use. It can provide much more energy that oil, we only need to not be afraid of it. Its not so dangerous, if we made smart use.",
"parent_id": "210850",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210851",
"author": "James",
"timestamp": "2010-11-11T14:08:00",
"content": "@whozit – Looking at the problem as engineers would be to look at our resources and live within them, not look to expand our world. The waster looks to expand to new places so they can continue wasting energy. And, in relation to that…@space – “For small amount of money you could have usable firewall/router, game, torrent or DC++ server for next year or two. It will keep your new main PC load free. It’s like having an extra CPU core working for you.”Using a PC for any of the above is just about the biggest waste of energy I can think of. You’re talking ~100W 24/7 – from an energy point of view that’s horrifically wasteful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210852",
"author": "Dave Eaton",
"timestamp": "2010-11-11T14:09:54",
"content": "I agree with part of the premise, that we should be able to get information on what we own. I can’t see being allowed to open up stuff and still have a warranty- assuming the risk yourself should absolve the manufacturer, because you may do far more harm than good. They never agreed that you aren’t a 10-thumbed familial idiot who should have all tools hidden from them. They said that they stood behind what they produced.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210853",
"author": "Dave Eaton",
"timestamp": "2010-11-11T14:12:42",
"content": "Also, the anti-capitalism is pretty rich, as we all sit in front of out electronic marvels produced, generally, by some of the most rapaciously capitalist societies in the world…The self-righteous hack-a-day enviro-marxists are pretty funny. One of the real ironies of the ‘smash capitalism to save the planet’ trope is that before the clear superiority of capitalism in maximizing productivity was established, communists openly mocked environmentalism. Smoke belching from huge industrial plants was evidence of communist superiority, until it wasn’t, and then it magically transformed into a symbol of all that’s wrong with capitalism. Sour grapes. You look in the mirror, P.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210854",
"author": "James",
"timestamp": "2010-11-11T14:18:58",
"content": "And while it really is a noble idea, and I’m fairly behind the idea, I’m capable of it.I can imagine a world where people take instructions from the internet, strip apart their TV and kill themselves on the HV circuit.I can imagine a world where botched repairs set fire to devices and kill a family, because someone saved a few quid on replacing their £10 freeview box.While I’m one of the original generation of people who took things apart and tried to fix them before even thinking of buying a replacement, I know my limits and I know when I can cause dangers/problems. Those who are not trained do not know, may miss the dangers and may not understand the problems they cause.Be careful what you wish for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210856",
"author": "Mark",
"timestamp": "2010-11-11T14:47:59",
"content": "Got my poster at the Maker Faire Detroit! It is awesome and hangs in my cube. Freedom to the Fixers!I tried to repair our vacuum cleaner. There was a plug that connected the upper canister with the lower brush that had burned up. I could only find half the plug online. I called the manufacturer to see if I could get the other half. The call center lady was very apologetic and said that I couldn’t get a new plug. If I would please cut off the cord and send it to them they would send me a new replacement vacuum cleaner. I was a bit shocked.The kids and I ripped apart the old one and played with the cool motors and switches. The switches have already made their way into other projects and the motors are being reserved for the CNC Machine of World Domination ;-). Only downside was that I had to send them the cord. Vacuum cleaners tend to have looong medium duty cords that make great extension cords.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210858",
"author": "stockdam",
"timestamp": "2010-11-11T14:52:21",
"content": "There’s no financial incentive (yet) to repair anything. It’s “cheaper” to throw away and buy new.To change things then we’d need to change the way things are designed and manufactured.Eventually things will have to change but not in our lifetime.Fixing your own stuff is interesting but try and charge a fair rate for doing so – “it’s almost as cheap to buy another one mate”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210874",
"author": "Mic",
"timestamp": "2010-11-11T15:26:17",
"content": "Holy @$%# burning electronics. That’s nasty. Bromated flame retardants will kills joo all. Anyone ever watched “The story of stuff”? It’s a twenty minute animated film about how stupid and nearsighted consumerism is. Designed obsolescence the stuff you buy is supposed to fail! Where the saying, “They don’t make em like they used to comes from.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210877",
"author": "Peter",
"timestamp": "2010-11-11T15:33:10",
"content": "When you add in the cost of shipping your unit back, the time you’re without it, the “nominal repair fee” and the chance that the replacement may also be defective, the cost of your time to repair it “right the first time” may be a better deal!And, there’s always the chance that you can improve on the design.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210884",
"author": "P",
"timestamp": "2010-11-11T16:22:15",
"content": "@Dave Eaton“the clear superiority of capitalism in maximizing productivity”the best trolls are usually subtle, davegood try though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210891",
"author": "Dave Eaton",
"timestamp": "2010-11-11T16:38:52",
"content": "Provide a counterexample, P. I didn’t claim that maximizing productivity is always a good thing, though from a thermodynamic point of view, it must be at least a consideration. If pointing out history of claims that Marxism is ‘scientific’ and collective, centrally-planned economies would crush the silly old inefficient capitalists (which, I think is pretty clear, are claims that have been completely abandoned) is trolling, then the definition has widened.I’ve been called far worse than ‘troll’ by people with enough confidence to use their name rather than a single letter, so your ad hominem is noted, but not regarded, Sweet P.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210892",
"author": "Urza",
"timestamp": "2010-11-11T16:42:23",
"content": "@whozit, and others: I’ve personally saved over $200 with under 30 minutes of work repairing a device. I could have also sold it and made _at least_ $100 profit. Not bad for a half hour’s work…It would seem that those arguing that there’s no economic incentive for repair don’t repair a whole hell of a lot. I also am in the process of repairing my Archos MP3 player. I cracked the digitizer. It would have been over $150 to get Archos to repair it. It was $10 to get a new one off e-bay and do it myself.@James: “Just about anything is unfixable these days unless it’s a PSU or button/switch fault.”Yes, and 95% of the time, that IS what’s wrong. As I said in a previous post, I have NEVER, not ONE SINGLE TIME, seen a component actually soldered to a board go bad. At least not unless it had been abused (i.e. providing _way_ too much voltage). It’s _always_ some small auxiliary component that goes bad that makes people throw this stuff out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210925",
"author": "Willyshop",
"timestamp": "2010-11-11T18:40:08",
"content": "Fixing and conserving is great, but sometimes junk is junk and needs to be disposed of. If countries like Ghana already have an industry built around breaking down electronic waste, we should be thinking about investing in the proper equipment and infrastructure so that they can do it safely and efficiently. That junkyard wouldn’t be such a sad story if it was a clean industrial facility providing jobs and opportunities to the community.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210961",
"author": "TimK",
"timestamp": "2010-11-11T19:52:29",
"content": "I’m a sys-admin for a small college and educating my users here on basic things has saved me so much time and effort. I’m doing a class next week in fact. The users now do triage. I’m the surgeon that takes care of the rest.It’s the same with this. iFixit is attempting to provide the resources. We have the responsibility to educate other people that automatically assume they can’t understand electronics. Most people, when they realize they can understand the basics, are more than happy to put a little effort into maintenance and repair.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210970",
"author": "Jim Smith",
"timestamp": "2010-11-11T20:16:49",
"content": "Electronic components fail primarily because of poor practices in the assembly plants. Reliability always goes down as the amount of handling increases and the low cost of labor in many Asian countries results in vastly more handling than is found in North American factories. I checked out a Chinese circuit board manufacturing plant (bare boards, no components) and stopped counting after 102 handling steps; in a North American or European plant, there might be 5 handling steps in total.The worst handling concerns use of soldering irons. Machine soldering takes place at temperatures at least two hundred Fahrenheit degrees below the operating temperatures of soldering irons. When soldering irons touch components such as integrated circuits, damage known as “purple plague” occurs inside the components. Because the damage is invisible, few people pay much attention to the problem.There’s a good explanation of the soldering heat damage phenomenon athttp://www.emsciences.com/HTML/Heat.htmlThe problem with repairs is, of course, they all involve soldering irons. I never buy refurbished electronics because the act of replacing components means the unit is inherently unreliable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210991",
"author": "zeropointmodule",
"timestamp": "2010-11-11T20:46:56",
"content": "@Jim Smith, not all problems are caused by overheating although you are right to mention the delamination and warping issue with machine soldering.Its interesting to note that some problems are caused by mixing different types of lead free, case in point using Ag based solder with non Ag is known to cause brittle unreliable joints.Best to remove *all* the old solder with braid first just to make sure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211003",
"author": "Jim Smith",
"timestamp": "2010-11-11T20:56:30",
"content": "The problem of “mixing” different lead–free solders is that they may not mix. If the original solder melts, the added solder will mix with it and there will just be a uniform alloy with lower silver (Ag) content. The silver is used in lead–free solders to reduce the melting temperature.I suspect that you mean using standard tin/lead alloy with lead–free solder makes for unreliable connections and that is true.My post was to explain why components fail. Breaks in solder joints are a different story.And be sure that the part is solderable. If the solder is reluctant to flow, your likely cause is an unsolderable part.Although we work with electronics manufacturers, we try to post soldering information that will be helpful to consumers, especially onhttp://blog.emsciences.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211139",
"author": "space",
"timestamp": "2010-11-12T00:23:52",
"content": "@James – “Using a PC for any of the above is just about the biggest waste of energy I can think of. You’re talking ~100W 24/7 – from an energy point of view that’s horrifically wasteful.”I’m typing this message on 100W PC right now, and it is on 24/7 for last four years.When I buy a new PC, I’ll probably have graphic card that uses more than 100W IDLE, CPU will probably use more than 50W idle. I’ll essentially use 2 to 3 times more energy just running new PC idle. I’m sorry, but I need one PC 24/7.If you have an information what could work 24/7 reliably, and be as functional as my 2GHz single core AthlonXP please let me know.btw I have 233MHz PC under the roof, working as wireless network node. 25 Watts for last five years, maintenance free. That is ~1100kWh so far, 30 euros cost in electricity total for last five yeras! Horrible. I feel so ashamed.Dude, there is something wrong with your reasoning.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211177",
"author": "wernicke",
"timestamp": "2010-11-12T02:40:02",
"content": "@spacea little off topic, but to answer your question, I swapped out a 2G P4 motherboard with an Atom 1.6G 330 (jatom-GM1-330-LF)that runs 24/7 and couldn’t be happier. It’s my mail server, mythtv backend, file server, caller id server, and web server. Apache’s a little slow but not bad. I can even watch hdtv with the onboard graphics, but I rarely do because of the box’s location. It consumes a little more than 50W, and I suspect much of that goes to the pair of 1st gen pchdtv cards. I shut it down once a month to blow the dust out, and its never given me trouble.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211389",
"author": "Madcat",
"timestamp": "2010-11-12T12:57:59",
"content": "As someone who swears to DIY and now that manifesto, I agree with encouraging people to try DIY and self-repair activities. The problem is the clueless schmucks who try…either break something further or get injured/killed. The ones with common sense and good hand-eye coordination will do just fine.ifit.com is a noble endeavour indeed, but the way business has been its always “make it smaller with planned obsolescence”. This isnt applied to just electronics, its everywhere in. We seriously need to stop the throw-away culture, it will come back to bite us in the ass in a few decades. Dont even get me started with cellphones !@#$.Kill the throw-away culture and encourage more DIY.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211449",
"author": "ewan",
"timestamp": "2010-11-12T16:28:56",
"content": "this was wasted on the trolls…apart from the environment, apart from the status game of saying “my time costs monney”, fixing stuff usualy makes sense. it often takes the same ammount of time to fix something as it does to buy a new one.ifixit is a great idea, making it easier to fix your stuff, there’s not many articles that aren’t about fixing you mac yet, but great idea. hope it goes far.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211483",
"author": "Alchemyguy",
"timestamp": "2010-11-12T17:34:55",
"content": "@ewan: dude, it’s not just a “status game” that my time=money, and it’s not just money that makes it (my time) valuable to me. My time every day is finite and I have to squeeze the most value out of it that I can. In many (most) cases it’s far more economical for me to toss and replace than to spend the time diagnosing a problem, researching the fix, acquiring the parts and performing the task. If I got pleasure out of the activity, it would be further up the priority scale. As it stands, I get more pleasure (and value) out of other activities.It’s similar to the question of whether I stand in line for an hour to save $5 ($10, $20, $50?) on a product or just pay full price and get it without having to do something that otherwise is a waste. My break point would be $50 or more is worth an hour of my time doing a task I detest. YMMV.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211690",
"author": "Mic",
"timestamp": "2010-11-13T01:24:54",
"content": "I guess you have a busy life Alchemyguy. Ask your grand parents about the value of fixing things. It depends on what it is. I just fixed a 52 inch T.V. for someone, 200$ not 1500$. Fixing some things is worth it. Some things not. My parents wore seventh generation clothing (Requires fixing). Really I guess it depends on your income. Those poor people in the short video thought fixing computers was an opportunity. Many VERY old computers are used effectively to track inventory in many stores. Side note old stuff often needs to be fixed at some point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211691",
"author": "Mic",
"timestamp": "2010-11-13T01:32:27",
"content": "Hmm I guess seventh gen clothing is not accurate. More like six of you older siblings and your uncle wore your current clothes.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.152546
|
||
https://hackaday.com/2010/11/10/carbon-fiber-part-fabrication-guide/
|
Carbon Fiber Part Fabrication Guide
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"carbon fiber",
"mold",
"parts",
"vacuum"
] |
If you’re thinking of
working with carbon fiber
this guide should be a big help. The example is aimed at the automotive crowd but the principles transfer quite easily. Carbon fiber parts are constructed in a similar manner as fiberglass parts. A mold is covered in a release agent, the fibers are put in place and covered in epoxy. With fiberglass the fibers are often sprayed on but carbon fiber components use woven mats of the material to build up multiple layers. Vacuum bags are used to hold the layers together, removing air and impregnating the fibers with the epoxy. This guide even outlines the construction of a vacuum pump needed for that step.
The benefits of carbon fiber are many, including strength and weight reduction. This makes it a great material for adding parts to weight-sensitive hacks such as
quadcopters
. But the mesh also has an interesting look which is why it shows up in
custom electronics cases
. The one real drawback is that when this material fails it is a catastrophic failure, tending to crumble across the entire structure rather than limiting damage to a small area. That means that a rough landing might be the end of your new parts.
[Thanks MS3FGX]
| 38
| 27
|
[
{
"comment_id": "210552",
"author": "fluidic",
"timestamp": "2010-11-10T22:15:04",
"content": "Catastrophic failure is an issue?Would layering a secondary material help enough to offset the weight / bulk it would add? If it works for automobile windshields…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "210567",
"author": "Alston",
"timestamp": "2010-11-10T22:53:15",
"content": "You can use something like a thin cord between layers. It doesn’t add much weight and greatly increases rigidity in the part.",
"parent_id": "210552",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210587",
"author": "herbicide",
"timestamp": "2010-11-10T23:01:37",
"content": "@fluidic – that doesn’t stop it (the windshield) shattering into fragments, it just holds all the fragments together, in one large mat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210589",
"author": "Luke",
"timestamp": "2010-11-10T23:06:51",
"content": "Kevlar is an alternative to CF. Not as stiff and strong but tougher and better able to absorb impact. You can layer Kevlar with CF to get the benefits of both. There are also Kevlar/CF hybrid fabrics (fabric made with alternating yarns of Kevlar and CF) but those don’t work as well as a well-designed mix of layers of the individual fabrics.Just don’t assume that Kevlar reinforced resin or epoxy is bullet proof.Another, cheaper alternative to CF is basalt fiber. Stronger than fiberglass but not as good as CF or Kevlar. It has a dark grey to kinda greenish cast rather than the charcoal look of CF.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "996368",
"author": "byran",
"timestamp": "2013-04-23T00:28:50",
"content": "kevlar should not be stated as an alternative to carbon fiber. Rather it has a diferent purpose or use as a laminate.",
"parent_id": "210589",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210606",
"author": "lwatcdr",
"timestamp": "2010-11-10T23:26:55",
"content": "Catastrophic is the failure mode for most composites. It is just the way it is.Now if you make a material with the strength of carbon fiber the failure mode of steel, and the heat resistance of ceramic you would be a very rich person.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1015386",
"author": "Dave sloth",
"timestamp": "2013-06-12T19:12:35",
"content": "How about an engineered shelled vertebrate which builds a composite substrate which is a silicon-crystaline “lattice” with layers of randomly interspersed enhancer materials, CF loose-weave honeycombing the crystalline lattice, and all of it suspended in an organic insulation/solidification compound?Feed them, and let them build “reefs” of the stuff, then either mill the end product out of it, or you could get fancy and produce a pheromone gossamer shape of final product, and let them grow into said shape in a nutrient-saturated environment. If you integrate a simultaneous reaction to split CO2, the carbon can be used in the growth process as a raw material. The oxygen would be respirated, and re-attached to any unused C atoms, and forced out of the growing tissue. You know, anaerobic environment inside our creature’s extrusion process.We got some basic nano toys figured out, we only would have to start genetically modifying crustaceans on an aggressive research schedule, and we could likely iron out bio-constructed composite building materials in 3-5 years.",
"parent_id": "210606",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210618",
"author": "andrew",
"timestamp": "2010-11-11T00:20:39",
"content": "It’s fairly standard practice to combine CF with kevlar and other materials to improve failure-mode-like properties at the expense of weight and overall thickness. It’s not going to get as good as a metal, but you can prevent it from shattering into pieces. Take any modern-day racecar. Accidents generally result in loose, floppy body panels, not trillions of shards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210638",
"author": "alan turing's dog",
"timestamp": "2010-11-11T01:23:43",
"content": "@lwatcdrAny luck with transparent aluminum yet?But seriously, I await with baited breath the exciting news stories about the mostly-composite designs being passed around by Airbus and Boeing.15 years from now, quite a few air carriers will be complaining about how mean it was for the FAA to cut the max airframe lifetime estimates and number of pressurization cycles in half.Progress always has a hitch or two in store, it seems.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1320572",
"author": "stephen",
"timestamp": "2014-04-01T20:23:28",
"content": "We have it already, it’s known as sapphire and is rather expensive – watch faces andtank windows etc.",
"parent_id": "210638",
"depth": 2,
"replies": [
{
"comment_id": "3386875",
"author": "Patrick Wingert",
"timestamp": "2017-01-29T13:16:45",
"content": "Actually its called aluminum oxynitrate.https://en.wikipedia.org/wiki/Aluminium_oxynitride",
"parent_id": "1320572",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "210639",
"author": "Taylor Alexander",
"timestamp": "2010-11-11T01:32:39",
"content": "I made a bunch of carbon fiber things in my college dorm room (its where my xbox live handle – Carbonnnnnnnnn – came from).Its fun and pretty easy, but remember, those fumes are toxic! Do it in a well ventilated area and use a respirator. I spent the first couple weeks trying to cheap out and not use one, and I did it all in my little dorm room. Eventually i got the symptoms of overexposure, which are creepy – random dizzyness hours after exposure or even the next day. Eventually it can really harm your brain. I slowed down and spent the $30 on a respirator after that!And if you live near a TAP Plastics – go get materials from them and they can tell you all about the basics. It was helpful.-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210640",
"author": "elude107",
"timestamp": "2010-11-11T01:34:19",
"content": "Also remember that it’s conductive, and if you try to machine the finished carbon the fumes are extremely toxic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210648",
"author": "lwatcdr",
"timestamp": "2010-11-11T01:59:32",
"content": "@andrew A catastrophic failure doesn’t mean shatter. A floppy car tub is pretty catastrophic.With most metal structures you will get cranks or bending and finally a catastrophic failure.The failure tends to be gradual with most composite structures it tends to be all or nothing. Of course you can blend material, make it a lot stronger than it needs to be, and our use have a core that helps but really once a composite starts to fail it fails fast.You just have to work with it most of the time.For a race car tub you set it up so different layers of the tub fail at ever increasing stress levels. AKA crush zones.The other problem with composite construction is that none destructive testing has traditionally been very difficult. I kept up with what Boeing and Lockheed can do but it used to be a real problem.But the great thing about Carbon Fiber is that it is so light. Just make the part a lot stronger than it needs to be and you will be golden.For something like a quadcoptor I doubt that you could find carbon fiber thin enough to be less than several times stronger than needed.Just remember if you crash it hard enough you will have to make a new part and not just bend it back into shape.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210659",
"author": "CutThroughStuffGuy",
"timestamp": "2010-11-11T02:36:46",
"content": "The other downside is that epoxy resin almost invariability contains Bisphenol A (BPA). Fantastic material properties wise though. But potentially not so nice to get too cozy with so to speak.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210717",
"author": "Pete S",
"timestamp": "2010-11-11T04:57:44",
"content": "I don’t know anything about carbon fiber but I want go give a heads up for a thermoplastic called Kydex.http://en.wikipedia.org/wiki/KydexIt comes in sheets and you form it by applying heat using a heat gun or oven.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210797",
"author": "Erik Johansson",
"timestamp": "2010-11-11T08:39:28",
"content": "epoxy is bad, my grand father built a small boat one summer, the next summer he was epoxy sensitive resulting in a really bad rash that stuck for days after each contact with epoxy.On the plus side I do have access to really good protection gear + ventilation now. :-/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210800",
"author": "Erik Johansson",
"timestamp": "2010-11-11T08:55:11",
"content": "Don’t get me wrong, everyone should have carbon fiber, vacuum bags and resin at home.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210922",
"author": "Mark",
"timestamp": "2010-11-11T18:31:21",
"content": "With out an autoclave the parts are not going to be of a high quality.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6373657",
"author": "Christian Knopp",
"timestamp": "2021-08-19T19:33:31",
"content": "Some of the vacuum bag work might surprise you then. I understand autoclave consolidation, but good vacuum bag work can turn out phenomenal results!",
"parent_id": "210922",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210996",
"author": "g",
"timestamp": "2010-11-11T20:53:05",
"content": "i did this for my quadrocopter:http://www.dyyyh.de/quadro/gehause4_2.JPGits lots of work, but really looks nice and the weight is much lower than the frame i had before.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3124187",
"author": "Ashley De Souza",
"timestamp": "2016-08-09T09:50:04",
"content": "Nice frame! Whats the diameter of frame, Say motor to motor and what did it weigh?",
"parent_id": "210996",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "211028",
"author": "solex",
"timestamp": "2010-11-11T21:34:19",
"content": "I’ve been making carbon fiber stuff for solar cars (both structural composite chassis, as well as aerodynamic shells) for the past 9 years, and this is an excellent guide, especially for a one-man operation. Major points for making negative molds, a lot of people try to use a positive mold, and the part looks like crap. Some other things to add:– Grain direction counts in structural parts. If you rotate the weave by 45 degrees every time you add a new layer, you gain significant strength increases.– Tape joints are your friend, if they’re done right. If they are not done right, they are your worst enemy. Basically they consist of wetting a strip of carbon, and laying it along a joint such as a planar intersection for a chassis build.– if you cut, say, a couple notches out of the carbon panel, you lose a whole lot of strength inbetween those two notches. The strength of carbon comes from the tensile strength of the fibers, and if you introduce a break in the line of fibers, it’s worthless for a good portion surrounding that cut. There is still some strength, but reinforcement in that area (hence the tape joints) is always a good idea.And contrary to what Mark said, an autoclave is not necessary. In a lot of cases, certain mold materials can’t take high heat (the 16lb/ft^3 high density foam we use at solar cannot be used in “cooked” molds). It all depends on the resin you use. For a non-heated mold/carbon setup, use a long cure resin, i.e. 24 hour setup time or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211058",
"author": "MS3FGX",
"timestamp": "2010-11-11T22:42:13",
"content": "I was looking into the feasibility of one-man carbon fiber projects when I cam across this guide.After reading this I have determined that it is considerably more work than I expected (I suppose I thought it would be more like fiberglass, which is relatively easy to work with), but it is an excellent resource for anyone with the patience to take it on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211270",
"author": "avmech",
"timestamp": "2010-11-12T07:07:05",
"content": "As my name hints I am an aircraft mechanic.Couple of hints:Save mess and time with prepreg fabric.prepreg comes pre-impregnated with just the right amount of epoxy. No more fighting with large tubs of epoxy and dripping everywhere.Contact your local chapter of the EAA if there is one. The Experimental Aircraft Association (EAA) is a group dedicated to building experimental aircraft among other things. Many of the newer models of experimental aircraft are composite. You can learn lots from them and they may even know of used equipment for rent/sale (like vacuum bagging equipment).Warp clocking:fabric has a warp and a woof. Woof is the strands of fiber that goes across the narrow dimension of the fabric and woof goes the long way. Out another way, the warp wraps around the roll and the woof goes parallel with it.when making your lay up rotate the layers so that the warp is not all going in the same direction.Nomex honeycombNomex honeycomb dramatically increases the rigidity of the layup while keeping the weight down. The difference is flat out amazing. If you can accommodate the thickness and want the lighter weight, give Nomex honeycomb your full consideration. The poor mans substitute is corrugated cardboard, which once saturated with epoxy becomes very strong as well (not human rated though).Aluminum and carbon fiberAluminum and carbon fiber are not friends. If in direct contact and in the presence of an electrolyte corrosion will occur. This can be prevented by coating your aluminum with an epoxy primer and paint, adding an external layer of thing stren cloth (very thin and transparent fiberglass) and using stainless steel bushings and hardware for the connection.Composites generally do not like expansion type fasteners like rivets (including pop rivets and cherry max). Carbon fiber conducts enough electricity to give you a bad day. And the dust produced from most sanding/grinding on composites is hazardous. Some epoxy products are UV sensitive and will degrade in sunlight. Others have an additive that can mitigate/eliminate this. If painting the composite does not bother you (VERY good idea btw) then use a white that has titanium dioxide in it so as to (a) block the UV and (b) keep the composite lay up cooler in the sun and therefore stronger and longer lasting.Cosmetic defects in non critical parts can be filled with a mixture of a thixotropic agent and epoxy. This will allow the voids to be filled and then sanded to final contour. Glass balloons mixed with your epoxy is one way to do this.If you can find it, ceramic fiber can be interesting.Hope that helps,Avmech",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211494",
"author": "solarcar",
"timestamp": "2010-11-12T18:12:12",
"content": "Prepreg is great, if you can spare a freezer constantly running at -25C and a bag resealer…Biggest thing this guide missed is to LAY OUT YOUR VACUUM BAG IN ADVANCE! For a flat part you can get away with doing it on the spot, but once you get into complex curves you *need* to add in pleats and extra bag to get into deep spots.And don’t use carbon fibre near anything you want to electrically insulate (like battery packs). Making solar cars teaches you this very quickly!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212202",
"author": "Tom Brusehaver",
"timestamp": "2010-11-14T05:48:03",
"content": "Check outhttp://cozybuilders.org/my_cozy.html. No prepreg, vacuum bagging or anything. Carbon fiber has advantages, and disadvantages, but plain old E glass is easy to work with and can provide an easy alternative to almost any other building material.Simple hand tools are all that are necessary. Shop knife is the #1 tool, scissors and maybe a dremel will allow you build almost anything.http://wicksaircraft.comhas a whole section on composite material. (aircraft spruce does too if you live in California).Foam cores are simpler and cheaper than nomex.For engineering types the book by Andrew Marshall is the biblehttp://www.actechbooks.com/products/act072/It covers everything from various resins, and fibers. Peel strength and sheer. If you are desgining something composite, that is the book to have!Watch chemicals, use protection around resin (polyester and epoxy, both can be dangerous). Don’t mess with MEK or vinegar to clean skin, don’t get resin on you, and you will be building for years!I’ve build boats and airplanes, and love fiberglass building.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223176",
"author": "Greg",
"timestamp": "2010-11-30T18:06:11",
"content": "If any one is looking for alot of diy or more how to information about carbon fiber, I found this great website,http://www.carbonfiberdiy.com",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "588412",
"author": "freddy minasian",
"timestamp": "2012-02-24T21:52:20",
"content": "i am going to order carbon fiber to cover some interior trim panels. i would like to know what i require in the chemical side to order? thanks Freddy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "896900",
"author": "Harvin",
"timestamp": "2012-12-04T12:37:33",
"content": "what materials are used for skin and stiffeners of micro air vehicles..?any idea",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "896963",
"author": "Tom Brusehaver",
"timestamp": "2012-12-04T14:49:34",
"content": "For most composite aircraft construction, the core material is some kind of foam, or honeycomb materials. The foam can be of many types (not the nasty bead board that crumbles), urethane, polyurethane and many others. Look at places like Wicks.com for all the different types of foam.",
"parent_id": "896900",
"depth": 2,
"replies": [
{
"comment_id": "896967",
"author": "Harvin",
"timestamp": "2012-12-04T15:00:45",
"content": "Thanks Tom for your Input.But i want to know specifically about Micro Air Vehicles,list of materials that are used both in skin and stiffeners of wings.since these are under research most of details are unknown…..it would be helpful if u can get more details regarding this",
"parent_id": "896963",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "1961275",
"author": "Unknown Gangsta",
"timestamp": "2014-10-06T16:43:11",
"content": "I have a question regarding the composite parts which can be easily made using the molds. I do have a mold for a particular aerodynamic part, but I do not want to use pre-preg carbon fibre for testing. Are there any other materials which we can use to make the part using that mold?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1961856",
"author": "Tom Brusehaver",
"timestamp": "2014-10-06T19:25:36",
"content": "Sure, Carbon Fiber cloth is available from many sources, including Wicks Aircraft and Aircraft Spruce.http://aircraftproducts.wicksaircraft.com/item/all-categories/282-carbon-fiber-cloth/282-gft?&plpver=10&origin=keyword&filter=&by=prodGet the cloth and wet it out using epoxy. Carefully squeegee the epoxy into all the corners, and you should have a nice part.",
"parent_id": "1961275",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "2492446",
"author": "Aidan",
"timestamp": "2015-03-23T21:35:09",
"content": "Is there a different process for making a more structural carbon fiber piece than the process for making a standard shape that is not required to be load/stress bearing? What is the purpose of vacuum bagging the part and baking the part opposed to just hand rolling and curing the resin at room temperature?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2496088",
"author": "Tom Brusehaver",
"timestamp": "2015-03-25T18:09:12",
"content": "Non stress/load bearing is probably overkill to use carbon fiber. Structural parts need to be clean, and probably have some kind of core.Vacuum bagging will allow minimal epoxy content (weight) for the part. Hand squeegeeing can get you close for most flat parts.Baking the resin can help give a higher Tg, but it depends on the resin chosen, and the needed strength. Most resins that hobbyists would use (West, Aeropoxy, MGS, etc) will be fine at room temperature cure. Additional strength can be added by post curing.Checkhttp://www.actechbooks.com/products/act072/for all the details about building with composites.",
"parent_id": "2492446",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "3005302",
"author": "himan",
"timestamp": "2016-04-29T09:23:58",
"content": "hiwhere is the guide i am not able to find it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6681516",
"author": "Victoria Addington",
"timestamp": "2023-09-11T16:16:18",
"content": "I liked how this post shared that carbon fiber can increase car efficiency while decreasing crude oil consumption. My friend is looking for a Lamborghini Urus carbon bumper mirror fender cover set. I should advise him to visit a store offering exotic carbon fiber car parts.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.605157
|
||
https://hackaday.com/2010/11/10/diving-deep-into-the-game-boy-lcd-protocol/
|
Diving Deep Into The Game Boy LCD Protocol
|
Mike Szczys
|
[
"Nintendo Game Boy Hacks"
] |
[
"lcd",
"logic analyzer",
"nintendo",
"saleae"
] |
[Craig] wanted to make the original Game Boy LCD screen do his bidding so
he sniffed out the data protocol that it uses
. We were amused when he mentions that there’s an army of people out there looking to build pointless crap as part of a hobby. Guilty. And he goes on to outline why this LCD screen is a great resource for hobbiests.
As you can see in the pinout above, it uses 5V logic, with a 4 MHz data clock. These traits are both very friendly to a wide range if inexpensive microcontrollers. If you know how to address the display it should be very easy to use. Furthermore, the low pin count is thanks the to a 4-shade grayscale screen, limiting the data pins to just two. [Craig] hooked up his Saleae Logic probe to capture communications and walks us through what he discovered. During this process he proved to himself that he had figured out the protocol by exporting captured data from the logic probe and reassembling it into an image on his computer.
| 22
| 19
|
[
{
"comment_id": "210527",
"author": "coreyl",
"timestamp": "2010-11-10T21:13:37",
"content": "@mike> this LCD screen is a great resource for hobbiestsI presume you mean “hobbyists”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210529",
"author": "hiroshi",
"timestamp": "2010-11-10T21:18:47",
"content": "I’d like to see someone use this to put a better screen on the Gameboy! Backlit? E-Ink?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210537",
"author": "da66en",
"timestamp": "2010-11-10T21:28:15",
"content": "This is a terrible LCD screen. Power draw might be OK, but I would rather be able to read/see what’s on it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210539",
"author": "adam",
"timestamp": "2010-11-10T21:34:38",
"content": "You might wanna check the picture you posted, it has transparency so the black text of the breakout doesn’t show up on HaD.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "210547",
"author": "Caleb Kraft",
"timestamp": "2010-11-10T21:57:17",
"content": "@adam,thanks. I fixed it. As I’m sure you figured out, our editing panel has a white background.",
"parent_id": "210539",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210543",
"author": "brad",
"timestamp": "2010-11-10T21:50:37",
"content": "@coreylno, it’s the superlative. hobby, hobbier, hobbiest. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210550",
"author": "Tiago",
"timestamp": "2010-11-10T22:05:16",
"content": "dly to a wide range IF inexpensive microcontrollersShould be OF ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210563",
"author": "Anonymous",
"timestamp": "2010-11-10T22:44:49",
"content": "This has been widely known to Game Boy hardware developers for a long time now. =\\ Besides, how it works is pretty damn obvious even based on the pin names alone. I suppose this might be more useful for beginners to electronics who want to play with this kind of stuff but don’t understand how it would work. Well documented.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210615",
"author": "RadBrad",
"timestamp": "2010-11-11T00:05:01",
"content": "Nice hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210646",
"author": "Pilotgeek",
"timestamp": "2010-11-11T01:51:45",
"content": "The original Gameboy screen was pretty bad, but if you can find a Gameboy Pocket screen, it had the same resolution and protocol, but was slightly bigger and MUCH easier to read (actualy greyscale, not that weird green).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210711",
"author": "M4CGYV3R",
"timestamp": "2010-11-11T04:25:01",
"content": "Someone rig it to use a Game Gear screen. Same resolution, though you wouldn’t be able to use the color features.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210804",
"author": "Nick McClanahan",
"timestamp": "2010-11-11T09:16:57",
"content": "I remember playing Zelda (or was it Metroid) on my old gameboy. Just one sidescrolling gray blur, terrible.Good Logic Analyzer practice though!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210915",
"author": "snowdruid",
"timestamp": "2010-11-11T18:07:24",
"content": "is it only me or is this like oh say 15 years late??? as mentioned above the original screen is terrible only thing i can think of is thats its pretty robust compared to newer screen but you would be better of with GBA screens nowaday. GB original are almost collection items now so there not easy to come by. it would be cheaper/easier to get a GBA screen…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211136",
"author": "Craig",
"timestamp": "2010-11-12T00:17:27",
"content": "To clarify, I’m more interested in the video data than in reusing the screen. The screen sucks, but it would be cool to pipe the video out to something awesome-er (giant POV display? VGA link cable? etc etc)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211748",
"author": "John92",
"timestamp": "2010-11-13T04:56:50",
"content": "@hiroshiBacklighting is pretty common on these systems. NeX on 8bitcollective also put a gameboy pocket screen on more than one gameboy. Looks great, especially when backlit.@snowdruidDefinitely not collector’s items. The gameboy is the second best selling handheld of all time, if I’m not mistaken. Right after the DS. They’re still very common and inexpensive. Definitely not considered a collector’s item just yet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212394",
"author": "snowdruid",
"timestamp": "2010-11-14T18:59:36",
"content": "@john92thats why i said almost collectors items.maybe its different where you live but i didnt see a gameboy on sale for some years now no matter what the condition. on the other hand everyone is trying to get rid of their gba or even (broken) ds original/lite…@craigthx for the clarification i can see the interest in that",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "486625",
"author": "Josh",
"timestamp": "2011-10-22T04:31:10",
"content": "I wanted to connect my Game boy colour to my TV but haven’t done anything like this before. I don’t want to buy more than I have to and I was wondering if anyone could outline how it do this.Thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "503809",
"author": "eeks",
"timestamp": "2011-11-09T06:35:24",
"content": "Josh, in short you read the data as the fellow did to find the protocol and as he rebuilt on the computer you must process this with fpga/arm or something and gen a composite signal or even easier VGA with a dspic sure possible. Moo! yay for fullstops",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "506456",
"author": "Josh",
"timestamp": "2011-11-12T07:22:23",
"content": "Cool not sure how to do that. But thanks for explaining it a bit.",
"parent_id": "503809",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "2970405",
"author": "nono",
"timestamp": "2016-03-29T16:46:47",
"content": "Nobody to plug an arduino to this ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "5434549",
"author": "devicemodder1",
"timestamp": "2018-11-09T22:49:01",
"content": "link is dead. anyone got a mirror?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6293120",
"author": "Scott",
"timestamp": "2020-11-09T17:57:36",
"content": "This capture at The Internet Archive appears to have all the images.https://web.archive.org/web/20130503071647/http://flashingleds.wordpress.com/2010/10/26/intercepting-the-gameboy-lcd",
"parent_id": "5434549",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,337.369095
|
||
https://hackaday.com/2010/11/10/single-motor-walker-for-santa-pede-challenge-inspiration/
|
Single-motor Walker For Santa-Pede Challenge Inspiration
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"contest",
"hexapod",
"lego",
"santa"
] |
This LEGO hexapod uses just one motor for motion. In the video after the break you can see that what [Valetnin Bauer] accomplished is almost magical, using just 210 parts. A central drive shaft uses worm gears to transfer motion to each of the legs. The limb mounting technique results in a sort of rowing motion that closely mimics what you’d expect to see from a biological hexapod.
We thought this might provide some inspiration for the
Buy Break Build: Santa-pede challenge
. Sure, using LEGO is a lot easier than reusing Santa parts. But a lot can be accomplished with a little creativity. Another point of inspiration might be
this one-motor walker
that should be a snap to adapt to the challenge. Better get going, just twenty days let until the project deadline!
[youtube=http://www.youtube.com/watch?v=FeAY8XTzhWo]
[via
Tinkernology
]
| 11
| 11
|
[
{
"comment_id": "210512",
"author": "fluidic",
"timestamp": "2010-11-10T20:35:52",
"content": "Yes, using gears to distribute and redirect motion from a single mechanical source is magical.Or at least, it was when the ancient Greeks were playing with them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210518",
"author": "hoditohod",
"timestamp": "2010-11-10T20:48:54",
"content": "Amazing!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210519",
"author": "Ned",
"timestamp": "2010-11-10T20:49:33",
"content": "I love it. Now to find a way to make it turn :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210523",
"author": "roboman2444",
"timestamp": "2010-11-10T20:53:34",
"content": "Ned: he could just use 2 motors, one for each side of legs. The timing might get a tad bit off… but it would work anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210531",
"author": "Gilliam",
"timestamp": "2010-11-10T21:18:55",
"content": "@roboman2444 and Nedhttp://www.zoid.us/deathstinger.htmthis ZOIDS model does the dual motor thing, with a wired remote control add-on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210536",
"author": "Jack Sprat",
"timestamp": "2010-11-10T21:27:54",
"content": "Perhaps if he could drop it into reverse he could use that to switch some gears around and allow it to turn still using one motor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210612",
"author": "Kevin Harrington",
"timestamp": "2010-11-11T00:00:18",
"content": "This is what i like to call an “elegant design”, well done!If you were to use a universal joint to separate the 3 leg pairs, you could put in a servo to bend the whole body. This would allow it to turn because the walking force vectors would no longer be in a straight line. This method would also keep the drive as one motor with a consistent drive offset.I made something like that 10 years ago with 4 legs, and a LOT more hot glue.http://www.ctrobots.org/pics/2000/jan00ke2.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210736",
"author": "Jon King",
"timestamp": "2010-11-11T06:37:09",
"content": "@fluidicYou are what is wrong with hackaday.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210816",
"author": "kristian",
"timestamp": "2010-11-11T10:27:59",
"content": "@Kevin: I will get those instructions and try that!this is brilliant; it really is elegant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210820",
"author": "strider_mt2k",
"timestamp": "2010-11-11T10:47:33",
"content": "I agree with fluidic.If it was done before by someone else it can’t possibly be magical or deserve to be revisited for any reason.Luddite.Being a douche predates civilization itself, so don’t bother doing it. -it’s been done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210833",
"author": "levsha128",
"timestamp": "2010-11-11T12:44:02",
"content": "Russian project:http://roboforum.ru/forum88/topic2053.html",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.414639
|
||
https://hackaday.com/2010/11/10/wireless-doorbell-rings-a-real-bell/
|
Wireless Doorbell Rings A Real Bell
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"chime",
"door bell",
"hand bell",
"lego",
"wireless"
] |
Tired of hearing that flat sounding wireless doorbell when visitors happen to come by? Don’t get rid of it,
improve it by adding a real bell
. This hack rigs up a small hand bell to the wireless doorbell receiver. It was prototyped using LEGO pieces to shake the sound out of the bell, but the finished version uses a servo motor on a wooden frame. An Arduino monitors the wireless receiver, driving the servo when a transmission from the front door button is received.
Traditionally door bells have actually been
chimes that are struck with solenoids
. We appreciate this rendition because it adds an element of kinetic art to the home, laying bare the functional hardware instead of hiding it in a box. Don’t miss the demonstration after the break.
This is the finished version:
[flickr video=http://www.flickr.com/photos/lilspikey/4957539834/]
Here’s the LEGO version. We actually like this one bettter.
[flickr video=http://www.flickr.com/photos/lilspikey/4816173880/]
[via
Boing Boing
]
| 13
| 13
|
[
{
"comment_id": "210500",
"author": "fartface",
"timestamp": "2010-11-10T19:48:32",
"content": "All that work, and then half ass it with black tape battery holders….Nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210513",
"author": "nah!",
"timestamp": "2010-11-10T20:42:40",
"content": "this is a very expensive and unintuitive way to ring a bell",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210545",
"author": "therian",
"timestamp": "2010-11-10T21:52:49",
"content": "Solenoid would be better solution",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210551",
"author": "soopergooman",
"timestamp": "2010-11-10T22:12:06",
"content": "It reminds me of a duck, the wooden shape of it. Guess they could call it the “Duck-Bell”. lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210553",
"author": "adam",
"timestamp": "2010-11-10T22:16:33",
"content": "wow nobody raged that its still has an arduino board on it yet? I’m surprised! The idea is pretty cool, but i don’t have a normal door bell, everybody just knocks. lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210561",
"author": "Mica",
"timestamp": "2010-11-10T22:40:58",
"content": "OMG!!! arduino arduino arduino !!!Nice bell.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210591",
"author": "Whatnot",
"timestamp": "2010-11-10T23:16:17",
"content": "You know you can just goto many a shop and buy a mechanical chime/bell doorbell, and many people still use them, so then you just need to make the activation wireless.What I’m thinking now is that it might be fun to go alternative and have a bell that ‘knocks’ instead of chiming.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210654",
"author": "truthspew",
"timestamp": "2010-11-11T02:13:08",
"content": "I need to hack my doorbell too. I need something LOUD that will overcome earphones. I’m also thinking of incorporating a strobe light. Just so you can’t miss the doorbell.That way UPS and Fedex don’t have an excuse to tag and run, those bastards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210815",
"author": "knox",
"timestamp": "2010-11-11T10:26:40",
"content": "@ truthspewI hooked my door bell to my X10 for the very same reason.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210875",
"author": "PlastBox",
"timestamp": "2010-11-11T15:26:42",
"content": "Aaah, for some reason, this is exactly the sort of thing that rings my bell! Simple, fairly useless, Rube Goldberg’ish setups that bring functions of computers and electronics into the real, physical world.Like SpriteTM’s mechanical hitcounter:http://spritesmods.com/?art=mechctrSo useless compared to Google analytics, and yet so infinitely much more satisfying!Nice work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2584435",
"author": "Casey Miller",
"timestamp": "2015-05-28T09:58:57",
"content": "I’ve been thinking about getting the Ring wifi doorbell but then came across this site; I love how classic this doorbell looks! Definitely gonna get something like this. Thanks for posting!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2630089",
"author": "Casey Miller",
"timestamp": "2015-07-01T09:56:15",
"content": "I love how traditional this looks! There are definitely lots of cool doorbells that you could choose from. Here’s one site I personally love to go to –http://doorbellhome.org",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3041586",
"author": "Saba Sepherteladze",
"timestamp": "2016-06-02T17:50:11",
"content": "This was really interesting! I personally love wireless doorbells and believe they are an incredible addition to modern homes. I found a great website to check out some of the top wireless doorbells –http://wirelessdorobellreview.com",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.527831
|
||
https://hackaday.com/2010/11/10/robotic-mobility-for-the-little-ones/
|
Robotic Mobility For The Little Ones
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"babie",
"disabled",
"infant",
"Joystick",
"mobility",
"WheelChair"
] |
Researchers at the University of Delaware are
helping disabled kids by designing robot transportation
for them. Exploring one’s environment is an important part of early development. Disabilities that limit mobility can prevent young children from experiencing this. Typically children are not offered a powered wheelchair until they are five or six years old, but adding intelligent technologies, like those found in the UD1, makes this possible at a much younger age. Proximity sensors all around the drive unit of the robot add obstacle avoidance and ensure safety when used around other children. When confronted with an obstacle the UD1 will stop, or navigate around it. The unit is controlled by a joystick in front of the rider but it can also be overridden remotely by a teacher, parent, or caregiver.
[via
Robot Gossip
]
| 20
| 20
|
[
{
"comment_id": "210467",
"author": "Ronald",
"timestamp": "2010-11-10T18:16:38",
"content": "That joystick is going to poke an eye out of a sleepy toddler….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210468",
"author": "harmfulguy",
"timestamp": "2010-11-10T18:20:37",
"content": "Please tell me I’m not the only one who thinks that thing looks like an early Dalek prototype. Is that how Davros got started?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210470",
"author": "ryan",
"timestamp": "2010-11-10T18:27:28",
"content": "Anyone else thinking daleks from Dr Who?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210471",
"author": "Radiowave911",
"timestamp": "2010-11-10T18:28:43",
"content": "My first thought was ‘It’s a Dalek’ :)Seriously, though, it sounds like a great idea, however as Ronald mentioned, that joystick si a bit of a concern. Not sure what to replace it with, though…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210474",
"author": "PocketBrain",
"timestamp": "2010-11-10T18:33:45",
"content": "@Radiowave: ditto the Dalek.EX-TER-MI-NATE!EX-TER-MI-NATE!EX-TER-MI-NATE!As for replacing the joystick, depending upon the individual disability, you could put the kid in a toddler roll-around type base that responds to tilt; the kid just leans in the direction he needs to go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210475",
"author": "andrew",
"timestamp": "2010-11-10T18:36:45",
"content": "Umm.. I can see the need for a sensor to prevent someone from going over a cliff, but being able to avoid obstacles is a fairly important skill with mostly minor repercussions for failure that we probably should let children experience on their own. This seems like a case of engineers solving a problem that doesn’t exist unless of course you just plan to keep your kid restrained in the bot and have it set to follow you around the mall (so you don’t have to, you know, actually do any parenting). In that case, it could be quite helpful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210486",
"author": "Brian",
"timestamp": "2010-11-10T19:07:29",
"content": "I’m a father of a young child and thankfully I do not have to be concerned with him having limited mobility, but I can imagine. This project could help tremendously with the gap in the early development of these kids with limited mobility. They cannot crawl around, walk around, run around… that is so important for their little brains during their early development. The ability for these kids to move around will help them more than you can imagine.As far as the joystick problem goes (poking their eye out)… this is an early prototype guys; things like that will be resolved. Heck, it is probably not even close enough for them to fall onto anyways. For those who have kids at that age, you know you strap them into EVERYTHING you put them into.. a harness would completely solve that issue and it would be normal for the child anyways.As far as the worry of falling off a cliff… or driving off into the road… or anything else you can imagine… you still have to be a parent. My kid is relatively normal (as much as any engineer’s kid can be :) but I would still have to watch him like a hawk anywhere near those kinds of obstacles.. he could fall off a cliff or run out in to the road with his two little feet; he doesn’t need a robot to accomplish that!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210488",
"author": "Brian",
"timestamp": "2010-11-10T19:13:11",
"content": "When I see this prototype the first thing that comes to mind is that the online community should try to get involved. We have a plethora of experienced engineers, robotics experts, and hackers out there that just love to collaborate on community projects. What better project to collaborate on than something that can benefit our kids in such a way. If you think you have something to contribute to this project, contact Neil at the University of Delaware.. his contact info is on the site link in the article. Read what they have posted.. send him your ideas. You never know what little tidbit you have that you think is simply common sense that the designers of this thing didn’t think of yet. Let’s use our collective brain power for something really useful and beneficial.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210497",
"author": "djrussell",
"timestamp": "2010-11-10T19:41:28",
"content": "parental control you say? does anyone else see real-world mario kart races with babies? :Dthis is really cool by the way. maybe some kind of authentication could be used so that only the child could control it and it wouldn’t respond to other inputs? i can imagine some bully 4 and 5 year olds jumping on board and wanting to drive it around. especially since it’s more car than wheelchair. RFID wrist band maybe?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210502",
"author": "fartface",
"timestamp": "2010-11-10T19:51:14",
"content": "@Radiowave: ditto the Dalek.EX-TER-MI-NATE!EX-TER-MI-NATE!EX-TER-MI-NATE!YAY!!! EXTERMINATATITEE!!!! YAY!!!!as to the bully part, give the kid a defend buton that fires flamethrowers and toasts little bully jhonny. If you wipe out the bully kids early on, society benefits as a whole.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210508",
"author": "Matt",
"timestamp": "2010-11-10T19:59:04",
"content": "What would be really helpful is an IV pump/pole that automatically follows the little ones around. I have worked in paeds for years and this is a real problem especially for kiddies getting chemo or TPN who are on a pump 24 hours a day. Some serious safety issues to be resolved first of course…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210509",
"author": "Kobukson",
"timestamp": "2010-11-10T20:01:03",
"content": "Biased on this since I know the guys, but I still prefer the Wii balance board version that Ithaca College did (http://eportfolios.ithaca.edu/msmith11/blogs/senior_project/about/)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210511",
"author": "Michael",
"timestamp": "2010-11-10T20:21:50",
"content": "@djrussell As far as the RFID wristband idea, why not take that further, RFID implant chip! That way the bully can’t just remove the wristband.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210608",
"author": "joedirt",
"timestamp": "2010-11-10T23:37:19",
"content": "“Providing important technical support to the project is Ji-Chul Ryu, a doctoral candidate in the Department of Mechanical Engineering with expertise in the planning and control of mobile robots.”Apparently he wasn’t that important, since he was Mr.X camera hog until the second last paragraph..hehe..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210630",
"author": "ben",
"timestamp": "2010-11-11T00:41:35",
"content": "DAVROS !!!!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210650",
"author": "Captain Zilog",
"timestamp": "2010-11-11T02:04:47",
"content": "The kid looks MUCH more intelligent than Davros…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210715",
"author": "DivePeak",
"timestamp": "2010-11-11T04:43:31",
"content": "“Davros” was my first thought… It looks waaay too much like a Dalek prototype :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210811",
"author": "strider_mt2k",
"timestamp": "2010-11-11T10:13:24",
"content": "“Jim Henson’s Dalek Babies”Awesome way to re-purpose the ‘bot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1033795",
"author": "Andrea",
"timestamp": "2013-07-31T15:11:39",
"content": "Technological devices are important to help all patients, but specially those with disabilities. The safety of the technological devices needs to be address prior to their release to the public. The robotic transport is an example of a great technological device that is safe and helps children with disabilities explore their environment at an early age. Safe ways in which technology can help children with disabilites should be explored further. Patients and caregivers should be educated on the proper use of the technological devices to ensure their proper and safe use. As technology continues to advance more attention should be pay to creating devices that increase mobility of children with disabilities.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1035125",
"author": "Erick Benjamin Perez",
"timestamp": "2013-08-03T03:13:58",
"content": "It is great invention that meshes technology, medicine, and takes into account the importance of human development. The report on the unit mentioned why it was constructed in the first place which is to aid the child in its development and made mention on safety which is of utmost importance. However, it would be fantastic if there were studies available in reference how much more exactly would their lives be enriched by such devices. Besides the basics of providing a handicap child with mobility at a younger age I think such device would provide additional uses. Such uses perhaps that may be implemented is monitoring of vital signs as oxygen saturation and heart rate that would be helpful in cystic fibrosis patients. On the other hand, it would be valuable to know to the price of such unit. Knowing the monetary value and the extent that it aids a child develop would assist a person or government to know if such a device is worth purchasing. I know some people may think and say something along the lines that a child’s development cannot be named or priced but if employment of the device doesn’t make a big difference and turns out to be super expensive then yes price should be taken into account.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.670472
|
||
https://hackaday.com/2010/11/10/monotron-openly-monophonic/
|
Monotron Openly Monophonic
|
Joseph Thibodeau
|
[
"digital audio hacks",
"Toy Hacks"
] |
[
"analog",
"korg",
"monophonic",
"schematic",
"synth"
] |
Famous synth manufacturer Korg has
released the schematics
(
get them here if you don’t like to fill out forms
) for their wee little Monotron for all to see and use! This is great news for anyone looking to build up a synth from scratch or to circuit bend their existing monotron. The filter circuits alone would be fun to add to an existing electronics setup.
Granted there are
already
many
examples
of monotron mods out there, but that shouldn’t stop you from experimenting with your own variations. Now with the schematics you can make fundamental changes to the architecture of the synth all from the comfort of your own CAD software. Want more oscillators? Distortion? It’s all out there for you to explore. We’re very interested to see how far people will run with this. And big ups to Korg for recognizing the value of hacking!
[via
Retrothing
]
[youtube=http://www.youtube.com/watch?v=vFWpUt9Jt4A]
| 17
| 16
|
[
{
"comment_id": "210458",
"author": "nes",
"timestamp": "2010-11-10T17:38:13",
"content": "Nice! Nothing too unfathomable in there. The one thing that shouts ‘unobtanium’ is the way they drew the Q1 in the VCO, but from what I can tell it’s just two discrete transistors in one package.Would be nice if a cheap microcontroller could be made to simulate this so we don’t have to source all those discretes :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210463",
"author": "reboots",
"timestamp": "2010-11-10T18:11:19",
"content": "Q1 is a Rohm IMX9, eminently obtanium via Mouser and Digi-Key:http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=IMX9T110CT-NDThe IMX9 was probably used as a cheap way to get a matched and/or thermally coupled transistor pair, although there’s no mention of matching in the datasheet.You could trade circuitry for code, but I think that misses all the appeal of the Monotron.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210464",
"author": "goldscott",
"timestamp": "2010-11-10T18:11:25",
"content": "@nesThat’s the first thing that caught my eye as well.A quick google search of IMX9 yields a datasheet showing it’s just two discrete transistors in a single package.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210466",
"author": "Digitalundernet",
"timestamp": "2010-11-10T18:15:03",
"content": "I’m very interested in making my own synth but after looking at the schematics I can tell I’m too stupid to get this",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "589689",
"author": "ScottInNH",
"timestamp": "2012-02-27T04:00:28",
"content": "@Digitalundernet – You could do it… just don’t try -this- circuit for your first attempt.Buy a kit synth from getlofi..… you get support if you need it..… those kits are small enough that you’ll learn what they do.",
"parent_id": "210466",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210489",
"author": "th0mas",
"timestamp": "2010-11-10T19:18:00",
"content": "@Digitalundernet if you want to make your own synth look at either the midibox.org midibox SID or MFOS soundlab.Never considered the idea of recreating the schematic in eagle and then modifying it though, thanks for that idea hackaday!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210526",
"author": "blue carbuncle",
"timestamp": "2010-11-10T21:11:05",
"content": "@Digital HaD also has a nice section in the howto tutorials on a pretty simple one. I found the MFOS and it’s junky-crazy webpage to just be too annoying. Ray Wilson is a bit of an asshole. The atari punk console is another easy project to start with. Ya can even google up some radioshack electronic kit videos in which people have done some pretty impressive stuff. Analog Box is a fun piece of software to design circuits with tons of bleep/drone modules made by users. Happy building :)I love my little monotron. I’m getting a second one for my b-day to actually crack open and tinker with. Like most say, it is worth it for the filter alone. And it looks like the devs were super nice about making it tinker-friendly from what I’ve seen which is awesome :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210554",
"author": "Fallen",
"timestamp": "2010-11-10T22:18:17",
"content": "Those back to back transistors are fairly common in amplifier design. It’s usually for temperature stability I think.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210558",
"author": "svofski",
"timestamp": "2010-11-10T22:32:00",
"content": "If you’re new to analog circuitry, don’t even think of trying to build this thing all from scratch at once using only a circuit as a reference. Build simple modules one by one, see how they work first, then join them together.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210562",
"author": "js",
"timestamp": "2010-11-10T22:42:27",
"content": "@DigitalundernetIf this is too hard, build a kit:http://www.paia.com/They sell modules to a full blown analog synth.http://www.paia.com/p9700s.asp",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210586",
"author": "Rich Decibels",
"timestamp": "2010-11-10T23:01:05",
"content": "@Digitalundernet instead of the traditional (read: expensive) analogue synth, you could consider starting with Lunetta’s. They have synth-like characteristics but are much more glitchy and lo-fi. Kind of a step up from the Atari Punk Console. Eminently engaging fun and super cheap. More info:http://electro-music.com/forum/index.php?f=160",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210588",
"author": "Rich Decibels",
"timestamp": "2010-11-10T23:06:25",
"content": "I wonder if anyone could identify for me where the VCF ‘starts’. I’d love to have this filter as a stand-alone module. Is the input at the junction of Q13 and Q14, or do I have to go back further still?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210647",
"author": "alan turing's dog",
"timestamp": "2010-11-11T01:53:28",
"content": "Wanna beat thomas dolby at his own game? Check out the japanese equivalent of PAIA – Gakken. Except they come pre-assembled.http://www.youtube.com/watch?v=4XNESJBvPrsPAIA… great guy[z], legendary, amazing company… but basically the entire product line should have been rendered to silicon years ago. Bring back the jolt, and get us synthetic patch cords so we can change configs on the fly. The newest products are basically 20 years old. I like classics, but there’s a world of new users out there who want and need features like sampling and cascading reverb units with multiple taps.Come on PAIA, you can do it! Give us the weird CV analog synth equivalent of a quad rack setup using surface mount components in a bento-box form factor! Give us an eeprom that will save patches… we know you’re not dead yet!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210831",
"author": "svofski",
"timestamp": "2010-11-11T12:17:56",
"content": "@Rich Decibels: start with the Line In jack, or the point marked as VCO (TP8). Following it is a buffer amp IC4D which you would need anyway and then left to right there’s the VCF. But you also need the wire marked [cutoff> near IC4B to control it, I guess. There’s also VCF gate input to IC4A.Fun stuff, adding it to my endless list of things never to be done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211017",
"author": "trav",
"timestamp": "2010-11-11T21:21:06",
"content": "oh wow I didn’t even know this synth existed. YES!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212928",
"author": "Aalpha",
"timestamp": "2010-11-15T17:16:20",
"content": "Nice! Actually, this is bittersweet as I was diligently working on reverse engineering this thing. … All done! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213401",
"author": "JamesP",
"timestamp": "2010-11-16T15:18:37",
"content": "Note that there are multiple connections to the “Bias” net generated by IC2B (text search the PDF). This is a floating virtual ground enabling the use of single supply rail op amps.The little triangle is not ground! ;)J",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.723718
|
||
https://hackaday.com/2010/11/10/kinect-open-source-driver-demo-and-hacking/
|
Kinect Open Source Driver Demo And Hacking
|
Caleb Kraft
|
[
"Xbox Hacks"
] |
[
"Kinect",
"microsoft"
] |
The competition for the first Open Source driver for the Kinect is heating up. [Marcan42] has
released a driver
that does video and depth. He was able to do this without an Xbox and you can see it in action after the break. [LadyAda] has been hard at work as well,
recording and dumping the data
, and even writing a
“hello world” that utilizes the motors in the Kinect
.
We don’t know for sure how [Marcan42] recorded his data, but we can see [Ladyada] is using a high speed Beagle USB 480 to record the data going both ways between the Xbox360 and the Kinect. That’s the kind of toy we would like to have sitting around. For those who don’t know what all the fuss is about,
there’s a contest
to see who can get an open source driver out there first. The prize has grown every time Microsoft says something bad about it.
[thanks Rapps]
[youtube=http://www.youtube.com/watch?v=rKhW-cvpkks]
| 33
| 33
|
[
{
"comment_id": "210431",
"author": "doragasu",
"timestamp": "2010-11-10T16:05:16",
"content": "MARCAN GRANDE!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210432",
"author": "Pix3l the B1t",
"timestamp": "2010-11-10T16:08:33",
"content": "“…[Ladyada] has bee hard at work…”, you’re missing an ‘n’ :pThis is awesome, I can’t wait until it’s fully interfaceable with computers :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210435",
"author": "Filespace",
"timestamp": "2010-11-10T16:11:36",
"content": "Why does that look like a thermal imaging device…=)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210438",
"author": "apophis",
"timestamp": "2010-11-10T16:20:52",
"content": "wait, didn’t microsoft say they made it difficult to hack?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210441",
"author": "EquinoXe",
"timestamp": "2010-11-10T16:36:07",
"content": "@Filespace:“Why does that look like a thermal imaging device…=)”Because 3D data has to be translated to a 2D output.With thermal imaging the spectrum we can’t see must be translated to our visible spectrum.It is the translation to our visible spectrum that makes both look the same because it doesn’t correlate with the colors we normally associate to these images.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210442",
"author": "Diego Spinola",
"timestamp": "2010-11-10T16:44:54",
"content": "Congratulations Marcan!Can’t wait to see the 3d scanners that are going to be made with it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210444",
"author": "chango",
"timestamp": "2010-11-10T16:47:39",
"content": "Awesome work in just a few days!Next step is to turn that height field into a mesh and map the color camera onto it. Then it will be obvious what’s going on here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210447",
"author": "openkinect",
"timestamp": "2010-11-10T16:54:11",
"content": "@marcan42 used the dumps from ladyada (adafruit). Adafruit got a beagle and started the process. I can only assume she was getting frustrated at how long this was taking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210448",
"author": "Squirrel",
"timestamp": "2010-11-10T16:54:13",
"content": "lol first thing I thought when I saw that video was: Hey!! that’s my laptopon topic: Impressive. That was under a week since it was announced. Hope [Marcan42] puts the $$ to good use..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210459",
"author": "NatureTM",
"timestamp": "2010-11-10T17:55:58",
"content": "Wow, I thought it would take months. Nice work.Microsoft really could have made this more difficult. I wonder why they didn’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210462",
"author": "starlino",
"timestamp": "2010-11-10T18:08:41",
"content": "Stereo Vision can be implemented easily with 2 cheap usb camera and opencv (as explained for example herehttp://www.starlino.com/opencv_qt_stereovision.html), the fact that Kinect has the infrared and probably hardware processing is a great plus which is a bonus for many robotics applications.I will not be surprised if Microsoft releases a driver for their Robotics Studio soon…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210465",
"author": "spyder_21",
"timestamp": "2010-11-10T18:14:02",
"content": "I think they made it easy due to the fact it would not hurt sales 1 bit, in fact increase them. Its not like coping games.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210477",
"author": "alan",
"timestamp": "2010-11-10T18:39:52",
"content": "You couldn’t get a camera stand?!good work, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210478",
"author": "alan",
"timestamp": "2010-11-10T18:44:09",
"content": "To me it seems like the reason that MS doesn’t want people to hack the hardware is that they want total control of their products. Why would the consumers buy a $60 game if they could download something as an opensource project. They have licensing obligations to provide to their game developers, insuring that people would actually buy their stuff. Most people that buy a kinect in regards to using it as a hacked device will most likely not buy the games. (not to say that some people still would though).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210487",
"author": "DrAltaica",
"timestamp": "2010-11-10T19:08:31",
"content": ">The competition for the first Open Source driver for the Kinect is heating up.>[Marcan42] has released a driver that does video and depth.>To demonstrate the driver you must also write an application with one “window” showing video (640 x 480) and one window showing depth.Ok so why isn’t the contest over?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210494",
"author": "P",
"timestamp": "2010-11-10T19:33:19",
"content": "@spyder_21the hardware is probably a loss leader, so increased sales of the kinect device without game sales will actually cost microsoft money",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210515",
"author": "rasz",
"timestamp": "2010-11-10T20:46:44",
"content": "hah so it looks like cameras can be accessed with one of the V4L drivers, sweeeeet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210530",
"author": "Jack Sprat",
"timestamp": "2010-11-10T21:18:53",
"content": "According to an article I read, Microsoft is more concerned with the software that runs the device and they say the most impressive part is the software they use to understand the 4 microphones. They are able to eliminate the echo of sound produced by the xbox. But the really cool part is that it can zero in on the voice of the player even when the room is full of noisy people and even follows the player as he/she moves. It’s always listening unlike other systems where you have to push a button to let it know it should be waiting for something important. I’m sure Microsoft put the tons of security in the software.The Kinect is so awesome. I see it as the beginning of a Star Trek like computer. “Computer, dim lights.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210564",
"author": "bitflusher",
"timestamp": "2010-11-10T22:45:33",
"content": "as soon as the open source driver will be ported to the wii and fun homebrew things start to emerge i think microsoft will have a problem with this…will be fun though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210569",
"author": "Luiz Borges",
"timestamp": "2010-11-10T22:53:28",
"content": "Haven’t seem the source code, but if it was easy to hack into it, it must be a very good design (from the interfacing stand point). That’s a plus, not a minus for the developers. If the result of your code is clear and understandable, you made a good work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210719",
"author": "Chris",
"timestamp": "2010-11-11T05:07:29",
"content": "That was fast. Well done, Marcan42 and Ladyada!@Jack Sprat: I think the sound localization is easier than the skeletal tracking, and could be reproduced. I’ve seen some good papers on it. Basically you FFT the audio signal once to get the spectrum, which gives you a jumbled mess of frequencies and harmonics. Then run another FFT on the spectrum to get the cepstrum, which allows you to determine which harmonics are related, and therefore from the same sound source. Pick the loudest harmonic set that resembles the characteristics of a human voice. Then go back to the original FFT spectrum, and look at the phase difference for that harmonic set from different microphones; that gives you the speaker’s position. Once you have that, you have all the info you need to perform echo and noise reduction, basically all by removing frequencies that have phases which couldn’t have come from the speaker’s location. Finally, take the remaining frequency/phase info and do a reverse FFT to reconstruct the filtered audio. Any DSP gurus willing to take a shot?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210725",
"author": "cgimark",
"timestamp": "2010-11-11T05:24:31",
"content": "The SDK from the company that makes the hardware includes windows and linux drivers and from everything their sales department says its standard USB code for interfacing so nothing tricky involved. USB is a terrible thing to use if you want your hardware protocols kept quiet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210732",
"author": "Jonathan Wilson",
"timestamp": "2010-11-11T06:07:32",
"content": "What we dont know yet about the audio is how much work is done by the audio hardware in the Kinect and how much is done on the 360 itself.Once someone figures out how to record the audio, we can see how much post processing needs to be applied to it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210749",
"author": "Whatnot",
"timestamp": "2010-11-11T07:20:34",
"content": "On the subject of audio, you know; if you read the specs on your standard cheap realtek audio codec you’ll see they often have stereo mic inputs and clever algorithms to cancel echo and enhance sound directionally, it’s just that nobody uses it for some reason, apart from a rare notebook here and there maybe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210803",
"author": "error404",
"timestamp": "2010-11-11T09:16:57",
"content": "@spyder_21:The suggestion has been that making it difficult to hack was part of Microsoft’s agreement with PrimeSense. Those guys sell multi $k setups with similar capabilities to industry. An easy-to-interface baby version at an order of magnitude lower price might stand to cannibalize their market.How much truth there is to that we’ll likely never know. They may just try to use it to push copies of Win 8.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210813",
"author": "strider_mt2k",
"timestamp": "2010-11-11T10:15:06",
"content": "F MS for telling folks what to do with their toys after they’ve made their nut.Hack it hard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210814",
"author": "DrAltaica",
"timestamp": "2010-11-11T10:20:13",
"content": "@Chris> I think the sound localization is easier than the skeletal tracking, and could be reproduced.I don’t know Chris, reproducing skeletal tracking is pretty easy…1. Go tohttp://i61www.ira.uka.de/users/knoop/VooDoo2/doc/html/index.html2. Download GPL source code3. enjoy!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210817",
"author": "rasz",
"timestamp": "2010-11-11T10:31:28",
"content": "I think Microsoft meant TORX screws when they said its tamper resistant :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210904",
"author": "Rodger Esquivez",
"timestamp": "2010-11-11T17:26:19",
"content": "Just take a look at the abundance of Amazon reviews for Kinect (mostly 5 stars). families are also uploading many Kinect videos on youtube. All smiles and laughs. You have to give MS their props. It’s a hit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211007",
"author": "xorpunk",
"timestamp": "2010-11-11T21:03:25",
"content": "@starlino:also with variable geometry differentials like those used in modern digital camera algorithms, mostly by Sony. It’s actually not that hard, and can be done without IR or extra input channels like second camera.It’s what they use here except with IR like Sony cams do because it’s more reliable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211645",
"author": "bryce",
"timestamp": "2010-11-13T00:12:23",
"content": "This will be sick if xbox takes it to the next level and makes a gun or some sort for call of duty and other games. So its all most like the movie gamer It would be history",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216090",
"author": "alan turing's dog",
"timestamp": "2010-11-21T20:27:16",
"content": "Could we have a seperate category for Kinect hacks?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "359569",
"author": "Sunny Yang",
"timestamp": "2011-03-16T04:31:31",
"content": "Hi, the video is wonderful.One newbie question:I’d like to save the distance information of dots scattered from the Kinect onto a moving object, flexible such as thin paper(size of Legal), in front of the Kinect sensor(IR sensor).In this case, do I need the Beagle USB480, suggested by ladyada, for data capturing?ThanksSunny",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,338.026488
|
||
https://hackaday.com/2010/11/10/permanent-root-exploit-found-for-g2/
|
Permanent Root Exploit Found For G2
|
Chris Nelson
|
[
"Android Hacks",
"Cellphone Hacks"
] |
[
"android",
"g2",
"jailbreak",
"root",
"unlock"
] |
The g2 has finally been
rooted
. Even though a temporary root exploit was found shortly after the phones release, a NAND lock prevented modifying the non-volatile RAM for a permanent root. Some controversy surrounded the g2 when it was
erroneously
thought to have a rootkit protecting the OS. Supposedly the rootkit would watch for changes to the file system and then reset the phone to default settings when any unauthorized changes were made. On the other hand a
NAND lock
functions by fooling the operating system into thinking there isn’t any memory available, essentially “locking” the memory in key areas. Once it was discovered to have the NAND lock it was only a matter of time before the g2 was permanently rooted. NAND locks have become a popular (and unsuccessful) deterrent employed by device makers to stop the jailbreaking comunity. While this exploit is nothing groundbreaking it is another notch in the belt for the jailbreaking community and a welcome benefit to g2 users.
| 9
| 8
|
[
{
"comment_id": "210420",
"author": "svofski",
"timestamp": "2010-11-10T15:32:19",
"content": "reset the phone to default settings when anyauthorizedchangeswheremadeUh, I thought this was Mike’s article :D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "210423",
"author": "Caleb Kraft",
"timestamp": "2010-11-10T15:38:43",
"content": "@svofski,fixed, don’t blame them, blame me.",
"parent_id": "210420",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210421",
"author": "spiritplumber",
"timestamp": "2010-11-10T15:33:57",
"content": "This is nothing short of heroic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210422",
"author": "Andrew",
"timestamp": "2010-11-10T15:34:38",
"content": "A nice article on NAND locks, and the overall idea of how they’re implemented and how to circumvent them, etc and other projects this has been implemented on I think should be called for after this. First I’ve ever heard of it, anyways. Interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210424",
"author": "svofski",
"timestamp": "2010-11-10T15:42:48",
"content": "@Caleb: just friendly picking. Good article anyway :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210445",
"author": "A Different Andrew",
"timestamp": "2010-11-10T16:51:42",
"content": "I agree with the first Andrew! (I’m honestly a different Andrew. :) An in-depth technical article on how NAND lock works and how it was circumvented would be great. Anybody at HAD willing to flex their journalistic muscles and interview some hackers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210825",
"author": "Andrei",
"timestamp": "2010-11-11T11:13:21",
"content": "I guess I could be counted as an Andrew too :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210878",
"author": "onaclov2000",
"timestamp": "2010-11-11T15:33:31",
"content": "That’s great news, now when an “automated” tool comes out, then I’ll consider it, (Don’t want to chance bricking my new shiny toy)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "309265",
"author": "Spazz",
"timestamp": "2011-01-19T17:27:04",
"content": "Just received a new G2 and rooted it, my first time rooting an android, in about 15 minutes. Its pretty simple to follow the instructions. Love the Cyanogen mod i put on it.@onaclov2000I think you are just lazy, thats why you dont want to try it. If you can follow the steps you will be fine.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,337.856431
|
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