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https://hackaday.com/2010/06/28/tank-drone-with-automatic-targeting-and-tracking/
Tank Drone With Automatic Targeting And Tracking
Mike Szczys
[ "Robots Hacks" ]
[ "airsoft", "drone", "tank", "terminator" ]
Humankind is making some great advances toward our own destruction with this tank drone . It’s got a powerful set of treads with an Airsoft rifle perched atop. Thanks to the cameras and the laser this thing can accurately target based on color. The hardware is controlled by a collection of Arduino boards connected via XBee so that Processing can be used on a computer. Just combine this with the facial recognition from yesterday and you’ve got the first generation of Terminators. Watch the clip after the break and you’ll realize that we’re doomed. [youtube=http://www.youtube.com/watch?v=4q4VtxZJfoE]
23
23
[ { "comment_id": "153641", "author": "Winston", "timestamp": "2010-06-28T16:57:39", "content": "The day we’re completely doomed is the day that they program this to turn around when it hears someone creeping up behind it.Or when they make another model with panoramic vision.", "parent_id": null, ...
1,760,377,418.909308
https://hackaday.com/2010/06/28/sonoluminescence/
Sonoluminescence
Caleb Kraft
[ "Misc Hacks" ]
[ "luminescence", "water" ]
Sonoluminescence is one of those strange phenomenon that many would never encounter outside an academic environment. For those who have never heard of it, Sonoluminescence is when tiny bubbles suspended in a liquid emit light while being vibrated at certain frequencies. We were pleased to see that some plans are out there on how to build your own device to produce it . [via io9 ]
22
16
[ { "comment_id": "153622", "author": "Andrew", "timestamp": "2010-06-28T15:14:15", "content": "I did this in high school for a science fair project. Its not that hard, and pretty freeking cool.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "3241496", ...
1,760,377,419.200763
https://hackaday.com/2010/06/28/interview-with-steven-levy-about-hackers/
Interview With Steven Levy About Hackers
Caleb Kraft
[ "classic hacks", "News" ]
[ "hackers", "history", "levy" ]
[youtube=http://www.youtube.com/watch?v=w_jwcCseDk0] [Dale Dougherty] interviews [Steven Levy] about the history of hacking. [Levy]’s book Hackers has been released in a 25th anniversary edition. The interview alone is fascinating and the book is a must read for any hacker.  If they offered a course in hacker culture somewhere, we’re positive that this book would be the textbook. The 25th anniversary edition has been updated to include major figures from the last 25 years including [Bill Gates], [Steve Wozniak] and others that have impacted our lives drastically. [via MakeZine ]
11
11
[ { "comment_id": "153618", "author": "biozz", "timestamp": "2010-06-28T14:42:57", "content": "i highly recommend this book its really interesting", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153619", "author": "Iv", "timestamp": "2010-06-28T14:44:21",...
1,760,377,419.24396
https://hackaday.com/2010/06/28/links-expanded-snake-on-led-matrix/
Links Expanded: Snake On LED Matrix
Mike Szczys
[ "LED Hacks" ]
[ "16f877a", "matrix", "pic", "pong", "snake", "tetris" ]
[Yosh] came through with a link to the Snake playing LED matrix that he read about in our links post from yesterday . It seems that [Arty Fart] actually built three of these in green, yellow, and red. You can see him throw one together (an 8-10 hour job) in the video after the break. In addition to playing Snake the PIC 16F877A can also scroll messages, play a mean game of Tetris, and show a Pong screen saver on the 144 LED display. We love the clean build and the urge to make another LED matrix is becoming irresistible. Now off to eBay for a good deal on a bulk LED order. [youtube=http://www.youtube.com/watch?v=I5fp1eIqBMI]
12
12
[ { "comment_id": "153597", "author": "Brennan", "timestamp": "2010-06-28T13:00:53", "content": "I think “screen saver” is the wrong term here…", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153599", "author": "strider_mt2k", "timestamp": "2010-06-28T13:...
1,760,377,418.962624
https://hackaday.com/2010/06/27/dtg-using-a-stock-printer/
DTG Using A Stock Printer
Mike Szczys
[ "Lifehacks" ]
[ "dtg", "epson", "printer", "r1900" ]
[youtube=http://www.youtube.com/watch?v=qc3OrrsnMHs] Here’s a Direct-to-Garment device that uses a stock printer . [Jeff German] used an Epson R1900 with the stock firmware to get the results seen in the video. His hardware modifications involve adding two buttons to the printer’s circuit board. For DTG beginners this certainly lowers some of the obstacles to getting started. [Jeff] is working on detailed instructions but for now take a look at our own How-to for building a DTG printer .
27
27
[ { "comment_id": "153462", "author": "John Avitable", "timestamp": "2010-06-27T20:44:07", "content": "I love techno just as much as the next guy, but it’s nice to have a break for once on a demonstration video.Cool stuff, I’m thinking about trying to make one of these myself.", "parent_id": null,...
1,760,377,419.299957
https://hackaday.com/2010/06/27/audible-tuner-for-the-blind/
Audible Tuner For The Blind
Mike Szczys
[ "Musical Hacks" ]
[ "ATmega168", "blind", "guitar", "tuner" ]
[Lain Sharp] modified this guitar tuner so it can be used by his blind friend . In the picture above you can make out a small white project box that houses the additional electronics. Inside is another battery and an ATmega168 providing a connection for an earphone. The AVR chip connects to each LED on the tuner and converts the visual tuning meter to an audio cue. Check out the demonstration clip after the break to see how it works. Now if we could just figure out how to get our strings in tune with our built-in keyboard . [youtube=http://www.youtube.com/watch?v=iMBsbtwIAzs]
17
13
[ { "comment_id": "153459", "author": "3-R4Z0R", "timestamp": "2010-06-27T20:34:03", "content": "A tuning fork is more accurate, easier to use and faster to use, especially for blind people who have better hearing than normal people. In that sense it’s not really an improvement……but hey, it’s a hack! ...
1,760,377,419.085292
https://hackaday.com/2010/06/27/now-you-see-me-now-you-dont-face-detection-scripts/
Now You See Me, Now You Don’t, Face Detection Scripts
Jakob Griffith
[ "Security Hacks", "Video Hacks" ]
[ "anonymous", "camera", "famicam", "script", "security", "twitter" ]
Straight out of Ghost in the Shell, the Laughing Man makes his appearance in these security camera shots . [William Riggins] wrote us to let us know about his teams Famicam scripts . After taking a screen shot, faces are detected and counted, ‘anonymized’, and the final image is uploaded to Twitter . The process is rather simple, and sure beats wearing a bunch of white reflective camouflage . All that’s left is detecting specific faces to make anonymous, and of course uploading the script to every camera in the world. Easy, right?
19
19
[ { "comment_id": "153431", "author": "nimrod", "timestamp": "2010-06-27T18:35:54", "content": "thanks but old news:http://www.awgh.org/?p=21seen it live at 25c3 :)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153432", "author": "Jesse", "timestamp": "...
1,760,377,418.853805
https://hackaday.com/2010/06/27/hackaday-links-june-27-2010/
Hackaday Links: June 27, 2010
Mike Szczys
[ "Hackaday links" ]
[ "crt", "snake", "wire" ]
Precision CRT manufacture Here’s a great video from Tektronix about building a precision cathode ray tube . The tube manufacture method was developed to use in oscilloscopes and we’d guess it dates back to the early 1960’s. [Thanks Bill] Snake on an LED matrix We would have done a full post o this beautifully built LED matrix but we just couldn’t find much information on it. For now, enjoy the video of the device playing the classic game of Snake. [Thanks Xdr] Wire bundling We’re not sure if this is brilliant or just snake oil. Here’s a method of bundling wires together by twisting them with an electric drill. We’ve always just used our hands but we’ve never really worked in any kind of volume either. [Thanks Kacper]
38
38
[ { "comment_id": "153397", "author": "lnm", "timestamp": "2010-06-27T15:38:50", "content": "Twisting wires using a drill gets them a lot tighter than by hand. Very important if you’re looking to cut down on noise due to time varying magnetic fields (not a problem for most people, but we’ve had to do ...
1,760,377,419.373969
https://hackaday.com/2010/06/26/cd-controlled-lawn-mower/
CD Controlled Lawn Mower
Mike Szczys
[ "digital audio hacks", "Repair Hacks" ]
[ "perimeter", "robomow" ]
https://hackaday.com/wp-…069769.jpg?w=470
[Oliver Nash] was enlisted by his parents to fix their robotic lawn mower . They owned a Robomow which happily navigated their yard to keep the grass at a nice level. These robots rely on a perimeter wire with a special signal running through it to ensure they are inside of the mowing area. Confronted by a dead perimeter module, [Oliver] ordered a new unit and disassembled the old module to study the components. He also measured the signal generated by the replacement unit. In the end he was able to produce a replica of the signal using audio software, burn it to a CD, and playback the recording using the perimeter wire. It’s a bit of a zany idea but it worked.
35
33
[ { "comment_id": "153268", "author": "Jake", "timestamp": "2010-06-26T18:11:01", "content": "LOL!I don’t understand why he didn’t just fix the original board, and why he seems to have the ability to analyze the original signal, use a logic analyzer and reproduce the signal via CD, yet he claims that ...
1,760,377,419.030858
https://hackaday.com/2010/06/26/portable-atari-the-size-of-a-game-boy/
Portable Atari The Size Of A Game Boy
Mike Szczys
[ "handhelds hacks" ]
[ "atari", "cartridge", "flashback 2", "portable" ]
This portable Atari is the result of [Mario’s] toils. The core system is an Atari Flashback 2, an embedded system released in 2005 with several built-in games. The stock titles weren’t enough so [Mario] added a cartridge slot in order to play whichever games he wishes. The case was originally the packaging for an iPod touch so you know it’s sturdy. We also like the free-formed audio amplifier as seen in the work log . Does anyone know if the Flashback 2 has a pause feature ?
19
19
[ { "comment_id": "153247", "author": "gordon james", "timestamp": "2010-06-26T16:26:11", "content": "pretty cool good job!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153256", "author": "MS3FGX", "timestamp": "2010-06-26T17:05:10", "content": "Th...
1,760,377,419.138894
https://hackaday.com/2010/06/26/cat-hacking/
Cat Hacking
Caleb Kraft
[ "Medical Hacks" ]
[ "amputee", "prosthetics" ]
[youtube=http://www.youtube.com/watch?v=-CSoroo-bkg] After a gruesome accident involving a harvester, [Oscar] lost his legs. [Noel Fitzpatrick] a mad scientist veterinary surgeon came to the rescue. [Oscar] now has leg implants prosthetic feet. It is pretty amazing that a cat would even function in this manner. Have you ever seen one try to walk with tape on its feet ? We have to wonder why that cat doesn’t have some more awesome looking legs though. We think that cat needs to team up with [ Aimee Mullens ], the olympic athlete with no legs, to get a better looking pair .
32
31
[ { "comment_id": "153229", "author": "Chris", "timestamp": "2010-06-26T14:22:36", "content": "Creeepy!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153231", "author": "Chris", "timestamp": "2010-06-26T14:33:58", "content": "That was much creepier ...
1,760,377,419.898976
https://hackaday.com/2010/06/26/multitouch-using-water/
Multitouch Using Water
Caleb Kraft
[ "Multitouch Hacks" ]
[ "multitouch", "water" ]
[youtube=http://www.youtube.com/watch?v=cuihQVRpRrQ] [Taichi Inoue] is back again, this time with a multitouch system that uses water as the touch surface .  The setup consists of a tank of water placed atop an LCD, a lamp, and a web cam. The web cam pics up the light that is reflected when something breaks the surface of the water. It is, as far as the computer is concerned, no different than the blob recognition we see with many of the home made multitouch systems . Mixed with his Yukikaze , this guy might end up with the most relaxing computer system in the world. [via Makezine ]
17
17
[ { "comment_id": "153219", "author": "blue carbuncle", "timestamp": "2010-06-26T12:10:03", "content": "Lol HAD read my mind! I am building the webcam picture frame multi-touch this afternoon with a friend :) This is so very cool as well! Good work Taichi! I guess this is next weekend’s project :)...
1,760,377,419.607897
https://hackaday.com/2010/06/25/jumping-robot-looks-like-a-product-of-doctor-wily/
Jumping Robot Looks Like A Product Of Doctor Wily
Mike Szczys
[ "Robots Hacks" ]
[ "chiba institute", "jump" ]
[youtube=http://www.youtube.com/watch?v=QBYT2PeLxUk] We love it when footage of a robot prompts a “holy crap” response from us. This little guy , a product of the Chiba Institute of Technology, uses four rods as a suspension system for jumping. The bulk of the bot can be moved up or down, using its momentum to raise the wheels and jump to the next level. Check out the clip after the break to see how getting down involves a controlled fall as graceful as a dancer. Doctor Light better get cracking on another robot to take this one out when it turns on us. [youtube=http://www.youtube.com/watch?v=Qf4kc95rCbc]
33
33
[ { "comment_id": "153076", "author": "Gerrit Coetzee", "timestamp": "2010-06-25T18:44:56", "content": "Wow, that is insanely cool. I was not expecting motion that smooth.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153077", "author": "Xeracy", "times...
1,760,377,419.669554
https://hackaday.com/2010/06/24/multi-multimeter-clock/
Multi Multimeter Clock
Mike Szczys
[ "clock hacks" ]
[ "16f628a", "multimeter", "pic", "simpson" ]
[Alan Parekh] built this clock to look like a Multimeter using analog multimeters for the three displays. A PIC does the timekeeping and feeds a specific amperage to the three displays which show hours, minutes, and seconds. We’ve seen clocks that use analog meters before. [Alan] took the concept to the next level, replacing the graduated markings behind each needle to correspond to the correct display. He’s also included precise calibration so that each meter is as accurate as possible. After watching his video we’re convinced this is a refined product ready for a wide market, at least for those who appreciate the geek factor of the display.
19
19
[ { "comment_id": "152820", "author": "kirov", "timestamp": "2010-06-24T17:22:33", "content": "would be a lot better if it didn’t say “multimeter clock” and let you figure out hours, minutes, and seconds for yourself, this just cheapens it a bit.", "parent_id": null, "depth": 1, "replies":...
1,760,377,419.834825
https://hackaday.com/2010/06/24/mushroom-terrarium-automation/
Mushroom Terrarium Automation
Caleb Kraft
[ "home hacks" ]
[ "climate", "mushroom", "plant", "tererrium" ]
[youtube=http://www.youtube.com/watch?v=wexdNx_StRc] Like many specialty plants, growing mushrooms requires that you keep a fine balance between humidity and temperature. this can be fairly tedious at times, so many opt for automated systems. [Anthony_p1234] has chosen to build his own .  Using an Arduino, he controls power to two heating pads, a sonic humidifier, and an air pump to keep his mushrooms happy. He shares the process of building the system, testing and calibrating the parts and putting it all in use. We didn’t see any schematics, but he does describe everything fairly well. The source code is available for download.
22
19
[ { "comment_id": "152774", "author": "Matt", "timestamp": "2010-06-24T15:07:28", "content": "“rowing mushrooms” I’ve rowed a boat, never a mushroom", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152776", "author": "John Boxall", "timestamp": "2010-06-24...
1,760,377,420.282049
https://hackaday.com/2010/06/24/mr-burns-prevents-sun-burns/
Mr. Burns Prevents Sun Burns
Caleb Kraft
[ "home hacks" ]
[ "cancer", "sun burn", "uv" ]
[nmcclana] wrote out this very detailed instructible on building Mr. Burns, a sun burn alarm .  Enter your skin type, sunscreen type, and UV levels for the day and Mr. Burns will let you know when it is time to go seek shelter or re-apply that sunscreen. Built on a Propeller platform, he’s using a blue LED as the UV sensor. He mentions that the device is fairly accurate, however people tend to put sunscreen on too thin and that will throw off the readings. There is a video of it in action on the instructible.
13
13
[ { "comment_id": "152763", "author": "snorkle256", "timestamp": "2010-06-24T14:36:26", "content": "Now if we can only get this in a wrist watch format for portability.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152766", "author": "Liam", "timestamp"...
1,760,377,420.040088
https://hackaday.com/2010/06/24/fusion-in-my-backyard/
Fusion, In My Backyard?!
Jakob Griffith
[ "News" ]
[ "backyard", "energy", "free", "new york", "nuclear" ]
Here is the 32nd amateur fusion reactor built in a basement. [Mark Suppes] is right behind [Will Jack] , the (then) 17 year old [Thiago Olson] , and [Mileiux] in engineering a homemade nuclear reactor. By taking two light elements and colliding them under extreme speed and pressure, a heavier element and energy are produced. [Mark’s] goal is to lasso in investors to earn enough money to build a larger Bussard Reactor , which will hopefully produce as much energy as it consumes. Free energy at only a couple million dollars; who wouldn’t pass up this opportunity? [Thanks Imp]
79
50
[ { "comment_id": "152746", "author": "Chee", "timestamp": "2010-06-24T13:44:43", "content": "Where’s the Delorean?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152747", "author": "Stephen Gentle", "timestamp": "2010-06-24T13:56:26", "content": "I’...
1,760,377,420.184664
https://hackaday.com/2010/06/23/working-with-the-at90usbkey/
Working With The AT90USBKey
Mike Szczys
[ "classic hacks" ]
[ "AT90USBKey", "hid", "usb" ]
The Genearic HID tool is meant as an easy way to create your own human interface devices. The project has the added benefit of showing us how to hack the hardware on the AT90USBKey developement board . The AVR-based device, which we saw used to make an SNES cartridge reader , comes in at just over $30 but with a few caveats. First, the breakout pads for the pins are not 0.1″ pitch and require some creative soldering to get at them easily. But the walk through also covers converting the board to run at 5v when in USB host mode, and altering the populated components to reclaim pins on the AT90USB1287 chip. The fun isn’t limited to this board, there’s also a home brew alternative based around the same chip. [Thanks Juan]
12
12
[ { "comment_id": "152556", "author": "Bob", "timestamp": "2010-06-23T18:44:25", "content": "One thing I like about the PIC microcontrollers is that they have through-hole DIP models with USB built in (e.g. the 18F4550 and the 16 bit 24FJ64GB). For less than $7, you get a one-chip, hobbyist-friendly s...
1,760,377,420.093189
https://hackaday.com/2010/06/23/live-fire-half-life/
Live Fire Half-life
Mike Szczys
[ "Peripherals Hacks" ]
[ "accelerometer", "gun", "half-life", "pistol", "shovel" ]
We don’t know how we missed this when it first came out, but there is a hack out there that combines a .22 caliber pistol with the video game Half-life . Simple is best and that motto is in use here. A wall was built down range to use as a projection screen. Accelerometers mounted on the drywall report vibration data from the bullet strike which is used to triangulate its location. This targeting data is then sent to the game interface. As you can see in the video after the break this works like a charm. The [Waterloo Labs] personnel that developed this are also responsible for that iPhone controlled car . The antics we witnessed in that project carry over to this one as they illustrate using the setup to play Half-life with a couple of shovels at 2:12 into the clip. [youtube=http://www.youtube.com/watch?v=WNZCS-coZjY] [Thanks Entropy]
48
46
[ { "comment_id": "152521", "author": "Steve", "timestamp": "2010-06-23T16:54:33", "content": "Cool thing but a ridiculous waste of ammunition", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152522", "author": "Some Useless Geek", "timestamp": "2010-06-23...
1,760,377,419.983802
https://hackaday.com/2010/06/23/giant-led-matrix/
Giant LED Matrix
Caleb Kraft
[ "clock hacks", "LED Hacks" ]
[ "led", "microporcessor", "pic" ]
We all love blinky lights. What we love even more than blinky lights is a very detailed tutorial with great photos. [Richard Kline] has written this fantastic tutorial on how to build a large 5×7 LED matrix and control it with a PIC processor .  The bulk of the body is a foam insulation board, covered with a diffuser. Source code and schematics are available for download from the site. If you’ve ever thought about getting into PIC processors, this would be a great beginner project. [via MakeZine ]
6
6
[ { "comment_id": "152517", "author": "chad", "timestamp": "2010-06-23T16:39:37", "content": "Sounds like the project they were doing athttp://www.teamhackaday.com/chat/", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152575", "author": "osgeld", "timesta...
1,760,377,420.228406
https://hackaday.com/2010/06/25/selective-laser-sintering-rig-on-the-cheap/
Selective Laser Sintering Rig On The Cheap
Mike Szczys
[ "cnc hacks" ]
[ "hardboard", "selective laser sintering", "sls" ]
[Peter’s] been hard at work designing an affordable Selective Laser Sintering (SLS) 3D printing platform . We first saw his work on this back in April when he was working mostly with acrylic . Now he’s moved on to a design that relies on hardboard which has resulted in a build that comes it at around $20 including the motors. The design uses a dual z-axis table for the feed stage and the build stage. That is to say, as the powder is fused together by the laser the platform it is on is lowered. Next to this platform, the feed platform is raised, allowing the power to be swept onto the build stage. This setup is moving in the right direction, but we’re still waiting to see what works when it comes to adding the laser and sourcing the powder.
16
16
[ { "comment_id": "153062", "author": "djrussell", "timestamp": "2010-06-25T17:09:52", "content": "both hyperlinks go to the old article. :/", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153065", "author": "tomas316", "timestamp": "2010-06-25T17:17:41",...
1,760,377,420.333412
https://hackaday.com/2010/06/25/soap-compatibility-for-sqlmap/
SOAP Compatibility For SQLmap
Mike Szczys
[ "Security Hacks" ]
[ "injection", "python", "soap", "sqlmap", "xml" ]
[_coreDump] was doing some database vulnerability testing using SQLmap to automate the process. To his dismay, the package was unable to test using the Simple Object Access Protocol. Faced with having to manually test all of the SOAP vulnerabilities he decided to work some Python magic and add support. His solution allows SQLmap 0.8 to parses XML data from the SOAP protocol by modifying three files from the package. He’s made the diff files available if you need this functionality for your own security testing.
11
11
[ { "comment_id": "153068", "author": "lambda_bunker", "timestamp": "2010-06-25T17:53:30", "content": "I don’t think hackaday is a place for lame software haxing discussion so remove the article.If I want to read crap like this I go to governmentsekurity.TBH this sql injection he demonstrated is never...
1,760,377,420.382004
https://hackaday.com/2010/06/25/adding-motion-control-to-an-rc-transmitter/
Adding Motion Control To An RC Transmitter
Mike Szczys
[ "Radio Hacks" ]
[ "accelerometer", "gyroscope", "motion control", "rc", "transmitter" ]
If your soldering skills are up to snuff you can add a motion control feature to your radio controlled transmitter . [Starlino] used a combination accelerometer and gyroscope module as an alternate source of analog control information. He built a filter to dial in the analog voltage range to match that of one of the sticks on the controller. A switch is used to disconnect the signal when motion input is not desired. This would be a nice addition to one of those more creative aerial hacks .
5
5
[ { "comment_id": "153086", "author": "tk", "timestamp": "2010-06-25T19:37:16", "content": "does noone else think this could be somewhat usefull?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153097", "author": "greycode", "timestamp": "2010-06-25T20:30...
1,760,377,420.427585
https://hackaday.com/2010/06/25/yukikaze-music-visualizations/
Yukikaze, Music Visualizations
Caleb Kraft
[ "digital audio hacks", "home entertainment hacks" ]
[ "eq", "music", "spectrum" ]
[youtube=http://www.youtube.com/watch?v=b4HtUwAkVDg] [Taichi Inoue] put together this beautiful visualization system called Yukikaze, japanese for “snow wind”. Basically a spectrum analyzer, Yukikaze is delightful to watch. We would love to see what kind of response he gets, as most of the footage shows very slowly changing smooth jazz. While we don’t think he gets crisp EQ visualizations out of this since it is a single large chamber, we still think it is amazing to watch. [via MakeZine ]
14
14
[ { "comment_id": "153040", "author": "chrelad", "timestamp": "2010-06-25T15:19:05", "content": "This is awesome, and such a simple idea! :D Great job", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "153041", "author": "AK", "timestamp": "2010-06-25T15:19:...
1,760,377,421.070247
https://hackaday.com/2010/06/24/machining-a-horizontal-stirling-engine/
Machining A Horizontal Stirling Engine
Mike Szczys
[ "cnc hacks" ]
[ "candle", "engine", "horizontal", "stirling" ]
Satisfy your need to view some quality machining by looking through this Stirling engine worklog . We’ve seen these engines used a few other times in creating electricity from solar energy , powering a car , and even built from aluminum cans . [David Morrow] built this rendition to push the limits of his machining skills. We’d say he succeeded. The finished piece should run with the help of a heat source such as a candle. There’s no video of this engine, but we’ve embedded a clip of a similar device after the break in order to give you an idea of how this would work. [youtube=http://www.youtube.com/watch?v=Nf6EMUIVxn8] [Thanks The Ideanator]
25
25
[ { "comment_id": "152879", "author": "Brennan", "timestamp": "2010-06-24T21:19:17", "content": "Gorgeous.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152880", "author": "vonskippy", "timestamp": "2010-06-24T21:25:15", "content": "Nicely done.", ...
1,760,377,420.720852
https://hackaday.com/2010/06/24/adding-a-serial-port-to-the-zipit/
Adding A Serial Port To The Zipit
Mike Szczys
[ "handhelds hacks", "Linux Hacks" ]
[ "3.5mm", "adapter", "rs232", "serial port" ]
[Geordy] added a serial port to his Zipit . It uses a 3.5mm jack as the connector. He managed to include an RS232 level converter inside the case. Both components were hard to fit into the cramped quarters but he did it and he kept the hacker-friendly device looking nice too.
19
19
[ { "comment_id": "152866", "author": "OuchMyFingers", "timestamp": "2010-06-24T20:39:21", "content": "Cripes, that makes my hand cramp just looking at it. with the comparison to the serial connector, my thumb would cover a third of the keyboard.Nice clean job though. Always like seeing clean, seamles...
1,760,377,420.786258
https://hackaday.com/2010/06/24/unwrapping-360-degree-video/
Unwrapping 360 Degree Video
Mike Szczys
[ "Video Hacks" ]
[ "360", "openframeworks", "processing", "video" ]
[Golan Levin] found a way to unwrap the 360 degree images he created with his camera. He’s using a Sony Bloggie HD camera which comes with a 360 degree attachment for the lens. This produces a donut shaped image (seen in the upper left) that was not all that palatable to [Golan]. He used Processing and openFrameworks to create a program that lets him unwrap the donut into a flat image, or create a ring of video where the viewer is at the center and can scroll left or right to see the rest of the filmed environment. He released the source so you can adapt the program if you’re using a different 360 video setup . [Thanks Kyle]
20
17
[ { "comment_id": "152848", "author": "SheeEttin", "timestamp": "2010-06-24T18:59:35", "content": "I don’t know about video, but the GIMP can do this for still images. It’s a simple polar-to-rect conversion. (Filters > Distorts > Polar coordinates.)", "parent_id": null, "depth": 1, "replie...
1,760,377,420.658627
https://hackaday.com/2010/06/23/iphone-4-teardown/
IPhone 4 Teardown
Jakob Griffith
[ "iphone hacks", "Teardown" ]
[ "a4", "apple", "cpu", "early", "iphone", "ram", "teardown" ]
iFixit traveled all the way to Japan to bring you this iPhone 4 teardown , only to be shipped the device unexpectedly two days early ! We were surprised that the A4 processor (its naked body displayed for the world this past April) contained within the iPhone 4 had 512MB of ram, compared to the 256MB of the iPad. Other features include the 1420mAh battery (201mAh more than the 3Gs ), 5MP rear camera and front VGA camera, and the use of micro-sim . Frankly, we don’t see ourselves getting the device immediately, but how excited are you for the iPhone 4?
36
35
[ { "comment_id": "152458", "author": "osgeld", "timestamp": "2010-06-23T14:07:36", "content": "yea yea, its a couple pcb’s jammed full of high pitch smd parts and a lcdI don’t know why people get all giggly about tear downsbut whatever floats your boat", "parent_id": null, "depth": 1, "re...
1,760,377,421.024926
https://hackaday.com/2010/06/23/another-take-on-a-bicycle-built-for-two/
Another Take On A Bicycle Built For Two
Mike Szczys
[ "Transportation Hacks" ]
[ "bicycle", "bike", "double decker", "tandem" ]
We normally advocate wearing a helmet when biking in case you get hit by a car. In this case the guy on the bottom of this double-decker bicycle should wear a helmet to avoid a boot to the head. When we started watching the video after the break we thought that [James] had just built a really really high bike . Not the case, he built an over-under tandem bicycle. What’s more outrageous? Check out that killer kick-stand twenty seconds into the clip. [youtube=http://www.youtube.com/watch?v=G3J7-geqUBQ]
36
35
[ { "comment_id": "152444", "author": "nes", "timestamp": "2010-06-23T13:08:41", "content": "What japes and tomfoolery. I don’t see an Arduino however.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152446", "author": "isama", "timestamp": "2010-06-23T13...
1,760,377,420.953851
https://hackaday.com/2010/06/22/next-hope-badge-hacking-primer/
Next HOPE Badge Hacking Primer
Mike Szczys
[ "cons" ]
[ "badge", "msp430", "next hope", "OpenAMD", "pic" ]
[Travis Goodspeed] is taking a look at the attendee badges for this year’s Next HOPE conference. He’s given us a pretty good look at what is on the board, what it means to you, and how you can get at it. Of course the final hardware specs are a secret until conference time, but this will help you get some ideas and ensure that you bring the right add-on hardware. We normally try not to do too much quoting, but one of [Travis’] statements literally makes us laugh out loud (as opposed to what most people describe as lol): “These badges are active RFID tags which beacon the position of each attendee a few times a second, so that the god damned devil army of lies–by which I mean the Next HOPE badge committee–can track each attendee around the Hotel Pennsylvania.” No matter how you feel about the badge committee, the tradition of hacking conference badges is a fun, rewarding, and often frustration past-time. The badges are actually using the concept of OpenAMD. The last three letters stand for Attendee Meta Data which is an evolving concept. How can meta data about attendees be useful to all involved in a non-invasive way? How about associating yourself with a concept, like microcontroller programming. What if you could search to find out where other people interested in that are right now? Could be great… could end up in an impromptu meeting around the restrooms for no good reason. Either way, take a look at the teaser video covering the topic after the break. Oh, one more note about the hardware. This year they’re moving away from PIC based badges to the more energy-efficient MSP430 line. It’s not one of the value-line processors that the Launchpad is meant for, but this bigger-brother ‘F’ chip will be no problem to work with if you’ve already spent some time with the ‘G’ series. [youtube=http://vimeo.com/12032834]
10
10
[ { "comment_id": "152308", "author": "nono", "timestamp": "2010-06-22T21:35:51", "content": "HOLY SHIT!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152338", "author": "Dongle", "timestamp": "2010-06-22T23:46:40", "content": "I f-ing want one!!!",...
1,760,377,421.224877
https://hackaday.com/2010/06/22/update-atari-pause-button/
Update: Atari Pause Button
Mike Szczys
[ "News" ]
[ "2600", "atari", "circuit", "kit", "pause" ]
The Atari 2600 pause circuit is now available in a kit form. We saw this pause method back in February and the kit uses the same circuit. We don’t really need a kit for this, the board is very simple to throw together. But we do appreciate the detailed installation instructions (PDF) that accompany it. After all, you don’t want to kill you classic gaming rig with a botched install. [Thanks CPUWIZ]
10
9
[ { "comment_id": "152295", "author": "nubie", "timestamp": "2010-06-22T20:56:18", "content": "you = your", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "152373", "author": "Mr_Bishop", "timestamp": "2010-06-23T02:48:52", "content": "Because we all st...
1,760,377,421.180904
https://hackaday.com/2010/06/22/playstation-2-portable/
PlayStation 2 Portable
Mike Szczys
[ "handhelds hacks", "Playstation Hacks" ]
[ "portable", "ps2" ]
[Raizer04] just completed his PlayStation 2 portable build . He feels that the PS2 hardware has much more to offer than the PSP and that’s why he chose to cram the PS2 slim hardware into a portable case. He started with an electronic toy to serve as a case donor and used bondo to form openings for the controller, speakers, lights, and screen. A beautiful paint job and some metal work resulted in the pleasant finish seen above. On the back you’ll find a lighted case fan, hard drive, and USB port. There’s no optical drive as games are loaded from a thumb drive. Take a look at the demo video after the break, but do yourself a favor and turn your sound all the way down first. If this doesn’t quench your thirst for portable console projects you might also take a look at this N64 build . [youtube=http://www.youtube.com/watch?v=for35aSI_og]
21
21
[ { "comment_id": "152206", "author": "Anon", "timestamp": "2010-06-22T17:11:55", "content": "Okay, the sound REALLY is too high.I’m on low right now and it feels like my speakers are bleeding.But other than that, nice build, do want.", "parent_id": null, "depth": 1, "replies": [] }, {...
1,760,377,421.13125
https://hackaday.com/2010/06/22/morse-code-clock/
Morse Code Clock
Mike Szczys
[ "clock hacks" ]
[ "morse code", "propeller" ]
[youtube=http://www.youtube.com/watch?v=vQwGw0s2qAc&w=470] [Johnny Carlo] put another spin on clock displays with his Propeller-based Morse Code clock . He repurposed a tap light, using the tap function as a switch input and actuating the bulb inside with the help of a transistor. If you want to know the time just give it a tap and the device will transmit back to you in a series of flashes. This is great if you’re contemplating a career as a Navy Signalman or just need another way to practice Morse Code . [Thanks Mike]
14
14
[ { "comment_id": "152186", "author": "Drake", "timestamp": "2010-06-22T16:11:38", "content": "Cool concept.I’m surprised that nobody has commented on the use of propellers in underpowered applications. This certinally doesnt make use of the full abilities of the 8 processors.On that note maybe someon...
1,760,377,421.273906
https://hackaday.com/2010/06/22/ti-makes-a-big-bid-for-the-hobby-market/
TI Makes A Big Bid For The Hobby Market
Mike Szczys
[ "News" ]
[ "launchpad", "msp430", "programmer", "ti" ]
This morning Texas Instruments unveiled Launchpad, a development platform for their low-cost MSP430 line of microcontrollers. We’ve seen these chips before, most notably in the ez430 Chronos sports watch . We see this as a bid for the hobby market currently enjoyed by Arduino, PIC, AVR, and others. TI’s biggest selling point is price, but we’re going to wait to share that with you. Join us after the break to see what the package offers, then decide if the price is right. What is it? We received a contact request on our tip line from a public relations firm on behalf of Texas Instruments. The video conference paired us with one of their engineers who took us through the details of the package, mentioning the low price tag every minute or so. Launchpad is a programming and development board for the TI MSP430 . It has a machined DIP socket that can accept chips with up to 20 pins. All of these pins are broken out to the header ports on either side of the board, which resemble the Arduino layout to us. Good news, unlike the Arduino the header spacing falls into the 0.1″ divisions necessary to interface with common protoboard. TI is also looking for community involvement, pushing thier Lunchapad Wiki to help you get stated and asking that you add you knowledge as you find success with the 16-bit platform. What’s inside? Each Launchpad device comes with a whole lot of goodness. In addition to the board itself you get a 0.5 meter USB cable, two pin headers and two pin sockets for the pin breakout pads, two different MSP430 microprocessors ( MSP430G2211 and MSP430G2231 ), and two free IDEs; Code Composer Studio 4 and IAR Embedded Workbench Kickstart (note that the latter has a 4K or 8K code limitation depending on the processor used). Price Hands down TI is trying to make price the biggest issue with this release. The presentation we were given included the price in large red numbers on seven of the thirteen slides. So here it is: Launchpad will set you back four dollars and thirty cents. And for now shipping is included. Conclusion It’s important to note that we haven’t had the board in hand yet. That being said, for $4.30 it’s worth the risk just to get the USB cable and a couple of processors. We’re amazed that they’ve beaten back the price to this point and delighted that you get the programmer and two microcontrollers, not to mention the other components. We like the fact that they didn’t develop an alternative language like Arduino did for the AVR controllers. This makes it easy to clear the hurdle of setting up a programmer, IDE and toolchain, and get right down to developing in C. After all, the chips are dirt cheap and quite powerful. You may remember 3000 of them from a project we saw over the weekend . We’d imagine the initial demand will be quite high and hope they have the stock to keep up. Update: Unboxing Video [youtube=http://www.youtube.com/watch?v=RVHGjgkFPlU] Demo Application Video [youtube=http://www.youtube.com/watch?v=U0mGoRtYbyg] [digg=http://digg.com/programming/TI_makes_a_big_bid_for_the_hobby_market_Hack_a_Day]
246
50
[ { "comment_id": "152092", "author": "UltraMagnus", "timestamp": "2010-06-22T13:10:25", "content": "TI still don’t get it, what attracts people to arduino is that the programming environment is completely free, not crippleware like both of environments are for this chip", "parent_id": null, "...
1,760,377,421.360774
https://hackaday.com/2010/06/21/psp-homebrew-using-the-half-byte-loader/
PSP Homebrew Using The Half-Byte Loader
Mike Szczys
[ "Playstation Hacks" ]
[ "half-byte loader", "hbl", "homebrew", "psp", "psp go", "sony" ]
[Rich] tipped us off about the Half-Byte Loader which lets you run homebrew on late-model Sony PlayStation Portables. Above you can see a PSP Go running Doom (a screenshot from the video after the break), which is a prerequisite for any cracked device. HBL uses an exploit in the game demo of Patapon 2, which is free for download. A crafted game save loaded onto a Memory Stick gets you to the loader when selected from the continue menu of the game. Right now this method works on all know firmware version 5.0 and higher. Who knows when Sony will take action to kill an exploit like this one. [youtube=http://www.youtube.com/watch?v=PlqaJmZJ7r8]
22
22
[ { "comment_id": "151960", "author": "Nick McClanahan", "timestamp": "2010-06-21T20:36:53", "content": "Wouldn’t it be a nibble loader? :) I’m sure this exploit will be patched pretty quickly – but it’s a worthwhile exercise.What would be better is if Sony allowed homebrew. I’m sure they’re already...
1,760,377,421.418053
https://hackaday.com/2010/06/21/audio-breakout-box-for-macbook-pro/
Audio Breakout Box For MacBook Pro
Mike Szczys
[ "digital audio hacks" ]
[ "amp", "audio", "breakout", "guitar", "macbook" ]
[Billy] wanted to use the audio connector on his MacBook Pro for input and output at the same time. He knew it could be done because Apple sells headphones with built-in microphones that work with the computer. He set out to build a breakout box so that he could connect the components of his choice to the single port. Using a scart-RCA adaptor box he scrapped the scart plug and wired the RCA jacks to the Apple headphone wires. He can now patch the pickup of his guitar to the mic connector, send it through the MacBook, and run the output back to his guitar amp.
28
27
[ { "comment_id": "151936", "author": "biozz", "timestamp": "2010-06-21T19:39:30", "content": "useful but i have seen it on hackaday one to 2 times beforei have no idea why it was necessary to say “for macbook pro” either", "parent_id": null, "depth": 1, "replies": [] }, { "comment...
1,760,377,421.480751
https://hackaday.com/2010/06/21/inductive-charging-for-the-htc-evo/
Inductive Charging For The HTC Evo
Mike Szczys
[ "Cellphone Hacks" ]
[ "charging", "evo", "htc", "inductive", "palm" ]
[Danny] added wireless charging to his HTC Evo . The hard work was already done for him by Palm, it was just a matter of adding that hardware to his phone. A Touchstone induction charging kit for the Palm Pre will cost you just over $40 for the base station and a replacement back cover. [Danny’s] method removes the induction coil from that cover a relocates inside the case of the Evo. He routes two wires around the battery and solders them to positive and ground connections on the board. Once it’s back together the device draws power without any wires . [Thanks Matt]
30
29
[ { "comment_id": "151928", "author": "Mr_Bishop", "timestamp": "2010-06-21T18:39:16", "content": "Verynice, personally I’d rather have a power mat system, but this is nice. then again I would also like to not have a Pink Blakberry pearl lol.", "parent_id": null, "depth": 1, "replies": [] ...
1,760,377,421.572122
https://hackaday.com/2010/06/21/gamings-newest-accessory-headbands/
Gaming’s Newest Accessory: Headbands
Mike Szczys
[ "Nintendo Hacks" ]
[ "firefly", "gyroscope", "headband", "nes", "rifle" ]
These aren’t terrorists, they’re electrical engineering students. For their final project they developed a headband and rifle input system for the NES . The controllers send data to a laptop which then maps out the inputs to NES controller commands and sends them to an original NES console, no emulation here. The controllers in the headband and rifle are Firefly sensor network nodes . Originally, [Kevin] and [Evan] tried using accelerometers for motion information but found the data do be unreliable. After an upgrade to gyroscope modules the interface is much more responsive, as seen about 3:50 into the video after the break. We like seeing motion controller hacks and we appreciate the choice of a classic system (and lesser known game title). This really makes it a whole different game. [youtube=http://www.youtube.com/watch?v=5rwVc6YgX8Y]
16
16
[ { "comment_id": "151914", "author": "JohnnyD", "timestamp": "2010-06-21T17:42:11", "content": "There’s been at least one typo in the last three or four articles. I like reading everything, but I’m a stickler for grammar.", "parent_id": null, "depth": 1, "replies": [] }, { "comme...
1,760,377,421.782535
https://hackaday.com/2010/06/21/100-cnc-mill/
$100 CNC Mill
Caleb Kraft
[ "cnc hacks" ]
[ "final project", "mill", "mit" ]
This final project at MIT turned out quite nice. It is a CNC mill that cost under $100 to make . The tolerances are pretty tight as you can see in the pictures of the PCBs he has milled. He shows that he can even mill mild steel. It is a pretty brief writeup, but you can download build instructions and pcb files. [via HacknMod ]
30
30
[ { "comment_id": "151863", "author": "Onanimous", "timestamp": "2010-06-21T14:52:57", "content": "Actually this machine is quite outdated. The latest one is Mantis9-1:http://makeyourbot.org/mantis9-1", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151864", "...
1,760,377,422.209941
https://hackaday.com/2010/06/20/swarm-light-at-art-basel/
Swarm Light At Art Basel
Mike Szczys
[ "LED Hacks" ]
[ ".NET", "ethernet", "msp430", "xc-2", "xmos" ]
What has 9000 LEDs, 3000 MSP430 processors, six XMOS XC-2 Ethernet modules, and goes blinkity-blink-blink? It’s Swarm Light , an art installation shown at this year’s Art Basel exhibition . [Fredrik Petrini] worked on the hardware that went into building the group of three 3D cubes of LED light modules. Unlike so many art pieces we see he shared the design details of the piece. In the image above you can tell that each cube encompasses several rods of LED modules. Each rod as three rails that provide power, ground, and serial data in addition to serving as the physical structure. Each module has three LEDs on it controlled by one MSP430 processor. The XMOS units each control half of the rods in a cube, getting their instructions over an Ethernet connection from a PC running a program on a .NET framework. It would be an understatement to say this is just a upscaled LED cube . Check out the exhibit in action after the break. It uses an algorithm to analyze the music, taking input from the ambient sound in the room, to control the light fluctuation. [vimeo=http://vimeo.com/12525044] [Thanks Paul]
19
19
[ { "comment_id": "151735", "author": "martinmunk", "timestamp": "2010-06-20T20:21:42", "content": "I actually dont like these LED-cube kind-of-things.. It seems to me that all that comes out of it is a blurry mass of light.But i dont know if this is because it is not recorded in stereo vision, and th...
1,760,377,421.91313
https://hackaday.com/2010/06/20/tetris-code-theory-explained/
Tetris Code Theory Explained
Mike Szczys
[ "handhelds hacks" ]
[ "pic", "tetris" ]
https://hackaday.com/wp-…tetris.jpg?w=470
[Graham] designed this PIC based Tetris game on a single board . The hardware is quite nice but we enjoyed his explanation of the graphics algorithm that he used. Having coded Tetris from the ground up ourselves we understand how difficult it is to explain how the program works. Tracking pieces already on the board as well as moving pieces, making sure that rotation won’t cause a collision with another piece or go out-of-bounds, and looking for completed lines all add up to one bid headache. [Graham’s] method for handling rotation involves choosing a point around which to rotate, measuring how this affects each pixel in the piece, and then checking those pixels for overlaps. It may take a couple of readings, but he’s done a brilliant job of making it understandable. There’s a demo after the break and the link at the top takes you to his treatise on Tetris. [youtube=http://www.youtube.com/watch?v=WKE26TWLdaI]
25
25
[ { "comment_id": "151698", "author": "Johannes", "timestamp": "2010-06-20T18:47:13", "content": "Pretty cool. Got those matrix boards laying around too, nifty idea!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151713", "author": "LifeSizeActionFigure", ...
1,760,377,422.078111
https://hackaday.com/2010/06/18/velosynth-annoys-those-around-you-as-you-ride/
Velosynth Annoys Those Around You As You Ride
Mike Szczys
[ "digital audio hacks", "Transportation Hacks" ]
[ "bicycle", "bike", "computer", "effalo", "synthesizer", "velosynth" ]
We’ve always put stock in ‘the quieter the better’ when it comes to road bikes. You’ll find this truth if you spend 100k on the back wheel of someone with a sqeaky rear derailleur. But apparently the folks at Effalo never learned this lesson as they’ve produced a bike computer that generates noise as you ride . Perhaps it just takes some ingenuity to turn this into a beautiful music maker along the lines of the Force Trainer hack . No problem because the velosynth is a hackable design. The case was made with a vacuum form and inside you’ll find a bunch of small breadboards. The JeeNode , which is an Arduino/Xbee combination, serves as the heart of the device by taking speed and acceleration data from the bicycle wheel. From there it is passed on to various modules, Bob’s your uncle, and sound comes out. Check out their sales pitch after the break and if you’re starting to get some ideas about using this check out the open source info they’ve provided. [vimeo=http://vimeo.com/12657830] [Thanks Kristian]
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[ { "comment_id": "151250", "author": "ProfessorRobinson", "timestamp": "2010-06-18T15:43:03", "content": "They don’t give an example of what the dB levelor SPL of the audio output is. It better not beobnoxious, if it is, what’s the purpose ? To pissoff people and risk getting shot ? wtf ? some ofus w...
1,760,377,421.85982
https://hackaday.com/2010/06/18/talking-poker-timer/
Talking Poker Timer
Caleb Kraft
[ "Arduino Hacks" ]
[ "arduino", "daisy", "poker", "speech", "timer" ]
[youtube=http://www.youtube.com/watch?v=k8iIuPnXzm8] This interesting box of buttons is a talking poker tournament timer . Full of useful tools like a binary time display, words of wisdom, countdowns to the end of the game, and even good old “bicycle built for two” mode (around 1:20).  While we find it fairly difficult to understand, we applaud the feature list, especially the song.  He used an Arduino with a voice shield, so there’s not much to the electronics side, but you can download his source code from his site. [via Makezine ]
7
7
[ { "comment_id": "151235", "author": "Hip", "timestamp": "2010-06-18T14:00:16", "content": "Liquor in front, poker in back…", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151238", "author": "Brennan", "timestamp": "2010-06-18T14:27:30", "content": "...
1,760,377,422.426562
https://hackaday.com/2010/06/17/x-band-linear-rail-sar-imaging/
X-Band Linear Rail SAR Imaging
Caleb Kraft
[ "classic hacks", "Radio Hacks" ]
[ "linear rail imaging", "radar" ]
[Greg Charvat] really wanted high resolution X-Band linear rail SAR imaging system. He wanted it bad enough to scrounge through parts at HAM radio swap meets until he had the bits to build one himself . The unit is used to take high resolution radar imaging. For example, the image above is constructed of push pins behind a foam wall. The synthetic aperture radar system came in at roughly  $250. Not bad at all. You may have to dig through the links a bit to find the build information. Be sure to check out the hardware gallery and the schematics (pdf). [via Makezine ]
17
17
[ { "comment_id": "151098", "author": "CircuitMage", "timestamp": "2010-06-17T19:57:36", "content": "“this radar is capable of approximately 1.4 inches of range resolution. ” puts down my treasure hunting hopes for now….oh well.", "parent_id": null, "depth": 1, "replies": [] }, { "...
1,760,377,422.26219
https://hackaday.com/2010/06/17/student-soaker-wireless-water-gun/
Student Soaker, Wireless Water Gun
Jakob Griffith
[ "Misc Hacks" ]
[ "AVR", "gun", "project", "soaker", "student", "water", "wireless" ]
[youtube http://www.youtube.com/watch?v=0aaQIkLkSIo%5D As far as pranks go, [Austin Shaf’s] wireless hidden water gun is a real treat. The video above goes over a brief explanation and shows the setup in action. The prankster holds onto a wireless AVR remote, and when the unsuspecting victim walks by, he activates a second AVR controlling a pump; spraying water everywhere. While most of us are out of school by now, the project would still be a fun office or perhaps street prank. If you’re one for registering, schematics and source code can be found at AVRFreaks . Alternatively, check after the jump for a copy of both. Related: Office Pranks , and Water Guns . (Click for big, or right click save as.) Here for TX.zip Here for RX.zip
25
25
[ { "comment_id": "151068", "author": "joseph", "timestamp": "2010-06-17T18:09:42", "content": "I’m just imagining walking around with a hand-held baton with a glowing button on one end and a key on the other in an over-paranoid post 9-11 public school…", "parent_id": null, "depth": 1, "re...
1,760,377,422.145413
https://hackaday.com/2010/06/17/the-pr2-calls-the-shots/
The PR2 Calls The Shots
Mike Szczys
[ "Robots Hacks" ]
[ "billiards", "fastfiz", "pool", "pr2", "willow garage" ]
Can you beat this robot at pool ? This sparks something of a “let the wookie win” attitude for us, but we still love to watch the video. This is the PR2 playing pool thanks to the folks over at the Willow Garage. It uses a laser sensor to detect the legs of the pool table, and cameras to find the diamonds and balls at the playing surface rather than using an overhead camera . They cut down on the coding work needed by using FastFiz , an open source Billiards physics library. The final step was building an interface so the robot could use a cue. Check it out after the break (no pun intended). [youtube=http://www.youtube.com/watch?v=HMx1xW2E4Gg] [Thanks Thrasha666 via Engadget ]
15
15
[ { "comment_id": "151059", "author": "RealFire", "timestamp": "2010-06-17T17:37:08", "content": "Wasnt this the robot everybody was saying would kill us all back in 2009? The only thing I could see going wrong would be if it thought you were a cue ball. On the break.", "parent_id": null, "dep...
1,760,377,422.312428
https://hackaday.com/2010/06/17/replacement-speedometer/
Replacement Speedometer
Mike Szczys
[ "Transportation Hacks" ]
[ "arduino", "speedometer" ]
[Howard] built his own replacement speedometer for his truck after the original speedometer cable broke. He’s using surface mount components and produced a two-board design that is quite nice. When he tipped us off he mentioned that this is Arduino powered and uses a hall effect sensor. There’s not talk of this in his writeup but we gather that he’s just using the bootloader on an AVR chip and that he hall effect sensor measures the rotation of one of the wheels. When the vehicle isn’t moving the board alternates between max speed and trip distance. Once he’s on the roll it shows current speed.
36
36
[ { "comment_id": "151023", "author": "Drake", "timestamp": "2010-06-17T16:03:12", "content": "will this pass an inspection i wonder.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151028", "author": "Brennan", "timestamp": "2010-06-17T16:14:55", "co...
1,760,377,422.384905
https://hackaday.com/2010/06/17/building-a-cluster-of-ipaq-pcs/
Building A Cluster Of IPaq PCs
Mike Szczys
[ "computer hacks" ]
[ "cluster", "ipaq", "mdf", "memtest86+", "threaded rod" ]
[Steven Pigeon] got his hands on ten iPaq computers that a friend acquired through an eBay auction. The older machines were in good condition but the march of technology had left them behind as casualties. He’s given them new life by assembling a cluster . The first order of business was testing the hardware to make sure it’s working. [Steven] used memtest86+ that comes along with the Ubuntu distribution of Linux to find one bad memory chip in the bunch (a revelation that took 10 hours to discover on the slow hardware). He assembled the unit above with MDF as a support structure and threaded rod to hang the boards. He ended up with a beautiful module and his next step is to choose the operating system that will pull the whole thing together. We find this build every bit as beautiful as the file cabinet cluster . It’ll be interesting to check back with him and see what kind of performance he can get out of it.
37
37
[ { "comment_id": "151000", "author": "sam", "timestamp": "2010-06-17T15:12:06", "content": "what would be the point of a thing like this? what can it do?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151004", "author": "Phill Pafford", "timestamp": "20...
1,760,377,422.497667
https://hackaday.com/2010/06/20/reverse-geocache-puzzle-gets-downsized/
Reverse GeoCache Puzzle Gets Downsized
Mike Szczys
[ "classic hacks", "gps hacks" ]
[ "18f2520", "geocache", "gps", "pic", "puzzle" ]
[Markus] built his own reverse geocache puzzle box but on a smaller scale than the original . His is based around a PIC 18F2520 and powered by two AAA batteries. The user interface includes one button, a 16×2 character LCD, and a piezo speaker. The box unlocks itself when the GPS module inside detects the proper location on the globe. There is also a secret code that can be tapped on the button to unlock the box prematurely, and another to show the locations in which the user attempted to open the box. This build doesn’t leave much room for a payload, but [Markus] did a great job designing the board and making the components fit as efficiently as possible.
17
17
[ { "comment_id": "151662", "author": "zypher", "timestamp": "2010-06-20T16:46:57", "content": "Geocaching always seemed like the uni-bomber’s wet dream. Wait for the target to get in range and then… Well you get it.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id":...
1,760,377,422.547485
https://hackaday.com/2010/06/20/hackaday-links-june-20-2010/
Hackaday Links: June 20, 2010
Mike Szczys
[ "Hackaday links" ]
[ "encoder", "ipad", "nas", "nixie", "sim" ]
Nixie Voltmeter Clock [Gmglickman] built a clock out of an old digital voltmeter . The Fluke 8300A came out in 1969 and is featured in their 60 years of innovation slideshow . What makes it a cool clock? The Voltmeter’s display is made up of Nixie tubes. Easy optical encoder wheel generator If you need to print out encoder wheels for your project there is an online tool you can use . It has almost any setting you would want to make a rotary encoder wheel.The black wheel can be used with old mouse parts and the checkered wheel with an optical sensor. [Thanks Bluewraith] New CD without the CD 1-bit Symphony is a newly released album. It come in a CD jewel case but there’s no CD included. That’s because they’ve built a circuit to playback their music via a headphone jack. We didn’t see any info on what microcontroller was used, but we love the cleanliness of the design. This apparently isn’t the first time the artist has released an album like this either.[Thanks Juan] Making a standard SIM work with the iPad [Tony Million] used a standard SIM to reduce the monthly cost of using broadband on the iPad. This is the exact opposite of using the iPad SIM in an iPhone and requires that you cut down your standard SIM quite a lot. [Tony] did this because he imported his iPad to the UK from the United States and using AT&T wasn’t an option for him. [Thanks David] 16TB NAS is a thing of beauty The Black Dwarf is a sixteen terabyte network attached storage device that looks more like a display counter for high-end hard drives. We’d usually think of this as a closet or basement dweller, but an item this gorgeously crafted deserves a place of honor in your home or office. Documenting the entire process was as complex as the build itself. We like seeing the time-lapse version . [Thanks Howard via Engadget ]
31
31
[ { "comment_id": "151621", "author": "biozz", "timestamp": "2010-06-20T13:23:26", "content": "FINALLY an encoder generator … no more hours in photoshop with the line tool and a calculator!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151623", "author": "G...
1,760,377,422.616156
https://hackaday.com/2010/06/19/building-a-supermacro-lens/
Building A SuperMacro Lens
Mike Szczys
[ "digital cameras hacks" ]
[ "canon", "ef-s", "lens", "macro" ]
[youtube=http://www.youtube.com/watch?v=KW0cFk9d-P0] [Lozzless] has a steady hand and plenty of confidence in his hacking skills. The video above is worth watching for the full eight minutes. In it you’ll see him convert a lens into what he calls a SuperMacro lens with a working aperture. The process involves fashioning a connector ring from a lens cap, modifying an Electro-focus lens mount , and assembling the parts to do his bidding. We don’t have the photography background to fully understand what he’s doing here, but we can appreciate the process, and the results are shown at the end of the clip. [Thanks TommyC]
51
50
[ { "comment_id": "151478", "author": "darkore", "timestamp": "2010-06-19T18:38:18", "content": "epic win.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151482", "author": "The Steven", "timestamp": "2010-06-19T18:52:26", "content": "Not bad at all…...
1,760,377,424.869204
https://hackaday.com/2010/06/19/coachella-lamp/
Coachella Lamp
Mike Szczys
[ "Misc Hacks" ]
[ "decatron", "nixie", "ultraviolet", "uv" ]
This little art piece might be just the thing to add that mad scientist look to your room. It’s called the Coachella lamp and it makes use of several throwback display devices. At the top an Argon discharge lamp puts out ultraviolet light. Protruding from each of the four sides you can see a set of decatrons. There’s also four Nixie tube bar graphs standing tall from each corner of the base. The final touch is the colored glow in the center which is provided by LEDs. We’ve embedded some video of the device after the break. The lamp is powered by a wall outlet and controlled with an Arduino. We’ve seen deactrons used as timing devices and would love to see some clock functionality added to the lamp. Trying to decipher the time from the different Nixie displays would put this up there with some of those other hard to read timepieces . [youtube=http://www.youtube.com/watch?v=7eOBzvyP8hw] [Thanks Brian]
25
25
[ { "comment_id": "151462", "author": "Jimmy Dickshins", "timestamp": "2010-06-19T17:10:42", "content": "Ancient glow tech + good design FTW", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151469", "author": "Osgeld", "timestamp": "2010-06-19T17:43:53", ...
1,760,377,424.687103
https://hackaday.com/2010/06/19/arc-reactor-replica/
Arc Reactor Replica
Mike Szczys
[ "LED Hacks" ]
[ "arc reactor", "iron man" ]
This Arc Reactor is a great re-creation of the fictional source of Iron Man’s power. It’s really just a holder for a bunch of LED’s, but it exhibits some fine craftsmanship which we enjoy in any project. This rendition is much more true to the movie than the last look-a-like we saw . These might end up being for sale (the webpage narrative is kind of weird) but you really shouldn’t be wearing this kind of thing around unless you made it yourself, or if you can add it to some kind of Iron Man simulator . [Thanks Cr8vie]
17
17
[ { "comment_id": "151446", "author": "Ryan", "timestamp": "2010-06-19T15:51:13", "content": "… I hate to be the first one to point out that this isn’t really a hack and that it would probably disappoint anyone who isn’t a fan of Iron Man…", "parent_id": null, "depth": 1, "replies": [] }...
1,760,377,424.274444
https://hackaday.com/2010/06/18/nerf-sentry-turret/
Nerf Sentry Turret
Mike Szczys
[ "Toy Hacks" ]
[ "gun", "motion", "nerf", "netbook", "sentry", "webcam" ]
https://hackaday.com/wp-…012618.jpg?w=470
With exams behind him [Adam Greig] had time to make a Nerf sentry gun . It’s actually quite easy to pull everything together. He’s got a netbook running Motion , an open source motion sensing program for use with a webcam. When movement is detected an Arduino, connected via a USB cable, actuates a servo to pull the trigger of the gun. The turret itself has seen a battery upgrade that increases the firing speed. It’s fun to see hardware prototyping done with a few pencils and a fist full of cable ties. Check it out after the break. This particular toy, the Nerf N-Strike Vulcan, has become quite a popular starting point for turrent projects. We’ve seen one that uses a motorized base , and another that was part of a final project at Cornell . [youtube=http://www.youtube.com/watch?v=wrWUhVeEcHk] [youtube=http://www.youtube.com/watch?v=-FBXKrU1Jec]
15
15
[ { "comment_id": "151329", "author": "victor", "timestamp": "2010-06-18T19:26:03", "content": "kind of like the [b]turrent[/b] i made", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151336", "author": "Mikey", "timestamp": "2010-06-18T20:20:01", "con...
1,760,377,424.625116
https://hackaday.com/2010/06/18/candle-stop-motion-hows-it-done/
Candle Stop Motion: How’s It Done?
Mike Szczys
[ "HackIt" ]
[ "candles", "gimp", "pong", "real or fake", "stop motion", "tea" ]
[Ollie] tipped us off about a stop motion video that uses a grid of tea candles to animate some classically pixellated game graphics. The image above is obviously a game of pong in progress. It’s interesting to watch but for us the fun is trying to decide how it’s done. Click through the break to see the video and discuss the methodology. [youtube=http://www.youtube.com/watch?v=EG127HdhWZQ] Perhaps the most obvious method used here is plain old stop motion animation. You light the candles, take a picture, snuff the ones you don’t need and light new ones, and repeat. There’s also the thought that the creator let the video roll, walked through his planned frames, then edited out the filler video after the fact. To us, one thing is missing. Whenever we put out a tea candle that’s been burning for some time it tends to let off a rather vigorous column of smoke. We don’t see that in the video. Our thought is that you take a picture of all the candles before they’re lit. You then take several shots of all the candles lit. The multiple shots are so that the video shows flickering flames. From there an image processing program can be used along with a layer mask to digitally stuff the candles that you don’t need for each frame. Below is our attempt at this using The Gimp . But we want to know how you would have done it so leave us a comment. [via College Humor ]
55
50
[ { "comment_id": "151271", "author": "DeadlyFoez", "timestamp": "2010-06-18T17:08:03", "content": "Cool and all, but far from any kind of a hack.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "151272", "author": "Johnson", "timestamp": "2010-06-18T17:12...
1,760,377,424.362748
https://hackaday.com/2010/06/17/no-nonsense-mbed-development-demo/
No Nonsense Mbed Development Demo
Mike Szczys
[ "Misc Hacks" ]
[ "libraries", "mbed", "rfid", "twitter" ]
This tweeting RFID reader is a great working example for the mbed. When an RFID tag is read it is matched with the name of the owner and a Twitter message is sent out. This is very similar to the RFID cat tracker that used an Arduino. The code is short and simple due to the use of available mbed libraries. The hardware needs just two extra modules, an RFID reader and an Ethernet socket. If you’re trying to decide if you can make the jump over to ARM development this certainly presents an easy learning curve and an opportunity to get comfortable with the code and the libraries before you make a purchase. It’s also a great set of test code to start with if you have an mbed and the two supplementary modules on hand. The quick video clip after the break will walk you through the components and the code. [youtube=http://www.youtube.com/watch?v=CQm2B6BqU1I]
6
6
[ { "comment_id": "150991", "author": "Scott", "timestamp": "2010-06-17T14:20:49", "content": "Very interesting! Didn’t realize the mbed was quite this powerful, might have to look into picking one up this weekend.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "...
1,760,377,424.578142
https://hackaday.com/2010/06/16/adjustable-tesla-coil-build/
Adjustable Tesla Coil Build
Mike Szczys
[ "classic hacks" ]
[ "coil", "sparks", "tesla", "tunable" ]
This coil has no trouble shooting sparks across four meters of empty air. [Finn Hammer] has been putting in some long hours on this labor of love, and we put in some time reading through his progress thread . He started down this path about a year ago and every step of the way he produces beautiful work. We enjoy seeing his prototyping techniques, moving from concept to hand drawing to CAD diagram before starting the physical build. Check out the demo video after the break and as you read through his thread look for the green arrows that lead to other videos and resources. 4-meter sparks [youtube=http://www.youtube.com/watch?v=l-FAdM_5E-s] How the coil is tuned during use [youtube=http://www.youtube.com/watch?v=NMbbBxiDozg] Demonstration of real-time coil tuning [youtube=http://www.youtube.com/watch?v=71hpP56JwGg] [Thanks Bill]
35
35
[ { "comment_id": "150738", "author": "HP", "timestamp": "2010-06-16T19:06:23", "content": "Nice job!Are we going to see it playing music soon?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150741", "author": "Anon", "timestamp": "2010-06-16T19:24:30", ...
1,760,377,424.537626
https://hackaday.com/2010/06/16/most-useless-machine-loses-carbon-footprint/
Most Useless Machine Loses Carbon Footprint
Mike Szczys
[ "green hacks", "Misc Hacks" ]
[ "clock", "gears", "useless machine", "wood" ]
[youtube=http://www.youtube.com/watch?v=lxyQ3PFbK9Y] [Clayton Boyer] took the electricity out of the useless machine, making one that runs like a clock . To this point, we’ve always seen these useless machine use electric motors . [Clayton’s] clever design uses a wind-up spring and a series of wooden gears to bring the fun, making it a great companion for the binary adder you built. The video above shows the inner workings and the design plans are for sale. We’d love to print out the parts or perhaps just laser-cut them from wood like the legs of this spider bot . [Thanks llwynog]
23
23
[ { "comment_id": "150721", "author": "woutervddn", "timestamp": "2010-06-16T18:17:53", "content": "sweet! xDit’s getting hard to decide which one to build, the electric one or this one", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150731", "author": "Steph...
1,760,377,424.740209
https://hackaday.com/2010/06/16/joojoo-alternative-os-installations/
Joojoo Alternative OS Installations
Mike Szczys
[ "Multitouch Hacks" ]
[ "android", "jolicloud", "joojoo", "OsX", "windows 7" ]
Joojoo hacks are starting to trickle in as non-fanboys get their hands on the iPad alternative. The custom OS forum for the device tells the tale of successful installs of Windows 7 , OSX , Android , and Jolicloud . So far the only one to have a how-to is Windows 7, but we’re sure that will change quickly. When Microsoft’s offering is installed on the device it get about four hours of use per charge which is fairly decent. We’d love to get our hands on one and try it out with Android but the $499 price tag is still a hurdle for us. We’re not saying it’s over priced, as it comes with a lot under the hood . Even at that price we think it blows the aPad out of the water. [Thanks Andy]
13
13
[ { "comment_id": "150716", "author": "James Glanville", "timestamp": "2010-06-16T18:02:19", "content": "It’s a great shame it only has 4gb storage, and no sd card slot. This is about the only thing stopping me from buying one now – once there’s an os on there, there’d barely be space for a single fil...
1,760,377,424.787681
https://hackaday.com/2010/06/16/careful-that-gas-pedal-is-a-nexus-one/
Careful! That Gas Pedal Is A Nexus One
Mike Szczys
[ "Android Hacks", "Cellphone Hacks" ]
[ "adobe", "air", "android", "nexus one", "phidgets", "slot car" ]
Indeed, the gizmo above is meant to be used as a gas pedal. [Grant Skinner] came up with the idea to control slot cars using an Android phone as a gas pedal. He coded the software for the handset and a computer using Adobe AIR. Once connected, the computer is sent the accelerometer data from the phone, relaying the speed control to the slot car track with the aid of a Phidgets motor controller. See it ‘go’ after the break. We’ve seen the Phidgets board used in several projects like the augmented vending machine and the plotter white board . What we haven’t seen is hacks that make use of AIR, a framework we looked at two years ago. If you’ve got hacks that make use of AIR we want to hear about them . [vimeo=http://vimeo.com/12574396] [Thanks Mike]
13
13
[ { "comment_id": "150683", "author": "alex", "timestamp": "2010-06-16T16:04:05", "content": "I don’t see the video :(", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150686", "author": "Mike Szczys", "timestamp": "2010-06-16T16:13:13", "content": "@a...
1,760,377,424.20991
https://hackaday.com/2010/06/16/win-at-hangman-gain-entry/
Win At Hangman, Gain Entry
Caleb Kraft
[ "Arduino Hacks", "Security Hacks" ]
[ "game", "lock", "secure" ]
Do not put anything in this box that you will need in a rush. You’ll have to successfully guess the word in a game of hangman to gain entry . He’s using an Atmega328 as the brains of this project with a rotary dial and an LCD for input and display. If you win, the box is unlocked and you can open it up to get whatever is inside. There are links to various tutorials along the way to help with each step, including the Arduino source code he used to build it. We think he should bump it up a notch and have the box destroy the contents if you fail. Sounds like fun, right?
16
16
[ { "comment_id": "150668", "author": "Ryan Leach", "timestamp": "2010-06-16T15:18:44", "content": "hangman on a lcd nice!but doing it to open a box?think you should have stopped at making a hand held hangman game.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "...
1,760,377,424.923868
https://hackaday.com/2010/06/16/simple-shutter-speed-tester/
Simple Shutter Speed Tester
Caleb Kraft
[ "digital cameras hacks", "Tool Hacks" ]
[ "shutter", "SLR" ]
[Pablo] likes to buy and repair broken cameras. When he was in need of a way to test the shutter speed, his brother came up with a great idea . Harvest the photo transistor from an old ball mouse. It turned out to be just as easy as it sounds. He plugs the circuit into some sound editing software to get the signal. We think this is pretty slick. [via Makezine ]
23
23
[ { "comment_id": "150655", "author": "Tom", "timestamp": "2010-06-16T14:36:12", "content": "Are there still people using non-digital camera’s?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150660", "author": "Tom", "timestamp": "2010-06-16T14:56:00", ...
1,760,377,425.206266
https://hackaday.com/2010/06/15/android-meets-arduino/
Android Meets Arduino
Caleb Kraft
[ "Android Hacks", "Arduino Hacks" ]
[ "android", "arduino" ]
This new toolkit, called “Android” meets Arduino , allows you to connect an Arduino to your device and communicate back and forth. You could trigger external events at the Arduino end when an event happens on your phone, or even trigger things on your phone side when something happens at the Arduino.  We can’t wait to see the stuff people come up with beyond simple notifiers. [via littlebirdceo ]
17
17
[ { "comment_id": "150234", "author": "Brad Hein", "timestamp": "2010-06-15T13:30:49", "content": "Oh now this is cool.I’ve been wanting to use an Arduino to connect to the car’s Single-wire CAN network. There are no bluetooth tools that do this to date, and an Arduino seems like a perfect option!", ...
1,760,377,425.450759
https://hackaday.com/2010/06/14/unbricking-with-the-help-of-arduino/
Unbricking With The Help Of Arduino
Mike Szczys
[ "Arduino Hacks" ]
[ "bios", "eee pc", "eeprom", "flash" ]
A This bricked Eee PC came to [Janzo] for about $50. Everything was fine with it, except for the failed bios update that rendered it useless to the last owner. [Janzo] set to work with an Arduino on a quest to repair the bios . He looked up the datasheet for the EEPROM that stores the bios and did some delicate soldering to gain access to the power and data pins on the device. A bit of trial and error and he was able to read the registers. Some comparisons between the output file and the official Eee PC bios file in a HEX editor confirmed that the first 80 bytes were fine but after that something went wrong. After coding a quick Python script [Janzo] reflashed the chip and had the computer up and running again. We’ve seen Eee PC bios recovery before. This is a very simple method because it makes use of the simplicity we find in the Arduino. Nice job.
34
34
[ { "comment_id": "150056", "author": "alecain", "timestamp": "2010-06-14T22:51:41", "content": "That arduino is totally overkill. He really ought to have whipped up a board in eagle, sent it to china to be etched, placed smt parts, done a second board rev and then flashed the chip.Instead he did some...
1,760,377,425.277143
https://hackaday.com/2010/06/14/update-flash_destroyer-final-destroys-eeprom/
Update: Flash_Destroyer Final Destroys EEPROM
Mike Szczys
[ "HackIt" ]
[ "corrupt", "destroyer", "eeprom", "flash" ]
The Flash_Destroyer finally succeeded in rewriting that EEPROM until its demise. When we originally looked at the device it had already recorded 2.5 million successful rewrites. The first appearance of corrupt data occurred at 11,494,069 but that doesn’t tell the whole story. The chip kept working for another 200,000 rewrites before finally showing repeated data corruption. We do find the writeup pretty interesting. There’s one thing that we can’t stop coming back to though. In the discussion of our original article [Tiago] pointed out that long-term data retention isn’t being tested here. If the abuse of that EEPROM had ended after say five million rewrites, would it have been able to hold the data long-term without corruption? Let us know what you think in the comments. [Thanks Drone377]
17
16
[ { "comment_id": "150033", "author": "The ThunderBird", "timestamp": "2010-06-14T20:49:54", "content": "As a semi-layman, I think it would have retained without much additional corruption. Once power is removed from the chip, only entropy would play a part, which wouldn’t put undue stress on the cell...
1,760,377,425.331476
https://hackaday.com/2010/06/14/monster-chess/
Monster Chess
Jakob Griffith
[ "Toy Hacks" ]
[ "chess", "giant", "labview", "lego", "monster", "pc", "set" ]
Over 100,000 Lego pieces, 4 people a year to create, and a 12 foot by 12 foot chess board make this the largest most awesome Lego hack we’ve ever seen. Take that Lego Printer . For a mere $30,000 you too can have such a setup. Not a lot of information is out yet, but we do know all the pieces are remote controlled via a PC with LabVIEW and a total of 38 NXT controllers are used. Oh, and of course you can see it live at the 2010 Brickworld . Check out a video of a replayed game after the jump. [via Geekologie ] [youtube http://www.youtube.com/watch?v=MAwwKEXn6Mk&feature=player_embedded%5D
24
24
[ { "comment_id": "150015", "author": "JMLB", "timestamp": "2010-06-14T19:32:20", "content": "I wonder how Castling works.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150018", "author": "Decepticon", "timestamp": "2010-06-14T19:47:15", "content": ...
1,760,377,425.393839
https://hackaday.com/2010/06/14/distance-measurement-input-device/
Distance Measurement Input Device
Mike Szczys
[ "home entertainment hacks" ]
[]
[Larry] put a different spin on a television remote control . He used an Arduino and an IR receiver to learn the codes from the factory remote. Now that he can use an IR LED to playback these signals he worked on an alternative to pressing buttons as the input. The ultrasonic range finder seen above allows him to wave his hand in front of the device to change channels and alter the volume levels. Check it out after the break. There are many other ways that gestures could be used with this system, including a laser based input method. We’d like to see [Larry’s] system incorporated into a coffee table of some kind , as long as there was an opening for the range finder to work. [flickr video=http://www.flickr.com/photos/peplop/4697311112/]
8
8
[ { "comment_id": "150008", "author": "zerth", "timestamp": "2010-06-14T18:53:41", "content": "For years radios had been operated by means of pressing buttons and turning dials; then as the technology became more sophisticated the controls were made touch-sensitive – you merely had to brush the panels...
1,760,377,425.691512
https://hackaday.com/2010/06/14/radio-walkman-megaphone-hybrid/
Radio-Walkman-megaphone Hybrid
Mike Szczys
[ "Musical Hacks" ]
[ "magnetic", "megaphone", "radio", "tape", "Walkman" ]
[Erich] rethought the use of a megaphone and ended up with this Mega-Tape-O-Phone . His first move was to ditch the megaphone’s amplifying circuitry in order to add his own based on an LM386 chip. From there a radio receiver joined the party followed by the guts of a tape player. He relocated the head of the tape deck to the end of a flexible cable and coated the outside of the megaphone bell with magnetic tape. Now he’s surfing the airwaves and scratching away happily. The use of the tape head has been seen here before, but it was never in a mobile package like this is. Join us after the break for some video of this in action. [youtube=http://www.youtube.com/watch?v=zlaqpdOY4Xc]
10
10
[ { "comment_id": "149990", "author": "Mikey", "timestamp": "2010-06-14T17:14:05", "content": "Neato.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149993", "author": "poisomike", "timestamp": "2010-06-14T17:27:51", "content": "I got nothing…this is...
1,760,377,425.498639
https://hackaday.com/2010/06/14/ground-your-car-to-make-it-go/
Ground Your Car To Make It Go
Caleb Kraft
[ "Security Hacks", "Transportation Hacks" ]
[ "car", "immobilizer", "touch" ]
[youtube=http://www.youtube.com/watch?v=FFb5_mKfnR8] This security system called G-spot requires that you touch a special place on the car prior to attempting to start it. This is pretty slick as it could be completely un-obvious and doesn’t require any special fobs or minor surgery . With the right placement, no one would ever notice that you had touched it. [via HackedGadgets ]
27
26
[ { "comment_id": "149971", "author": "UltraMagnus", "timestamp": "2010-06-14T15:51:26", "content": "did anyone else get a weird image for this in their e-mail subscription? It had an image of someone using one of those “cold heat” soldering irons for me.", "parent_id": null, "depth": 1, ...
1,760,377,425.841209
https://hackaday.com/2010/06/16/using-ipod-docks-with-droid-via-an-adapter/
Using IPod Docks With Droid Via An Adapter
Mike Szczys
[ "Android Hacks", "ipod hacks" ]
[ "adapter", "connector", "dock", "droid" ]
Standard connectors in portable devices would be great for the consumer, but then you wouldn’t purchase separate peripherals for ever portable you buy (lining the pockets of the companies licensing said peripherals). [Thijs] isn’t taking it lying down any longer. Realizing that the shape of the connector is one of the only things standing in the way, he built an adapter to use iPod docks with Droid . The hardware consists of a USB connector, audio jack, iPod connector, and a magnet. After working out the wiring it was just a matter of building a chassis using polymorph material. As you can see above, his expensive dock has no problem playing nicely with Droid because of his handy work.
14
14
[ { "comment_id": "150681", "author": "CircuitMage", "timestamp": "2010-06-16T15:54:01", "content": "Was just thinking about this last week…Just the info I needed! Thanks. Maybe some day I will get around to doing something like that…", "parent_id": null, "depth": 1, "replies": [] }, {...
1,760,377,425.546072
https://hackaday.com/2010/06/15/real-stargate-built-in-backyard/
(Real) Stargate Built In Backyard
Jakob Griffith
[ "Misc Hacks" ]
[ "carve", "dial", "foam", "portal", "PVC", "stargate", "wood", "wormhole" ]
PVC, wood, and some creativity bring this Stargate duplicate to life. [Mango] and his father started with AutoCad drawings taped together, and ended with the Stargate you see before you. Sure it’s not 22 foot in diameter and not made of Naquadah , but its inner ring rotates and dials like the real thing and it has all 39 symbols – hand carved. Catch a fun and entertaining video with the Stargate after the break. [via SciFiWire ] [youtube http://www.youtube.com/watch?v=2y50rdtZbGE%5D
56
50
[ { "comment_id": "150386", "author": "chris", "timestamp": "2010-06-15T21:16:44", "content": "oh, oh, can I be first to say NOT A HACK", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150388", "author": "Mr_Bishop", "timestamp": "2010-06-15T21:19:51", ...
1,760,377,425.782145
https://hackaday.com/2010/06/15/great-ball-contraption/
Great Ball Contraption
Mike Szczys
[ "Toy Hacks" ]
[ "lego", "mindstorm", "nxt", "rube goldberg", "useless" ]
[youtube=http://www.youtube.com/watch?v=B1A7VpQ5paU] The idea of the Great Ball Contraption is to take modules from many builders and combine them into one large machine. The modules need to find some way of moving LEGO soccer balls and basketballs from an input point to an exit are that passes them onto the next module. Some of them sort the balls, but in the end the eight-and-a-half-minute video above shows the orbs going around and around. That’s just fine with us, it’s no secret that we love machines that are overly complicated and may be completely useless .
18
17
[ { "comment_id": "150343", "author": "koen", "timestamp": "2010-06-15T19:33:22", "content": "wow!must be fun to finally get all these lego mindstorm things working together that is after a months of trial and error.Also is this a sponsored project? I would not like to put up the bill for al the lego ...
1,760,377,425.925334
https://hackaday.com/2010/06/15/preparing-your-pcb-design-for-manufacture/
Preparing Your PCB Design For Manufacture
Mike Szczys
[ "Misc Hacks" ]
[ "advanced circuits", "batchpcb", "eagle", "pcb" ]
[Colin] has cut his teeth with about fifteen PCB orders. He wrote a tutorial describing the process and sharing his tips on avoiding common problems. You may remember our own How-To prepare designs for manufacture early last year. In that post, [Ian] shared his veteran knowledge by outlining BatchPCB’s board design process. This time, [Colin] is using Advanced Circuits in Colorado as a board house, giving us more insight on how the different companies work. No matter who you choose for manufacturing, make sure you really understand how to properly format and troubleshoot your designs. It’ll end up saving you a lot of time and money.
31
31
[ { "comment_id": "150328", "author": "Scuzz", "timestamp": "2010-06-15T18:45:03", "content": "Good tutorial, though funny to think of cutting your teeth on fifteen orders though! That’s the number of PCBs I’ve ordered over the course of the past year, but good stuff anyway.The only thing I wish you ...
1,760,377,426.198851
https://hackaday.com/2010/06/15/recharging-ac-with-propane/
Recharging AC With Propane
Mike Szczys
[ "home hacks" ]
[ "air conditioner", "propane", "r22", "refrigerant" ]
[youtube=http://www.youtube.com/watch?v=v2vN_mxW4Bc] As the summer heats up an air conditioning system is a necessity in many climates. [Grayson’s] system suffered some damage over the winter that caused it to vent its refrigerant, avoiding an explosive situation. Before he can chill out inside he’ll need to recharge it and he’s chosen to use propane in his cooling system . According to our friend Google this is not his original idea, but has been done many times before. [Grayson] makes the point that although propane is flammable it’s not necessarily any more dangerous in a fire than Chlorodiflouromethane, or R22, which is the nasty little gas that fled his system for its new home in the upper atmosphere. The video above includes a brief explanation of recharging the system and the tools needed. We’d need to mill this over for quite a while before working up the gumption to give it a try. For now we’ll stick to [Grayson’s] more pedestrian hacks like making some servo motors sing or easing our yard work woes .
302
50
[ { "comment_id": "150292", "author": "cliff", "timestamp": "2010-06-15T17:07:20", "content": "lots of industrial places use propane as a refrigerant, you don’t need special licenses to work on it and its waaaaaay cheaper.", "parent_id": null, "depth": 1, "replies": [ { "comm...
1,760,377,426.437612
https://hackaday.com/2010/06/15/ipad-hacked-to-include-a-verizon-mifi/
IPad Hacked To Include A Verizon MiFi
Caleb Kraft
[ "iphone hacks", "Mac Hacks" ]
[ "apple", "ipad", "iphone", "mac", "mifi" ]
Finally, some hardware hacking on an iPad.  Finding the 3G connection that came with the iPad lacking, this industrious hacker yanked it out and replaced it with the guts from a MiFi . At the cost of his GPS, he’s gained a better connection and is now a wifi hotspot. It wasn’t horribly complex, but he did have to do a tiny bit more than just plug and play. [thanks Smilr]
25
24
[ { "comment_id": "150266", "author": "Jeff", "timestamp": "2010-06-15T15:40:07", "content": "This is crazy cool!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "150272", "author": "turbodude", "timestamp": "2010-06-15T15:53:25", "content": "Thank you...
1,760,377,426.259093
https://hackaday.com/2010/06/15/vuvuzela-removal/
Vuvuzela Removal
Caleb Kraft
[ "digital audio hacks", "home entertainment hacks" ]
[ "football", "futebal", "soccer", "vuvuzela" ]
We’re hearing complaints everywhere about the noisemakers called Vuvuzelas during the world cup. Whether you are a fan of the sport or not, you can appreciate when a fellow hacker gets annoyed and start hacking. [Tube] has created a software filter that manages to remove the sound of the Vuvuzela from the videos . He shares the process of how it was all created, using Logic Express and a Mac mini ( Google translation ). Maybe this will also provide some relief from the constant stream of Vuvuzela whining as well. [via DVice ]
41
41
[ { "comment_id": "150242", "author": "Brad Hein", "timestamp": "2010-06-15T14:18:35", "content": "Can you please make one that filters out bass heads driving down the street or stopped at a light with their music excessively loud? ;-)", "parent_id": null, "depth": 1, "replies": [] }, ...
1,760,377,426.132008
https://hackaday.com/2010/06/14/electro-luminescent-fun-with-jeri-ellsworth/
Electro Luminescent Fun With Jeri Ellsworth
Caleb Kraft
[ "Tool Hacks" ]
[ "el", "electro luminescent", "jeri ellsworth" ]
[youtube=http://www.youtube.com/watch?v=ZuDZnJX5kqw] [Jeri] got her hands on some of the DuPont Luxprint EL ink and had some fun conducting experiments. She tried different materials for the base and the display itself.  Not only does she just play with materials, she also tears apart a VFD and an LCD to see if she could use them for parts. The LCD turned out to be the most successful. We saw this stuff show up at the Bay Area Maker Faire and we’re excited to see it become more accessible. [via Makezine ]
25
25
[ { "comment_id": "149954", "author": "Seth", "timestamp": "2010-06-14T14:26:32", "content": "Could this possibly be stimulated by a taser/stun gun? It could make for a very neat business card for a retailer of those devices.", "parent_id": null, "depth": 1, "replies": [] }, { "com...
1,760,377,426.639016
https://hackaday.com/2010/06/13/worlds-slowest-porsche-still-faster-than-my-car/
World’s Slowest Porsche, Still Faster Than My Car
Jakob Griffith
[ "Transportation Hacks" ]
[ "aluminum", "bicycle", "car", "gold foil tape", "plastic", "porsche" ]
Well, maybe the title is not so true. This “Porsche” GT3 ‘s construction is a bit unorthodox , the chassis looks to be aluminum tubing, with bicycle tires and other man-powered parts for propulsion. The body is entirely plastic and tape, yeah…gold…foil…tape. Hey, when you really really want to turn someones head . Regardless, the car even comes complete with working lights, horn, doors, trunk, and lexan windows. Sure it will never go 0 to 60 ( yet ), but the mileage is amazing! Follow an amusing video of it after the rift. [via OMGsoysauce ] [youtube http://www.youtube.com/watch?v=GaQB_tgS7f0&feature=player_embedded%5D
51
50
[ { "comment_id": "149822", "author": "Ho0d0o/Heatgap", "timestamp": "2010-06-13T23:23:31", "content": "Awesome! The real life duct tape racer! Well done! looks fun as hell to pedal that bastard around! What a sweaty endeavor!", "parent_id": null, "depth": 1, "replies": [] }, { "co...
1,760,377,426.523966
https://hackaday.com/2010/06/13/toddler-android/
Toddler Android
Mike Szczys
[ "Robots Hacks" ]
[ "android", "robot", "toddler" ]
We came across a couple of videos of this toddler android . It sits up, rolls over, and responds to humans around it using visual, audio, and sensor inputs. After the break you will see that the movements are quite like that of a young child. The giveaway is the weight of the robot which is evident when its handlers trying to help it get untangled from that blanket. It seems to respond to individuals around with a smile and a twinkle of its… errr… camera eye. We wonder if it would find delight in knocking down some dominoes . Body movements [youtube=http://www.youtube.com/watch?v=UQjtEMokT_Q] Facial response [youtube=http://www.youtube.com/watch?v=8Mco57nNShA]
23
23
[ { "comment_id": "149793", "author": "baobrien", "timestamp": "2010-06-13T21:01:55", "content": "That’s creepy.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149795", "author": "zigzagjoe", "timestamp": "2010-06-13T21:07:43", "content": "No. I’m so...
1,760,377,426.582344
https://hackaday.com/2010/06/13/gaming-system-for-less-than-three-bucks/
Gaming System For Less Than Three Bucks
Mike Szczys
[ "classic hacks" ]
[ "arm", "cortex", "m0", "video game" ]
[youtube=http://www.youtube.com/watch?v=r-Mdt6uzmOg] [Rossum’s] latest project just hit and as usual, he doesn’t disappoint. Using an ARM cortex M0 he built a gaming system for less than $3 in parts. The M0 is a bit underpowered for this but at $1 it can’t be beat in price. He worked some video generation voodoo to get the signal he wanted but also mentions that upgrading to a bit more expensive chip like the Cortex M3 would solve this problem. The other part of the gaming system is an analog stick (again for about $1) that is the only input for the system. Can’t say that you remember hearing about [Rossum] before? Go back and check out his Wikipedia reader , AVR media player , and AVR iPod touch killer .
24
24
[ { "comment_id": "149764", "author": "Tachikoma", "timestamp": "2010-06-13T18:42:16", "content": "pow(awesomeness, 32)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149766", "author": "zhanx", "timestamp": "2010-06-13T18:48:28", "content": "Now i l...
1,760,377,426.920545
https://hackaday.com/2010/06/13/hackaday-links-june-13-2010/
Hackaday Links: June 13, 2010
Mike Szczys
[ "Hackaday links" ]
[ "blu-ray", "laser", "monovelo", "monowheel", "resistor", "stained glass" ]
Painting with light [Jo0ngle] wanted a fun toy and an easy conversation piece. He painted a square on the back of his door with some glow-in-the-dark paint. Now he can draw on it using a blu-ray laser or a UV flashlight. Either way, the effect is quite pleasing. [Thanks Justin] Resistor decoder rings This resistor reference card allows you to spin a wheel and dial in the resistor color code for easy reading. We know, you have the simple act of reading resistor code down cold by now. This is still a fun idea that you might use if you’re ever helping someone get into electronics. [Thanks Osgeld] Resistor bending template Speaking of resistors, [Jerome] helped us out by designing a resistor bending template . He’s actually marketing himself at the same time. His bending template is folded from one of his business cards, which he came up with after being inspired by some of the unique business cards we’ve covered in the past. Fake stained glass using old PCBs [Agg] floated some old PCBs to his friend [Dan] the mason. [Dan] proceeded to turn out an amazing looking stained glass window unit using the colorful leftovers. The picture above doesn’t do it justice, you have to click through to see the real art . Monovelo monowheel [Ernst] asked if we’d heard of the Monovelo monowheel. Well we hadn’t. It’s a human-powered vehicle where you sit inside of one large wheel. We don’t see ourselves building one or riding one, but we enjoyed watching someone else do so. We’d like to catch somebody commuting to work with one of these. Seeing this in the bike lane will brighten up anyone’s day.
23
23
[ { "comment_id": "149725", "author": "SlurmMcKenzie", "timestamp": "2010-06-13T14:25:02", "content": "mhh, nobody complaining about that blu-ray laser pointer ? ;-)saftey glasses, protect the eyes, reflections etc ?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id":...
1,760,377,426.812276
https://hackaday.com/2010/06/12/wireless-accelerometer-project/
Wireless Accelerometer Project
Jakob Griffith
[ "Wireless Hacks" ]
[ "accelerometer", "athlete", "coach", "pic", "wireless", "xbee" ]
[Jerome Demers] sent us his extremely detailed semester project. The two part system consists of PICs connected to XBee modules and accelerometers. By using the device a coach can monitor an athlete and correct their minute mistakes. Did we mention [Jerome] was very detailed? He also goes into the particulars of designing the circuit, using solder paste and baking, designing and laser cutting a case , and even some fun stories . Well worth the read if you have the time.
15
15
[ { "comment_id": "149573", "author": "Heliostat hippy", "timestamp": "2010-06-12T20:56:25", "content": "Did we not have the wiimote?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149584", "author": "Elias", "timestamp": "2010-06-12T21:17:25", "cont...
1,760,377,426.863893
https://hackaday.com/2010/06/12/lego-hand-controller/
LEGO Hand Controller
Mike Szczys
[ "Robots Hacks" ]
[ "claw", "lego", "light sensor" ]
[David Hyman] built this device to control a LEGO claw. One one end of things is the part you wear, that measures movement of two fingers and your thumb. On the other end of things is a LEGO claw with three opposing digits. You move, it moves. The claw uses light sensors and a gradient strip for position feedback. There is also an up-down wrist action that uses a touch sensor as the input. This is impressive enough to give the sniper rifle a run for its money. [via Make ]
12
12
[ { "comment_id": "149527", "author": "spiritplumber", "timestamp": "2010-06-12T16:09:05", "content": "That is very awesome.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149539", "author": "mrgoogfan", "timestamp": "2010-06-12T17:50:03", "content":...
1,760,377,426.97277
https://hackaday.com/2010/06/10/dingoo-a320-ram-upgrade/
Dingoo A320 RAM Upgrade
Mike Szczys
[ "handhelds hacks" ]
[ "a320", "a330", "dingoo", "ram" ]
[Stephanie] beefed up the hardware on her Dingoo A320 . She enjoyed the features that the A320 handheld gaming system offered, but wanted the 64mb of RAM available in its bigger brother, the A330. A comparison of the two led her to believe a swap might be possible and after sourcing a pair of replacement chips for $12.50 she took the plunge. Once the solder had cooled it was just a matter of flashing some different firmware to take advantage of the upgrade. [Thanks Juan via Dingoonity ]
19
19
[ { "comment_id": "149080", "author": "anon", "timestamp": "2010-06-10T18:44:49", "content": "“64mb of RAM”Man do I love me some millibits.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149093", "author": "mess_maker", "timestamp": "2010-06-10T19:14:07"...
1,760,377,427.10162
https://hackaday.com/2010/06/10/making-liquid-nitrogen-at-home/
Making Liquid Nitrogen At Home
Mike Szczys
[ "classic hacks" ]
[ "electricity", "liquid nitrogen", "nitrogen" ]
https://hackaday.com/wp-…735136.jpg?w=470
If you’ve got some time to scour eBay and $500 sitting around you can build your own liquid nitrogen plant . [Ben Krasnow] figured it all out for you and estimates he can produce a liter of the stuff for around $1.15. The process depends on a membrane to separate nitrogen from the other materials in the air around us and a cryocooler to get the gas cold enough to condense into a liquid. Other than atmospheric air, you need to pump in electricity. About 9.6 kWh per liter… yikes! Is your human hair solar panel up to that? Anyway, once you’re up and running you can make yourself some ice cream or possibly save the world from oily destruction . [Thanks Chris]
28
28
[ { "comment_id": "149037", "author": "Nitori", "timestamp": "2010-06-10T17:15:51", "content": "I think I might try to build one of these even though I can get lN2 fairly cheap at the welding supply shop.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149039", ...
1,760,377,427.039887
https://hackaday.com/2010/06/10/dmx-keyboard-display/
DMX Keyboard Display
Mike Szczys
[ "digital audio hacks", "LED Hacks" ]
[ "dmx", "hair band", "midi", "rgb" ]
This keyboard display has an RGB LED for each key that is addressable through the common stage lighting protocol, DMX. The project video, seen after the break, does a good job of walking us through the concept. By using a MIDI to DMX converter box [John] can show MIDI signals coming from a keyboard on the appropriate key of the display. By further monkeying with the firmware in the converter box he shows a plasma effect on the whole keyboard, making the corresponding light for each pressed key pop out in bright white. Jump to about 3:45 to hear and see “Sweet Child o’ Mine”. This isn’t the first time [John’s] been caught with a slew of blinking lights. He helped create the giant LED Christmas tree that brightened up our holiday. [youtube=http://www.youtube.com/watch?v=CZvEqP5JSvA]
10
10
[ { "comment_id": "149061", "author": "Mikey", "timestamp": "2010-06-10T18:16:21", "content": "Quote: Jump to about 3:45 to hear and see “Sweet Child o’ Mine”.That was awesome. Why no video link in the article though?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id...
1,760,377,427.150931
https://hackaday.com/2010/06/10/rotary-display-uses-vcr-head-and-leds/
Rotary Display Uses VCR Head And LEDs
Mike Szczys
[ "LED Hacks" ]
[ "head", "POV", "rotary", "vcr" ]
[Daniel Daigle] is developing a rotary display that uses persistence of vision to graph data. The hardware he used includes a spinning head from a VCR, some LEDs, and a timing circuit to display 360 degrees of data. His timing input uses a waveform so this will work with any application where you can generate a PWM signal. Check out his videos after the break that demonstrate a graph with a single line and another with six display lines. Single line rotary display [youtube=http://www.youtube.com/watch?v=KN9VD8ya7_0] Six line rotary display [youtube=http://www.youtube.com/watch?v=X06lndAIj7A] [Thanks Tim]
12
12
[ { "comment_id": "149003", "author": "Jake Hildebrandt", "timestamp": "2010-06-10T15:50:34", "content": "Very slick! POV is so magical and cool…", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149004", "author": "Brennan", "timestamp": "2010-06-10T15:55...
1,760,377,427.26895
https://hackaday.com/2010/06/09/minihow-to-refill-your-dtg-inks/
(mini)How-To: Refill Your DTG Inks
Jakob Griffith
[ "Featured", "how-to" ]
[ "cartridge", "change", "dtg", "epson", "how-to", "ink", "printer", "refill", "sponge" ]
The number one and number two things asked after presentation of our DIYDTG were… “How does it hold up in the wash?” and… “How did you change out the inks?” While we’ve explained the first several times (regular ink washes out, DTG ink gets a little lighter but survives) we can hopefully answer the second with a tutorial. To change out or refill the Epson cartridges we used was relatively simple. You’ll need a few supplies. -Old/used (or new, but you would be wasting ink) Epson cartridge -DTG ink (we recommend DTGinks.com ) – SSC utility (this lets your trick the printer into thinking it has a fresh cartridge) -Windex (ammonia base won’t rust the print head) -Plastic syringe -Flat head screw driver -Hot glue -Electrical tape -Small cup -Rags (ink gets everywhere) -Resolve or other stain remover (to clean up said ink everywhere) -Time (a lot of it) -(Optional) sponge from other printers -(Optional) latex gloves -Original head waste collection piece from printer. The bottom item on the list is a small funnel and squeegee that were originally located just below the head when it is at ‘home’ position within your printer. Its job was to suck ink out of the head, cleaning it and priming it at the same time. Fair warning, your fingers will be black/stained without gloves. You’ll want to first take the flat head screwdriver and crack open the cartridge’s top. Make sure it stays intact, we will be reusing it and glueing it back on. From there, pull out the old sponge that resides in the cartridge. Pour some Windex in a cup and place in the cartridge and top. You can either soak the original sponge as well in the cup, or cut a new sponge. We don’t recommend kitchen sponges (too many large holes), but we found several clean sponges in old printer’s ‘ink recycle receptacle’ – for lack of a better term. Let it soak (we recommend overnight). I’ll take this moment to explain how to prime your head. You’ll want to make sure you put in some cartridge: ink, DTG ink, Windex, or other. Just don’t try to prime your head with air/no cartridge! Take your syringe, and push it onto the hose that is connected to the waste collection piece. You’ll position it below the head’s nozzles (seen in the picture below as dots), push it against the head with one hand. Using your other hand, pull out the syringe (creating a vacuum). You should get a nice thick stream of whatever cartridge you put in. If not, wiggle around the waste collection piece until a seal is formed. We pull out on average about 1ml of liquid to prime. (Optional) If you think your printer has a lot of clogged heads, you can take out the cartridge from the cup. Place it in your printer head, and fill it with Windex. Prime as explained above. Your heads should be clean and clear. Once your sponge has soaked (or you cut a new one), simply drop ink/DTG ink onto the end of the sponge that will be pushed into the cartridge first. We used about 10ml, do NOT fill your sponge completely. Stuff the soaked end first into the cartridge, pushing it down to the bottom, but make sure you don’t push too far, the top of the sponge has to touch the lid (why that’s important in a moment). You’ll notice that by squashing down the sponge into the cartridge, the extra previously unfilled area of the sponge gets soaked. Push on your lid, and hot glue around the edge, it must be air tight (but not so much so you can’t ever get the lid off again, we assume you’ll want to refill again). And place a small amount in any holes except the main center one. By having the lid done this way (with the sponge and glue) you’re creating an air tight seal that only lets out the correct amount of ink. If you cleaned out your head before with Windex (that optional stage), with no sponge and no lid as instructed, you may have noticed just how easily without this seal that fluid will just fall out of the head, you don’t want that. (Pictured below, ink dribbling out) Wrap a tight piece of electrical tape over the cartridge, covering and sealing the bottom hole completely. Only once around is needed, too many and the plastic spike may not be able to pierce the tape. Place the cartridge into the head, from here on out, until the cartridge is completely empty, do NOT remove it from the head. Prime your head. At this point if you put too much ink into the sponge you’ll see it fall out of the head (as mentioned above). Don’t worry, just leave it. Place a rag underneath and wait (once again, overnight is prefered). By morning you should be able to wipe away all the excess, prime it, and no ink will ‘just fall out’. We also added a small piece of rag to act as a squeegee to help clean the head when it returned to home position. You’re done! Do a lot of test printing, you’ll find that some of the first prints will be messy (it took us 10 full prints before we got it to be constant darkness).
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[ { "comment_id": "148802", "author": "Gregg", "timestamp": "2010-06-09T20:49:10", "content": "I’m guessing something like a CISS would also work well if you replace the inks?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "148813", "author": "zarcon6", "...
1,760,377,427.216723
https://hackaday.com/2010/06/09/building-a-glue-stick-flashlight/
Building A Glue Stick Flashlight
Mike Szczys
[ "classic hacks", "LED Hacks" ]
[ "boost", "converter", "flashlight", "inductor", "step-up" ]
Building an LED flashlight is simple, right? Take a battery, connect it to an LED by way of a resistor. Alright wise guy, now make one that steps up the voltage for multiple LEDs and don’t use a boost-converter IC to do so. [fede.tft] shares a flashlight built inside of a  used glue stick case . It’s the perfect size for one AA battery (we’re always on the lookout for good battery cases ), and a shape that we’re familiar with as a flashlight. The problem is that he wants two white LEDs but with just one AA cell he’s never going to have more that 1.5V available. He licked that problem, getting to 7.2V by designing his own step-up converter using one transistor, an inductor, and three passive components. To get the inductor he needs, a stock part is disassembled and rewound to suit. Maybe you just end up with a flashlight when all is said and done, but then again, the Sistine Chapel is just some paintings on a ceiling.
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[ { "comment_id": "148757", "author": "andres", "timestamp": "2010-06-09T18:16:19", "content": "isn’t that pretty much the same circuit as the joule thief?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "148769", "author": "UltraMagnus", "timestamp": "201...
1,760,377,427.529737
https://hackaday.com/2010/06/09/linux-tablet-built-around-a-beagleboard/
Linux Tablet Built Around A BeagleBoard
Mike Szczys
[ "handhelds hacks" ]
[ "arm", "beagleboard", "oled", "touchscreen" ]
[Justin] shows us how to make a Linux tablet out of a BeagleBoard . You may remember [Justin’s] work at liquid cooling an Arduino . For this one he moved past the AVR hardware but took the idea of shields along for the ride. The device above is something of a Linux tablet, with a touchscreen shield on top of the BeagleBoard , and one below it for power. He’s selling these as kits which include the 480×272 OLED display as long as you can handle the fine-pitch soldering for those headers. We’re not sure our hands are steady enough for the challenge. [Thanks Will]
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[ { "comment_id": "148716", "author": "Brennan", "timestamp": "2010-06-09T17:18:17", "content": "lol yes, I do remember that awful Arduino liquid cooling post on HAD.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "148741", "author": "Guy", "timestamp": "...
1,760,377,427.646503
https://hackaday.com/2010/06/12/massive-midi-station-ditches-the-monitor/
Massive MIDI Station Ditches The Monitor
Mike Szczys
[ "digital audio hacks" ]
[ "ableton", "controller", "midi" ]
[youtube=http://www.youtube.com/watch?v=8WQU-Lrm3D8] Who need’s a touch screen when you’ve got 800 inputs each backlit with an RGB LED? This impressive controller was built by Ander for use in his performances. He did it with the intent to get rid of the computer monitor in his setup. We think there’s something to be said about that. It seems weird to go to a performance and see the artist staring at a screen the whole time. Unfortunately we don’t have too many details about the hardware but we can tell you that he’s using Ableton Live on the software side of things.
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[ { "comment_id": "149514", "author": "Moggie100", "timestamp": "2010-06-12T14:14:35", "content": "Mmmmm… Blinky…", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149517", "author": "Sp`ange", "timestamp": "2010-06-12T14:32:29", "content": "I love seei...
1,760,377,427.722924
https://hackaday.com/2010/06/11/wiimote-controlled-rubens-tube/
Wiimote Controlled Ruben’s Tube
Jakob Griffith
[ "digital audio hacks", "Nintendo Wii Hacks" ]
[ "aluminum", "fire", "music", "pipe", "PVC", "sound", "speaker", "visualization", "wii", "wii remote", "wiimote" ]
While we could be content following our “kiddie d-day” as [Caleb Kraft] suggested. We know you can’t continue such an awesome Friday without trying to blow yourself up first. This Wiimote Rubens’ tube caught our eye. A PVC Aluminum irrigation pipe is drilled with holes and propane is pumped through. A speaker on one end creates changes in pressure and a neat light show follows suit. [ScaryBunnyMan] went further though, with a collection of software and a Wii Remote he “plays god” controlling the music, and thus, the fire. Check out a fun video after the split. [Via Make ] [youtube http://www.youtube.com/watch?v=ZPx6xdnjIAs&feature=player_embedded%5D
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[ { "comment_id": "149391", "author": "spyder_21", "timestamp": "2010-06-11T21:45:05", "content": "cool, but why not just control it all from your computer. Set an array of them up would make for a cool effect.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149...
1,760,377,427.580001
https://hackaday.com/2010/06/11/cockroach-pimps-a-sweet-ride/
Cockroach Pimps A Sweet Ride
Mike Szczys
[ "Robots Hacks" ]
[ "cockroach", "hissing", "roach", "trackball" ]
This giant Madagascar hissing cockroach rides proudly atop his three-wheeled robotic platform. This project from several years ago is new to us and our reaction to the video after the break is mixed. We find ourselves creeped out, delighted, amazed, and saddened. The cockroach controlled robot uses a trackball type input. A ping-pong ball is spun by a cockroach perched on top. The lucky or tortured (depending on how you look at it) little bug has an array of lights in front of it that illuminate when obstacles are in front of the robot. The roach’s natural aversion to light should make it move its legs away from that part of the display, thereby moving the robot away from the obstruction. We’ve seen some bio-hacking in the past. There were robots that run off of rat brain cells and remote controlled beetles . But none of these projects make us want to get into this type of experimentation. How about you? [vimeo=http://vimeo.com/2398096] [Thanks Scottman]
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[ { "comment_id": "149356", "author": "Bogdan", "timestamp": "2010-06-11T20:06:17", "content": "Wow….. at least nothing is inserted into the little bug.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149358", "author": "Bcaseb", "timestamp": "2010-06-11T...
1,760,377,428.063613
https://hackaday.com/2010/06/11/printed-circuit-board-minus-the-printed-traces/
Printed Circuit Board Minus The Printed Traces
Mike Szczys
[ "LED Hacks" ]
[ "4x4", "arduino", "led", "matrix", "protoboard", "shift register" ]
Reader [Osgeld] is a board-layout ninja. He populated this 4×4 LED matrix board without having a layout plan to start with. Watch it develop in slideshow format to see the art work he performs. The display is driven by a shift-register and he’s included all the proper parts like resistors and transistors, yet he makes everything fit. Why is this amazing? He’s using uninsulated wire and not a single one of them crosses another wire. He’s physically designing a printed circuit board, routing the traces as he solders away. He’s built this to use with an Arduino shift register tutorial and our only question is where is the header to hook this board to a microcontroller?
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[ { "comment_id": "149325", "author": "alankilian", "timestamp": "2010-06-11T18:13:48", "content": "Wonderful photography.This takes me right back to high schoolwhen I did this sort of thing until thewee hours of the morning.It’s super fun isn’t it?", "parent_id": null, "depth": 1, "replie...
1,760,377,427.809248
https://hackaday.com/2010/06/11/pressurized-pvc-water-gun/
Pressurized PVC Water Gun
Mike Szczys
[ "Toy Hacks" ]
[ "compresser", "gun", "PVC", "soda bottle", "water" ]
https://hackaday.com/wp-…er-gun.jpg?w=470
Hackaday’s [Caleb Kraft] has branded today “kiddie d-day” after seeing this PVC water gun follow close on the heals of the LEGO sniper rifle . This is a great summer project if you don’t mind letting the kids use the quick connect on your air compressor. It’s really just a ‘T’ made of PVC with two valves for air and water management and a soda bottle on the third leg as a reservoir. In the short clip after the break you can see that you don’t get a lot of shooting time out of each charge compared to the DIY Super Soaker , but this build is also a lot less complicated. [youtube=http://www.youtube.com/watch?v=9AeOZvsOTNc] [Thanks Frogz]
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[ { "comment_id": "149309", "author": "woutervddn", "timestamp": "2010-06-11T17:02:50", "content": "muhahaaah! xD that’s one I just have to trie!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149312", "author": "Ideas_Man", "timestamp": "2010-06-11T17:2...
1,760,377,427.986864
https://hackaday.com/2010/06/11/intelligent-battery-charging/
Intelligent Battery Charging
Caleb Kraft
[ "classic hacks", "Tool Hacks" ]
[ "battery", "charge" ]
[Razor] shares with us the plans for an intelligent battery charging circuit . Instead of blindly charging your battery into oblivion, this one shuts off once  the battery is fully charged. It is a nice clean circuit that can be adjusted and fine tuned to your specific needs via some trim pots and dip switches. [via HackedGadgets ]
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[ { "comment_id": "149251", "author": "GldRush98", "timestamp": "2010-06-11T14:37:20", "content": "Don’t all modern charging circuits (like those in mobile phones, laptops, etc…) do this?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "149252", "author": "Ran...
1,760,377,428.123348
https://hackaday.com/2010/06/11/seven-six-two-millimeter-full-plastic-jacket/
Seven-six-two Millimeter. Full Plastic Jacket.
Mike Szczys
[ "Toy Hacks" ]
[ "full metal jacket", "lego", "rifle", "sniper" ]
Minifigs beware, something’s afoot. This LEGO sniper rifle is in talented hands to clean up those problem areas. [Jack Streat] put together this fascinating build as well as the delightful demo after the break. The bolt pulls a 1×4 block out of the eight-round magazine and loads it into the chamber. A pull of the trigger flings it with surprising accuracy. Want to be the coolest parent ever? Forgo the store-bought toys this year and put one of these together for your kid. Just don’t turn them into Private Pyle (NSFW) . [youtube=http://www.youtube.com/watch?v=H23HDHRVjpA] [Thanks Gabe via TBT ]
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[ { "comment_id": "149238", "author": "brsnow", "timestamp": "2010-06-11T13:35:03", "content": "whoo hooo, first response. But anyways, this puts the lego blowguns I used to make to shame. This is awesome, just dont turn into a disgusting fatbody, and remember which is your rifle and which is your g...
1,760,377,428.281184
https://hackaday.com/2010/06/09/resurrecting-isa-hardware/
Resurrecting ISA Hardware
Mike Szczys
[ "classic hacks" ]
[ "16f877", "isa", "pic", "radio", "tuner" ]
[Alex] had an old FM radio tuner card come his way. It used an ISA connector , a standard that went the way of the dodo in the mid-nineties. With the challenge of implementing an ISA-bus to configure the card he set out on his mission. What he came up with is a working radio using the ISA card and driven by a PIC 16F877. Join us after the break for schematic, code, and a few details. The card is based on an LM7000 PLL synthesizer paired with a LC7534 tone/volume controller. With a bit of datasheet study [Alex] figured out where the data pins for the chips map to the ISA bus. Working with a prototyping board, the hardest part turned out to be finding the addresses for the chips. He ended up testing all 256 possibilities and watching for the data to be latched from the ISA bus. Alex says the hardware is capable of tuning from about 60MHz up to 125MHz. We asked him if he’d share his code and schematic. He came through with both, and kudos to him for such a clean hand-drawn schematic. Nice work [Alex]! Source Code (Tarball)
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[ { "comment_id": "148698", "author": "RetepV", "timestamp": "2010-06-09T16:17:31", "content": "I made a terminal once out of an old ISA Hercules card and an 8051 processor.This was before I had a digital camera, so no pics or anything. I don’t even know where the hardware is anymore. :/", "parent...
1,760,377,428.207704
https://hackaday.com/2010/06/09/preserving-old-stuff-with-the-library-of-congress/
Preserving Old Stuff With The Library Of Congress
Caleb Kraft
[ "Hackaday links", "Misc Hacks" ]
[ "document", "historical", "scan" ]
Take a few moments and browse this gallery from the Library of Congress . Tasked with the job of preserving the roughly 150 million historical items, they are constantly developing new methods using bleeding edge technology. There is an odd balance of some of the oldest documents in tandem with some of the newest technology evident in these pictures. From doing spectral scans of ancient books to laser mapping warped phonographs, everything must be preserved and documented.
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[ { "comment_id": "148694", "author": "Whatnot", "timestamp": "2010-06-09T16:06:21", "content": "First you see the minute care for old items, then you see the incoming bin and it looks like a garbage truck just dumped it all in, makes you wonder if in 75 years they will be all careful and wearing cott...
1,760,377,428.331274
https://hackaday.com/2010/06/09/baxter-the-butlerbot-and-robofridge/
Baxter The ButlerBot And RoboFridge
Caleb Kraft
[ "Beer Hacks", "Robots Hacks" ]
[ "beer", "butler", "cold one" ]
[youtube=http://www.youtube.com/watch?v=HvOGwylZOM4] [Steve Norris] has been devoting his time, effort, and knowledge to the most noble of causes; cool beverage acquisition. Baxter the ButlerBot and RoboFridge work in tandem to deliver cold ones when needed. As you can see in the video, this possibly over engineered system works quite smooth. Though the details on his site are pretty limited, browsing his Flickr stream will get you all those delicious construction photos you crave. [via Flickr ]
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[ { "comment_id": "148678", "author": "theodore", "timestamp": "2010-06-09T14:27:02", "content": "Bout Time Damn it!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "148680", "author": "Potato", "timestamp": "2010-06-09T14:30:17", "content": "what a no...
1,760,377,428.377957