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Archive: Electronics
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September 12, 2007
One minute project "Chip bugs"
Evil Mad Scientist Laboratories writes -
If you work with electronics, you have probably at some point come across chips that have gone bad. The usual strategies to deal with these include (1) writing "DEAD?" on them in large letters (2) throwing them out, and (3) hiding the evidence. I once heard about a lab student who, whenever he came across a dead chip in his circuit, would dutifully file it back in the drawer with the new chips of that variety-- just in case it turned out to be good after all.One minute project "Chip bugs" - Link.Here's an alternative solution: Turn your chips into Chip Bugs: cute, tiny sculptures that leave no doubt as to which components are which.
Posted by Phillip Torrone |
Sep 12, 2007 03:00 PM
Arts, DIY Projects, Electronics |
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| Comments (2)
Video and voice control for WowWee Roboquad
Robert Oschler, of Robots Rule!, has posted a video of his system for mounting a vidcam on a WowWee Roboquad and then using the voice command feature of his Robodance software to control the bot from anywhere in cyberspace using Skype.
Skype Robot Demonstration with Roboquad - Link
Posted by Gareth Branwyn |
Sep 12, 2007 02:00 PM
DIY Projects, Electronics, Robotics |
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| Comments (0)
eDrum - DIY electronic drum controller
Wow, made an awesome "eDrum" - A DIY electronic drum controller. Source and schematics included! - Link.
Posted by Phillip Torrone |
Sep 12, 2007 11:00 AM
DIY Projects, Electronics, Music |
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| Comments (3)
September 11, 2007
RC4560-based headphone amplifier
This SMD op-amp project uses the TI RC-4560 dual op-amp chip and a salt water-etched PCB. The builder got the op-amp as a free sample from Texas Instruments and scavenged all of the SMD resistors from old hard drive electronics. The results are not pretty, but they're functional. The circuit used (with some changes) is the Chu Moy design found here. The CMoy circuit is not SMD.
Op-amp headphone amplifier - Link
Related:
- In-line headphone amp - Link
- MAX - headphone amp - Link
- Altoids headphone amp - Link.
- AVR based headphone amp - Link
- Altoids and tin cases Archives - Link
From the pages of MAKE:
Mint-Tin Amp. MAKE 04 page 131. Pocket amplifier punches up headphones. Subscribers--read this article now in your digital edition or get MAKE 04 @ the Maker store.
Posted by Gareth Branwyn |
Sep 11, 2007 08:00 PM
DIY Projects, Electronics, Instructables, Music, Portable Audio and Video, iPod |
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Tactical coordinate suppression
Here's an interesting piece of arty annoyanceware, a GPS jammer that finds your coordinates (via GPS) only after you find a place and stand still (switched by a motion sensor), then the device jams the waypoint for everybody else. The concept of the device is to help you find you a place of solitude and then its blots out the spot electronically, so that others can't find it.
GPS-HOG - 2007 - Link
Related:
- Modifying a cheap portable cellphone jammer - Link
- The World's Simplest Radio Jammer - Link
- Wave Bubble - Open source Wi-Fi, cellphone, GPS and ... - Link
- Turn off TV week - Link
Personal cell phone signal blocker device ($48 - not sure what's up with this company, proceed with caution) - Link.
Wavebubble open source RF jammer - Link.
Posted by Gareth Branwyn |
Sep 11, 2007 04:00 PM
Arts, DIY Projects, Electronics, GPS, Gadgets |
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| Comments (8)
The Electronic Peasant's Guide to Fun and Profit with Electronic Salvage!
Good starter on procuring electronics from tossed electronic -
The Electronic Peasant likes to get more enjoyment from DIY for less money, and sometimes uses obsolete parts as well. Salvaging old equipment can provide many important parts at little or no cost. And it's environmentally friendly to save this stuff from going to the landfill!The Electronic Peasant's Guide to Fun and Profit with Electronic Salvage! Link.
Posted by Phillip Torrone |
Sep 11, 2007 12:00 PM
DIY Projects, Electronics |
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| Comments (1)
Xbox 360 Chatpad disassembly
Photos of the disassembly of the brand-new Xbox 360 Chatpad, showing the PIC16F883 it contains which makes it ripe for hacking, thanks Steve! Link.
Posted by Phillip Torrone |
Sep 11, 2007 06:00 AM
Electronics, Gaming |
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| Comments (8)
PC keyboard to an AVR
Simonetta writes -
A simple program demonstrating how to interface a standard PC keyboard to an AVR. In assembler for Tiny11 but adaptable to all AVRs. There are two routines. An interrupt routine that collects the bits sent from the keyboard into a byte, and the routine to parse these bytes into ASCII.PC keyboard to an AVR - Link.
Posted by Phillip Torrone |
Sep 11, 2007 03:00 AM
DIY Projects, Electronics |
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| Comments (2)
September 10, 2007
No-budget multi-touch interface?
This video of a DIY multi-touch interface in tantalizingly cool, but there's little detail. So far. More is promised. But then, that was back in June.
DyeSight $2 Multi-Touch Pad - [via] Link
Posted by Gareth Branwyn |
Sep 10, 2007 06:00 PM
Computers, DIY Projects, Electronics |
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| Comments (3)
Xbox "Mini" Casemod
Nice modding of a first-gen Xbox into an "Xbox Mini." In the foreground of the mobo (in front of the cooling fans) can be seen the builder's custom PSU (power supply unit). Gorgeous case.
Introducing Xbox Mini - [via] Link
Posted by Gareth Branwyn |
Sep 10, 2007 04:00 PM
DIY Projects, Electronics, Gaming |
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| Comments (0)
Arduinos are back in stock...
The last time these were in our store they sold out in a couple days - The Arduino is a tool for making computers that can sense and control more of the physical world than your desktop computer. It's an open-source physical computing platform based on a simple microcontroller board, and a development environment for writing software for the board. Arduino is open source. These are the new ones the Arduino Diecimila - Link.
Posted by Phillip Torrone |
Sep 10, 2007 03:00 PM
Arduino, Electronics |
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| Comments (0)
Playstation turned into light-seeking robot
I posted a piece on Street Tech about BEAM builder Harold Ilano's latest creation, a single-chip (74AC240) photovore made from some Playstation parts and a cell phone battery.
Mercury, Robot Seeker of Light (Detector of Dark) - Link
Posted by Gareth Branwyn |
Sep 10, 2007 02:00 PM
DIY Projects, Electronics, Robotics |
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| Comments (0)
The Story of AVR
The AVR is a a popular microcontroller in maker-land, here's a video on where it came from... -
What on earth is AVR? How did it become one of the biggest successes in the industry? And what does AVR really stand for? Watch this special to become enlightened, meet the AVR inventors and Atmel Norway founders, and get a peek inside the AVR design centre in Norway.AVR Television » The Story of AVR - Link.
Posted by Phillip Torrone |
Sep 10, 2007 07:00 AM
Electronics |
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| Comments (0)
Arduino - NGAutoReset
Here's how to auto reset the older Arduino NG's (just like the new Diecimila) -
If you have an Arduino NG and you're envious of all the seconds saved by those Diecimila owners who don't have to press the reset button anymore, this page is for you. You can upgrade an Arduino NG to take advantage of the auto-reset functionality in Arduino 0009 and beyond with just a 0.1uF (100 nano-farad) capacitor and a soldering iron.Arduino - NGAutoReset - [via] Link.
Posted by Phillip Torrone |
Sep 10, 2007 06:00 AM
DIY Projects, Electronics |
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Oscilloscope TDS5104B
Man, no one breaks it down about scopes' better than bunnie... -
The Youscope demo is a hard act to follow up on, but I've had this scope screenshot for a while now and I thought it was so neat that I wanted to talk about it a bit on the blog.bunnie's blog » Blog Archive » More Scope Pr0n - [via] Link.Before I dive into the post, let me say that the best accessory I ever bought for my scope (a Tek TDS5104B-don't let anyone ever tell you an Agilent is better than a Tek!) is the P6245 active probe. After suffering for many years with a Kikusui 100 MHz analog scope with second-hand passive probes, the quality of measurements I get with the active probe and the TDS5104B brings a tear to my eye. For the first time ever I can see traces that actually look like the darn SPICE simulations...
Related:
Oscilloscope art, TONS! - Link.
- Link.
Posted by Phillip Torrone |
Sep 10, 2007 03:00 AM
Electronics |
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| Comments (4)
September 9, 2007
Bare Bones Arduino Diecimila mod
David Fowler of uC Hobby writes:
A new version of the Arduino board was released that added a cool new feature. With help from Paul Badger of Modern Device Company and Brian of the Freeduino project this article will show you how to modify the Bare Bones Arduino board to make it compatible with the new Diecimila Arduino. No more pressing the reset button to load your code and no more long waits to see if it runs.
Bare Bones Arduino Diecimila Mod - Link
Posted by Gareth Branwyn |
Sep 9, 2007 02:51 PM
Arduino, Computers, DIY Projects, Electronics |
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| Comments (1)
iRobot Create ServerBot
This builder used his iRobot Create platform to quest for the holy grail of domestic bots: the drink-serving robo-butler.
ServerBot - for serving food and drinks - Link
Posted by Gareth Branwyn |
Sep 9, 2007 08:00 AM
DIY Projects, Electronics, Instructables, Robotics |
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| Comments (0)
September 8, 2007
HOW TO - Make a PosterBot with the iRobot Create
Here an Instructable on using the iRobot Create, parts of an old injet printer, and some C/C++ programming to create a marker-wielding posterbot.
PosterBot: Make a Marker-Writing Robot out of an Old Inket printer and an iRobot Create - Link
Related:
- The Make:: Drawbot Draws! - Link
- Make Podcast: Weekend Projects - Making A Drawbot - Link
- HOW TO - Make a Kid's "Draw Bot" - Link
Posted by Gareth Branwyn |
Sep 8, 2007 11:42 AM
DIY Projects, Electronics, Instructables, Robotics |
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| Comments (0)
September 7, 2007
Make a pocket LED cube - Weekend Projects Podcast
This week, Bre Pettis teams up with Mitch Altman and George Shammas to make a little 3x3x3 cube made of little LED lights that you can program with any kind of animation you like! - Subscribe Link
Update: in the podcast I say you need a yellow purple brown colored resistor (470 Ohm). I need to get my glasses checked because actually you need a yellow purple black (47 Ohm) resistor!
Update 2: It has come to our knowledge that James Clar is the initial creator of the 3D LED Cube. He is a lighting designer that has done many things with technology lighting and his works can be seen at: www.JamesClar.com You can view his patent for the 3D Cube with the wiring schematic at the USPTO patent # 7190328
Posted by Bre Pettis |
Sep 7, 2007 12:50 AM
DIY Projects, Electronics, MAKE Podcast, Weekend Projects |
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| Comments (16)
September 6, 2007
Defconbots autonomous sentry gun
Kevin Hjelden and his friend Joe built this autonomous shooter for this year's Defconbots competition. They described the build before they started:
The electronics for this project are going to be relatively simple as well. To control the three servos (pan + tilt + firing), we are going to use the Pololu 8-channel servo controller. Normally we might use an atmega to do the control, however I already created code to control the pololu controller for another project and it's really inexpensive/easy to use. If it required more complicated feedback or logic, a microcontroller might have been the better choice, but in this case it wasn't, so the right decision was just to use the Pololu controller. To control the valve, we had two options. One was to use another channel on the servo controller and something like a Banebot motor controller to apply power to the electronic valve, the other was to use the servo that pushes the plunger to push a switch that opens the valve. The latter option was chosen.
Related:
Posted by Gareth Branwyn |
Sep 6, 2007 04:00 PM
Computers, DIY Projects, Electronics, Robotics |
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| Comments (6)
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