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Archive: Electronics
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December 15, 2006
HOW TO - Bulb replacement for desk lamps using car bulbs
This is pretty clever, use sturdy, cheap car bulbs when replacing the crummy ones used in desk lamps, Mustaphabarakat shows you how - Link.
Posted by Phillip Torrone |
Dec 15, 2006 08:09 AM
DIY Projects, Electronics, Instructables |
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Embedding a wifi detector into a backpack strap workshop
Fabienne writes -
"I'm doing a workshop at the 23c3 in a few weeks, Embedding a wifi detector into a backpack strap workshop, based on the original project - The new project will be removable in a velcro-ed fabric housing and uses new rechargeable via usb cheap wifi detectors as the base for the hack. I'm encouraging people to bring their own materials if they would rather not pay the parts fee (about 35 euros and that even includes a soldering iron)." - Link & more.
Posted by Phillip Torrone |
Dec 15, 2006 05:38 AM
DIY Projects, Electronics, Events |
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December 14, 2006
Evil Mad Scientist kits - Low-cost open-source holiday project kits
Our friends @ Evil Mad Scientist has two open source holiday kits AND the instructions are in PDF AND made wit ComicLife, nice work!
"We have written instructions for building two sweet microcontroller-based electronics projects for the holidays: an alphanumeric LED christmas tree ornament and an LED mini-menorah (hanukkiah).
These are open-source projects; You can download and modify the source code, use it to program your own microcontroller, and solder the microcontroller to some LEDs to help make your own holiday decorations.
If programming microcontrollers is not your idea of a good time, we understand. Not everyone has (1) access to a microcontroller programmer, (2) the time and (3) the desire to modify the firmware of their christmas tree ornaments.
In order to help our fellow citizens Evil Mad Scientists with their holiday projects, we've put together electronic soldering kits for these projects which we are selling at cost. Each $5 kit includes the parts and instructions to build either an LED christmas tree ornament or an LED mini-menorah" - Link.
Posted by Phillip Torrone |
Dec 14, 2006 11:04 PM
DIY Projects, Electronics |
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| Comments (5)
HOW TO - Make a $50 golf training aid for 5 bucks
Max writes -
"It's getting near Christmas time and I needed to prepare some Christmas gifts for my parents. Since my Dad does not get much time on the golf course these days, I figured I could make a training aid he could use at home to keep his swing on path.
Since I didn't want to spend 50 bucks on the golf training aid, so I decided to make one real quick." - Link & photos.
Posted by Phillip Torrone |
Dec 14, 2006 08:11 PM
DIY Projects, Electronics |
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| Comments (5)
HOW TO - Nintendo Wii combo Component/composite cable
Pridkett writes -
"The Nintendo Wii ships with a composite video cable that is capable of 480i resolution. Currently first party component cables, which allow for 480p resolution, are available through retailers and directly from Nintendo. However, when attaching the component cables, one loses the ability to output composite video. Why is this an issue? Well, it may be that you take your Wii over to friends houses frequently and would like to only have to take a single cable. Or, you may be like me, and use a monitor for your Wii's display. My monitor has composite but no component in. Using a small transcoder box, such as the Mayflash YPbPr to RGB transcoder, that only supports 480p. In which case, when a game only supports 480i, as is the case with many GameCube games, you're forced to switch cables.
Luckily, this cable does them both. We'll take a standard first party component cable, and a few buck worth of parts from Radio Shack and put together a cable that is selectable between composite and component output" - Link.
Related:
- Wii projects, hacks and mods @ MAKE - Link.
Posted by Phillip Torrone |
Dec 14, 2006 01:13 AM
DIY Projects, Electronics, Gaming, Instructables |
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| Comments (1)
December 13, 2006
Cable mod: MintyBoost to Samsung D*00 cell phone
Nachimir has a good mod for the MintyBoost we sell in the MAKE store and the Samsung D*00 phone--
"Samsung D series cell phones have some problems with USB charging, which cause them to not work with the excellent MintyBoost USB charger.
This cable will enable you to charge a D series samsung from the minty (Tested: D900, Should Work: D800, D820, E780, E870, P300, P910, P920, T809, Z540, according to pinouts.ru).
The method is a little crude, but it should work for earlier D*00 models should they present similar problems. Get the right charger though; they have 18 pins out instead of 20." - Link.
Related:
- MintyBoost - Link.
Posted by Phillip Torrone |
Dec 13, 2006 01:41 PM
DIY Projects, Electronics |
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HOW TO - Revive Nicad batteries by zapping with a welder
One of my favorite makers, Tim, has a good how-to on bringing some old ni-cads back to life using a welder - this is one of those that you shouldn't do unless you know what you're doing, k?
"Nicad batteries often die in such a way that they won't take a charge and have zero voltage. This usually means they're shorted out by crystal dendrite growth.
Here's a method of bringing them back to life by zapping those shorted crystal dendrites away with too much current and/or voltage. We'll use a welder as a power source. You could also use a car battery, a DC powersupply, or almost anything with some voltage. Charged-up capacitors are popular for this because you can get a very fast pulse out of them and still limit the power. it's a lot safer that way..." - Link.
Posted by Phillip Torrone |
Dec 13, 2006 01:00 PM
DIY Projects, Electronics |
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December 12, 2006
Backpacking battery pack
Doug made a simple battery pack for Ham radio'ing while backpacking, it's housed in a giant Altoids tin, he writes -
"I have a 10 cell 'AA' NiMH battery pack (12V @ 1.6AH) that I use for backpacking. It needed a home! I also wanted a voltmeter built-in so I could keep track of it's condition and charging (I live in the woods, you have to keep chasing the sun with your solar panel..). Radio Shack didn't have any cases / boxes that suited me so I got thinking about that Super-Sized Giant Altoids tin I had and thought it might work. Bingo! The battery pack, LED voltmeter (www.rainbowkits.com), switches and connectors all just fit! " [via] - Link.
Related:
Posted by Phillip Torrone |
Dec 12, 2006 01:49 PM
DIY Projects, Electronics, Wireless |
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Gifts for the INTELLIGENT DESIGNER
We asked a few really smart makers of fashion, hardware, software and electronics to tell us what is on their wish list this holiday season (we like to call them intelligent designers) and boy did they come up with some good ones! Check out the dozens of ideas and gifts they put together that may just help you figure out what to give that special intelligent designer.
Posted by Phillip Torrone |
Dec 12, 2006 12:37 PM
Electronics, Gadgets, Holiday projects, Toolbox |
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| Comments (10)
4 voice FM synthesizer in a cigar box
Owen writes -
"The instrument is a cigar box synthesizer. It is made out of a Critter Board, a small audio amp, and some other components we had kicking around. Since it is a synthesizer, we use the version of the Critter Board with on-board flash (no card socket).
The project utilizes all the features that make the Critter Board unique, such as the volume control header, the sound output header (you can listen on the speaker, or plug it in to a bigger amp), and most of the I/O lines.
After digging up a 12 key key-pad, we thought it would be nice to make a 1 octave synthesizer. We then added another button above the keypad as a register button. If it is held down before pressing any of the 12 keys, the key will play an octave higher. So it is really a 2 octave synth." - Link & video.
Also, check out their Video Critter -
"The video critter is an open-source audio/video platform that may be used with most any TV (any TV with composite video input).
It is a one stop solution, providing audio/video output and proccessing for your applications. Just add some buttons, knobs, or joysticks, and you're ready to go. It is useful for a variety of embedded applications" - Link.
Related:
- Critter Board, a hardware platform for creating self-contained electronic music devices - Link.
Posted by Phillip Torrone |
Dec 12, 2006 10:14 AM
DIY Projects, Electronics, Music |
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PIC controlled, stepper motor driven mouse trap
Duxtech writes -
"10bulls decides to invent to world's greatest battery powered, stepper motor driven, PIC controlled, CNC built mouse trap to rid himself of a pesky rodent. A much Better mouse trap - The little Bugger Noel (Rhymes with Vole) even gets a special treat in the end..." - Link.
More:
- Life Size "Mouse Trap" - Link.
- A better mousetrap! - Link.
- HOW TO - Catch a mouse without a mousetrap - Link.
- Homemade humane mousetraps - Link.
Posted by Phillip Torrone |
Dec 12, 2006 09:50 AM
DIY Projects, Electronics |
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| Comments (2)
A single-digit Nixie clock
A little follow up on the single Nixie Tube clock we posted, here's another version sent in from Amanda that RSW made -
"A while ago I found a Burroughs B-5853 Nixie tube kicking around in the lab and decided that I should put it to good use. Since I only had one of this size, I wanted to make a single-digit display out of it. After I saw Jason Harper's Nixie clock gallery, I decided that one digit really could make a cool clock.
To add to the excitement, I wanted to be able to PWM the display, allowing smooth fading and ultra sexiness (you know, for the ladies :-P) and allow for further expansion, perhaps via a computer interface. For these reasons, I chose the Microchip PIC16F628 microcontroller, which has an on-board USART and does hardware PWM on one pin. Moreover, I'm already quite experienced making crap with the 16F628, including another clock..." - Link.
Ready.Set.GLOW:
- David Forbes, Nixie-display clocks ... - Link.
- HOW TO - Powering Nixie Tubes... - Link.
- Single-digit Nixie, Oscilloscope CRT a Weston ... - Link.
- Tiny Nixie clock - Link.
- Nixie clock gallery - Link.
- Nixie Tube collectors and designers - Link.
- Nixie Build - Link.
- NIXIŠ-1 - Nixie clock - Link.
- Nixie tube watch - Link.
- Nixie propeller clock - Link.
- Ryan Brooks's 6502 Nixie clock - Link.
- Nixie tube - tube clock - Link.
Posted by Phillip Torrone |
Dec 12, 2006 08:49 AM
DIY Projects, Electronics |
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HOW TO - PC Parallel port interfacing
David writes -
"Using the parallel port is often easier to work with then a microcontroller. I find that testing code on the PC can be much easier then going straight to the firmware as the developer tools for the PC platform are better. This is especially true when working with a new device such as a graphic LCD. Once you get your code working through the PC printer port, then you can easily port the code and what you have learned into the firmware." [via] - Link.
Source and DLL included.
Related:
- Parallel port powerSwitch project - Link.
- Control the Parallel (or Serial) Port with Python - Link.
- Controlling a Parallel Port with Perl - Link.
- HOW TO - Build parallel port prototypes - Link.
Posted by Phillip Torrone |
Dec 12, 2006 06:31 AM
DIY Projects, Electronics |
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HOW TO - Speak & Spell bending
Peter writes -
"I just added a few things to my site that may be of interest. One is a very small collection of speakandspell bending schematics, the other is a page loosely explaining how to added a programmable step sequencer to your speakandspell to make a speakandspell drum machine...
The effect is a glitched out sounding, programmable sequence. There are 8 steps in the sequence and each can be turned ON or OFF. As the sequence runs, it advances one step at a time, 1 thru 8, then repeats. When a step is set to the ON position, it activates 2 effects in the Speak&Spell for the duration of that step. The 2 effects are a tone generator and a "hold" effect.
The schematic above shows how to locate these bends. " - Link & bending page.
Related:
- Casper Electronics photo gallery - Link.
- MIDISpeak: Speak & Spell MIDI Kit - Link.
- Awesome Felt Speak and Spell, Speak and Math + Others - Link.
- MIDISpeak kit - Speak-n-Spell talking toy MIDI retrofit - Link.
- Circuit Bent Speak and Spell... - Link.
- Circuit-Bending: Build an Incantor - Link.
Posted by Phillip Torrone |
Dec 12, 2006 05:26 AM
DIY Projects, Electronics, Music |
Permalink
| Comments (2)
DIY Mini LED Xmas tree
Axeman writes in -
"This is my personal solution to the universal problem "How can I have a christmas tree AND three cats in the same house?" - A small tree (a little more than 6 inches high), an omnipresent PIC microcontroller that pseudo-randomly drives 8 high power LEDs, 4 rechargeable AA batteries, a little box as base, and that's an art attack!" - Link.
Schematic and HEX included.
Posted by Phillip Torrone |
Dec 12, 2006 04:18 AM
DIY Projects, Electronics, Holiday projects |
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| Comments (3)
HOW TO - Make a spinning LED Christmas tree
Max writes -
"In this special Christmas edition of Zedomax DIY122, we will show you how to make the geekiest Christmas Tree in the world using LEDs, bathroom pipes, and an embedded cubloc module." - Photos & How-to.
Posted by Phillip Torrone |
Dec 12, 2006 12:56 AM
DIY Projects, Electronics, Holiday projects |
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| Comments (0)
December 11, 2006
Moonwalker shoes
Andrew made a pair of shoes that control Michael Jackson songs when plugged in (using Force-sensitive resistors)...
"The initial idea involved a pair of old sneakers, repurposed, to dynamically manipulate a sound file. Basically I wanted to build shoes that would BOOM! when you walked. The louder you stomp the louder the BOOM! In a sense -- "giant" shoes.
The two FSR's I was working with broke at the eleventh hour, and the trouble-shooting that insued, reinvented the project for me. " [via] - Link.
Posted by Phillip Torrone |
Dec 11, 2006 06:43 PM
Arts, DIY Projects, Electronics |
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| Comments (2)
Electronic flame flicker
Build instructions and more for building a holiday electronic flame flicker -
This device can be used as a lamp dimmer or a flame flicker simulator, and may be switched on and off with the switch on a lamp. The flicker dynamics may be customized for candle, kerosene (or oil) lamp or campfire. Replacing the controls with fixed resistors yields a version inexpensive enough to build an array of them for independently flickering electric candles - Link.
Posted by Phillip Torrone |
Dec 11, 2006 05:13 PM
DIY Projects, Electronics, Holiday projects |
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| Comments (1)
XGameStation hacking rig
Brian picked up one of our XGameStation kits and took'er out for a spin...
This is an inventory of everything you need to do XGameStation hacking on the go. I've put notes in the picture, but here's a list, too:
- XGameStation Pico
- Parallax SX-Key programmer
- KeySpan USB/Serial Adapter
- USB-powered video capture device (don't get the one I'm using... it's ancient)
- Fx Video Capture (DScaler doesn't work under Vista, but it would be my first choice)
- SX-Key IDE (I use 3.0 because 3.3 claimed there was an error in the racer demo code)
- 9v power source. You really want the wall-wart, because programming the SX28 is kind of rough on the battery.
Posted by Phillip Torrone |
Dec 11, 2006 12:14 PM
DIY Projects, Electronics, Kits |
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| Comments (0)
Roomba tilt control
Todbot shows you how to use your MacBook's built-in tilt sensors and Perl to control a Roomba - Link & more.
Related:
- Hacking roomba book - Link.
- New in Roomba hacking... - Link.
- HOW TO - Make a Roomba Serial Interface - Link.
- HOW TO - Roomba Bluetooth Interface - Link.
Posted by Phillip Torrone |
Dec 11, 2006 11:45 AM
DIY Projects, Electronics, Robotics |
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| Comments (0)
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