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Archive: Electronics
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September 17, 2007
Gyro-stabilized camera rig for RC plane
It's Chris Anderson Day on MAKE: Blog. Here, he shows off a gyro-stabilized camera mount he built for his RC plane. You can see more of his (and others) efforts at building amateur UAVs at DIYDrones.com.
Gyro-stabilized camera mount - [via] Link
Posted by Gareth Branwyn |
Sep 17, 2007 06:00 PM
DIY Projects, Electronics, Flying, Imaging |
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| Comments (0)
Shortwave radio kit
The shortwave radio projects keep coming in, here's a great kit-
Many pieces of ham radio equipment are available as kits. Ten-Tec offers two kits in the $30 range that are good beginner projects. One is the 1054 4-band Shortwave Regenerative Receiver and the other is the 1056 "any band" CW/SSB Direct Conversion Receiver. The experience gained building either of these kits is similar to and is applicatable to many other projects. Here we'll walk through constructing a Ten-Tec 1054 Shortwave Receiver.Ten Tec 1054 Shortwave Radio Kit - Link.
Posted by Phillip Torrone |
Sep 17, 2007 01:00 PM
DIY Projects, Electronics, Kits |
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| Comments (3)
HOW TO - Build a crystal shortwave radio
jmluber writes in with another radio project -
In the old days, people used radios that used a germanium diode (crystal radio) to receive am radio without the need for a battery (the radio wave powers this type of radio). This site modernizes that concept by showing you how to build a shortwave radio that utilizes a germanium diode.Build a crystal shortwave radio - Link.
Related:
Make a Foxhole Radio - Weekend Project Podcast - Link.
Make a Foxhole Radio - Weekend Project PDFcast - Link.
Posted by Phillip Torrone |
Sep 17, 2007 11:00 AM
DIY Projects, Electronics, Retro, Telecommunications |
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Arduino-based optical tachometer
Chris writes -
I am the author of the original Beakman's Electric Motor page. Over the years, I have received dozens of e-mails asking me how to measure the speed of the motor. I got one such e-mail last week on the same day my Arduino Diecimila board arrived from the Make Store, so I had an idea for my first Arduino project. I built an optical tachometer for the Beakman's Motor using the Arduino, an IR LED/photodetector, a red LED, two resistors, and some KNex pieces. It sends the speed in RPMs back to the computer over the serial port. I wrote it up on Instructables and posted more pictures up on Flickr and in the Flickr Make pool.Arduino-Based Optical Tachometer - Link.
Related:
Arduino Diecimila - Link.
Posted by Phillip Torrone |
Sep 17, 2007 09:00 AM
Arduino, DIY Projects, Electronics |
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Hard drive clock
Amazing hard drive clock from Germany - [via] Link & translated site.
Posted by Phillip Torrone |
Sep 17, 2007 06:00 AM
Arts, Electronics, Made On Earth |
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| Comments (1)
Microcontroller programmer is not an IED
Here's an interesting story from "Pages of Rages" about traveling with a micro-controller programmer -
Yesterday I flew out of Rapid City, SD as part of some work I'm doing. I was in the security line when I heard my name paged.Microcontroller programmer is not an IED - Link.This crack security staff was digging through my bag. They were concerned because I brought a microcontroller programmer. Actually, it wasn't just the programmer, it was the 1 ohm resistor I had spliced in series with the power lead to measure current, and the 10 second RC filter I had placed across that to give my DMM a better chance of reading the average current.
"Sir, this is an improvised electronic device. You will never be allowed to fly with this."
I responded to many questions with information about my occupation, circuit theory up to and including Ohm's law, and a discussion of the market for bicycle power meters. But they still would not let me fly with the programmer. I had to leave it behind.
I was finally able to fly out ten hours later, with a brand-new-in-the-box MSP430 programmer. Apparently, it's not "improvised" if it comes in a printed box.
Posted by Phillip Torrone |
Sep 17, 2007 05:00 AM
Electronics |
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| Comments (28)
Hacking the Hot Wheels radar gun
Jason writes -
Ed Paradis has put some thought into a couple of hacks for the Hot Wheels toy radar gun. You can use the radar to detect the speed of moving objects, but Ed also posted some semi-successful (and some not-so, but worth reading) experiments with using the device in a custom circuit to detect the distance of objects for robotic projects. It's also worth noting that the LCD can be repurposed as a display output for your other electronic gizmos. For 30 bucks, it's a pretty good collection of useful robot parts.Hacking the Hot Wheels Radar Gun - [via] Link.
Posted by Phillip Torrone |
Sep 17, 2007 04:00 AM
DIY Projects, Electronics |
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| Comments (2)
Skull PCB bracelet
Becky writes -
Livejournal user vomitsaw has created these printed circuit board (PCB) bracelets to look like skulls! No word as to whether they're for sale, but the etched copper and AV plug fasteners make these a geek-chic must have.Skull PCB Bracelet - [via] Link.
Posted by Phillip Torrone |
Sep 17, 2007 03:00 AM
Crafts, Electronics |
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| Comments (5)
Convert PDF to Gerber and NC Drill formats
Matt writes -
A few months ago, I had a problem -- I wanted to design a printed circuit board in Adobe Illustrator, but also wanted to send it out to BatchPCB for manufacturing. Board houses require that designs be submitted in Gerber format, the creation of which generally requires special CAD software. At first I thought my only recourse would be to etch the board at home, but I did a little research and came to the conclusion that converting PDF files to Gerber format was a viable option.Convert PDF to Gerber and NC Drill formats - Link.After a week of Perl hacking, I had a script that would convert each layer of an uncompressed PDF 1.3 file to its corresponding Gerber and NC Drill files, ready for submission to any PCB manufacturer. The result is pdf2gerb, which you've found here.
Posted by Phillip Torrone |
Sep 17, 2007 01:00 AM
DIY Projects, Electronics |
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September 15, 2007
MUIO: "Programming-free" microcontrollers
Steve Symons' "MUIO Interface" is an easy to use, homebrew microcontroller board that operates over USB and requires no programming to get started. The board features everything from on board analog to digital converters, an I2C bus, three expansion busses, and more! Programming the board is only OSX and Linux compatible at the moment, but there might be hope for a Windows version soon. Since MUIO works seamlessly with Adobe's Director and Flash applications, Max/MSP, Processing, SC3, and PureData, it's easier than ever to get "real-world" sensing into your projects. Think of it as "Arduino Light'.
MUIO: "Programming-Free" Microcontrollers - Link
Posted by Jonah Brucker-Cohen |
Sep 15, 2007 01:00 AM
Electronics |
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| Comments (3)
September 14, 2007
Stitchable Arduino patches
We've mentioned Leah Buechley on the blog before. She's a Ph.D. student in Computer Science at the University of Colorado who does some really innovative things with soft circuits, LED clothing, and other geek couture. She writes of her most recent projects, the LilyPad: e-textile construction kit version 2.0
There is no reason for fabric circuits to mimic the look of traditional PCBs. My version 2.0 construction kit explores a new aesthetic for electronics.The e-textile construction kit was designed to empower novices to work with electronic textiles. Using the kit, you can build your own soft interactive clothing. The patches shown here, built with my iron-on circuit technique, are small, sewable computer chips. Each patch functions as a stitchable Arduino.
LilyPad: e-textile construction kit version 2.0 - Link [Thanks, Thomas!]
Related:
Posted by Gareth Branwyn |
Sep 14, 2007 05:00 AM
Arduino, Arts, Crafts, DIY Projects, Electronics |
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| Comments (1)
Introducing the robo-cane
The first thing I thought, seeing this project which turns an iRobot Create into a robotic cane for the blind, is that it's a prime example of "inappropriate" technology. If you've ever seen a blind person use a cane, you can tell it's this incredibly sensitive and nimble feeler, an extension of the person's arm and their "touch sensors." So the idea of putting a slow, relatively dumb robot on the end of that "feeler" doesn't make a whole lot of sense to me. But nonetheless, this is a really cool, ambitious build, with a lot of interesting tech at work, such as the design for the speed detection system (the cane slides along a rail on top of the Create and a slide potentiometer reads the speed of the cane's movement and changes the speed of the bot accordingly). Not sure about the application as designed, but who knows where it could lead? The idea of a "smart cane" certainly has legs (so to speak).
This was any entry in the Instrucatbles iRobot Create Challenge. The contest deadline was Sept 9, but the winners have not yet been announced.
eyeRobot - The Robotic White Cane - Link
Posted by Gareth Branwyn |
Sep 14, 2007 04:00 AM
DIY Projects, Electronics, Instructables, Robotics |
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| Comments (2)
September 13, 2007
Solar-power for PIC-based gaming system
A solar-powered game "system" using a PIC 12f683 chip and a Nokia 3310 LCD. (No info given on the cell itself.)
Solar POWER! For my PIC and Nokia stuff - [via] Link
3310 Nokia LCD & PIC 12f683 - Link
Posted by Gareth Branwyn |
Sep 13, 2007 06:00 PM
DIY Projects, Electronics, Gaming |
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| Comments (1)
Homemade flatbed printer
From the YouTube description:
First step towards a homemade 3D printer. This is the insides of an HP1360, the paper feed encoder is being used to drive a stepper motor to move the gantry. The encoder is decoded and divided by a parallax propeller microcontroller that also detects the paper feed and ignores other paper feed motor rotations. The gantry is moved by a cable drive to be replaced by a belt.
Homemade flatbed printer - [via] Link
Posted by Gareth Branwyn |
Sep 13, 2007 04:00 PM
Computers, DIY Projects, Electronics |
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| Comments (5)
Atari tube
Gorgeous Atari "pub console" in a tube! Link.
More:
Atari Punk Console schematics - Link.
Atari punk console inside a old Ericsson telephone - Link.
Posted by Phillip Torrone |
Sep 13, 2007 03:00 PM
Electronics, Music |
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| Comments (1)
Fruit controlled music thing
Raphael wanted us to know that it's official. France is our ally, and we can learn from them. Because -- circuit bent twinkly noisy *fruit controlled* thing.
Posted by Phillip Torrone |
Sep 13, 2007 11:00 AM
Electronics, Music |
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| Comments (1)
WineM @ NextFest
I really like todbot's projects, here's one he's working on now called WineM -
WineM solves the problem of remembering all the information about the wines in a large wine rack, cellar or cabinet, or searching through that data. This smart wine rack makes that information always accessible and updatable.todbot blog » Blog Archive » WineM prototype at NextFest - Link.
Posted by Phillip Torrone |
Sep 13, 2007 03:00 AM
Arts, Electronics |
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| Comments (0)
AVR countdown timer
Dim writes -
This Timer was originally build for my PCB exposure box but it can be used for other purposes. You can set the time between 1 and 90 minutes by pressing the up or down switches. The countdown starts by pressing the on/off switch. By pressing this switch again you can interrupt the prosess at any time you want. After the time elapsed the timer gives an alarm sounding the end of the prosess and disconnects the load.AVR countdown timer - [via] Link.By pressing the on/off switch you reset the timer and it's ready for another lap.The 2X16 Lcd display informs you about the remaining time during countdown and other informations about the operation of the timer. I used an AT90S2313 in my first prototype but then i change to ATTINY2313.
Posted by Phillip Torrone |
Sep 13, 2007 02:00 AM
DIY Projects, Electronics |
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| Comments (0)
Eyelash switch: cyborg-style human interface device
Jason writes -
With some conductive fabric and spirit gum, you can make a simple binary switch that attaches to your eyelids. Andrew Schneider used some of these to make a polaroid camera that takes a snapshot when you blink.Eyelash switch: cyborg-style human interface device - [via] Link.When I first saw these, I was reminded of cyborgs in television and film and how they typically exhibit facial twitches when receiving data or jacking in to the network brain. I always thought the apparent "glitch" was sort of a stupid film device, but mabe it's not that far from the future truth. Left wink, change music track. Right wink, shoot photo with the camera tilak in your forehead. Triple-blink, stimulate adrenal gland to release epinephrine. Eyes closed for one minute, dose of melatonin.
Posted by Phillip Torrone |
Sep 13, 2007 01:00 AM
Arts, DIY Projects, Electronics |
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| Comments (2)
September 12, 2007
Raising an old OnStar GPS unit from the dead
In this PopSci "Void Your Warranty" piece, MAKE contributing writer Dave Prochnow shows you how to use an old OnStar GPS unit on a laptop computer with free software, no subscription required.
Raising GPS from the Dead - Link
Related:
Posted by Gareth Branwyn |
Sep 12, 2007 08:00 PM
DIY Projects, Electronics, GPS, Mobile |
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| Comments (7)
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