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Archive: Electronics
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November 26, 2007
Understanding Arduino Interrupts
uC Hobby has a piece up on the use of interrupt routines in Ardunio programming:
Often when working on microcontroller projects you need a background function to run at regular intervals. This is often done by setting up a hardware timer to generate an interrupt. The interrupt triggers an Interrupt Service Routine (ISR) to handle the periodic interrupt. In this article I describe setting up the 8-Bit Timer2 to generate interrupts on an Arduino ATMega168. I walk through steps required for setup and inside the ISR function.
Arduino Interrupts - Link
Posted by Gareth Branwyn |
Nov 26, 2007 01:21 PM
Arduino, Computers, Electronics |
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| Comments (0)
Nixie wall clock
Nifty wall-mounted nixie tube clock posted to the MAKE Flickr Pool.
Nixie Clock III - Link
Posted by Gareth Branwyn |
Nov 26, 2007 09:00 AM
Electronics, Retro |
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| Comments (1)
Charming components
I love jewelry and art objects made out of electronic components. Here are some really sweet robot charms made mainly from capacitors and resistors.
21st Century Folk-Art by oBVIoUS FRoNT - [via] Link
Posted by Gareth Branwyn |
Nov 26, 2007 08:00 AM
Arts, Crafts, Electronics |
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| Comments (6)
Motion-triggered paintball gun
Rather roughshod tutorial (e.g. I think he gets his wires crossed) on adding a motion detector trigger to a paintball gun using a BASIC Stamp HomeWork board, a laser pointer and a servo.
How to build motion detect to fire a paintball gun - [via] Link
Posted by Gareth Branwyn |
Nov 26, 2007 07:00 AM
DIY Projects, Electronics |
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| Comments (3)
November 24, 2007
Track fingers with the Wiimote
Johnny Lee at Carnegie Mellon University figured out how to use the Wiimote's infrared camera to track his fingers, Minority Report style. Link.
(Thanks, Matt!)
Posted by Becky Stern |
Nov 24, 2007 06:00 AM
DIY Projects, Electronics, Gaming |
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| Comments (3)
November 21, 2007
First-Person View hobby site
In response to the virtual pilot video item we posted several weeks back, a reader sent a link to this site, a portal related to "video piloting in the newly growing and exciting hobby of First Person View (FPV or RPV) that has become popular with Radio Controlled airplanes, R/C helicopters, cars and boats." Who knew?
FPV Video Home Page - Link
Related:
- Virtual pilot video rig for R/C plane - Link
Posted by Gareth Branwyn |
Nov 21, 2007 08:00 PM
Electronics, Flying, Toys and Games |
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| Comments (2)
Mooninite-inspired LED projects
Carl Cartagena sent us links to a series of LED light-art pieces he did, inspired by the Adult Swim Mooninite signs that triggered terrorist hysteria in Boston earlier this year. I wish he hadn't splashed a URL watermark across the middle of them. Really annoying. And looking at these time-lapse vids, with a clock showing the time flying by, you realize how tedious a project with this many diodes actually is. He says the results were worth the effort, tho. He gave them away as gifts. You can see the others from the YouTube link below. Or, if you want to go to his website, his address is... crap, I can't remember it...
The turnip project - Link
Posted by Gareth Branwyn |
Nov 21, 2007 06:00 PM
Electronics |
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| Comments (4)
November 20, 2007
"Antenna Shooter!"
Check out this awesome antenna wire shooter made from a fishing reel and sling shot. If you're like me, you'll now spend the rest of the night singing "antenna shooter!" to the tune of the "salad shooter" jingle. Okay yeah, that's just me.
Antenna Shooter - Link
Posted by Gareth Branwyn |
Nov 20, 2007 07:00 PM
DIY Projects, Electronics |
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| Comments (1)
Ultra-tight freeform circuitry
Freeforming a circuit that's this highly populated gives me hives (and tests my patience), but if you have a good magnifying light, a steady hand, and take your time, you can work a lot of discrete components into a very small space. Just don't expect to do much troubleshooting/changing when you're done.
Fitting a circuit into a small space - [via] Link
Posted by Gareth Branwyn |
Nov 20, 2007 04:00 PM
Electronics |
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| Comments (3)
MIDI foot
Designed by Paul Sobczak, Peter Arendt, and James Pachan -- The Midi Foot is a foot controlled switch box that interfaces with a computer via Midi (Musical Instrument Digital Interface) - Link.
Posted by Phillip Torrone |
Nov 20, 2007 11:00 AM
DIY Projects, Electronics, Music |
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| Comments (0)
November 19, 2007
Buglabs HARDWARE PHOTOS!
I sent our MAKE video intern over to shoot some photos of the Buglabs hardware, come and get it! More here at Eric's Flickr set - Link.
Posted by Phillip Torrone |
Nov 19, 2007 06:03 PM
Electronics |
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LED menorah kit
Windell at Evil Mad Scientist writes:
Hanukkah in particular has been a festival of lights for more than a dozen centuries longer than there have been lights on Christmas trees. History notwithstanding, Hanukkah still lags behind Christmas in the transition from traditional light sources like candles towards microcontroller driven arrays of LEDs. While that may be simply due to the relative flammability of dry pine trees versus that of metal menorahs, the irony is that Hanukkah-- unlike Christmas-- actually requires observers to light up specific lights in a specific order, which is exactly the sort of thing that you want a microcontroller for.Get the instructions for your very own LED mini menorah - Link.
Posted by Becky Stern |
Nov 19, 2007 01:50 PM
DIY Projects, Electronics, Holiday projects, Open source hardware |
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| Comments (4)
November 15, 2007
Light-up Guitar Hero controller mod
Instructables user fungus amungus made this awesome Guitar Hero controller mod with light-up buttons. - Link.
Posted by Becky Stern |
Nov 15, 2007 03:55 PM
DIY Projects, Electronics, Gaming, Instructables |
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| Comments (0)
Video: Dave Clausen and his LED oscilloscope project
A few weeks ago I gave Dave an LED matrix that I had soldered up and he made the coolest thing with it! Check out his LED oscilloscope project! - Link
Posted by Bre Pettis |
Nov 15, 2007 02:08 PM
Electronics |
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| Comments (10)
Microcontroller design final projects from Cornell University
Jason Striegel @ Hackzine tells us about the Cornell Microcontroller Design class and their final projects this semester:
Pictured above is David Drew and Joanna Dai's autonomous neural robot, which is able to learn to navigate an enclosed space at the fastest possible speed without bumping into things. Another project, Guitar Legend Maker by Thidanun Saensuksopa and John Del Gaizo, is a real-instrument version of Guitar Hero. Instead of monkeying around with a 5 button faux guitar, you play a real instrument and the system detects the tone actually played, deciding whether or not it matches the riff that is being output.Cornell's microcontroller projects at Hackzine - Link.
What's really killer about all of these projects is that the are thoroughly documented, with full source, circuit diagrams, and a discussion of design decisions. If anything inspires you, you don't have to recreate the wheel to start working on your own ideas. ...And with the diversity and number of projects on the site, somthing's bound to inspire you.
Posted by Becky Stern |
Nov 15, 2007 12:31 PM
Computers, Electronics, Robotics |
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| Comments (1)
Simple PIC VGA tester
Chris made this excellent tutorial on creating a VGA test box with a PIC microcontroller. He writes:
For quite some time I've been wanting to create a device that outputs VGA signals. My main goal was of course to be able to display whatever I wanted on the monitor I was currently using. The goal of this project is to create a device that is capable of outputing VGA signals to a CRT monitor inorder to display figures, text and characters. This will be done using a Microchip PIC microcontroller at 4 MHz clock speed. The programming required to achieve the VGA timing signals must be done in low level assembly because of the high level of precision that is necessary. The hardware assembly is just basic buttons, switches & wire that you can purchase from local electronics stores.PIC VGA test box tutorial - [via] Link.
Posted by Becky Stern |
Nov 15, 2007 06:00 AM
DIY Projects, Electronics, Something I want to learn to do... |
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Electronic prototypes
TeleChrome writes in with a Flickized iron transfer how-to on making your own PCBs -
How to make professional-quality printed circuit boards right in your kitchen sink: This remarkable technique uses an ordinary laser printer to transfer a toner resist mask onto a piece of plain copper clad.Electronic prototypes - Link.
Posted by Phillip Torrone |
Nov 15, 2007 12:00 AM
DIY Projects, Electronics |
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| Comments (3)
November 14, 2007
DIY Blu-Ray Laser Phaser!
Kipkay writes -
First time in the world a blu-ray laser from a Playstation 3 has been installed in a Star Trek Phaser! Build one yourself for around $100. I "Boldy go where no man has gone before"! Watch the video and then follow the Steps to build your own!DIY Blu-Ray Laser Phaser! - [via] Link.
Related:
HOW TO - Make a DVD burner into a High-Powered laser - Link.
Laser flashlight -Here's how to turn a MiniMag flashlight into a powerful laser pointer using a DVD player laser - Link.
From the pages of MAKE: Mini High-Power Laser. MAKE 10 - page 142. Liberate a 200mW laser from a DVD burner. Subscribers--read this article now in your digital edition - Link.
Posted by Phillip Torrone |
Nov 14, 2007 10:00 PM
DIY Projects, Electronics |
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| Comments (3)
Easily add flash drive mp3 audio playback with the VMUSIC module
Looking to embed mp3 audio into a microcontroller project? I just came across this unit and would be curious to see how it works:
VMUSIC is a product that not only lets you add USB Flash drive interfacing to your product but allows you to play back MP3 and other popular digital music formats direct from a USB Flash drive. Extensions to the VDAP command set allow you to play a selected file as well as control the volume, balance, etc. of the sound channel and monitor the status of the file being played.VMUSIC module lets you embed mp3 audio playback via USB flash drive - Link. (Thanks, Byron!)
Posted by Becky Stern |
Nov 14, 2007 07:00 PM
Electronics |
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| Comments (5)
Phoenix DIY meeting recap
Last night was the second meeting of the Phoenix DIY, and we had three fantastic presentations from Chris Coleman, Mark Rehorst, and Kelly Bedson. Some pictures:
Second Phoenix DIY meeting with a recumbent carbon fiber bike, a self-balancing skateboard, and an origami workshop - Link.
Posted by Becky Stern |
Nov 14, 2007 06:00 AM
Arts, DIY Projects, Electronics, Events, Makers |
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| Comments (0)
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