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Archive: Electronics
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February 7, 2008
HOW TO - Make a "Witness camera"
Alberto writes -
The Witness Camera is an automated, self-recording surveillance camera, that uses a gigabyte-class flash card as recording media. I designed the Witnesscam because available surveillance solutions were too expensive or impractical for home use. I built the system from a VGA CMOS colour camera, a passive-infrared (PIR) movement sensor, an ATmega32 processor, and a 1GB SD-card. The prototype looks like an ordinary alarm detector. But when it detects people moving around, it silently starts recording.HOW TO - Make a "Witness camera", thanks Nutchip! - Link.
Posted by Phillip Torrone |
Feb 7, 2008 08:00 AM
DIY Projects, Electronics, Imaging |
Permalink
| Comments (12)
Bronome - A RGB monome-like project
There seems to be a few people doing RGB monome-like projects, Brian writes in with his...
The Bronome project has been designed to address some of my personal performance audio needs. I saw a need for something more than just a USB interface something which could also act as a hardware midi controller. In that respect the Bronome is a brother to many other projects such as the Monome, Tonori-on, and MidiBox. It borrows concepts and ideas from all to make a unique interface onto its own. Although the initial facade is very much like the minimalist Monome 40h, the differences are in its use of light to convey meaning. Through visual means the interface of the Bronome can mutate or transform into a multitude of utilities, keyboard, sequencer, or display. The configurations are endless.BDIS_LAB - Link.
Related:
Full-colour RGB monome clone (Trinome?) - Link.
More:
Hackable, playable LED/pad music interface - the monome - Link.
Posted by Phillip Torrone |
Feb 7, 2008 07:00 AM
DIY Projects, Electronics, Music |
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| Comments (2)
AVR Scope terminal - Oscilloscope terminal!
Jan writes in with a free app for Dutchtronix AVR Oscilloscope Clock owners (I have one, it's great). He writes -
This is an Open Source Application which allows you to use your Oscilloscope as a text based display device. The code is currently targetted for the Dutchtronix AVR Oscilloscope Clock hardware but could be easily ported to an alternate platform consisting of an AVR and some form of a DAC. The Scope Terminal displays 12 lines of 20 characters each. There is also a line showing the current time (it's a clock hardware after all). Configuration is possible using a "Command Mode" where you can use a terminal (usually a PC) to set options (currently Time Change and Baudrate change are supported). This alternate application can be downloaded to the AVR Oscilloscope Clock using the built-in bootloader; no AVR programmer required. Full Source Code is available on the website.AVR Scope terminal - Oscilloscope terminal! - Link.
Related:
Oscilloscope Clock. V3.0 firmware of the Dutchtronix AVR Oscilloscope Clock has been released. The clock has enhanced graphics and many new features like Date display and set, Roman Numerals Dial, 24 hr Dial, Binary Clock display, hexadecimal numeric time, fractional seconds display, Automatic Daylight Saving Time (US and EU) and GPS NMEA input: connect the clock to the serial port of GPS device and you'll never have to set the time or day again. - Link & my build here.
Posted by Phillip Torrone |
Feb 7, 2008 06:00 AM
DIY Projects, Electronics, Kits |
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| Comments (1)
Hack a $20 DVD player into an NTSC display
Here's a quick how-to on creating a composite video display from a cheap Cyberhome DVD player. There's even instructions on where to tap the circuit for audio playback. [via]-Link
Too bad some of the PCB images are so blurry - if only the author hacked his camera into taking macro shots . . .
Do-It-Yourself Macro lens -Link
Posted by Collin Cunningham |
Feb 7, 2008 05:00 AM
DIY Projects, Electronics, Portable Audio and Video |
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| Comments (1)
The BrakeDrum
This cool musical instrument is based on the circuit bending 5 toys, and a trigger system made from mouse pads and sheet metal. The website has audio samples, electrical diagrams, and pictures of the whole process. If you want to try this one yourself, be warned, this is not your every day circuit bending. - Link
Related:
Drum Trigger - Link
Posted by Marc de Vinck |
Feb 7, 2008 03:00 AM
Electronics, Music |
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| Comments (0)
Real world Mario
Keith Lam (a.k.a. The Demos) created a real life Mario game installation called "Moving Mario". The video shows the artwork and describes a lot about the creation process. It would have been a lot easier to use parallax scrolling of the background, but the point is you actually MOVE Mario, not the background...and a moving TV is so much cooler. Watch the video for the build process and an explanation. - Link
Posted by Marc de Vinck |
Feb 7, 2008 02:00 AM
Arduino, Arts, Electronics, Gaming, Toys and Games |
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| Comments (2)
HOW TO - Make a Bluetooth XMPP doorbell (from a mouse)
Matt writes -
Well, you know you have one of those really weird conversations along the lines of...HOW TO - Make a Bluetooth XMPP doorbell (from a mouse), thanks Darco! Link.“We need a doorbell!”
“What about a wireless mouse will that work?”
You know it won’t end well. This ended with the destruction of a bluetooth keyboard, a trip to maplins and the creation of a Python based doorbell. Here’s how we did it...
Posted by Phillip Torrone |
Feb 7, 2008 12:00 AM
DIY Projects, Electronics |
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| Comments (3)
February 6, 2008
Custom Harmonica Mic
From the MAKE Flickr pool:
Member Filmosity built this microphone to amplify a blues harp. He also made a minty amp to go with it - cool idea for portable playing.
I made this harmonica mic from scrounged pieces of other items. I got a $20 dynamic mic from Radio Shack and used the element and the windscreen. Also got a potentiometer (volume control) and a mono phono jack. Put them together using the bell from a garden hose sprayer ($8), part of the column from the mic, and a Listerine bottle cap. The mic fits nicely in the hand with a harp in my hand. Not too heavy, not too light. Unfortunately, it seems I wired the potentiometer incorrectly, so it doesn't actually do anything. On version 2.0 I'll wire the pot correctly, and use 2 listerine caps for extra room.
Don't sweat that potentiometer, mistakes are still the best way to learn! -Link
Related:
Build an I-Mic -Link
Posted by Collin Cunningham |
Feb 6, 2008 01:00 PM
DIY Projects, Electronics, Music |
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| Comments (0)
Home lighting automation with DMX
This home automator used DMX (the popular theater lighting protocol) to automate all of the lights in his home.
Automated Lighting - [via] Link
Related:
Posted by Gareth Branwyn |
Feb 6, 2008 12:00 PM
DIY Projects, Electronics |
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| Comments (2)
The DIY "net data meter"
From the pages of MAKE - The Net Data Meter - Antique voltmeter displays current air quality from the web. In DIY: Circuits from MAKE: 11: Alt Vehicles page 133 - Link.
Posted by Phillip Torrone |
Feb 6, 2008 10:00 AM
Computers, DIY Projects, Electronics, Gadgets |
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| Comments (0)
HOW TO - Build a USB Guitar
Bill writes -
Why would you want a USB port in an electric guitar? The answer is simple: convenience. By putting a small USB port and audio codec in a guitar, you're adding an extra sound board. So when you record, your guitar is digitized locally and the signal is transmitted to your computer over a USB cable. The guitar retains all its standard analog capabilities but outputs to USB as well. Now you can rock steady until your hard drive is full. Here's how to do it.How to Build a USB Guitar - Expert Help by PC Magazine - Link.
Posted by Phillip Torrone |
Feb 6, 2008 09:30 AM
DIY Projects, Electronics, Music |
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| Comments (0)
DIY Electronic drum set with controller
Insomartin writes -
Here is a e-drum set just for a game called DTX mania and Drummidi. and a drum controller for FL. i don't want to purchase a module since i'm still starting to play my game and study drums. many play this game but don't have the controller to practice at home. or just PLAY. i really wish everyone could make one it's a great percussion project, it might take you 3 days to construct and make it work. but about a month to configure and make the drum set better and better. it is still a work in progress but it's a playable prototype.DIY Electronic drum set with controller - Link.
Posted by Phillip Torrone |
Feb 6, 2008 09:00 AM
DIY Projects, Electronics, Music |
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| Comments (0)
HOW TO - Make a Rechargeable, pocket-sized 5V power supply
Dave writes -
Sure power supply projects aren't that sexy; but they are, generally speaking, the foundation for every electronics project. The voltage output for this project is 5VDC, and a practical output that can be applied to a wide variety of digital components. Even better, this power supply has a 2-pin plug that can be quickly and easily snapped into a common 2-pin header for a reliable and solid power connection. Add a pushbutton ON-OFF switch and a USB rechargeable interface and you have a versatile power supply that can be slipped inside your pocket.HOW TO - Make a Rechargeable, pocket-sized 5V power supply - Link.
Posted by Phillip Torrone |
Feb 6, 2008 06:00 AM
DIY Projects, Electronics |
Permalink
| Comments (1)
Mac AVR install simplified
Perhaps you've considered dabbling in AVR programming on OS X, maybe even sharpen up on Unix syntax in the process. Unfortunately, installing the Mac/AVR toolchain can be a very frustrating experience to the uninitiated. The process involves locating and installing countless interdependent apps, tools, and libraries. But just before giving in and trying another OS - help arrives! Check out AVR MacPack. This software package installs via the standard Mac method, just a few clicks and you've got all the necessary components for compiling and programming. -Link
AVR MacPack overview:
All for the low low price of - free.
Related:
Macpack -Link
Programming AVR MCUs on a Mac -Link
Posted by Collin Cunningham |
Feb 6, 2008 04:00 AM
Computers, Electronics |
Permalink
| Comments (3)
Build your own effects pedal
"Build Your Own Clone" has a ton of different DIY guitar FX pedals that are all ready to be soldered up and plugged in. Most of the pedal kit links feature a video so you can see and hear the pedal in action. For those of you out there that are a little fearful of soldering, they even offer a "Confidence Booster" kit for free. Go ahead and give it a try! - Link
Related:
- Soldering Tutorial - Make Video Podcast - Link
Posted by Marc de Vinck |
Feb 6, 2008 03:00 AM
DIY Projects, Electronics, Music |
Permalink
| Comments (7)
Parallax Propeller Contest
Parallax just announced their 2008 Propeller design contest. First prize is $2000, and I use that dollar sign loosely. In reality it is $2000 or the equivalent in Parallax products. Either way, I would be VERY happy. If you make something cool, don't forget to post it in the MAKE flickr pool! - Link
Posted by Marc de Vinck |
Feb 6, 2008 01:00 AM
Announcements, Electronics |
Permalink
| Comments (0)
February 5, 2008
Real life email flag
Matt Mets's Thing-a-Day projects are getting ridiculous:
Tonight's project is a physical flag that attaches to my computer and goes up when I have new mail. First, I found biff, which is an extension to Thunderbird that proves a socket interface to poll for new mail status. Then, I wrote a little Python application to continuously poll the status and update the flag as necessary. Since I already had one written and didn't feel like looking into any libraries, I used a C program to turn pins on the parallel port on and off to trigger the hardware. In a final bit of ridiculousness, I actually used some 555 timers to make an H-bridge to control the motor (don't try that at home).
He released all the code and schematics. - Link.
Posted by Becky Stern |
Feb 5, 2008 07:00 PM
Computers, DIY Projects, Electronics |
Permalink
| Comments (7)
Antique brain wave synchronizer
One of the first mind machines ever sold commercially, this metal strobe box weighs in at a substantial 15 pounds - a bit heavier than the LED entrainment glasses used today.
One of the first commercially available mind machines came some time later in the late 1950's. Its construction was inspired by reports from radar operators aboard submarines, who found themselves falling into deep, relaxed, trance-like states after staring at flickering radar screens for extended periods. Dr. Sidney Schneider was one of the researchers to analyze these effects, and he went on to create the "Brain Wave Synchronizer".
Hmmmm . . . must . . . re . . make.
Antique mind machines on Mind Update -Link
Related:
HOW TO - Make a mind control hypnosis dream machine -Link
Posted by Collin Cunningham |
Feb 5, 2008 06:02 AM
Electronics, Gadgets |
Permalink
| Comments (3)
DIY - USB analog gauges
This is a nice write-up on interfacing analog meters via USB. The project is fairly complicated, and you have to have good soldering skills to make it all work. Don't forget, an Arduino can do this kind of thing, and it might be a little easier too!
In a sort of retro mash-up, we'll make a USB device that displays PC status info on these gauges. The gauges can show CPU and memory usage, processor voltage -- just about any numerical data typically displayed on small HD44780 based LCD character displays commonly used in PC case mods.
Driving an analog gauge - [via] Link
Related:
Homemade analog gauge controller for PCs - Link
Posted by Marc de Vinck |
Feb 5, 2008 02:00 AM
Arduino, Computers, DIY Projects, Electronics |
Permalink
| Comments (7)
HOW TO - Make a remote telephone ring indicator
The latest "Gadget Freak" from design news shows you how to make a remove telephone ringing indicator -
You leave your cubicle to get a cup of coffee. You get a few feet and hear a phone ring. Is it yours? You dash back and nope, not yours. You head back for the coffee and hear a phone ring again... Alan Vogel has a gadget that solves that aggravating problem. His Remote Telephone Indicator turns on a light above the cubicle when your phone is the one ringing. While employers may not look kindly on opening up phones and adding wires, the gadget is relatively simple. It senses when your phone is ringing and sends a signal to the light posted high above your cubicle. Even from a distance, you can see that your cubicle’s phone is the one that’s ringing.HOW TO - Make a remote telephone ring indicator - Link.
Posted by Phillip Torrone |
Feb 5, 2008 01:30 AM
DIY Projects, Electronics |
Permalink
| Comments (1)
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