LED Sound Meter
In this guide you will learn to created an array of leds that visually represent the volume picked up by an electret microphone. You will learn how to wire 3...
Posted by Sam Berg
Capacitor Projects
Keyless Lock Box
A wave of your finger opens this magic treasure chest.
Posted by Gordon McComb
Categories: Electronics, Arduino | 4 Comments
World Control Panel
Global domination for the young evil genius.
Posted by Steve Lodefink
Categories: Electronics, Fun & Games, Kids & Family | 1 Comment
MonoBox Powered Speaker
MonoBox is a small, inexpensive powered speaker that amplifies the output of your headphone music player. It’s little but it’s loud! All the circuit parts are available from RadioShack. The...
Posted by Ross Hershberger
Categories: Electronics, Music | 69 Comments
IR Jammer Kit
These directions were adapted from alan-parekh.com. The IR Jammer project is microcontroller-based; what this means is there is a small self-contained computer that controls the unit. The IR Jammer will...
Posted by Alan Parekh
Categories: Computers & Mobile, Fun & Games | 2 Comments
Homemade Home Security
Build a 4-camera surveillance system and watch from any web browser.
Posted by David Bodnar
Categories: Fun & Games, Home | No Comments
Geiger Counter
This DIY Geiger counter clicks and flashes an LED each time it detects a radioactive particle. It works with most common Geiger–Müller tubes, and easily connects to radiation rate meters,...
Posted by John Iovine
Categories: Science | No Comments
Water Leak Detector
The average life expectancy of a hot water heater is about 10 years, so it’s not a question of if it will leak — it’s simply a matter of when....
Posted by Jeff Tregre
Categories: Hacks, Electronics, Home | No Comments
PS/2/You LED Sign
It all started with a small LCD salvaged from an old printer. I recruited my code-savvy older brother, Adam, and we soon had the LCD displaying text from an Arduino...
Posted by Immanuel McKenty
Categories: Electronics | 7 Comments
WireFinder 9000
By Christie, Jim, John, and Terry Noe Our dog, Maggie, loves to run around in our big yard. But how do we fence her in? Building a 500-foot fence is...
Posted by Terry Noe
Categories: Electronics, Hacks, Home | No Comments
Beating Heart Pendant
While reading through Charles Platt’s excellent book Make: Electronics, I came across this nice little circuit for making a gentle pulsing LED. I was struck by the “humanness” of the...
Posted by Quinn Dunki
Categories: Electronics | No Comments
Rock ‘n’ Roll Speakers
Whether you’re at a Bangkok hostel or backpacking in Goa, you can rock out to your favorite tunes with these portable Rock ’n’ Roll Speakers, a set of customizable, low-fi...
Posted by Syuzi Pakhchyan
Categories: Electronics, Craft, Home, Music | 1 Comment
