Circuitry Hacks

Laser Sundial Clock Project

Laser Sundial Clock Project

Alessandro from 5Volt.eu has made this real simple and cool clock . The Laser Sundial Clock Project uses a Atmel microcontroller to move a servo with a line laser connected to it. The result is a single line that can simply represent the time on the...
DIY Wrist-Mounted Flamethrower

DIY Wrist-Mounted Flamethrower

The Prometheus is what you might call the start of the "next-gen" level of do-it-yourself wrist-mounted...
Fantastic Interview with the Inventor of Pong

Fantastic Interview with the Inventor of Pong

Back in the late 60s, German-born gadgeteer Ralph Baer began inventing what later became known as video games. Over the ensuing decades he would develop Pong, the rifle you could point at the screen that was the precursor to the Duck Hunt shotgun,...
Dirt Simple Wi-Fi Signal Booster

Dirt Simple Wi-Fi Signal Booster

Learn how to make a dirt simple (basically free) wifi antenna booster using tin foil.  Yes, it sounds crazy, but it actually works and significantly increases your wifi signal in the dead zones of your house. The video above is pretty...
Location-Based Game “Urban Defender”

Location-Based Game “Urban Defender”

By using an Arduino, GPS, and an accelerometer, this group put together the “Urban Defender” – A hyper-local geolocation based game which allows users to “claim” various districts of a city by throwing the ball against a wall to claim...
Epic DIY Halloween Costume: Ghost Busters

Epic DIY Halloween Costume: Ghost Busters

For your DIY Halloween costume this year, Learn how to make your own Ghostbusters Proton Pack equipt with red and green lasers (above).  There is a full tutorial on how to build your own along with a detailed photogallery of the proton pack. ...
Making of a Solar Charging Bag

Making of a Solar Charging Bag

Never worry about a dead cell phone again! Charge your portable electronics by harnessing the power of the...
RGB Computer Controlled LED Bottle Wall

RGB Computer Controlled LED Bottle Wall

What is it about the combination of color and light which makes us automatically drawn to it ? Quite appropriately the video demo of Alex Beim's LED bottle wall project is without sound. It’s all visual illumination as we watch 253 bottles...
Make your Own 21st Century Sundial

Make your Own 21st Century Sundial

If you thought sundials were a thing of the past, think again. The only difference is that this time around things are much more high tech. Over at 5volt there is a fantastic tutorial demonstrating how to build your own laser sundial. The great...
Build a Giant VU Meter Using Light Bulbs

Build a Giant VU Meter Using Light Bulbs

Basically, a VU Meter measures loudness (volume units) of an audio signal. But this blinking VU meter project catches the eye more than the ear. The construction of the VU meter using 12 flashing bulbs is relatively simple. At the heart is a 12...