Tape Archives

Simple UV Counterfeit-Money Detector

This simple project uses ultraviolet light to detect counterfeit $5, $10, $20, $50 and $100 US bills.

Hands-Free Mouse

Make a mouse for your computer that uses only an Arduino, an accelerometer, and your head movement to move and click.

This guide will teach you how to build and program your own accelerometer controlled maze game. It does assume a basic knowledge of soldering, breadboards, and programming in Arduino. by the end of this guide you should be able to make your own maze by editing the code and then solve it by tilting your […]

Dodecahedron Speaker for Desktop 3D Printers

At normal listening distances, an array of twelve speakers arranged on the faces of a dodecahedron is a very good approximation of a point sound source, and the sound waves it produces are very close to perfectly spherical. A dodecahedron speaker can be a useful tool in acoustics research, and is definitely a fun toy […]

Chess/Checker Board from Tile Remnants

My kids love to play chess/checkers with their colorful new boards made from remnant 12″x12″ marble! Duct tape is an amazing material. We made it easy to work with by adding aluminum foil before the cutting process. Spare coins can serve as checkers or chessboard pieces!

EZ-EL Wire Bicycle

Monkey Couch Guardian

My cats like to jump on furniture and shed their fur, which ends up on my clothes. To stop them, I’m using a Monkey Couch Guardian. I made it from one of those old-fashioned cymbal-banging toy monkeys, modified with an inexpensive Arduino microcontroller and a proximity sensor. Now when a cat jumps on a table, […]

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