Butt-Crack Detector: Plumbers Are So Hot These Days

Instructables posted a guide to creating a plumbers'-crack detector, using a LilyPad Arduino » 10/25/08 9:00am 10/25/08 9:00am controller, a vibrating motor, and a photoresistor to measure how much light is beaming into your crack. When the photoresistor comes uncovered, the motor starts to vibrate, letting you know that your "coin slot" is exposed and…