(Archive of: http://www.thing-a-day2.com/2008/02/03/thing-3-tiny45-emulation-using-the-arduino/) A while ago I started working on a flapping wing mechanism using voice coils taken our of hard drives. To drive them I built a set of boards based on the Atmel tiny45. After getting the basic motion down I wanted to use a light sensor to detect motion so that they… Read more »