This project uses an ATmega16 and a radio control kit to get the job done. You can control up to four servo(motors) with a simple push of a button. The system can also control a servo with a photocell, for example if you enter its range it will turn on a light. Of-course there are a few commercial alternatives but the price is quite high and many of them are not a versatile as this one.
April 26th, 2008