This week on Let's Make It we have an Arduino control a servo like you find in model airplanes and cars. In the process of showing you how to control a servo we also introduce the concept of Pulse Width Modulation (PWM) and Pulse Position Modulation (PPM).
For Show Notes go to: http://tech-zen.tv/episodes/shows/make-it-work/episodes/controlling-a-servo-with-an-adruino-episode-12