I got this cute little walker by following these instructions. It's a simple 3 servo robot controled by a light sensor, mapping light intensity with speed. To avoid beating his face against the wall Jean uses an ultrasonic sensor which also gives him a fancy big-eye look. So smart uh? :) The code doesn't differ much from that one mentioned above. I've just taken these pictures before he gets disassembled, after all I can't afford a microcontroller for each fun I have on this arduino-world thing.