My three solar robots: a Solar Roller, a Photovore, and a Photopopper, all BEAM

All three bots are based on the basic solar engine. One is a SunEater II and simply stores solar energy till it can pulse a motor. The Photovore and photopopper both use a pair of solar engines attached to photodiodes. The solar engine with the highest amount of light on the photodiode triggers. This makes the robot actualy seek out light!

I'd recomend going to Solarbotics. They have kits, and they are very excelent for learning basic BEAM robotics. (I will include schematics and more details about my robots later).