Hello! I got to Xmas a robot and I wanted to use my lightresistor for doing something. One idea was to use it to controll the brightness of a diode. Have you any other IDEAS how to use it instead? (I just built on the robot and distance measure sensor. Please write me suggestions! Thank you, Blackfighter_05 :)

Have a look how optical car rain sensors work ( used to put the wipers on) - they use a change in reflection properties to sense, you might be able to make a rain sensor Google will help