Here’s a fun project my class partner and I created in January of 2012.
We basically mounted a laser to the servos. By doing so, we could use the laser to physically see where the servos were moving. We then created a manual system to allow us to aim the laser using a coordinate system based on x, y input that allows the user to manually input points to determine the laser position. Later on in the project we decided we wanted to make the project a bit more interesting by replacing the original laser diode with a high powered laser diode from an old DVD burner. By using the high powered diode we were able to to pop balloons and light matches.
System: Rabbit RCM6700 Interface Board, RCM6700 Minicore Microprocessor
Language: Dynamic C
Laser Diode: 650nm DVD burner laser
View the Code here.