Mike Brandl published his Color Programmable Car as the eleventh NXT 2.0 bonus model. Find the building instructions and programs here.
The robot drives around in a path specified by the sequence of colored balls in the NXT set. Using Mike's words: If you throw in a ...
- green ball it will drive forward until the ultrasonic sensor detects an obstacle
- yellow ball it will turn approximately 90 degrees to the right
- red ball it will drive forward 0.5 m
- blue ball it will turn approximately 90 degrees to the left