The project is meant to teach children how colors mix while at the same time making it a fun experience. The project consists of 3 different colored toy bumper cars; yellow, red, and blue. When 2 cars crash together the colors of both cars mix together resulting in both cars becoming the mixed color, for example crashing the blue and yellow cars will result in both cars becoming green.
All kids love to play with toy cars and crashing them together is natural in play. So why not make this a learning experience while at the same time making it more fun.
The toy cars have four conductive passes surrounding the base of the car, this allows for simple close/open circuit based identification of each car with each car transmitting 5V on a different pass. With in each car is a separate Arduino which controls the color of each car, each car contains a certain amount of led lamps to allow for different color combinations.