The robot that lights fireworks

How do you use a LEGO Mindstorms NXT to set off fireworks safely? This video shows you how. The robot is a MINDSTORMS NXT kit which uses two light sensors, one for detecting the lighting of a firework. The prototype also uses an ultrasonic sensor to adjust the height of the lighter in comparison to the wick. Two motors operate to place the Mindstorms and a third is used for the arm of the lighter. Summer is fireworks season and it's a good idea to tinker with such a machine to ensure the safety of powdermen. http://www.youtube.com/watch?v=glwJ4QcmEAU