Dinobot is a converted Radio Shack toy R/C car, called Dinotrack. It uses the "Rug Warrior" CPU board by MIT. It has an on board Sharp IR sensor for collision avoidance, two bump sensors that look like insect antennae plus right and left light sensors. The motors are controlled by a dual H-Switch circuit using two IRFT003 FET modules. The original R/C system was modified to provide an emergency stop. Embedded Acquisition Systems 1565 Shrader Street San Francisco, CA 94117 WEB http://www.hooked.net/~jfong EMAIL jfong@hooked.net