Tracked Robot

This is the beginnings of an experimental moving robot, I have coined as Mobot.  It uses a lot of the design work by Emmett on his design of the Moon Rover.  I have changed the design to use a geared motor kit for propulsion, and an Arduino Uno or equivalent to run a Seeed motor controller.  The initial trial program will be to run forward until the ultrasonic ranging device detects an object in its path.  It will then stop, beep. and wait a couple of seconds before checking again.  If the object has not moved, it will beep again and wait again.  After beeping and waiting three times, if the object is still in the way, it will turn until it does not detect anything, and then begin to move forward again.  It is a simple demonstration to some kids I am attempting to spark an interest in engineering and electronics.