This is a prototype for a kit that was to be assembled during a RBDO that took place in December of 2009.
The robot uses a custom made IR sensor board and a simple comparator to determine which way to go depending on which sensor is over the white line. Uses the L293D motor controller and two pots to adjust sensitivity.
Check out the video of this robot:
Finally out of prototype stage! Rebuilt electronics, no longer uses breadboard. Kept same popcicle stick chassis. Still a little finicky but ready to have some fun!