Left Hand Algo is based on simple rules-
DEAD END - U turn
At a LINE : Move a little forward If there is a line Cross - Go to LEFT If There is no line: T - Go to LEFT If there is another line: End of Maze - STOP
At a RIGHT TURN : Move a little forward if there is a line: Straight or Right - Go STRAIGHT If there is no line: Right Only - Go to RIGHT
At a LEFT TURN : Move a little forward if there is a line: Straight or LEFT - Go to LEFT If there is no line: LEFT Only - Go to LEFT
Project is implemented on Atmel using AT90USB1287