Touch sensor beginner guide

http://www.kipr.org/curriculum/touch.html#anchor701290

*NOTE* The sensor ports on the RCX processor are 1, 2 and 3 (Motor ports are A, B, and C, LEGO sensors will not work in these ports).


Good site for IC: http://www.owlnet.rice.edu/~elec201/Book/icmanual.html