nxtcodehelp.com is an active and one of a kind resource for programming the Lego Mindstorms NXT Robot. It offers in depth tutorials for many of your NXT Programming needs, including sensors, motors, ...
Optical sensor, touch sensor, sound sensor, ultrasonic sensor, and 32-bit microprocessor. It seems that the next generation LEGO Mindstorm "LEGO MINDSTORM NXT" with four input ports, three output ...