Compatible with Lego Mindstorms

Limit Switch Application    Limit Switches - Theory  -  How they work. How to build your own..

Electric Air Valve for Lego Mindstorms RCX   Electric Air Valve - Control Air Cylinders from your RCX.



Relay Brick for Lego Mindstorms    Relay - Control other electrical equipment from your RCX.

Linear Actuator - Moves like a hydraulic cylinder.  

Limit Switch Adapter for Lego Mindstorms RCX Limit Switch Adapter - Use your Lego switch sensor as a limit switch.