Hi....I am trying to connect a Rapsberry pi to parallax Propeller microcontroller. My intend is to use the propeller read comands from the pi and control motors and read sensors and relay the information back to the Pi on a mobile robot. I intend to add vision eventually using OpenCV or some other vision library so the Usb port cannot be used for communications. Any information regarding how to do the communications would be appreciated. Oh and one more thing my programming experiences are primarly C++ and Java with a little basic.