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This is really just a reworking of my Ardbot, where I've replaced the Arduino with the (awesome) Gadget Gangster Propellor Platform USB (http://gadgetgangster.com/find-a-project/56?projectnum=257). I've built the 444-AVXB from Rocket Brand Studios (https://sites.google.com/a/rocketbrandstudios.com/rocket-brand-studios/store/pcb-s-and-boards/444-avxb-robot-module) and I must say that it "just works" - no problems whatsoever. I've been wanting to learn Spin so I thought this might be a fun way to apply ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/propagator