RW & CM made the same remark, same I would ask? Need more specifics on your Q's. AAR here at element14.com, I believe that everything they sell is at least supported by some documentation. A .pdf document -tech. specs, perhaps. Also they may have also posted Videos on how to use the RaspPi add-on board(s) that control motors by Relays. I have Not bought/Nor-used Relay Board(s) for my RaspPi's. I indulge this hobby via Simulation. i.e. Matlab-SimuLink.
