I thought you knew that. The controller and LCD have to match UART or CAN. the motor only has phase and hall wires connected. The PAS is standard 3 wires. I, m not sure if CAN controllers need a CAN battery. Does anybody know?Alice at PSWPower told me UART versions of BBS01B and BBS02B controller, can be used with CAN bus versions of those motors. If correct, this could be useful for Bafangers wanting motors for spare parts, or motor replacement.