notbrainsurgery: OWI Robotic Arm Edge USB protocol (and sampe code).

OWI Robotic Arm Edge – You can use USB interface module to connect it to PC. Unfortunately official software works only under Windows and do not provide API. I have been able to reverse engineer their USB protocol and write sample code which allows to control the arm from Mac and Linux.

This is USB device with vendor id 0×1267 and product id 0. The device is controlled by 3 byte commands sent via USB control transfers. Command format is byte0, byte1, byte2. Each byte controls a group of arm features. All motors could be controlled independently. Most commands start action which is continued until next action is signalled. Byte ’00′ universally used as stop action.

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