Hallo for your Troubleshoot whis the AlexMos Board. The other 3 Pins must connect to the 3 MOTOR Pins on the Mainboard over BAT, SDA and SCL ... Then you can use YAW for the Motorconnection. In the BaseCamSimpleBGC you must set the MOTOR_outputs - YAW to YAW_EXTboard.
regard
Oliver
March 2015
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