Running a Matek 743 Wing V3. Building a rover. Pretty much everything is set up, compass, GPS, RC Radio, all working. The motor controller takes a standard RC PWM signal input to drive a couple big DC motors. My motors are not working. Occasionally they did work, but it seamed more like luck, next time I tested they dont.
Mission planner is arming ok.
If I connect the RC Receiver directly to the motor controller, it works, so I know the motor controller is OK. I’ve wired and set up in Mission Planner to use Servo 2 and 3. On the radio calibrate page I get the expected response. But a motor test wont work. If I go into manual mode and wiggle the sticks, the motors dont work, so I connected a cro to the PWM outputs on the 743 ( S2 and S3 ), I see a PWM signal, and this changes duration as I wiggle the RC transmitter sticks. But, its at like 16kHz! I have a cycle duration of 60uS, not the 20mS you would expect.
OK, so starting to realise I need to configure something. But what. Its outputting a 16kHz PWM signal to drive something like a mosfet, but my motor controller is expecting the standard RC type PWM signal, which is somewhere between 50 and 400Hz. Could someone point me in the right direction?
MOT_PWM_TYPE=0: R/C pulse signal, 1-2ms (1-1.5 backwards, 1.5-2 forward) 50Hz or more (R/C receiver signal to servos). Correctly named PDM (Pulse Duration Modulation). MOT_PWM_TYPE=3: PWM modulated signal, 0-100% duty cycle, to PWM motor controller probably requiring additionally DIR signal.