I’m buildling a quadplane. I need ESC control for seven motors - six for the quad part and one for the plane part. I also need servo control for rudder, elevator, ailerons, and two accessory servos. I have a Pixhawk 6C Mini flight controller which has 8 standard ESC/servo ports and 6 FMU ports. How would I apportion the ports for all the servos and ESCs? Thanks!
https://ardupilot.org/plane/docs/common-holybro-pixhawk6C.html#pwm-output
If the ESCs are using Dshot then they need to be on the FMU outputs. Otherwise if they are PWM (the same as the servos) then you can map them however you want.
I moved this thread to the VTOL page, because quad planes are part of ArduPlane, not copter.
Thanks. That’s interesting. I also have a new Holybro X500 quadcopter whose BL-Heli ESCs support DShot. If I mount a Holybro Pixhawk 6C Mini on the X500, would I connect the ESCs to the FMU ports? What settings would I set in Mission Planner for this flight controller and quadcopter combination, including firmware version? I have no previous experience with BL-Heli or the FMU ports. I found that the latest version of firmware (4.5.x) prevented the motors from turning, and I had to revert to 4.3.1.
It’s all in the docs:
https://ardupilot.org/copter/docs/common-dshot-escs.html#common-dshot-escs
https://ardupilot.org/copter/docs/common-blheli32-passthru.html#common-blheli32-passthru
If you had to revert then you haven’t got it set up correctly.