How can I control the motors directly (for testing)?

[nxf58541]

Is there a way to disengage an FMU and use somthing like four trigger switches to control all four ESC's directly to gain full control of a drone?

[nxf58541 · Accepted solution]

You can use the Mavlink Shell for tests - connect to your drone using the USB cable or the telemetry. Now let's suppose you want to test the outputs of, eg. channels 1 and 3, and set the PWM value to 1200 us:

pwm arm //arm output
pwm test -c 13 -p 1200
pwm disarm //disarm output
pwm info //print current configuration of all channels