using fw: aqv7.1.1852-hwv8.6-ext_esc
Cannot get the ESC to ramp smoothly in RPM. At low RPM the motor does rotate but vibrates and makes a buzzing noise (like it is struggling for sync).
To confirm ESC/motor compatibility, I used a servo tester on the ESC signal line. The motor is smooth and operates normally.
I am using the N4 expander, BUT I also tried grabbing the signal line from motor 2 on the board itself, and get the same results (the only difference is that the buzzing occurs at low throttle on the N4 and mid throttle on the m2 output.
I have tried using SBUS/PPM receivers as well, but they have no effect.