Rpm2 help Automatic throttle control

ArduCopter Traditional Helicopter
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1

RPM Measurement — Copter documentation (ardupilot.org)

I cannot read sensor data and cannot control the throttle automatically according to the settings. What should I do?

my helicopter is 700N

2

Please describe which sensor are you using and how is it wired.
Post a param file of your setup.

3

Are you using the OEM beastX sensor and did you set it up for hall effect as the page you linked describes?