Servo motors connected to the aux channel of Pixhawk jitter

Question

Daehee Lim 2022-10-25

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https://ww2.mathworks.cn/matlabcentral/answers/1834473-servo-motors-connected-to-the-aux-channel-of-pixhawk-jitter

回答： Manoj Velmurugan 2022-10-31

I uploaded the auto generated code to pixhawk and I connected two servo motors to the aux out and main out respectively.

The servo motor connected to the main out moves with the increasing throttle position, however, the servo motor connected to the aux out jitters whether the throttle increases or not.

What do I need to do?

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Manoj Velmurugan 2022-10-27

I checked your model's configuration which appears fine. 50Hz PWM frequency for servos should be fine.

You could try using a logic analyzer on servo channel to observe the ON time. In case that fluctuates, problem is on the input side.

Else it could be a power supply issue.

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Answer 1

Manoj Velmurugan 2022-10-31

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1834473-servo-motors-connected-to-the-aux-channel-of-pixhawk-jitter#answer_1087803

I checked your model's configuration which appears fine. 50Hz PWM frequency for servos should be fine.

To find the exact cause, you could try using a logic analyzer on servo channel to observe the on-time of PWM signal going to the servo. In case it fluctuates, problem is on the generated PWM signal.

Else it could be a power supply issue.