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Raspberry pi 4 codeys pca9685 how to drive PWM adafruit

  • fzrts

    fzrts - 2021-05-28

    Hi, I'm a beginner so forgive me if the problem has already been raised somewhere. How to control via Codesys on a raspberry pi 4 PWM on adafruit PCA9685 so as to be able to regulate the frequency during operation?
    If I enter the value permanently, I see on the oscilloscope that for 600hz I physically have 531hz.
    Unfortunately, it is not possible to change the frequency in flight.

    Thank you in advance for your response


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