8000 PWMOut duty_cycle wrong when using variable frequency. · Issue #148 · adafruit/circuitpython · GitHub
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PWMOut duty_cycle wrong when using variable frequency. #148
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PWMOut duty_cycle wrong when using variable frequency.#148
@tannewt

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@tannewt
tannewt
opened on Jun 6, 2017

The duty cycle is incorrect after changing the frequency of a variable frequency PWMOut.

    piezo.frequency = int(tone)
    piezo.duty_cycle = 2 ** 15  # half of max
    time.sleep(duration)
    piezo.duty_cycle = 0

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