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Old 12 August 2018, 17:59   #1118
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Join Date: Sep 2008
Location: Paris / France
Posts: 618
Originally Posted by demolition View Post
Putting a resistor in series with the buzzer will reduce the volume. Since the audio is generated by a digital output pin, I don't see any simple way to decrease the volume through software, unless the driving pin happens to be a PWM output pin from the uC.
Which is the case.
But i suppose that he is using the unstable solution : using the step signal directly.
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