buzzer — buzzer driver

The buzzer module is used to control the amplitude and frequency of a buzzer onboard your OpenMV Cam.

Note

The buzzer (and this module) is not present on all OpenMV Cam models.

Functions

buzzer.freq(freq: int) → None

Sets the buzzer frequency independently of the volume.

freq any frequency to drive the buzzer at.

buzzer.duty(duty: int) → None

Sets the buzzer duty cycle independently of the frequency.

duty any PWM duty cycle percentage (0-255 for 0-100%).

Constants

buzzer.RESONANT_FREQ: int

Constant definting the highest volume frequency of the buzzer (typically 4000 Hz).