`buzzer` – buzzer control module

The actual name of the module can be buzz_wgen or buzz_nogen depending on the type of the buzzer installed.

It is not recommended to create an instance of this class manually. An instance has already been created in the [RFID Utils](#mod_rfid_utils) module. It can be imported with the following snippet:

try:
        from rfid_utils import BUZZ
except Exception:
        print('Sorry, no buzzer on this board')

Classes

class buzzer.Buzzer(pin)

pin is the number of the GPIO with the buzzer.

on(): Switch the buzzer on. The buzz_nogen module provides an optional parameter freq with the default value of 3200

off(): Switch the buzzer off.

beeps(time_ms=50): Switch the buzzer on for the time_ms period (in milliseconds). This is not a coroutine (blocks for time_ms milliseconds).

beep(time_ms=50)

Async: Switch the buzzer on for the time_ms period (in milliseconds). This is a coroutine.

property enabled: Returns True if the buzzer is currently on, False if it is off.