LibreTiny PWM Output

The LibreTiny PWM platform allows you to use a hardware PWM on BK72xx and RTL87xx chips. Refer to LibreTiny/Boards to find your board and which PWM pins it supports.

# Example configuration entry
  - platform: libretiny_pwm
    pin: P8
    frequency: 1000 Hz
    id: pwm_output

# Example usage in a light
  - platform: monochromatic
    output: pwm_output
    name: "Kitchen Light"

Configuration variables:

  • pin (Required, Pin Schema): The pin to use PWM on.

  • id (Required, ID): The id to use for this output component.

  • frequency (Optional, frequency): The frequency to run the PWM with. Lower frequencies have more visual artifacts, but can represent much more colors. Defaults to 1000 Hz.

  • All other options from Output.

output.libretiny_pwm.set_frequency Action

This Action allows you to manually change the frequency of a LibreTiny PWM channel at runtime. Use cases include controlling a passive buzzer (for pitch control).

  - output.libretiny_pwm.set_frequency:
      id: pwm_output
      frequency: 100Hz

Configuration variables:

  • id (Required, ID): The ID of the PWM output to change.

  • frequency (Required, templatable, float): The frequency to set in hertz.

See Also