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
output:
- platform: libretiny_pwm
pin: P8
frequency: 1000 Hz
id: pwm_output
# Example usage in a light
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).
on_...:
- 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.