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67 lines
2.0 KiB
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67 lines
2.0 KiB
ReStructuredText
LibreTiny PWM Output
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====================
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.. seo::
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:description: Instructions for setting up LibreTiny hardware PWMs.
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:image: pwm.png
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The LibreTiny PWM platform allows you to use a hardware PWM on BK72xx and RTL87xx chips.
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Refer to `LibreTiny/Boards <https://docs.libretiny.eu/link/boards>`__ to find your board
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and which PWM pins it supports.
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.. code-block:: yaml
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# Example configuration entry
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output:
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- platform: libretiny_pwm
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pin: P8
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frequency: 1000 Hz
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id: pwm_output
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# Example usage in a light
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light:
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- platform: monochromatic
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output: pwm_output
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name: "Kitchen Light"
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Configuration variables:
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------------------------
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- **pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin to use PWM on.
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- **id** (**Required**, :ref:`config-id`): The id to use for this output component.
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- **frequency** (*Optional*, frequency): The frequency to run the PWM with. Lower frequencies
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have more visual artifacts, but can represent much more colors. Defaults to ``1000 Hz``.
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- All other options from :ref:`Output <config-output>`.
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.. _output-libretiny_pwm-set_frequency_action:
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``output.libretiny_pwm.set_frequency`` Action
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---------------------------------------------
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This :ref:`Action <config-action>` allows you to manually change the frequency of a LibreTiny PWM
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channel at runtime. Use cases include controlling a passive buzzer (for pitch control).
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.. code-block:: yaml
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on_...:
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- output.libretiny_pwm.set_frequency:
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id: pwm_output
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frequency: 100Hz
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Configuration variables:
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- **id** (**Required**, :ref:`config-id`): The ID of the PWM output to change.
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- **frequency** (**Required**, :ref:`templatable <config-templatable>`, float): The frequency
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to set in hertz.
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See Also
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--------
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- :doc:`/components/libretiny`
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- :doc:`/components/output/index`
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- :doc:`/components/light/monochromatic`
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- :doc:`/components/fan/speed`
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- :doc:`/components/power_supply`
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- :apiref:`libretiny_pwm/libretiny_pwm.h`
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- :ghedit:`Edit`
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