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50 lines
1.4 KiB
ReStructuredText
50 lines
1.4 KiB
ReStructuredText
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Slow PWM Output
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===============
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.. seo::
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:description: Instructions for setting up slow pwm outputs for GPIO pins.
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:image: pwm.png
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Similar to PWM, the Slow PWM Output platform allows you to control GPIO pins by
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pulsing them on/off over a longer time period. It could be used to control a
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heating element through a relay where a fast PWM update cycle would not be appropriate.
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.. note::
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This is for **slow** PWM output. For fast-switching PWM outputs (for example,
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lights), see these outputs:
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- ESP32: :doc:`ledc`
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- ESP8266: :doc:`esp8266_pwm`
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.. code-block:: yaml
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# Example configuration entry
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output:
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- platform: slow_pwm
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pin: D1
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id: my_slow_pwm
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period: 15s
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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 pulse.
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- **id** (**Required**, :ref:`config-id`): The id to use for this output component.
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- **period** (**Required**, :ref:`config-time`): The duration of each cycle. (i.e. a 10s
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period at 50% duty would result in the pin being turned on for 5s, then off for 5s)
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- All other options from :ref:`Output <config-output>`.
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See Also
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--------
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- :doc:`/components/output/index`
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- :doc:`/components/output/esp8266_pwm`
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- :doc:`/components/output/ledc`
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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:`slow_pwm/slow_pwm_output.h`
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- :ghedit:`Edit`
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