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42 lines
1.5 KiB
ReStructuredText
42 lines
1.5 KiB
ReStructuredText
ESP8266 Software PWM Output
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===========================
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The ESP8266 Software PWM platform allows you to use a software PWM on
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the pins GPIO0-GPIO16 on your ESP8266. As this is only a software PWM
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and not a hardware PWM (like the :doc:`ESP32 LEDC PWM <ledc>`) and has a few
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limitations.
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- There can be a noticeable amount of flickering with increased WiFi activity.
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- The output range only goes up to about 80%.
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- It’s mostly fixed to a frequency of 1kHz, you can :ref:`increase this a
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bit manually <esp8266_pwm-example_usage>` in code though.
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If you need a stable PWM signal, it’s definitely recommended to use the
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successor of the ESP8266, the ESP32, and its :doc:`ESP32 LEDC PWM <ledc>` instead.
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.. code:: yaml
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# Example configuration entry
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output:
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- platform: esp8266_pwm
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pin: D1
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id: pwm-output
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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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- All other options from :ref:`Output <config-output>`.
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See Also
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^^^^^^^^
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- :doc:`/esphomeyaml/components/output/index`
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- :doc:`/esphomeyaml/components/output/ledc`
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- :doc:`/esphomeyaml/components/light/monochromatic`
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- :doc:`/esphomeyaml/components/fan/speed`
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- :doc:`/esphomeyaml/components/power_supply`
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- :doc:`API Reference </api/output/esp8266-pwm>`
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- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/components/output/esp8266_pwm.rst>`__
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