49 lines
1.7 KiB
ReStructuredText
49 lines
1.7 KiB
ReStructuredText
ESP8266 Software PWM Output
|
||
===========================
|
||
|
||
.. seo::
|
||
:description: Instructions for setting up ESP8266 software-based PWMs.
|
||
:image: pwm.png
|
||
|
||
The ESP8266 Software PWM platform allows you to use a software PWM on
|
||
the pins GPIO0-GPIO16 on your ESP8266. As this is only a software PWM
|
||
and not a hardware PWM (like the :doc:`ESP32 LEDC PWM <ledc>`) and has a few
|
||
limitations.
|
||
|
||
- There can be a noticeable amount of flickering with increased WiFi activity.
|
||
- The output range only goes up to about 80%.
|
||
|
||
If you need a stable PWM signal, it’s definitely recommended to use the
|
||
successor of the ESP8266, the ESP32, and its :doc:`ESP32 LEDC PWM <ledc>` instead.
|
||
|
||
.. code:: yaml
|
||
|
||
# Example configuration entry
|
||
output:
|
||
- platform: esp8266_pwm
|
||
pin: D1
|
||
frequency: 1000 Hz
|
||
id: pwm-output
|
||
|
||
Configuration variables:
|
||
------------------------
|
||
|
||
- **pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin to use PWM on.
|
||
- **id** (**Required**, :ref:`config-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 :ref:`Output <config-output>`.
|
||
|
||
See Also
|
||
--------
|
||
|
||
- :doc:`/esphomeyaml/components/output/index`
|
||
- :doc:`/esphomeyaml/components/output/ledc`
|
||
- :doc:`/esphomeyaml/components/light/monochromatic`
|
||
- :doc:`/esphomeyaml/components/fan/speed`
|
||
- :doc:`/esphomeyaml/components/power_supply`
|
||
- :doc:`API Reference </api/output/esp8266-pwm>`
|
||
- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/components/output/esp8266_pwm.rst>`__
|
||
|
||
.. disqus::
|