40 lines
1.3 KiB
ReStructuredText
40 lines
1.3 KiB
ReStructuredText
ESP8266 Software PWM Output
|
||
===========================
|
||
|
||
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 `ESP32 LEDC
|
||
PWM </esphomeyaml/components/output/ledc.html>`__) 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%.
|
||
- It’s mostly fixed to a frequency of 1kHz, you can `increase this a
|
||
bit manually </api/output/esp8266-pwm.html#example-usage>`__ in code
|
||
though.
|
||
|
||
If you need a stable PWM signal, it’s definitely recommended to use the
|
||
successor of the ESP8266, the ESP32, and its `LEDC
|
||
peripheral </esphomeyaml/components/output/ledc.html>`__ instead.
|
||
|
||
.. code:: yaml
|
||
|
||
# Example configuration entry
|
||
output:
|
||
- platform: esp8266_pwm
|
||
pin: D1
|
||
id: pwm-output
|
||
|
||
Configuration variables:
|
||
~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
- **pin** (**Required**, `Pin
|
||
Schema </esphomeyaml/configuration-types.html#pin-schema>`__): The
|
||
pin to use PWM on.
|
||
- **id** (**Required**,
|
||
`id </esphomeyaml/configuration-types.html#id>`__): The id to use for
|
||
this output component.
|
||
- All other options from
|
||
`Output </esphomeyaml/components/output/index.html#base-output-configuration>`__.
|