esphome-docs/components/light/rgbw.rst

98 lines
3.8 KiB
ReStructuredText
Raw Normal View History

2018-05-13 11:37:02 +02:00
RGBW Light
==========
2018-11-14 22:12:27 +01:00
.. seo::
:description: Instructions for setting up RGB + White-Channel lights.
:image: rgbw.png
2018-06-01 18:10:00 +02:00
The ``rgbw`` light platform creates an RGBW light from 4 :ref:`float output components <output>` (one for each channel).
2018-05-13 11:37:02 +02:00
.. code-block:: yaml
2018-05-13 11:37:02 +02:00
# Example configuration entry
light:
2018-06-01 18:10:00 +02:00
- platform: rgbw
2018-05-13 11:37:02 +02:00
name: "Livingroom Lights"
red: output_component1
green: output_component2
blue: output_component3
white: output_component4
Color Correction
----------------
It is often favourable to calibrate/correct the color produced by an LED strip light as the
perceived intensity of different colors will generally vary. This can be done by using
:ref:`max_power <config-output>` on individual output channels:
.. code-block:: yaml
# Example configuration entry
light:
- platform: rgbw
name: "Livingroom Lights"
red: output_component1
green: output_component2
blue: output_component3
white: output_component4
# Example output entry
output:
- platform: esp8266_pwm
id: output_component1
pin: D1
max_power: 80%
.. note::
Remember that ``gamma_correct`` is enabled by default (``γ=2.8``), and you may want take it into account for the calibration. For instance if you command a light to *50%* brightness and want it to be the new maximum: ``max_PWM_power = max_light_power^2.8 = 0.5^2.8 = 0.144``, then you would set ``max_power`` to *14.4%*.
2021-08-17 02:37:22 +02:00
.. _rgbw_color_interlock:
Color Interlock
---------------
With some LED bulbs, it is not possible to enable the RGB leds at the same time as the white leds, or setting
the RGB channels to maximum whilst wanting a white light will have an undesired hue effect. For these cases a
configuration variable is available that prevents the RGB leds and white leds from being turned on at the same
time: ``color_interlock``.
Setting this option to ``true`` will result in the light having two color modes available, ``RGB`` and ``WHITE``.
When the ``RGB`` color mode is active, the white leds are turned off, and when the ``WHITE`` color mode is active,
the RGB leds are turned off. Switching between these modes can be done from the Home Assistant interface, or by using
the ``color_mode`` option of the :ref:`light control actions <light-turn_on_action>`.
2018-05-13 11:37:02 +02:00
Configuration variables:
2018-08-24 22:44:01 +02:00
------------------------
2018-05-13 11:37:02 +02:00
2018-06-01 18:10:00 +02:00
- **name** (**Required**, string): The name of the light.
- **red** (**Required**, :ref:`config-id`): The id of the float :ref:`output` to use for the red channel.
- **green** (**Required**, :ref:`config-id`): The id of the float :ref:`output` to use for the green channel.
- **blue** (**Required**, :ref:`config-id`): The id of the float :ref:`output` to use for the blue channel.
- **white** (**Required**, :ref:`config-id`): The id of the float :ref:`output` to use for the white channel.
- **effects** (*Optional*, list): A list of :ref:`light effects <light-effects>` to use for this light.
- **color_interlock** (*Optional*, boolean): When enabled, this will prevent white leds being on at the same
time as RGB leds. See :ref:`rgbw_color_interlock` for more information. Defaults to ``false``.
2018-06-01 18:10:00 +02:00
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
2019-05-12 22:44:59 +02:00
- All other options from :ref:`Light <config-light>`.
2018-06-01 18:10:00 +02:00
See Also
2018-08-24 22:44:01 +02:00
--------
2018-06-01 18:10:00 +02:00
- :doc:`/components/output/index`
- :doc:`/components/light/index`
- :doc:`/components/light/cwww`
- :doc:`/components/light/color_temperature`
- :doc:`/components/light/rgb`
- :doc:`/components/light/rgbww`
- :doc:`/components/light/rgbct`
- :doc:`/components/power_supply`
- :doc:`/components/output/ledc`
- :doc:`/components/output/esp8266_pwm`
- :doc:`/components/output/pca9685`
2019-10-14 11:38:20 +02:00
- :doc:`/components/output/tlc59208f`
- :doc:`/components/output/my9231`
- :doc:`/components/output/sm16716`
2019-05-12 22:44:59 +02:00
- :apiref:`rgbw/rgb_light_output.h`
- :ghedit:`Edit`