esphome-docs/components/light/partition.rst
2019-03-05 20:42:43 +01:00

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Light Partition
===============
.. seo::
:description: Instructions for setting up light partitions.
:image: color_lens.png
The ``partition`` light platform allows you to combine multiple addressable light segments
(like :doc:`fastled` or :doc:`neopixelbus`) into a single addressable light.
This platform also allows splitting up an addressable lights into multiple segments, so that
segments can be individually controlled.
.. code-block:: yaml
# Example configuration entry
light:
- platform: partition
name: "Partition Light"
segments:
# Use first LED from the light with ID light1
- id: light1
from: 0
to: 0
# Use 10 leds from light with ID light2 starting 2nd LED
- id: light2
from: 1
to: 10
# Example for light segment source
- platform: fastled_clockless
id: light2
# Other settings
Configuration variables:
------------------------
- **name** (**Required**, string): The name of the light.
- **segments** (**Required**, list): The segments this light partition controls
- **id** (**Required**, :ref:`config-id`): The ID of the light this segment belongs to.
- **from** (**Required**, int): The first LED to address in the segment. Counting starts with 0,
so first LED is 0.
- **to** (**Required**, int): The index of the last LED to address in this segment.
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
- **effects** (*Optional*, list): A list of :ref:`light effects <light-effects>` to use for this light.
- **internal** (*Optional*, boolean): Mark this component as internal. Internal components will
not be exposed to the frontend (like Home Assistant). Only specifying an ``id`` without
a ``name`` will implicitly set this to true.
- If MQTT enabled, all other options from :ref:`MQTT Component <config-mqtt-component>`.
.. note::
Do *not* use this platform to control each LED on your addressable light - the light
objects have a moderate overhead and if you try to create many lights you will run out
of memory quickly.
See Also
--------
- :doc:`/components/light/index`
- :doc:`/components/light/fastled`
- :doc:`/components/light/neopixelbus`
- :apiref:`light/addressable_light.h`
- :ghedit:`Edit`