esphome-docs/components/light/esp32_rmt_led_strip.rst
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Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
2024-05-07 00:40:12 -05:00

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ESP32 RMT LED Strip
===================
.. seo::
:description: Instructions for setting up addressable lights like NEOPIXEL on an ESP32 using the RMT peripheral.
:image: color_lens.svg
This is a component using the ESP32 RMT peripheral to drive most addressable LED strips.
.. code-block:: yaml
light:
- platform: esp32_rmt_led_strip
rgb_order: GRB
pin: GPIOXX
num_leds: 30
rmt_channel: 0
chipset: ws2812
name: "My Light"
Configuration variables
-----------------------
- **pin** (**Required**, :ref:`config-pin`): The pin for the data line of the light.
- **num_leds** (**Required**, int): The number of LEDs in the strip.
- **rmt_channel** (**Required**, int): The RMT channel to use. If using multiple strips, you need to use different channels.
.. csv-table::
:header: "ESP32 Variant", "Channels"
"ESP32", "0, 1, 2, 3, 4, 5, 6, 7"
"ESP32-S2", "0, 1, 2, 3"
"ESP32-S3", "0, 1, 2, 3"
"ESP32-C3", "0, 1"
- **chipset** (**Required**, enum): The chipset to apply known timings from. Not used if specifying the timings manually, see below.
- ``WS2812``
- ``SK6812``
- ``APA106``
- ``SM16703``
- **rgb_order** (**Required**, string): The RGB order of the strip.
- ``RGB``
- ``RBG``
- ``GRB``
- ``GBR``
- ``BGR``
- ``BRG``
- **is_rgbw** (*Optional*, boolean): Set to ``true`` if the strip is RGBW. Defaults to ``false``.
- **is_wrgb** (*Optional*, boolean): Set to ``true`` if the strip is WRGB. Defaults to ``false``.
- **max_refresh_rate** (*Optional*, :ref:`config-time`):
A time interval used to limit the number of commands a light can handle per second. For example
16ms will limit the light to a refresh rate of about 60Hz. Defaults to sending commands as quickly as
changes are made to the lights.
- All other options from :ref:`Light <config-light>`.
Manual Timings
**************
These can be used if you know the timings and your chipset is not set above. If you have a new specific chipset,
please consider adding support to the codebase and add it to the list above.
- **bit0_high** (*Optional*, :ref:`config-time`): The time to hold the data line high for a ``0`` bit.
- **bit0_low** (*Optional*, :ref:`config-time`): The time to hold the data line low for a ``0`` bit.
- **bit1_high** (*Optional*, :ref:`config-time`): The time to hold the data line high for a ``1`` bit.
- **bit1_low** (*Optional*, :ref:`config-time`): The time to hold the data line low for a ``1`` bit.
See Also
--------
- :doc:`/components/light/index`
- :doc:`/components/power_supply`
- :apiref:`esp32_rmt_led_strip/esp32_rmt_led_strip.h`
- :ghedit:`Edit`