SM16716 LED driver
==================

.. seo::
    :description: Instructions for setting up SM16716 LED drivers in ESPHome.
    :image: sm16716.svg
    :keywords: SM16716, Feit Electric A19 Smart WiFi Bulb, Merkury Innovations A21 Smart Wi-Fi Bulb

.. _sm16716-component:

Component/Hub
-------------

The SM16716 component represents a SM16716 LED diver chain
(`SM16716 description <https://github.com/sowbug/sm16716/blob/master/SM16716%20Datasheet%20%5BChinese%5D.pdf>`__,
`SM16716 description <https://github.com/sowbug/sm16716/blob/master/SM16716%20Datasheet%20%5BChinese%5D.pdf>`__) in
ESPHome. Communication is done with two GPIO pins (MOSI and SCLK) and multiple
driver chips can be chained. It is used in some smart light bulbs:

- Feit Electric A19 Smart WiFi Bulb
- Merkury Innovations A21 Smart Wi-Fi Bulb

To use the channels of this components, you first need to setup the
global ``sm16716`` hub and give it an id, and then define the
:ref:`individual output channels <sm16716-output>`.

.. code-block:: yaml

    # Example configuration entry
    sm16716:
      data_pin: GPIO14
      clock_pin: GPIO4
      num_channels: 3
      num_chips: 1

    # Individual outputs
    output:
      - platform: sm16716
        id: output_red
        channel: 0
      - platform: sm16716
        id: output_green
        channel: 1
      - platform: sm16716
        id: output_blue
        channel: 2

Configuration variables:
************************

-  **data_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin used for MOSI.
-  **clock_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin which SCLK is
   connected to.
-  **num_channels** (*Optional*, int): Total number of channels of the whole
   chain. Must be in range from 3 to 255. Defaults to 3.
-  **num_chips** (*Optional*, int): Number of chips in the chain. Must be
   in range from 1 to 85. Defaults to 1.
-  **id** (*Optional*, :ref:`config-id`): The id to use for
   this ``sm16716`` component. Use this if you have multiple SM16716 chains
   connected at the same time.

.. _sm16716-output:

Output
------

The SM16716 output component exposes a SM16716 channel of a global
:ref:`sm16716-component` as a float output.

.. code-block:: yaml

    # Example configuration entry
    sm16716:
      data_pin: GPIO14
      clock_pin: GPIO4
      num_channels: 3
      num_chips: 1

    # Individual outputs
    output:
      - platform: sm16716
        id: output_red
        channel: 0
      - platform: sm16716
        id: output_green
        channel: 1
      - platform: sm16716
        id: output_blue
        channel: 2

Configuration variables:
************************

- **id** (**Required**, :ref:`config-id`): The id to use for this output component.
- **channel** (**Required**, int): Chose the channel of the SM16716 chain of
  this output component.
- **sm16716_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the
  :ref:`sm16716-component`.
  Use this if you have multiple SM16716 chains you want to use at the same time.
- All other options from :ref:`Output <config-output>`.

Feit Electric A19 Smart WiFi Bulb
---------------------------------

This component can be used with a Feit Electric A19 smart light bulb. You can use
tuya-convert to flash the bulb. The cold white LEDs are connected to PWM1 and the
warm white LEDs are connected to PWM2. The RGB LEDs are connected to a SM16716
chip that is connected to GPIO4 for clock, GPIO14 for data, and GPIO13 for power.
A complete configuration for a Feit Electric A19 looks like:

.. code-block:: yaml

    esphome:
      name: <NAME_OF_NODE>
      platform: ESP8266
      board: esp01_1m

    wifi:
      ssid: <YOUR_SSID>
      password: <YOUR_WIFI_PASSPHRASE>

    api:

    logger:

    ota:
      password: <YOUR_OTA_PASSWORD>

    sm16716:
      data_pin: GPIO14
      clock_pin: GPIO4
      num_channels: 3
      num_chips: 1

    output:
      - platform: sm16716
        id: output_red
        channel: 0
        power_supply: rgb_power
      - platform: sm16716
        id: output_green
        channel: 1
        power_supply: rgb_power
      - platform: sm16716
        id: output_blue
        channel: 2
        power_supply: rgb_power
      - platform: esp8266_pwm
        id: output_cold_white
        pin: GPIO5
      - platform: esp8266_pwm
        id: output_warm_white
        pin: GPIO12

    light:
      - platform: rgbww
        name: ${friendly_name}
        id: light
        red: output_red
        green: output_green
        blue: output_blue
        cold_white: output_cold_white
        warm_white: output_warm_white
        cold_white_color_temperature: 6500 K
        warm_white_color_temperature: 2700 K

    power_supply:
      - id: rgb_power
        pin: GPIO13

.. note::

    The white LEDs are much brighter than the color LEDs and will fully overpower
    the set color when the white level is set even a little bit high. You will need
    to set the white level to 0 in order to get usable colors from this bulb.

See Also
--------

- :doc:`/components/output/index`
- :doc:`/components/output/esp8266_pwm`
- :doc:`/components/light/rgb`
- :doc:`/components/light/rgbw`
- :doc:`/components/light/rgbww`
- :doc:`/components/power_supply`
- :apiref:`output/sm16716_output_component.h`
- `An Arduino controller for SM16716-based LED strings. <https://github.com/sowbug/sm16716>`__ by `@snowbug <https://github.com/sowbug>`__
- :ghedit:`Edit`