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221 lines
5.8 KiB
ReStructuredText
221 lines
5.8 KiB
ReStructuredText
MY9231/MY9291 LED driver
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========================
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.. seo::
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:description: Instructions for setting up MY9231 and MY9291 LED drives in ESPHome.
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:image: my9231.svg
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:keywords: MY9231, MY9291, Sonoff B1, Ai-thinker AiLight WiFi light bulb, Arilux E27 Smart Bulb
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.. _my9231-component:
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Component/Hub
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-------------
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The MY9231/MY9291 component represents a MY9231/MY9291 LED driver chain
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(`MY9231 description <http://www.my-semi.com.tw/file/MY9231_BF_0.91.pdf>`__,
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`MY9291 description <http://www.my-semi.com.tw/file/MY9291_BF_0.91.pdf>`__) in
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ESPHome. Communication is done with two GPIO pins (DI and DCKI) and multiple
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driver chips can be chained. There are two models with different number of
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output channels (MY9291 with 4 channels and MY9231 with 3 channels). They are
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popular driver chips used in smart light bulbs:
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- Sonoff B1 (MY9231)
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- Ai-Thinker AiLight WiFi light bulb (MY9291)
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- Arilux E27 Smart Bulb (MY9231)
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To use the channels of this components, you first need to setup the
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global ``my9231`` hub and give it an id, and then define the
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:ref:`individual output channels <my9231-output>`.
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.. code-block:: yaml
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# Example configuration entry
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my9231:
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- data_pin: GPIO12
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clock_pin: GPIO14
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# Individual outputs
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output:
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- platform: my9231
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id: 'my9231_output1'
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channel: 0
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Configuration variables:
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************************
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- **data_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin which DI is connected
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to.
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- **clock_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin which DCKI is
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connected to.
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- **num_channels** (*Optional*, int): Total number of channels of the whole
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chain. Must be in range from 3 to 1020. Defaults to 6.
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- **num_chips** (*Optional*, int): Number of chips in the chain. Must be
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in range from 1 to 255. Defaults to 2.
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- **bit_depth** (*Optional*, int): The bit depth to use for all output
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channels in this chain. Must be one of 8, 12, 14 or 16. Defaults to 16.
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- **id** (*Optional*, :ref:`config-id`): The id to use for
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this ``my9231`` component. Use this if you have multiple MY9231/MY9291 chains
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connected at the same time.
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.. _my9231-output:
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Output
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------
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The MY931/MY9291 output component exposes a MY931/MY9291 channel of a global
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:ref:`my9231-component` as a float output.
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.. code-block:: yaml
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# Example configuration entry
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my9231:
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- data_pin: GPIO12
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clock_pin: GPIO14
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# Individual outputs
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output:
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- platform: my9231
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id: 'my9231_output1'
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channel: 0
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Configuration variables:
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************************
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- **id** (**Required**, :ref:`config-id`): The id to use for this output component.
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- **channel** (**Required**, int): Chose the channel of the MY9231/MY9291 chain of
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this output component. Channel 0 is the most close channel.
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- **my9231_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the
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:ref:`my9231-component`.
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Use this if you have multiple MY9231/MY9291 chains you want to use at the same time.
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- All other options from :ref:`Output <config-output>`.
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Sonoff B1 configuration example
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-------------------------------
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This component can be used with a Sonoff B1 smart light bulb. To flash
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the Sonoff B1, open the plastic cover and connect/solder wires to the
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PCB pads (3.3V, RX, TX, GND, GPIO0). If you connect GPIO0 to GND
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during power up, the device enters flash mode. For more information
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about flashing Sonoff devices, see:
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:doc:`/devices/sonoff_s20`. All LEDs are connected to a
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chain of two MY9321 chips that are connected to GPIO12 and GPIO14. A
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complete configuration for a Sonoff B1 looks like:
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.. code-block:: yaml
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esphome:
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name: REPLACEME
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esp8266:
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board: esp01_1m
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wifi:
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ssid: !secret wifi_ssid
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password: !secret wifi_password
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api:
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logger:
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ota:
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my9231:
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data_pin: GPIO12 # GPIO13 for AiLight
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clock_pin: GPIO14 # GPIO15 for AiLight
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num_channels: 6
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num_chips: 2
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bit_depth: 8
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output:
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- platform: my9231
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id: output_blue
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channel: 0
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- platform: my9231
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id: output_red
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channel: 1
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- platform: my9231
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id: output_green
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channel: 2
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- platform: my9231
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id: output_warm_white
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channel: 4
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- platform: my9231
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id: output_cold_white
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channel: 5
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light:
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- platform: rgbww
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name: REPLACEME
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red: output_red
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green: output_green
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blue: output_blue
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cold_white: output_cold_white
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warm_white: output_warm_white
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cold_white_color_temperature: 6500 K
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warm_white_color_temperature: 2800 K
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And here is a complete configuration for the AiThinker AiLight:
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.. code-block:: yaml
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esphome:
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name: REPLACEME
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esp8266:
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board: esp01_1m
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wifi:
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ssid: !secret wifi_ssid
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password: !secret wifi_password
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api:
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logger:
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ota:
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my9231:
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data_pin: GPIO13
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clock_pin: GPIO15
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num_channels: 4
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num_chips: 1
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bit_depth: 8
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output:
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- platform: my9231
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id: output_red
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channel: 3
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- platform: my9231
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id: output_green
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channel: 2
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- platform: my9231
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id: output_blue
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channel: 1
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- platform: my9231
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id: output_cold_white
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channel: 0
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light:
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- platform: rgbw
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name: REPLACEME
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red: output_red
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green: output_green
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blue: output_blue
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white: output_cold_white
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See Also
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--------
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- :doc:`/components/output/index`
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- :doc:`/components/output/esp8266_pwm`
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- :doc:`/components/output/ledc`
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- :doc:`/components/light/monochromatic`
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- :doc:`/components/fan/speed`
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- :doc:`/components/power_supply`
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- :apiref:`my9231/my9231.h`
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- `MY92XX LED driver library for Arduino AVR and ESP8266 <https://github.com/xoseperez/my92xx>`__ by `@xoseperez <https://github.com/xoseperez>`__
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- :ghedit:`Edit`
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