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125 lines
4.8 KiB
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125 lines
4.8 KiB
ReStructuredText
Sonoff D1 Dimmer
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================
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.. seo::
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:description: Instructions for setting up a Sonoff D1 dimmer switch.
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:image: brightness-medium.svg
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The ``sonoff_d1`` light platform creates a simple brightness-only light for the
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hardware found in `Sonoff D1 dimmer <https://itead.cc/product/sonoff-d1-smart-dimmer-switch/>`__. Installations with Sonoff RM433 433MHz radio
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remotes are also supported. Use this component to integrate Sonoff D1 dimmer into
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ESPHome / Home Assistant ecosystem.
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.. figure:: images/sonoff_d1.jpg
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:align: center
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:width: 100.0%
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Sonoff D1 dimmer front and back view. Image by `ITEAD <https://itead.cc/product/sonoff-d1-smart-dimmer-switch/>`__.
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Sonoff D1 uses another MCU for light dimming and handling of radio commands.
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It's hooked up to ESP8266 via UART bus with default RX / TX pins being used on
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ESP8266 side. Bi-directional symmetric request / response protocol is implemented
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between ESP8266 and MCU. ``sonoff_d1`` component implements this protocol and
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translates between HA light commands and serial messages.
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For detailed instructions on how to replace the stock firmware with ESPHome see :doc:`/devices/sonoff_s20`.
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You will need to locate GPIO0 pin and serial port. Photos below should help.
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.. figure:: images/sonoff_d1_gpio0.jpg
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:align: center
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:width: 100.0%
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Photo of GPIO 0, images by `klotzma <https://github.com/arendst/Tasmota/issues/7598#issuecomment-578433417>`__.
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.. figure:: images/sonoff_d1_serial.jpg
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:align: center
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:width: 100.0%
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Photo of serial port pins, images by `klotzma <https://github.com/arendst/Tasmota/issues/7598#issuecomment-578433417>`__.
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Before using this components make sure:
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- board is configured to ``esp8285``
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- :ref:`UART bus <uart>` is configured with default RX / TX pins and 9600 baud rate
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- :doc:`logger </components/logger>` to the serial port is disabled by setting ``baud_rate`` to ``0``
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- in case you need light state restoration on power up, make sure ``restore_from_flash`` is set to ``true`` in the :doc:`ESP8266 platform </components/esp8266>`
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This component is useless for devices other than Sonoff D1 dimmer.
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.. code-block:: yaml
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# Example configuration entry
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esphome:
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name: my-d1-dimmer
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# Restore from flash if you want to keep the last state at power up
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esp8266:
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board: esp8285
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restore_from_flash: true
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# Make sure your WiFi will connect
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wifi:
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ssid: "ssid"
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password: "password"
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# Make sure logging is not using the serial port
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logger:
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baud_rate: 0
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# Enable Home Assistant API
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api:
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# Make sure you can upload new firmware OTA
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ota:
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# D1 dimmer uses hardware serial port on the default pins @ 9600 bps
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uart:
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rx_pin: RX
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tx_pin: TX
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baud_rate: 9600
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# And finally the light component
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# gamma correction equal to zero gives linear scale,
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# exactly what's needed for this device
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light:
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- platform: sonoff_d1
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use_rm433_remote: False
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name: Sonoff D1 Dimmer
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restore_mode: RESTORE_DEFAULT_OFF
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gamma_correct: 0.0
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default_transition_length: 1s
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Configuration variables
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-----------------------
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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- **name** (**Required**, string): The name of the light.
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- **use_rm433_remote** (*Optional*, boolean): Set to ``True`` if your setup uses Sonoff RM433
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or any other radio remote control. Properly setting this parameter allows the platform to
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identify what to do with incoming UART commands. RF chip is known to catch random commands
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if not paired with a real remote (so called ghost commands). This problem is observed even
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with the stock firmware and most probably is a bug in the MCU firmware or in the RF chip
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firmware. Setting this to ``False`` instructs the platform to properly ignore such commands
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and thus prevent unexpected switches or light intensity changes.
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- **min_value** (*Optional*, int): The lowest dimmer value allowed. Acceptable value for your
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setup will depend on actual light bulbs installed and number of them. Start with the default
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value and check what will be the minimal brightness bulbs can render. Pay attention that for
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some dimmable LED lamps minimal turn-on brightness will be higher that the minimal achievable
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brightness if you just decrease it when lamp is already turned on. Defaults to 0.
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- **max_value** (*Optional*, int): The highest dimmer value allowed. Use this to hard-limit light
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intensity for your setup. For some bulbs this parameter might be also useful to prevent
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flickering at high brightness values. Defaults to 100.
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- All other options from :ref:`Light <config-light>`.
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See Also
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--------
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- :doc:`/components/light/index`
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- :doc:`/components/uart`
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- :doc:`/components/logger`
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- :doc:`/components/esp8266`
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- :ghedit:`Edit`
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