Smart doorbell with Xiaomi Aqara button and Google Home

So I have several Xiaomi Aqara buttons. Today I want to explain how to use this button as a smart doorbell that will play sound to your Google Home device through Home Assistant.

All my Aqara ZigBee devices connected to Home Assistant via ConBee II and deCONZ.

First of all let’s create a script that will be executed when button pressed. In your scripts.yaml:

doorbell:
  alias: Doorbell
  sequence:
  - data:
      entity_id: media_player.googlehome4615 #Your Google Home device
    service: media_player.turn_on
  - delay: 00:00:03 #To make sure we are connected to Google Home
  - data:
      entity_id: media_player.googlehome4615 #Your Google Home device
      media_content_id: https://your.homeassistant.domain:8123/local/doorbell.mp3
      media_content_type: music
    service: media_player.play_media
  - delay: 00:00:05  #The same as doorbell.mp3 file ledgth
  - data:
      entity_id: media_player.googlehome4615
    service: media_player.turn_off

To make doorbell.mp3 available by that url you need to place it to /config/www in your Home Assistant.

Now we need to create a handler of Aqara button in automations.yaml:

- id: doorbell_button_handler
  alias: Doorbell button handler
  trigger:
  - event_data:
      entity_id: binary_sensor.lumi_lumiremoteb1acn01_01ef8594_1_on_off
    event_type: click
    platform: event
  action:
  - data:
      entity_id: script.doorbell
    service: script.turn_on
  initial_state: true

This automation will call our doorbell script on any type of click: short, long or double. That’s basically it for initial setup. All other things depends on your imagination. For example we can add a notification automation:

- id: doorbell_notify
  alias: Doorbell notify
  trigger:
  - entity_id: script.doorbell
    from: 'off'
    platform: state
    to: 'on'
  condition: []
  action:
  - data:
      message: "Someone near your front door"
    service: notify.push