Using automation with group and variable

Configuration
1

Hello everybody.
I’m new with home assistant and I’m trying to create a simple automation.
I’ve a group with entity id binary_sensor.my_doors.
Into configuration.yaml I’ve added sendmail notify.
I whould like to send an email every time change the status of a door.
I need to get the sensor name and status to create a custom message like “The door {name of the door} is {status of the sensor}”
It’s possible or I need to create an automation for each doors?

2

You do not need to make a separate automation, but I would suggest to add several triggers to the automation - one for each door. Then you can achieve this with the trigger ID and a template.

3

Tnx FPro, any examples?
This is current yaml code:

alias: Door open/close
trigger:
  - platform: state
    entity_id:
      - binary_sensor.my_doors
    for:
      hours: 0
      minutes: 0
      seconds: 2
    from: null
    to: null
condition: []
action:
  - service: notify.send_email
    metadata: {}
    data:
      message: "Name of the door was status of the door"
mode: single
4

I don’t think you can do that from a group with this trigger:

trigger:
  - platform: state
    entity_id:
      - binary_sensor.my_doors
    for:
      hours: 0
      minutes: 0
      seconds: 2
    from: null
    to: null

If one door is open the group will be on. If another the door opens the group state does not change. It will still be on.

You can’t even do it with this trigger that also monitors the group attributes:

trigger:
  - platform: state
    entity_id:
      - binary_sensor.my_doors

As there are no attributes that change either.

You have to list all the doors:

trigger:
  - platform: state
    entity_id:
      - binary_sensor.door_1
      - binary_sensor.door_2
      - binary_sensor.door_3
      - binary_sensor.door_n
    for:
      hours: 0
      minutes: 0
      seconds: 2
    from: null
    to: null

Or if you don’t want annoying notifications at start up:

trigger:
  - platform: state
    entity_id:
      - binary_sensor.door_1
      - binary_sensor.door_2
      - binary_sensor.door_3
      - binary_sensor.door_n
    for:
      hours: 0
      minutes: 0
      seconds: 2
    not_from:
      - unknown
      - unavailable
    not_to:
      - unknown
      - unavailable

Then your action can be:

action:
  - service: notify.send_email
    metadata: {}
    data:
      message: "{{ trigger.to_state.name }} changed to {{ 'open' if trigger.to_state.state == 'on' else 'closed' }}."
5

work like a charm :heart_eyes:
amazing