How to identify which entity ID triggered the group status change

Configuration
1

Hi,

I have a binary sensor group (binary_sensor.texecom_alarm_contacten). Once that group changes status to “on”, I would like to send a notification that my alarm is triggers. However, I would like to include in that message which binary sensor actually triggered this.

I tried this by creating a template sensor:

  - trigger:
      - platform: state
        entity_id:
          - binary_sensor.texecom_alarm_contacten
    sensor:
      - name: "Entity that changed this group"
        unique_id: Tex_Trigger_ID
        state: >
            {{ trigger.to_state.state }}
        attributes:
          trigger_id_at: >
            {{ trigger.entity_id }}

But the trigger_entity_id returns the group “binary_sensor.texecom_alarm_contacten” and not the binary sensor in this group that actually triggered the status change.

Is there a way to retrieve which entity triggered the group status change?

I’m also open to Node-Red based solutions.

Thanks!

2

The way you do this is to list of the entity ids in the trigger section (and not use the group sensor)

3

That would indeed work. However, it would also mean I have to list every individual sensor again in my template sensor (while they are already maintained in the group). Double maintenance etc… I was raised in a way that this should be avoided. :slight_smile:

I was able to do it quite easily in Node-Red (which is fine, since my follow up actions also needed to be defined in Node-Red).

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