State Changed Event as a Trigger

Configuration
,
1

Hello All,

I am trying to trigger an automation when my Kitchen Timer sensor changes to any end_time from any end_time except for “”. I have my event below and my automation below. I am not sure why the automation isn’t being triggered. Any help would be appreciated.

event_type: state_changed
data:
  entity_id: sensor.kitchen_speakery_timer_1
  old_state:
    entity_id: sensor.kitchen_speakery_timer_1
    state: ""
    attributes:
      duration: ""
      end_time: ""
      integration: google_home
      icon: mdi:timer
      friendly_name: Timer 1
    last_changed: "2024-09-02T15:56:09.950066+00:00"
    last_reported: "2024-09-02T15:56:09.950066+00:00"
    last_updated: "2024-09-02T15:56:09.950066+00:00"
    context:
      id: 01J6SQ6SAVFY49R8S03JASZYF6
      parent_id: null
      user_id: null
  new_state:
    entity_id: sensor.kitchen_speakery_timer_1
    state: active
    attributes:
      duration: "0:01:00"
      end_time: "2024-09-02T12:04:22-04:00"
      integration: google_home
      icon: mdi:timer
      friendly_name: Timer 1
    last_changed: "2024-09-02T16:03:42.263285+00:00"
    last_reported: "2024-09-02T16:03:42.263285+00:00"
    last_updated: "2024-09-02T16:03:42.263285+00:00"
    context:
      id: 01J6SQMK1MRCP63DK9B6MX2DRS
      parent_id: null
      user_id: null
origin: LOCAL
time_fired: "2024-09-02T16:03:42.263285+00:00"
context:
  id: 01J6SQMK1MRCP63DK9B6MX2DRS
  parent_id: null
  user_id: null


alias: "Alarm: Kitchen Alarm"
description: ""
trigger:
  - platform: event
    event_type: state_changed
    event_data:
      entity_id: sensor.kitchen_speakery_timer_1
    variables:
      end_time: "{{ trigger.event.data.old_state.attributes.end_time}}"
    context: {}
condition:
  - condition: template
    value_template: "{{end_time != ''}}"
action:
  - action: notify.google_assistant_sdk
    data:
      message: Kitchen Alarm is Ringing
      target:
        - playroom
mode: single
2

Have you tried just using a State trigger…? When the attribute option is specified, the trigger only fires when the specified attribute changes.

trigger:
  - platform: state
    entity_id: sensor.kitchen_speakery_timer_1
    attribute: end_time
condition:
  - condition: template
    value_template: "{{ not trigger.from_state.attributes.end_time in ['', none] }}"
3

I didn’t know not_to or not_from was an option!
thank you!