Home Assistant automation to send a notification every X minutes the garage door was left open without motion

Garage Left Open - Loop.yaml

alias: Garage Door Open Notification
description: Send out repeating notifications or announcements that the garage door is left open
mode: restart
trigger:
  - platform: state
    entity_id:
      - group.garage_motion
      - binary_sensor.contact_7_contact
condition:
  - condition: state
    entity_id: binary_sensor.contact_7_contact
    state: "on"
action:
  - delay:
      minutes: 10
  - repeat:
      while:
        - condition: and
          conditions:
            - condition: state
              entity_id: binary_sensor.contact_7_contact
              state: "on"
            - condition: state
              entity_id: group.garage_motion
              state: "off"
              for:
                minutes: 5
      sequence:
        - service: tts.cloud_say
          data:
            entity_id: media_player.living_room_home
            message: Garage door is open
        - delay:
            minutes: 5

Garage Left Open - Time Trigger.yaml

alias: Garage door open notification
description: Send out repeating notifications or announcements that the garage door is left open
mode: single
trigger:
  - platform: time_pattern
    minutes: /5
condition:
  - condition: state
    entity_id: binary_sensor.contact_7_contact
    state: "on"
    for:
      minutes: 10
  - condition: state
    entity_id: group.garage_motion
    state: "off"
    for:
      minutes: 5
action:
  - service: tts.cloud_say
    data:
      entity_id: media_player.living_room_home
      message: Garage door is open

Two methods listed here.

One method uses a simple datetime trigger....it runs every 5 minutes...if the garage has been left open and there hasn't been any motion it will announce. This is a much simpler design and for something like this, it doesn't need to be perfectly accurate with regard to 5 minute intervals. If you leave the garage open at 5:41 then it won't announce until 5:50, and that's probably going to be fine.

The other method is more complex, uses multiple triggers, loops etc. It's more "accurate" in that the announcement will always be at the 5 minute mark. But why overcomplicate it if you don't have to.