Smoke Alarm Trigger – Lights On, Door Unlock & Shutters Up 🚨


This automation is designed for emergency situations when the smoke alarm is triggered. It immediately ensures maximum visibility and access: lights turn on, automations start, shutters open, and the door unlocks automatically. 🛑

The goal is to facilitate evacuation for residents and provide emergency services with quick access – safety and comfort features are activated automatically. 🚒

How It Works

The automation responds to the smoke detector status binary_sensor.rauchmelder_rauch as soon as it changes to “on”. It checks whether someone is home. If so, the following actions take place:

  • Lights on: Several rooms are illuminated for better visibility.
  • Trigger automations: Additional actions like warnings or more light sources are forcibly activated.
  • Shutters up: All connected shutters open fully to provide escape routes and fresh air.
  • Door unlock: The front door is unlocked automatically – for residents or firefighters.

The automation uses the single mode to ensure it doesn't run multiple times in parallel. This prevents unwanted repetitions. 🔄

Presence Detection – Why It Matters

This automation only triggers if at least one resident is home. It checks the status of persons via Home Assistant’s presence detection, using entities like person.jimmybones, person.jessi, and person.philip.

Presence detection helps avoid unnecessary activations when the house is empty—keeping your home secure and saving energy. It relies on technologies like GPS tracking, Wi-Fi network presence, Bluetooth beacons, or smart home integrations (e.g., Apple HomeKit or Google Home).

If nobody is home, the automation does not activate, preventing the door from unlocking or shutters opening unnecessarily.

Home Assistant YAML Automation (only if someone is home)

Copy the following YAML configuration into your automations.yaml file or use the Home Assistant UI editor. Adjust the entity_id values to match your system. 


alias: Smoke Alarm Trigger – Lights, Door, and Shutters (only if someone is home)
description: >
  When smoke is detected, turns on lights, triggers automations, opens shutters,
  and unlocks the door – but only if someone is home.
trigger:
  - platform: state
    entity_id: binary_sensor.rauchmelder_rauch
    to: "on"

condition:
  - condition: or
    conditions:
      - condition: state
        entity_id: person.jimmybones
        state: home
      - condition: state
        entity_id: person.jessi
        state: home
      - condition: state
        entity_id: person.philip
        state: home

action:
  - service: automation.trigger
    target:
      entity_id:
        - automation.wohnzimmer_an
        - automation.philip_an
    data:
      skip_condition: true

  - service: light.turn_on
    target:
      entity_id:
        - light.nachttisch_2
        - light.maya_decke
        - light.maya_ecklampe_outlet
        - light.kuche_links_outlet
        - light.kueche_re_outlet
        - light.badezimmer_led_2

  - service: cover.open_cover
    target:
      entity_id:
        - cover.rolladen_kuche_shutter
        - cover.smart_roller_shutter_25031175141681700803c4e7ae14fb3f_shutter
        - cover.smart_roller_shutter_25051532660378700801c4e7ae174b1c_shutter
        - cover.smart_roller_shutter_25031176599363700803c4e7ae14fa40_shutter
        - cover.smart_roller_shutter_25031108139493700803c4e7ae14fae0_shutter
        - cover.smart_roller_shutter_25051501166180700801c4e7ae174b1a_shutter
        - cover.smart_roller_shutter_25031162889772700803c4e7ae14fa9e_shutter
        - cover.smart_roller_shutter_25051528484458700801c4e7ae174b23_shutter

  - service: lock.unlock
    target:
      entity_id: lock.aqara_smart_lock_u200

mode: single

Setup in Home Assistant

Step 1: Open Home Assistant and go to Settings > Automations or edit your automations.yaml file.

Step 2: Paste the YAML code above or use the UI to create it.

Step 3: Ensure all entity_id values match your devices.

Step 4: Reload automations or restart Home Assistant.

This automation greatly enhances the safety of your home – especially in critical situations where every second counts. ✅

It’s fast, well-structured, and a must-have for any smart-secured home. 🔥🚪💡