Motion Sensor Light with Initial State Memory

Blueprints Exchange
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Open your Home Assistant instance and show the blueprint import dialog with a specific blueprint pre-filled.

Blueprint YAML 
blueprint:
  name: Motion Sensor Light with Initial State Memory
  description: > 
    ## Description

    Turn on a light when motion is detected. When motion is no longer detected, the light is either turned off or is returned to 
    its initial state.

    If the "Wait time" value is set, the automation will wait the specified amount of seconds after motion is no longer detected
    before returning the light to its previous state.

    ## Options

      - Wait Time: If set, the automation will wait the specified amount of seconds after motion is no longer detected
        before returning the light to its previous state. Setting this value to `0` will result in the light being immediately
        turned off after motion stops.
      
      - State Memory: If enabled, the light is returned to its initial state when motion is no longer detected.

    ## Use Case

    The default Motion Activated Light blueprint included by default with Home Assistant operates such that the target light will
    be turned off regardless of the state it was in at the time of motion starting. 

    Consider a scenario where you have a hallway night light that is normally enabled only when motion is detected. If you wished 
    to leave the light on all night on some given day, and you were the default blueprint. If motion were detected at any point in
    the night, the light would then be turned off after motion stops.

    By using this blueprint, you can choose to have the light return to its original state (i.e. on) when motion is no longer detected.

    ## State Memory Behaviour

    The following table indicates the effect that state memory has on the light entity's state.

    - State Memory:`off`, Initial light state:`off` => State after motion stops:`off`

    - State Memory:`off`, Initial light state:`on` => State after motion stops:`off`

    - State Memory:`on`,  Initial light state:`off` => State after motion stops:`off`

    - State Memory:`on`,  Initial light state:`on` => State after motion stops:`on`
  domain: automation
  source_url: https://github.com/travipross/ha-blueprints/blob/fb9d156d7983a168de3183f9f0ac0a5b13d59e5e/automations/motion-sensor-light-initial-state.yaml
  author: travipross
  input:
    motion_entity:
      name: Motion Sensor
      selector:
        entity:
          filter:
            - device_class: occupancy
              domain: binary_sensor
            - device_class: motion
              domain: binary_sensor
    light_entity:
      name: Light
      selector:
        entity:
          filter:
            - domain: light
    no_motion_wait:
      name: Wait time
      description: Time to leave the light on after last motion is detected.
      default: 120
      selector:
        number:
          min: 0
          max: 3600
          unit_of_measurement: seconds
    state_memory:
      name: State Memory
      description: Return to the intial state after motion is stopped.
      default: true
      selector:
        boolean:
    timeout:
      name: Automation Timeout (Minutes)
      description: >
        Amount of time for the automation to wait for motion to stop. If this is exceeded, the automation will abandon any state memory 
        and wait to run again next time motion is detected.
      default: 360
      selector:
        number:
          min: 0
          max: 1440
          unit_of_measurement: minutes
variables:
  light_entity: !input light_entity
  state_memory: !input state_memory
triggers:
  - trigger: state
    entity_id:
      - !input motion_entity
    from: "off"
    to: "on"
conditions: []
actions:
  - variables:
      initial_light_state: "{{ states(light_entity) | bool }}"
  - action: light.turn_on
    target:
      entity_id: !input light_entity
  - wait_for_trigger:
      - trigger: state
        entity_id:
          - !input motion_entity
        to: "off"
        for:
          seconds: !input no_motion_wait
    continue_on_timeout: false
    timeout:
      minutes: !input timeout
  - if:
      - condition: not
        conditions:
          - and:
            - condition: template
              value_template: "{{ initial_light_state }}"
            - condition: template
              value_template: "{{ state_memory | bool }}"
    then:
      - action: light.turn_off
        target:
          entity_id: !input light_entity
mode: single

Description

Turn on a light when motion is detected. When motion is no longer detected, the light is either turned off or is returned to
its initial state.

If the “Wait time” value is set, the automation will wait the specified amount of seconds after motion is no longer detected
before returning the light to its previous state.

Options

  • Wait Time: If set, the automation will wait the specified amount of seconds after motion is no longer detected
    before returning the light to its previous state. Setting this value to 0 will result in the light being immediately
    turned off after motion stops.
  • State Memory: If enabled, the light is returned to its initial state when motion is no longer detected.

Use Case

The default Motion Activated Light blueprint included by default with Home Assistant operates such that the target light will
be turned off regardless of the state it was in at the time of motion starting.

Consider a scenario where you have a hallway night light that is normally enabled only when motion is detected. If you wished
to leave the light on all night on some given day, and you were the default blueprint. If motion were detected at any point in
the night, the light would then be turned off after motion stops.

By using this blueprint, you can choose to have the light return to its original state (i.e. on) when motion is no longer detected.

State Memory Behaviour

The following table indicates the effect that state memory has on the light entity’s state.

  • State Memory:off, Initial light state:off => State after motion stops:off
  • State Memory:off, Initial light state:on => State after motion stops:off
  • State Memory:on, Initial light state:off => State after motion stops:off
  • State Memory:on, Initial light state:on => State after motion stops:on

Changelog

  • 2025-02-17 (0ff151d): Removed from: on from trigger in order to not miss events from motion sensor devices that sometimes transition to on directly from a sleeping state (e.g. battery powered zigbee motion sensors).