Home Assistant Blueprint

only-one-switch-on-at-any-one-time.yaml

blueprint:
  name: Only One Switch "On" At Any One Time
  description: '## It ensures "only one" entity (from the linked entities) is "On"
    at any given time (v1.0.2)

    Select multiple entities to link their single "On" exclusive state.


    If any selected entity is turned on, all the other entities in the group are turned
    off (allowing only one entity to be on at any one time)

    You can select any entity, but only entities supported by the `homeassistant.turn_on`
    or `homeassistant.turn_off` service calls will work.

    ### Requirements

    * All selected entities MUST suport `homeassistant.turn_on` and `homeassistant.turn_off`
    or errors will be logged and the blueprint will not work.

    * Requires Home Assistant 2022.5.0 or newer.


    ### Credits

    * [@luma](https://community.home-assistant.io/u/luma) for the [improved/fixed
    blueprint I used to created this variant](https://community.home-assistant.io/t/link-on-off-state-of-multiple-devices/460310)

    * [@adchevrier](https://community.home-assistant.io/u/adchevrier) for the [initial
    blueprint](https://community.home-assistant.io/t/synchronize-the-on-off-state-of-2-entities/259010)

    * [@hebus](https://community.home-assistant.io/u/hebus) for [this fantastic 
    template](https://community.home-assistant.io/t/synchronize-the-on-off-state-of-2-entities/259010/38)


    ### Change Log

    #### v1.0.1

    * fixed a mistake where I forgot to change `switch.turn_off` back to the generic
    `homeassistant.turn_off`.

    * fixed an issue where entities that were already off where being switched off
    again, causing unnecessary triggered actions.

    #### v1.0.2

    * added input to define the wait time before actioning the turning off of other
    entities after moment of trigger.

    * added input to define action turn off type `Consider State` and `Ignore State`'
  domain: automation
  homeassistant:
    min_version: 2022.5.0
  input:
    action_mode:
      name: Action Turn Off Type
      description: "This defines if the automation issues a turn off action for all
        other entities \nregardless of state, or if state is considered and only On
        entities are \nissued a turn off.\n"
      default: Consider State (Turn Off Only if On)
      selector:
        select:
          options:
          - Consider State (Turn Off Only if On)
          - Ignore State (Turn Off Again even if Off)
          multiple: false
          sort: false
          custom_value: false
    wait_time:
      name: Wait time before turning off other entities (seconds)
      description: Time to wait before turning off other entities, to ensure states
        are updated
      default: 0
      selector:
        number:
          min: 0.0
          max: 60.0
          unit_of_measurement: seconds
          step: 1.0
          mode: slider
    linked_entities:
      name: Entities to link
      selector:
        entity:
          multiple: true
  source_url: https://gist.github.com/rdeangel/566cd635bd645853f8ec8f14ec406f11
mode: queued
max_exceeded: silent
variables:
  action_mode: !input action_mode
  linked_entities: !input linked_entities
  wait_time: !input wait_time
trigger:
- platform: state
  entity_id: !input linked_entities
  to: 'on'
action:
- delay: '{{ wait_time }}'
- choose:
  - conditions:
    - condition: template
      value_template: '{{ action_mode == ''Consider State (Turn Off Only if On)''
        }}'
    sequence:
    - service: homeassistant.turn_off
      target:
        entity_id: '{{ expand(linked_entities) | selectattr(''state'', ''=='', ''on'')
          | selectattr(''entity_id'', ''!='', trigger.entity_id) | map(attribute=''entity_id'')
          | list }}

          '
  - conditions:
    - condition: template
      value_template: '{{ action_mode == ''Ignore State (Turn Off Again even if Off)''
        }}'
    sequence:
    - service: homeassistant.turn_off
      target:
        entity_id: '{{ expand(linked_entities) | selectattr(''entity_id'', ''!='',
          trigger.entity_id) | map(attribute=''entity_id'') | list }}'