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August 3, 2024 15:38
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| blueprint: | |
| name: Link On/Off State of Multiple Devices | |
| description: | | |
| ## Link On/Off State of Multiple Devices v1.0.0 | |
| Select multiple entities to link their on/off state. If any selected entity is turned on or off, the other selected entities will be sent a matching on or off command. | |
| 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 | |
| * [@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) | |
| * [@luma](https://community.home-assistant.io/u/luma) for the [latest modifications](https://community.home-assistant.io/t/link-on-off-state-of-multiple-devices/460310) | |
| domain: automation | |
| homeassistant: | |
| min_version: 2022.5.0 | |
| input: | |
| linked_entities: | |
| name: Entities to link | |
| selector: | |
| entity: | |
| multiple: true | |
| mode: queued | |
| max_exceeded: silent | |
| variables: | |
| linked_entities: !input 'linked_entities' | |
| trigger: | |
| - platform: state | |
| entity_id: !input 'linked_entities' | |
| condition: | |
| - condition: template | |
| value_template: '{{ trigger.to_state.state != trigger.from_state.state }}' | |
| - condition: template | |
| value_template: '{{ (trigger.to_state.state == "on") or (trigger.to_state.state == "off") }}' | |
| - condition: template | |
| value_template: '{{trigger.to_state.context.parent_id is none or (trigger.to_state.context.id != this.context.id and trigger.to_state.context.parent_id != this.context.id) }}' | |
| action: | |
| - service: homeassistant.turn_{{ trigger.to_state.state }} | |
| target: | |
| entity_id: '{{ expand(linked_entities) | selectattr("entity_id", "!=", trigger.entity_id) | map(attribute="entity_id") | list }}' |
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