Copying light state from one light to another

jetpacktuxedo · April 22, 2024, 4:20pm

I have a bunch of lights around the house that are in pairs and kept getting annoyed at having to manually try to get them to the same color/color temp. I looked around to see if there was already a script to do this somewhere, but all I could find was people suggesting automations to keep them always in sync which wasn’t really what I wanted.

So I put together this little script to copy the state from one to another. With some small tweaks it might also work for copying one light to multiple other lights, but I haven’t actually tried that yet.

gist.github.com

https://gist.github.com/jetpacktuxedo/17e7b46df59dff739f8aa58daf8a1fa2

copy_light.yaml

alias: Copy Light
sequence:
  - choose:
      - conditions:
          - condition: template
            value_template: "{{ state_attr(source, \"color_mode\") == \"color_temp\"}}"
        sequence:
          - service: light.turn_on
            data_template:
              entity_id: "{{ destination }}"

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nickrout · April 22, 2024, 8:42pm

Why not group them?

jetpacktuxedo · April 22, 2024, 8:52pm

Because I don’t generally want the on/off state of the lights to be synced. I could still make them a group just for setting color but use the individual controls for on/off, but this felt easier for my use case than having to think about when to use the group vs the individual