Trying to run an automation to match one light’s state (on/off/dim) to another’s. Have this currently:
alias: Sync cabinet lights with sink light
if:
- condition: device
type: is_on
device_id: [something]5710
entity_id: [something]a438
domain: light
then:
- type: turn_on
device_id: [something]b447
entity_id: [something]470f
domain: light
brightness_pct: 100
else:
- type: turn_off
device_id: [something]b447
entity_id: [something]470f
domain: light
That works fine to turn the lights on or off, and I have triggers in the automation for that and changes in brightness. But using a non-static number for brightness_pct (yes, I know I’ll probably have to math the 0-100 scale instead of 0-255) is giving me trouble. When I try something like this:
alias: Sync cabinet lights with sink light
if:
- condition: device
type: is_on
device_id: [something]5710
entity_id: [something]a438
domain: light
then:
- type: turn_on
device_id: [something]b447
entity_id: [something]470f
domain: light
brightness_pct: {{state_attr("light.kitchen_sink_ceiling", "brightness")}}
else:
- type: turn_off
device_id: [something]b447
entity_id: [something]470f
domain: light
I have also tried {{states.light.kitchen_sink_ceiling.attributes.brightness}} instead. Both seem to have the correct value when I play around in the developer tools. But when I put it in the automation, I get an error that a float value was expected. I see some similar issues online, but it always seems to be in a different context and people fix it by changing some value I never had.
Oh… I think you also need double quotes around template brackets when used as the value in a service call…? Which conflicts with the quotes around the entity and attribute so just use single quotes there.
brightness_pct: "{{state_attr('light.kitchen_sink_ceiling', 'brightness')}}"Just whipped up a partial example with my living room lights. It is missing a trigger and an else butI focused on theactionyou had trouble with.
Using brightness instead of brightness_pct seemed simpler. (Or at least if both can usethe same attribute…)
alias: Example description: "" trigger: [] condition: - condition: state entity_id: light.living_room_floor_lamp_1 state: "on" action: - action: light.turn_on metadata: {} data_template: brightness: "{{state_attr('light.living_room_floor_lamp_1', 'brightness')}}" target: entity_id: light.living_room_floor_lamp_2 mode: single