Turn off light after x minutes at certain brightness

Configuration
21

Glad you figured out the cause and were able to get the switch to update correctly :slight_smile:

Can you test each part of the templates in the dev tools template editor individually to verify they are giving the expected results?

Does this result in true or false during the proper conditions? It should be true when the light hasn’t been adjusted for greater than duration set on the slider. It should be false if it was adjusted more recently than the time set on the slider.

{{(as_timestamp (now()) -as_timestamp (states.light.dining_room_light_level_11_0.last_updated))|float >= (states.input_slider.off_delay.state|float * 60)}}

Does this result in true when the brightness level is below 50%?

{{(states.light.dining_room_light_level_11_0.attributes.brightness | float <= 50)}}

EDIT: Also, make sure the light and input slider names are correct in the templates.

1 Like
22

As far as I can tell the parts are working as expected. Though the “last_update” (your first condition) seems to be returning true regardless but I’m wondering if that’s just a lag in my changing the state and that state updating in HASS since I have the slider at 1 minute. Pics:

11.PNG740×262 15.7 KB
10.PNG754×345 25.3 KB

23

So it should be triggering if changing from false to true. Are you able to cause conditions to make it result in false? I’m wondering if for some reason they are always returning true. It shouldn’t trigger unless moving from false to true. Also, we could try to take the input slider out for testing to simplify.

If you want to set a fixed value in seconds instead of using the slider, replace “(states.input_slider.dr_off_delay.state|float * 60)” with the number of seconds.

1 Like
24

Ok, I swapped out the slider for the time being to this code:

{{ (as_timestamp (now()) -as_timestamp (states.light.dining_room_light_level_11_0.last_updated))|float >= 300 and (states.light.dining_room_light_level_11_0.attributes.brightness | float <= 50) }}

It was false for ~5 minutes (didn’t time it exactly), then flipped to true. However the light remained on.

I feel like I’m missing something really stupid here…

25

Me too. I just realized, Silly me :blush: You want the switch to turn off. Change light.turn_off to switch.turn_off in the action.

1 Like
26

Still no joy. :frowning: I feel like we are close, just not quite there.

27

Sorry for the late response. Just came across another post that made me think of your situation. Part of the post said, [quote=“ih8gates, post:2, topic:12595”]
I have lots of trouble getting template triggers to work for me.
[/quote]
and

Any errors in your log that might have to do with the automation? I noticed a hyphen in front of platform in the trigger that isn’t needed because it is’nt a list. Might try removing that and verifying the formatting before trying the suggestion below.

The the suggestion above didn’t work, maybe the following will. Still trial and error like before so not sure if this will do it. Fingers crossed.

sensor:
  - platform: template
    sensors:
      brightness_trigger:
        value_template: '{{ (as_timestamp (now()) -as_timestamp (states.light.dining_room_light_level_11_0.last_updated))|float >= (states.input_slider.off_delay.state|float * 60) and  (states.light.dining_room_light_level_11_0.attributes.brightness | float <= 50) }}'
        friendly_name: 'Sun angle'

  - alias: 'Turn off dining room light when at <50 brightness for set duration'
    trigger:
      platform: state
      entity_id: sensor.brightness_trigger
      to: 'true'
    condition:
      condition: template
      value_template: '{{ states.light.dining_room_light_level_11_0.attributes.brightness | float <= 50 }}'
    action:
      service: light.turn_off
      entity_id: light.dining_room_light_level_11_0
28

OK, So the post above will not work either but I have finally had time to sit down and try this myself with one of my automations. I found a post that had the solution here courtesy of @ReneTode. He also explains in that thread why what I was recommending doesn’t work and why this solution does. My brief understanding is you need a state change for a trigger to be tripped. It wont simply monitor the duration of a previous change. By creating the new sensor, it creates a state change every minute causing the template to be re-analyzed. I was able to successfully use this in an automation. Essentially the difference is this compares against a sensor with the system time that updates every minute instead of comparing against the system time directly.

sensors:
  - platform: time_date
    display_options:
      - 'date_time'

  - alias: 'Turn off dining room light when at <50 brightness for set duration'
    trigger:
      platform: template
      value_template: '(as_timestamp(states.sensor.date__time.last_updated)) -as_timestamp (states.light.dining_room_light_level_11_0.last_updated) >= 300 and (states.light.dining_room_light_level_11_0.attributes.brightness | float <= 50)'
    condition:
      condition: template
      value_template: '{{ states.light.dining_room_light_level_11_0.attributes.brightness | float <= 50 }}'
    action:
      service: light.turn_off
      entity_id: light.dining_room_light_level_11_0
2 Likes
29

Hey @Kbeesnees thanks so much for this! I would love to test tonight but I sprained my ankle pretty bad so moving around and playing isn’t easy. :confused: I should be able to test tomorrow so I’ll let you know what I come up with. Thanks again and I really appreciate you working with me on this!!!