Automation on multiple entities

Configuration
1 
...automation.yaml

- alias: "Set Brightness Level from Slider"
  hide_entity: False
  trigger:
    platform: state
    entity_id: input_slider.lights_brightness_level
  action: >-
      service: light.turn_on
      {%- for state in states.light if state.state == "on" -%}
        entity_id: {{ state.entity_id }}
        data_template:
          brightness: {{ (trigger.to_state | int * 255 / 100) | round }}
      {%- endfor -%}

I have this automation, but it keeps throwing an error. Am I misunderstanding how to use templates? Essentially I’m trying to make a brightness slider, such that whenever it is moved, it turns all lights that are ON to that level of brightness.

2

Templates work only within values (and then only values that support templating), not as wrappers for code within YAML.

3

That’s a shame since that would be an awesome automation. :slight_smile:

4

Do you think this sort of automation could be done then? I have a great understanding of python, but it doesn’t exactly convert into templating. There’s a TON of potential within the current automation and templating system, but I feel like if it was supported for all parts of the automation, that would bring automation to an entirely different level.

I’m sure I could do this for all lights, but if the light is off, I don’t want it being turned on.

5

Looks like you might be a good candidate for AppDaemon. It’s HASS event module for Python programmers.

1 Like
6

This sounds like a great alternative! I’ve just got to get it working now. Thank you ih8gates!

7

& @ih8gates

Heyo! I got this working pretty simply when I was able to play around in python. I’m much more comfortable there.

- alias: "Set Brightness Level from Slider"
  hide_entity: False
  trigger:
    platform: state
    entity_id: input_slider.lights_brightness_level
  action: >-
      service: light.turn_on
      {%- for state in states.light if state.state == "on" -%}
        entity_id: {{ state.entity_id }}
        data_template:
          brightness: {{ (trigger.to_state | int * 255 / 100) | round }}
      {%- endfor -%}

turned very easily into …

class SliderBrightnessLevel(appapi.AppDaemon):

    def initialize(self):
        self.listen_state(self.adjust_bright_level, 'input_slider.lights_brightness_level')
                                    #entity can be just "light" to listen to all lights

    def adjust_bright_level(self, entity, attribute, old, new, kwargs):
        self.log("{}.{} changed from {} to {}.".format(entity, attribute, old, new))

        for entity_id, state in self.get_datapoint_from_all(datapoint='state', service='light'):
            if state == 'on':

                # brightness is in 0 - 255, constrain to 255 to get percentage-of
                blevel = round(int(float(new)) * 255 / 100)
                
                self.log("light.{} set to {}.".format(entity_id, blevel))
                self.turn_on(entity_id, brightness=blevel)
    
    # helper functions
    def get_datapoint_from_all(self, datapoint, service):
        all_things = self.get_state(service)

        for entity_id in all_things:
            for data in all_things[entity_id]:
                if data == datapoint:
                    yield entity_id, all_things[entity_id][data]

and the panel I control it from looks like this. :slight_smile:

2 Likes