Input Slider show light brightness in percent? (not 0 - 255)

Configuration
1

I have some input sliders to adjust light brightness, and when moving the slider it shows the brightness level from 0 to 255.

input slider

Is there any way to change this to show the brightness from 0 to 100%? (while still moving the range from 0 to 255 in the background)

I’m guessing it would be possible with some sort of template, but have no idea how.

2

Basically now you have an input slider called brightness that goes from 0-255, and an automation that changes light brightness when input slider state changes.

You could modify your slider to range from 0 to 100 and in your automation instead of having the slider from 0-255

 data_template:
   entity_id: light.bedroom
   brightness: '{{ states.input_slider.brightness.state | int }}'

You could have something with a slider from 0-100 like (not sure about syntax, but that’s the idea)

 data_template:
   entity_id: light.bedroom
   brightness: '{{ states.input_slider.brightness.state | float multiply(2.55) | round(0) }}'
3

Thanks for the help!

I added this this to my HA, but it came back with an error message

- alias: "Office Light Brightness"
  hide_entity: true
  trigger:
    platform: state
    entity_id: input_slider.office_light_brightness
  action:
  - service: light.turn_on
    data_template:
      entity_id: light.office_light
      brightness: '{{ states.input_slider.brightness.state | float multiply(2.55) | round(0) }}'

The error message said:

2017-06-30 10:12:48 ERROR (MainThread) [homeassistant.config] Invalid config for [automation]: invalid template (TemplateSyntaxError: expected token ‘end of print statement’, got ‘multiply’) for dictionary value @ data[‘action’][0][‘data_template’][‘brightness’]. Got None.

Any idea how to fix that?

4

try (I tested it, it should work this time)

brightness: '{{ states.input_slider.brightness.state | int * 2.55 | round(0) }}'

note that you should also modify the name in the template, to match the name of your slider.
i.e. remplace states.input_slider.brightness.state with states.input_slider.office_light_brightness.state

4 Likes
5

Perfect, thanks a lot! :grinning:

6

Glad it worked. Flag my previous message as the solution, so It will directly show that the topic is solved

7

Done :+1:

Thanks again

1 Like
8

Hi,

I tried your solution, but I can’t get it to work. It still shows the value from 1 - 255 instead of 1 - 100.

My code is:

- alias: Lysstyrke
  trigger:
    platform: state
    entity_id: input_number.slider1
  action:
  - service: light.turn_on
    data_template:
      entity_id: light.spisebord
      brightness: '{{ states.input_number.slider1.state | int * 2.55 | round(0) }}'

Can you spot any issues here?

9 
action:
  - service: light.turn_on
    data_template:
      entity_id: light.spisebord

Off the top of my head move the entity_id line, so it’s like this:

action:
  - service: light.turn_on
    entity_id: light.spisebord
    data_template:
         brightness: '{{ states.input_number.slider1.state | int * 2.55 | round(0) }}'
1 Like
10

also it should be /2.55 and not *2.55 I think…
Perhaps as it has changed from input_slider to input_number, you are not required to put the | int.
Maybe just go with

brightness: '{{ states.input_number.slider1.state / 2.55 | round(0) }}'

11

you should limit your inputnumber to max 100, and then it should work

input_number:
  dimmer_slp1:
  name: brightness
  initial: 50
  min: 0
  max: 100
  step: 5
  mode: slider
1 Like
12

Here’s an example of my config, it might help?

input_number:
office_light_brightness:
  initial: 100
  min: 0
  max: 100
  step: 5

automation:
- alias: "Office Light Brightness"
  hide_entity: true
  trigger:
    platform: state
    entity_id: input_number.office_light_brightness
  action:
  - service: light.turn_on
    data_template:
      entity_id: light.office_light
      brightness: '{{ states.input_number.office_light_brightness.state | int * 2.55 | round(0) }}'
2 Likes