Is it possible to do a progress bar with WLED?

skycryer · July 5, 2022, 9:30am

Is it possible to do a progress bar with WLED? Like plan a light strip under my kitchen, and under the dishwasher I want to do it for example red when running, green when done. SO I know that can be done with segments on an addressable light strip. But is it possible instead doing the part solid red when running making it like a progress bar, So it gets more green lights until it is complete and solid green.

crlogic · July 5, 2022, 12:20pm

Select the colors you want and give the Percent effect a go. Then use the intensity slider to change the progress.

fab_ha_git · August 3, 2022, 1:05am

how to do thisssss? c’mon

tom_l · August 3, 2022, 1:40am

Set the effect to “percent”.
Set the intensity to the percent you want lit (0 to 100%).

e.g.
EDIT: removed. This automation used an incorrect service call. See here for the correct version: Is it possible to do a progress bar with WLED? - #17 by tom_l

If you have particular colours in mind you could save the colours and effect as a preset in the WLED device and set that too:

https://www.home-assistant.io/integrations/wled/#activating-a-preset

fab_ha_git · August 3, 2022, 2:27am

mesmerizing…
thank you, mr. tom_l !!

STATERA · October 22, 2022, 10:54am

My sensor is not in a percentage. It is a sensor for distance. I would like my “loading bar” to grow as the device gets closer. If I follow your config then it will grow equal to the distance. How do I reverse it?

tom_l · October 22, 2022, 10:57am

 value: "{{ ( 100 - 100 * states('sensor.some_255_max_sensor')|float(0) / 255 )|round(0)|int(0) }}"

STATERA · October 22, 2022, 11:05am

Thank you!

alphabeta279 · April 5, 2023, 8:53pm

Have been trying to do this, however my WLED setup just doesn’t seem to change!

alias: Dragon LED - Battery
description: ""
trigger:
  - platform: state
    entity_id:
      - sensor.battery_percent_2
condition: []
action:
  - service: select.select_option
    data:
      option: "{{ states('sensor.battery_percent_2') }}"
    target:
      entity_id: number.wled_dragon_segment_1_intensity
mode: single

Tested:

Automation triggers correctly on battery state change
Manually running the automation doesn’t work
Have checked and battery value is coming through as a simple number (ie no % symbol or anything)
manually changing the ‘% of fill’ value in WLED works perfectly

Can I check is ‘intensity’ the right entity to target in HA to update the ‘% of fill’ value?

In the logs I get:
2023-04-05 21:55:59.360 INFO (MainThread) [homeassistant.components.automation.dragon_led_battery] Dragon LED - Battery: Running automation actions
2023-04-05 21:55:59.360 INFO (MainThread) [homeassistant.components.automation.dragon_led_battery] Dragon LED - Battery: Executing step call service
2023-04-05 21:55:59.364 WARNING (MainThread) [homeassistant.helpers.service] Unable to find referenced entities number.wled_dragon_segment_1_intensity or it is/they are currently not available

jjvelar · April 29, 2023, 12:44pm

Hi!
Is anyone able to make this work?
Service is working OK but when the sensor value is 25 (i.e. 25%), I get no light at all.
When value is 50, I get 25% of the light.
When value is 75, I get 66% of the light.
When value is 100, I get 100% of the light.
That’s weird, isn’t it?!?!
My WLED version is v0.14.0-b1 “Hoshi” and in the Home Assistant Automation I am using service “number.set_value”.
Thanks!

zigomatic · June 28, 2023, 8:31pm

May be try without the service but via the HTTP Request API - WLED Project or JSON API - WLED Project or over mqtt

jjvelar · July 3, 2023, 7:29am

will try. thanks!

2006yamahar6 · July 31, 2023, 8:18am

Did you ever find a solution for this? [quote=“jjvelar, post:10, topic:436929, full:true”]
Hi!
Is anyone able to make this work?
Service is working OK but when the sensor value is 25 (i.e. 25%), I get no light at all.
When value is 50, I get 25% of the light.
When value is 75, I get 66% of the light.
When value is 100, I get 100% of the light.
That’s weird, isn’t it?!?!
My WLED version is v0.14.0-b1 “Hoshi” and in the Home Assistant Automation I am using service “number.set_value”.
Thanks!
[/quote]

tom_l · July 31, 2023, 8:38am

Do you have the correct number of LEDs set in your string?

jjvelar · July 31, 2023, 10:29am

Thanks for replying.
Yes, I do.
Any other thoughts?

tom_l · July 31, 2023, 10:35am

Try asking on the WLED discord channel.

tom_l · December 20, 2023, 12:05pm

Make sure you are using * Color 1 colour pallet (any Fx colour selected) with the Bg set to black.

And change your automation to this:

alias: Dragon LED - Battery
description: ""
trigger:
  - platform: state
    entity_id:
      - sensor.battery_percent_2
    not_to:
      - unknown
      - unavailable
condition: 
  - condition: template
    value_template: "{{ 0 <= states('sensor.battery_percent_2')|int <= 100 }}"
action:
  - service: number.set_value
    data:
      value: "{{ states('sensor.battery_percent_2')|int }}"
    target:
      entity_id: number.wled_dragon_segment_1_intensity
mode: single

You can not go over 100% or the display does odd things so I put in a condition. Also the original automation I wrote used the wrong service.

danishru · April 5, 2025, 4:28pm

Hey everyone!
If you’re still exploring ways to implement a progress bar with WLED — I wanted to share another approach that gives you full control without relying on number.set_value or fighting with effect quirks.

I built an integration called WLED Live View Proxy that lets you send raw JSON API commands to WLED via WebSocket — so you can control exactly how the strip looks, including the percent effect, color, background, palette, and brightness — all in one go, directly from automations.

Here’s an example using dynamic intensity from a sensor (battery level in this case — you can use any percentage-like sensor):

action: wled_liveviewproxy.send_command
data:
  targets:
    entity_id: light.wled_strip
  command: {on: true, seg: [{id: 0, fx: 98, pal: 0, col: ["00ff00", "000000"], bri: 255, ix: "{{ states('sensor.bathroom_door_1_battery') | int(0) }}"}]}

This sets:

Foreground color to green, background to black
Brightness to 100%
Progress fill based on the value of sensor.bathroom_door_1_battery (example)

No YAML escaping, no REST tricks — just direct control.
More info and setup here:
WLED Live View Proxy for Home Assistant

MABeatty1978 · April 11, 2025, 10:29pm

An update to this…0-100 puts the bar 0-100 from the left to right. 100-200 puts the bar from right to left. Above 200 does nothing.

tom_l · April 11, 2025, 10:46pm

It’s good to have choice but installing a 3rd party integration and setting up a complicated command seems a lot more hassle to me than just using the controls already exposed by WLED (the number entity for value and select entity for effect).

Also nowhere was this needed: