Hi everybody,
UPDATE: in case anybody else is experiencing this problem, I cross-posted this in the project’s github issue tracker. I might get a reply there sooner than here, or sooner here than there, so I linked this post in the github issue as well as linking the issue tracker in this post…
I am using led_esp8266_mqtt_json_lights with a nodeMCU and WS2812 and integrated them into Home Assistant as described in the wiki (yaml below). I can toggle this light just fine, and use it in automations, scripts, and scenes; but when I open the popup box that lets you pick and change color, brightness, effects, lovelace crashes. On desktop, I’ll eventually get a notification that a script on this website is slowing down the browser (options wait or stop script; when I wait the dialog will pop up later, it will not work at all); on mobile browser, nothing will work and I’ll have to manually quit the browser and open it again to access Home Assistant again.
I am using Firefox on both desktop and mobile, but I have also tried the Home Assistant android app as well as other browsers (even resorted to installing Chrome on my Android), but the problem occurs there as well.
This entire code block is taken from their wiki, and it should work. However, I also have some ESPhome controlled LED strips, which work fine; I used to have a Tasmota one as well, that also worked without any trouble. Only this one will freeze my lovelace.
I have tried deleting some effects from the effect_list (assuming those might just have been too many), but that didn’t work; also, it’d seem pretty strange to me if a list could break Home Assistant…
Do you have an idea how I could fix this? Thank you for your input 
light:
platform: mqtt
schema: json
name: 'SZ LED Seite'
state_topic: 'light/led'
command_topic: 'light/led/set'
availability_topic: 'light/led/LWT'
payload_available: 'Online'
payload_not_available: 'Offline'
effect: true
effect_list:
- static
- blink
- breath
- color wipe
- color wipe inverted
- color wipe reverse
- color wipe reverse inverted
- color wipe random
- random color
- single dynamic
- multi dynamic
- rainbow
- rainbow cycle
- scan
- dual scan
- fade
- theater chase
- theater chase rainbow
- running lights
- twinkle
- twinkle random
- twinkle fade
- twinkle fade random
- sparkle
- flash sparkle
- hyper sparkle
- strobe
- strobe rainbow
- multi strobe
- blink rainbow
- chase white
- chase color
- chase random
- chase rainbow
- chase flash
- chase random
- chase rainbow white
- chase blackout
- chase blackout rainbow
- color sweep random
- running color
- running red blue
- running random
- larson scanner
- comet
- fireworks
- fireworks random
- merry christmas
- fire flicker
- fire flicker soft
- fire flicker intense
- circus combustus
- halloween
- bicolor chase
- tricolor chase
- icu
brightness: true
rgb: true
optimistic: false
qos: 0
input_number:
led_effect_speed:
name: 'LED Effect Speed'
initial: 50 # This is the default speed
mode: slider
min: 10 # ######################################
max: 500 # Feel Free to adjust these as you like
step: 5 # ######################################
automation:
- id: 'led8266'
alias: "[Licht] LED8266 Speed"
action:
- alias: Set LED Lights Effect Speed
service: mqtt.publish
data_template:
topic: light/led/set
payload: '{"speed":{{ trigger.to_state.state | int }}}'
trigger:
- platform: state
entity_id: input_number.led_effect_speed