Change/randomise light colour on turn on

Hi, I have a light strip (wled) in my sons room. I’d like to set it up so it changes colour every time it is turned on. Is anyone able to point me in the right direction? Input select maybe?

this is what I use build it long time ago

I set them up so the MQTT and the lights have the same name

  wled_board:
    options:
      - all
      - xtree
      - string
    initial: all

image

image

now the script

wled_random_xtree:
  alias: Randomise WLED
  sequence:
  - service: mqtt.publish
    data_template:
      topic: wled/{{ states("input_select.wled_board") }}/api
      payload: '{{ [''[FX=00] Solid'',''[FX=01] Blink'',''[FX=02] Breathe'',''[FX=03]
        Wipe'',''[FX=04] Wipe Random'',''[FX=05] Random Colors'',''[FX=06] Sweep'',''[FX=07]
        Dynamic'',''[FX=08] Colorloop'',''[FX=09] Rainbow'',''[FX=10] Scan'',''[FX=11]
        Dual Scan'',''[FX=12] Fade'',''[FX=13] Chase'',''[FX=14] Chase Rainbow'',''[FX=15]
        Running'',''[FX=16] Saw'',''[FX=17] Twinkle'',''[FX=18] Dissolve'',''[FX=19]
        Dissolve Rnd'',''[FX=20] Sparkle'',''[FX=21] Dark Sparkle'',''[FX=22] Sparkle+'',''[FX=23]
        Strobe'',''[FX=24] Strobe Rainbow'',''[FX=25] Mega Strobe'',''[FX=26] Blink
        Rainbow'',''[FX=27] Android'',''[FX=28] Chase'',''[FX=29] Chase Random'',''[FX=30]
        Chase Rainbow'',''[FX=31] Chase Flash'',''[FX=32] Chase Flash Rnd'',''[FX=33]
        Rainbow Runner'',''[FX=34] Colorful'',''[FX=35] Traffic Light'',''[FX=36]
        Sweep Random'',''[FX=37] Running 2'',''[FX=38] Red & Blue'',''[FX=39] Stream'',''[FX=40]
        Scanner'',''[FX=41] Lighthouse'',''[FX=42] Fireworks'',''[FX=43] Rain'',''[FX=44]
        Merry Christmas'',''[FX=45] Fire Flicker'',''[FX=46] Gradient'',''[FX=47]
        Loading'',''[FX=48] In Out'',''[FX=49] In In'',''[FX=50] Out Out'',''[FX=51]
        Out In'',''[FX=52] Circus'',''[FX=53] Halloween'',''[FX=54] Tri Chase'',''[FX=55]
        Tri Wipe'',''[FX=56] Tri Fade'',''[FX=57] Lightning'',''[FX=58] ICU'',''[FX=59]
        Multi Comet'',''[FX=60] Dual Scanner'',''[FX=61] Stream 2'',''[FX=62] Oscillate'',''[FX=63]
        Pride 2015'',''[FX=64] Juggle'',''[FX=65] Palette'',''[FX=66] Fire 2012'',''[FX=67]
        Colorwaves'',''[FX=68] BPM'',''[FX=69] Fill Noise'',''[FX=70] Noise 1'',''[FX=71]
        Noise 2'',''[FX=72] Noise 3'',''[FX=73] Noise 4'',''[FX=74] Colortwinkle'',''[FX=75]
        Lake'',''[FX=76] Meteor'',''[FX=77] Smooth Meteor'',''[FX=78] Railway'',''[FX=79]
        Ripple'',''[FX=80] Twinklefox'',''[FX=81] Twinklecat'',''[FX=82] Halloween
        Eyes'']|random }}'
  - service: mqtt.publish
    data_template:
      topic: wled/{{ states("input_select.wled_board") }}/api
      payload: '{{ [''[FP=00] Default'',''[FP=01] Random Cycle'',''[FP=02] Primary
        color'',''[FP=03] Based on primary'',''[FP=04] Set colors'',''[FP=05] Based
        on set'',''[FP=06] Party'',''[FP=07] Cloud'',''[FP=08] Lava'',''[FP=09] Ocean'',''[FP=10]
        Forest'',''[FP=11] Rainbow'',''[FP=12] Rainbow bands'',''[FP=13] Sunset'',''[FP=14]
        Rivendell'',''[FP=15] Breeze'',''[FP=16] Red & Blue'',''[FP=17] Yellowout'',''[FP=18]
        Analoguous'',''[FP=19] Splash'',''[FP=20] Pastel'',''[FP=21] Sunset 2'',''[FP=22]
        Beech'',''[FP=23] Vintage'',''[FP=24] Departure'',''[FP=25] Landscape'',''[FP=26]
        Beach'',''[FP=27] Sherbet'',''[FP=28] Hult'',''[FP=29] Hult 64'',''[FP=30]
        Drywet'',''[FP=31] Jul'',''[FP=32] Grintage'',''[FP=33] Rewhi'',''[FP=34]
        Tertiary'',''[FP=35] Fire'',''[FP=36] Icefire'',''[FP=37] Cyane'',''[FP=38]
        Light Pink'',''[FP=39] Autumn'',''[FP=40] Magenta'']|random }}'
  - service: mqtt.publish
    data_template:
      topic: wled/{{ states("input_select.wled_board") }}/api
      payload: SX={{ (range(0, 255)|random) }}

note the topic points to the input_select

have a time time select

  xled_time:
    name: XLED Ramdom Time Change
    options:
        - '01'
        - '02'
        - '03'
        - '04'
        - '05'
        - '10'
        - '15'
        - '20'
        - '25'
        - '30'
        - '40'
        - '50'
        - '60'

the script that run it

ramdom_xtree_lights:
  alias: Ramdom WLED lights Start
  sequence:
  - service: light.turn_on
    data_template:
      entity_id: light.wled_{{ states("input_select.wled_board") }}
  - service: script.turn_on
    data_template:
      entity_id: script.wled_random_xtree
  - delay: 00:{{ states.input_select.xled_time.state }}:00
  - service: script.turn_off
    data:
      entity_id: script.wled_random_xtree
  - service: script.turn_on
    data:
      entity_id: script.flash_loop_xtree

the script that loops it

flash_loop_xtree:
  alias: flash loop xtree
  sequence:
  - delay:
      seconds: 1
  - service: script.turn_on
    data:
      entity_id: script.ramdom_xtree_lights

and the script that STOP it

stop_flash_xtree_lights:
  alias: Stop Flash WLED Lights
  sequence:
  - service: script.turn_off
    data:
      entity_id: script.ramdom_xtree_lights
  - service: light.turn_off
    data_template:
      entity_id: light.wled_{{ states("input_select.wled_board") }}

there could be a beater way of doing it the Xtree lights LED I on the tree in 2018
so its just grown in time

also wanted to lean data_template: changing bits of the line

ie

    data_template:
      entity_id: light.wled_{{ states("input_select.wled_board") }}