Altered version of https://community.home-assistant.io/t/zha-ikea-tradfri-on-off-switch-incl-dimmer/255412

rk_ikea_tradfri_onoff.yaml

blueprint:
  name: RK ZHA - IKEA Tradfri on/off switch
  description: |
    "Control your light(s) with IKEA Tradfri on/off switch
    
    Select the Tradfri remote and your lights.
    You can turn the lights On / Off, or hold the buttons to dim the lights"
  domain: automation
  input:
    remote:
      name: Remote
      description: The remote that will control the lights
      selector:
        device:
          integration: zha
          manufacturer: 'IKEA of Sweden'
          model: 'TRADFRI on/off switch'
    light:
      name: Light
      description: The lights that will be controlled
      selector:
        target:
          entity:
            domain: light
mode: restart
trigger:
- platform: event
  event_type: zha_event
  event_data:
    device_id: !input 'remote'
action:
- variables:
    command: "{{ trigger.event.data.command }}"
    cluster_id: "{{ trigger.event.data.cluster_id }}"
    endpoint_id: "{{ trigger.event.data.endpoint_id }}"
- choose:
  - conditions:
    - "{{ command == 'on' }}"
    - "{{ cluster_id == 6 }}"
    - "{{ endpoint_id == 1 }}"
    sequence:
    - service: light.turn_on
      target: !input 'light'
      data:
        transition: 1
        brightness_pct: 100
  - conditions:
    - "{{ command == 'off' }}"
    - "{{ cluster_id == 6 }}"
    - "{{ endpoint_id == 1 }}"
    sequence:
    - service: light.turn_off
      target: !input 'light'
      data:
        transition: 1
  - conditions:
    - "{{ command == 'move_with_on_off' }}"
    - "{{ cluster_id == 8 }}"
    - "{{ endpoint_id == 1 }}"
    sequence:
      repeat:
        while:
        - condition: template
          value_template: "{{ repeat.index < 10 }}"
        sequence:
        - service: light.turn_on
          target: !input 'light'
          data:
            transition: 1
            brightness_step_pct: 10
        - delay: 1
  - conditions:
    - "{{ command == 'move' }}"
    - "{{ cluster_id == 8 }}"
    - "{{ endpoint_id == 1 }}"
    sequence:
      repeat:
        while:
        - condition: template
          value_template: "{{ repeat.index < 10 }}"
        sequence:
        - service: light.turn_on
          target: !input 'light'
          data:
            transition: 1
            brightness_step_pct: -10
        - delay: 1
  - conditions:
    - "{{ command == 'stop' }}"
    - "{{ cluster_id == 8 }}"
    - "{{ endpoint_id == 1 }}"
    sequence:
    - service: light.turn_on
      target: !input 'light'