Home Assistant Blueprint: IKEA E1743 Trådfri on/off switch (ZHA)

ikea_tradfri_e1743_light.yaml

blueprint:
  name: IKEA E1743 Trådfri on/off switch (ZHA)
  description: Dim or turn on/off a light using the IKEA Trådfri E1743 switch remote. Works with ZHA.
  author: oscarb
  domain: automation

  input:
    light:
      name: Light 
      description: Entiy ID of light to control 
      selector:
        entity: 
          filter: 
            domain: light
          multiple: false
    remote: 
      name: Trådfri on/off switch 
      description: The IKEA Trådfri on/off switch remote to use 
      selector: 
        device:
          filter: 
            integration: zha
            manufacturer: IKEA of Sweden
            model: TRADFRI on/off switch
          multiple: false
    fade_speed:
      name: Fade speed
      description: The speed used for dimming the light )brightness steps per second)
      default: 80
      selector:
        number:
          min: 1
          max: 255
          unit_of_measurement: brightness steps/second
    default_brightness:
      name: Default brightness
      description: The brightness to set when turning on the light
      default: 128
      selector:
        number:
          min: 1
          max: 255

mode: restart  
max_exceeded: silent

variables:
  input_light: !input light
  fade_speed: !input fade_speed

trigger:
  - platform: event
    event_type: zha_event
    event_data:
      device_id: !input remote
action:
  - choose:
    - conditions: "{{ trigger.event.data.command == 'on' }}"
      sequence:
        - service: light.turn_on
          entity_id: !input light
          data:
            brightness: !input default_brightness
    - conditions: "{{ trigger.event.data.command == 'off' }}"
      sequence:
        - service: light.turn_off
          entity_id: !input light
    - conditions: "{{ trigger.event.data.command in ['move', 'move_with_on_off'] }}"
      sequence:
        - alias: Set up variables
          variables:
            brightness_from: "{{ state_attr(input_light, 'brightness') | int(0) }}"
            brightness_target: "{{ 0 if trigger.event.data.command == 'move' else 255 }}"
            brightness_delta: "{{ (brightness_target - brightness_from) | abs }}"
            brightness_direction: "{{ -1 if trigger.event.data.command == 'move' else 1 }}"
            transition_time: "{{ brightness_delta / fade_speed }}"
        - service: light.turn_on
          entity_id: !input light
          data:
            transition: "{{ transition_time }}"
            brightness: "{{ brightness_target }}"
        - wait_for_trigger:
          - platform: event
            event_type: zha_event
            event_data:
              device_id: !input remote
              command: stop_with_on_off
          timeout: "{{ transition_time }}"
          continue_on_timeout: false
        - alias: Estimate current brightness
          variables:
            brightness_current: > 
              {{ brightness_from + 
                  brightness_direction * fade_speed * (wait.trigger.event.time_fired - trigger.event.time_fired).total_seconds() 
              }}
        - service: light.turn_on
          entity_id: !input light
          data:
            brightness: "{{ brightness_current }}"