ZHA - Philips Hue Dimmer Switch

hue_dimmer_switch.yaml

blueprint:
  name: ZHA - Philips Hue Dimmer Switch
  description: |
    Control lights with a Philips Hue Dimmer Switch.

    The top "on" button behaviour is adjustable. By default it behaves like this:
      - Press it while the light is off, and the light will turn on to the last set brightness.
      - Press it again while the light is on, the light will turn to the fixed brightness setting.
    
    Dim up/down buttons will change the brightness smoothly and can be pressed
    and hold until the brightness is satisfactory.

    The bottom "off" button will turn the light off.
    
    The "on" and "off" buttons can be assigned to an action when double
    or triple pressed. This allows you to assign e.g. a scene or something else.

    The minimum brightness setting will limit how low you can set the brightness. This will 
    prevent dimming down until the light turns off. Set this to zero to disable this feature.

  domain: automation
  source_url: https://gist.github.com/WarriorRocker/f6a44fe4d69dcc2edec605fe67d03378

  # Define the inputs for the blueprint
  input:
    remote:
      name: Philips Hue Dimmer Switch
      description: Pick either RWL020 (US) or RWL021 (EU)
      selector:
        device:
          integration: zha
          manufacturer: Philips
          entity:
            domain: sensor
            device_class: battery

    light:
      name: Light(s)
      description: >
        The light entity to control
        (only a single entity is supported; use light groups when needed)
      selector:
        entity:
          domain: light

    force_brightness:
      name: Force turn on brightness
      description: 'Force the brightness to the set level below, when the "on" button
        on the remote is pushed and lights turn on.'
      default: false
      selector:
        boolean: {}

    brightness:
      name: Brightness
      description: Brightness of the light(s) when turning on
      default: 255
      selector:
        number:
          min: 0
          max: 255
          mode: slider
          step: 1

    min_brightness:
      name: Min Brightness
      description: Minimum brightness of the light(s) when dimming
      default: 0
      selector:
        number:
          min: 0
          max: 255
          mode: slider
          step: 1

mode: restart
max_exceeded: silent

# Trigger the automation when the selected dimmer remote sends an event
# Also only trigger on cluster_id 64512. This ignores the 'old' events with cluster_id 8.
trigger:
- platform: event
  event_type: zha_event
  event_data:
    device_id: !input 'remote'
    cluster_id: 64512

variables:
  light: !input 'light'
  force_brightness: !input 'force_brightness'
  brightness: !input 'brightness'
  min_brightness: !input 'min_brightness'

action:
- variables:
    command: '{{ trigger.event.data.command }}'
    cur_brightness: '{{ state_attr(light, ''brightness'') | int }}'

- choose:
  - conditions: '{{ command == ''on_press'' }}'
    sequence:
    - choose:
      - conditions: '{{ force_brightness }}'
        sequence:
        - service: light.turn_on
          data:
            entity_id: !input 'light'
            transition: 1
            brightness: !input 'brightness'
      default:
      - service: light.turn_on
        data:
          entity_id: !input 'light'
          transition: 1

  - conditions: '{{ command == ''off_press'' }}'
    sequence:
    - service: light.turn_off
      data:
        entity_id: !input 'light'
        transition: 1

  - conditions: '{{ command == ''up_press'' }}'
    sequence:
    - service: light.turn_on
      data:
        entity_id: !input 'light'
        brightness_step: 25
        transition: 1

  - conditions: '{{ command == ''up_hold'' }}'
    sequence:
    - service: light.turn_on
      data:
        entity_id: !input 'light'
        brightness_step: 50
        transition: 1

  - conditions: '{{ command == ''down_press'' }}'
    sequence:
    - choose:
      - conditions: '{{ (cur_brightness - 25) >= min_brightness }}'
        sequence:
        - service: light.turn_on
          data:
            entity_id: !input 'light'
            transition: 1
            brightness_step: -25
      default:
      - service: light.turn_on
        data:
          entity_id: !input 'light'
          transition: 1
          brightness: !input 'min_brightness'

  - conditions: '{{ command == ''down_hold'' }}'
    sequence:
    - choose:
      - conditions: '{{ (cur_brightness - 50) >= min_brightness }}'
        sequence:
        - service: light.turn_on
          data:
            entity_id: !input 'light'
            transition: 1
            brightness_step: -50
      default:
      - service: light.turn_on
        data:
          entity_id: !input 'light'
          transition: 1
          brightness: !input 'min_brightness'

Hi,
Great blueprint, thanks.
It fails however when you try to target more than 1 light entity.
I think on line 89 where you get the current brightness of the light?

This is true, for the sake of lights controlled by a remote I generally create a light group and reference the light group entity with the remote blueprint. In this way HA holds the current brightness value even if one of the lights is unreachable.

Updated for V2 ZHA commands per @ https://gist.github.com/stefanroelofs/775e2e0a3cdb3d72a9451fb247492d59