ZHA - IKEA four button remote for lights

Blatent ripp-off of @frenck’s version of the five button variant but adjusted for four buttons. Current version only has the on and off buttons set. Dimming or changing colors is not yet implemented.

Blueprint Code

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blueprint:
  name: ZHA - IKEA four button remote for lights
  description: |
    Control lights with an IKEA four button remote (the square ones).

    Based on the work of [frenck](https://community.home-assistant.io/u/frenck) with the five button version.

    Pressing the up button will turn on the lights at the last set brightness
    (unless the force brightness is toggled on in the blueprint).

    Pressing the down button will turn the lights off again.

    Dim up/down buttons by holding them is not implemented yet.

    The "left" and "right" buttons have not been implemented yet.

  domain: automation
  input:
    remote:
      name: Remote
      description: IKEA remote to use
      selector:
        device:
          integration: zha
          manufacturer: IKEA of Sweden
          model: Remote Control N2
    light:
      name: Light(s)
      description: The light(s) to control
      selector:
        target:
          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: 50
      selector:
        number:
          min: 0
          max: 100
          mode: slider
          step: 1
          unit_of_measurement: "%"

mode: restart
max_exceeded: silent

variables:
  force_brightness: !input force_brightness

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 }}"
      args: "{{ trigger.event.data.args }}"
  - choose:
      - conditions:
          - "{{ command == 'on' }}"
          - "{{ cluster_id == 6 }}"
          - "{{ endpoint_id == 1 }}"
        sequence:
          - choose:
              - conditions: "{{ force_brightness }}"
                sequence:
                  - service: light.turn_on
                    target: !input light
                    data:
                      brightness_pct: !input brightness
            default:
              - service: light.turn_on
                target: !input light

      - conditions:
          - "{{ command == 'off' }}"
          - "{{ cluster_id == 6 }}"
          - "{{ endpoint_id == 1 }}"
        sequence:
          - service: light.turn_off
            target: !input light