Dim a light with an Aqara Cube

aqara_cube_light_dimmer.yaml

blueprint:
  name: Aqara Cube Light Dimmer
  description: Adjust light brightness using Aqara Cube rotation
  domain: automation
  input:
    cube_angle_sensor:
      name: Aqara Cube Angle Sensor
      description: The sensor that provides the rotation angle
      selector:
        entity:
          domain: sensor
    light_entity:
      name: Light to control
      description: The light entity that will be dimmed
      selector:
        entity:
          domain: light
    brightness_multiplier:
      name: Brightness Change Speed
      description: How fast the brightness changes with rotation (higher = faster changes)
      default: 2
      selector:
        number:
          min: 0.5
          max: 10
          step: 0.5
          mode: slider

trigger:
  - platform: state
    entity_id: !input cube_angle_sensor

condition:
  - condition: template
    value_template: "{{ trigger.to_state.state != 'unknown' and trigger.to_state.state|float|abs > 5 }}"

variables:
  light_entity: !input light_entity
  brightness_multiplier: !input brightness_multiplier

action:
  - service: light.turn_on
    target:
      entity_id: !input light_entity
    data:
      brightness: >-
        {% set current = state_attr(light_entity, 'brightness') | int(100) %}
        {% set angle = trigger.to_state.state | float %}
        {% if angle > 0 %}
          {% set new_brightness = current + (angle|abs * brightness_multiplier)|int %}
          {{ [new_brightness, 255]|min }}
        {% else %}
          {% set new_brightness = current - (angle|abs * brightness_multiplier)|int %}
          {{ [new_brightness, 1]|max }}
        {% endif %}

mode: restart