light_brightness_sensor_automation.yaml

blueprint:
  name: Luz controlada por sensor de Luminosidad
  description: Enciende una luz y ajusta el brillo de acuerdo a la luminosidad.
  source_url: https://github.com/fixtse/blueprints/blob/main/light_brightness_sensor_automation.yaml
  domain: automation
  input:
    illuminance_sensor:
      name: Sensor de Luminosidad
      selector:
        entity:
          domain: sensor
          device_class: illuminance
    target_light:
      name: Foco
      selector:
        entity:
          domain: light
    max_brightness:
      name: Brillo Máximo
      description: Limita el máximo nivel de brillo del foco
      default: 100
      selector:
        number:
          min: 0
          max: 100
          unit_of_measurement: "%"
    brightness_trigger_light_off:
      name: Límite de iluminación para encender la luz
      description: Cuando la luminosidad se encuentre bajo este nivel, la luz se encenderá
      default: 30
      selector:
        number:
          min: 0
          max: 1000
          unit_of_measurement: lx
    brightness_trigger_light_on:
      name: Límite de iluminación apagar la luz
      description: Cuando la luminosidad se encuentre sobre este nivel, la luz se apagará
      default: 80
      selector:
        number:
          min: 0
          max: 1000
          unit_of_measurement: lx
    transition_time:
      name: Tiempo de Transición
      description: Tiempo que tardará la luz en cambiar de brillo.
      default: 4
      selector:
        number:
          min: 0
          max: 10
          unit_of_measurement: seg
    control_light:
      name: Control
      description: Ayudante para activar y desactivar la automatización de forma sencilla.
      selector:
        entity:
          domain: input_boolean

mode: restart
max_exceeded: silent

trigger:
  - platform: state
    entity_id: !input illuminance_sensor
  - platform: state
    entity_id: !input control_light

condition:
  - condition: state
    entity_id: !input control_light
    state: "off"

variables:
  lux_sensor: !input illuminance_sensor
  lux: "{{ states(lux_sensor) |int }}"
  brg_tg_on: !input brightness_trigger_light_on
  max_brg: !input max_brightness
  brg_tg_off: !input brightness_trigger_light_off
  light: !input target_light
  brightness: >-
    {%- if is_state(light.entity_id, 'off') -%}
      {% if lux >= brg_tg_off %} 
        0 
      {% else%}
         {{ (150 - lux) / (150 / 100) | float  }}          
      {% endif %}
    {%- else -%}
      {% if lux >= brg_tg_on %} 
        0 
      {% else%}
         {{ (150 - lux) / (150 / 100) | float  }}          
      {% endif %}
    {%- endif -%}

action:
  - service: light.turn_on
    target: !input target_light
    data:
      brightness_pct: "{{ ((max_brg * brightness) / 100) | int }}"
      transition: !input transition_time