日光采集调光：电灯跟着窗外来光走

自动化 YAML light-daylight-harvest-dimming.yaml 复制

# HearthNodes recipe 07 - daylight harvesting
alias: "Light - daylight harvesting on the work plane"
id: hn_light_daylight_harvest
description: "Hold 500 lx on the work plane, clamp the ceiling circuit to 12-100 percent"
mode: single
max_exceeded: silent

trigger:
  - platform: numeric_state
    entity_id: sensor.office_workplane_lux
    below: "{{ state_attr('sensor.office_workplane_lux','last_setpoint') | float(500) - 60 }}"
  - platform: numeric_state
    entity_id: sensor.office_workplane_lux
    above: "{{ state_attr('sensor.office_workplane_lux','last_setpoint') | float(500) + 60 }}"

variables:
  target_lx: 500
  daylight_share: >-
    {{ (states('sensor.office_daylight_only_lux') | float(0) / target_lx * 100) | round(0) }}
  harvested_pct: >-
    {{ [[(100 - daylight_share | float(0)) | round(0), 12] | max, 100] | min }}

condition:
  - condition: state
    entity_id: binary_sensor.office_occupied
    state: "on"
  - condition: state
    entity_id: input_boolean.harvest_hold
    state: "off"
  - condition: template
    value_template: >-
      {{ (now() - states.sensor.office_workplane_lux.last_updated).total_seconds() < 600 }}

action:
  - service: light.turn_on
    target:
      entity_id: light.office_ceiling
    data:
      brightness_pct: "{{ harvested_pct }}"
      transition: 8
  - service: input_number.set_value
    target:
      entity_id: input_number.ceiling_last_level
    data:
      value: "{{ harvested_pct }}"

# Photosensor failure -> fixed 70 percent plus a maintenance flag. Daylight is
# never inferred from a weather API. Manual dimmer presses always suspend the
# loop for 15 minutes through input_boolean.harvest_hold.