Home Assistant RGBCCT Sunset script

bedroom_sunset_led1.yaml

input_number:
  bedroom_sunset_led1:
    name: Bedroom Sunset LED1
    min: 0
    max: 255
    step: 1

script:
  bedroom_sunset_led1_smooth:
    alias: Bedroom Sunset LED1 Smooth
    mode: single
    fields:
      level:
        description: Sunset level 0–255
        example: 128
    sequence:
      - variables:
          lv: "{{ level | float }}"
          lv_norm: "{{ (lv / 255) | float }}"
          
          # === ADJUSTABLE PARAMETERS ===
          # Red curve parameters
          red_orange_transition: 0.15   # When the orange transition starts (0.0-1.0)
          red_fade_start: 0.35          # When red starts to fade strongly
          red_max_intensity: 180        # Maximum red intensity
          
          # Green curve parameters  
          green_peak_position: 0.18     # Position of the green peak (lower = more orange)
          green_curve_width: 0.06       # Width of the green curve (lower = narrower)
          green_max_intensity: 40       # Maximum green intensity
          
          # Warm white parameters
          warm_full_at: 0.35            # When warm white is at 100%
          warm_max_intensity: 255       # Maximum warm white intensity
          
          # Cold white parameters
          cold_start_at: 204            # At which value (0-255) cold white starts
          cold_max_intensity: 255       # Maximum cold white intensity
          
          # === CALCULATIONS ===
          
          # --- RED: Earlier orange transition ---
          red: >-
            {% set red_orange = red_orange_transition %}
            {% set red_fade = red_fade_start %}
            {% set max_red = red_max_intensity %}
            
            {% if lv_norm < 0.75 %}
              {% if lv_norm < red_orange %}
                {# Initially full red #}
                {{ max_red }}
              {% elif lv_norm < red_fade %}
                {# Smooth transition to orange (less red) #}
                {% set fade_factor = 1 - ((lv_norm - red_orange) / (red_fade - red_orange)) * 0.3 %}
                {{ (max_red * fade_factor) | round(0) }}
              {% else %}
                {# Strong drop after the orange area #}
                {{ (max_red * (1 - lv_norm) * 0.8) | round(0) }}
              {% endif %}
            {% else %}
              0
            {% endif %}
            
          # --- GREEN: Small amount for orange effect ---
          green: >-
            {% set peak = green_peak_position %}
            {% set width = green_curve_width %}
            {% set max_green = green_max_intensity %}
            {% set dist = (lv_norm - peak) | abs %}
            
            {% if dist < width * 2 %}
              {% set intensity = (1 - (dist / width)) %}
              {% if intensity > 0 %}
                {{ (max_green * intensity * intensity) | round(0) }}
              {% else %}
                0
              {% endif %}
            {% else %}
              0
            {% endif %}
            
          # --- WARM WHITE: Dominates after orange phase ---
          warm: >-
            {% set warm_threshold = warm_full_at %}
            {% set max_warm = warm_max_intensity %}
            
            {% if lv_norm < warm_threshold %}
              {% set ease = (lv_norm / warm_threshold) * (lv_norm / warm_threshold) %}
              {{ (max_warm * ease) | round(0) }}
            {% else %}
              {{ max_warm }}
            {% endif %}
            
          # --- COLD WHITE: Only at the end for bright white ---
          cold: >-
            {% set cold_start = cold_start_at %}
            {% set max_cold = cold_max_intensity %}
            
            {% if lv > cold_start %}
              {% set x = (lv - cold_start) / (255 - cold_start) %}
              {% set rise = 1 - (1-x)*(1-x)*(1-x) %}
              {{ (max_cold * rise) | round(0) }}
            {% else %}
              0
            {% endif %}
            
          brightness: "{{ lv | round(0) }}"

      - service: light.turn_on
        target:
          entity_id: light.elternschlafzimmer_bettlicht_links
        data:
          brightness: "{{ brightness | int }}"
          rgbww_color:
            - "{{ red | int }}"
            - "{{ green | int }}"
            - 0
            - "{{ cold | int }}"
            - "{{ warm | int }}"
          transition: 1

automation:
  - id: bedroom_sunset_led1_apply
    alias: Bedroom Sunset LED1 Apply
    mode: single
    trigger:
      - platform: state
        entity_id: input_number.bedroom_sunset_led1
    action:
      - service: script.bedroom_sunset_led1_smooth
        data:
          level: "{{ states('input_number.bedroom_sunset_led1') | float }}"

  - id: bedroom_knob1_zigbee2mqtt_command
    alias: Bedroom Knob 1 controls Sunset LED1 (command mode, normalized)
    mode: restart
    trigger:
      - platform: mqtt
        topic: "zigbee2mqtt/01. Drehknopf"
    condition:
      - condition: template
        value_template: >
          {{ trigger.payload_json.action in ['brightness_step_up', 'brightness_step_down'] }}
    variables:
      current: "{{ states('input_number.bedroom_sunset_led1') | float(0) }}"
      step: 2
    action:
      - choose:
          - conditions: "{{ trigger.payload_json.action == 'brightness_step_up' }}"
            sequence:
              - service: input_number.set_value
                data:
                  entity_id: input_number.bedroom_sunset_led1
                  value: "{{ [current + step, 255] | min }}"
          - conditions: "{{ trigger.payload_json.action == 'brightness_step_down' }}"
            sequence:
              - service: input_number.set_value
                data:
                  entity_id: input_number.bedroom_sunset_led1
                  value: "{{ [current - step, 0] | max }}"