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WS2812B/NeoPixel LED Strip

Kategorie:: esphome
Unterkategorie:: snippets
Pfad:: templates/esphome/snippets/actuators/led-strip-ws2812b

Tags:

#actuators

Beschreibung & Dokumentation

WS2812B/NeoPixel LED Strip Zweck Adressierbare RGB-LED-Streifen für Ambiente-Beleuchtung, Effekte, Benachrichtigungen oder dekorative Anwendungen. Anschluss Stromversorgung ⚠️ Wichtig: LED-Strips brauchen viel Strom! Pro LED: ~60mA bei voller Helligkeit (Weiß) 30 LEDs: bis zu 1.8A bei 5V Ab 10+ LEDs...

Code-Vorschau

Haupt-Konfiguration

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configuration.yaml

# WS2812B/NeoPixel LED Strip
# Adressierbare RGB LED-Streifen Steuerung
light:
  - platform: neopixelbus
    type: GRB  # Farbreihenfolge - anpassen falls Farben falsch (RGB, GRB, GRBW)
    variant: WS2812  # WS2812, WS2812X, WS2813, SK6812, etc.
    pin: GPIO5
    num_leds: 30  # Anzahl LEDs in deinem Strip
    name: "${friendly_name} LED Strip"
    id: led_strip
    default_transition_length: 1s
    gamma_correct: 2.8  # Bessere Farbdarstellung
    color_correct: [30%, 30%, 30%]  # Helligkeit reduzieren, pro Kanal anpassen
    restore_mode: RESTORE_DEFAULT_OFF
    effects:
      # Basis-Effekte
      - random:
          name: "Random"
          transition_length: 5s
          update_interval: 7s
      - strobe:
          name: "Strobe"
          colors:
            - state: true
              brightness: 100%
              red: 100%
              green: 100%
              blue: 100%
              duration: 500ms
            - state: false
              duration: 250ms
      - flicker:
          name: "Flicker"
          alpha: 95%
          intensity: 1.5%
      
      # Regenbogen-Effekte
      - rainbow:
          name: "Rainbow"
          speed: 10
          width: 50
      - pulse:
          name: "Pulse"
          transition_length: 1s
          update_interval: 1s
          min_brightness: 0%
          max_brightness: 100%
      
      # Erweiterte Effekte
      - lambda:
          name: "Fire"
          update_interval: 50ms
          lambda: |-
            static int pos = 0;
            for (int i = 0; i < it.size(); i++) {
              int heat = random(50) + random(80);
              int r = heat;
              int g = heat / 3;
              int b = 0;
              it[i] = Color(r, g, b);
            }

# Stromverbrauch-Überwachung (optional - für Sicherheit)
sensor:
  - platform: template
    name: "${friendly_name} LED Power Usage"
    id: led_power_usage
    unit_of_measurement: "W"
    accuracy_decimals: 1
    device_class: power
    state_class: measurement
    update_interval: 30s
    lambda: |-
      // Grobe Schätzung: ~60mA pro LED bei vollem Weiß
      float current_per_led = 0.06;  // 60mA
      float voltage = 5.0;
      float num_leds = 30;
      
      auto call = id(led_strip).get_current_values();
      float brightness = call.get_brightness();
      
      return num_leds * current_per_led * voltage * brightness;

# Sicherheits-Button zum sofortigen Ausschalten
button:
  - platform: template
    name: "${friendly_name} LED Emergency Off"
    icon: "mdi:lightbulb-off"
    on_press:
      - light.turn_off:
          id: led_strip

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