#include 
    #define LED_PIN 3
    #define NUM_LEDS 30
    #define BRIGHTNESS 255
    #define LED_TYPE WS2811
    #define COLOR_ORDER RGB
    CRGB leds[NUM_LEDS];
    int pirPin = 2;
    int pirState = LOW;
    int val = 0;
    void setup() {
      pinMode(pirPin, INPUT);
      Serial.begin(9600);
      FastLED.addLeds(leds, NUM_LEDS);
      FastLED.setBrightness(BRIGHTNESS);
    }
    void loop() {
      val = digitalRead(pirPin);
      if (val == HIGH) {
        if (pirState == LOW) {
          Serial.println("Bewegung erkannt!");
          for(int i = 0; i < NUM_LEDS; i++){
        if(i % 3 == 2){
          leds[i] = CRGB(0,0,255);
        }else{
          leds[i] = CRGB(255,0,0);
        }
        FastLED.show();
        delay(700);
      }
          pirState = HIGH;
        }
      } else {
       if (pirState == HIGH) {
          Serial.println("Keine Bewegung.");
          delay(2500);
          fill_solid(leds, NUM_LEDS, CRGB::Black);
          FastLED.show();
          pirState = LOW;
        }
      }
    }