#include <Adafruit_NeoPixel.h>

int dotPin = 2;
int iAnzLED = 30;
Adafruit_NeoPixel stripe = Adafruit_NeoPixel( iAnzLED, dotPin, NEO_GRB + NEO_KHZ800);

void setup() {
  // put your setup code here, to run once:
  stripe.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  stripe.clear();
  for(int i = 0; i < iAnzLED; i++){
    stripe.setPixelColor(i, stripe.Color(255, 0, 0));
    stripe.show();
    delay(100);
  }  
}