// Bibliotheken
#include <Adafruit_NeoPixel.h>
#include <SPI.h>

// Define PIN für Band
# define PIN_BAND_RING    3

Adafruit_NeoPixel LED_Ring = Adafruit_NeoPixel(48, PIN_BAND_RING, NEO_GRB + NEO_KHZ800);
unsigned long time_old; 


void setup() {
  Serial.begin(9600);// put your setup code here, to run once:
  LED_Ring.begin();
  Serial.println("Initialisierung ausgeführt!");
}

void loop() {
  // put your main code here, to run repeatedly:
  if ((millis()- time_old) >= 1000)
  {
    int i, red, green, blue;
    for (i=0; i<=47;i++) 
    { 
      red = random(0,255);
      green = random(0,255);
      blue = random(0,255);
      LED_Ring.setPixelColor(i,LED_Ring.Color(red,green,blue));
    }
    LED_Ring.show(); 
    time_old = millis();
  }
 
}