#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
  #include <avr/power.h>
#endif

int PIN = 12;
int NUMPIXELS = 8;
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  pinMode(13, OUTPUT);
  pinMode(11, OUTPUT);
  digitalWrite(11,LOW);
  digitalWrite(13,HIGH);
  pixels.begin(); // This initializes the NeoPixel library.
  Serial.begin(9600);
}
int aux1,aux2, aux3;
int colors[8][3]={{255,0,0},{0,255,0},{0,0,255},{0,255,0},{255,255,0},{0,255,255},{255,0,255},{255,0,0}};
void loop() {
       aux1 = colors[7][0];
       aux2= colors[7][1];
       aux3= colors[7][2];
    for( int k = 7; k >0; k --){
      for( int l = 0; l < 3; l++){
        colors[k][l] = colors[ k - 1][l];
      }
    }

      colors[0][0] = aux1;
      colors[0][1] = aux2;
      colors[0][2] = aux3;

    for(int i = 0; i < NUMPIXELS; i++){
       pixels.setPixelColor(i, pixels.Color(colors[i][0],colors[i][1],colors[i][2]));
       pixels.show();
      }

    delay(200);
  }