void setup() {
  // put your setup code here, to run once:
  DDRD=255;
}

void loop() {
  int licht[8]={128,64,32,16,8,4,2,1};
  while(1)
  {
    for(int t=0;t<8;t++)
    {
      PORTD=licht[t];
      delay(500);
    }
  }
}