#include <neoPixel.h>

neoPixel strip(30,10);

void setup() {

  strip.begin();
  strip.setAll(&black);
  for(int i=2;i<30;i=i+3) {
    strip.setPixelColor(i,&white);
  }
}


void loop() {
  //strip.roll(false);    // Uncomment the direction you want. This one..
  strip.roll(true);       // Or this one.
  strip.show();
  delay(80);              // Set time how long to wait between movements.
}