#include <FastLED.h>
#define LED_PIN  7  //Tells arduino send code to pin 7
#define NUM_LEDS  4  //4 leds are attached

CRGB leds[NUM_LEDS];

void setup () {
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  FastLED.show();
};

void loop () {
leds[0] = CRGB(0, 255, 64);
FastLED.show();

delay(200);
leds[1] = CRGB::Red;
FastLED.show();
delay(200);
  leds[2] = CRGB(0, 255, 64);
  FastLED.show();
  delay(200);
  leds[3] = CRGB::Red;
  FastLED.show();
delay(200);
leds[0] = CRGB(0, 255, 64);
FastLED.show();

delay(200);
leds[1] = CRGB(0,255,64);
FastLED.show();
delay(200);
  leds[2] = CRGB::Red;
  FastLED.show();
  delay(200);
  leds[3] = CRGB(0, 255, 64);
  FastLED.show();
delay(200);
leds[0] = CRGB::Red;
FastLED.show();

delay(200);
leds[1] = CRGB::Red;
FastLED.show();
delay(200);
  leds[2] = CRGB(0, 255, 64);
  FastLED.show();
  delay(200);
  leds[3] = CRGB::Red;
  FastLED.show();
delay(200);
leds[0] = CRGB(0, 255, 64);
FastLED.show();

}