#include <FastLED.h>

#define NUM_LEDS 16
#define DATA_PIN 6

CRGB leds[NUM_LEDS];


void setup() {
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
}

void loop() {
  // Turn the first led red for 1 second
  leds[0] = CRGB::Red;
  FastLED.show();
  delay(1000);

  // Set the first led back to black for 1 second
  leds[0] = CRGB::Black;
  FastLED.show();
  delay(1000);

}