#include <Adafruit_NeoPixel.h>

#define LED_PIN 5

Adafruit_NeoPixel pixel(1, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  pixel.begin();
}

void loop() {
  pixel.setPixelColor(0, pixel.Color(255, 0, 0)); // Red
  pixel.show();
  delay(500);

  pixel.setPixelColor(0, pixel.Color(0, 255, 0)); // Green
  pixel.show();
  delay(500);

  pixel.setPixelColor(0, pixel.Color(255, 255, 0)); // Yellow
  pixel.show();
  delay(500);
}