#include <Adafruit_NeoPixel.h>

// Define which pin the NeoPixel data line is connected to
#define PIN 6 
// Define how many NeoPixels are in your strip/ring/single LED
#define NUMPIXELS 1 

// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (6 in this case)
// Parameter 3 = Pixel type flags (NEO_GRB is common for NeoPixels)
Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

// Array of colors (Red, Green, Blue)
uint32_t colors[] = {
  pixels.Color(255, 0, 0),    // Red
  pixels.Color(0, 255, 0),    // Green
  pixels.Color(0, 0, 255)     // Blue
};

// Index to track the current color
int colorIndex = 0;
// Total number of colors in the array
const int numColors = sizeof(colors) / sizeof(colors[0]);

void setup() {
  // Initialize the NeoPixel object
  pixels.begin(); 
}

void loop() {
  // Set the color for the first pixel (index 0)
  pixels.setPixelColor(0, colors[colorIndex]); 
  
  // This command sends the data to the NeoPixel, making it light up!
  pixels.show(); 

  // Move to the next color in the array
  colorIndex = (colorIndex + 1) % numColors; 
  
  // Wait for 500 milliseconds (half a second)
  delay(500); 
}