// ##############################################################
//              Neopixel WS2812 LED Interface                   #
// ##############################################################
// 
//  Neopixel WS2812 LED interface with Arduino Uno (Hardware & Simulation)
// 
//  Check out the link for Code explanation and Hardware details
//  Link: 
//   http://tech.arunkumarn.in/blogs/arduino-uno/interfacing-neopixel-rgb-led-with-arduino-uno/
//
// 

#include <Adafruit_NeoPixel.h>

#define LED_PIN 6
#define NUM_LEDS 16

Adafruit_NeoPixel pixels(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

// Define the colors (R, G, B)
uint8_t colors[][3] = {
  {255, 0, 0},    // Red
  {0, 255, 0},    // Green
  {0, 0, 255},    // Blue
  {255, 169, 0},  // Orange
  {255, 255, 255} // White
};

const int numColors = sizeof(colors) / sizeof(colors[0]);

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

void loop() {

  // Display Yellow first
  for (int i = 0; i < NUM_LEDS; i++) {
    pixels.setPixelColor(i, pixels.Color(255, 255, 0));
  }
  pixels.show();
  delay(2000);

  // Cycle through colors
  for (int c = 0; c < numColors; c++) {
    for (int i = 0; i < NUM_LEDS; i++) {
      pixels.setPixelColor(i, pixels.Color(colors[c][0], colors[c][1], colors[c][2]));
      delay(50);
      pixels.show();
    }
    pixels.show();
    delay(1000);
  }
}