#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
  #include <avr/power.h>
#endif

//Out Pin for Light Ring
#define PIN            6

//In Pin for PWM signal
byte PWM_PIN = 3;

//PWM SETUP
int pwm_value_ms;
int pwm_value;

//LED Ring SETUP
#define NUMPIXELS      12
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
int delayval = 500; // delay for half a second

void setup() {
  pinMode(PWM_PIN, INPUT); //Sets Pin to Input
  Serial.begin(115200); //Initalizes Serial

  pixels.begin(); // This initializes the NeoPixel library.
}

void loop() {
  pwm_value_ms = pulseIn(PWM_PIN, HIGH);
  Serial.println(pwm_value_ms);


   // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
  for(int i=0;i<NUMPIXELS;i++){

    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    //Ifs for PWM Numbers
    if (pwm_value == 0){
      //Red
      pixels.setPixelColor(i, pixels.Color(255,0,0));
    }
    if (pwm_value == 1){
      //Green
      pixels.setPixelColor(i, pixels.Color(0,255,0));
    }
    if (pwm_value == 2){
      //Blue
      pixels.setPixelColor(i, pixels.Color(0,0,255));
    }
    if (pwm_value == 3){
      //Orange
      pixels.setPixelColor(i, pixels.Color(255,154,0));
    }
    if (pwm_value == 4){
      //Yellow
      pixels.setPixelColor(i, pixels.Color(255,255,0));
    }
    if (pwm_value == 5){
      //Indigo
      pixels.setPixelColor(i, pixels.Color(179,0,255));
    }
    if (pwm_value == 6){
      //Violet
      pixels.setPixelColor(i, pixels.Color(95,0,135));
    }
    if (pwm_value == 7){
      //Team Color
      pixels.setPixelColor(i, pixels.Color(27,82,165));
    }
    if (pwm_value == 8){
      //Cyan
      pixels.setPixelColor(i, pixels.Color(0,230,255));
    }
    if (pwm_value == 9){
      //Brown
      pixels.setPixelColor(i, pixels.Color(51,0,0));
    }
    if (pwm_value == 10){
      //Black
      pixels.setPixelColor(i, pixels.Color(0,0,0));
    }
    if (pwm_value == 11){
      //Grey
      pixels.setPixelColor(i, pixels.Color(192,192,192));
    }
    if (pwm_value == 12){
      //Pink
      pixels.setPixelColor(i, pixels.Color(255,204,229));
    }
    if (pwm_value == 13){
      //White
      pixels.setPixelColor(i, pixels.Color(255,255,255));
    }
    if (pwm_value == 14){
      //Yellow Green
      pixels.setPixelColor(i, pixels.Color(153,255,51));
    }
    if (pwm_value == 15){
      //Darker Pink
      pixels.setPixelColor(i, pixels.Color(255,51,153));
    }

    pixels.show(); // This sends the updated pixel color to the hardware.

    delay(delayval); // Delay for a period of time (in milliseconds).
  }
}