// Includes the library code
#include <LiquidCrystal.h>
#include <Adafruit_NeoPixel.h>
#include <avr/power.h>

#define PIN        6
#define NUMPIXELS  3

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
#define DELAYVAL 500

// Defines the LCD's parameters: (rs, enable, d4, d5, d6, d7)
LiquidCrystal lcd(9, 8, 5, 4, 3, 2);

int red;
int green;
int blue;

int pixelNum;

void setup() { 

  clock_prescale_set(clock_div_1);
  pixels.begin();

  // Set up the LCD's number of columns and rows
  lcd.begin(16, 2);

  pixelNum = 0;  
}

int getValueRescaleInt(int value, int maxValue) {
  return int(float(value) / 1023 * maxValue);
}

float getValueRescalefloat(int value, int maxValue) {
  return float(value) / 1023 * maxValue;
}

void loop() {
 
  pixelNum = (pixelNum + 1) % NUMPIXELS;

  red   = getValueRescaleInt(analogRead(A0), 255);
  green = getValueRescaleInt(analogRead(A1), 255);
  blue  = getValueRescaleInt(analogRead(A2), 255);
  
  lcd.setCursor(0,0);
  lcd.print(pixelNum);
  lcd.setCursor(0,1);
  lcd.print(String("RGB (" + String(red) + "," + String(green) + "," + String(blue) + ")"));

  pixels.setPixelColor(pixelNum, pixels.Color(red, green, blue));
  pixels.show();

  delay(500);
  lcd.clear();

}