#include <LiquidCrystal.h>
#define PIN1 8
#define PIN2 7
#define PIN3 6
#define PIN4 5
#define PIN5 4
#define PIN6 3
LiquidCrystal lcd(PIN1,PIN2,PIN3,PIN4,PIN5,PIN6);
int LDR = A0;
int value, normalizedValue;

void setup() {
  // put your setup code here, to run once:
  pinMode(PIN1, OUTPUT);
  pinMode(PIN2, OUTPUT);
  pinMode(PIN3, OUTPUT);
  pinMode(PIN4, OUTPUT);
  pinMode(PIN5, OUTPUT);
  pinMode(PIN6, OUTPUT);
  pinMode(LDR, INPUT);
  lcd.begin(16,2);
  lcd.print("Nivel de Luz");
}

void loop() {
  // put your main code here, to run repeatedly:
  value=analogRead(LDR);
  normalizedValue = map(value,0,500,0,100);
  lcd.setCursor(0, 1);
  lcd.print(normalizedValue);
  lcd.print("%");
  //delay(100);
}