#define CLK 2
#define DT 3
#define LED1 4
#define LED2 5
#define LED3 6
#define LED4 7
#define LED5 8
#define LED6 9
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd (0x27, 20, 4);
int statoIniziale = 0;
int contatoreIN = 1;




void setup() {
 
  pinMode(CLK, INPUT);
  pinMode(DT, INPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  pinMode(LED6, OUTPUT);
  Serial.begin(9600);
  statoIniziale = digitalRead(CLK);
  attachInterrupt(digitalPinToInterrupt(CLK), valoreEncoder, FALLING);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(6, 0);
  lcd.print("INGRESSI");
  lcd.setCursor(2, 1);
  lcd.print("1");
  lcd.setCursor(5, 1);
  lcd.print("2");
  lcd.setCursor(8, 1);
  lcd.print("3");
  lcd.setCursor(11, 1);
  lcd.print("4");
  lcd.setCursor(14, 1);
  lcd.print("5");
  lcd.setCursor(17, 1);
  lcd.print("6");
  int parentesiQuadra[12][2]= {{1,1},{3,1}}

}

void loop() {
switch (contatoreIN) {
  case 1:
    digitalWrite(LED2, LOW);
    digitalWrite(LED1, HIGH);
    break;
  case 2:
    digitalWrite(LED3, LOW);
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, HIGH);
    break;
  case 3:
    digitalWrite(LED4, LOW);
    digitalWrite(LED2, LOW);
    digitalWrite(LED3, HIGH);
    break;
  case 4:
    digitalWrite(LED3, LOW);
    digitalWrite(LED5, LOW);
    digitalWrite(LED4, HIGH);
    break;
  case 5:
    digitalWrite(LED6, LOW);
    digitalWrite(LED4, LOW);
    digitalWrite(LED5, HIGH);
    break;
  case 6:
    digitalWrite(LED5, LOW);
    digitalWrite(LED6, HIGH);
  

  //default:
    // statements
   // break;
}

/*
if (contatoreIN == 1) {
  digitalWrite(LED1, HIGH);
  digitalWrite(LED2, LOW);
  digitalWrite(LED3, LOW); 
  digitalWrite(LED4, LOW);
  Serial.println("Ingresso 1");
}
if (contatoreIN == 2) {
  digitalWrite(LED2, HIGH);
  digitalWrite(LED1, LOW);
  digitalWrite(LED3, LOW); 
  digitalWrite(LED4, LOW);
  Serial.println("Ingresso 2");
}
if (contatoreIN == 3) {
  digitalWrite(LED3, HIGH);
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW); 
  digitalWrite(LED4, LOW);
  Serial.println("Ingresso 3");
}
if (contatoreIN == 4) {
  digitalWrite(LED4, HIGH);
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW); 
  digitalWrite(LED3, LOW);
  Serial.println("Ingresso 4");
}
*/
}

void valoreEncoder() {
int valoreDT = digitalRead(DT);
if (valoreDT == HIGH) {
  contatoreIN++;//  Senso Orario 
  if (contatoreIN >= 6) {
    contatoreIN = 6;
  }

}

if (valoreDT == LOW) {
  contatoreIN--; // Senso Antiorario
  if (contatoreIN <= 1) {
    contatoreIN = 1;
  }
  
}

Serial.println(contatoreIN);
}