#include <Wire.h>
#include <RTClib.h>
#include <Button.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
//#include <IRremote.hpp>

#define Type DHT11

int ValBot;

int Qpin[4] = { 6, 7, 8, 9 };

bool Q[4];

int dht = 52;
int buzzpin = 53;
int relepin = 11;
bool buzz = false;
bool titilar = true;
bool rele = true;
bool rele2 = false;
bool alarma = false;
bool al = true;
bool diaal2[7] = { false, true, true, true, true, true, false };
int dia2 = 1;
int freq = 200;

float humedad;
float temperatura;
int temp1;

int linSec = 10;
int linMin = 7;
int linHor = 5;
int dia = 1;

int hora = 6;
int min = 30;
int menu = 0;
int menu2 = 0;

bool lcd1 = true;

int sensimp = 3;
bool ender = true;
bool arty = false;
int buzzpinImp = 7;
int volbuzzer = 0;
int volbuzzerlcd = 100;

bool pausa = false;
bool temp = false;
int horatemp = 0;
int mintemp = 1;
int segtemp = 0;
int sel = 0;

int h = 25;
bool ruido = false;
int buzzerRuido;

int IRpin = A5;

int pinarriba = 43;
int pinabajo = 47;
int pinderecha = 41;
int pinizquierda = 49;
int pinenter = 45;
int botones[]{ 0, 37, 33, 44, 48, 39, 35, 0, 46 };

DHT HT(dht, Type);
Button izq(pinizquierda);
Button der(pinderecha);
Button arr(pinarriba);
Button abj(pinabajo);
Button enter(pinenter);
Button suich(10);
Button b1(botones[1]);  //luz
Button b2(botones[2]);
Button b3(botones[3]);
Button b4(botones[4]); //temp
Button b5(botones[5]);
Button b6(botones[6]);
Button b7(botones[7]);
Button b8(botones[8]);
Button ender1(52);  //ender
Button arty1(35);   //artillery

LiquidCrystal_I2C lcd(0x27, 16, 2);

RTC_DS3231 rtc;

void setup() {

  lcd.clear();
  lcd.backlight();
  lcd.init();

  izq.begin();
  der.begin();
  arr.begin();
  abj.begin();
  enter.begin();
  suich.begin();
  b1.begin();
  ender1.begin();
  arty1.begin();
  b4.begin();
  // b5.begin();
  // b6.begin();
  // b7.begin();
  // b8.begin();

  //IrReceiver.begin(IRpin);

  rtc.begin();
  //rtc.adjust(DateTime(__DATE__, __TIME__));

  HT.begin();

  Serial.begin(9600);

  pinMode(pinizquierda, OUTPUT);
  pinMode(pinarriba, OUTPUT);
  pinMode(pinabajo, OUTPUT);
  pinMode(pinenter, OUTPUT);
  pinMode(pinderecha, OUTPUT);
  pinMode(botones[1,2,3,4,5,6,7], OUTPUT);
  pinMode(52, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(buzzpin, OUTPUT);
  pinMode(relepin, OUTPUT);
  pinMode(buzzpinImp, OUTPUT);
}

void decode() {

  /*
  Q[0] = digitalRead(Qpin[0]);
  Q[1] = digitalRead(Qpin[1]);
  Q[2] = digitalRead(Qpin[2]);
  Q[3] = digitalRead(Qpin[3]);
 
  Serial.println("Ingresa el valor binario");

  while (Serial.available() == 0) {
  }
  Q[3] = Serial.parseInt();
  Serial.print(Q[3]);

  while (Serial.available() == 0) {
  }
  Q[2] = Serial.parseInt();
  Serial.print(Q[2]);

  while (Serial.available() == 0) {
  }
  Q[1] = Serial.parseInt();
  Serial.print(Q[1]);

  while (Serial.available() == 0) {
  };
  Q[0] = Serial.parseInt();
  Serial.println(Q[0]);
  
  ValBot = (Q[0] + Q[1] * 2 + Q[2] * 4 + Q[3] * 8);
 
 ValBot = Serial.parseInt();

  Serial.print("Valbot = ");
  Serial.println(ValBot);*/
}
void buzzertitilar() {
  if (ruido == true) {
    digitalWrite(buzzpin, 1);
    delay(h);
    digitalWrite(buzzpin, 0);
  }
}
void arriba() {
  decode();
  if ((arr.pressed() && lcd1 == true) || ValBot == 1) {
    Serial.println("arriba");
    ValBot = 0;
    menu2--;
    lcd.clear();
    buzzertitilar();
  }
}
void abajo() {
  decode();
  if (abj.pressed() && lcd1 == true || ValBot == 2) {
    ValBot = 0;
    menu2++;
    lcd.clear();
    buzzertitilar();
  }
}
void izquierda() {
  decode();
  if (izq.pressed() && lcd1 == true || ValBot == 4) {
    ValBot = 0;
    menu--;
    lcd.clear();
    buzzertitilar();
  }
}
void derecha() {
  decode();
  if (der.pressed() && lcd1 == true || ValBot == 3) {
    ValBot = 0;
    menu++;
    lcd.clear();
    buzzertitilar();
  }
}
void printTiempo() {
  if (mintemp < 10) {
    linMin = 4;
    lcd.setCursor(7, 0);
    lcd.print("0");
  } else {
    linMin = 3;
  }
  if (horatemp < 10) {
    linHor = 1;
    lcd.setCursor(4, 0);
    lcd.print("0");
  } else {
    linHor = 0;
  }
  if (segtemp < 10) {
    linSec = 7;
    lcd.setCursor(10, 0);
    lcd.print("0");
  } else {
    linSec = 6;
  }
  lcd.setCursor(linHor + 4, 0);
  lcd.print(horatemp);
  lcd.setCursor(6, 0);
  lcd.print(":");
  lcd.setCursor(linMin + 4, 0);
  lcd.print(mintemp);
  lcd.setCursor(9, 0);
  lcd.print(":");
  lcd.setCursor(linSec + 4, 0);
  lcd.print(segtemp);
}
void temporizador() {
  while (temp == true) {

    printTiempo();

    if (segtemp == 0) {
      delay(1000);
      //Minutos
      if (mintemp != 0) {
        mintemp--;
        segtemp = 59;
      }
      //Horas
      if (mintemp == 0 && horatemp != 0 && segtemp == 0) {
        horatemp--;
        mintemp = 59;
        segtemp = 59;
      }
    }
   
    printTiempo();

    delay(1000);

    if (pausa == false) {
      segtemp--;
      lcd.clear();
    }


    if (enter.pressed()) {
      pausa = !pausa;
    }
    if (b4.pressed()) {
      temp = false;
    }

    if (horatemp == 0 && mintemp == 0 && segtemp == 0) {
      lcd.setCursor(2, 0);
      lcd.print("TIEMPOOOOOOO");
      lcd.setCursor(4, 1);
      lcd.print("pipipipi");
      for (int b = 0; b < 5000; b++) {
        temp = false;
        if (enter.pressed()) {
          horatemp = 0;
          mintemp = 0;
          segtemp = 0;
          lcd.clear();
          break;
        }
        digitalWrite(buzzpin, 1);
        delay(100);
        digitalWrite(buzzpin, 0);
        delay(100);
      }
    }
  }
}

void loop() {
  while (menu == 0 && menu2 == 0) {
    //rtc.adjust(DateTime(__DATE__, __TIME__));
    // while (IrReceiver.decode() == 0) {}
    // Serial.println(IrReceiver.decodedIRData.command);
    // IrReceiver.resume();
    

    DateTime fecha = rtc.now();

    temp1 = round(HT.readTemperature());

    Serial.println(arr.read());

    if (fecha.minute() < 10) {
      linMin = 4;
      lcd.setCursor(3, 1);
      lcd.print("0");
    } else {
      linMin = 3;
    }
    if (fecha.hour() < 10) {
      linHor = 1;
      lcd.setCursor(0, 1);
      lcd.print("0");
    } else {
      linHor = 0;
    }
    if (fecha.second() < 10) {
      linSec = 7;
      lcd.setCursor(6, 1);
      lcd.print("0");
    } else {
      linSec = 6;
    }
    switch (dia) {
      case 1:
        lcd.setCursor(0, 0);
        lcd.print("Domingo");
        break;
      case 2:
        lcd.setCursor(0, 0);
        lcd.print("Lunes");
        break;
      case 3:
        lcd.setCursor(0, 0);
        lcd.print("Martes");
        break;
      case 4:
        lcd.setCursor(0, 0);
        lcd.print("Miercoles");
        break;
      case 5:
        lcd.setCursor(0, 0);
        lcd.print("Jueves");
        break;
      case 6:
        lcd.setCursor(0, 0);
        lcd.print("Viernes");
        break;
      case 7:
        lcd.setCursor(0, 0);
        lcd.print("Sabado");
        break;
    }
    lcd.setCursor(13, 0);
    lcd.print(temp1);
    lcd.setCursor(15, 0);
    lcd.print("c");
    lcd.setCursor(13, 1);
    lcd.print(HT.readHumidity());
    lcd.setCursor(15, 1);
    lcd.print("%");
    lcd.setCursor(linHor, 1);
    lcd.print(fecha.hour());
    lcd.setCursor(2, 1);
    lcd.print(":");
    lcd.setCursor(linMin, 1);
    lcd.print(fecha.minute());
    lcd.setCursor(5, 1);
    lcd.print(":");
    lcd.setCursor(linSec, 1);
    lcd.print(fecha.second());

    if ((ender1.read() == 0 && ender == true) || (arty1.read() == 0 && arty == true)) {
      analogWrite(buzzpinImp, volbuzzer);
    } else {
      analogWrite(buzzpinImp, 0);
    }
    if (suich.pressed()) {
      lcd.noDisplay();
      lcd.noBacklight();
      lcd1 = false;
    }
    if (suich.released()) {
      lcd.display();
      lcd.backlight();
      lcd1 = true;
    }

    if (b1.pressed()) {
      digitalWrite(relepin, rele2);
      rele2 = !rele2;
    }
    if (b4.pressed()) {
      lcd.clear();
      temp = true;
    }
    if (temp == true) {
      lcd.clear();
    }
    temporizador();
    //Alarma
    if (enter.pressed()) {
      alarma = true;
    }
    if (fecha.hour() == hora && fecha.minute() == min && fecha.second() == 0 && al == true && ((diaal2[0] == true && dia == 1) || (diaal2[1] == true && dia == 2) || (diaal2[2] == true && dia == 3) || (diaal2[3] == true && dia == 4) || (diaal2[4] == true && dia == 5) || (diaal2[5] == true && dia == 6) || (diaal2[6] == true && dia == 7))) {
      alarma = true;
    }

    if (alarma == true) {
      if (rele == true) {
        if (buzz == false) {
          digitalWrite(relepin, rele2);
          rele2 = !rele2;
          delay(1000);
          alarma = false;
        }
        if (buzz == true) {
          digitalWrite(relepin, rele2);
          rele2 = !rele2;
        }
        if (buzz == true) {
          if (titilar == true) {
            for (int a = 0; a < 100; a++) {
              if (enter.pressed()) {
                alarma = false;
                break;
              }
              digitalWrite(buzzpin, 1);
              delay(freq);
              digitalWrite(buzzpin, 0);
              delay(freq);
            }
          }
          while (titilar == false) {
            digitalWrite(buzzpin, 1);
            if (enter.pressed()) {
              digitalWrite(buzzpin, 0);
              alarma = false;
              break;
            }
          }
        }
      }
    }
    if (fecha.second() == 59 && fecha.hour() != 23) {
      delay(1000);
      lcd.clear();
    }
    if (fecha.hour() == 23 && fecha.minute() == 59 && fecha.second() == 59) {
      delay(1000);
      dia++;
      if(dia == 8){
        dia = 1;
      }
      lcd.clear();
    }

    arriba();
    abajo();
    derecha();
  }
  //Dia
  while (menu == 0 && menu2 == 1) {
    lcd.setCursor(0, 0);
    lcd.print("Dia:");


    switch (dia) {
      case 1:
        lcd.setCursor(0, 1);
        lcd.print("Domingo");
        break;

      case 2:
        lcd.setCursor(0, 1);
        lcd.print("Lunes");
        break;

      case 3:
        lcd.setCursor(0, 1);
        lcd.print("Martes");
        break;

      case 4:
        lcd.setCursor(0, 1);
        lcd.print("Miercoles");
        break;

      case 5:
        lcd.setCursor(0, 1);
        lcd.print("Jueves");
        break;

      case 6:
        lcd.setCursor(0, 1);
        lcd.print("Viernes");
        break;

      case 7:
        lcd.setCursor(0, 1);
        lcd.print("Sabado");
        break;
    }
    if (der.pressed()) {
      dia++;
      lcd.clear();
    }
    if (izq.pressed()) {
      dia--;
      lcd.clear();
    }
    if (dia > 7) {
      dia = 1;
    }
    if (dia < 1) {
      dia = 7;
    }

    arriba();
    abajo();
  }
  //Sonido
  while (menu == 0 && menu2 == 2) {
    lcd.setCursor(0, 0);
    lcd.print("Sonido al pulsar:");
    if (enter.pressed()) {
      ruido = !ruido;
    }
    if (ruido == true) {
      lcd.setCursor(0, 1);
      lcd.print("Si");
    } else {
      lcd.setCursor(0, 1);
      lcd.print("No");
    }
    arriba();
  }
  //Temporizador
  while (menu == 0 && menu2 == -1) {
    while (sel == 0 && menu2 == -1) {
      lcd.setCursor(0, 0);
      lcd.print("Temporizador:");

      lcd.setCursor(0, 1);
      lcd.print("Horas:");
      lcd.setCursor(7, 1);
      lcd.print(horatemp);

      if (der.pressed() && horatemp != 24) {
        horatemp++;
      }
      if (izq.pressed() && horatemp != 0) {
        horatemp--;
      }
      if (arr.pressed() && (horatemp != 0 || mintemp != 0 || segtemp != 0)) {
        menu2++;
        temp = true;
        lcd.clear();
      }
      if (enter.pressed()) {
        sel++;
      }

      abajo();
    }
    while (sel == 1 && menu2 == -1) {
      lcd.setCursor(0, 0);
      lcd.print("Temporizador:");

      lcd.setCursor(0, 1);
      lcd.print("Minutos:");
      lcd.setCursor(9, 1);
      lcd.print(mintemp);

      if (der.pressed() && mintemp != 60) {
        lcd.clear();
        mintemp = mintemp + 5;
      }
      if (izq.pressed() && mintemp != 00) {
        mintemp = mintemp - 5;
      }
      if (arr.pressed() && (horatemp != 0 || mintemp != 0 || segtemp != 0)) {
        menu2++;
        temp = true;
        lcd.clear();
      }

      if (enter.pressed()) {
        sel++;
        lcd.clear();
      }

      abajo();
    }
    while (sel == 2 && menu2 == -1) {
      lcd.setCursor(0, 0);
      lcd.print("Temporizador:");

      lcd.setCursor(0, 1);
      lcd.print("Segundos:");
      lcd.setCursor(10, 1);
      lcd.print(segtemp);
      if (der.pressed() && segtemp != 60) {
        segtemp = segtemp + 10;
        lcd.clear();
      }
      if (izq.pressed() && segtemp != 0) {
        segtemp = segtemp - 10;
        lcd.clear();
      }

      if (arr.pressed() && (horatemp != 0 || mintemp != 0 || segtemp != 0)) {
        menu2++;
        temp = true;
        lcd.clear();
      }

      if (enter.pressed()) {
        sel = 0;
        lcd.clear();
      }

      abajo();
    }
  }
  //Menu Luz
  while (menu == 1 && menu2 == 0) {
    lcd.setCursor(0, 0);
    lcd.print("Luz+Alarma");
    if (al == false) {
      lcd.setCursor(0, 1);
      lcd.print("No");
    } else {
      lcd.setCursor(0, 1);
      lcd.print("Si");
    }
    if (enter.pressed()) {
      al = !al;
      lcd.clear();
    }
    if (suich.pressed()) {
      lcd.noDisplay();
      lcd.noBacklight();
      lcd1 = false;
      menu = 0;
      menu2 = 0;
      lcd.clear();
    }
    derecha();
    abajo();
    izquierda();
  }

  //Menu Set Time
  while (menu == 1 && menu2 == 1) {
    if (der.pressed()) {
      min = min + 30;
    }
    if (enter.pressed()) {
      min = min + 1;
    }
    if (izq.pressed()) {
      min = min - 30;
    }
    if (min == 60) {
      hora++;
      min = 0;
    }
    if (hora == 24) {
      hora = 0;
      min = 0;
    }
    if (min == -30) {
      hora--;
      min = 30;
    }
    lcd.setCursor(0, 0);
    lcd.print("Hora:");
    lcd.setCursor(0, 1);
    lcd.print(hora);
    lcd.setCursor(2, 1);
    lcd.print(":");
    lcd.setCursor(3, 1);
    lcd.print(min);

    if (suich.pressed()) {
      lcd.noDisplay();
      lcd.noBacklight();
      lcd1 = false;
      menu = 0;
      menu2 = 0;
      lcd.clear();
    }
    arriba();
    abajo();
  }
  //Menu dias
  while (menu == 1 && menu2 == 2) {
    lcd.setCursor(0, 0);
    lcd.print("Dias:");

    switch (dia2) {
      case 1:
        lcd.setCursor(0, 1);
        lcd.print("Domingo");
        if (diaal2[0] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[0] = !diaal2[0];
        }
        break;

      case 2:
        lcd.setCursor(0, 1);
        lcd.print("Lunes");
        if (diaal2[1] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[1] = !diaal2[1];
        }
        break;

      case 3:
        lcd.setCursor(0, 1);
        lcd.print("Martes");
        if (diaal2[2] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[2] = !diaal2[2];
        }
        break;

      case 4:
        lcd.setCursor(0, 1);
        lcd.print("Miercoles");
        if (diaal2[3] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[3] = !diaal2[3];
        }
        break;

      case 5:
        lcd.setCursor(0, 1);
        lcd.print("Jueves");
        if (diaal2[4] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[4] = !diaal2[4];
        }
        break;

      case 6:
        lcd.setCursor(0, 1);
        lcd.print("Viernes");
        if (diaal2[5] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[5] = !diaal2[5];
        }
        break;

      case 7:
        lcd.setCursor(0, 1);
        lcd.print("Sabado");
        if (diaal2[6] == false) {
          lcd.setCursor(10, 1);
          lcd.print("No");
        } else {
          lcd.setCursor(10, 1);
          lcd.print("Si");
        }
        if (enter.pressed()) {
          diaal2[6] = !diaal2[6];
        }
        break;
    }
    if (der.pressed()) {
      dia2++;
      lcd.clear();
    }
    if (izq.pressed()) {
      dia2--;
      lcd.clear();
    }
    if (dia2 > 7) {
      dia2 = 1;
    }
    if (dia2 < 1) {
      dia2 = 7;
    }

    arriba();
    abajo();
  }
  //Menu rele
  while (menu == 1 && menu2 == 3) {
    lcd.setCursor(0, 0);
    lcd.print("Luz?");
    if (rele == false) {
      lcd.setCursor(0, 1);
      lcd.print("No");
    } else {
      lcd.setCursor(0, 1);
      lcd.print("Si");
    }
    if (enter.pressed()) {
      rele = !rele;
    }
    if (suich.pressed()) {
      lcd.noDisplay();
      lcd.noBacklight();
      lcd1 = false;
      menu = 0;
      menu2 = 0;
      lcd.clear();
    }

    arriba();
    abajo();
  }
  //Menu Buzzer
  while (menu == 1 && menu2 == 4) {
    lcd.setCursor(0, 0);
    lcd.print("buzzer?");
    if (buzz == false) {
      lcd.setCursor(0, 1);
      lcd.print("No");
    } else {
      lcd.setCursor(0, 1);
      lcd.print("Si");
    }

    if (enter.pressed()) {
      buzz = !buzz;
    }
    if (suich.pressed()) {
      lcd.noDisplay();
      lcd.noBacklight();
      lcd1 = false;
      menu = 0;
      menu2 = 0;
      lcd.clear();
    }

    arriba();
    abajo();
  }
  //menu buzzer2
  while (menu == 1 && menu2 == 5) {

    lcd.setCursor(0, 0);
    lcd.print("Titilar?");
    lcd.setCursor(5, 1);
    lcd.print("Freq=");
    if (enter.pressed()) {
      titilar = !titilar;
    }
    if (titilar == false) {
      lcd.setCursor(0, 1);
      lcd.print("No");
    } else {
      lcd.setCursor(0, 1);
      lcd.print("Si");
    }
    lcd.setCursor(10, 1);
    lcd.print(freq);

    if (freq == 1000) {
      lcd.setCursor(14, 1);
      lcd.print("ms");
    }
    if (freq < 1000 && freq >= 100) {
      lcd.setCursor(13, 1);
      lcd.print("ms");
    }
    while (der.read() == 0 && freq < 1000) {
      freq = freq + 10;
      lcd.setCursor(10, 1);
      lcd.print(freq);
      if (freq <= 100) {
        lcd.setCursor(12, 1);
        lcd.print("ms");
      }
      if (freq == 1000) {
        lcd.setCursor(14, 1);
        lcd.print("ms");
      }
      if (freq < 1000 && freq >= 100) {
        lcd.setCursor(13, 1);
        lcd.print("ms");
      }
      delay(100);
      if (der.read() == 1) {
        lcd.clear();
      }
    }
    while (izq.read() == 0 && freq > 100) {
      freq = freq - 10;
      lcd.setCursor(10, 1);
      lcd.print(freq);
      if (freq <= 100) {
        lcd.setCursor(12, 1);
        lcd.print("ms");
      }
      if (freq == 1000) {
        lcd.setCursor(14, 1);
        lcd.print("ms");
      }
      if (freq < 1000 && freq >= 100) {
        lcd.setCursor(13, 1);
        lcd.print("ms");
      }
      delay(100);
      if (izq.read() == 1) {
        lcd.clear();
      }
    }
    arriba();
  }
  //Menu Impresora
  while (menu == 2 && menu2 == 0) {
    lcd.setCursor(0, 0);
    lcd.print("Sensor Impresora");

    if (sensimp == 0) {
      lcd.setCursor(0, 1);
      lcd.print("Las dos");
      ender = true;
      arty = true;
    }
    if (sensimp == 1) {
      lcd.setCursor(0, 1);
      lcd.print("Ender");
      ender = true;
      arty = false;
    }
    if (sensimp == 2) {
      lcd.setCursor(0, 1);
      lcd.print("Artillery");
      ender = false;
      arty = true;
    }
    if (sensimp == 3) {
      lcd.setCursor(0, 1);
      lcd.print("Apagado");
      ender = false;
      arty = false;
    }

    if (enter.pressed()) {
      sensimp++;
      lcd.clear();
      if (sensimp == 4) {
        sensimp = 0;
      }
    }

    izquierda();
    abajo();
  }
  //Volumen Impresora
  while (menu == 2 && menu2 == 1) {
    lcd.setCursor(0, 0);
    lcd.print("Volumen:");
    if (enter.pressed()) {
      volbuzzerlcd = volbuzzerlcd + 10;
    }
    if (izq.pressed()) {
      volbuzzerlcd = volbuzzerlcd - 5;
      lcd.clear();
    }
    if (der.pressed()) {
      volbuzzerlcd = volbuzzerlcd + 5;
    }
    volbuzzer = map(volbuzzerlcd, 0, 100, 0, 255);
    if (volbuzzerlcd > 100) {
      volbuzzerlcd = 0;
      lcd.clear();
    }
    if (volbuzzerlcd < 0) {
      volbuzzerlcd = 100;
      lcd.clear();
    }
    if (volbuzzerlcd >= 10 && volbuzzerlcd < 100) {
      lcd.setCursor(2, 1);
      lcd.print("%");
    } else {
      if (volbuzzerlcd >= 0 && volbuzzer <= 5) {
        lcd.setCursor(1, 1);
        lcd.print("%");
      }
      if (volbuzzerlcd == 100) {
        lcd.setCursor(3, 1);
        lcd.print("%");
      }
    }
    lcd.setCursor(0, 1);
    lcd.print(volbuzzerlcd);

    arriba();
  }
}