#include <Keypad.h>
#include <LiquidCrystal.h>
//Inicializamos los pines conectados de la pantalla de cristal liquido al esp32
LiquidCrystal lcd(22,23,5,18,19,21);

const byte ROWS = 4; //four rows
const byte COLS = 4; //three columns
char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'},
};
byte rowPins[ROWS] = {32, 33, 25, 26}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {27, 14, 12, 13}; //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
char key;
int dato;
int valor = 0;
int boton=1;
char Captura;
int pos =13;
char valor1[6];
byte Indice=0;

void setup()
{

  lcd.begin(16,2);
    lcd.setCursor(2,0);
  lcd.print("BIENVENIDOS");
  delay(3000);
  lcd.clear();
   lcd.setCursor(1,1);
  lcd.print("selecc el menu");
  
  delay(3000);
  lcd.clear();
}


void loop()
{
  lcd.setCursor(0,0);
  lcd.print("1.nivel");
  lcd.setCursor(0,1);
  lcd.print("2.temp");
  lcd.setCursor(13,1);
  lcd.print("3.>");
  key = keypad.getKey();
  
  if (key)
  {
    if(key == '1')
    { 
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("RELE TEMP >1");
      lcd.setCursor(14,1);
      lcd.print("#<");
       lcd.setCursor(14,0);
   lcd.print("*>");
   delay(100);
   
      dato = 1;
      while(dato)
      {
       key = keypad.getKey();
        if(key == '1')
        {
         lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("INGRESE EL % DE");
      lcd.setCursor(0,1);
      lcd.print("RUN DEL RELE:");}
      key=0;
      key = keypad.getKey();
      

         if (key!='A'&&key!='B'&&key!='C'&&key!='D'&&key!='#'){ 
    Captura=key;
  } 
  if(Captura&& pos<16){
  lcd.setCursor(pos,1);
  lcd.print(Captura);
  valor1[Indice]=Captura;
  lcd.setCursor(pos+1,1);
    lcd.print("%");
   Indice++;
  pos=pos+1;
  }
      }          

      //dato       
        
       switch(key){
  
    case 'A':
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("GUARDANDO");
    delay(1000);
    
    while(keypad.getKey()!='B'){
    lcd.setCursor(0,0);
    lcd.print("VALOR GUARDADO");
    lcd.setCursor(0,1);
    lcd.print(valor1); 
      lcd.setCursor(3,1);
    lcd.print("% de nivel");
    Indice=0;
    pos=13;
    }
      break;  
        if(key == '3')
        {
          dato = 0;
          lcd.clear();
          lcd.setCursor(0,3);
          lcd.print("RETORNANDO MENU");
          delay(2000);
          lcd.clear();
          key = 0;
        }
      }

   // }
//////////////////////////////////
  if(key == '2')
    {
      lcd.clear();
      dato = 1;
      while(dato)
      {
        lcd.setCursor(0,0);
      lcd.print("RELE NIVEL>2");
      lcd.setCursor(0,1);
      lcd.print("press # volver");
      key = keypad.getKey();
        if(key == '#')
        {
          dato = 0;
          lcd.clear();
          lcd.setCursor(0,0);
          lcd.print("RETORNANDO");
         // delay(100);
          lcd.clear();
          //return;
          key = 0;
        }
        for(int i=0;i<3; i++)
        {
          digitalWrite(13,HIGH);
          delay(100);
          digitalWrite(13,LOW);
          delay(100);
          
        }
      }
    }
    //////
    if(key == '3')
    {
       lcd.clear();
       lcd.setCursor(0,0);
       lcd.print("programa creado por");
       lcd.setCursor(0,1);
       lcd.print("editronikx 2022");
       lcd.setCursor(0,3);
       lcd.print("SUSCRIBETE...");
       delay(4000);
       lcd.clear();
    }
  
  }
}}