#include <Keypad.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>

#define ONE_WIRE_BUS 12 //La ligne de communication pour les DS18B20


OneWire oneWire(ONE_WIRE_BUS);

DallasTemperature sensors(&oneWire);

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display

//Constants
#define ROWS 4
#define COLS 4

//Parameters
const char kp4x4Keys[ROWS][COLS] 	= {{'1', '2', '3', 'A'}, {'4', '5', '6', 'B'}, {'7', '8', '9', 'C'}, {'*', '0', '#', 'D'}};
byte rowKp4x4Pin [4] = {9, 8, 7, 6};
byte colKp4x4Pin [4] = {5, 4, 3, 2};

//variable pour le lecture du clavier
String clavier = "";

//Variables pour l'utilisation du clavier
Keypad kp4x4 	= Keypad(makeKeymap(kp4x4Keys), rowKp4x4Pin, colKp4x4Pin, ROWS, COLS);


//variable servant a la selection de la sonde à afficher sur l'écran
String complet = "1";

//variables contenant les informations à afficher sur l'écran
String infoSonde = "";
String valeurSonde = "";


float recupTemp(String sonde){

  int val =  sonde.toInt();

  return sensors.getTempCByIndex(val);

}


void readKp4x4() { /* function readKp4x4 */
 	//// Read button states from keypad
 	char customKey = kp4x4.getKey();

  

  /*if (customKey) {
    
    if(String(customKey)=="#"){

      complet = clavier;

      clavier = "";

    }
    else{
      clavier += String(customKey);
    }

  }*/



  if (customKey) { 
      complet = String(customKey);
  }
  
  
  //String RecupValeur


  switch(complet.toInt()){
            //DS18B20
    case 1: infoSonde = "Sonde DS18B20(1)";
            valeurSonde = String(recupTemp("0")) + " C";
            break;
    
            //DS18B20
    case 2: infoSonde = "Sonde DS18B20(2)";
            valeurSonde = String(recupTemp("1")) + " C";
            break;
    
            //DS18B20
    case 3: infoSonde = "Sonde DS18B20(3)";
            valeurSonde = String(recupTemp("2")) + " C";
            break;
    
            //DS18B20
    case 4: infoSonde = "Sonde DS18B20(4)";
            valeurSonde = String(recupTemp("3")) + " C";
            break;
    
            //DS18B20
    case 5: infoSonde = "Sonde DS18B20(5)";
            valeurSonde = String(recupTemp("4")) + " C";
            break;
    
            //DS18B20
    case 6: infoSonde = "Sonde DS18B20(6)";
            valeurSonde = String(recupTemp("5")) + " C";
            break;
  
            //DS18B20
    case 7: infoSonde = "Sonde DS18B20(7)";
            valeurSonde = String(recupTemp("6")) + " C";
            break;
    
            //DS18B20
    case 8: infoSonde = "Sonde DS18B20(8)";
            valeurSonde = String(recupTemp("7")) + " C";
            break;
    
            //DS18B20
    case 9: infoSonde = "Sonde DS18B20(9)";
            valeurSonde = String(recupTemp("8")) + " C";
            break;



    default: infoSonde = "Erreur Clavier";
             valeurSonde = "valeur inconnue";
  }



  lcd.clear();
  lcd.backlight();
  lcd.setCursor(0,0);

  lcd.print(infoSonde);
  
  lcd.setCursor(0,1);

  lcd.print(valeurSonde);
  

  
}


void setup() {
  // put your setup code here, to run once:
  lcd.init();
  sensors.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  sensors.requestTemperatures();
  readKp4x4();

}