//Le capteur a DS 18B20 3 fils: +,masse et sortie
//Resistance de 4.7k entre +5V et sortie du capteur
//Doc:  https://create.arduino.cc/projecthub/TheGadgetBoy/ds18b20-digital-temperature-sensor-and-arduino-9cc806

//Possibilité de reduction ŕ deux fils: masse et Data
//Voir https://playground.arduino.cc/Learning/OneWire

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

//Instancie  2 objets

// Setup a oneWire instance to communicate with any OneWire devices
// (not just Maxim/Dallas temperature ICs)
OneWire capteur(7); // Sortie du capteur sur port7 de l'arduino

// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&capteur);

float capTemp;

void setup()
{
  sensors.begin();        // Start up the library
  Serial.begin(9600);     // Start serial port
}
void loop()
{ 
  sensors.requestTemperatures();
  // call sensors.requestTemperatures() to issue a global temperature
  // request to all devices on the bus
  
  capTemp = sensors.getTempCByIndex(0);// Why "byIndex"?  
   // You can have more than one DS18B20 on the same bus.  
   // 0 refers to the first IC on the wire 
   
  Serial.println(capTemp, 2);// envoie la temperature du capteur  sur le port usb de l'Arduino
  Serial.println();
  delay(1000);
}


*****************************************************************************************

/**
 * Code Arduino pour lire deux capteurs DS18B20 sur un bus 1-Wire.
 */
#include <OneWire.h>
#include <DallasTemperature.h>

OneWire oneWire(7);
DallasTemperature sensors(&oneWire);

void setup() {
sensors.begin();
Serial.begin(9600);
}

void loop() 
{
  sensors.requestTemperatures();
  float currentTemp0;
  currentTemp0 = sensors.getTempCByIndex(0);
  float currentTemp1;
  currentTemp1 = sensors.getTempCByIndex(1);

Serial.print("A");
Serial.print(currentTemp0, 2);
Serial.println();
Serial.print("B");
Serial.print(currentTemp1, 2);
Serial.println();  
delay(1000);
}