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

#define ONE_WIRE_BUS 12

// setup OneWire instance for communication with multiple DS18B20
OneWire oneWire(ONE_WIRE_BUS);

// DallasTemperature library for reading the temps
DallasTemperature sensors(&oneWire);

int deviceCount = 0;

void setup() {

  Serial.begin(9600);
  // put your setup code here, to run once:
  // locate sensors on the OneWire bus
  Serial.print("Locating devices...");
  deviceCount = sensors.getDeviceCount();
  
  if (deviceCount == 0) {
    Serial.println("Failed to find devices");
    for(;;);
  }
  
  Serial.print("Found: ");
  Serial.print(deviceCount, DEC);
  Serial.println(" devices.");
}

void loop() {
  // put your main code here, to run repeatedly:

  sensors.requestTemperatures();
  for (int i = 0;  i < deviceCount;  i++)
  {
    Serial.print("Sensor ");
    Serial.print(i+1);
    Serial.print(" : ");
    float tempC = sensors.getTempCByIndex(i);
    Serial.print(tempC);
    Serial.print((char)176);//shows degrees character
    Serial.print("C");
  }
  
  Serial.println("");
  delay(1000);

}