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

// GPIO where the DS18B20 is connected to
const int oneWireBus = 12;
const int wire2 = 13;
const int wire3 = 14;

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(oneWireBus);
OneWire oneWire2(wire2);
OneWire oneWire3(wire3);

// Pass our oneWire reference to Dallas Temperature sensor 
DallasTemperature sensors(&oneWire);
DallasTemperature sensors2(&oneWire2);
DallasTemperature sensors3(&oneWire3);

void setup() {
  // Start the Serial Monitor
  Serial.begin(115200);
  // Start the DS18B20 sensor
  sensors.begin();
  sensors2.begin();
  sensors3.begin();
}

void loop() {
  sensors.requestTemperatures(); 
  float temperatureC = sensors.getTempCByIndex(0);
  sensors2.requestTemperatures(); 
  float temperatureC2 = sensors2.getTempCByIndex(0);
  sensors3.requestTemperatures(); 
  float temperatureC3 = sensors3.getTempCByIndex(0);
  Serial.print(temperatureC);
  Serial.println("ºC");
  Serial.print(temperatureC2);
  Serial.println("ºC");
  Serial.print(temperatureC3);
  Serial.println("ºC");
  delay(5000);
}