#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 4

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);
// Pass oneWire reference to Dallas Temperature sensor 
DallasTemperature sensors(&oneWire);

void setup() {
  // Start serial communication
  Serial.begin(9600);

  // Initialize the DS18B20 sensor
  sensors.begin();
}

void loop() {
  // Request temperature readings from all sensors on the bus
  sensors.requestTemperatures();

  // Get the temperature from the DS18B20 sensor
  float temperatureC = sensors.getTempCByIndex(0);
 
    Serial.print("Temperature: ");
    Serial.print(temperatureC);
    Serial.println(" °C");

  delay(1000);
}