#include <OneWire.h> 
#include <DallasTemperature.h> 
 
// Define the pin connected to the DS18B20 sensor 
const int oneWireBus = 2; 
 
// Setup a OneWire instance and pass it to DallasTemperature 
OneWire oneWire(oneWireBus); 
DallasTemperature sensors(&oneWire); 
 
void setup() { 
    Serial.begin(115200); 
    sensors.begin();  // Initialize the DS18B20 sensor 
} 
 
void loop() { 
    sensors.requestTemperatures();  // Request temperature 
    float temperatureC = sensors.getTempCByIndex(0); 
     
    Serial.print("Temperature: "); 
    Serial.print(temperatureC); 
    Serial.println(" °C"); 
     
    delay(1000);  // Read temperature every second 
}