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

// Data wire is connected to the pins
#define SENSOR_PIN_1 2
#define SENSOR_PIN_2 3
#define SENSOR_PIN_3 4

// Number of sensors
#define NUM_SENSORS 3

// Setup a oneWire instances for each sensor
OneWire oneWire_1(SENSOR_PIN_1);
OneWire oneWire_2(SENSOR_PIN_2);
OneWire oneWire_3(SENSOR_PIN_3);

// Pass our oneWire references to Dallas Temperature sensors
DallasTemperature sensors_1(&oneWire_1);
DallasTemperature sensors_2(&oneWire_2);
DallasTemperature sensors_3(&oneWire_3);

void setup() {
  // Start serial communication
  Serial.begin(9600);
  
  // Initialize sensors
  sensors_1.begin();
  sensors_2.begin();
  sensors_3.begin();
}

void loop() {
  // Request temperature data from all sensors
  sensors_1.requestTemperatures();
  sensors_2.requestTemperatures();
  sensors_3.requestTemperatures();

  // Get temperatures in Celsius
  float temperature_1 = sensors_1.getTempCByIndex(0);
  float temperature_2 = sensors_2.getTempCByIndex(0);
  float temperature_3 = sensors_3.getTempCByIndex(0);

  // Print temperatures to serial monitor
  Serial.print("Temperature 1: ");
  Serial.print(temperature_1);
  Serial.println(" °C");

  Serial.print("Temperature 2: ");
  Serial.print(temperature_2);
  Serial.println(" °C");

  Serial.print("Temperature 3: ");
  Serial.print(temperature_3);
  Serial.println(" °C");

  // Wait for a while before taking the next reading
  delay(1000);
}