Multiple DS18B20 - Version imprimable

Code :
/*********

  Rui Santos

  Complete project details at https://RandomNerdTutorials.com  

*********/



#include <OneWire.h>

#include <DallasTemperature.h>



// Data wire is plugged TO GPIO 4

#define ONE_WIRE_BUS 4



// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)

OneWire oneWire(ONE_WIRE_BUS);



// Pass our oneWire reference to Dallas Temperature. 

DallasTemperature sensors(&oneWire);



// Number of temperature devices found

int numberOfDevices;



// We'll use this variable to store a found device address

DeviceAddress tempDeviceAddress; 



void setup(){

  // start serial port

  Serial.begin(115200);

  

  // Start up the library

  sensors.begin();

  

  // Grab a count of devices on the wire

  numberOfDevices = sensors.getDeviceCount();

  

  // locate devices on the bus

  Serial.print("Locating devices...");

  Serial.print("Found ");

  Serial.print(numberOfDevices, DEC);

  Serial.println(" devices.");



  // Loop through each device, print out address

  for(int i=0;i<numberOfDevices; i++){

    // Search the wire for address

    if(sensors.getAddress(tempDeviceAddress, i)){

      Serial.print("Found device ");

      Serial.print(i, DEC);

      Serial.print(" with address: ");

      printAddress(tempDeviceAddress);

      Serial.println();

    } else {

      Serial.print("Found ghost device at ");

      Serial.print(i, DEC);

      Serial.print(" but could not detect address. Check power and cabling");

    }

  }

}



void loop(){ 

  sensors.requestTemperatures(); // Send the command to get temperatures

  

  // Loop through each device, print out temperature data

  for(int i=0;i<numberOfDevices; i++){

    // Search the wire for address

    if(sensors.getAddress(tempDeviceAddress, i)){

      // Output the device ID

      Serial.print("Temperature for device: ");

      Serial.println(i,DEC);

      // Print the data

      float tempC = sensors.getTempC(tempDeviceAddress);

      Serial.print("Temp C: ");

      Serial.print(tempC);

      Serial.print(" Temp F: ");

      Serial.println(DallasTemperature::toFahrenheit(tempC)); // Converts tempC to Fahrenheit

    }

  }

  delay(5000);

}



// function to print a device address

void printAddress(DeviceAddress deviceAddress) {

  for (uint8_t i = 0; i < 8; i++){

    if (deviceAddress[i] < 16) Serial.print("0");

      Serial.print(deviceAddress[i], HEX);

  }

}