Arduino - OneWire kode

#include <OneWire.h>

OneWire ds(8); // DS18x20 Temperature chip i/o One-wire
OneWire ds1(12);

//Tempsensor variables
byte address0[8] = {0x10, 0xB6, 0xBE, 0x30, 0x2, 0x8, 0x0, 0xD2}; // External DS18B20 GPS Sensor 28 73 CD F5 2 0 0 AE
byte address1[12] = {0x10, 0x6E, 0xBD, 0x30, 0x2, 0x8, 0x0, 0xF9};
int temp0 = 0, temp1 =0;

// gets temperature data from onewire sensor network, need to supply byte address, it'll check to see what type of sensor and convert appropriately
  int getTempdata(byte sensorAddress[8]) {
  int HighByte, LowByte, TReading, SignBit, Tc_100, Whole;
  byte data[12], i, present = 0;

    ds.reset();
    ds.select(sensorAddress);
    ds.write(0x44,1);         // start conversion, with parasite power on at the end

    delay(3000);     // maybe 750ms is enough, maybe not
    // we might do a ds.depower() here, but the reset will take care of it.

  present = ds.reset();
  ds.select(sensorAddress);
  ds.write(0xBE);         // Read Scratchpad

  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = ds.read();
  }
  LowByte = data[0];
  HighByte = data[1];
  TReading = (HighByte << 8) + LowByte;
  SignBit = TReading & 0x8000;  // test most sig bit
  if (SignBit) // negative
  {
    TReading = (TReading ^ 0xffff) + 1; // 2's comp
  }

  if (sensorAddress[0] == 0x10) {
    Tc_100 = TReading * 50;    // multiply by (100 * 0.0625) or 6.25
  }
  else {
    Tc_100 = (6 * TReading) + TReading / 4;    // multiply by (100 * 0.0625) or 6.25
  }


  Whole = Tc_100 / 100;  // separate off the whole and fractional portions

    if (SignBit) // If its negative
  {
     Whole = Whole * -1;
  }
  return Whole;
}

void setup(void) {
  // initialize inputs/outputs
  // start serial port
  Serial.begin(9600);
}
void loop(void) {

  temp0 = getTempdata(address0);
  temp1 = getTempdata(address1);

char msg[100];

snprintf(msg, 100, "Internal Temperature: %i\n",  "External Temperature: %i\n", temp0, temp1);

Serial.print(msg);

}