#include <EEPROM.h>
#include <DS18B20.h>

byte temp;
byte prevTemp;

DS18B20 ds(6);

void setup() {
  Serial.begin(9600);
  EEPROM.read(prevTemp);
}

void loop()
{
  // Može se otkloniti komentar, ali nepotrebno
  // EEPROM.read(prevTemp); 
  ds.selectNext();
  temp = static_cast<int>(ds.getTempC());

  Serial.print(prevTemp);
  Serial.print("\t");
  Serial.println(temp);

  if(prevTemp != temp) {
    EEPROM.write(0x0, temp);
    Serial.print("Nova vrijednost zapisana u EEPROM: ");
    Serial.println(temp);
    prevTemp = temp;
  }

  delay(500);
}