Arduino temp. code

#include <OneWire.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(9, 8, 6, 5, 4, 3);

//Temperature chip i/o
OneWire ds(2);  // on digital pin 2

void setup(void) {
  lcd.begin(16, 2);
}

void loop(void) {
  float temperature = getTemp();
  lcd.setCursor(0, 0);
  lcd.print("Temp.: ");
  lcd.setCursor(7, 0);
  lcd.print(temperature);
  lcd.setCursor(0, 1);
  if (temperature < 20) {
    lcd.print("Zebeeee :(");
  } else if (temperature > 25) {
    lcd.print("Vroceee :(");
  } else {
    lcd.print("Milina! :)");
  }
  delay(2000); //just here to slow down the output so it is easier to read
}

float getTemp(){
  //returns the temperature from one DS18S20 in DEG Celsius
  byte data[12];
  byte addr[8]={0x28, 0x79, 0x02, 0xB9, 0x04, 0x00, 0x00, 0x0F};
  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end
  byte present = ds.reset();
  ds.select(addr);
  ds.write(0xBE); // Read Scratchpad
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  ds.reset_search();
  byte MSB = data[1];
  byte LSB = data[0];
  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;
  return TemperatureSum;
}