Arduino temp. code

// PREVERI PINE ARDUINO -< ATTINY - PREDVSEM 9 IN 8!!!
#include <OneWire.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(9, 8, 6, 5, 4, 3);
//int DS18S20_Pin = A2; //DS18S20 Signal pin
//pinMode(DS18S20_Pin, INPUT);


//Temperature chip i/o
OneWire ds(2);  // on digital pin 2
//OneWire ds(A2);  // on digital pin 2

void setup(void) {
//  Serial.begin(9600);
  lcd.begin(16, 2);
//  pinMode(DS18S20_Pin, INPUT);
}

void loop(void) {
//  digitalWrite(backLight, HIGH);
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  float temperature = getTemp();
  lcd.setCursor(0, 0);
  lcd.print("Temp.: ");
  lcd.setCursor(7, 0);
  lcd.print(temperature);
//  lcd.setCursor(13, 0);
//  lcd.print((char)239);
//  lcd.setCursor(14, 0);
//  lcd.print("C");
  lcd.setCursor(0, 1);
  if (temperature < 20) {
    lcd.print("Zebeeee :(");
  } else if (temperature > 25) {
    lcd.print("Vroceee :(");
  } else {
    lcd.print("Milina! :)");
  }
//  Serial.print("Temperatura: ");
//  Serial.println(temperature);
  delay(2000); //just here to slow down the output so it is easier to read
//  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
//  lcd.print(millis()/1000);
}

float getTemp(){
  //returns the temperature from one DS18S20 in DEG Celsius

  byte data[12];
  byte addr[8];

  if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      ds.reset_search();
      return -1000;
  }

  if ( OneWire::crc8( addr, 7) != addr[7]) {
//      Serial.println("CRC is not valid!");
      return -2000;
  }

  if ( addr[0] != 0x10 && addr[0] != 0x28) {
//      Serial.print("Device is not recognized");
      return -3000;
  }

  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);
  // test
  for (int j = 0; j < 8; j++) {
//    Serial.print(addr[j],DEC);
//    Serial.print("/");
//    Serial.print(addr[j],HEX);
//    Serial.print(" ");
  }
  // test konec
  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;

}