ertec mini lcd I2C nupud 2digi long

[code]
#include <LiquidCrystal.h>
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <Wire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 3
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress intemp = {
   0x28, 0xFF, 0x26, 0xA7, 0x35, 0x16, 0x4, 0xCF };
DeviceAddress backtemp = {
   0x28, 0xFF, 0xEE, 0xA3, 0x35, 0x16, 0x4, 0xDD };
  //0x28, 0xFF, 0x80, 0x5C, 0x35, 0x16, 0x3, 0x6};

  LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

unsigned long interval1 = 2000;
unsigned long interval2 = 6000; // tesversioon
//unsigned long interval2 = 600000; // tuleb arvestada, et interval2 tegelikuks
unsigned long prevTime = 0; //pikkuseks jaab interval2 - interval1
unsigned long curTime;
unsigned long prevTimeButton;
unsigned long prevTimeButton2;
const int kollaPin = 4;
const int siniPin = 5;
int kollaState = LOW;
int siniState = LOW;
int val = 0;

//int INtempPin = A0;
float tempCin;
float tempCback;
float in;
float back;
float SET = 25.0;
float setk = 0.0;
const int buttonPin = 2;
const int button2Pin = 6;
int buttonPushCounter =0;
int button2PushCounter =0;
int buttonState =0;
int button2State =0;
int lastButtonState =0;
int lastButton2State =0;

//                BS  E  D4 D5  D6 D7
//LiquidCrystal lcd(7, 8, 9, 10, 11, 12);

void setup()
{
   Serial.begin(9600);
  lcd.begin(16, 2);
   for(int i = 0; i< 5; i++)
  {
    lcd.backlight();
    delay(50);
    lcd.noBacklight();
    delay(50);
  }
  lcd.backlight();

    pinMode(kollaPin, OUTPUT);
    pinMode(siniPin, OUTPUT);

    pinMode(buttonPin, INPUT);
    pinMode(button2Pin,INPUT);

      sensors.begin();
  sensors.setResolution(intemp, 12);
  sensors.setResolution(backtemp, 12);
    }
void printlnTemperature(DeviceAddress deviceAddress) {
  tempCin = sensors.getTempC(deviceAddress);
 // Serial.println(tempCin);

  tempCback = sensors.getTempC(deviceAddress);
  //Serial.println(tempCback);
}

void loop()  {
unsigned long curTime = millis();
  sensors.requestTemperatures();
  Serial.print("In temp: ");
  printlnTemperature(intemp);
 // Serial.print("\n\r");
  Serial.println(tempCin);
  delay(1);

 lcd.setCursor(0, 0);
    lcd.print("I");
  lcd.setCursor(1, 0);
  lcd.print(tempCin);
   lcd.setCursor(5, 0);
  lcd.print("B");
  in = tempCin;
  sensors.requestTemperatures();
  Serial.print("Back temp: ");
  printlnTemperature(backtemp);
  //Serial.print("\n\r");
  Serial.println(tempCback);
  delay(1);



 lcd.setCursor(5, 0);
  lcd.print("B");
  lcd.setCursor(6, 0);
  lcd.print(tempCback);
  lcd.setCursor(10, 0);
  lcd.print((char)223);
back =tempCback;

 buttonState = digitalRead(buttonPin);
  if (buttonState != lastButtonState) {
    if (buttonState == HIGH) {
      setk++;
    }
  }
  else if (buttonState == lastButtonState && curTime - prevTimeButton > interval1) {
    if (buttonState == HIGH) {
      SET++;
    }
  }
  if (buttonState == LOW) {
    prevTimeButton = curTime;
  }

  button2State = digitalRead(button2Pin);
  if (button2State != lastButton2State) {
    if (button2State == HIGH) {
      setk--;
    }
  }
  else if (button2State == lastButton2State && curTime - prevTimeButton2 > interval1) {
    if (button2State == HIGH) {
      SET--;
    }
  }
  if (button2State == LOW) {
    prevTimeButton2 = curTime;
  }
  lastButtonState = buttonState;
  lastButton2State = button2State;

  lcd.setCursor(11, 0);
  lcd.print("S");
  lcd.setCursor(12, 0);
  lcd.print(setk/10 + SET);
  lcd.setCursor(14, 1);
 if (setk/10 + SET +1 < tempCback) {
 lcd.print("CO");
 }
 else if (setk/10 + SET > 1+ tempCback){
  lcd.print("WO");
 }
 else if ((setk/10 + SET - tempCback) <1 > -1){
  lcd.print("OK");
   }

  lcd.setCursor(0, 1);
  lcd.print("ERTEC");
  lcd.setCursor(6, 1);
  lcd.print(700*4.19*(in-back)/3600);
  lcd.setCursor(10, 1);
 lcd.print(" KW ");


 //could down
  if (setk/10 + SET + 1 < tempCback) {

    if (curTime - prevTime < interval1) {
      digitalWrite(4, LOW);
      digitalWrite(5, HIGH);
    }
    if (curTime - prevTime >= interval1) {
      digitalWrite(5, LOW);
    }
    if (curTime - prevTime > interval2) { //peale teist intervali voib ka led
      // digitalWrite(4, HIGH); // korgeks panna, kui progega edasi minna
      prevTime = curTime;
    }
  }

  //warm up
  if (setk/10 + SET - 1 > tempCback) {
    //if (val*0.065+5 - tempC <= 1 && val*0.065+5 - tempC > 0){

    if (curTime - prevTime < interval1) {
      digitalWrite(5, LOW);
      digitalWrite(4, HIGH);
      delay(10);
    }
    if (curTime - prevTime >= interval1) {
      digitalWrite(4, LOW);
    }
    if (curTime - prevTime > interval2) { //peale teist intervali voib ka led
      //digitalWrite(6, HIGH); // korgeks panna, kui progega edasi minna
      prevTime = curTime;

    }
  }
}
[/code]