#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4); 

bool t1 = true;
bool t2 = true;
bool t3 = true;

int osobne = 0;
int nakladne = 0;
int ine = 0;

void setup() {
  pinMode(5, INPUT);
  digitalWrite(5, HIGH);
  pinMode(6, INPUT);
  digitalWrite(6, HIGH);
  pinMode(7, INPUT);
  digitalWrite(7, HIGH);
  
  lcd.begin(20, 4); 
  lcd.setCursor(0, 0);
  lcd.print("osobne: ");
  lcd.print(osobne);
  lcd.setCursor(0, 1);
  lcd.print("nakladne: ");
  lcd.print(nakladne);
  lcd.setCursor(0, 2);
  lcd.print("ine: ");
  lcd.print(ine);
}

void loop() {
  if (digitalRead(5) == LOW && t1 == true) {
    t1 = false;
    osobne++;
    lcd.setCursor(8, 0); 
    lcd.print("     ");  
    lcd.setCursor(8, 0);
    lcd.print(osobne);
  }
  if (digitalRead(5) == HIGH && t1 == false) {
    t1 = true;
  }
  if (digitalRead(6) == LOW && t2 == true) {
    t2 = false;
    nakladne++;
    lcd.setCursor(9, 1); 
    lcd.print("     ");  
    lcd.setCursor(9, 1);
    lcd.print(nakladne);
  }
  if (digitalRead(6) == HIGH && t2 == false) {
    t2 = true;
  }
  if (digitalRead(7) == LOW && t3 == true) {
    t3 = false;
    ine++;
    lcd.setCursor(4, 2); 
    lcd.print("     ");  
    lcd.setCursor(4, 2);
    lcd.print(ine);
  }
  if (digitalRead(7) == HIGH && t3 == false) {
    t3 = true;
  }
}