//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display
volatile unsigned long counter = 0;
byte pin_Trigger = 2;
unsigned long loading = 0;

void tambahVariabel(){
  counter++;
}

void setup()
{
  //setting pin interupt
  pinMode(pin_Trigger, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(pin_Trigger),tambahVariabel,LOW);
  lcd.init();                      
  // Print a message to the LCD.
  lcd.backlight();
}


void loop()
{
  if(loading<20000){
    for(int i = 0; i < 20000; i++){
      loading++;
      lcd.setCursor(0,1);
      lcd.print("Loading: ");
      lcd.setCursor(10,1);
      lcd.print(loading);
      
      lcd.setCursor(0,2);
      lcd.print("Counter: ");
      lcd.setCursor(10,2);
      lcd.print(counter);
    }
  }
}