#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

const int buttonPin = 2;  
int buttonState = 0;      
int lastButtonState = HIGH;
int counter = 0;          

void setup() {
 
  lcd.begin(16, 2);
  pinMode(buttonPin, INPUT_PULLUP);
 
  lcd.setCursor(0, 0);
  lcd.print(counter);
}

void loop() {

  buttonState = digitalRead(buttonPin);
 
  if (buttonState == LOW && lastButtonState == HIGH) {
    counter++;  
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(counter);
    delay(200);
  }
  lastButtonState = buttonState;
}