#include <LiquidCrystal_I2C.h>
#include <Wire.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int vrPin = 4;        
const int buttonPin = 2;

int VR = 0;
int buttonState = 0;
int lastButtonState = 1;

void setup() {
  Wire.begin();
  lcd.init();
  lcd.backlight();
  pinMode(vrPin, INPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
 
  VR = analogRead(vrPin);
  lcd.setCursor(0, 0);
  lcd.print("VR Value: ");
  lcd.setCursor(10, 0);
  lcd.print(VR);
  lcd.print("    "); 
  buttonState = digitalRead(buttonPin);

  
  if (buttonState == LOW && lastButtonState == HIGH) {
    VR = 0;
    lcd.clear(); 
    lcd.setCursor(0, 0);
    lcd.print("VR Value: 0"); 
    delay(500);
  }

  lastButtonState = buttonState;
  delay(100); 
}