#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);

const int buttonpin=33;
const int LEDpin=32;
const int buzzer=25;

int ledState = LOW;
int lastButtonState;
int currentButtonState;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(buttonpin, INPUT_PULLUP);
  pinMode(LEDpin, OUTPUT);
  pinMode(buzzer, INPUT);
  currentButtonState = digitalRead(buttonpin);

  lcd.init();
  lcd.backlight();
}

void loop() {
  lastButtonState = currentButtonState;
  currentButtonState = digitalRead(buttonpin);
  if (lastButtonState == HIGH && currentButtonState == LOW){
    Serial.println("THE BUTTON is PRESSED");
    digitalWrite(buzzer, HIGH);

    lcd.setCursor(0,0);
    lcd.print("ESP32");

    tone(buzzer,100);
    ledState = !ledState;
    digitalWrite(LEDpin,ledState);
    noTone(buzzer);
  }
  // put your main code here, to run repeatedly:
  delay(100); // this speeds up the simulation
}