#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0X27,16,2);
int pir_pin=13;
int buzzer_pin=12;
void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.setCursor(0,0);
  pinMode(pir_pin,INPUT);
  pinMode(buzzer_pin,INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  int x=digitalRead(pir_pin);
  if(x==1){
    lcd.clear();
    lcd.setCursor(6,0);
    lcd.print("buzzer");
    lcd.setCursor(8,1);
    lcd.print("on");
    digitalWrite(buzzer_pin, HIGH);
    delay(3000);
  }else{
    digitalWrite(buzzer_pin, LOW);
    lcd.setCursor(6,0);
    lcd.print("buzzer");
    lcd.setCursor(8,1);
    lcd.print("off");
  }

}