#define pirpin 7
#define buzzer 8
int statuspir = LOW;
int gerakanpir;
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
int count = 1;


void setup() {
  // put your setup code here, to run once:
  pinMode(pirpin, INPUT);
  Serial.begin(9600);
  pinMode(buzzer, OUTPUT);

lcd.init();
lcd.backlight();
lcd.setCursor(2,0);

}

void loop() {
  // put your main code here, to run repeatedly:
  gerakanpir=digitalRead(pirpin);
  if(gerakanpir==HIGH)
  {
    if(statuspir==LOW)
    {
      lcd.clear();
      digitalWrite(buzzer, HIGH);
      statuspir= HIGH;
      tone(buzzer, 101);
      delay(100);
      noTone(buzzer);
      lcd.print(count);
      count ++;
      
    }
    
  }
  else
  {
    if(statuspir==HIGH)
    {
      digitalWrite(buzzer, LOW);
      statuspir=LOW;
    }
  }
}