#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);

int ledPin = 13;                
int pir = 2;               
int pirState = LOW;             
int val = 0;

void setup() {
  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
  pinMode(ledPin, OUTPUT);      
  pinMode(pir, INPUT);
}

void loop() {
  val = digitalRead(pir);  
  lcd.setCursor(4, 0);
  lcd.print("Gerakan");
  if (val == HIGH) {            
    digitalWrite(ledPin, HIGH);  
    if (pirState == LOW) {
      lcd.setCursor(2, 1);
      lcd.println("Terdeteksi!");
      pirState = HIGH;
    }
  } 
  else {
    digitalWrite(ledPin, LOW); 
    if (pirState == HIGH) {
      lcd.setCursor(2, 1);
      lcd.println("Tidak ada");
      pirState = LOW;
    }
  }
}