#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

int ledPin = 15;    // Deklarasi variabel i
int inputPin  = 14; // Deklarasi variabel
int pirState = LOW; // Pada saat memulai, 5
int val = 0;  // Deklarasi variabel u

void setup(){
  pinMode(ledPin, OUTPUT);  // Deklarasi LED sebagai
  pinMode(inputPin, INPUT);

  LCD.init();
  LCD.backlight();
  LCD.setCursor(1,1);
  LCD.print(" KELAS SCB ");
  delay(500);

  LCD.clear();
  LCD.setCursor(1,0);
  LCD.print(" MULAI ");
  delay(700);
  LCD.clear();
}
void loop() {
  val = digitalRead(inputPin);
  if (val == LOW) {
    digitalWrite(ledPin, LOW);
    if (pirState == LOW) {
      LCD.init();
      LCD.backlight();
      LCD.setCursor(0,0);
      LCD.print("TIDAK TERDETEKSI");
      LCD.setCursor(0,1);
      LCD.print(" GERAKAN ");

      pirState = HIGH;
    }
  } else {
    digitalWrite(ledPin, HIGH);
    if (pirState == HIGH) {
      LCD.init();
      LCD.init();
      LCD.backlight();
      LCD.setCursor(0,0);
      LCD.print(" TERDETEKSI ");
      LCD.setCursor(0,1);
      LCD.print(" GERAKAN ");
      pirState = LOW;
    }
  }
}