#include <LiquidCrystal_I2C.h>

// Inisialisasi objek LCD dengan alamat I2C 0x27, 16 kolom, 2 baris
LiquidCrystal_I2C lcd(0x27, 16, 2);

// LED Biru (Hitam GND.1/ Biru GP4)
// LED kuning (Hitam GND.3/ Kuning GP9)
// PIR Censor (Hitam GND.6/ Merah 3V3/ Hijau GP20)
int Pir = 20;
int statusPir = 0;
int ledYellow = 9;
int ledBlue = 4;

void setup() {
  // put your setup code here, to run once:
  Serial1.begin(115200);
  Serial1.println("Sistem pendeteksi gerak");
  pinMode(Pir, INPUT);
  pinMode(ledBlue, OUTPUT);
  pinMode(ledYellow, OUTPUT);

  // inisialisasi LCD
  lcd.init();
  lcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:
  statusPir = digitalRead(Pir);
  
  if(statusPir == HIGH){
    digitalWrite(ledBlue, HIGH);
    digitalWrite(ledYellow, LOW);
    Serial1.println("Ada gerakan");
    lcd.clear(); // membersihkan layar LCD
    lcd.setCursor(0, 0); // mengatur kursor pada baris 0, kolom 0
    lcd.print("Ada gerakan");
  }else{
    digitalWrite(ledBlue, LOW);
    digitalWrite(ledYellow, HIGH);
    Serial1.println("Tidak ada gerakan");
    lcd.clear(); // membersihkan layar LCD
    lcd.setCursor(0, 0); // mengatur kursor pada baris 0, kolom 0
    lcd.print("Tidak ada gerakan");
  }
  
  delay(1000); // this speeds up the simulation
}