#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 25, 4);

int i;
int pirstate = false;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(2, INPUT); //pin PIR
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Simulasi Sensor PIR");
  lcd.setCursor(0, 1);
  lcd.print("Initializing...");
  delay(1500);
  lcd.clear();
}

void loop() {
  // put your main code here, to run repeatedly:
  int nilaiPIR = digitalRead(2);
  if(nilaiPIR == LOW){
    if(pirstate == false){
      for(i=10; i>=1; i--){
        Serial.println(i);
        lcd.setCursor(0,0); lcd.print("Tidak Terdeteksi");
        int p=1;
        lcd.setCursor(0,1); lcd.print(i);
        delay(500);
        lcd.print("");
      }
      Serial.println("MobComm");
      lcd.setCursor(0,1); lcd.print("MobComm");
      pirstate = true;
    }
  } 
  else{
    if(pirstate == true){
      for(i=1; i<=10; i++){
        Serial.println(i);
        delay(500);
      }
      Serial.println("Oprec");
      pirstate = false;
    }
  }
  delay(1000); // this speeds up the simulation
}