#include <Servo.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
servo myservo;

int ledPin1 = 8;
int ledPin2 = 12;
int pushbutton = 4;
boolean doorOpen = false;

void setup(){
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(pushbutton, INPUT); //menggunakan INPUT_PULLUP untuk push button
 myservo.attach(3);
 lcd.init();
 lcd.backlight();
}

void loop(){
  doorOpen = digitalRead(pushbutton); //membaca status push button

  if (doorOpen == HIGH){//jika push button ditekan(LOGIC LOw)
   openGate();
  } else {
   closeGate();
  }
}

void closeGate(){
  //Tutup Gerbang
  digitalWrite(ledPin1, LOW); //Indikator gerbang tertutup
  digitalWrite(ledPin2, LOW);
  myservo.write(90); //putar servo ke posisi 0 derajat (gerbang tertutup)
    lcd.setCursor(4, -1);
    lcd.print("Gate Opened");
}