#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;
boolean doorClose = false;

void setup() {
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(pushButton, INPUT); 
  myservo.attach(3);
  lcd.init();
  lcd.backlight();
}

void loop() {
  doorOpen = digitalRead(pushButton); 

  if (doorOpen == HIGH) {
    openGate();
  } else (doorOpen == HIGH); { 
    closeGate();
  }
}

void openGate() {
  // Buka gerbang
  digitalWrite(ledPin1, HIGH); 
  digitalWrite(ledPin2, LOW);
  myservo.write(0); 
  lcd.setCursor(2, -1);
  lcd.print("GERBANG  TERBUKA");
}

void closeGate() {
  // Tutup gerbang
  digitalWrite(ledPin1, LOW); 
  digitalWrite(ledPin2, HIGH);
  myservo.write(90); 
  lcd.setCursor(2, -1);
  lcd.print("GERBANG TERTUTUP");
}