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


#define buttonPin 4   
#define servoPin  3    
#define buzzerPin 5 

Servo myServo;               
LiquidCrystal_I2C lcd(0x27, 16, 2);  

int parkiranTersisa = 10;    

void setup() {
  
  pinMode(buttonPin, INPUT_PULLUP); 
  myServo.attach(servoPin);
  lcd.begin(16, 2);
  lcd.print("Parkiran: " + String(parkiranTersisa));
}

void loop() {
 
  if (digitalRead(buttonPin) == LOW && parkiranTersisa > 0) {
    bukaPintu();
    updateParkiran();
  }
}

void bukaPintu() {  
  myServo.write(0);   
  delay(1000);
  myServo.write(90);
}

void updateParkiran() {
  parkiranTersisa--;  
  
  lcd.clear(); 
  lcd.print("Parkiran: " + String(parkiranTersisa));
  
  
  if (parkiranTersisa == 0) {
    bunyiBuzzer();
    
  }
}

void bunyiBuzzer() {
  myServo.write(90);
  tone(buzzerPin, 500);  
  delay(2000);           
  noTone(buzzerPin);      
  delay(2000);           
  while (true) {}
}