//including libraries
#include <LiquidCrystal_I2C.h> //LCD library
#include <NewPing.h> //ultrasonic sensor library
#include <Servo.h> //servo library

LiquidCrystal_I2C lcd(0x27,16,2); //defining LCD name and 
NewPing ULTRASONIK(13,12,100); //defining sensor name 
Servo PintuHati; //defining servo name

int jarak; //declaring variable by using integer

void setup() {
  //declaring pin status
  //adjusting lcd
  lcd.init();
  lcd.backlight();

  //adjusting servo pin
  PintuHati.attach(5);
}

void loop() {
//repeated program
jarak = ULTRASONIK.ping_cm(); //calling variable that has been declared above
lcd.setCursor(0,0); //setting lcd cursor at 0, 0
lcd.print(jarak); //printing the value of variable

//lcd.clear();
//delay(100);

if(jarak < 10){ //if sensor detects an object below 10
  PintuHati.write(0); //servo moves 0 degree
  lcd.setCursor(0,0); //setting lcd cursor 0, 0
  lcd.print("Silakan Masuk"); //lcd shows "Silahkan Masuk"
  delay(500); //delaying program for 500ms
}
  /*lcd.setCursor(0,0);
  lcd.print("Silakan Masuk");
  delay(1000);*/


if(jarak > 10) { //if sensor detects an object above 10
  PintuHati.write(90); //servo moves 90 degrees
  lcd.setCursor(0,0); //setting lcd cursor 0, 0
  lcd.print("Tempelkan Kartu"); //lcd shows "Tempelkan Kartu"
  delay(500); //delaying program for 500ms
}
/*lcd.setCursor(0,0);
lcd.print("Tempelkan Kartu");
delay(500);*/

 }


  /*lcd.setCursor(16,0);
  lcd.print("lo");
  delay(100);
  lcd.clear();

  lcd.setCursor(0,1);
  lcd.print("cinta");
  delay(100);
  lcd.clear();*/