#include <Servo.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
Servo servo1;
Servo servo2;
int trig = 13;
int echo = 12;
//BUATAN MANUSIA BIASA 

void setup() {
  pinMode(trig,OUTPUT);
  pinMode(echo, INPUT);
  servo1.attach(11);
  servo2.attach(10);
  lcd.begin(16,2);
  lcd.backlight();
  

}

void loop() {
  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig,LOW);
  delayMicroseconds(2);


  int sinyal=pulseIn(echo, HIGH);
  int jarak=sinyal/58;

  if(jarak<=100){
  servo1.write(90);
  servo2.write(90);
  lcd.setCursor(0,0);
  lcd.println("*BUKA PINTU*");
  lcd.setCursor(0,1);
  }

  else {
  servo1.write(0);
  servo2.write(0);
  lcd.setCursor(0,0);
  lcd.println("*TUTUP PINTU*");
  lcd.setCursor(0,1);
  }


}