#include <LiquidCrystal.h>
#include <ESP32Servo.h>

LiquidCrystal lcd(23, 22, 21, 19, 18, 5);
Servo servo; 

void setup() 
{
  lcd.begin(16, 2);
  pinMode(13, INPUT);
  Serial.begin(9600);
  servo.attach(15);  
  lcd.print("HEAD COUNT: ");
}

void loop() {
  int x;
  while(x != 16)
  {
    int pir = digitalRead(13);
    if(pir != 0)
    {
      
      servo.write(180);
      x++;
      lcd.setCursor(12, 0);
      lcd.print(x);
      delay(6000);
    }
    else
    {
      servo.write(0);
    }
    Serial.println(pir);
  }

  lcd.clear();
  lcd.print("ROOM IS FULL");
  delay(5000);
}