#include <SPI.h>                 // For ESP32
#include <MFRC522.h>             // For RFID
#include <ESP32Servo.h>          // For the Servo
#include <LiquidCrystal_I2C.h>   // For display (LCD)

#define SS_PIN 5      // MFRC522 SDA
#define RST_PIN 4     // MFRC522 RST
#define SERVO_PIN 2   // Servo PWM pin

MFRC522 rfid(SS_PIN, RST_PIN);
Servo gate;
LiquidCrystal_I2C lcd(0x27, 16, 2);

String authorizedUIDs[] = {
  "c0ffee99",
  "aabbccdd",
  "01020304"
};

int numCards = sizeof(authorizedUIDs) / sizeof(authorizedUIDs[0]);

void setup() {
  Serial.begin(115200);

  SPI.begin();
  rfid.PCD_Init();

  gate.attach(SERVO_PIN);
  gate.write(0);
}