#include <SPI.h>
#include <MFRC522.h>
#include <LiquidCrystal.h>
#define SS_PIN 10
#define RST_PIN 9
MFRC522 mfrc522(SS_PIN, RST_PIN);
LiquidCrystal lcd(12, 11, 5, 4, 3, 2); // Pinos RS, E, D4, D5, D6, D7
void setup()
{
  Serial.begin(9600);
  SPI.begin();
  mfrc522.PCD_Init();
  lcd.begin(16, 2);
  lcd.print("Aproxime o RFID");
}
void loop()
{
  if (mfrc522.PICC_IsNewCardPresent() && mfrc522.PICC_ReadCardSerial())
  {
    lcd.clear();
    lcd.print("Cartao detectado!");
    delay(1000);
    lcd.clear();
    lcd.print("ID: ");
    for (byte i = 0; i < mfrc522.uid.size; ++i)
    {
      lcd.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
      lcd.print(mfrc522.uid.uidByte[i], HEX);
    }
    lcd.setCursor(0, 1);
    lcd.print("Bem-vindo!");
    delay(3000);
    lcd.clear();
    lcd.print("Aproxime o RFID");
  }
  mfrc522.PICC_HaltA();
  mfrc522.PCD_StopCrypto1();
  delay(1000);
}