RFID drawer lock

/* 

 * Baby Boilers for TLI -31300 Final Project 
 *
 * RST_PIN AND SS_PIN Are different for varying boards. Check your pin out 
*/

#include <Wire.h>

#include <EEPROM.h>     // We are going to read and write PICC's UIDs from/to EEPROM

#include <MFRC522.h>  // Library for Mifare RC522 Devices



#define RST_PIN         49          // Configurable, see typical pin layout above
#define SS_PIN          53         // Configurable, see typical pin layout above
#define eleMag         7

MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance.

//Define the character strings for various RFID tags that are allowed 
char caseyTagID[] =  "99 FD E4 2A";  




void setup() {
  SPI.begin();      // Initiate  SPI bus
  mfrc522.PCD_Init();   // Initiate MFRC522

 pinMode(eleMag, OUTPUT);
 digitalWrite(eleMag,LOW);
}

void loop() {
  
  

 // Look for new cards
  while ( ! mfrc522.PICC_IsNewCardPresent()) 
  {
  digitalWrite(eleMag,LOW);
  }
  // Select one of the cards
  
  if ( ! mfrc522.PICC_ReadCardSerial()) 
  {
    return;
  }
 
  String content= "";
  byte letter;
  for (byte i = 0; i < mfrc522.uid.size; i++) 
  {
     
     content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
     content.concat(String(mfrc522.uid.uidByte[i], HEX));
  }
  
  content.toUpperCase();
 

  if (content.substring(1) == "99 FD E4 2A") //change here the UID of the card/cards that you want to give access  99 FD E4 2A
  

  {
    
    digitalWrite(eleMag,HIGH);
   
    
    delay(5000);
    digitalWrite(eleMag,LOW);
   
  }
 
 



}