arduino_skylanders_roborio_code.ino

/*
 * 
 * All the resources for this project: http://randomnerdtutorials.com/
 * Modified by Rui Santos
 * 
 * Created by FILIPEFLOP
 * 
 */
 
#include <SPI.h>
#include <MFRC522.h>
 
#define SS_PIN 10
#define RST_PIN 9
MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance.
 const int ledPin = 7; // pin the LED is attached to
int incomingByte;      // variable stores  serial data
void setup() 
{
  Serial.begin(9600);   // Initiate a serial communication
  SPI.begin();      // Initiate  SPI bus
  mfrc522.PCD_Init();   // Initiate MFRC522
  //Serial.println("Approximate your card to the reader...");
  //Serial.println();
 pinMode(ledPin, OUTPUT);
}
void loop() 
{
     // see if there's incoming serial data:
  if (Serial.available() > 0) {
    // read the oldest byte in the serial buffer:
    incomingByte = Serial.read();
    // if it's a capital H (ASCII 72), turn on the LED:
    if (incomingByte == 'H') {
      digitalWrite(ledPin, HIGH);
    }
    // if it's an L (ASCII 76) turn off the LED:
    if (incomingByte == 'L') {
      digitalWrite(ledPin, LOW);
    }
  }
  // Look for new cards
  
  if ( ! mfrc522.PICC_IsNewCardPresent()) 
  {
 digitalWrite(ledPin, HIGH);
    return;
  }
  // Select one of the cards
  if ( ! mfrc522.PICC_ReadCardSerial()) 
  {
    
    return;
  }
  else{
    digitalWrite(ledPin, LOW);
  }
  //Show UID on serial monitor
  String content= "";
  byte letter;
  for (byte i = 0; i < mfrc522.uid.size; i++) 
  {
     //Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? "0" : "");
     //Serial.print(mfrc522.uid.uidByte[i], HEX);
     content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? "0" : ""));
     content.concat(String(mfrc522.uid.uidByte[i], HEX));
  }
 // Serial.println();
  content.toUpperCase();
  
 Serial.println(content);
 
 
  delay(2000);
  /*
  if (content.substring(1) == "BD 31 15 2B") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    delay(3000);
  }
 
 else   {
    Serial.println(" Access denied");
    delay(3000);
  }
  */
}