NFC-fähiges Smartphone als rfid-chip nutzen?

#!/usr/bin/env python
# -*- coding: utf8 -*-

import RPi.GPIO as GPIO
import MFRC522
import signal
import time
import os

continue_reading = True

def end_read(signal,frame):
    global continue_reading
    print "Ctrl+C captured, ending read."
    continue_reading = False
    GPIO.cleanup()

signal.signal(signal.SIGINT, end_read)

MIFAREReader = MFRC522.MFRC522()

code = [66, 101, 110]
while continue_reading:
    
    (status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)

    if status == MIFAREReader.MI_OK:
        print "Card detected"

    (status,uid) = MIFAREReader.MFRC522_Anticoll()

    if status == MIFAREReader.MI_OK:

        
        print "Card read UID: "+str(uid[0])+","+str(uid[1])+","+str(uid[2])+","+str(uid[3])
    
        
        key = [0xFF,0xFF,0xFF,0xFF,0xFF,0xFF]
        
     
        MIFAREReader.MFRC522_SelectTag(uid)

 
        status = MIFAREReader.MFRC522_Auth(MIFAREReader.PICC_AUTHENT1A, 8, key, uid)

        # Check if authenticated
        if status == MIFAREReader.MI_OK:
            print "Es geht"
            MIFAREReader.MFRC522_StopCrypto1()
            time.sleep(2)
            
        else:
            print "Authentication error"
GPIO.cleanup()