import mfrc522
import sys
from uos import uname

def read():

  if uname()[0] == 'esp8266':
    print("ESP8266 BOARD")
    rdr = mfrc522.MFRC522(0, 2, 4, 5, 14)
  else:

    raise RuntimeError("Unsupported")

  print("")
  print("Place card")
  print("")


  while True:
    (stat, tag_type) = rdr.request(rdr.REQIDL)
    if stat == rdr.OK:

      (stat, raw_uid) = rdr.anticoll()

      if stat == rdr.OK:
        print("  - uid	 : %02x%02x%02x%02x" % (raw_uid[0], raw_uid[1], raw_uid[2], raw_uid[3]))



        if rdr.select_tag(raw_uid) == rdr.OK:


          key = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF]

          if rdr.auth(rdr.AUTHENT1A, 8, key, raw_uid) == rdr.OK:
            print("Address 8 data: %s" % rdr.read(8))
            rdr.stop_crypto1()
          else:
             print("Authentication error")
        else:
          print("Failed to select tag")


read()