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mxgxw / MFRC522-python

A small class to interface with the NFC reader Module MFRC522
GNU Lesser General Public License v3.0
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Error when running the python Code to read RFID tag #82

Open priyesh1112 opened 5 years ago

priyesh1112 commented 5 years ago

Welcome to the MFRC522 data read example Press Ctrl-C to stop. Traceback (most recent call last): File "Read.py", line 51, in (status, TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL) File "/home/pi/MFRC522.py", line 243, in MFRC522_Request (status, backData, backBits) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, TagType) TypeError: 'NoneType' object is not iterable

Could anyone please help in this matter? I am finding it troublesome and so would be glad if someone could sort this issue.

Thanks and Regards

aleexolsson commented 3 years ago

Hi! I suppose the problem is that the code doesn't want to read a card at all, I think I have a solution for that:

git clone https://github.com/pimylifeup/MFRC522-python.git

cd MFRC522-python

sudo python3 setup.py install

then go back a directory, create a new one, and in there, create a file, for example Read.py, and in it, paste this code:

`from time import sleep import sys from mfrc522 import SimpleMFRC522 reader = SimpleMFRC522()

try: while True: print("Hold a card or tag near the reader") id, text = reader.read() print("ID: %s\nText: %s" % (id, text)) sleep(3) except KeyboardInterrupt: GPIO.cleanup() raise` This should work.