Error when trying to run read.py
Opened this issue · 11 comments
File "Read.py", line 41, in MIFAREReader = MFRC522.MFRC522() File "/home/pi/MFRC522-python/MFRC522.py", line 135, in init self.MFRC522_Init() File "/home/pi/MFRC522-python/MFRC522.py", line 406, in MFRC522_Init self.MFRC522_Reset(); File "/home/pi/MFRC522-python/MFRC522.py", line 138, in MFRC522_Reset self.Write_MFRC522(self.CommandReg, self.PCD_RESETPHASE) File "/home/pi/MFRC522-python/MFRC522.py", line 141, in Write_MFRC522 spi.transfer(((addr<<1)&0x7E,val)) TypeError: function takes exactly 2 arguments (1 given)
Please help me to solve this problem
look here i had the same issue and this helped me solve it
btw look around before you open a question the link is the exact same problem you are facing
click here
Reverting the SPI-Py to 8cce26b resolved my issue as suggested in the following link.
Make sure to change directory to the cloned project directory before running the last line in the link above.
Hello @scimad and @lyocyhs, I've got the same problem. With some modifications on this library, I was able to run Read.py correctly.
My changes are shared in this pull request.
@lucassarcanjo Thanks a lot for your coordintation in making this post worth usable and improving the flaws in the syntax. I have followed the new directories which you have mentioned in the above comments. I am getting the below error right now. I would be glad if you could assist me,
Welcome to the MFRC522 data read example
Press Ctrl-C to stop.
Traceback (most recent call last):
File "rfidreader.py", line 51, in
(status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)
File "/home/pi/MFRC522-python/MFRC522.py", line 239, in MFRC522_Request
self.Write_MFRC522(self.BitFramingReg, 0x07)
TypeError: Write_MFRC522() takes 2 positional arguments but 3 were given
Thanks and Regards
Hello @priyesh1112 , I think I got what can be the reason of your issue.
In @lucassarcanjo 's code, MFRC522.py, line 310, a variable called "backData" was misspelled as "ackdata", I send him a review for correcting his code, until it happens, you can change the line
print("Size: ".format(ackData[0]))to
print("Size: ".format(backData[0]))It should work.
@victormagalhaess thanks a lot for your feedback. It worked fine. Now I am facing some other issues which I am trying to rectify :)
/home/pi/MFRC522.py:133: RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings.
GPIO.setup(self.NRSTPD, GPIO.OUT)
Welcome to the MFRC522 data read example
Press Ctrl-C to stop.
Traceback (most recent call last):
File "/home/pi/rfidreader.py", line 51, in
(status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)
File "/home/pi/MFRC522.py", line 242, in MFRC522_Request
(status, backData, backBits) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, TagType)
TypeError: 'NoneType' object is not iterable
Hello @priyesh1112 , can you send me your code? I'll have an raspberry available tomorrow, so if you send me I can test and try to solve your issue with a practical approach (this way I can test if any other issues spots).
Thanks @victormagalhaess that is really kind of you. I am trying to solve it but if it does not happen, I will copy the code and send it to you so that you may verify. I have also consulted @lucassarcanjo but he has not responded yet. I will let you know. Thanks and Regards
@victormagalhaess could you share your email id so that I can send you my code? Though it is exactly the same as Lucas has posted. But, I am facing different error.