Após realizar todas as etapas de configuração e instalação com sucesso, a próxima etapa, a execução da aplicação Read.py retorna as seguintes mensagens:
pi@raspberrypi:~/MFRC522-python3 $ python3 Read.py /home/pi/MFRC522-python3/MFRC522.py:134: RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings. GPIO.setup(self.NRSTPD, GPIO.OUT) Traceback (most recent call last): File "Read.py", line 41, in MIFAREReader = MFRC522.MFRC522() File "/home/pi/MFRC522-python3/MFRC522.py", line 136, in init self.MFRC522_Init() File "/home/pi/MFRC522-python3/MFRC522.py", line 406, in MFRC522_Init self.MFRC522_Reset(); File "/home/pi/MFRC522-python3/MFRC522.py", line 139, in MFRC522_Reset self.Write_MFRC522(self.CommandReg, self.PCD_RESETPHASE) File "/home/pi/MFRC522-python3/MFRC522.py", line 142, in Write_MFRC522 spi.transfer(((addr << 1) & 0x7E, val)) TypeError: function takes exactly 2 arguments (1 given)