I have same problem. Code operate well for 6 hour. but message show below piBoardRev: Unable to determine board revision from /proc/cpuinfo -> Unable to open /proc/cpuinfo -> You may want to check: -> http://www.raspberrypi.org/phpBB3/viewtopic.php?p=184410#p184410 my board info ----- pi@raspberryp...

I have same problem. Code operate well for 6 hour. but message show below piBoardRev: Unable to determine board revision from /proc/cpuinfo -> Unable to open /proc/cpuinfo -> You may want to check: -> http://www.raspberrypi.org/phpBB3/viewtopic.php?p=184410#p184410 my board info ----- pi@raspberrypi...

I got it. python file : MFRC522.py 110 line def __init__(self, dev='/dev/spidev0.0', spd=1000000): -->>>> def __init__(self, dev='/dev/spidev0.1', spd=1000000): change ~~ very well !! bye... serNum = [] def __init__(self, dev='/dev/spidev0.1', spd=1000000): spi.openSPI(device=dev,speed=spd) GPIO.set...

I have the same problem. so I find clue... http://www.raspberrypi.org/forums/viewtopic.php?f=91&t=70756 Hi, assuncao wrote: could you give me an example how to connect two RFID readers using SPI interface, please? I found it: http://geraintw.blogspot.com.br/2014/01/rfid-and-raspberry-pi.html. I just...