micropython-mfrc522

(Micro)Python class to access the MFRC522 RFID reader

Basic class to access RFID readers of the type MFRC522. This is basically a re-write of this Python port for the MFRC522. I tried to strip things down and make them more "pythonic" so the result is small enough to run on Micropython boards. The only board I tried this so far is the ESP8266.

Usage

Put the modules mfrc522.py, examples/read.py, examples/write.py to the root of the flash FS on your board. For the ESP8266 there are multiple solutions to do that. E.g. use the WebREPL file transfer, or mpfshell.

The class expects the reader by default to be connected like this:

Signal	GPIO	Note
sck	GPIO0
mosi	GPIO2
miso	GPIO4
rst	GPIO5
cs	GPIO14	Labeled SDA on most RFID-RC522 boards

Now enter the REPL you could run one of the two exmaples:

For detecting, authenticating and reading from a card:

import read
read.do_read()

This will wait for a MifareClasskic 1k card. As soon the card is detected, it is authenticated, and 16 bytes are read from address 0x08.

For detecting, authenticating and writing to a card:

import write
write.do_write()

This will wait for a MifareClasskic 1k card. As soon the card is detected, it is authenticated, and 16 bytes written to address 0x08.