2 RFID reader on one Raspberry Pi
using 2 RFID reader libraries:
1. Adafruit_Python_PN532-master
https://github.com/adafruit/Adafruit_..., by Tony DiCola, PN532-Raspberry Pi Python library
2. MFRC522-python-master
https://github.com/rasplay/MFRC522-py... MFRC522 RFID Card Reader Python Library
API for Wechat connection
https://github.com/littlecodersh/ItChat