MFRC522 RFID reader/writer for the NodeMCU
RC522 RFID Reader for NodeMCU LUA By Ben Jackson
This is a port of: https://github.com/ondryaso/pi-rc522 -> Python https://github.com/ljos/MFRC522 -> Arduino
To be used with MFRC522 RFID reader and s50 tag (but can work with other tags) with the NodeMCU devkit V1