[RFID-RC522] (https://3.bp.blogspot.com/-LIRYnr98scs/WxPHATmSfdI/AAAAAAABIlA/UzwXyHHkqCQpFBX0bW4NZXvnm_ARMAEDQCPcBGAYYCw/s1600/arduino-rfid-rc522-esquema.png)",""," [!

RFID_Rasp_Arduino A code for reading RFID from Arduino via USB from Rasp. Raspberry code for read & write sqlite3. Arduino code for reading RC522 RFID. A system that reads RFID cards. The data are ...

Therefore, an effort was made to design a tool for “identification of impedance changes in metals using an Arduino Uno-based RFID RC522” which is relatively inexpensive and easy to carry.

A second Arduino is used to read NFC and RFID cards using a Mifare RC522 reader. The system uses its own credit system, so a user can be issued a card with a certain amount of pre-paid credit.