Arduino library for MFRC522 and other RFID RC522 based modules. Read and write different types of Radio-Frequency IDentification (RFID) cards on your Arduino using a RC522 based reader connected via ...

Why Choose Arduino for RFID Attendance Systems? This RFID-based attendance system using an Arduino project, offers superior reliability compared to commercial solutions. The Arduino platform provides ...

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I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

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.

The MFRC522 requires a regulated 3.3v power supply, which is provided on the board, so that you don’t have to worry about it! – MFRC522 connection header: This is where the MFRC522 RFID reader ...