Arduino RFID RC522 Module Pinout and Pin Configuration. The RC522 module has a total of 8 pins. This module supports various communication protocols, and each pin has a different function for each ...

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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 ...

RDM6300 RFID Reader Module Pinout. Pin Name. Pin Description. 5V. Power Supply Pin. GND. Ground. RX. Data Receive pin. TX. Data Transmit pin. ... have the same operating frequency i.e. 125 KHz and ...

The proposed system consists of a radio frequency reader (RC522), a set passive tags (identification cards), microcontroller Arduino MEGA, and graphical user interface (GUI) implemented in Matlab ®.