This comprehensive Arduino RFID tutorial teaches you how to interface RFID (Radio Frequency Identification) technology with Arduino microcontrollers using the popular RC522 RFID module.Arduino RFID ...

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 ...

You need to connect MISO outputs through the OR logic gate to Arduino. It is possible to use logic OR IC chip or just simple diodes+resistor OR element. Connect anodes of diodes to MISO reader outputs ...

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 ...

RFID reader connection RC522 with Arduino UNO The communication between Arduino and the RFID reader RC522 is quite complex at the programming level. Fortunately, we have ready-to-use Arduino tools ...

RFID Attendance System Circuit Diagram. Below you can see the circuit diagram used in the RFID-based attendance system project. If you are completely new to using RFID, you can check out this tutorial ...

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.

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. This ...