An RFID-based attendance system using Arduino works by detecting RFID cards when they're brought near the MFRC522 reader. The Arduino reads the card's unique ID, checks if it contains valid ...

Each programmed card has an allocated 5v/TTL compatible output and an Indicator LED. There is a latching mode, and a momentary mode. This unit can program 6x RFID cards in less than 30 seconds!

Meet the Arduino Compatible RFID Reader Module. It can hold card data for up to five cards, takes seconds to program, and holds card data in EEPROM memory, which means that the cards are saved ...

RFID EM-18 Reader Module is interfaced with Arduino UNO . Python Windows Application is developed which connects both Serial Data and SQL Database and provide an UI. Interfacing of EM-18 MODULE with ...

By connecting multiple MFRC522 RFID readers to an Arduino Uno, she’s come up with a method of triggering a device (like an electronic door lock) only when the appropriate combination of RFID ...

[Aaron]’s build uses a smaller off-the-shelf RFID reader, but he’s still able to read RFID cards from about a foot away. [Aaron]’s build is very simple consisting of only an Arduino and SD ...