RFID Not Detected: Check connections between the RFID module and Arduino. Ensure correct wiring of SCK, MISO, MOSI, and SDA pins. Incorrect UID: Ensure the RFID card's UID matches the one stored in ...

RFID Module: The RFID reader scans RFID tags and checks if the scanned tag matches a predefined set of values. LED Control: If the RFID tag is recognized, the LED toggles its state (ON or OFF). If the ...

RFID enables wireless data collection by readers from electronic tags attached to or embedded in objects, for identification and other purposes. This article describes the construction of a simple ...

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 ...

– MFRC522 connection header: This is where the MFRC522 RFID reader connects to the main board. – Program select header: Currently, only header#1 is being used in the program.

The Arduino acts as the brains of the operation while an off-the-shelf NFC/RFID reader module is used to read the RFID tags. To add new keys to the system, [Jason] simply swipes his “master ...

To let its employees socialize from 300 miles away, ad agency Allen & Gerritsen hacked together an interactive game using RFID sensors, an Arduino, and some custom in-house development. Now ...