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A simple Arduino sketch to read the Unique Identifier (UID) of RFID tags using the MFRC522 module. It communicates via SPI and outputs the detected UID in hexadecimal format directly to the Serial Monitor. Ideal for testing hardware connections or starting basic access control projects.
alex22022005/Arduino-MFRC522-UID-Reader
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A simple Arduino sketch to read the Unique Identifier (UID) of RFID tags using the MFRC522 module. It communicates via SPI and outputs the detected UID in hexadecimal format directly to the Serial Monitor. Ideal for testing hardware connections or starting basic access control projects.
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