Radio Frequency Identification, or RFID, is a widely used technology developed for storing and retriving information in radio frequency-enabled devices. Most often, RFID systems consist of one or multiple RF tags, an RF reader, and a database. In this tutorial series, passive, high frequency (13.56 MHz) RFID tags are the focus, as they are very compact, inexpensive, and require no external battery power. Using an Arduino board, a common RFID reader (MFRC522), and a few RFID tags/cards, we will be exploring methods for reading and writing RFID information in an attempt to understand the how RFID communication works and the limits of the technology.

Arduino, Electronics, ProgrammingJoshua HriskoJune 27, 2021RFID, MFRC522, RFID Tags, Radio Frequency Identification, 13.56 MHz, SPI, Arduino SPI, Arduino RFID, MIFARE, PICC, UID, Sector, Block Comments