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Near-Field Communication (NFC)
This article is under construction.
Summary
See also: Radio Frequency Identification (RFID)
Introduction
Near-field communication (NFC) allows two devices to communicate within 4cm using short-range radio on the 13.56MHz band. NFC shares some of its technology stack with Radio Frequency Identification (RFID), though it is a newer technology with more features, most notably the ability to write as well as read data.
NFC is specified in a number of ISO standards, including ISO/IEC 14443A, ISO/IEC 1443 B and FeliCa, and ISO/IEC 18092.
While RFID is a read-only technology, NFC allows for two-way communication between the NFC “tag” being read and the NFC reader. Common uses include contactless payment, smart cards, door access fobs, attendance tracking, and more.