Near-field communication - Wikipedia
2 days agou2002·u2002Near-field communication (NFC) is a set of communication protocols for communication between two electronic devices over a distance of 4 cm (1 1 ⁄ 2 in) or less. NFC offers a low-speed connection with simple setup that can be used to bootstrap more-capable wireless connections.. NFC devices can act as electronic identity documents and keycards. They are used in contactless payment …
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