Near Field Communication or NFC is a set of communication protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish communication by bringing them into close proximity of each other. The communication distance for NFC devices is typically 4 cm or less. NFC operates at 13.56 MHz on ISO/IEC 18092 and FeliCa contactless smartcard standards at data rates ranging from 106 kbit/s to 424 kbit/s.

How NFC works?

Near Field Communication uses electromagnetic radio fields to enable communication between devices when they are brought close together. It has a maximum range of about 4 cm. One device in the NFC transaction would initiate the communication and is known as an initiator, while the other responds to requests and is called the target. Both devices would contain NFC chips to enable the wireless exchange of data.

For instance, a user can make NFC payments by tapping their phone against a payment terminal, or share contact details between phones by tapping them together. The electromagnetic field produced by the active device powers up the passive device and also transfers data between them. Basic data supported include text, URLs, and images. The transactions are very fast to allow for smooth user experience.

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