what is nfc

NFC is a short-range wireless communication technology that allows devices to exchange information between each other. Based on the principle of near-field induction, it enables two devices to conduct high-speed two-way communication within a few centimeters, simplifying Many daily operations and provide a more convenient and safer user experience.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

NFC (Near Field Communication) is a short-range wireless communication technology that allows devices to exchange information between each other. It is based on the principle of near-field sensing, which enables high-speed two-way communication between two devices within a few centimeters of distance.

NFC technology is widely used in many fields, including mobile payments, smart door locks, public transportation card swiping, smart tags, etc. It enables users to exchange data quickly, securely and conveniently via mobile devices such as smartphones.

NFC technology is similar to traditional RFID (Radio Frequency Identification) technology, but there are some important differences. First, NFC has a shorter communication distance than RFID, which helps improve the security of interactions. Secondly, NFC supports two-way communication and can transmit data between two devices, while RFID can only read data in one direction. Finally, NFC can be integrated with mobile devices such as smartphones to provide users with more functions and convenience.

NFC uses a specific wireless frequency (13.56 MHz) to communicate and supports three modes: reader/writer mode, point-to-point mode and card emulation mode. In reader/writer mode, NFC devices can read information stored on smart tags or tags, such as product details, URL links, etc. Point-to-point mode enables two NFC devices to directly exchange data, such as transferring files, sharing contact information, etc. The card simulation mode allows NFC devices to simulate smart cards and realize functions such as near-field payment and access control cards.

Overall, NFC technology has become a very important communication method in the era of intelligent interconnection. It simplifies many daily operations and provides a more convenient and safer user experience.

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