What is NFC technology and how do we use it?

It is a technology for wireless transmission of data over a distance. It operates on a chip with an inductor that creates a radio frequency field and interacts with another such field in a planned scenario. NFC can work in two modes: active and passive. In the active state, the chip broadcasts information for the connected device, and in the passive state it acts as a reader.

What are the advantages of the technology and why in some cases they use it instead of Bluetooth?

• NFC works at the time of data transmission and uses short radio waves, thereby spending little energy
• High data transfer rate of a small size
• The ability to quickly connect to another device, without searching for a contact.
• NFC technology is safer than Bluetooth because an attacker needs to be very close to the device to be able to connect

Now NFC is used to quickly pay for goods, transfer files, to output sound to a speaker or video to a TV, as an electronic key, and also for personal identification.

Recently, NFC tags are increasingly being used, for which you can develop your own scenario using a mobile application. Tags can be placed near your workplace or next to your bed to turn off the sound with one touch, set an alarm for the required time, or connect to Wi-fi.

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