NFC tags are small, unpowered devices that store and transmit data to compatible readers through electromagnetic fields.

When [gdarchen] wanted to read some NFC tags, he went through several iterations ... But his final iteration was to make a standalone reader with an Arduino and use WebUSB to connect to the ...

RFID and NFC drive some of life’s conveniences now ... look at many different things at the same time,” Halliday says, adding that RAIN readers can detect 1,000 tags per second. That makes the ...

Often the term will bring to mind the ability to pay by holding your phone over a reader, but the system can also use NFC tags embedded in credit cards, ID card, passports, and the like.