Categories

RFID / NFC

NFC (Near Field Communication)

NFC is a short-range wireless communication technology that allows data exchange between devices in very close proximity (up to 10 cm). It operates at a frequency of 13.56 MHz and is an extension of RFID technology.

Characteristics of NFC:

  • Bidirectional communication – allows for both sending and receiving data between two devices.
  • Short range – devices must be close to each other.
  • Security – the short range reduces the risk of data interception.
  • Power supply – can work passively (e.g., NFC stickers powered by the reader).

Applications of NFC:

  • Contactless payments – e.g., Google Pay, Apple Pay.
  • Electronic tickets – public transportation, mass events.
  • Device pairing – quick connection of devices (e.g., Bluetooth speakers).
  • User identification – access cards and ID badges.
  • Automation – programming smartphones using NFC tags.

RFID (Radio Frequency Identification)

RFID is a technology that uses radio waves to identify objects or individuals through special RFID tags and readers. RFID can operate at various distances – from a few centimeters to several meters, depending on the frequency and type of tag.

Characteristics of RFID:

  • Unidirectional communication – the reader retrieves data stored on the RFID tag.
  • Varied ranges – from a few centimeters (LF and HF tags) to several meters (UHF tags).
  • Active and passive tags – active tags have their own power source, while passive tags are powered by the reader.

Applications of RFID:

  • Logistics and warehousing – tracking goods and managing inventory.
  • Animal identification – RFID chips implanted in animals.
  • Access control – RFID cards used in entry control systems.
  • Production management – monitoring production processes.
  • Payment systems – e.g., toll systems (viaTOLL).