Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information. Some tags are powered by electromagnetic induction from magnetic fields produced near the reader. Some types collect energy from the interrogating radio waves and act as a passive transponder. Other types have a local power source such as a battery and may operate at hundreds of meters from the reader. Unlike a barcode, the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object. Radio frequency identification (RFID) is one method for Automatic Identification and Data Capture (AIDC).

RFID tags are used in many industries. An RFID tag attached to an automobile during production can be used to track its progress through the assembly line. Pharmaceuticals can be tracked through warehouses. Livestock and pets may have tags injected, allowing positive identification of the animal.

Since RFID tags can be attached to cash, clothing, possessions, or even implanted within people, the possibility of reading personally-linked information without consent has raised serious privacy concerns.

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Arduino PN532 NFC Module
Overview ITEAD PN532 NFC module, as its name implies, is based on PN532 chip and used for 13.56MH..
Ex Tax: 575.00LE
MD9291 Ultra-low-power RFID reader module | UART (TTL) serial communication | 13.56MHz
Features ● High-speed MCU. ● module is small, the size of 43mm × 35mm × 3mm. ● 3.3V-5.5V op..
Ex Tax: 80.00LE
OverView RDM6300 125KHz cardreader mini-module is designed for reading code from 125KHz card comp..
Ex Tax: 95.00LE
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