Chip - Rfid

A tiny piece of silicon that stores and processes information, such as a unique serial number or biometric data.

These have no battery. They "wake up" only when they enter the radio field of an RFID reader, drawing just enough power from the reader's signal to send back their information. They are incredibly cheap (often costing less than $0.10) and are used for retail items, library books, and event wristbands. rfid chip

The base material, like paper or plastic, that holds the chip and antenna together. Active vs. Passive: How They Power Up A tiny piece of silicon that stores and