NFC
NFC (Near Field Communication) is a short-range wireless communication technology that enables data exchange between devices over distances of up to 4 cm. It operates at 13.56 MHz and is commonly used for contactless payments, access control, and data sharing between smartphones and other devices. NFC builds on RFID technology but allows for two-way communication, making it ideal for secure, low-power applications.
Developers should learn NFC when building applications for mobile payments, smart access systems, or IoT devices that require secure, proximity-based interactions. It's essential for implementing features like tap-to-pay, electronic ticketing, and device pairing in Android and iOS apps, as it provides a simple and standardized way to enable contactless transactions and data transfer.