RFID Card

The RFID Card is a contactless identification card that uses Radio Frequency Identification (RFID) technology to store and transmit data wirelessly. It operates at a frequency of 13.56 MHz and is designed to work with RFID readers such as the RC522 RFID Module and other compatible devices.

Each RFID card contains an embedded RFID chip and antenna that allow it to communicate with an RFID reader when brought within range. The reader detects the card and retrieves its unique identification number (UID), which can be used for authentication, access control, and tracking purposes.

RFID cards are widely used in access control systems, employee ID systems, student attendance systems, hotel key cards, parking management, and security systems. They enable fast, reliable, and contactless data exchange, making them ideal for modern automation and IoT applications.

These cards are lightweight, durable, and easy to carry, making them suitable for both commercial and DIY electronics projects involving RFID technology.