Build custom security setups, contactless biometric check-ins, and smart tracking systems with the RC522 RFID Module Kit. Powered by the highly reliable NXP MFRC522 transceiver chip, this board operates over a high-frequency 13.56 MHz electromagnetic field to safely read and write data to passive tags. Communicating over a streamlined SPI protocol, it plugs easily into microcontrollers without cluttering your wiring. It is the ultimate choice for smart door locks, automated parking barriers, inventory scanning, and interactive museum exhibits.Â
Key Product Features
- Complete Prototyping Kit: Ships with both a standard plastic card format and a rugged blue key fob tag, allowing you to build and test multiple form factors out of the box.Â
- Secure Crypto1 Encryption: Natively supports high-speed Crypto1 encryption algorithms to safely validate keys and prevent data spoofing on commercial tag networks.Â
- Bypass Loose Connections: Uses the standard Serial Peripheral Interface (SPI) bus loop to minimize required connection paths and save valuable board footprint space.Â
- Universal Platform Compatibility: Supported by a massive open-source library array, allowing plug-and-play code compilation across Arduino, ESP32, Raspberry Pi, and Pico.Â
- Efficient Standby Sumping: Integrated power management circuits draw under 13mA during passive operations and drop down to 80µA in deep sleep, making it ideal for battery-operated locks

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