This kit is designed for Arduino and other micro controller platforms, and it communicates via SPI.
The NXP RC522 is a 13.56MHz integrated chip card reader. It is using an advanced modulation and demodulation concept, integrating all types of 13.56MHz passive contactless communication methods and protocols. It supports 14443A compatible transponder signals (ISO14443A framing and error detection). It also supports CRYPTO1 encryption algorithms for MIFARE products, wireless two-way data transfer rates up to 424kbit/s, and fast SPI communication of max. 10Mbit/s.
The NXP MF522-AN adopts Philips MFRC522 original reader circuit chip design; easy to use, low cost, suitable for equipment development. NXP RC522 is a 3.3V device, please make sure to use voltage devider in case you will connect it to a circuit with higher (e.g. 5V) logic level.
Operating Current: 13-26mA @ 3.3V
Idle Current: 10-13mA @ 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating Frequency: 13.56MHz
Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire
Dimensions: 40mm 60mm
Operating temperature: -20 to +80 degrees Celsius
Relative Humidity: 5% to 95%
You will find everything you need to start for example with an Arduino controller on websites like arduino.cc or instructables.com