Features: RC522 chip Introduction: 1.RC522 is applied to the highly integrated read and write 13.56MHz contact-less communication card chip, a low-voltage, low-cost, small size of the non-contact card chip to read and write, smart meters and portable handheld devices developed better choice. 2.The RC522 use of advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contact-less communication methods and protocols. 3.14443A compatible transponder signals, the digital part of to handle the ISO14443A frames and error detection. 4.In addition, support rapid CRYPTO1 encryption algorithm, terminology validation products. 5.RC522 support series of high-speed non-contact communication, two-way data transmission rate up to 424kbit/s. It adopts Serial Peripheral Interface mode to communicate with hosts, which is beneficial to reduce wiring, reduce PCB board volume and reduce cost. RFID module Introduction: 1.MF522-AN module adopts MFRC522 original reader circuit chip design, easy to use, low cost 2.Suitable for equipment development, development of advanced applications such reader users, the need for RF card terminal design / production of the user. 3.This module can be loaded directly into a variety of readers molds. 4.Module uses voltage of 3.3V, through the Serial Peripheral Interface simple few lines can be directly connected to the user any CPU board communication module can guarantee stable and reliable work, reader distance Specification: Current :13-26mA / DC 3.3V Idle Current :10-13mA / DC 3.3V Sleep current:<80uA Peak current:<30mA Operating Frequency: 13.56MHz Supported card types: for S50, for S70, for UltraLight, for Pro, for Desfire Environmental Operating temperature: -20-80 degrees Celsius Environment Storage temperature: -40-85 degrees Celsius Relative Humidity: 5% -95% Module Interface: Serial Peripheral Interface Parameters Data Transfer Rate: Max. 10Mbit / s Module Size: 6*3.8cm/2.4*1.5in Blank card size: 8.6*5.3cm/3.4*2.1in Weight: Approx.39g/1.4oz Package Included: 2 x RFID-RC522 module 2 x S50 blank card 2 x S50 key card 2 x straight pins 2 x bent pins 1、RC522 is applied to the highly integrated read and write 13.56MHz contact-less communication card chip 2、RC522 is a low-voltage, low-cost, small size of the non-contact card chip to read and write, smart meters and portable handheld devices developed better choice. 3、The RC522 use of advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contact-less communication methods and protocols. 4、14443A compatible transponder signals, the digital part of to handle the ISO14443A frames and error detection. 5、This module can be loaded directly into a variety of readers molds.