Ventisonic MFRC-522 RC522 RFID Radiofrequency IC Card Inducing Sensor Reader for Arduino Ventisonic MF RC522 is applied to the highly integrated read and write 13.56MHz contactless communication card chip. 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 The MF RC522 use of advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contactless communication methods and protocols 14443A compatible transponder signals The digital part of to handle the ISO14443A frames and error detection. Support rapid CRYPTO1 encryption algorithm, terminology validation MIFARE products MFRC522 support MIFARE series of high-speed non-contact communication, two-way data transmission rate up to 424kbit/s. MF RC522 are similar to MF RC500 MF RC530 , but also have the characteristics and differences. Communication between it and the host SPI mode helps to reduce the connection narrow PCB board volume, reduce costs Package included: 1 x A RFID-RC522 Module ; 1 x The Standard S50 Blank Card ; 1 x S50 special-shaped card (as shown by the key ring shape) ; 1 x straight Pin;1 x Curved Pin