Скачать или смотреть RFiD click - example

RFid click™ is an accessory board in mikroBUS™ form factor. It’s a compact and easy solution for adding RFid to your design. It features CR95HF 13.56 MHz contactless transceiver as well as trace antenna. RFid click™ communicates with the target board microcontroller via mikroBUS™ UART (TX, RX), SPI (MISO, MOSI, SCK, CS) INT, RST, PWM and AN lines. The board is designed to use 3.3V power supply only. LED diode (GREEN) indicates the presence of power supply. CR95HF IC is a RFid module with integrated transceiver for contactless applications. The board contains dedicated internal frame controller and analog front end (AFE) for RF communications.

http://www.mikroe.com/click/rfid/
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