3.3V/5V Compact RFID Reader Writer and NFC Module

Feature This RFID modules base on MFRC522 IC and that can read and write Mifares tags The microcontroller and card reader uses SPI for communication The card reader and the tags communicate using a 13 56MHz electromagnetic field The RFID MFRC522module supports MF1xxS20 MF1xxS70 and MF1xxS50 tags The RFID MFRC522 module supports contactless communication and uses MIFARE higher transfer speeds up to 848 kBd in both directions RFID MFRC522 have compact design and small size 36x36mm Power can supply 3 3V or 5V This yasy for connection to board with 5V not need power regulator for 3 3V The antenna is built into the board And it has a good sensitivity to a height of 25mmPackage includes 1 x RFID ReaderSketch for VCC 5V GND GND RST D5 SDA D10 MOSI D11 MISO D12 SCK D13 include includeRFID rfid 10 5 D10 SDA D5 RST unsigned char serNum 5 unsigned char writeDate 16 R o b o t D y n T e s t 0 0 0 unsigned char sectorKeyA 16 16 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF unsigned char sectorNewKeyA 16 16 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xff 0x07 0x80 0x69 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xff 0x07 0x80 0x69 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF void setup Serial begin 9600 SPI begin rfid init