nfc recognition based on ART-Pi, serial communication expansion board.
NFC chip - NXP's PN532 (the most commonly used NFC on a certain mobile phone, high quality and low price)
USB to TTL is connected to the 4P pin on the left side.
When controlled by ART-Pi, interact through the two buttons on the right.
The upper SW1 reads the card, and
the lower SW2 writes the card.
Implement simple copying. 12864 displays the card model, card memory size, read and write success information, etc. in real time.
①2021.01.26 TTL line reading and writing test passed, using the host computer tool MifareOneTool.exe
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