How to interface PN532 NFC RFID reader with microchip SAMD21G18A microcontroller

[LupeshS]

Hello everybody, we bought a PN532 RFID for read RFID tags with ISO 14443 Type A protocol. we need to interface with Microchip SAMD21G18A-AU microcontroller through UART or I2C for authentication purpose. Your prompt response is highly appreciated. Thank you!

#PN532/C1 #SAMD21G18A

[EduardoZamora]

Hello @LupeshS

Hope you are doing well.

Please, consider that PN532 is Not Recommended for New Designs. For new designs, we recommend using PN7160. If you are still planning to use this device that is Not Recommended for New Designs, please keep in mind that you may face some supply issues in a future. I truly apologize for the inconvenience this might cause you.

I will recommend you basing your development on the documentation available in the PN532 product page. There you can find some useful documents such as this PN532 Application Note, which intends to allow the user getting quickly started with this device. It summarizes commands needed to use PN532 as a reader, as a card, or in an NFC P2P communication. It gives an overview on possible interfaces with the host controller.

Also, perhaps you could refer to the NFC-FRI SDK (NFC Forum Reference Implementation).

For a full description of the PN532 IC, please consult the PN532 Data Sheet.

Hope this information helps.

Regards,
Eduardo.