Bebras
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Joined: Tue Jul 18, 2017 3:26 pm

MFRC522 NFC reader I2C/UART communications

Tue Jul 18, 2017 3:31 pm

I have acquired one of these readers integrated in a circuit like this:
Image

But I was unable to connect to it using I2C. On closer inspection of the physical board I can't see the I2C pins connected and the documentation on points of sale is lacking.

Has anyone had any success using I2C or UART with these boards?

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ukscone
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Re: MFRC522 NFC reader I2C/UART communications

Tue Jul 18, 2017 3:36 pm

there seems to be some documentation on https://github.com/simonmonk/clever_card_kit that might help

Bebras
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Re: MFRC522 NFC reader I2C/UART communications

Tue Jul 18, 2017 3:45 pm

Thanks, but this library(like all for MFRC522) support SPI protocol. It's more of a personal project of mine to make it work with I2C, just want to know if it's even possible.

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