About new RFID expansion
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Hello,
I'm curious about the new RFID expansion so I was looking for it's schematics in the usual repo but had no luck finding it.
Is yet to be publiced ? If public, where's the link?
Thank you
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@Carlos-Sancho I think this high resolution photo and @pavel-metrokhin said almost everything: there's an NXP PN532 controller chip and a stripline (or rather a microstrip;) antenna on the board and it communicates with Omega serially via UART1. ( 2-Bullet Wednesday
Presumably you know Omega's other expansion boards too. I would be highly surprised if the Onion's board was a more sophisticated NFC / PN532 implementation than the example schematic of the NXP application note - or eg. this Electrodragon board except for the antenna:
PN532 NFC RFID Easy Module R2 (this may be its schematic).See also in the official Onion Omega2 Documentation:
NFC & RFID Expansion
Using the RFID & NFC Expansion
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Thank you for you answer. From my knowledge it could also be using ISP bus so I don’t know hownare you so sure. I’ve been searching and no one says the library uses UART or ISP.
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In fact is more probable that is using ISP or I2C rather than UART.
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Still nothing ?
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@Carlos-Sancho What about the above Onion links?
Have you ever read the official Onion Omega2 DocumentationPlease read - at least - this text in Using the RFID & NFC Expansion:
