RFC: Use RFID as dataexchange between controller and computer NFCDATA

[KnorkFox]

A simple RFID-module to read and write HF-tags, (13,56 Mhz) could be misused as network, to transfer data to/from a smartphone with a RFID-reader.
Simple tags, could transfer 1 or 2 KB of data to a recieving computer, with a reader/writer module.

How about using it, to transfer pictures, measurement data, logs, QR-codes, (<200KB) to a smartphone?

A RFID-module connects usually per SPI-bus to the micro controller. I dont mean reading passive tags.

I like to hear any comments, about this idea.

[Josverl]

What app/webpage would be running on the smartphone ?
Is there something you have in mind for that?

[KnorkFox]

My first pick, would be NFC-Tools
https://www.rfidcard.com/2025-top-10-rfid-reader-apps-for-android-and-ios/?srsltid=AfmBOopIr7K1bxy_EYoFc_Hwzevx9jV7X3Kg_cJgt_VX7S50-uboC4_K

But any NFC-App, which could be altered to read "big tags", could be used.

[KnorkFox]

Peer to peer mode. This is already standard.
transmitrate: 106 kBit/s, 212 kBit/s and 424 kBit/s
SNEP (Simple NDEF Exchange Protocol)
https://nfcpy.readthedocs.io/en/latest/topics/snep.html

[Josverl]

If using Web NDEF, the client on the Android could be a PWA written in # (Micro)Python & pyscript.

(Little) snakes all the way 😁