Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

RE: Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

weiwei2 — Tue, 14 Jan 2020 13:24:54 GMT

i still have another problem unresolved . i face error below from the line "Ntag ntag(NTAG_I2C_1K, FD_PIN); // instantiate the NTAG object"

nfcControl:51:11: error: 'NTAG_I2C_1K' was not declared in this scope

Ntag ntag(NTAG_I2C_1K, FD_PIN); // instantiate the NTAG object

RE: Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

weiwei2 — Tue, 14 Jan 2020 11:09:41 GMT

good work, i am having trouble understanding the NTAG usage until i saw your post. But i get lots of compilation error, but i resolve by modifying some cpp and h files of

those files have lots of entries like below

PN532/PN532/PN532.h

which cause file cannot be found errors that eventually lead to error like

fatal error: PN532/PN532/PN532.h: No such file or directory

Multiple libraries were found for "PN532.h"

#include "PN532/PN532/PN532.h"

RE: Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

clem57 — Tue, 13 Aug 2019 18:03:20 GMT

Excellent write up @BigG Need to save this one

RE: Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

ytyimin — Tue, 13 Aug 2019 06:00:52 GMT

Another quick question - why not use interrupt in your code? Instead of checking FD pin repeatedly, using interrupt seems to be a more efficient approach. Any thoughts or did I miss anything obvious? As always, thanks for putting this together!

RE: Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

ytyimin — Sun, 21 Jul 2019 20:53:29 GMT

Very nice description on how to use ntag with arduino - the best detailed description I found so far.

Now, I cloned your demo code and try to compile, and noticed that the ntag library in the demo code is NFC_ntag.h instead of the standard ntag.h. Are there any modifications to the standard ntag library? Thanks! Yimin

RE: Decoding different NDEF message types via NXP's NTAG I2C Plus and an Arduino MKR

genebren — Wed, 26 Jun 2019 20:09:41 GMT

Very good blog, covering a great detail of engineering aspects, targeted to meet your design objective.

Well done!

Gene