I have a specific question regarding the Nicla Sense ME I am using for a project for quite some time now. I would like to use the NFC functionality of the ANNA-B112 SoC on the Nicla. According to the system integration manual:
The SoC has the function of a NFC tag, which is unfortunate but will suffice. The problem is, how do I even configure this as NFC, and how do I use it?
I have never programmed NFC before, and if this question is too broad, maybe a link to a guide or video I could use as reference to get started would be great.
What I have understood is, as an NFC tag, I can only use an external device to read or write data to it, but I have no idea how big the data can be, where it is stored, and one thing that worries me is, the system integration manual says:
Ensure that the NFC pins are configured correctly. Connecting an NFC antenna to the pins
configured as GPIO will damage the module
I need to do this before everything else, but if I do it wrong I may permanently damage it.
The search for a suitable NFC antenna is another story, but not part of this topic.
1.10.3 NFC antenna
The ANNA-B112 module includes a Near Field Communication interface, capable of operating as a
13.56 MHz NFC tag at a bit rate of 106 kbps. As an NFC tag, data can be read from or written to the
ANNA-B112 modules using an NFC reader; however, the ANNA-B112 module is not capable of reading
other tags or initiating NFC communications. Two pins are available for connecting to an external NFC
antenna: NFC1 and NFC2
I don't need that much NFC functionality, just to read out a String and rewrite it would be enough, however I haven't found anywhere how to even configure the pins to be ready for an antenna. Is there an Arduino library for that?