A basic POC that deals with data transfer from Mobile devices to a tag through NDEF.
There are two Major Projects here NDEF(XF) and NDEF.MAUI, both have a basic ui screen that transfers data to an NFC tag through NDEF.
#Disclaimer: Only works for Android and iOS mobile devices (Haven't tested on tablets).
The following Medium Article gives you a gist of how is everything set up : https://medium.com/@freakyali/nfc-ndef-communication-with-xamarin-forms-fae28632c2d3