I am starting a project for which I have +2 arduinos (a server and clients) communicating throw NFC. The communication is one direction (server → client). The server updates a counter periodically, writes to a tag and any client can get it by reading the tag. A simple diagram would be:
server with NFC module --(write)–> tag <–(read)-- client with NFC module
the tag would reside on the server box. I am using a tag because I do not want to worry about opening/closing NFC connections between server/clients, making it simple.
My question: is there a way that the server can “connect” directly to a tag without having to use a full NFC module?
Does this make sense?