I'm thinking through a project and trying to sort out what the best approach would be.
What I'd like to do is have a portable RFID reader and a set of RFID cards. I want to associate a short audio file with each card and to have the reader play the sound when touched to the card.
The way I figure it there are two approaches to this:
1: Store the audio file, and some id data, on the RFID card itself, this would allow me to have multiple sets of cards with different information without ever having to load new data on the reader. However I don't know if RFID cards with those characteristics exist.
2: The RFID cards have an ID and the reader has a database with all the audio files and additional information for each card in the set. The downside here being that you would have to load new data sets for each different set of cards. Not entirely opposed to that but it'd be nice if I didn't have to deal with it.
Any thoughts on the best approach? I'm fairly novice at this.