To get straight to the question, just skip the next section please, thanks.
I have successfully finished my first Arduino project, making a setup for opening my bedroom door using a button outside the door and 2 buttons inside for lock and use. The last component I used was a hobby servo I bought at a local hobby shop. I actually took off my door handle and was left with the little square hole inside some assembly that actually pulls the latch in.
Anywho, I just received a Parallax RFID reader with 2 transmitters and was hoping to just make the setup work with 1 button on the inside and just the RFID reader on the outside. I am cool with just adding the known tag code in the program, but I want to be a bit fancier and make it so I can add more tags into it with the master tag, as well as removing known tags. I imagine this to be done with an array, but I don't quite understand how one would go about doing this. [ The fact that you start with an array in the code that is modified and changed while not attached to my computer xD ] If anyone could point me in the right direction or maybe even provide a little example code, I would be GREATLY appreciative.