Can you turn a NFC tag off?
Basically, I'm helping a friend with a game of lazer tag he's trying to throw together with some scrap parts, and one of the ideas was a health pack. To try and balance things, we want the health pack to only work X amount of times, with a Y cooldown between uses. My original thought for this is to just stick a micro-controller inside the health pack that would control a NFC tag that can be turned off an on per parameters set on the controller. The person wanting to use the pack would just pick it up, and stick it to there chest to use it. Once used, the tag goes off for the cooldown.
Alternately, if there was some way to re-write the tag from an arduino or similar platform, that would work just as well (maybe even better!)
thanks in advance!