Hello. Im designing different electronics devices, mostly based on avr, arm MCUs and boards with them like arduino, stm-discovery etc.
(autopromotion^))
Hi. Used to do a lot of things for quest rooms. I can help you with this task, design and program this system, show whjat to buy and how to connect, advise something maybe. But your $$$ is not serious. If it is not final - lets talk.
ps - it is better to use RC522 rfid module - they are more common, tons of libraries and definately no problems with them.