Hello again and thanks. From your answer i understand how poor my post was. Scenario is: - domoticz on raspberry pi - esp8266 sending to idx XX the tag when read. I work in a tennis club with 250 users and i need to create zones allowed to a part of them and park for all. I've done a test making all...

Good afternoon,
i'm working on a similar project in which i'm considering 250 tags to allow to power on a switch to open a door.
Can you explain (please the easy way) what to do to allow a sort of "allowed list?" to use in events?

Thank you very much.
Luca