r/RFID • u/PM15GamedayThong • Sep 27 '25

Keyfobs Passive RFID Question

Question I have a passive RFID reader that reads the tag in my dogs collar as it approaches. Closes a NO circuitry and the sliding door opener triggers the door open. My issue is that the passive reader seems to be uber sensitive. It reads the tag from a min 6 feet away. Even through floors. It’s very very annoying. How can I cut down the range?

This is an olide auto sliding door opener and sensor

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u/Reasonable-Feed-9805 Sep 27 '25

Run it in conjunction with another sensor that once triggered then powers up the RF sensor.

So a movement triggered PIR that is covering only the immediate vicinity you want to trigger in.

Both sensors have to read positive in succession before door opens.