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RFID questions Answered

I am wanting to create a fun RFID / NFC device that will detect when different people walk into a room.

We all have individual RFID door tags to open a door so I was wondering what the range was on RFID, would the person need to tap their fob or is RFID strong enough to detect if somebody is just carrying the fob in their pocket?

If the RFID isn't strong enough, could I use something in their phone to detect them? Bluetooth maybe?

Everybody has an iPhone, could I detect something on that?

Any thoughts?

Thanks.

Phil

Discussions

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Downunder35m
Downunder35m

5 years ago

You could go the BT way and scan for known adresses, same for the MAC address of the WiFi.

But to my knowledge there is little useful documentation for this on Arduino.

You get the code stuff and libraries but implementing it into a working solution still requires a fair bit of programming.

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mpilchfamily
mpilchfamily

5 years ago

Depends on the type of tags being used. Some active RFID tags have a good range on them. But most tags need to be within an inch of the reader. You need some sort of active tag that is constantly transmitting it's code.

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filthyPhil
filthyPhil

Reply 5 years ago

The tags we use suck for our door lock so I'm guessing they would be no good.

Can you recommend an active tag that would be easy for me to use with Arduino?

Cheers.

Phil