NFC unique adress?

[Inspectron]

Does NFC has something like an unique adress?

Because the nfc examples in the sdk detect all nfc devices. But I would like to detect only predefined devices.

Or is there another way to detect only specific defined devices trough nfc?

[Alex]

Eirik, I don't know what is implemented in nRF52 but using nRF51 with passive Tag M24SR64 for example can be a doorlock. It is passive and if password over RF enabled then only device which knows password can write to the tag. ARM can recognize successful writing and perform operation accordingly. It is just idea, I have no idea how other doorlocks done. But if Inspectron wants that configuration then it is the solution. And mobile phone obviously needs application running to unlock the door

[Inspectron]

So you dont need to type in the password?

[Alex]

It can be typed once similar to entering WIFI password into phone or hard codded into app. If hard coded then each app will be for particular doorlock.

[Inspectron]

It still necessary to open an app...but could be an interesting solution, if its not possible without app.

[Alex]

Why do you need to open app? It can be as background process, depends on how you design it including autostart with phone. Or you mean open app to enter password?