ACR155U-J1 Anticollision

[SergeyParticipant]

Hi,

I have an NFC card and on top of it there is NFC sticker.
How do I make sure that I read both UIDs?
Test app seems to read just one tag out of two.

Thanks!

[RichardKeymaster]

Hey Sergey, reading more than one tag at a time is possible but extremely uncommon so the anticollision settings are not exposed at the app level. Instead they are hardcoded to first to answer. We could do the work to surface an interface to allow for your request but it wouldn’t be cheap. What’s your use case? Perhaps there’s a simpler way of solving your problem without having to use two NFC tags together.

best,
Richard

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