Is possible to configure the ST25R3911B chip to send NFC url message only without reading? We would like to use the high-power gain capability of the chip with iPhones.

[Ulysses HERNIOSUS]

Hi,

ST25R3911B is mainly a reader/writer. It can read/write NDEF URI from/to tags. If the other device is a peer device it can also can send NDEF to it (e.g. Android mobile).

All these options requiring transmitting and receiving data. I fear I don't understand your comment "without reading".

AFAIK the iphones don't support P2P - they can only emulate payment/loyalty cards and read the content of NFC *** to T5T.

(https://www.bluebite.com/nfc/iphone-nfc-compatibility)

This means the direct interoperability of ST25R3911B with the iphone is currently limited to the ST25R3911B accessing/talking to the card emulation of the iphone (payment/loyalty cards).

Regards, Ulysses

[claudiocc]

Hi Ulysses,

Thanks a lot for your answer. So the ST25R3911B can be configured to generate a card emulation for the iPhones? How so? We would like to read a simple NFC content (Url website) with the iPhone...

Thanks again!

[Ulysses HERNIOSUS · Accepted solution]

Hi,

no this is not possible. ST25R3911B does not do card emulation. Please read carefully my previous answer.

ST25R3911B can only talk as Reader/Writer to an iphone - accessing the iphones payment/loyalty card emulation.

The only way to provide an NDEF to an iphone is by being/implementing one of the NFC Forum tags. E.g. using ST25TV/DV, or ST25TA

Thanks, Ulysses