Topic: How to let ACR122U emulate a nfc tag so that my Nexus 4 can read it?

My goal: let ACR122U emulate a nfc tag with text "ABCD" so that my Nexus 4 can read the text "ABCD" by reading the emulated nfc tag.

My question: How to do it? For example, can I do it using the "nfc-emulate-uid.exe" utility? If so, what's the detailed command and parameters to do it?

Re: How to let ACR122U emulate a nfc tag so that my Nexus 4 can read it?

Hi xiebo!
Did you found a solution or code for your question?

Re: How to let ACR122U emulate a nfc tag so that my Nexus 4 can read it?

Hi,

If you read some instructions on wiki, you will see that's not possible to make a reliable P2P communication using ACR122U :

http://nfc-tools.org/index.php?title=De … ity_matrix

some details on forum :

http://www.libnfc.org/community/topic/5 … th-libnfc/

Note : in recent versions of libnfc, we are able to drive ACR122 without PC/SC (directly using libusb) but the problem stay the same on hardware side : the MCU placed on front of PN532 disturb connexion between libnfc and PN532.

http://nfc-tools.org/index.php?title=ACR122

Romuald Conty