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Questions tagged [acr122]

The ACS ACR122U NFC Reader is a PC-linked contactless smart card reader/writer developed based on the 13.56 MHz Contactless (RFID) Technology.

The ACS ACR122U NFC Reader is a PC-linked contactless smart card reader/writer developed based on the 13.56 MHz Contactless (RFID) Technology. Compliant with the ISO/IEC18092 standard for Near Field Communication (NFC), it supports not only Mifare® and ISO 14443 A and B cards but also all four types of NFC tags.

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Unable to claim USB interface (Device or resource busy)

I want to use my ACR122U contact-less smart card reader in Ubuntu 14 smarty. So I installed my required packages and drivers. Finally when I want to use the reader I receive the following error: rc@rc-System-Product-Name:~/Desktop/itsme$ sudo…
hamid s
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ACR122 - Card Emulation

How can I get the NFC contactless reader ACR122U to behave as a tag (card emulation mode)? The prospectus claims that the device can do card emulation, but the SDK does not seem to provide an example or documentation for this feature. Does anybody…
chalad
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How to start interacting with the ACR122U-A9 NFC reader?

I'm a junior PHP/JavaScript/HTML developer, recently hired by a company that makes photobooths. I had never worked in a Ubuntu system before this. This I find relevant because I think that for this reason I might be skipping an obvious step or…
Helwar
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ACR122 NFC reader does not work with libnfc ubuntu

I just got myself a new ACR122U-A9 nfc reader that I need to set up with libnfc on ubuntu 18.10. It needs to work with libnfc because mfoc interfaces wit that (If there is a way to use mfoc without libnf, great! That solution would help me as well!)…
C. Dautermann
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libnfc with ACR122U gives no response on SELECT (by AID) APDU

See NFC reader "SELECT (by AID)" APDU is not routed to Android device on debugging and eventual results. TL;DR the reader might simply be defunct. I have ACR122U nfc reader. I try to run this example…
cliffroot
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ACR122U - Read NFC data sent from android phone

I am required to transfer a simple string via NFC to the PC through an android phone. To enable NFC capabilities in the PC I have plugged in an ACR122U to read the transmitted data from the android phone through my C# program in the PC. I have tried…
Hasitha Shan
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Force PC/SC driver on ACR122U NFC reader

I have trouble with using my ACR122U RFID card reader form ACS. I need to connect it to my Mac using the PC/SC driver. I installed the driver from the ACS website and confirmed that it's running. However, whenever I test using the nfc-list command,…
rebellion
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Fire an event when an NFC card is presented

I am attempting to build a webapp on a Chromebook, I need it to read RFID card serial numbers with an ACR122U NFC. I am using chrome-nfc. I am reading cards happily, but I do not know how to fire an event when a card is presented. Are there any…
Hank
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"error libnfc.driver.acr122_usb Unable to write to USB (Connection timed out)"

I installed required package to use my ACR122U contactless smart card reader in Ubuntu-14-LTS. Fortunately it's work fine: ebrahim@ubuntu:~$ pcsc_scan PC/SC device scanner V 1.4.22 (c) 2001-2011, Ludovic Rousseau Compiled…
Jean
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The main difference between RFID and NFC when emulating an NFC tag on ACR122U

I have some problems with the overview of the NFC standards. What i know is that: ISO/IEC 14443 is the standard for proximity cards and use RFID as communication protocol; ISO/IEC 18092 (NFCIP-1) is the NFC standard and is based on ISO/IEC…
S.Pols
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Control full APDU with NFC Software Card Emulation on Android

I'm busy with an app to emulate normal APDU communication on a Nexus 7 with CM10.1 to an ACR122U102 reader/writer. I found this blog about software card emulation and wrote an app to make my device (the nexus) appear as a card. Now I'm trying to…
Fons
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ACS ACR122 SDK Android Peer-to-Peer support?

I am looking to connect the ACS ACR122 to an Android tablet via USB using their SDK. This part works and I am able to read Mifare NFC cards. The problem: I am unable to read NFC smartphones like the Galaxy S3 or Nexus S when I tap against the…
David Merel
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How to card emulate with ACR122U-A9

I have a ACR122U-A9, I want to card emulate with it. I ask who has done this point? Can you give me some suggestions? Now I have also other problems, when I put the white smartcard on this NFC reader, LED blinks only once. But when I put the phone…
user1938143
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NFC reader "SELECT (by AID)" APDU is not routed to Android device

I have an ACR122U NFC reader/writer connected to my Windows machine with ACR122 driver installed. I try to use javax.smartcardio API to send an SELECT (by AID) ADPU to my Android device (which should be in HCE mode). This is my code: TerminalFactory…
cliffroot
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How can read/write to my ACR122U NFC/Smartcard reader?

I bought a GoToTags ACR122U NFC/smartcard reader but I am really disappointed with it. Their free windows application simply locks you into their propietary stuff. I want to write my own application to read/write NFC tags. I have been trying to find…
Lord of Scripts
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