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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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Authenticate UL-C tag with ACR1255U

I am using a ACR1255U-J1 from ACS and i'm trying to authenticate a UL-C tag via PC/SC transparent commands. For the moment my commands look like this: command = Optional("FF C2 00 00 02 81 00") // start session response = C0 03 00 90 00 90…
John Smith
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MF Plus switch from SL1 to SL3 with AC122U

Im having a problem with switching a Mifare Plus SE from SL1 to SL3, using acs acr122U with pn532 In SL1 the card is detected as a Mifare Classic (Same ATR) and to perform the switch i need to activate the comunication in 14443-4 and do the auth…
rudikiaz
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Two ACR122U NFC readers on Raspberry Pi3 Android

I'm trying to work with two NFC ACR122u readers connected to my Raspberry Pi3 under Android IoT. I'm utilizing native acssmc-1.1.3.jar library provided by ASC. Everything is working fine with one reader connected, I'm able to get tagId, turn on/off…
Jane Middleton
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ACR122U - InvalidDeviceStateException when transmitting APDU

I downloaded the android ACS library and was trying out the sample code and the ReaderTest app on my android device using the ACR122U reader with a otg cable. I tried sending the following APDU command - FF CA 00 00 00 but i keep hitting this…
Prakash Ash
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ACR122U idle/decection LED state

Is there any APDU command that could control LED state of PRESENT/ABSENT reader states? (eventually for any other state) For this purpose there are only buzzer linked commands in the API. Thanks.
gnivirht
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ACR122U LED controlling

Does anybody have any clue how to control the bi-color LED of ACR122U via the method Reader.control() on Android? (library acssmc-1.1.3). I am reading the API and have no idea what the command description means: Example: byte[] command = {(byte)…
gnivirht
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Python ACR122U Poll

I was wondering if there is a way to poll an ACR122U in python and if so how? My script below gets the UID of a card but continuously runs. I know it runs because of while1 but it shows what i want to achive from smartcard.scard import * from…
shaggs
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APDU Read Record ACR122

I am trying to use a USB NFC card reader, ACR122U. I managed to get the ID of the card by sending 0xFF, 0xCA, 0x00, 0x00, 0x00 and to tell the unit not to beep by sending control 0xFF, 0x00, 0x52, 0x00, 0x00. However, using an Android app I wrote a…
Jo Colina
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MIFARE Classic 1K load authentication keys failure with ACR122U

I am using an ACR122U NFC reader/writer and a MIFARE Classic 1K card. To load authentication keys for the MIFARE card, I use the following APDU command: FF 82 20 00 06 FF FF FF FF FF FF The reader responds with 90 00 (indicating success). However,…
FaizanHussainRabbani
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ISO 14443-3A communication procedure with libnfc

I work on implementing a custom ISO 14443-3A protocol between ACR122U and AS3953. I want to send a frame when the tag is in ACTIVE state but not using ISO 14443-4. So, using libnfc, are the following steps correct to send something to…
chpl
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ACR 122U connected with android disconnects immediately while touched tags

I am using ACR 122U card reader connected with android phone via OTG cable. I tested given code by ACS (http://www.acs.com.hk/download-driver-unified/5102/ACS-LIB-Android-112-A.zip). The reader connects with phone successfully. But when tags are…
Mahabubur Rahaman Melon
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How to get RFID tag from ACS122U NFC

I am working on ACS122U NFC which reads tag's RFID. From ACS http://www.acs.com.hk/en/products/3/acr122u-usb-nfc-reader/ I got the development kit which will only connect to the reader and gives the state when a tag is placed on the NFC reader. But…
KarnakerReddy Gaddampally
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ACR122U SDK for Mac OSX

I just got a NFC Reader (ACS ACR122U), but the SDK available is for Windows only. Where can I find a SDK for Mac OSX? I already contacted helpdesk of the hardware provider but until now I don't get any response from them.
gptimajo
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ACR122 - Android / How to extract the UID

I try to integrate an ACR122 to my android app. I'm using the ANDROID Library (http://www.acs.com.hk/en/products/3/acr122u-usb-nfc-reader/) available from ACS. Everything work, I can detect the presence of a card but I want to extract the UID/ID of…
kh4ZE
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Java TerminalFactory and ACR122U NFC reader on raspberry Pi

I'm using a Raspberry Pi to build an NFC card reader applet in Java. For some reason Java doesn't 'see' the entire Terminal, while nfc-list and pcsc_scan all see the connected reader. pi@raspberrypi ~ $ sudo nfc-poll nfc-poll uses libnfc 1.7.1 NFC…
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