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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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libnfc - Emulate NDEF URI - NFC

I am using an ACR122U-A9 NFC Reader and Mac OS X. I want to emulate and NDEF URI Message (for example https://stackoverflow.com), so when an Android or (newer) iPhone approaches the NFC Reader, the Browser should automatically open the URI. For that…
mtw
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NFC Reader ACR122U and libnfc.driver.acr122_usb Unable to write to USB (Result too large)

I try to use an ACR122 USB NFC-Reader on Mac OSX Mojave 10.14.6 with libnfc and I've got a "Unable to write to USB (Result too large)" error when I try to use the command LIBNFC_LOG_LEVEL=3 nfc-list: info libnfc.config Unable to open file:…
Me7e0r
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How to reset this code after detecting a smartcard without terminating it, thus continues to listen for other smartcards?

I have a code running and successfully printing the ATR, UID, and status, however, the program ends after detecting and printing the UID. How do I make my code reset after detecting and wait for the removal and insertion of a different card (or same…
NedSunshine
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How to change polling sequence on ACR122U / PN532

I'm looking to develop a Go application to read EMV and NFC cards with a 2 separate custom wakeup frames. My polling loop should check WUPA, then WUPB, then WUPCUST1, then WUPCUST2. Both custom frames follow the same protocol as Type-A At the end…
PassKit
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FAST_READ with ACR1255U

I'm currently using this NFC reader ACR1255 to reads NTAG213 with an text ndef on it on an iOS app I'm currently doing 2 read commands for 16 bytes each (because i know the size of my ndef message) but i find it not really reliable While reading the…
John Smith
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How to connect to ACR122 with CardService

I'm writing a program (Java Application) for reading ePassport. For access I use the library org.jmrtd. What kind of object should I transfer in CardService.getInstance() ? import net.sf.scuba.smartcards.CardService; import…
Igor.D
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ACS ACR122U LED/Buzzer settings

I'm having issues trying to set the LED and buzzer using APDUs on an ACR122U (firmware version 2.1.5). This command should set the Buzzer Output for Card Detection, but I always get an error response: > FF 00 52 00 00 < 63 00 Also, when trying to…
Alarik
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External RFID reader on Android with JMRTD

Context I have a Minix x88i Android computer (not relevant, but it's without internal NFC tech), connected to an external RFID reader (the ACR1252u from ACS). ACS provides an API for Android so I can communicate with my reader through my…
user3050534
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How to a send SNEP GET request from Android

I have an NFC reader ACS ACR122U and I want to send data from my Android phone to it. I have found many examples on how to connect my two devices in P2P mode and how to send data from my phone to the ACR122U, but my desktop server (ACR122U) always…
firegloves
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Installing Java Card applet using ACR122

I'm a newbie to Java Card technology, and I just started reading about it. I want to create a smart applet for my card. My goal is for it to work on card used contactlessly. I downloaded jar file (GlobalPlatformPro) to install *.cap file on card…
Krystian
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ACR1222L FF 82 Load Authentication Keys fails with 63 00 Operation Failed

I'm using ACR1222L NFC smartcard reader with Mifare Plus cards (Security Level 0 as of now; manufacturer default keys A and B). I tried a variety of commands to load authentication key into the reader: FF 82 00 00 06 FF FF FF FF FF FF FF 82 00 01 06…
ADTC
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node-hid not showing all USB devices

I'm using node-hid with this call: HID.devices() and I should get a list of all connected USB devices as listed here in the guide. As result I'm getting this devices list: [ { vendorId: 1452, productId: 33346, path: 'USB_05ac_8242_6500000', …
Matteo Guarnerio
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NFC Mifare Ultralight Read/Write for plain Java Desktop app using ACR122

After consulting a lot of threads on stackoverflow, I still have not found a working "example" for reading/writing MiFare Ultralight or Classic NFC cards using a ACS ACR122 Usb smart card reader in a Java Application... Sure, I tried to consult the…
Peter De Leuze
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How to get the UID's of all contactless smartcards in the field of a reader using Java?

I have an ACR122U reader. I want to be able to get the UID's of all contactless smartcards that are placed on top of the reader. Similar to what the nfc-list command from libnfc does. I'm using SmartCardIO at the moment, but it doesn't seem to have…
ritch
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Ultralight C, Smartcardio and ACR122

I'm developing in a Java project with a PS/SC ACR122U with the library SmartCardIO. When I put a password and modified the page 0x2A, I am trying to read again the tag. Indeed, I know the protocol and I found here…
Georgevik
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