Is it possible for an Android application to send a previously stored RFID card ID to a NFC reader? The aim would be to use an Android device to enable access to a room instead of a physical RFID c...

I am working on an RFID-based inventory control project, and I want to make a writer through which I can write data on each passive RFID tag. How can I accomplish that?

I did enough research on reading RFID tags using Android phones(smart phones). My understanding of this is that for NFC-enabled smart phones (Nexus S) it is possible to read RFID tags, but ...

Is it possible using ATR to determine whether I have ISO14443A or ISO14443B type card? If yes, how?

I've been asked to develop an app with the core functionality of reading RFID chips in pets and checking those identification numbers against a database through some web service. I was first dire...

i have a very fundamental issue when reading from a rfid chip using ios 13+ and swift 5, i have two setups (NFCNDEFReaderSession and NFCTagReaderSession), NFCNDEFReaderSession: import UIKit impor...

I want to ask 2question about nfc card emulate : can I emulate nfc card include uid that I select? I read HCE and don't understand what is the diffrent between HCE and Card Emulation with a Secur...

I have an Identiv uTrust 3700 F CL Reader that I can't setup with on macOS Catalina 10.15.4. I would like to read NDEF Tags, use U2F (FIDO2 CTAP1) via NFC, and emulate a card from the reader (for o...

I am having problems with calculating CRC-16 implementation of a byte array in java. Basically I am trying to send bytes to a RFID that starts writing to a tag. I can see the checksum value of arra...

I have a card reader that always report 64 bits, and can read cards with 4 or 7 byte UIDs. As an example, I see it can report: 04-18-c5-82-00-00-00-00 - a 4-byte UID in the form uid0-uid1-uid2-u...

I know it's not possible for the iPhone 6 to read RFID tags, and I know that the iPhone API only allows use of NFC for Apple Pay, but is it possible to read an iPhone's NFC chip as if it were an RF...

I am working on an application that required reading the mifare card serial number, the language I am working with is C#. I am new to mifare reader programming, so I am sorry for asking dumb ques...

This question is specifically about MIFARE Ultralight C/EV1, or MIFARE DESFire EV1, or even NTAG cards. I want to implement a system of tokens, so that each time a normal user reads one of those ca...

Which of MIFARE cards support a single block that can be programmed to require a password for writing, but is available to everyone for reading its data? And is such standard eligible on all platfo...

I need to read serial number of MiFare card usin WinSCard. I am able to read 7B UID from the MiFare card. The confusion is that i dont know if the UID and the serial number of MiFare card are s...

I have researched Mifare and other card emulation I have very good knowledge in programming (not Android, but C/C++). I have proxmark and I have made multiple emulation codes for proxmark, so I kno...

I am working with Android and ISO14443 type B tags and there is an issue that I am not able to solve. Hopefully someone can give a hint. When NFC setting of the phone are turned on, it starts send...

I have a RFID-RC522 (MF-RC522) module and I'm using Arduino sketch program. To use this RFID, I downloaded the Arduino MFRC522 library. And I run the example code of library. Here is the code. /...

I am facing a very strange problem with MIFARE DESFire. When I write small amounts of data (e.g. 11 bytes), the write operation succeeds. However, when I try to write e.g. 50 byte, the response is ...

I want to implement a functionality in which an Android device can detect the HID ProxCard II using NFC. Can anyone help me to solve this issue?

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. ...

I was wondering if anyone had any experience getting RFID readers to work through WebUSB. The reader I'm using is the https://www.parallax.com/product/28340 . From what I've read, I'd have to writ...

I recently purchased the RFID RC522 reader/writer,along with some NFC Mifare classic 1K 13.56mhz tags. The seller on Amazon mentioned that the NFC tags were compatible with the rc522 reader/writer;...

I have been trying for more than a week to make an Android phone authenticate with a Mifare Ultralight C. I have confirmed I can write to the tag (by writing to an unsecured memory page and then re...

I am testing a Speedway reader 420 with a guard minirail antenna connected to Port 1. The problem is that I cannot get this to work. When I telnet to the Speedway reader, and issue the "show rfid ...