Actually arrival is pretty simple, tag gets into a range of receivers antenna, but the departure is what is causing the problems. First some information about the setup we have. Tags: They work at...

So are NFC tags really UNIQUE from each other, at least in their SERIAL NUMBER? And can we rely on the fact that no 2 NFC tags can have the same serial number? I'm highly skeptical about this as th...

I'm using the MFRC522 library on my Arduino UNO to read Mifare RFID tag Info. // Print HEX UID Serial.print("Card UID:"); for (byte i = 0; i < mfrc522.uid.size; i++) { Serial.print(mfrc522.uid...

Is there a reliable way to find out if an RFID card is either a Mifare Ultralight or a Mifare Ultralight C? The only way i found so far is utilizing the difference in size of those two cards issui...

What is the difference between ISO 14443-3 and ISO 7816-4 APDUs? I'm asking this because seems some cards use former to communicate with reader, some latter. I'm confused with this, would like to g...

Im developing a NFC reading system with C#, according to given sample codes with SDK I cannot connect the device with the application. Sometimes it return unknown error code (-2146434967) which is ...

This is killing me... I am trying to find an NFC/RFID tag that: Implements encryption and/or cryptographic signing of data sent to the tag such that the tag can be authenticated by the reader. I ...

Is there any way for an Android phone with NFC (Nexus, Galaxy, etc.) to read a passive RFID tag that was designed for longuer distances reads? I'm interested in using a same tag that can be read by...

I am starting an open source project by using RFID card readers for saving data from an hotel information system. heres my scenario, i will be using rfid to save the data from the database and stor...

For iphone is it possible to communicate RFID tags with IDBlue RFID pen (bluetooth connected) and store data into my application? If yes then is there any some readymade component or code library...

To be more specific, I'm trying to implement an Android application, which forces the phone to operate as an RFID tag. This tag is read by scanners placed around doors (thus the > 4 inches constrai...

Getting started with Nexus S NFC/RFID. Can anyone provide any guidance? I'm interested in creating some home brew demos using the nexus s NFC/RFID hardware. I think I need to find the appropriate ...

I have 2 issues with reading NFC Tags. First is Tag Read Activity creates each time when tag received. And second issue is activity opens in full screen window, not under Tab Host Activity, but f...

I'm using an Rfid Reader (a small usb stick) which imitates an HID keyboard on Debian Linux (Squeeze). less -f /dev/input/event2 gives me a bunch of gibberish on the screen the moment an rfid tag ...

I have an ACR122U Contactless NFC reader. I bought a lot of blank RFID Mifare 4k tags. Their default Authentication KEY A and KEY B is FF FF FF FF FF FF. Now I want to change them to something els...

Can NFC in nexus s mobile can read ordinary RFID tags?

I'm attempting to build a simple authentication system built around RFID. Basically I have an old computer and I'd like to buy a USB RFID scanner. However, I have no experience in this area a...

Let’s share on a common place ideas about the NFC development, technology… I warmly welcome any comments you might have – either about the Android or Symbian SDK or about the NFC in general. From ...

I'd like to be able to write and read strings from a Mifare 1K RFID. I successfully read and wrote to the tag I have using the NXP TagWriter App. I then tried the code here, but was able to get any...

we have bought the ACR122 USB SDK for NFC testing. We would like to build the test desktop application for the ACR122U-A2 NFC reader. We are developing it in Java on the Microsoft Windows 7 platfor...

I am looking for some libraries in delphi to programming and reading from RFID cards. today I use normal Mifare 1k cards, and use a simple library to read the cards UID, but I would like to do more...

I'm new to the whole RFID arena. I need to store an RFID pr asset in the database. No decision has yet been made on what system will feed that particular field (or fields?) so I just want to set a...

maybe my question would be lost in the forum, but has somebody work with RFID tags? I know I can read them, but can I write or modify the inside data? Does anyone know where can I find more a...

Do RFID tags have a "real" processor capable of simple computations? If so, what is the processing power of nowadays RFID processors?

I'm experimenting with the BMW Java SDK on the new BMW 116i Innovation Package. Basic things like turning the lights on and off, starting and stopping the motor work fine. What I'm trying to do now...