Questions tagged [nfc]

Near field communication is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity, usually no more than a few centimetres.

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NFC tag stops doing something after connecting to wifi

I now have NFC tags but as soon as I program it with the android app NFC tools to connect to the WiFi and to connect to a URL. Does it only connect to the WiFi and not to the URL Does anyone know how ...
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Is it possible to disable PIN entry in Windows 10 when logging in with a Smart Card?

So I have a situation where I would insert a Smart Card into a PCSC Smart Card Reader for the purpose of logging into Windows. The Smart Card contains the certificate and it's not PIN encrypted. ...
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Is it possible to stream audio over an NFC connection?

If I have 2 devices that support NFC, can I have one device actively transmit an audio stream over NFC without bluetooth while the other device, either passively or actively receives the audio stream ...
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Debug Error Code 10 in Windows 10 for NFC device

I have two Windows 10 (1803) tablet pcs equipped with a PCI-Express NFC reader. In the first one, NFC works like a charm, the second sadly doesn't. In the second device, when I open the Device ...
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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 ...
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Issues installing/compiling mfcuk/libnfc on Kali Linux

I am trying to compile this mfcuk version https://github.com/DrSchottky/mfcuk I get this error on kali when I try to compile mfcuk root@kali:~/mfcuk# ./configure checking for gcc... gcc checking ...
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NFC: Unable to open NFC Device

I have a ACR 122U-A9 NFC Reader and I am trying to have it connect to libnfc on Windows. I downloaded libnfc-win64 and I added libnfc.conf to C:\Program Files (x86)\libnfc\config. The bottom of this ...
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libnfc: unable to open NFC device

I have a problem with libnfc on a Raspberry Pi 3B trying to read data from a PN532 card reader. I installed libnfc as the official site suggest to do and in fact it all worked this morning. I was able ...
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1 answer
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Best long term storage solution? [closed]

What's the best device I can store data on for an extremely long time hundreds or thousands of years? Only planning on writing the data on to it once as it's going to be a time capsule kinda basically ...
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read RFID tags from browser on Android

Is it possible to access the NFC chip and scan a RFID tag from within a webpage displayed in the browser (Chrome or Firefox) on Android? Preferably in JavaScript, so we can put the data read from the ...
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NFC/RFID - Acr122u

So I'm using the Acr122u reader as part of a project implementing Host card emulation on an Android device and need the reader for testing my application. Picture of reader here I assumed at a basic ...
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Is MSO and MISO the same thing on an RFID chip?

I'm about to purchase an RFID reader/writer for my A-Level computer science project where users can login using RFID. I've found a chip on ebay but i cannot see the MISO pin, it does however have a ...
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Remove the user NFC from Windows login screen

I have the Asus Suite III (AS3) and Windows 10. When I installed the AS3, this created a new login option on the login screen: 'NFC is not ready now', but I have not seen anything in the configuration....
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Mfcuk tool not working properly

I recently managed to install libnfc. I wanted to test the tools mfoc and mfcuk, designed to obtain the keys of a NFC tag. Mfoc can retrieve all the keys only if it knows at least one key, Mfcuk can ...
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How do I use NFC tag, to unlock a PC, with my NFC enabled phone?

I am looking for a way to use my phone's NFC capabilities to be put in use for logging in to my laptop. The laptop does not have any NFC capability. So, I am looking for a workaround, that an NFC tag ...
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4 votes
1 answer
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Installing LibNFC on ubuntu

I have some NFC chips I want to be able to read with my ubuntu installation,I have a PN532 Breakout board, and I want to install LibNFC so I can modify and read them. I have been following a tutorial ...
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Login to PC using NFC-enabled Phone

I have a Windows PC with an NFC reader and an Android device with NFC capabilities. Is there any way I can unlock my PC using NFC enabled Phone?
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How to add NFC pairing capability of Bluetooth headphones to Windows 10 laptop?

I have Bluetooth headphones that I pair to my smartphone via NFC. I want to do the same with my laptop but don't have NFC in it. I can buy a USB-NFC reader, but not sure if I get the same ...
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Multiple Devices in Windows 10 Settings?

As seen in the above image, Windows 10 is showing that multiple NFC devices exist on my computer. The machine itself only has one NFC device present hardware-wise, but there are the following ...
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Using EMV Dual interface with MiFare tag for Access Control

I want to allow people to use their Banking EMV cards for Access control by placing MiFare tags on top of them. Some of the EMV cards are dual interface. Will using both MiFare and NFC result in ...
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2 votes
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How can I use the built in NFC reader in my Sony VAIO laptop?

I know that there's a n NFC reader in my laptop (Sony VAIO SVF1531C5E). I'm trying to figure out how can I access it and use it. Any ideas? lspci output: richusx@Prometheus:~/Downloads$ lspci 00:00....
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NFC tag scanning range

I've bought several NFC stickers (NTAG213) with a diameter of 25mm and build a simple scanning app for my android phone. I noticed that the tags have to be in direct contact or within a small distance ...
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How To Read NFC event?

I have an external NFC reader connected via usb to a Windows-7, with the drivers installed. It seems to work, as when I place a NFC card on the reader its led changes from red to green and the PC ...
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nfc pn544 write tag's

I'm trying to write nfc tag's like you can with the libnfc software. The only problem is that my reader, the pn544 is not supported by libnfc. I installed NEARD but I can't write with that. Does ...
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Practical use for Laptop NFC

I have a computer with NFC and a Google Galaxy Nexus. Both support NFC. Unfortunately, Google has failed to come up with any way to use them, too much noise around the keyword nfc. Can I transfer ...
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Need Some help, Cann't Access NFC Card in SDK on windows 7

I have ACR122U reader and Mifare1k card, When I try sdk on windows 7 It's can't access the card, But XP It's can.(XP test in VMware) result in Mifare Programming(SDK Project) I can Initialize and ...
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What all hardwares can be used for NFC Pairing?

as we all know, there are NFC facility in mobile phones now-a-days. It works on the principle related to induction. Once the paring is made, data gets transferred via WiFi or Bluetooth. We might ...
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13 votes
3 answers
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Possible to playback RFID card using NFC functionality on phone?

Sometimes I forget my RFID door access card at home when I go to work, and when this happens I must stay in the building for the rest of the day or have a friend let me in if I leave during the day (i....
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Tracking people with NFC/RFID

I recently read an article about a Texan student called Andrea Hernandez who refused "wearing" an RFID tracking tag at school. I became interested in the subject. Apart from any legal/social/...
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4 votes
2 answers
10k views

How much battery power does Near Field Communication require from a phone? [closed]

My new Samsung SGS3 is equipped with Near Field Communication, which allows the phone to read a unique RFID code wirelessly from a nearby physical tag. The tag doesn't have any power source. Does ...
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2 votes
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Issues installing/compiling mfcuk/libnfc on Windows

After many issues, I think I successfully installed/compiled libnfc using these instructions. Now I am trying to compile/install mfcuk. Once I get to the ./configure step I get the following error ...
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Bluetooth with NFC chip [closed]

What's the point of NFC chip included in new generation of bluetooth headsets? The ads seem to imply the phone will use it to simplify one-time initial pairing, but does it have any other function?
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