libnfc | Platform independent Near Field Communication library | iOS library

by nfc-tools C Version: libnfc-1.8.0 License: LGPL-3.0

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | libnfc Summary

libnfc is a C library typically used in Mobile, iOS, Xamarin applications. libnfc has no bugs, it has no vulnerabilities, it has a Weak Copyleft License and it has medium support. You can download it from GitHub.

Platform independent Near Field Communication (NFC) library

Support

Quality

Security

License

Reuse

Support

libnfc has a medium active ecosystem.

It has 1402 star(s) with 413 fork(s). There are 84 watchers for this library.

It had no major release in the last 12 months.

There are 91 open issues and 473 have been closed. On average issues are closed in 411 days. There are 11 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of libnfc is libnfc-1.8.0

Quality

libnfc has 0 bugs and 0 code smells.

Security

libnfc has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

libnfc code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

libnfc is licensed under the LGPL-3.0 License. This license is Weak Copyleft.

Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

Reuse

libnfc releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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libnfc Key Features

No Key Features are available at this moment for libnfc.

libnfc Examples and Code Snippets

No Code Snippets are available at this moment for libnfc.

Community Discussions

Trending Discussions on libnfc

Qt6 multi-threading issue

Revolut visa Debit card not detected by libnfc6

Invalid pointer exception using pinvoke on libnfc for string values

Reading from an NFC reader directly into a desktop web application?

Problem with detecting badge with PN532 and Raspberry Pi

QUESTION

Qt6 multi-threading issue

Asked 2021-Dec-18 at 21:16

I'm reading this and this doc. But I'm still new to multi-threading and I cannot fully understand these topic.

Qt 6.2.0 under Ubuntu 20.04. Basically I have this function:

...

ANSWER

Answered 2021-Dec-18 at 21:16

You cannot call doWork() directly from the main thread because in that case it would be called in the main thread which would be blocked then. Exactly as you observe now.

So the correct way you trigger the worker to do the work in a secondary thread is this connection:

Source https://stackoverflow.com/questions/70406357

QUESTION

Revolut visa Debit card not detected by libnfc6

Asked 2021-Apr-08 at 08:03

Trying to read various payment cards using PN532 NFC RFID Module. libnfc6 sucessfully polls most of the nfc cards and even mobile payment method is detected, but none of my Revolut cards are detected by nfc-poll app.

libnfc was compiled locally from libnfc-1.8.0 git tag.

My current polling setup:

...

ANSWER

Answered 2021-Apr-08 at 08:03

Buying new PN532 NFC RFID Module solved the issue.

Source https://stackoverflow.com/questions/66868180

QUESTION

Invalid pointer exception using pinvoke on libnfc for string values

Asked 2021-Feb-23 at 09:39

I am trying to communicate with an NFC reader/writer on a raspberry pi 3 using dotnet core.

I have to say that the different libnfc command line tools I used are all working fine (aka I can read and poll my tags, no problem on this side).

The idea is to use dotnet core and C# to orchestrate the libnfc library and it seems to work fine except as soon as the function I call returns a string, I get the following error message:

...

ANSWER

Answered 2021-Feb-23 at 09:39

The comment from Matthew Watson and the link he shared had the correct answer!

So I modified the pinvoke line like this:

Source https://stackoverflow.com/questions/66330007

QUESTION

Reading from an NFC reader directly into a desktop web application?

Asked 2021-Feb-22 at 14:36

I have LibNFC working from the Linux terminal recognising my ACR122U Reader, and I wanted to know if there was a method for it to work through Chrome on a Linux Desktop as it is really similar to Android Support, with all the NFC device handling done by libnfc and the browser just has to know about this library instead of every type usb or other device than can do NFC.

I have tried using the WebNFC API to connect it :

...

ANSWER

Answered 2021-Feb-10 at 06:54

Web NFC is supported on Android only as of February 2021. See https://web.dev/nfc/

The WebUSB error suggests you're requesting an interface that implements a protected class (among those below):

Source https://stackoverflow.com/questions/66111078

QUESTION

Problem with detecting badge with PN532 and Raspberry Pi

Asked 2020-Mar-30 at 01:55

I have been trying to detect an tag using the PN532 module that I bought from amazon here:

https://www.amazon.ca/ASHATA-Controller-Raspberry-Interface-Switching/dp/B07XFNDHNS

I followed the tutorial here:

http://wiki.sunfounder.cc/index.php?title=PN532_NFC_Module_for_Raspberry_Pi

I tried using both I2C or SPI, but both results just give me the following when I run nfc-poll:

...

ANSWER

Answered 2020-Mar-30 at 01:55

Answer

Update 2020mar29hkt2040

Part 1 - libnfc v1.17 I2C config tested OK

The OP has no luck in testing libnfc I2C mode and SPI mode. I tried I2C mode and found everything OK. I guess the OP has not set the config file, or has not set "auto scan = true". See my example libnfc171 config file in Appendix A. PS - (1) My NFC reader can detect a tag without any problem. (2) I am using Rpi4B buster 2020mar13.

Part 2 - Now testing SPI mode 2020mar29hkt2044

Sunfounder config instructions recommends lowering SPI speed 50kHz. So I have changed the /bbo/config.txt file as shown in Appendix F.

/ to continue, ...

References

(1) The OP's NFC RFID Controller Module

(2) SunFounder Rpi PN532 NFC Module Tutorial

(3) Libnfc NFC Library

(4) Libnfc Configuration Manual

(5) Libnfc Main Page

(6) Libnfc: configuration

(7) Libnfc: nfc-list

(8) MIFARE Card

Appendices

Appendix A - Installing libnfc 1.7.1

Appendix B - Reading a tag

Appendix C - NFC Reader Tested

Appendix D - My NFC readers and tags

Appendix E - PN532 NFC reader V3 Wiring

Appendix F - SPI configuration for testing PN532 using libnfc 1.1.7

Source https://stackoverflow.com/questions/60819793

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install libnfc

You may need to grant permissions to your user to drive your device. Under GNU/Linux systems, if you use udev, you could use the provided udev rules. e.g. under Debian, Ubuntu, etc. Under FreeBSD, if you use devd, there is also a rules file: contrib/devd/pn53x.conf.

Support

To report a bug, visit https://github.com/nfc-tools/libnfc/issues and fill out a bug report form. If you have questions, remarks, we encourage you to post this in the developers community: http://www.libnfc.org/community.

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