nfc | : nut_and_bolt : Safe Rust bindings to the libnfc library | Wrapper library

I am developing a web page (2075.mooo.com, (it is in Catalan)) where teachers control students' arrivals with an NFC card in an Arduino.

The thing is that I save students' data on .txt files, but Chrome saves those to its cache, and I have to constantly remove the cache files. Is there a way to not let Chrome do that or use another strategy instead of .txt files? Because I cannot say to all teachers and students to remove their chrome cache.

Thanks.

after buying a Yubikey 5 NFC for technical interest (firmware 5.2.7) and setting up FIDO2 authentication where possible, I ran into the problem that I could no longer connect to my GitLab server via SmartGit because the second factor is not requested and therefore I can't connect to the server.

I then decided to deal with it on Windows 10 via Git Bash and SSH. Unfortunately, the documentation here assumes a lot of prior knowledge and I am an absolute beginner on the subject. In the meantime I managed to connect to the server with Git Bash and SSH using a locally generated SSH certificate.

Now I would like to use the Yubikey instead of the certificate stored locally on the computer. Unfortunately, all instructions (e.g. this one https://docs.github.com/en/github/authenticating-to-github/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent#generating-a-new-ssh-key-for-a-hardware-security-key) lead to the same error message for me:

I'm trying to perform joins in SQLite on Hebrew words including vowel points and cantillation marks and it appears that the sources being joined built the components in different orders, such that the final strings/words appear identical on the screen but fail to match when they should. I'm pretty sure all sources are UTF-8.

I don't see a built in method of unicode normalization in SQLite, which would be the easiest solution; but found this link of Tcl Unicode but it looks a bit old using Tcl 8.3 and Unicode 1.0. Is this the most up-to-date method of normalizing unicode in Tcl and is it appropriate for Hebrew?

If Tcl doesn't have a viable method for Hebrew, is there a preferred scripting language for handling Hebrew that could be used to generate normalized strings for joining? I'm using Manjaro Linux but am a bit of a novice at most of this.

I'm capable enough with JavaScript, browser extensions, and the SQLite C API to pass the data from C to the browser to be normalized and back again to be stored in the database; but I figured there is likely a better method. I refer to the browser because I assume that they area kept most up to date for obvious reasons.

Thank you for any guidance you may be able to provide.

I used the following code in attempt to make the procedure provided by @DonalFellows a SQLite function such that it was close to not bringing the data into Tcl. I'm not sure how SQLite functions really work in that respect but that is why I tried it. I used the foreach loop solely to print some indication that the query was running and progressing because it took about an hour to complete.

However, that's probably pretty good for my ten-year old machine and the fact that it ran on 1) the Hebrew with vowel points, 2) with vowel points and cantillation marks and 3) the Septuagint translation of the Hebrew for all thirty-nine books of the Old Testament, and then two different manuscripts of Koine Greek for all twenty-seven books of the New Testament in that hour.

I still have to run the normalization on the other two sources to know how effective this is overall; however, after running it on this one which is the most involved of the three, I ran the joins again and the number of matches nearly doubled.

What I want to achieve is that when you press a Button, an application-type payload is written to an NFC to open a specific app specifying the app's package. I have looked at some examples of NFC writing but I only find plaintext writings and not of this type. How could it be achieved?

I am developing an Android NFC application.

This application can scan an NFC tag (here I have an NXP NTAG 5 boost tag, which is an NFC Forum Type 5 tag).

From the UID, I already know how to decode the IC manufacturer using this document, which is the second byte.

For now, I'd like to decode the IC type, like NXP's TagInfo application does, to find out if the scanned tag is more of a NTAG 5 boost or an NTAG I2C plus for example.

Here is an image of what the NXP TagInfo application displays:

Do you know where I can find the IC type register so I can decode this part of the UID?

I am trying to send some commands to a Terminal through UART, so in order for the MSP430 to know which command he got, I wrote some if-conditions in case cREC_BUFFER contains a certain word, the microcontroller should controller it then, for example if the string cREC_BUFFER contains the word "ENDE" at the end, he should go into the if condition inside. The problem that I am facing, is that when I check what the string empty string cREC_BUFFER has after debugging, it contains only the last character "E" of the word "ENDE". Can someone tell me what mistakes I am making here? Thanks a lot for the help in advance! (I reduced the length of the code in here by deleting the content of the other functions, since they do not cause the problem)

I'd like to use Vaadin to create a web app in Java that reads a NFC chip to identify the user and then proceeds with other options, is that possible?

My reason why I don't want to do that in an android app is to decentralize myself to perform the same work for multiple versions and/or different systems

I am currently developing an Android NFC application. This application contains a NavigationDrawer in which I can access 3 different fragments which each correspond to 3 different NFC features.

My goal is that when the onNewIntent method is called, so when the NFC tag is detected, I update the UI with the information in the tag.

At first, the update of the UI is done synchronously but the idea is to have something asynchronous by using coroutines in the future.

The problem is simply that the UI does not update when the onNewIntent function is called, can you help me?

MainActivity:

I am developing an Android NFC application. This application can scan an NFC tag (here I have an NXP NTAG 5 boost tag, which is an NFC Forum Type 5 tag).

Since the UID of the NFC-V tag is reversed, my goal is to display the (re)reversed UID of the NFC tag, where each byte is separated by two dots.

Below is the method I use to do this. It reverses the UID well and converts it to hexadecimal well but I can't figure out how to insert a ":" separator every other character.