niavy, to Nintendo
@niavy@masto.bike avatar

Tiens, je me pose une question...
Est-ce qu'on peut brancher une manette de N64 sur une 🤔 ?

Si ça passe, ça en fait une super console retrogaming à transporter partout !!!! Y a retroarch et l'« Emulation Station » intégrés au hack "Project Eris"...

olimex, to random
@olimex@mastodon.social avatar
thomas, to Samsung German
@thomas@metalhead.club avatar

Samsung Bar Plus 256 GB Stick vs. Kingston DataTraveler SE9 512 GB.

Beide sind relativ schnell, schlüsselbundtauglich und haben ein Gehäuse aus Metall (ohne Deckel).

Der Samsung kommt an meinen Schlüsselbund wegen der höheren Leserate. Der andere an den TV.

cc @earthling42

Edent, to random
@Edent@mastodon.social avatar

🆕 blog! “Gadget Review: KAIWEETS KTI-W01 Thermal Imaging Camera”
★★★★⯪

The good folks at Kaiweets have sent me their KTI-W01 Thermal Camera to review. You can use coupon code TEB15 for an exclusive 15% discount. Let's get this unboxed and working! Demo Photos The photos are stored as JPGs which can be read by any normal graphics program. Th…

👀 Read more: https://shkspr.mobi/blog/2024/04/gadget-review-kaiweets-kti-w01-thermal-imaging-camera/

-c

membook, to Meme
@membook@rigcz.club avatar
lpwaterhouse, to random
@lpwaterhouse@ioc.exchange avatar

I'm thinking about setting up a rule that triggers some actions when a given device is removed. For that I'd like a minimal device/token, think "only vendorid and productid", no actual functionality (which could fail and cause issues, etc.). Does anyone have a source for something like that? It's obviously ridiculously niche and not at all cost-effective to manufacture...

fell, to linux
@fell@ma.fellr.net avatar

Today was a bad day for Linux Gaming, at least for me.

  1. I wanted to play DCS: World with head teacking like always
  2. My system stopped recognising my Oculus Rift CV1 sensors, throwing all sorts of USB errors in dmesg
  3. I switched to the linux-lts kernel, which caused even more problems with the GPU. The graphical environment never showed up.
  4. Back on the regular linux kernel, I settled for a phone strapped to my head for head tracking.
  5. After two hours of gameplay, KWin crashed and failed to restore my open applications including the game.

I'm done for tonight. 😩

fell,
@fell@ma.fellr.net avatar

OMFG. You won't believe this.

So, I was diagnosing a weird webcam issue for days and days. I've been using a Oculus Rift Sensor for head tracking for a while now and it suddenly stopped working. It's basically just a USB webcam. I tried several different kernel versions and even some from last year with no luck. I dug into the code of the uvcvideo driver, I tried setting quirks, nothing helped. I was obsessed with this issue.

Long story short: I disconnected my computer's front panel and everything worked.

The front panel must be faulty which must've tripped the USB controller in such a particular way that it kept working fine but was unable to recognise newly plugged devices and sent garbage to the kernel.

What the actual heck. USB is so weird. Do you have any USB stories like this?

Edent, to linux
@Edent@mastodon.social avatar

🆕 blog! “Review: ACS ACR1251T-E2 USB Token NFC Reader II”
★★★★☆

Recap - I want to build an NFC reader expansion card for the FrameWork laptop. So I've bought a couple of components. This is the ACR1251T-E2 - it's a USB pen-drive sized NFC reader with a side-out USB-A plug. Costs about £40. There's a recessed green LED which flashes to let you know that it …

👀 Read more: https://shkspr.mobi/blog/2024/04/review-acs-acr1251t-e2-usb-token-nfc-reader-ii/

blog, to linux
@blog@shkspr.mobi avatar

Review: ACS ACR1251T-E2 USB Token NFC Reader II
https://shkspr.mobi/blog/2024/04/review-acs-acr1251t-e2-usb-token-nfc-reader-ii/

Recap - I want to build an NFC reader expansion card for the FrameWork laptop. So I've bought a couple of components.

This is the ACR1251T-E2 - it's a USB pen-drive sized NFC reader with a side-out USB-A plug. Costs about £40.

USB thumb drive plugged into a computer.

There's a recessed green LED which flashes to let you know that it is working. It doesn't beep or vibrate when it detects an NFC token. It is a little bit tricky finding the antenna as the internal circuitry slides down the plastic housing - as can be seen in these internal photos

There's a lanyard hole at the end, and a plastic clip so you can attach it to things.

Linux support is flawless. Running lsusb shows 072f:224f Advanced Card Systems, Ltd ACR1251 CL Reader PICC

And running pcsc_scan gives the same information: 0: ACS ACR1251 CL Reader [ACR1251 CL Reader PICC] 00 00

Sadly, it wasn't detected by libnfc 1.8.0 ☹

Using the FIDO2 HID Bridge I was able to use my NFC Ring to log in to various websites.

It's a solid enough unit. The plastic housing is sturdy and not easily damaged. You can't get in to the shell without a spludger.

The only downsides are that it uses USB-A - we're in the C era now! - and that the sliding mechanism obscures the antenna position. But, if you want to carry a discreet USB stick with you for NFC purposes, there's nothing better.

https://shkspr.mobi/blog/2024/04/review-acs-acr1251t-e2-usb-token-nfc-reader-ii/

wyri, to LEGO
@wyri@haxim.us avatar

Both my wife and I have a set with a light kit hooked up to our 's. So that when our PC's are on the light kit in the hooked up set is on. Due to the motherboard during the ports those sets are hooked into are always supplying power. As a result they would always be turned on. So used with information from a presence sensor, and information from the the PC's are connected to to determine if they are on. When they are off the NIC speed is

image/png

Edent, to random
@Edent@mastodon.social avatar

OK, what useful and passive gadgets do you know of?

For (boring) reasons, I need a solid-unit socket doubler like the one pictured. All the ones I can find also have integrated USB ports.

This is going to live behind a cupboard with pretty restricted access.

What can I plug in to make use of two USB sockets?

Suggestions gratefully received.

lovisix, to random French
@lovisix@social.zdx.fr avatar

@pb

Dis moi, comment est-ce que tu obtient le rendement d'un panneau solaire USB. Je viens de recevoir le mien et je l'interroge.



Edent, to random
@Edent@mastodon.social avatar

🆕 blog! “Thoughts on building an NFC reader for the Framework laptop”

The Framework laptop has several little slots which can be used be used to expand the functionality of the laptop. They convert the internal USB-C ports into a different sort of port. For example, Framework sells an official HDMI card and Ethernet card: But the community have bu…

👀 Read more: https://shkspr.mobi/blog/2024/03/thoughts-on-building-an-nfc-reader-for-the-framework-laptop/

-c

blog, to random
@blog@shkspr.mobi avatar

Thoughts on building an NFC reader for the Framework laptop
https://shkspr.mobi/blog/2024/03/thoughts-on-building-an-nfc-reader-for-the-framework-laptop/

The Framework laptop has several little slots which can be used be used to expand the functionality of the laptop. They convert the internal USB-C ports into a different sort of port.

For example, Framework sells an official HDMI card and Ethernet card:

Two small plastic units. Both have a USB-C plug on one end. One terminates in an HDMI connector, the other in an RJ45 connector.

But the community have built their own SD card expansion pack as well as 3D printed snack drawers:

https://community.frame.work/t/the-snack-drawer-store-now-made-with-real-snacks/43101

Brilliant!

I have an NFC-only authentication token which I want to use when I log in with my laptop. I currently have a USB-C NFC reader which I could use, but it is a bit big and bulky.

Is it possible to fit an U2F capable NFC reader into a FrameWork expansion slot?

Size of expansion cards

This was a bit tricky to find. Based on this GitHub page, I think the maximum internal dimensions of a circuit board are about 26mm x 29.7mm. Tight!

A schematic of a circuit.

According to this video from Framework about the cards shows the maximum size of the physical cards.

Screenshot showing 38mm x 30mm x 7mm.

All the cards use a USB-C connector which sits proud of the card itself.

Potential Hardware

First up is this tiny NFC reader.
A small plastic square with a USB jack on the top.
It is designed for phones, and costs about a fiver. The dimensions look like it would might fit if the plastic shell were removed. But the description says:

Output 4/7 bytes of chip serial number, UID only

So no good for doing U2F. But it does at least show that reading an NFC card ought to be possible in a small form factor.

There are component USB-C readers
A small circuit board with both USB-A and C connectors.

That one would easily fit - but the description says it is for reading only. So I don't think it can send the cryptographic challenges necessary.

Then there's the ACM1252U-Z2 - Small NFC Reader Module which costs about £60.

Small circuit board.

It is a much more capable reader. It uses micro-USB rather than USB-C, which isn't insurmountable using a flexible male-male cable. What about the dimensions?

Schematic of a circuit board.

Certainly thin enough! But about twice as long as we need. Could we chop off the end? What's on the other side of that empty space?

Circuit board with large antenna.

Ah! A honking great antenna. If it could be bent at 90°, it would "only" stick up 2.5cm. Which would be ugly, but not disastrous.

Then there is the ACR122T which is in thumb-drive format.

A thumb drive with a retractable USB-A jack and a bulbous end.

That might work. The antenna is probably in the bulbous end. The official schematics don't give much clue.

Technical drawing showing the dimensions.

But if we look in the FCC Database there are some !

Circuit board laying next to a tape measure.

Width of circuit board being measured.

Ignoring the USB jack, the board is about 50mm long. That would leave about 2cm sticking out of the side of the laptop. Which isn't too bad. The width is within what we need. There's even an updated version with a slightly different spec.

I could buy an A-to-C converter which would add unwanted extra length. I wonder how hard it is to unsolder the connector and mount a USB-C one?
A USB-C plug on a pre-populated breakout board.

This video makes it look relatively simple.

But, given the weirdness with resistors, it might be easier to use an OTG Shim.

https://thepihut.com/products/usb-c-otg-converter-shim

I could rip that apart and solder it on to the board. Or perhaps just solder on a USB-C OTG board. Maybe?

I guess it is time to buy some components and try not to break them! If you have any advice or suggestions, please let me know!

https://shkspr.mobi/blog/2024/03/thoughts-on-building-an-nfc-reader-for-the-framework-laptop/

rasterweb, to InitialD
@rasterweb@mastodon.social avatar

I'm still proud of this "Three Button Tradeshow Video Player Controller" I got done in a week without knowing everything...

➡️ https://rasterweb.net/raster/2022/11/28/three-button-tradeshow-video-player-controller/

Edent, to Electronics
@Edent@mastodon.social avatar

Anyone know where I can buy one of these USB dongles?

I have a device with a USB Micro socket. I want to plug in to a computer with a USB-C port.

I can find the cable version of this OTG adapter. But I'm struggling to find a small, solid component.

matt, to diy
@matt@knight.fyi avatar

Can anyone help? I’m looking for something that electrically behaves like a regular wall wart - 120Vac (I’m in the US) input, and 5V USB-A female output.

But, rather than it plugging into a receptacle, I want screw terminals for the AC input, similar to a bunch of the devices - Basic, Mini, etc.

I have a bunch of places where I have AC wires available but need to power an ESP device. Wiring in a receptacle just for a single wall wart seems excessive.

scruss, to random
@scruss@xoxo.zone avatar

Whee! #MicroPython on #RaspberryPiPico just got #USB device support!

It's very preliminary, and only in the nightly builds so far

https://docs.micropython.org/en/latest/library/machine.USBDevice.html#class-usbdevice-usb-device-driver

drajt, to ArtificialIntelligence
@drajt@fosstodon.org avatar

In the market for a 4K@60Hz and USB3 4-port . My current KVM works but doesn't do 4K or .

Any suggestions for non stupid amounts?

schenklklopfer, to random German
@schenklklopfer@chaos.social avatar

Gibt es so etwas wie die QNAP TR-004 auch in gut?

Also ein 4-bay externes , das Strom und Lüfter hat und das auf -C übersetzt?
Bei voller SCSI Kompatibilität versteht sich. Also und die ganzen anderen Steuerbefehle etc.

Und dabei keinen Schnickschnack wie RAID etc. kann.
Einfach nur Plain die Devices durchmappen bei voller Geschwindigkeit dieser.

Ich finde nur dubiose Produkte aus Fernost mit miesen Bewertungen.

Gibt es so etwas?

:ReplyOK: :BoostOK:

floe, to linux
@floe@hci.social avatar

Dear fedifolks, I'm looking for someone who has experience with driver development, specifically for devices.

There's a years-old regression in my sur40 video driver and I just can't seem to get it fixed 😡

Any help, hints, documentation pointers, or simply reposts much appreciated!

arda, (edited ) to kicad
@arda@micro.arda.pw avatar

Just open-sourced my @kicad Project on @github Dummifier:

https://github.com/ardakilic/dummifier

This enables USB-C to C connection for non USB-C compatible devices.

There are times where your device with USB-C connector refuses to work with your C-C cable. With this, now you can utilize them.

This is my very first PCB design attempt, so please don't go hard on me 😊

I also want to thank @ozkan for his extended help on this project. Without him I couldn't put this together.

arda,
@arda@micro.arda.pw avatar

The case designs of Dummifier is done after all revisions, all thanks to Ender Piyale and Kazim Kaba from MechIstanbul. They are now being printed!

First batch, 50 units!

quick timelapse of printing of a case of a usb dongle, called dummifier.

arda,
@arda@micro.arda.pw avatar

Aaaand here's the final product 🥁 :

Dummifier v1.0: 🎉

The very first USB converter thingy that helps you when your modern USB-C cables don't work for your device to charge and data.

Born out of rage after burning yet another device of mine, but it's designed out of love😆

This is my very first @kicad project, so please don't go hard on me 😊

Here's the project, hosted on GitHub:

https://github.com/ardakilic/dummifier

video/mp4

arda, to kicad
@arda@micro.arda.pw avatar

Installed Kicad for a personal project of mine. This is the very first time I'm making a schematic from scratch. Let's see how it'll go 🤓

arda,
@arda@micro.arda.pw avatar

I've built some, all work flawlessly!

56K resistors on the male port are not needed at all for this to work, if the female port, if your target device is not compliant ( https://www.usb.org/sites/default/files/USB%20Type-C%20Spec%20R2.0%20-%20August%202019.pdf , page 38 ), otherwise if you solder both 5.1k and 56k, it'll fail to negotiate.

Data lines work as well!

I've also tested using a powerbank, it charged the whole day with 5v1a, PCB is not heated.

Finally! Damn I'm happy with the outcome😌

image/jpeg
image/jpeg

wyri, to Ubiquiti
@wyri@haxim.us avatar

First part of a new long term home project coming in. An PoE+ switch to power a small cluster built using nodes. Going to blog about every step once it has been completed. But it is going to be a few quarters long project doing bit by bit

wyri,
@wyri@haxim.us avatar

Started working on the cable gutter for all the #networking and #light (#USB) cables. Started with the patch panel on the left (home office) side.

Outside view of cables coming out heading towards the home office switch.

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