nicolas, to Steamdeck
@nicolas@social.lol avatar

Pro tip: the Steam Deck Dock works great for charging the iPhone 15 and making use of StandBy.

dxzdb, to random
@dxzdb@mastodon.social avatar

This $50 USB tester has been very useful!
https://www.youtube.com/watch?v=CbKCVezzpYA

One “fun” realization that USB-A chargers deliver 5V - period. USB-C doesn't do that blindly since it needs to know what power to deliver. So… the same cable plugged into a A to C adaptor can work fine, but do nothing when plugged into the same device from a Type-C charger 🤯

The FNB58 also shows capability of batteries, compares cables & even shows a tiny oscilloscope trace of voltage, current & data lines.

Bundesregierung, to random German
@Bundesregierung@social.bund.de avatar

Schluss mit dem Kabelsalat: Zum Ende des Jahres wird USB-C das Standard-Ladekabel. Dafür hat der Bundesrat heute den Weg frei gemacht. Übrigens: Ab 2026 auch für Laptops.

blog, (edited ) to videos
@blog@shkspr.mobi avatar

Gadget Review: KAIWEETS KTI-W01 Thermal Imaging Camera
https://shkspr.mobi/blog/2024/04/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. They also contain the thermal metadata which you can extract with specialist tools.

Here's the full photo taken with the camera. It shows the interior of an office with some computer equipment on a shelf.

Infrared photo.

You aren't going to get high-resolution photos out of this - 256x192 is what the thermal sensor provides. That's overlayed on a graphic.

It includes different filters so you can see just the thermals, the real image, or a mix of the two.

A thermal selfie.

Because the optical camera is quite some distance from the thermal camera, it doesn't cope well with close ups - as you can see. Luckily, this can be adjusted in the UI by pressing the up and down keys.

Videos

As well as static shots, it will take video - 240x320 resolution and 25fps - well, ish. It looks a bit jerkier than that to me. But it is good enough to see what's going on.

In this video, I've recorded a bath filling up. Towards the end, I've changed the settings so it shows more of the real-colour video with the heat overlayed.

https://shkspr.mobi/blog/wp-content/uploads/2024/04/bathtub.mp4

Filesize is about 1.5MB per minute - I've recompressed it for upload. I couldn't see any specific thermal metadata in the video.

Linux

Amusingly, it shows up as 1f3a:1000 Allwinner Technology Prestigio PER3464B ebook reader (Mass storage mode). Nevertheless, the 30GB volume was mountable and had an IMGS/ directory full of JPGs.

There is a Windows app, which I was able to run in PlayOnLinux. It offers a few features, such as being able to change the colour scheme of the photo, and pick out specific temperature points.

What's Great

The integrated lens-cap is is a thoughtful touch. As is the hand-strap and included padded case.

The trigger action feels great and is instantly responsive. There are a bunch of menu options if you like to fiddle with things.

Oh, and it is USB-C! So it will take the same charging and data transfer cable as all your other gadgets.

Overall, a nice package.

Downsides

The button layout is a little odd. The buttons feel nice and are responsive. But I would have expected the "Enter" button to be in the centre of the directional buttons.

It is a little slow booting up - but then, this isn't designed for quick action shots.

After taking a photo or a video, it asks if you want to save it every time. That's a little annoying. There's 30GB of storage and photos are only about 300KB - so it should be good for about 100,000 photos.

The videos are recorded without sound. A cheap microphone would make it easy to narrate what's going on in a shot.

Weirdly, the bundled app doesn't work on videos.

There's no expandable storage - the 30GB is plenty, but sometimes it is easier to shove an SD card into a computer.

Finally, there's no mounting point. Other cameras I've tried have a connector so they can be attached to a tripod. This is strictly hand-held only.

Verdict

This costs £200 - £250 depending on whether the algorithm likes you. Astonishingly, that's cheap for a thermal camera of this quality!

If you're into DIY, or you want to check the thermal efficiency of your home, or you just want to see how hot things are - this is a useful bit of kit. It's sturdy and well built. Dragging images and videos off it is a breeze - even if you don't use the official app.

The interface isn't the greatest thing in the world. But all you need to do is point and click. It's the sort of thing that's unexpectedly handy around the house with all sorts of tasks - from checking if the radiators are balanced, to seeing if a hidden plug is spewing heat.

£200ish isn't cheap cheap. But it is cheap enough that most geeks should have something like this. Also worth buying for community groups who want to check for heat leaks in their properties.

If you are happy with the slight user-interface oddities, and don't need a tripod mount, this is an excellent gadget.

Readers of this blog can use coupon code TEB15 for an exclusive 15% discount.

If you're American and would prefer to buy from Amazon.com, get 10% off with code E5W6NW8V until 2024-06-30 https://www.amazon.com/dp/B0CB7Q6J79

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

matdevdug, to logitech
@matdevdug@c.im avatar

It is actually possible that still hasn’t released a unifying adapter dongle for computers in the year 2024? What is the holdup here?

Edent, to random
@Edent@mastodon.social avatar

New to review!

A (massive) thermal imaging camera.

If you have any questions you'd like answering about it, please leave a reply.

I'll upload an unboxing and review later.

Edent,
@Edent@mastodon.social avatar

Here's the review!
https://tube.tchncs.de/w/pWdMVSBksLLBuPa5bkUJ84

It's a thermal camera which lets you take infrared photos and videos.

15% discount with the link in the description.

(Blog post coming this afternoon.)

Edent, to random
@Edent@mastodon.social avatar

I have a monitor with both HDMI and DVI-D inputs.

I have a USB-C hub which only has DisplayPort outputs.

Should I get DP-HDMI or DP-DVI?

Or does it make no difference?

Orb2069, to random
@Orb2069@mastodon.online avatar

"you don't need a USB-C cable. We have a USB-C cable at home."
The USB-C cable at home:

sb, to opensource
@sb@fed.sbcloud.cc avatar

Do YOU have experience designing or circuits? How about implementing I²S audio?

I'd love to chat, and/or work together on an , budget-friendly, and VERY high quality (24bit/192K) 8 channel .

I'm basing the front-end on the incredible differential instrumentation amplifier by . We're talkin' competition into a BB 😎.

I could really use help with the usb implementation.

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/

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.

toni, to chargers
@toni@pancake.place avatar

My old Boostcharge Pro 3-in-1 MagSafe charger died. 💀

Now looking something to replace it.

Any recommendations?

I want MagSafe setup that supports iPhone’s standby mode. And 3-in-1 because I want to keep my phone/watch/airpods charging setup neat.

cassidy, to NintendoSwitch
@cassidy@blaede.family avatar

The Internet is awash with speculation and non-technical answers to this question, so I’ll ask you nerds:

What are the actual technical requirements for a USB-C to HDMI adapter for the Nintendo Switch?

Most forums/comment sections/etc. have people just saying, “well I used this and it worked,” or “I used this and it didn’t,” but there has to be an actual specification that the Switch requires for this… right??

itnewsbot, to logitech
@itnewsbot@schleuss.online avatar

Designing a USB-C Upgrade PCB for the MX Ergo Mouse - As the world of electronic gadgetry made the switch from micro USB to USB-C as the... - https://hackaday.com/2024/03/02/designing-a-usb-c-upgrade-pcb-for-the-mx-ergo-mouse/ -usb

derburch, to diy German
@derburch@swiss.social avatar

AirPods Max mit USB-C? Ken Pillonel machts möglich

Ken Pillonel hat bereits ein iPhone X und ein AirPods Pro-Case mit USB-C ausgestattet. Ken, Schweizer freiberuflicher Hardware-Prototyping-Berater mit Master-Abschluss in Robotik, tüftelt bekanntlich gerne und nimmt sich fleissig neue USB-C-Projekte vor. AirPods Max wurden 2020 eingeführt. Damals wie heute sind diese fantastischen Kopfhör…

Artikel lesen: https://www.iphone-blog.ch/2024/02/29/airpods-max-mit-usb-c-ken-pillonel-machts-moeglich/

terrehbyte, to Steamdeck
@terrehbyte@sakurajima.moe avatar

Just realizing now that the transition from using my Razer Blade Stealth as my laptop to my Steam Deck was partially made seamless thanks to USB-PD!

Am totally able to re-use the same charger and carry on as I did before, just with a big pouch instead a simple laptop in a sleeve.

It's not the original OEM charger since that hardwired cable on that started to fry and fail while I was traveling, but that just goes to show how accessible third-party options are. ✨

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

Schema is going so far so good.

This will be a "USB Dummifier".

I have various USB-C devices that inherit usb-c connector but designers did not give a damn about the USB standards, so only old usb-c to usb-2 cables work, and not usb-c to usb-c cables.

If you plug this in between, it'll complete the missing resistors and (hopefully) allow your device to work with usb-c modern cables.

Even the famous Planck keyboard, which I've used for a long while, has this issue.

arda,
@arda@micro.arda.pw avatar

The schema so far.. Since the USB-C females are reversible by the internal wiring of the connector, I didn't have to worry about the second side. However, for the males, the situation is different. That's why I had to wire the male ends of the connector. This ultimately made it more complex.

By the way, I will open-source this when it finishes 🙏

arda,
@arda@micro.arda.pw avatar

After a little bit tinkering, changing board thickness, adding a rough edge cutting and re-aligning the length of data pins, it's finally starting to look like something 😆

It's going to be 0.8 mm, 2 layers PCB, which you'd use directly like a usb-c extender.

image/png

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

blog, to linux
@blog@shkspr.mobi avatar

Review: An NFC reader/writer with USB-C - ACR1252U-MF
https://shkspr.mobi/blog/2024/02/review-an-nfc-reader-writer-with-usb-c-acr1252u-mf/

I needed to read and write NFC cards on Linux. I only buy USB-C peripherals now, so I found the brilliantly named "ACR1252U-MF" which appears to be the only USB-C reader on the market. Total cost was about £35 on eBay.

It's a cheap and light plastic box with a short USB cord. When you plug it in, there's a flashing light which can't be disabled. When it is powered up, or it detects and NFC chip, it makes this weird and scratchy beep:

🔊💾 Download this audio file.

On Linux, it shows up as: 072f:223b Advanced Card Systems, Ltd ACR1252 Dual Reader

To get it working, install PCSC Tools and the PCSC Daemon:

sudo apt install pcsc-tools pcscd

To start the daemon:

service pcscd start

Running pcsc_scan detected the reader as two readers - PICC and SAM

Using reader plug'n play mechanismScanning present readers...0: ACS ACR1252 1S CL Reader [ACR1252 Dual Reader PICC] 00 001: ACS ACR1252 1S CL Reader [ACR1252 Dual Reader SAM] 01 00

Putting tokens on and off the reader showed them being detected and removed.

Despite my best efforts, I was unable to get this working with .

nfc-list uses libnfc 1.8.0No NFC device found.

For reading and writing basic NDEF tags, I used Wakdev's NFC tools, I was also able to use various Python scripts like PCSC NDEF

It also worked with a FIDO2 / HID Bridge so I could use an MFA token.

There's lots of documentation about the reader and its API as well as some official ACS Linux tools. In theory it supports firmware update - although none have been released.

It's a cheap and cheerful device. It would be nice if there were a way to stop the flashing LED and crappy buzzer.

https://shkspr.mobi/blog/2024/02/review-an-nfc-reader-writer-with-usb-c-acr1252u-mf/

tomayac, to thinkpad
@tomayac@toot.cafe avatar

📢 New blog post: I finally found out why my Lenovo ThinkVision P27h-20 screen randomly turns off when connected to my MacBook Pro: https://blog.tomayac.com/2024/02/lenovo-p27h-20-randomly-turns-off/. From the "this is the blog post I wish I found" department… 💻🖥️

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