jaseg

I am doing #electronics, #embedded programming, #python scripting, hardware security and recently some sewing.

Email: whatever you like at my domain. I've got a catch-all alias.

Pronouns: er/they

Public Key

npub1cf6khe43y948lrtdp7w5sdvl08tqla027lfquelytmyv66c34w6qgh67h8

NIP-05 Address

jaseg@chaos-social.mostr.pub

Profile Code

nprofile1qqsvyattu6cjz6nl34ksl82gxk0hn4s07h4005swvlj9ajxddvg6hdqpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsgkaj3e

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1cf6khe43y948lrtdp7w5sdvl08tqla027lfquelytmyv66c34w6qgh67h8

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Last Notes

2026-04-19 12:06:26 UTC

I’m really not a fan of linters, and espec of code auto formatters. In a time when AI usage already homogenizes most types of online communication, I really don’t see the value in removing the tiny specks of personal style I express in the way I align arguments across code lines, or in my positioning of comments.

2026-04-03 09:41:09 UTC

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@nprofile…5ve4 frankfurt airport station has a rewe that might be open

2026-03-29 09:25:59 UTC

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@nprofile…thd8 do you need to run the whole OS on the target architecture, or only a single binary?

2026-03-19 17:01:06 UTC

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@nprofile…thd8 does the catgirl benchmark, is the catgirl benchmarked, or both?

2026-03-09 14:50:15 UTC

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gitlab has like three functions I ever want to use, "repo", "merge request" and "issue". Why they are hidden among three dozen useless features I'd never use under multiple levels of headings in a sidebar is beyond me.

2026-03-09 14:48:54 UTC

#gitlab is such a UX/UI shitshow. I was looking where the fuck they hid the issue tracker when re-designing their clusterfuck of an UI this time around. Turns out, issues are now "work items" because clearly the term "issue", used by every single git hosting platform ever, was just too obvious and easy to understand.

2026-03-07 19:55:05 UTC

der chinesische online-retailer joybuy bootstrapped gerade in deutschland sein geschäft und überbrückt die zeit bis sie ihr eigenes logistiknetzwerk aufgebaut haben mit dhl express. ich habe eine bestellung über 140€ aufgegeben, die versandkostenfrei in 6(!) einzelnen paketen zugestellt wurde.

2026-02-21 09:42:21 UTC

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@nprofile…9jea that microscope mount on the monitor arm looks neat! How susceptible is it to vibration?

2026-02-20 09:23:57 UTC

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@nprofile…9jea can you starte manufacturer and model?

2026-02-13 13:49:01 UTC

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the symbol’s outline is wayyy too thick, the VCC and GND pins are in the wrong places, the pins are grouped wrong, and the gate I/Os aren’t aligned properly. I can’t imagine how they came up with this.

2026-02-13 13:45:17 UTC

I just tried out SnapEDA’s new AI thing and it’s such a mess lol. Asked to import a symbol for a 74 series quad XOR gate into the active design, it locked up my computer for about a minute before producing the absolute dogshit in the attached picture. I kind of want them to succeed, but this isn’t even close lol 🤪
https://assets.chaos.social/media_attachments/files/116/063/621/156/632/751/original/73b926090f597bc2.jpeg

2026-02-09 09:31:55 UTC

So an office update broke half of our #altium installations at work. In case you’re having the same issue, we got it fixed by installing ms access redistributable 2016 on the affected workstations. Premium software!

2026-01-25 19:53:00 UTC

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@nprofile…4qfj ich würde allein um verwechselungen zu vermeiden alles auf upc lassen und apc dann per adapter-patchkabel (upc-apc) machen. apc in upc stecken kann mit etwas pech beide faserenden kaputt machen, sollte deshalb eindeutig getrennt sein. und wenns irgendwann wirklich sein muss, ist es mit nem spleißgerät auch nicht schwer, ein upc-ende durch ein apc-pigtail zu ersetzen.

2026-01-22 16:50:24 UTC

This January’s award for the eval board with the witcher’s vibes goes out to the HMC7044 eval board. The chip is a 3GHz integer PLL with 14 phase-adjustable outputs.
#electronics
https://assets.chaos.social/media_attachments/files/115/939/778/340/258/369/original/b327ddf3173da9f2.jpeg

2026-01-20 06:21:34 UTC

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@nprofile…rljr @nprofile…f38c it’s a bit funny that I was able to use that with my german ass name to make it pronounceable there

2026-01-20 05:34:05 UTC

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@nprofile…rljr @nprofile…f38c They are, to the extent that every form that asks for a name has a separate field that asks for how it is read.

2026-01-18 12:09:11 UTC

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@nprofile…wf47 you can just squat one

2026-01-18 11:59:42 UTC

my phone got annoying and pushed me to update to iOS 26. I’ve been using it for about an hour so far, and it’s so bad. It’s ugly, distracting and clunky. I think when your software makes your users turn off several engineer-years worth of features in your accessibility settings within an hour of using it, you messed up.

2026-01-14 07:00:56 UTC

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@nprofile…tm9j “PleaseSeizeAtCustoms Pro Store”

2026-01-14 06:31:13 UTC

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@nprofile…tm9j “JammerPro Store”

2026-01-13 06:36:32 UTC

Is there some place that offers @nprofile…un2n as a paid, hosted service?

2026-01-06 13:04:59 UTC

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Like, if the argument boils down to "I found this talk hard to understand", would you make the same argument if the speaker was a native speaker of say, Chinese? Or if they were a native speaker of an English dialect you find hard to understand such as Texan English, Indian English, or AAVE?

2026-01-06 13:02:57 UTC

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Part of why this feels so wrong to me is that in Germany, there is a stark age gap in English language skill, with older people generally being a lot worse, which gives this argument some ageist energy. Even uglier, in today's less affluent former GDR states, English was a less common subject at school, meaning older people from that area even more likely have poor English skill.

2026-01-06 13:00:34 UTC

Over the last few days, I've seen several people say things to the effect of "at #39c3 person XY should have held their talk in German and relied on @nprofile…pl2f because their English is too bad".
Tbh, I find this attitude fairly repulsive. It has this weird, elitist vibe to it. "Look at me, an educated person, criticizing someone for not having enjoyed the same privileges and being worse at English!"

2025-12-25 11:25:15 UTC

I’m all here for this current trend with chinese-designed gadgets of clear plastic enclosures. This particular example I was able to pick up at a regular electronics retailer over here, and it’s sooo pretty 🤩
Black FR-4 with ENIG under clear solder mask fucking slaps!
https://assets.chaos.social/media_attachments/files/115/779/955/078/739/012/original/3767abce759fa789.jpeg

2025-12-12 14:07:21 UTC

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https://chaos.social/@jaseg/115706974814804542
I'm pretty sure now I can throw almost anything at this piece of code and the result is going to be at least somewhat reasonable.

2025-12-12 13:51:03 UTC

My spiral geometry code in kicoil is getting pretty solid, I think I'll finish up a release this weekend.
#electronics
https://assets.chaos.social/media_attachments/files/115/706/913/233/630/155/original/ac7eaf0af6088060.png
https://assets.chaos.social/media_attachments/files/115/706/913/573/277/794/original/38e7b55cf9e74ebb.png
https://assets.chaos.social/media_attachments/files/115/706/913/771/807/004/original/3b389507eb36021a.png

2025-12-11 14:50:12 UTC

kicoil is learning to layout trapezoidal and other non-circular coils
#electronics
https://assets.chaos.social/media_attachments/files/115/701/484/327/729/051/original/60abf58928f384eb.png
https://assets.chaos.social/media_attachments/files/115/701/484/330/620/860/original/2630b8ba62cacd1d.png
https://assets.chaos.social/media_attachments/files/115/701/484/337/332/984/original/c34b2faa427d2d32.png
https://assets.chaos.social/media_attachments/files/115/701/484/337/424/671/original/2ee93f0892a69dc4.png

2025-12-11 10:39:50 UTC

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* On plugging in monitor, gnome thinks it's connected, the monitor doesn't agree and displays black
* OS and settings window disagree on multi-monitor layout, meaning the mouse cursor doesn't move to the next monitor where it should
* OS monitor layout has huge gaps between monitors in virtual pixel space, meaning you have to move the mouse for like 1 m to get out of one monitor and into the next
(2/2)

2025-12-11 10:37:53 UTC

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Bugs I observed in just the last five minutes:
* Monitor layout state desyncs between OS and applications, leading to windows to still display but become non-interactable
* Settings window is on different monitor, but the monitor isn't receiving signal, so you can't access the settings window to unfuck things
* Display settings confirm/keep settings dialog displays in the corner between three monitors, making most of it invisible outside the three monitor's bounds

2025-12-10 12:11:02 UTC

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@nprofile…ftwc @nprofile…aax0 Yeah, totally. Maybe if you need a ton of inductors of different values you could save some BOM space like this?

2025-12-10 12:06:35 UTC

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@nprofile…ftwc @nprofile…aax0 I think the main limitation using these for something like an SMPS would be that they are coreless and large, and as such they would be a total EMI nightmare if you fed them straight from a FET switching with nice, crisp edges. You could maybe mitigate that and increase inductance with one fo these ferrite shielding sheets you can get for cheap for wireless charger coils.
Besides that, when pushing power, in PCB planar inductors the DC resistance quickly gets annoying.

2025-12-10 12:03:29 UTC

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@nprofile…8x50 Oh, thank you, that's really interesting! google patents has a full PDF:
https://patentimages.storage.googleapis.com/ae/04/6f/e7ed0beb7de377/GB2417088A.pdf
I think this one is similar to the theft prevention things you see in stores. I think this is conceptually more similar to what I've seen referred to as "flux-neutral" coils, where you have an arrangement of multiple side-by-side coils of opposing polarity to either suppress or enhance far-field sensitivity.

2025-12-10 12:01:34 UTC

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@nprofile…aax0 Depends on board area, I'd say about 50 µH in 25 mm diameter and maybe 400 µH in 50 mm diameter. The main limiting factor for large inductances is DC resistance due to the narrow trace width you need to stack many windings.

2025-12-10 11:12:04 UTC

I've got a new #KiCad plugin out in the KiCad plugin manager:
KiCoil generates "twisted" planar inductors. You can make it do one- or two-layer spiral inductors, toroid inductors, and many intermediate, hybrid variants in between spiral and toroid inductors.
These hybrid types have wider traces than a single-layer spiral, but have better high-frequency behavior (parasitic capacitance and self-resonant frequency) compared to two-layer spiral inductors. And they look really pretty!
#electronics
https://assets.chaos.social/media_attachments/files/115/692/143/711/796/347/original/5f296cdcae158268.png
https://assets.chaos.social/media_attachments/files/115/692/144/095/678/823/original/e6665f25298fe821.png

2025-12-02 17:55:14 UTC

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@nprofile…srm6 I think the guy was also doing other measurements, measuring flow and blowing smoke into the airflow

2025-12-02 17:49:08 UTC

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continued:
However, Dr. G. Melvill-Jones suggested that, if the semi-circular canals of the ear were kept steady by holding on to a shaped clamp with the teeth, the confusing sensations would disappear. This was indeed the case, and runs of half an hour at 50 to 70 r.p.m. are now carried out as standard procedure.
[2/2]

2025-12-02 17:48:57 UTC

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The paper has a bunch of utter ridiculousness in it. A bit later, under "3.0 Experimental Techniques", they write:
At the outset, some difficulty was experienced by the observer through loss of orientation after a few minutes’ rotation.
[1/2]

2025-12-02 17:46:52 UTC

This must be one of the the most unhinged workplaces in science, ever. In 1966, Fowler asked how air moves through a centrifugal compressor. To answer this question, he put a guy holding a camera on a spinning chair in the middle of a huge turbine wheel spinning at 70 rpm. Below is the original diagram of the "rig" from their paper. I found this absolute gem of a paper after seeing it described as a "heroic effort" in another, much later book on the subject.
https://doi.org/10.4224/40003753
#science
https://assets.chaos.social/media_attachments/files/115/651/180/242/204/126/original/35d1673858ef1ce4.png
https://assets.chaos.social/media_attachments/files/115/651/180/666/534/207/original/3b1b8c4a1946ed86.png

2025-11-30 15:29:05 UTC

I made myself a very simple rope bag for #climbing
I kind of yolo’ed the design using scraps and leftovers. It’s made from only two, rectangular pieces of fabric. A lightweight ripstop nylon makes an inner bag, and a heavy backpack fabric wraps around to protect the lightweight inner bag during transport. The white belts are sewn as webbing so it can be attached to other bags for carrying, though right now I just put a piece of ribbon on as a handle.
#sewing
https://assets.chaos.social/media_attachments/files/115/639/355/551/563/072/original/bc78d69d4b05b652.jpeg
https://assets.chaos.social/media_attachments/files/115/639/355/825/425/973/original/9de2aea2abe6a712.jpeg
https://assets.chaos.social/media_attachments/files/115/639/356/143/644/421/original/ae03ad0933ec939d.jpeg

2025-11-21 10:04:03 UTC

I’ve found a job starting January. I’ll be working at a place making RF equipment for satellite ground stations 😁

2025-11-14 08:43:14 UTC

Huh, I just found out that Gowin now has a series of FPGAs that claim 2 Gbps LVDS I/O and 12.5 Gbps transceivers. Doesn't seem like anyone stocks their devboards yet though, and their pricing on mouser looks not too dissimilar from xilinx. I wonder if they still support these parts with their own toolchain.

2025-11-05 12:11:24 UTC

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@nprofile…eman that’s honestly not the worst idea. Easily supports ancient devices that don’t do svg properly yet, is natively scalable, and probably even saves some data over anything except svg where you put the entire code into one big chonky path data.

2025-11-04 16:25:41 UTC

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Reply with your guess what this is. I'll post the solution later tonight.

2025-11-04 16:23:22 UTC

#electronics tip of the day: make sure every connector has a lilttle roof up top. Keeps them warm and cozy.
https://assets.chaos.social/media_attachments/files/115/492/339/640/267/326/original/ce321807fecf29e3.jpg

2025-10-29 08:39:02 UTC

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@nprofile…0kd5 That's a valid point, but that's a totally different discussion from what started this thread. Signal using phone numbers to limit account creation has been discussed on the internet a bunch, and is unrelated to whether they're running on AWS or azure.

2025-10-29 08:21:35 UTC

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@nprofile…0kd5 From the point of view of a passive network adversary, using Tor will do little to hide that you're using signal or when you're using it since that will likely be possible to extract just from the timing of the encrypted Tor traffic.

2025-10-29 08:20:36 UTC

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@nprofile…0kd5 To achieve metadata resistance, at the very least you need a constant stream of cover traffic to obscure communication patterns. This cover traffic is also why it's almost never done in mobile applications, it just eats your data plan and drains your battery.

2025-10-29 08:20:31 UTC

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@nprofile…0kd5 I think I misunderstood you. By metadata resistance, I'm referring to a system that doesn't leak information to either the cloud provider nor to a passive network adversary. There are very few systems that achieve this, and Tor for instance isn't actually one of them.

2025-10-29 08:16:36 UTC

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@nprofile…dphr I don't see a reason why they wouldn't be able to just switch to a different cloud provider if they were blocked or kicked out or something. Your contacts and channels aren't threatened anyway since all of that data and the required keys are kept client-side anyway.

2025-10-29 08:12:14 UTC

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@nprofile…0kd5 Since we're talking about signal in comparison to deltachat here, is deltachat even metadata-resistant? I genuinely don't know their design deeply enough.

2025-10-29 08:06:12 UTC

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@nprofile…0kd5 if your target security profile is metadata resistance, you have to do so much more than choose a different cloud provider. Decentralization makes that problem worse, not easier. And funnily enough, once you switch to a metadata resistant protocol, the choice of cloud provider doesn’t matter anymore.
Signal is not locked to any particular provider, and no doubt they’ll be able to switch providers when necessary. It’s just not necessary at this time.

2025-10-29 07:38:40 UTC

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@nprofile…0ux3 By over-reducing your point to “cloud provider bad” you’re circumnavigating a whole informed discussion and effectively spreading fear, uncertainty and doubt to people who don’t understand how signal works at a technical level.

2025-10-29 07:37:48 UTC

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@nprofile…0ux3 they’re poorly substantiated in that they boil down to “large cloud provider bad” without considering why signal chose a large cloud provider, and what they have done to mitigate the centralization. The latter is the interesting bit, since they structured their protocol considering the cloud provider untrusted. This means the provider learns very little about their users, and their main role is providing uptime.

2025-10-29 07:14:03 UTC

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@nprofile…0ux3 I don’t think that spreading poorly substantiated accusations of technical infidelity against signal helps your mission, or anyone else.
I think it’s cool that you’re writing your own messenger software, but please spread the word about it by advertising how it is good, not by trying to push others down who fight for the same causes as you.

2025-10-20 12:16:00 UTC

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@nprofile…zfhc I really love the idea, but I feel like that would *increase* load, not help to decrease it lol

2025-10-20 12:15:09 UTC

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@nprofile…sh0h You're right. I'll see, for now the ~3 lines of nginx config seem to help alright. I'm not personally opposed to my stuff being crawled or used for LLM training, I just don't want them to bring down my poor little server 😅

2025-10-20 12:13:42 UTC

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@nprofile…sh0h I'm giving them a 403 now, which has stopped the bot activity from facebook, claude and openai within ~30 sec. I think a 403 is a good choice here, since it actively tells them to fuck off. They seem to respect that.

2025-10-20 12:12:39 UTC

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On another note, it's kind of fun watching tail -f access.log while posting a link on mastodon ^^

2025-10-20 12:12:19 UTC

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The issue seems to be that these crawlers really are not very smart, and will just exhaustively follow every link on my poor cgit instance. A bunch of these links lead to large files, which then chokes up the server if a dozen bots try it at the same time.

2025-10-20 12:11:23 UTC

Oh my. Just came back from a holiday to find my personal site at https://jaseg.de offline from nginx getting OOM killed. Turns out when it went down, it reveived almost 600 requests a minute, almost all from AI crawlers. The most prominent crawler was facebook's at ~60% of all requests, followed by claude at ~25%.
I'm going to give it one shot blocking the worst offenders using some nginx config, but if this keeps up I'll just have to put at least my git repos behind cloudflare.

2025-10-20 08:08:14 UTC

So I bought some Anker/Soundcore headphones while on holiday. It turns out they had a defect from the factory, one of the ANC presence sensors doesn't work right.
Sadly, as it turns out Anker is a shit company that doesn't honor their warranties. They're happy to sell you products anywhere in the world, but their support says they only process warranty claims where you bought the product.
Kind of ass backwards if you ask me, and I'll personally never buy an Anker/Soundcore/Eufy product again.

2025-10-03 06:02:11 UTC

I’m a little bit amused by this helpful jacket weight/warmth alignment chart I saw at a uniqlo
https://assets.chaos.social/media_attachments/files/115/308/712/948/870/664/original/a9fead473550f3de.jpeg

2025-10-01 11:15:07 UTC

My wife found a spider in our bathroom that is almost pettable size. It seems like it's that time of the year again when they try to find cozy warm spots to spend the winter.

2025-08-01 17:31:32 UTC

FreeCAD and LibreOffice Impress are currentl the two programs I use that most frequently crash or bug out.
FreeCAD crashes at least several times an hour even without me doing anyth crazy. Impress has outline mode, which is haunted.

2025-07-26 14:14:07 UTC

I finally came around to writing up the details behind the CSS-only code listings I use on my blog. These listings wrap on page resize with line continuation markers, show scrollbars past a configurable minimum width, support native text selection without the line numbers being copied, and number lines in plain CSS without any JS involved. Have a look, the post is simultaneously a demo:
https://jaseg.de/blog/css-only-code-blocks/
#css #web #html #ui #ux
https://assets.chaos.social/media_attachments/files/114/919/942/405/066/161/original/cb4e4a7f18473533.png

2025-07-21 10:36:24 UTC

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@nprofile…lhan I get the reason behind it, I think this is a very bad solution since it breaks my everyday workflow in several applications. I think there would easily be a dozen better options to solve this "lost modal dialog" issue.

2025-07-21 09:11:05 UTC

The new modal dialogs in GTK/gnome that are nailed to the parent window's center and can't be used are such unintelligent design. Libreoffice now uses these for the paragraph style editing dialog so now you can't move the dialog anymore to look at the effect of your settings on the actual document. A similar issue happens with the "save as" dialog in many GTK applications. Often you'd want to look at the content of the document to decide on a file name.
#gtk #gnome #ux

2025-07-11 15:17:32 UTC

I have unintentionally built a circuit that can distinguish between two copies of the same PCB manufactured by JLCPCB in the same batch. I kind of wonder what this is picking up on. I suspect fiber weave effects, or minor variations in dielectric thickness.
#electronics

2025-07-07 12:19:54 UTC

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@nprofile…9a3s I think the place to grow that user base is during times of peace while democratic norms are being upheld.

2025-07-07 12:14:45 UTC

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@nprofile…9a3s I’m saying you need both, solid crypto and a large user base. Signal has both.

2025-07-07 11:58:43 UTC

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@nprofile…z5q5 No, not really. Just use signal.
The most basic issue all other attempts at secure messaging have is that they are not in widespread use, unlike signal. Just having something like briar or matrix on your phone is already a strong piece of information in and of itself, especially in police states where the rule of law is only followed when it’s convenient.

2025-07-07 10:48:45 UTC

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Just use signal 😩

2025-07-07 10:48:12 UTC

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Men will literally try to re-invent secure messaging over mesh networks instead of just using signal.

2025-07-07 10:43:56 UTC

Y'all, would anyone with a crypto/distributed systems background like to join me in a brief security/privacy analysis of this thing in a week or two? From a cursory glance it looks a bit like a vibe-coded security disaster. Like, signature verification is optional and seems to fail silently, peer identities aren't actually verified before accepting keys, it's not actually anonymous since it has public, long-term identity keys etc.
https://github.com/jackjackbits/bitchat

2025-06-17 08:44:14 UTC

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@nprofile…h3l7 I agree. Using the superset would quickly lead to large numbers of people seeing a toot that the OT didn’t intend. It’s just weird in that replying to someone else’s post, I have absolutely no idea who or even how many of my followers also follow them. It’s essentially like posting to an IRC or discord channel with a random membership list that you can’t see.

2025-06-17 08:37:24 UTC

TIL that when you reply to a followers-only post on mastodon, the reply will only be visible to the intersection of the original tooter’s followers and the replying tooter’s followers, and to any mentioned tooters. This means the circle of people who can see such a reply is rather small and totally non-obvious to anyone in the thread. IMHO weird UX, though I don’t really have a better idea either.

2025-06-15 21:43:12 UTC

I always thought that "audio on linux" thing was just a meme until my archlinux decided to break its audio output with an update. I managed to fix it by fucking around a bit and manually installing the "pipewire-pulse" package.

2025-06-03 12:01:00 UTC

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@nprofile…8x2j In cost-sensitive applicatoins, in aluminium, fins are easier to make since you can extrude them. Pins require either casting, or milling.

2025-06-03 12:00:20 UTC

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@nprofile…8x2j I think another point for fins is that they have more thermally conductive material overall. I think that when you have air flowing across a pin heatsink, the volume in the "shade" of these pins contributes little, and might as well be filled with thermally conductive material to transport heat to the top.
Another consideration is mechanical stability. Pins have to be pretty chonky to not bend, and to be machineable or moldable, whereas you can make fins much thinner.

2025-04-08 05:42:14 UTC

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@nprofile…dpy5 @nprofile…akft @nprofile…k5uf I want to make a T-shirt with it

2025-04-07 11:06:09 UTC

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@nprofile…k5uf yeah, it kind of combines evangelion, metal band shirt, and tattoo art styles? Or someone is just really into christian symbolism.

2025-04-07 10:42:30 UTC

Holy shit, the PCB design of this new sensor board, called Ophanim, of CERN’s Aegis experiment just fucking slaps. Right now, there don’t seem to be many images of it on the web, but I hope to see more in the future.
#electronics #pcb
https://assets.chaos.social/media_attachments/files/114/296/261/648/442/821/original/bb5fc9ae641a7f14.jpeg

2025-03-19 19:25:12 UTC

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@nprofile…km86 I got something similar to that too, but a retractable variant that works similar to a retractable ballpoint pen because I’m clumsy and I’m scared of these things 😅
This one is made by Transptype/Holtz, but build quality is not that amazing.
https://assets.chaos.social/media_attachments/files/114/190/733/063/220/018/original/b7d1f4cef7538037.jpeg

2025-03-19 18:12:08 UTC

#electronics tool rec of the day: The last time I visited Berlin, I went to modulor and I impulse bought a new cutter knife for my micro soldering work. The knife is made by OLFA, and it’s actually great. The blade is held firmly by the metal shroud, the retraction action is really smooth, and it’s thinner than any other knife I have making it easier to handle under the microscope. I highly recommend it. Here’s a link:
https://www.modulor.de/olfa-cutter-svr-2-fuer-9-mm-klingen.html
https://assets.chaos.social/media_attachments/files/114/190/445/787/104/921/original/93fb72d67e4a8da3.jpeg

2025-03-17 11:27:05 UTC

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@nprofile…h33s I know that at least for kimchi, you’re supposed to use pure, iodine-free salt because the iodine messes with the fermentation bacteria. But there’s only one way to find out for sure!

2025-03-16 10:09:15 UTC

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@nprofile…7n0h I’m specifically looking for point of sale terminals. We’re doing a small study on their hardware security mechanisms.

2025-03-14 17:08:18 UTC

For $reasons, at work I'm currently hunting for retro card terminals, and I stumbled upon this gem of early 2000s product design. I mean, just look at it!
https://assets.chaos.social/media_attachments/files/114/161/872/084/937/131/original/9b8f005468bfae7c.webp

2025-03-10 17:48:14 UTC

We pay these fuckers like a kiloeuro per published paper, and they somehow can't even manage to operate a website serving static PDF files :/
#science
https://assets.chaos.social/media_attachments/files/114/139/385/601/443/935/original/74e050151c8652a6.png

2025-02-28 12:02:17 UTC

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@nprofile…u5ey An interesting follow-up question would be how much of that signal is concentrated in one or a few sources. I can imagine a single large, but noisy PV or wind setup might be enough to inject measurable artifacts into the local grid, and might be a good proxy for the overall grid’s current renewable energy share given the small geographic scale of the UK and the resulting correlation of renewable sources.

2025-02-28 11:59:34 UTC

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@nprofile…u5ey I kind of suspect that the main signal this is picking up is the amount of physical rotating mass versus inverters in generation. The tones that are visible in the low-carbon-intensity periods might be artifacts of the control loops of inverter-based systems emulating intertia.

2025-02-27 14:07:44 UTC

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@nprofile…fejk uwsgi has a minimal example in their docs. Uwsgi is the thing that runs python, imports your script, and calls a function in it once per request. You only need to provide that function.
Have a look here: https://uwsgi-docs.readthedocs.io/en/latest/WSGIquickstart.html

2025-02-27 13:59:31 UTC

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@nprofile…fejk wsgi is pretty much the standard these days. If you just want to handle raw requests yourself, cgi style, you can just use a bare python script with a wsgi runner like uwsgi, which requires no python code beyond a single function definition.

2025-02-26 20:50:14 UTC

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@nprofile…artu if you’re bored enough you could take a slow evening to rewind it onto a new spool

2025-02-26 20:04:35 UTC

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@nprofile…u90j From the first picture, I guess three-phase motor driver because it has a group of two and a group of three high-current, high-voltage pins on the left side. The group of two would be the DC input, the three the output phases.
Additionally, it has some chonky THT power semiconductors in the middle. High-power motor bridges often come in big THT SIL packages. The lower pin group has 5 thick pins with three connected in a similarly, suggesting that’s the out phases.

2025-02-20 12:04:22 UTC

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@nprofile…v3rz also smith charts just look cool in general

2025-02-18 11:30:42 UTC

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@nprofile…vvn7 lol I think your toot just nuked antistat.com off the internet. I think you’re right though - the one @nprofile…v3rz posted is a lot less intense in color than the classic cobalt ones.

2025-02-18 10:52:21 UTC

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@nprofile…v3rz note though that the indicator used in these pink/blue ones is Cobalt (II) chloride which is toxic, carcinogenic and highly water-soluble. So it’s best to keep them out of places where they might get wet or damaged.

2025-02-16 20:33:47 UTC

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@nprofile…hzra 350 C kommt mir sehr hoch vor. Ich benutze selten mehr als 310 - 320 C. Vielleicht ist es hier sinnvoll, auf den Unterschied zwischen klassischen indirekt beheizten Lötkolben (z.B. älteren Weller/Ersa) und modernen direkt beheizten Spitzen (z.B. T12, TS-100, Pinecil) hinzuweisen. In meiner Erfahrung macht der Umstieg auf eine direkt beheizte Spitze einen viel größeren (positiven) Unterscheid als der Umstieg auf bleifreies Lot.

2025-01-24 15:09:31 UTC

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@nprofile…u90j Those vias are giant compared to modern processes. Lots of space between everything. The unterminated bus on the left next to the column of Xilinx CPLDs looks like a bad time for EMC.