@jaseg@chaos.social
@jaseg@chaos.social avatar

jaseg

@jaseg@chaos.social

I am doing #electronics, #embedded programming, #python scripting, hardware security and recently some sewing. Pronouns: er/they

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whitequark, to random
@whitequark@mastodon.social avatar

normal device

jaseg,
@jaseg@chaos.social avatar

@Ronflaix These devices are sold for phone or laptop repair for finding short circuits. They dispense colophonium flux as vapor, which condenses on the PCB as a white powder. In any area that's getting hot, that stuff melts and disappears. Basically a cheap and less healthy replacement for a thermal camera.

mntmn, to random
@mntmn@mastodon.social avatar

trying to work with kicad eeschema generated SVG in inkscape is just pure, unadulterated pain

jaseg,
@jaseg@chaos.social avatar

@mntmn I wrote a simple renderer in gerbonara because I didn't like KiCad's output. It's still very work-in-progress though, and might not like KiCad nightly output.

janamarie, to random
@janamarie@chaos.social avatar

Newly assembled boards,, 🥺

Backside of the same PCB in the same location. It shows the fog-artwork on the back as well as various labels, solder joints and connectors. The title of the board says “foxtruder [working title]”
Scenic closeup of a row of leds, two buttons and the front edge of the esp-32. Two big red capacitors are visible, blurring into the soft bokeh. Three green terminal connectors are also blurred, but visible

jaseg,
@jaseg@chaos.social avatar

@janamarie Those Wuerth caps do look really nice 😍

janamarie, to random
@janamarie@chaos.social avatar

Hardware design is actually all about finding capacitors that match your PCB in color.

jaseg,
@jaseg@chaos.social avatar

@janamarie @gkrnours The colored sleeve is just printed heat shrink tubing. You can get custom printed heat shrink tubing for fairly cheap, which you can then either apply on top of the manufacturer's or you could first remove the manufacturer's heat shrink.

k, to random
@k@layer8.space avatar

anyone have experiences with encryptfs?
would love to test it out, reinstall with FDE isn't an option :crywhy:

jaseg,
@jaseg@chaos.social avatar

@k I used it like 15 years ago when it was standard in Ubuntu. IIRC it worked fine. Being FUSE it's not going to be great for I/O performance like compiling software in it, and it's security guarantees are a lot weaker than those of a LUKS volume since IIRC it leaks folder structure and file sizes.

jaseg,
@jaseg@chaos.social avatar

@k you're welcome, good luck!

mia, to random
@mia@void.rehab avatar

With the introduction of Dolby Surround 7.1 in 2010, Sony were eager to put out a full home theater system. One of their early models, the HT-A7.100, included a revolutionary evolution to the standard stereo jack: the 7.1 surround jack, allowing all 8 channels to be sent over one cable.

jaseg,
@jaseg@chaos.social avatar

@mia The 8 ring one could even support VGA

volcan01010, to Electronics
@volcan01010@fosstodon.org avatar

On Friday, I had pan-fried, left over, macaroni cheese for dinner. The START / STOP buttons on my microowave have stopped working, so I couldn't reheat it.

I'm trying to fix the buttons now. They are on a flat plastic panel and seem to have contacts that get better contact when pressed, and I think that they now longer "spring" open again.

Does anyone know how I could fix these?

cc: @ultrazool @ianturton

jaseg,
@jaseg@chaos.social avatar

@volcan01010 Keypads like this are terrible, you're likely to break it even trying to separate the layers. If it's the front foil that has become distorted maybe glueing on an extra piece of a similar material could help it spring back? The only proper fix I can imagine is replacing the whole thing with either a part from another device of the same model or a custom PCB. A custom PCB to replace that thing would probably end up costing around 20$.

scottjenson, to Figma
@scottjenson@social.coop avatar

I just tried a few AI plugins for and they were all bad. This domain might be a great test for . I predict these failings are unlikely to be fixed any time soon:

  • Layout was poor
  • They can't create components
  • Laughably complex object hierarchies (everything was enclosed in a frame)

Of course things will improve, but I expect fixing these deep structural problems are a function of many new constraints, likely beyond what today's LLMs are actually capable of. @simon ?

jaseg,
@jaseg@chaos.social avatar

@scottjenson This problem reminds me of AI-generated printed circuit board layouts. A bunch of companies have been trying to get that one right for years now, but the 2D nature and the topological constraints of the interconnections make it really hard to do with AI.

azonenberg, to random
@azonenberg@ioc.exchange avatar

I think this is next level cursed. But it actually worked.

jaseg,
@jaseg@chaos.social avatar

@azonenberg It does save a bunch of IOs compared to using the FMC. I don't even think it's that cursed.

cccpresser, to random
@cccpresser@chaos.social avatar

If in doubt, use more flux.

the plan is to bring those to future events.

jaseg,
@jaseg@chaos.social avatar

@cccpresser I want one of these, but for flux

jaseg,
@jaseg@chaos.social avatar

@cccpresser Maybe even one of these for especially urgent cases

jaseg, to random
@jaseg@chaos.social avatar

Lol, I decided after not using it for a while I should try FreeCad again. I tried to do a very simple model in it, which needed a thread. Turns out that in 2024 CE, FreeCad somehow still can't do (arbitrary pitch and diameter) threads. How?! I thought this is a CAD tool?! 😬

MattHatton, to random
@MattHatton@aus.social avatar

How to tell, in three words, that you're about to read something that is incredibly stupid.

jaseg,
@jaseg@chaos.social avatar

@MattHatton Does paying a ransomware ransom in bitcoin count? 🤣

ValerieSonh, to firefox
@ValerieSonh@masto.ai avatar

#Firefox starts new data-gathering program https://blog.mozilla.org/en/products/firefox/firefox-search-update/ The article explains how to opt out. "Same" privacy indeed. 😐 #privacy #telemetry

jaseg,
@jaseg@chaos.social avatar

@ValerieSonh I think the data collection that they describe in the article is fine. They're clearly not out to build profiles, and the categorical information that they collect doesn't leak anything relevant.

cccpresser, to Watches
@cccpresser@chaos.social avatar

Go home , you are drunk.

jaseg,
@jaseg@chaos.social avatar

@julialuna @cccpresser That, or going to a shittier board house. Last year, I've had a good experience with elecrow. They seem to care very little and just send whatevery you hand them straight to production.

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