lethalbit

lethalbit, 1 day ago to random

I don't see many KiCad projects with detailed notes in the board files or schematic, which is kinda sad because it's a great way to keep notes for reference and important design descriptions.

My KiCad schematics and board files are absolutely littered with notes, with things from calculations for things to why things are done they way they are.

I wish more people would do it, makes things easier on everyone.

lethalbit, 9 days ago to random

Has anyone used OpenEMS to calculate trace impedance profiles from a PCB stackup before?

I'm looking around for decent and fast 2d field solvers for that kinda thing but outside of like 4 HUGE and expensive software suites there really isn't anything for the at home catgirl

lethalbit, 9 days ago to random

Suddenly I have the need to LaTeX math notation rendering in KiCad's eeschema / pcbnew text fields >.>

lethalbit, 10 days ago to random

Something that probably only I would find useful, but would be nice in KiCad is the ability to assign a nested sheet a schematic symbol, and have the pins match up to the sheet pins.

Would be nice for a few things i'm bapping at.

lethalbit, 11 days ago to random

Unable to focus so I spent a little bit and made some KiCad footprints for the @NGIZero hexagons.

You can find them on github in my KiCad libraries

https://github.com/lethalbit/aki-eda/blob/main/kicad/lib/lethalbit-graphics.pretty/NGI0-Hex.kicad_mod

https://github.com/lethalbit/aki-eda/blob/main/kicad/lib/lethalbit-graphics.pretty/NGI0-Hex-Alt.kicad_mod

lethalbit, 20 days ago to random

Spiral bound notebooks, like the ones with the big spiral on the top, common in sketch books, is a huge pain in the ass trying to draw all the way to the edge of the paper.

My hand always ends up bumping the spiral and jolting my lines >:(

lethalbit, 22 days ago to random

wake up babe, nix for lesbians just dropped

lethalbit, 25 days ago to random

I need me a logic analyzer that has like, 1024 channels,

lethalbit, 25 days ago to random

Look at this little princess, not a care in the world, the little baby

Annie, the grey tabby looking into the camera spreading her paw
Annie, the grey tabby, looking off to the side with her paws tucked away neatly looking like a proper little girl

lethalbit, 26 days ago to random

Dear application developers, please please please stop throwing garbage into ~ we have .cache/.config/.local for a good reason, I don't need your garbage polluting my home directory making things a huge pain, thanks.

lethalbit, 1 month ago to random

So, it seems like IDC68 for internal SCSI connections was a common thing?

But as far as I can tell only the IDC50 header was ever actually standardized for internal unshielded connections (believe me, I check)

I wonder if they took the existing external HD68 or VHDCI68 pinouts and just used those, i've not checked that bit, but I suspect they did.

lethalbit, 1 month ago to random

I fixed my cohost bot, logicbot to allow for more than one output and also fixed the bug that was causing the netlists to be reduced to pure AOI netlists, so now we have things like muxes, and XOR gates and all that good stuff,

https://cohost.org/logic-bot/post/5748772-w-d-a-b

lethalbit, 1 month ago to random

Okay okay, so this made Lina grimace when I was joking about it, but.

So, you know how you can't really do a live update into a fully new kernel, because the structure and memory layout changes, but.

What if we first setup a lookaside buffer that we could /serialize/ the internal kernel structures into and write a small replacement stub.

lethalbit, 1 month ago to random

Who doesn't love to wiggle internal bits of things that you really shouldn't be touching :v

lethalbit, 1 month ago to random

ADHD is currently really kicking my ass, I'm just fidgety and can't focus on anything, and just aaaaaaaaaaa

lethalbit, 1 month ago to random

Imagine binutils/gcc giving you a definitive list of supported target triples :v

lethalbit, 1 month ago to random

Annie, plz

Annie flopped over, less on the sketchbook now but still in the way, she is looking adorable and innocent and just wants attention,

lethalbit, 1 month ago to random

I want you all to observe the galaxy brain that is this cable connection on the Keysight/Agilent 82357B

The inside of the 82347B, showing the connector being just a captive mini-usb B connector plugging into a slot on the board and held in by the injection molded casing.

lethalbit, 1 month ago to random

deeply embedded firmware always makes me kinda itchy,

Like, do /you/ know what the small ARM core buried deep inside your GPU die running firmware off a baked in mask-rom is /actually/ doing?

Or what about the small core inside your HDD or SSD?

Yeah, makes me itchy,

lethalbit, 1 month ago to random

Debating if it would be worth the trouble to put Squishy through OSHW certification or not, hmm.

lethalbit, 1 month ago to random

OHOHOH I have something very /very/ very important to share

lethalbit, 1 month ago to random

To the person on ebay selling the old acoustic coupler for 1K USD and saying it's "RARE!", you're part of the problem,

lethalbit, 1 month ago to random

It sure would be cool if I could get a Keithley 2400 for under 3K T~T

lethalbit, 1 month ago to random

They say that Debian is the Linux distribution for lesbians, but most lesbians I know use either Gentoo, Arch LInux, or NixOS :v

lethalbit, 1 month ago to random

testpoints go brrr

this whole area of the board has been an adventure (yes I know some arrows are missing, i'm working on it :v)