Category Archives: Anything

Unsorted stuff. Regular blog posts.

Mental Exercise: SVG Language Interpreter

(AI translated) It all starts with a small nonsense: I decided to put a USB port logo on a 3D printed product. I couldn’t quickly find any STL file (for free or download without registration). So I thought to myself—well, … Continue reading

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XRF analyser

Unfortunately, January was completely empty. A bit of fiddling here, a bit of fiddling there. Some FPGA experiments with soft processors, some uninteresting repairs, some computers, and some programming. Nothing that could really interest readers. Maybe this unfinished repair will … Continue reading

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Windows ghosts devices

(AI translated) If you happen to be involved in USB device design and frequently connect unsuccessful experiments, Windows secretly accumulates unnecessary information. Later, when connecting a “Generic” printer, there’s an issue – it’s unclear which port works: Ghosts Only one … Continue reading

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2022 is here!

(AI translated) Well, it’s New Year again. Probably, 2022 in a row since some event. Or 5782. Or 1443. Or Reiwa 4. Or maybe 7530? Or maybe 4720. For me, it’s probably about the 50th number… So, the number doesn’t … Continue reading

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My Disk and Data

(AI translated) Yesterday, I wanted to open an old file and pfff…. A quick analysis showed that the disk is dying, although SMART says everything is fine. Shit. But it’s a good opportunity to talk about how my disk farm … Continue reading

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AVR103: Graphics module VFD GU140×16

(AI translated) Lithuanian airports disposed of some equipment, and there were devices with VFD screens (the devices themselves were specific, with very strange software). At least I got the VFD screens: Noritake Itron GU112x16G-7806A V3. I think the software is … Continue reading

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LM2596* modules from China

(AI translated) For my latest collection exhibit, I decided to upgrade the power supply – to create something like the LM2596 from an overclocked 7805… Before the postal service went crazy, I bought the cheapest PCBs with counterfeit LM2596ADJ from … Continue reading

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RIFA capacitor failure

(AI translated) Anyone somewhat involved with old electronics will eventually encounter RIFA capacitors and their tendency to catch fire. I finally experienced it myself – a peculiar device was working, and I had to walk the dog. When I got … Continue reading

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My 484 enemies

I have 484 enemies… Solder balls, 0.55mm diameter. Just testing my first 4 layer PCB with some second hand FPGA chips. I am using old solder paste to build new balls… but with bad result. Two pins are missing (from … Continue reading

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Forbidden NEMA repair

(AI translated) Somewhere, I mentioned that I have a photolithographic (UV-curing resin) printer. But I never mentioned that when I first bought that printer, my relatives decided to move it to another place without my knowledge because it smelled very … Continue reading

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