Mäh W.

@maehw@chaos.social
358 Followers
732 Following
3.5K Posts
👨‍💻 I am interested in wired & radio communication, DSP, (embedded) software dev & engineering, FOSS, reverse engineering, IT security, space, programmable and non-programmable bricks, old and new computer technology, robots, machine embroidery & other things. Living in 🇩🇪. Speaking 🇩🇪/🇬🇧/💻 and understanding a little bit of 🇫🇷.
I had some cool conversations in the #Chat64 yesterday. Plug and play chatroom cartridge for the #C64, #Atari8bit and #ZXSpectrum. Really neat project. Video coming soon(ish)! #RetroComputing #VintageComputing
Die Schule hat die Raumaufteilung für die Zeugnisausgabe geschickt. Als EXCEL 3 Spalten, 35 Zeilen, warum?

Not Japan-related, but since we all need a distraction from The Horrors, Takaya Suzuki points out a study that examined 408 sleeping cats and found the majority (65%) curl leftwards.

I'm not sure how useful this information is, but...it's yours now.

#japan #unseenjapan

Ikea begins offering balcony solar kits

Swedish furniture retailer Ikea is selling plug-in solar kits in Germany, with storage-inclusive systems starting at €1,229 ($1,425) and reaching €2,800 for versions featuring four 520 W panels. The kits are designed for residential self-consumption and vary by capacity and configuration.
#ikea #Solar #energy #germany
https://www.pv-magazine.com/2025/06/25/ikea-begins-offering-balcony-solar-kits/

Ikea begins offering balcony solar kits

Swedish furniture retailer Ikea is selling plug-in solar kits in Germany, with storage-inclusive systems starting at €1,229 ($1,425) and reaching €2,800 for versions featuring four 520 W panels. The kits are designed for residential self-consumption and vary by capacity and configuration.

pv magazine International
Git es hier Rollenspieler*innen aus der Gegend von Donauwörth? #fedipower #pnpde #penandpaper #rollenspiel #Donauwörth
#Marchintosh may be over, but the #GlobalTalk shenanigans continue…
Energie: Mehr als 33.000 neue Balkonkraftwerke in Bayern

Hier finden Sie Informationen zu dem Thema „Energie“. Lesen Sie jetzt „Mehr als 33.000 neue Balkonkraftwerke in Bayern“.

DIE ZEIT
Energie: Mehr Balkonkraftwerke - Mittelfeldplatz im Ländervergleich

Hier finden Sie Informationen zu dem Thema „Energie“. Lesen Sie jetzt „Mehr Balkonkraftwerke - Mittelfeldplatz im Ländervergleich“.

DIE ZEIT

It's running from onboard battery now! I'm not going to button it all the way back up until after some testing, but it works. I'm letting it run a Mastodon mode which will auto-update every ten minutes, with a GoPro on time lapse to see just how long it lasts. This project is getting *very* close to done.

...unless I decide to add a power switch.

...and I still need to make the video.

edit: Thanks for all the heroes that chimed in. In meantime, I got help from entity that shall not be named, and currently have something fast enough. And I have great human experts on line, with patches to test. Thanks again! :-)

Can you program GPUs and do you want to become a HERO? #linuxphone
community needs your help.

We are trying record video, and have most pieces working, but one is
missing: fast enough debayering. That means about 23MB/sec on #librem5.

Debayering is not hard; camera images have subpixels split on two
lines, which need to be corrected. They also use different color
representation, but that's fixable by some table lookup and two matrix
multiplies.

Librem 5 has Vivante GPU, 4 in-order CPU cores and 3GB RAM. My feeling
is that it should be fast enough for that. If task is for some reason
impossible, that would be good to know, too.

Image data looks like this

RGRGRG...
xBxBxB...
.........
.........

Task is to turn that into usual rgbrgb.... format. rgb = RGB * color
matrix, with table lookups for better quality. I can fix that once I
get an example.

I'm looking for example code (#pinephone would work, too), reasons it
can not be done... and boosts if you have friends that can program
GPUs. #gpu #opensource
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@Natasha_Jay My photo of the real thing...