Enjoying do-it-yourself electronics, pattern formation, and programming. Home-made hardware projects, games and water kefir. Cheese and physics. Amateur radio, call sign OH1HSN. Author of Make: Radio https://www.makershed.com/products/make-radio-print
@mrak I recently found QuickWeather, which is exactly this. I like it so far.
It's both on f-droid https://f-droid.org/packages/com.ominous.quickweather/ and in the play store.
It can use data from two sources, https://open-meteo.com/ is easier to set up because it doesn't require an account/API key.
@gilesgoat @mntmn I've opened CT scans (also for 3D printing) with Fiji / imageJ . I don't remember the details, except that my data was a 3D array of density, and I extracted an iso- surface for further processing. The imageJ docs say it can read some DICOM: https://imagej.net/formats/dicom
@hkz I remembered this thread about e-reader repair: https://retro.social/@ifixcoinops/113688851590613928
Ha, sometimes I love the internet.
Seems this is a known issue and apparently fixed in this archive.org version. Hope it will transfer via the Greaseweazle then...
Read this from Ben Santer (very famous climate scientist for those who don’t know) about what NCAR means and what dismantling it will do.
Six toroids done, 13 to go! I'm building a QMX+ transceiver from QRP Labs. Going well so far, and the soldering got better when I changed to a larger tip on the iron. This PCB seems to conduct heat away from the joint very quickly.
#radio #electronics #qmxplus
ICYMI, Last Friday I released the, pay as you feel, #SOURCE magazine issue 3, with @FreeCAD @kicad @inkscape and @oshwassociation tutorials. Between them we can get anyone up and running with #opensource tools for #openhardware design! Links to the issue are in this pinned toot!
https://mastodon.social/@concretedog/115309437399447429
#oshw #openhardwaremonth #pcb #cad
@pmdj @kris_of_pnictogen Perhaps Make: Electronics by Charles Platt? It starts from the basics, and uses experiments to introduce new things. The experiments are often circuits assembled on breadboard, it sounds like you already might have the equipment. I fact-checked this book and test-built some of the circuits, and I like it a lot.
https://www.makershed.com/collections/electronics/products/make-electronics-3rd-edition-print
Very nice article about saving academic data, digital sovereignty, and some criticism re lack of transparency:
https://delta.tudelft.nl/en/article/saving-academic-data-is-easier-than-you-think-and-you-can-do-it-too
Featuring @frepa314 & @lavaeolus
#SafeguardingResearch
About US research data under threat and how everyone can contribute to saving it - @lavaeolus and me were interviewed in the TU Delft paper Delta: https://delta.tudelft.nl/en/article/saving-academic-data-is-easier-than-you-think-and-you-can-do-it-too mostly regarding our parts in the Safeguarding Research and Culture initiative at https://safeguar.de
#TUDelft #SafeguardingResearch #SciOp
I tried Valvo EF95 tubes, and also Chinese 6J1 tubes. Both kinds work. With 12V anode voltage the EF95 felt louder and nicer, increasing the voltage to 30V made the 6J1 sound good too.
Vacuum tube radio progress: got decent reception of several medium wave AM stations: BBC radio 5, Radio Caroline and a Dutch one. I learned to stay away from switching power supplies, all I tried were so noisy I couldn't hear anything else. With a linear supply the sound is pleasant, but could still be a bit louder. #radio #diyelectronics #vacuumtube
@dasistdaniel I got one from https://www.c64psu.com, and I've been happy with it. They ship from Poland if I remember right.
Keelog supplies also seem to have a good reputation https://www.keelog.com/power-supply
Another thing, modern (flat) TVs often don't like the analog tv signal from a C64, you may have to get an analog-to-HDMI converter too.
Look what my amazing niece gave me for Easter! A “geek lab” diorama complete with Beeb, C64, oscilloscope, and other goodies. She captured the essence of me so well. WOW, talk about spoilt!
Urgent: scraping help needed to preserve all #NOAA data services from catastrophic loss
https://forum.safeguar.de/t/noaa-all-services-urgent/569/2
Update April 5th:
We got everything we can.
The amount of help has been very awesome - we did good 💜
If you think you can help with more than a few TB and/or with additional contacts etc. pp.
Please write an email to contact@safeguar.de
We (@SafeguardingResearch) need urgent help with archiving websites & datasets from NOAA, specifically the stuff on Amazon Web Services (AWS):
https://forum.safeguar.de/t/noaa-all-services-urgent/569
If you can contribute, please consider doing so.
@field94Mop I wish! That would have been a radio expedition in style. But it's the box of the telescoping antenna. I did bring coffee though.
I did my first POTA attempt today, activating Vondelpark in Amsterdam (NL-0166). The batteries for both my radio and laptop lasted longer than me in the quite chilly park. I got 13 QSOs on FT8, using a QDX and a telescoping vertical antenna. I was hoping to find a picnic table, but had to make do with just a bench. Lots of people in the park, two passers-by were curious about the antenna.
@trcwm I see, cool idea!
@trcwm Nice. That looks like a good circuit board for radio experiments! Like the deadbug style but more tidy. Do you recommend them and do you know where to get them?
