hennichodernich

@hennichodernich@radiosocial.de

Electronics tinkerer, DC4HP, Dr.-Ing. ET/IT, Ex-PostDoc, multi-instrument dilettante, cornucopia of superfluous knowledge, Xennial, husband, father. He/him.

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tschapajew, to random German
@tschapajew@metalhead.club avatar

Warum featured der jetzt in seinem Radio-Programm Einblick? Ich glaube, ich bin im falschen Film.

hennichodernich,

@33dBm @Kuttenfunker @dj3ei @tschapajew @byteborg @cryptkiddie Ich habe außerdem den Eindruck, manche Notfunker wünschten sich den Zusammenbruch der Zivilisation mit Bürgerkrieg geradezu herbei.

hennichodernich,

@dj3ei @DL7TNY @33dBm @Kuttenfunker @tschapajew @byteborg @cryptkiddie Ich bezog mich eher auf die Sorte Mensch, die mit Warnweste und Trillerpfeife als Bürgerwehr durch ihren Stadtteil patroullieren will. Von so einem habe ich mal die Aussage gehört, dass strenggenommen ja auch eine geladene Schusswaffe zur Notfunkausrüstung gehören müsste.

SmudgeTheInsultCat, to random
@SmudgeTheInsultCat@mas.to avatar
hennichodernich,

@SmudgeTheInsultCat FFS, no, for the hundredth time: Hedy didn't make WiFi, she invented FHSS, which isn't used by WiFi, but by Bluetooth.

hennichodernich, to random German

So I finally caved and decided to get a Glasgow. But of course I build it myself, as I don't want to miss the fun of reflow BGA soldering.
If Mouser had finished picking my order in time I couldn't have started this weekend, but unfortunately FedEx doesn't deliver on Saturdays.

hennichodernich,

Lets see how HASL performs in reflow soldering. It is known for causing problems with QFNs with exposed pads, but the BGA should come out ok.
I will brush up the QFNs' pads with the iron afterwards anyway.

hennichodernich,

@timonsku At work we had an issue with a QFN16, where only 1 of 3 prototype boards worked. But I guess the reason was too much paste on the exposed pad, so it lifted the package.

santiago, to random
@santiago@masto.lema.org avatar

Funny how this restaurant’s decorative pattern reminds me of Tetris and — oh Good Lord.

The same pattern cropped differently absolutely looks like a Svastika

hennichodernich,

@santiago But it's a counter-clockwise one.

tubetime, to random
@tubetime@mastodon.social avatar

got a new mini-project: this is the AMTRADE "The Real HD-Drive" which is a PC floppy drive with this board on the back enabling an Amiga to read high density floppy disks (1.75MB).

hennichodernich,

@tubetime As "fartkontrol" is Danish, not German it's "den fartkontrol".

LaF0rge, to Palm
@LaF0rge@chaos.social avatar

Rescued yet another old smartphone (Palm Treo) whose rubery plastic has become sticky/goo-ey (de-polymerization) by using an ultrasonic bath with Tickopur TR14, a chemical intended for removing flux residue from circuit boards

back panel of a Palm Treo whose rubber coating has estensive de-polymerisation (became goo-ey)
back-panels of Palm Treo after removing de-polymerized goo-ey coating using Tickopur TR14 in an ultrasonic bath

hennichodernich,

@LaF0rge I found limonene-based detergent to work very well. https://x.com/hennichodernich/status/1043841772097597441?s=20

azonenberg, to random
@azonenberg@ioc.exchange avatar

Benchtop organizational idea - has anyone done this before?

Little 3D printed plastic feet with a threaded hex standoff press-fit into it. Attach the foot to your bench with command strips or double sided tape, then screw DUT into it.

When you need to move the board to solder to it etc, just remove the screws, lift it off, then put it back in when you're done.

Board is held firmly in place without needing to tape it down by the corners like I do now.

Good idea? Bad? Any practical experience?

Probably gonna try and throw something together in solvespace this afternoon and get a local friend to print it for me.

hennichodernich,

@azonenberg At work we use bakelite board with holes drilled into it.

azonenberg, to random
@azonenberg@ioc.exchange avatar

Anyone have tricks for nondestructive unmating of Molex PicoBlade connectors? I can't get them to release without a ton of force and/or poking with a small screwdriver. And doing that has broken two (thankfully both cable side) so far.

Am I missing something obvious technique wise, or a retention mechanism? As far as I can tell they're just friction fit.

hennichodernich,

@azonenberg Fingernails?

DerSchulze, to fedibikes_de German
@DerSchulze@elbmatsch.de avatar

Wisst ihr was uncool ist, wenn man in die Bremse greift und es passiert, nun ja, gar nix....
Hab ich jetzt erstmal gefixt, scheinbar war aus irgendeinem Grund Luft im Kreislauf. @fedibikes_de

Werner Moped GIF

hennichodernich,

@DerSchulze @fedibikes_de Zum Glück gibt's doch immer noch die Rücktrittbremse.

hennichodernich,

@DerSchulze @fedibikes_de Dann fahre ich anscheinend nur unordentliche Fahrräder, Shimano Nexus 7 FTW!

hennichodernich,

@DerSchulze @fedibikes_de Und eines Tages, eines Tages werde ich mir die Alfine 8 kaufen...

hennichodernich,

@heluecht @fedibikes_de @DerSchulze Selbst schuld, wer ein Rad mit Kettenschaltung fährt. 😉

hennichodernich,

@heluecht @fedibikes_de @DerSchulze Ich besitze kein Pedelec und kann das daher nicht beurteilen.

NanoRaptor, to random
@NanoRaptor@bitbang.social avatar

Which way do floppy drives spin in the southern hemisphere?

hennichodernich,

@NanoRaptor That's a question for @kiwa

azonenberg, to random
@azonenberg@ioc.exchange avatar

Parts for the BaseT1 passive tap came in! There's a few more SMAs and some pin headers (nothing super exciting) and a lot of parts for other future projects.

But this one is a bit more interesting, let's have a look! Mini-Circuits ADCB-20-82+ dual directional coupler. 1-800 MHz, 20 dB IL.

Since it's a dual directional coupler it gives you taps in both the forward and reverse direction. I may respin my BaseT passive tap around this as well, since it's so much smaller than the one I used there.

From the top at low mag, not a whole lot to see. Just a white box with some markings.

hennichodernich,

@azonenberg the connectors have been standardized by the IEC, but the industry calls the protocol "Single Pair Ethernet" (SPE), maybe that's why you haven't found them. https://www.harting.com/DE/de/single-pair-ethernet

kiwa, to random
@kiwa@bitbang.social avatar

Maybe 2024 will be the year I do something with the wildcard 88 card

The card itself, it's most of an XT computer on a memory sized card

hennichodernich,

@kiwa whoa, whoa, whoa, you have one? They're extremely sought after!

hennichodernich,

@kiwa Too bad Sergey removed the files for his matching mainboard from his website: https://www.malinov.com/sergeys-projects/

wikinaut, to fedibikes_berlin German
@wikinaut@berlin.social avatar

Deutschlandweite für Wissing, Schreiner & Co. zum Gedenken und im Sinne von
am 11.02.2024

mit aktivierter CriticalMaps-App @criticalmaps
Signal um 13:00 MET (1200Z)

cc @fedibikes_de @fedibikes_berlin @RespectCyclists @CCitiesOrg @OpenBikeSensor

Boost & tröt with full power.
🐘 Elephants, blow your horns!

hennichodernich,

@SoilnRock @wikinaut @AppleWoi @criticalmaps @fedibikes_de @fedibikes_berlin @RespectCyclists @CCitiesOrg @OpenBikeSensor @janboehm Gleich fängt wieder die Diskussion an, ob Sarkasmus ableistisch ist und deshalb weg muss.

DerSchulze, to hamburg German
@DerSchulze@elbmatsch.de avatar

Zwischen und scheint die Veloroute 9 ertüchtigt zu werden, der Weg ist voll gesperrt. Hat da jemand mehr Infos zu? @fedibikes_de

hennichodernich,

@DC4DD @DerSchulze @fedibikes_de *Chleudert

azonenberg, to random
@azonenberg@ioc.exchange avatar

100/1000baseT1 to baseT media converter schematic done and review complete (although if anyone else wants to have a look, the sch is at https://www.antikernel.net/temp/baset1-media-converter.pdf).

181 components, pretty small compared to most of my recent designs that are pushing well above 500.

Starting layout now, should be pretty straightforward.

hennichodernich,

@azonenberg I didn't know you can just cross connect 2 PHY chips to get a media converter. Is there no runtime parametrization needed?

hennichodernich,

@azonenberg Ok, it seems I missed the STM32 in the schematic. 😳

azonenberg, to random
@azonenberg@ioc.exchange avatar

Making good progress on the UHD bridge to ngscopeclient.

Control plane SCPI commands are defined and the GUI is all hooked up and can reconfigure the SDR.

Only thing left is to implement waveform streaming which shouldn't take long as I already have streaming to file working.

hennichodernich,

@funkylab @azonenberg it's also featured in Kammeyer's book, however, in German, so I didn't want to quote that here.

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