leodj - Network

OH: "Oh, ist das ein Lautsprecher?"OH2: "Naja, das ist ein Sehrlautsprecher."(Es war ein Bild einer...

OH: "Oh, ist das ein Lautsprecher?"
OH2: "Naja, das ist ein Sehrlautsprecher."
(Es war ein Bild einer Luftschutzsirene)

#mseleaks #cfhnleaks

OH: "Gibt's eigentlich auch Geliersalz?"OH2: "Schon mal was von Sülze gehört?"#selfnetwgleaks

OH: "Gibt's eigentlich auch Geliersalz?"
OH2: "Schon mal was von Sülze gehört?"

#selfnetwgleaks

OH: "Also Fasnet Vereine sind ja schon eigentlich Dorf-Furries"#selfnetwgleaks

OH: "Also Fasnet Vereine sind ja schon eigentlich Dorf-Furries"

#selfnetwgleaks

Wer geht heute noch alles so auf die #embeddedworld?

Wer geht heute noch alles so auf die #embeddedworld?

Yesterday, the parts finally arrived \o/So I went straight to assembly.It took me around 2-3h of placing parts, reflowing, reworking...

Yesterday, the parts finally arrived \o/
So I went straight to assembly.

It took me around 2-3h of placing parts, reflowing, reworking (surprisingly few joints) and soldering the THT parts.

I quickly tested the board. No shorts, all voltage rails look good and the DCDC controller tries to do something (not sure if I intended it to).

All good signs for a future bringup!

Here's a 50x timelapse of the assembly:

(20x video in higher quality: https://youtu.be/SjXzcEe4PfE )

#usbpdpsu

PCBs have arrived \o/Still waiting for parts tho ^^"(And of course, they're smaller than I thought, and I had already expected...

PCBs have arrived \o/
Still waiting for parts tho ^^"
(And of course, they're smaller than I thought, and I had already expected that)

I also like how you can see the individual layers in the bigger plated holes.

#usbpdpsu

Ordered the PCBs and (almost all of) the components for #usbpdpsu \o/Also put a few details on the projects Github repo:...

Ordered the PCBs and (almost all of) the components for #usbpdpsu \o/

Also put a few details on the projects Github repo: https://github.com/LeoDJ/USB-C_PD_PSU

Oops, all vias :DThe routing of the bottom half is done.Also, I double checked many things and did so many small tweaks over the last few...

Oops, all vias :D

The routing of the bottom half is done.

Also, I double checked many things and did so many small tweaks over the last few days too.
(Component values, resistor values, rough voltage ripple simulations, etc.)

I've populated the respective shopping carts and after sleeping a night over it, I'll hopefully order the PCBs and components tomorrow ^^

#usbpdpsu #pcb #kicad

Sooo, almost done with my first attempt of layouting the first half of the board.All connections have been made while hopefully keeping all...

Sooo, almost done with my first attempt of layouting the first half of the board.

All connections have been made while hopefully keeping all the layout recommendations and constraints in mind.

Still need to have a second look at it after getting some sleep and also add all the thermal and stitching vias.
Then it's off to layouting the "UI" lower half of the board.

#usbpdpsu

I also want to be able to control the board stand-alone.So I had already planned a user interface daughter-board of some kind. But because...

I also want to be able to control the board stand-alone.
So I had already planned a user interface daughter-board of some kind.
But because there is no room for a board-to-board connector, I simply expanded the board to the bottom for now.

This approach allows me to place two XT30 sockets too, so that's nice.

This UI board is peak feature-creep tho xD
Probably just my brain procrastinating actually starting the power layout xP

#usbpdpsu

OH: "Hast du zu viel Lachs gesoffen?"#cfhnleaks

OH: "Hast du zu viel Lachs gesoffen?"
#cfhnleaks

Currently dabbling in some #PowerElectronics design.If all goes to plan, it should be a 5-60V ~15A bidirectional buck-boost converter,...

Currently dabbling in some #PowerElectronics design.
If all goes to plan, it should be a 5-60V ~15A bidirectional buck-boost converter, hopefully supporting USB-PD EPR.
And if that wasn't challenging enough, I decided to try to squeeze it into 50x25mm ^^"

The thermal design will get interesting, I'm currently planning for many thermal vias and a big heat sink on the underside.

After some days of component selection and tetris-ing, I'll soon be ready for the actual routing ^^"

#usbpdpsu

OH: "Die aalener Zahnpasta war ganz gut"#mseleaks #cfhnleaks

OH: "Die aalener Zahnpasta war ganz gut"
#mseleaks #cfhnleaks

OH: "Wenn man einen Hund als Größenreferenz nimmt, ist das dann eigentlich ein Messshiba?"#mseleaks #cfhnleaks

OH: "Wenn man einen Hund als Größenreferenz nimmt, ist das dann eigentlich ein Messshiba?"

#mseleaks #cfhnleaks

- Helped to organize our own chaos event in Heilbronn, the #DHCP24- Had a great time at many events, met many good friends, made a few more...

- Helped to organize our own chaos event in Heilbronn, the #DHCP24
- Had a great time at many events, met many good friends, made a few more and generally had a really great time last year.

(See #GoodOf2023 for last year's projects. Also, you should be able to get more details about the mentioned projects under the linked hashtags or simply shoot me a message ^w^)

#GoodOf2024 3/3

- Built the (shitposty) #USB2Speakon adapter- Designed a new revision of the #SSD1303 breakout PCB- Developed a small ESP-NOW telemetry and...

- Built the (shitposty) #USB2Speakon adapter
- Designed a new revision of the #SSD1303 breakout PCB
- Developed a small ESP-NOW telemetry and logging framework for a model rocket #jfzhn project
- Finished reverse engineering the #startergenerator. It spins now! \o/
- Built #TheLAEMPAN together with @techbeard and @Toble_Miner (RGB replacement PCBs for IKEA LAMPANs, more info coming sometime™)

#GoodOf2024 2/3

Because I like the concept, here's this years #GoodOf2024. A concise list of projects I did in 2024, to actually convince my brain that...

Because I like the concept, here's this years #GoodOf2024. A concise list of projects I did in 2024, to actually convince my brain that yes, I actually achieved something.

- Helped @patagona with his ISDT #CM1620 reverse engineering
- Built the #Framework #DongleHiderPlus expansion card
- Implemented MQTT data logging for the #ePocketBike stats
- Started development of an #Arduino compatible Ethernet stack for the cheap #CH32V208 MCUs (built-in 10M PHY)

🧵 1/3

Did a small #38c3 project site entry about the...

Did a small #38c3 project site entry about the #PDBrick.

https://events.ccc.de/congress/2024/hub/de/so/project/pdbrick-public-usb-c-charger/

Come find it at the #Unterland assembly (https://38c3.c3nav.de/l/c:0:109.41:153.84/ )

Does anyone know a good cross platform language / framework (for Android, Windows, Linux), that allows me good low-level USB access (vendor...

Does anyone know a good cross platform language / framework (for Android, Windows, Linux), that allows me good low-level USB access (vendor control transfers) and UVC streaming of the same device?
Ideally without needing to write too much platform-dependent code and offering a semi-unified GUI.

(I've probably asked this already, but the project came up again)

The illusion of choice.

The illusion of choice.