mastodon 4.6.9Hardware Hacker
does stuff with and for #KiCad
DSGVO-Ultra
Inspired by the magnet-pcb-clamps made by @concretedog@mastodon.social I "created" those PCB standoffs that only use standard parts.
The main reason for a redesign is that I work a lot with hotair, which is not compatible with the 3D-Printed version. They are also lower, making it easier to do rework with a soldering iron without raising ones hand to much.
Materials used
We just fixed the worst bug to ever exist in the #kicad symbol libraries. Clearly a 5/7 CVSS:
One line in C_Small was 13mil instead of 12mil
Nices Schild auf der Mosel Brücke #eh23
Damjan just merged one of my most awaited features in #KiCad
There is now a UI to make simple 3D bodies for parts that don't have a 3D-Model yet.
It can work on the Body outline or the courtyard, supports multiple materials/rendering styles and automatically add THT pins.
https://gitlab.com/kicad/code/kicad/-/merge_requests/2542
This will not show up in KiCad10 because it changes the file format. In about a year with KiCad11 it will be available in a stable release.
Is there a color-scheme in #FreeCAD that makes it simpler to see which lines in a sketch are selected?
The difference between green and slightly different green is basically invisible.
Asking for future workshops.
I have ordered a new batch of #ReworkCTF pico boards for future workshops. Possibly at #EMFCamp
And as always, JLCPCB fixed one of the intentional mistakes. They did remove the solder mask on both pads of R20. In the design, one of the pads is masked, the challenge is to gently scrape it free and then solder a component down.
The frustrating part is that its exactly the same error as last time. And they just don't understand it.
Have you ever seen DIP switches that look like push buttons? I pulled those from old equipment, they were mounted in sockets.
People of a certain age will have used this thing. Same for me, but I never opened/inspected one until today.
Do you know what this is? As usual, hide your #NameThatWare guess or deduction behind a CW.
Because this is a rather common item per se, the correct solution needs mention what is special about this specimen and where it is commonly used.
Do you also know why it was improved compared to the precious design variant?
#FediKleinAnzeigen I got a box of used PMTs. They were removed from a decommissioned detector.
I do not have matching bases.
If you want to build something with one or more of them, give me a ping. I want to give them away for free[1] to people that make cool stuff.
Since I will be at #GPN and #EMFCamp we can do handover on those events. Or you come to #CCCAC to pick them up.
[1] If you can afford it and want to give some money, please donate that to our hackerspace.
I want to build a fast TDC (TimeToDigital) converter with the #RP2350 using the PIOs.
Turns out this is reasonably simple by doing
wait 1 pin 2
mov y timeout_value
waitloop:
jmp pin hitreceived
jmp y-- waitloop
...
The downside is that it takes two clock cycles for each count in the y register. But I want a really fast TDC (2ns resolution with a 500MHz clock).
Anyone got an idea how to do faster count + capture on this chip?
This is what 20 years of coolant do to M12 connectors.
Together with a coworker I exchanged 6 of them today with new cables and connectors. It only took about the whole day, because it was nearly impossible to access the whole cable run. Lots of zip ties were cut by only feeling their location. A endoscope camera would have been handy.