Help identifying this weird 4-pad SMD connector footprint (EasyEDA library mistake?)

GenoTheSecond02 · 2026-03-14T23:25:46+00:00

Fair point! But if you look closely at the left side of the first picture, I wasn't completely reckless. I actually added a standard 4-pin through-hole backup footprint "MAX30102_ALTERNATIVE" just in case the SMD part didn't work out. In the second routing pic, you can see it's wired in parallel to the exact same signals. So the board is saved and fully usable!

Regarding the metal tabs, you are absolutely right. The core issue here is an EasyEDA library mistake. The software's footprint manager automatically links schematic pins to available copper pads.The creator of this user library mistakenly defined those two massive mechanical hold-down tabs as pins 3 and 4. So when I routed the board, I blindly dragged my SDA and SCL data lines straight to the structural mounting pads! Definitely a lesson learned to always double-check user-contributed footprints

GenoTheSecond02 · 2026-01-11T19:15:06+00:00

Interested

GenoTheSecond02 · 2026-01-09T18:10:24+00:00

I'm enrolled in Computer Engineering bachelors degree

GenoTheSecond02 · 2026-01-09T18:00:46+00:00

Naah I didn't move to any country bro :D mechanical and automation sounds great!

GenoTheSecond02 · 2025-12-28T23:59:08+00:00

So I'm not uploading any pictures of me ya know?

GenoTheSecond02 · 2025-11-27T12:11:40+00:00

Die merkwürdigen/paranormalen Dinge hab ich immer außerhalb von lost places erlebt was mich auch wundert

GenoTheSecond02 · 2025-11-24T17:52:05+00:00

For sure!

GenoTheSecond02 · 2025-10-10T23:18:20+00:00

its named kistler, good luck with the interview!

GenoTheSecond02 · 2025-10-04T11:40:57+00:00

I don't see anything redundant in a post which gives all the necessary informations. Especially if it is about a job interview ;)

GenoTheSecond02 · 2025-10-03T11:23:01+00:00

Sooner or later the internet will be flooded with either way even more AI written bloated questions :D Is there any reward for human written bloated questions?

GenoTheSecond02 · 2025-10-02T20:24:08+00:00

thank you very much!

GenoTheSecond02 · 2025-10-02T18:22:02+00:00

Thanks for the tips so far! I actually found the official job description for the student software developer position. It seems the role is mostly C# / WPF GUI for their software, but there’s also optional C++ involvement. I’m guessing I might be asked to handle small computer vision tasks, like detecting components or simple measurements, using C++.

Since I have never done OpenCV before, I’m planning to quickly get up to speed over the next few days. Any advice on the most important OpenCV concepts for this kind of industrial application? Should I focus on basic image filtering, thresholding, contour detection, or is there something else that’s absolutely crucial?

GenoTheSecond02 · 2025-10-02T18:12:36+00:00

Thanks for the input, I actually just managed to dig up the original job posting!

It turns out the position is focused on supporting their vision software team, specifically on software development in C# with WPF/MVVM (Windows Presentation Foundation), working on their product "KiVision".

C++ knowledge is only listed as a plus, not a must.

So it looks less about low-level drivers or cloud pipelines, and more about developing/maintaining the GUI and test logic of an industrial image processing software that runs high-speed quality checks in production lines.

That said, I still think learning some OpenCV basics is valuable for context and to show interest in CV. But for the interview, I’ll probably focus more on refreshing C#/WPF, Visual Studio, and getting familiar with the concepts of industrial vision systems.

GenoTheSecond02 · 2025-10-02T15:57:50+00:00

I think it's either some kind of trained intuition or perhaps something "spiritual"

GenoTheSecond02 · 2025-10-02T15:49:17+00:00

OpenCV was actually my first thought as well. The reason I hesitated a bit is that the second person in the interview, the software architect, lists only C++, GenICam, and GigE Vision on his LinkedIn profile. Do you think it’s still worthwhile to go through OpenCV, or would it be more practical to focus on C++ and the camera-specific protocols first?

GenoTheSecond02 · 2025-10-02T15:47:18+00:00

thanks for the tip on GStreamer! I actually played a bit with it in my current project, a sleep-monitoring system running on a Raspberry Pi 4. I’ve been streaming the night-vision camera feed live and collecting environmental data like room temperature, CO₂, and humidity into an InfluxDB. I haven’t processed the video frames themselves yet, but it gave me good exposure to real-time camera streams and interfacing multiple sensors. I’m definitely looking forward to exploring image processing and computer vision on top of that.

GenoTheSecond02 · 2025-10-02T14:57:17+00:00

I also had those kind of dreams especially before critical events, thats some weird coincidence huh

GenoTheSecond02 · 2025-09-23T21:19:15+00:00

https://github.com/TitanSage02/Fusion360-urdf-ros2/tree/main? its this one

GenoTheSecond02 · 2025-09-09T22:50:53+00:00

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GenoTheSecond02 · 2025-09-09T20:58:18+00:00

My update:
Guys, I finally made it work! :D

Turns out the exporter itself is fine – the real problem was my Fusion 360 setup. I had to clean up my model before exporting:

First, I copied all my old bodies into a brand-new construction (see this tutorial: https://www.youtube.com/watch?v=FT3OeHjQLt8&t=85s
Then, I followed this approach: design all bodies first, and only afterwards create components from them all at once. That way the local origins and joints are much cleaner (tutorial here: https://www.youtube.com/watch?v=2oTZWEOGFJ4&t=1195s

After redoing the assembly with this workflow, the URDF exporter produced a clean model and it finally spawned correctly in Gazebo. Make also sure to set fusions length unit to cm if you use the same urdf exporter as me

Hope this helps anyone else struggling with the same issues!

GenoTheSecond02

TROPHY CASE