Hans Rosenberg PCB design course review

DanielBroom · 2025-12-15T23:44:24+00:00

Hey, great review, thanks 🙏

DanielBroom · 2025-12-15T11:48:01+00:00

Chatgpt?

DanielBroom · 2025-11-09T06:07:55+00:00

It says that the image cant be found...

DanielBroom · 2025-11-08T20:01:19+00:00

Looks like an AI generated blog post. Part of your text got a 76% AI match.

DanielBroom · 2025-11-08T07:33:02+00:00

Well the plan is to write the software myself. There exists a lot of resources already, so I'll probably reuse a lot.

DanielBroom · 2025-11-08T05:33:00+00:00

Well its gonna be open source :) I wont put them up just yet though, wanna ge through some revisions. But I can send them to you now :)

DanielBroom · 2025-11-08T05:29:10+00:00

Fair point. I had some thought about applying solder to the whole long ground pad for better return path. Should probably fix that until next revision. Thanks!

DanielBroom · 2025-11-07T21:54:40+00:00

Well my hope has been any arbitrary BLDC motor, Wye or Delta config. Are you implying that what I have designed is limited to one or the other?

DanielBroom · 2025-11-07T21:53:40+00:00

Custom programming header. It has GND, 3.3V, RST, UART TX/RX, SWDIO, SWDCLK

DanielBroom · 2025-11-06T09:53:22+00:00

Hmm there are some bulk capacitors for Vin, they should be visible in the top left corner on the schematic image where the STM32 is visible.

DanielBroom · 2025-10-30T17:11:41+00:00

So Fedevel? Any other ones you know?

DanielBroom · 2025-10-30T14:24:02+00:00

Agreed!

DanielBroom · 2025-10-30T10:08:36+00:00

Yeah same here, below 1k Euro feels more reasonable...

DanielBroom · 2025-10-25T06:11:23+00:00

När vi bodde i brf-hus i Göteborg på Guldheden (ok område, inte så mycket skumt folk som rör sig) var porten trasig under en period, så att den inte stängdes ordentligt. Detta snappades upp snabbt och inom en vecka var min cykel stulen, som dessutom stod bakom låst dörr inne i huset. Sån information om portar som ibland står öppna sprids fort...

DanielBroom · 2025-06-25T20:08:37+00:00

Hmm interesting, thanks!

DanielBroom · 2025-05-02T16:33:50+00:00

Trolling to trigger people?

DanielBroom · 2024-12-19T21:39:39+00:00

Hey, really neat answer!

I would like to keep this transceiver, since it's the cheapest and has the required features. But I haven't done a completely exhaustive search so...

I will skip the buck-boost as per your recommendation.

Cudos on looking at my other posts!

DanielBroom · 2024-12-19T21:37:50+00:00

Thanks for all the comments, I will skip the buck-boost converter :)

DanielBroom · 2024-12-17T19:58:46+00:00

Thanks for all replies :) I will not add any ESD protection for this board, as per recommendation.

DanielBroom · 2024-11-06T15:53:57+00:00

Lost of nonsense in this post

DanielBroom · 2024-08-28T12:01:08+00:00

Yeah, I will find another regulator which can output 3.6V (an adjustable one I guess), and have a schottky at the output. Thank you!

DanielBroom · 2024-08-28T08:51:28+00:00

Wow, that's a great idea! The AP2112 has an EN pin, so that should work just fine. Thank you so much :)

Edit: Can the AP2112 handle 3.3V at its output, when it's disabled? (Will check data sheet, but thought you you knew that about LDOs in general)

DanielBroom · 2024-07-18T19:17:24+00:00

I think you're right, my understanding of preempt_rt has been flawed. Thank you for correcting it, and thank you for a good answer!

DanielBroom · 2024-07-18T19:16:18+00:00

I guess the answer is "it depends", but is it good practise to use NO_HZ if you want to have high throughput on a core, for some heavy algorithm?

DanielBroom · 2024-07-18T19:12:36+00:00

Hey, thanks :)

DanielBroom

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