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submitted 1 week ago by cm0002@lemdro.id to c/memes@sopuli.xyz
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[-] solidheron@sh.itjust.works 5 points 1 week ago

I like how ever capacitor expect c1 is useless. R3 isn't connected.

The design acts like it there a common ground instead of insulation.

also the trace patterns don't look like they're conductive

[-] Aceticon@lemmy.dbzer0.com 5 points 1 week ago* (last edited 1 week ago)

FYI, the actual circuit properly designed is stupidly simple:

  • The 5V and Ground power lines come in from USB on dedicated pins
  • Since that's a USB-C connector you need 2x resistors for it CC lines (they let the USB Host on the other side know that something is connected to it and wants power of a certain maximum current, and to figure out the orientation of the cable since it can be plugged in two orientations)
  • To light the LED you need the actual LED and a resistor that limits the current that goes to the LED (since LEDs themselves don't limit it and without external current limitation they'll just light up very brightly and then release some "magic smoke" and stop working)

That's it.

Now, assuming R3 and R4 are properly connect CC line resistors (though WHY THE FUCK are the two lines of R3 routed on the other side of the board!!?), the only two other things needed are R1 and D1, nothing else.

Instead, there are way too many extra components, most notably this thing on the middle, supposedly a microchip (judging by the "U" code, can't see the actual writting in the device), maybe a voltage regulator but what would be the point!?

Worse, all 3 legs of that U1 device are wired together. If we're really really lucky, they go nowhere. Otherwise at least one ends up connected to a Ground line (ultimatelly coming from USB) and the other to a power (most likely the 5V from USB) - in other words, it's a short circuit of the power from USB. Not, just not good, but actually a seriously bad "I've never touched electronics in my life" mistake: there is literally no topology where the 3 pins of a 3-pin component are wired together like that, since electrically that's the same as not having it there at all (so even if connected to something else than 5V + GND, at best that component would never do anything). This is like something you figure out in the first hour of learning Electronics.

This shit is not just a little bad, it's incredibly bad and probably a danger to connect to anything over USB.

[-] kinkles@sh.itjust.works 4 points 1 week ago

This is kind of a neat novelty thing I guess but I would have made sure it was functional before printing it

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[-] ygurin@lemmy.world 4 points 1 week ago

Like Will Smith eating spaghetti in the early days

[-] username_1@programming.dev 3 points 1 week ago

The guy is an idiot. I can understand trying to use LLM to make an electronic scheme, but sending the result to manufacturer without checking is a symptom of imbecility.

[-] Windex007@lemmy.world 4 points 1 week ago

I'd argue this has incredible artistic value. And I think that was the point.

[-] Rhaedas@fedia.io 4 points 1 week ago

Hell, both Gemini and Claude have done well for me in throwing some code together for simple apps, but I still looked it over before running it. I try to do that for even human-made open source code, although at least in principle, if it's been up a while, others have at least tried it and given feedback.

I'm sure this is just a joke or a proof of the issue; you'd have to look at the PDF or whatever it gives and see that something is way off.

And for the record, the best code that I've gotten from an LLM has been the first few runs of an idea, one that was thoroughly explained in the prompt. If you put together a vague prompt and continue to add to it, it will get worse quickly, with the LLM even changing parts that were perfectly fine. Maybe turning the temperature down, if possible, will help with that randomness, but it's always better to keep sessions short and precise.

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[-] randomname@lemmy.org 3 points 1 week ago

Push AI button, don’t check, complain about AI, problem is human

[-] RamenJunkie@midwest.social 3 points 1 week ago

C2 also looks useless. Itnlooks like the trace goes in and out on the same side.

[-] ryannathans@aussie.zone 4 points 1 week ago

All three IC pins are shorted too lol

[-] solidheron@sh.itjust.works 1 points 1 week ago

Yeah the ai assumed that the other side of c2 was negative/ground trace and not insulation

[-] solidheron@sh.itjust.works 2 points 1 week ago

First thing I noticed is the type c port is backwards

[-] fubarx@lemmy.world 2 points 1 week ago

Nothing a little bodge-wiring and a Pi compute-module can't fix.

[-] Quexotic@infosec.pub 2 points 1 week ago

AI is, in the end, designed to subjugate us further. It's intention and utilization is innately corrupt. That said, it's important to understand how it works. This is badly enough done that it reflects more on the user than the tool.

[-] db2@lemmy.world 1 points 1 week ago

Wow, he's using those new invisible inductors!

Live stream plugging it in to your computer, whoever you are. And then in to your phone and then your router.

[-] Dultas@lemmy.world 1 points 1 week ago

Am I missing it? Or is there not even an LED to light up?

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[-] domusaltera@piefed.social 1 points 1 week ago

(Switches is it on) Boom, time machine!

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this post was submitted on 15 Apr 2026
584 points (99.0% liked)

Memes

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