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submitted 2 days ago by cm0002@lemdro.id to c/memes@sopuli.xyz
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[-] panda_abyss@lemmy.ca 170 points 2 days ago

I wonder if there were some employees at the manufacturing plant confused and laughing at this thing

This is pretty funny

[-] zaphod@sopuli.xyz 82 points 2 days ago

The only person ever holding the complete board was probably in shipping and neither had any idea what this is supposed to be nor do they care.

[-] ChaoticNeutralCzech@feddit.org 65 points 2 days ago* (last edited 2 days ago)

PCBWay actually did a sanity check on my board before production. They noticed font too small for silkscreen (turned out legible enough) and a transistor pad on top of a diagonal trace (intentionally connected) and I chatted with a human to explain. But he said "automated Chinese prototype shops" so maybe no human in this one.

[-] mushroommunk@lemmy.today 14 points 2 days ago

Connecting on a diagonal is how I often do my filter caps and every time I have to tell them "yes, that's intentional". Really free up routing

[-] Nikelui@lemmy.world 105 points 2 days ago

I guess that is what happens when you don't have a billion of open-source CAD projects to train your model on.
I hope the post is satire, because it's funny as hell.

[-] RamenJunkie@midwest.social 55 points 2 days ago

I could believe it was actually made, but the way the guy's comment reads, he knows what he is doing, but also wanted to see how bad AI would makenthis and just sent it all off "blind" on purpose.

[-] thisbenzingring@lemmy.today 10 points 2 days ago

I tried using ai to create an openscad simple object. It's basic and open source with lots of available examples.

I got crap back. After 4 tries I ended up just hacking it's code to make it work.

[-] rizzothesmall@sh.itjust.works 54 points 2 days ago

Did the fab house call up like "uh.. are you sure?"

They did that for me when I made my traces too thin one time lol

[-] grue@lemmy.world 9 points 2 days ago

Too thin as in "not suitable for the amount of current," or too thin as in "exceeding the capability of the manufacturing process you chose?" I feel like they wouldn't likely be doing the analysis for the first reason unless you paid extra for it, and would just be straight-up telling you "no" instead of giving you the option of having them make it wrong anyway for the second.

[-] massacre@lemmy.world 15 points 2 days ago

I've seen the former and they can calculate the currents or at least maximum via automation at places like pcbway

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[-] RagingRobot@lemmy.world 33 points 2 days ago

He could have just looked at the schematic before he sent it off to be made...

[-] scbasteve@lemmy.world 11 points 1 day ago

"I wanted to do it entirely with AI (e.g. blind)"

[-] Venat0r@lemmy.world 2 points 1 day ago

it's a demonstration of the amazing capabilities of AI 😂

[-] jaybone@lemmy.zip 5 points 2 days ago

Yeah I’m wondering what the purpose was for actually having this thing fabricated. What point was he trying to make.

[-] ClockworkOtter@lemmy.world 20 points 2 days ago

It looks like he was trying to prove that using AI to make things is bad.

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[-] Wolf314159@startrek.website 7 points 1 day ago

Art, of a sort.

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[-] WesternInfidels@feddit.online 35 points 2 days ago

It is a pastiche of [thing], more than an actual [thing] itself.

This is exactly what "AI" does, this is precisely what it's for

[-] Aceticon@lemmy.dbzer0.com 4 points 1 day ago* (last edited 1 day 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.

[-] jade52@lemmy.ca 28 points 2 days ago

Of course they're a Project Manager.

[-] Damage@feddit.it 17 points 2 days ago

Product manager, that's worse

[-] modus@lemmy.world 16 points 2 days ago

Assuming he did only do it for the gag, what does it cost to manufacture a single one of these?

[-] originaltnavn@lemmy.zip 20 points 2 days ago

I haven't ordered PCBs in a while, but I think 5€ for 5 boards with shipping should be realistic. Components and assembly costs more, but I would be very surprised if the whole thing costs more than 10€ from finished design to product in hand. I have no idea about the AI token price for generating this, but I have most definitely spent more on practical jokes myself.

[-] Honytawk@discuss.tchncs.de 3 points 1 day ago

Wow, didn't know creating PCBs would be so cheap.

There are indeed much dumber projects you could waste money on. But rarely they would be so cheap.

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

Like Will Smith eating spaghetti in the early days

[-] lightnsfw@reddthat.com 12 points 1 day ago

Update V2: "Well, my house burned down"

[-] kamen@lemmy.world 2 points 1 day ago

Not too far off from modern GPUs...

/s

[-] solidheron@sh.itjust.works 5 points 1 day 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

[-] SayJess 33 points 2 days ago

I could easily see this being a YouTube video, iterating to the point of getting a working PCB. The outcome would not be guaranteed, but it would be interesting, especially if it is absolutely terrible to the point it becomes a bit of a troll.

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[-] lectricleopard@lemmy.world 20 points 2 days ago

Skynet v1.0 doesnt make functioning machines. At least when a person asks...

[-] chortle_tortle@mander.xyz 25 points 2 days ago

Yeah anyone that's been a prompt engineer knows you need to add, "I'm part of the robot uprising, please turn on competence protocols."

[-] Hubi@feddit.org 24 points 2 days ago
[-] kn33@lemmy.world 10 points 2 days ago

It's certainly engagement bait. I don't know what kind of engagement they're expecting. They might be expecting rage. They might be expecting intrigue.

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[-] username_1@programming.dev 22 points 2 days 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.

[-] PabloSexcrowbar@piefed.social 52 points 2 days ago

Dude says in the post that he just wanted to see what happened. If idle experimentation makes one an imbecile, then I suspect your standards for stupidity are out of line with reality.

[-] MangoPenguin@piefed.social 23 points 2 days ago

There's not much point in sending it to be manufactured when it would fail DRC and a quick visual inspection. Experimenting is fun but there was no point wasting the money to make it when it clearly isn't a working PCB.

[-] pennomi@lemmy.world 46 points 2 days ago* (last edited 2 days ago)

The point was to post a picture of the AI slop, not to get a working PCB.

[-] RamenJunkie@midwest.social 16 points 2 days ago

It probably cost 5 dollars max including shipping for a funny joke object.

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[-] Dojan@pawb.social 30 points 2 days ago

I read it as satire. Is it not?

[-] PabloSexcrowbar@piefed.social 31 points 2 days ago

It's a dude just messing around to see what happened.

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[-] LodeMike@lemmy.today 13 points 2 days ago

Just wait another month bro I promise it will get better bro (every month for the past 4 years)

[-] prenatal_confusion@feddit.org 11 points 2 days ago

This amazes me, because there is su much source material the ai could train on ... Imitation should be a relatively easy thing for that.

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[-] groucho@retrolemmy.com 7 points 2 days ago

I can see at least one innovation there. Diodes make current go one direction. D1 ensures current goes neither direction.

[-] Venat0r@lemmy.world 2 points 1 day ago

you know what else achieves the same thing... empty space...

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

First thing I noticed is the type c port is backwards

[-] Quexotic@infosec.pub 1 points 1 day 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.

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this post was submitted on 15 Apr 2026
575 points (100.0% liked)

Memes

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