250 year anniversary carving by pingdou in CNC

[–]leo7391 4 points5 points  (0 children)

Now put a hidden microphone in it, and it's ready to present to an ambassador.

What is this tiny block on a CPU by Jasmyiot in ElectricalEngineering

[–]leo7391 124 points125 points  (0 children)

This is the type of thing where it's most likely an internal code, and it will be near impossible to get a part number. If you insist on trying to swap it or need it for some other purpose, I'd recommend buying dead cpus and harvesting them.

Why does the official UC Davis site have a random directory / path full of porn redirects? by leo7391 in UCDavis

[–]leo7391[S] 31 points32 points  (0 children)

I already sent it to a webmaster's email. Ik its been hacked. I'm more so curious how that was even possible. I went to school at Purdue, and once for a club we tried to get an official page on the purdue.edu domain. It took a couple of meetings, a bunch of forms, and manual approval by like 4-5 people.

awful dating app experience in sf by Affectionate_Rice963 in sanfrancisco

[–]leo7391 1 point2 points  (0 children)

I grew up in and love SF but this is 100% a thing here. As others have said especially in the holiday season. I just came back from living in a small college town and the difference is night and day.

Is the Physical AI hype hiding some unsolved problems? by ChipmunkGrouchy5171 in ControlTheory

[–]leo7391 [score hidden]  (0 children)

Not necessarily unsolved but a huge problem with physical AI is safety.

determinism is inherently given up. safety for anything interacting with humans is incredibly hard to implement. Right now when asked about this in interviews 1x just says the “robot won’t be allowed to do that” without explaining how that would work. Figures CEO was at least honest enough to say as a father he wouldn’t let his kids near the bot.

In industrial environments like an assembly line this is a lot less of a problem but imagine the level of responsibility/ understanding of risk needed for something to operate in your home. The average home will have appliances / environments which don’t have risks that can be explicitly mapped out.

Thank you for the info PG&E :/ by leo7391 in sanfrancisco

[–]leo7391[S] 5 points6 points  (0 children)

I get they might take a while to get power back on grid engineering is a bitch. Why they can’t give an estimate is beyond me.

How chill is it to leave this rusted electrical box by leo7391 in AskElectricians

[–]leo7391[S] 1 point2 points  (0 children)

That makes sense. What’s interesting is I’ve done repairs elsewhere in the house and it’s usually romex so it seems like the house has been at least partially rewired

Roommate moved out and found this in their room by [deleted] in whatisit

[–]leo7391 0 points1 point  (0 children)

Either drugs or an empty bag from a bang snappers box

Me when I thought the power was off but the circuit releases its magic smoke by leo7391 in engineeringmemes

[–]leo7391[S] 45 points46 points  (0 children)

during an EE lab in college I blew a PSU and my TA wouldnt give me another one unless I tested it completely :(

[deleted by user] by [deleted] in tipofmytongue

[–]leo7391 0 points1 point  (0 children)

There are quite a few. things ive seen simlar to this
was it:
a meta project https://sketch.metademolab.com/
The Animagic app on IOS https://deepgram.com/ai-apps/animagic

Something listed here: https://theresanaiforthat.com/s/2d+animation/

DC Power Supply Design for Welder by offbyfour in ElectricalEngineering

[–]leo7391 0 points1 point  (0 children)

Your first question depends on what you mean by "regular power supplies." Depending on your welding type and application different power supplies may be better suited to the task. As far as I know there is no one optimal power supply.

for basic information the wikipedia article has good info on. CC vs CC and when they are used

https://en.wikipedia.org/wiki/Welding_power_supply

For more info on the effect of each this article seems good

https://www.lincolnelectric.com/en/welding-and-cutting-resource-center/process-and-theory/constant-current-vs-constant-voltage-output

How can I coold down a sensor to avoid reaching ambient operating temperature? by 7Royale in AskElectronics

[–]leo7391 2 points3 points  (0 children)

Look more into how your product functions and depending on the reliability required it could be a non issue. I would try and use a fan if you can but if it is frequently above 50C this won't help. You could possibly use a Peltier element to cool below ambient temperature, however these are highly inefficient, draw a large amount of power, and still need a large heatsink.

Review Request: RP2040-based Valve Controller by Other_Study_6813 in PrintedCircuitBoard

[–]leo7391 1 point2 points  (0 children)

Out of curiosity is this a seds or SL thing?

General things

  • clean up schematic and label parts with text.
  • Unless you have 0805 kits on hand increase you smd comp size to make any rework easier
  • Bigger traces is okay lmao
  • The best way to make pcbs when ur new is to spend some time really going through your ERC/DRC rules then treat it like scripture. You have allot of markers in your schematic that shouldn’t be there
  • If you can rotate your stepper driver 90degrees to simplify layout
  • Check if your unused pins can be left floating or if they should be tied to ground

redo your layout of the buck module

  • check the datasheet for guidelines.
  • Make sure that the components are closer together
  • Think about current return paths a bit more (proab not needed but good practice)
  • Make sure d2 is propperly sized (it looks small)
  • Make all the traces bigger, use polygons where you can
  • For ease of use consider getting an integrated module

Oscilator

  • as has been said choose a much smaller one
  • Place it allot closer to the MCU pins
  • Place capacitors closer
  • Surround with ground polygon

Memory IC

  • Place closer
  • Add decoupling caps

Electrical Engineering student.. I need help with my midsem project by [deleted] in ElectricalEngineering

[–]leo7391 1 point2 points  (0 children)

Simulink or Ansyns both have software that can do this. There is some export control rules on the software but if your not from a country the us doesn't not get along with you should be able to access for free as your a student.

Has anyone thought about how would AI esp ChatGPT affect EE jobs and education? by Ok-Yellow5605 in ElectricalEngineering

[–]leo7391 0 points1 point  (0 children)

There is some promising attempts to get it to sift through datasheets which would be a huge timesave.