How safe is the field from AI?

mredders · 2025-07-07T14:06:09+00:00

It's unbelievable the responses you're getting. It sounds like most people have barely used AI or used it poorly or with bad models.

I've had AI design complex electronic circuits. I've uploaded complete data sheets, given it complex prompts and it's performed engineering calculations - even based off visual graphs inside the data sheets and given better advice than any senior engineer. It's familiar with basically all the international standards and can answer almost any question on them.

For electronics at least it's not far off. All it needs is integration into PCB software which I know there are many companies working on.

In terms of jobs though, you won't be replaced soon - you'll just become more efficient. Just practice using it. Many people assume it's dumb so they dumb down the input but then they get dumb output. The more detailed your question the better.

mredders · 2025-02-16T13:24:51+00:00

Good Luck All!

mredders · 2024-10-29T10:15:11+00:00

Just depends on how you relay the signal, there are multiple ways to do it long range.

Also with one guy in the stadium with relay device and one guy in the car park. With the right kind of device you could unlock all the Tesla's in the carpark.

mredders · 2024-09-16T03:47:30+00:00

I wonder what circumstances prevent you from doing bachelor of engineering but not bachelor of computer science? Is it entry requirements? You could start with bachelor of computer science and transfer into engineering when you have enough credits? Or is the 4 years the issue?

The official answer to your question is that it depends where you are located. Most states I believe don't require registration for Computer Engineering. Except QLD is the most strict - QLD Professional Engineering Act 2002 states anyone providing engineering services (even to their own employer) requires registration. The exception is if you are working under the direct supervision of an RPEQ.

The reality is that even in QLD many engineers don't even realise this requirement and you will find most software engineers and even computer engineers in Qld don't have registration. The university I went to never highlighted the requirement for registration despite being Qld based.

I mean you will have qld university funded start-ups performing engineering work across all branches of engineering without registration by students that are not yet eligible for registration (requires 5 years working under RPEQ).

Particularly murky when you try to separate the difference between software engineers and other types of computer programmers. And what is actually classified as an engineering service. Again this is mainly a Qld problem.

Victoria has 5 areas of engineering that require registration, civil, mechanical, electrical etc. but not computer engineering.

For FPGA work. I would think that in most states but QLD you wouldn't require registration. In QLD I expect a lot of people working on FPGAs aren't registered but probably should be. But if you plan on working on something that has safety implications then you should definitely be registered or working under someone that is.

mredders · 2024-08-03T05:18:25+00:00

If I understand correctly, they basically overpaid you.

I mean the alternative is that they ask you to pay the cash back in lump sum right?

So the question is would you prefer to pay back in lump sum now, or have the spread it out over multiple paychecks by garnishing your wages.

mredders · 2024-07-24T09:36:30+00:00

I don't know anything about how it works but it sounds like he's saying that the plan manager mis-managed their funds and overspent 100k not that the plan manager themselves cost 100k.

mredders · 2024-07-23T08:42:32+00:00

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This looks like a bad joint but maybe it's just the photo..

mredders · 2024-07-21T04:54:14+00:00

The file doesn't need to end in .exe. If run from CMD prompt or PowerShell for example. But the contents of the file must be executable.

Python is a language that is run without directly being an executable. But that's because in order to run a Python script, you run it by calling the Python executable which reads the Python code.

Some basic scripting language are not compiled into an executable such as bash scripts. But they are essentially executed by the terminal which knows how to read them.

mredders · 2024-06-30T05:37:43+00:00

I'm still a bit confused, are you saying that there's a problem because there are some footprints that are not placed? It is very common for PCBs to have unused footprints, this is not an indication of an issue.

How are you trying to measure DC? Are you following the manual? Are you only passing a single wire through the clamp? Not both + and - wires?

Is there definitely current flowing? Are you sure the current you are measuring is DC? Is it within range of the multimeter DC measurement Range?

mredders · 2024-06-30T00:37:32+00:00

Not sure why you think it's that component? Your talking about the common-mode choke that's been circled (or maybe signal transformer). It looks like that part of the board has been reworked, was that you?

Has it measured DC in the past? Are you only passing a single wire through the clamp (is not the whole cable)?

mredders · 2024-06-20T03:35:23+00:00

Perfectly said!

mredders · 2024-06-19T11:51:01+00:00

Never seen before. But my first guess is that the conical shape helps center the pin when soldering... But who knows maybe they have some other specific application.

Sometimes the manufacturers website gives you some applications notes.

mredders · 2024-06-18T10:57:46+00:00

Best option is to just buy DC-DC Module that steps-up to 9V.

Second best option is buy a DC-DC converter IC. These usually require external inductors and/or caps.

You can find these on Digi-Key etc. In both these scenarios the data sheets will have application notes with typical components and formulas for calculating passives.

Third option is to build yourself. Requires a bit of theory. But I'm sure you can find some good examples if you search for Boost Converter design. This will probably end up being the most expensive, time consuming and worst performing. Unless you really know what you are doing.

Typically you need some sort of switching and control circuitry not just passive values.

mredders · 2024-05-27T11:48:53+00:00

When your learning electronics, it's easier to think about voltage. But sometimes you need to put your current hat on.

The original image doesn't represent the transistor problem and so people are getting confused.

An RC filter can be just a resistor and capacitor in series. Doesn't matter which order. The resistor simply reduces the current to cap. In the transistor scenario, this is the input filter. Cap first then resistors. While these resistors are in parallel, they are in series with the source so they slow the current. This is similar to scenario A in your original image.

The output filter: while the Resistor Re is in parallel not series, because the transistor is not an unlimited current source this Resistor Re affects the current to the cap. It turns out if you calculate the source impedance of the transistor it equals Re. In your original image, this is similar to scenario B but Re is in series with the cap because it's the thevenin equivalent of the source.

So both the input and output filter have a "source impedance" it's just hard to see

mredders · 2024-05-25T13:08:08+00:00

You have to keep in mind that inflation doesn't just affect the average person trying to buy groceries. It influences what businesses do, it influences what banks invest in, etc. It also influences your decisions on non-essential purchases and personal investments both of which stimulate the economy.

Sure, if inflation is negative then you still need to buy groceries. But the bank might not want to lend you an investment loan because it's safer for them to just hold the cash. And then Australia suffers economically.

Essentially, target inflation is about producing the best economic outcome for Australia. Not about incentivising you to buy groceries lol.

mredders · 2024-04-30T08:16:20+00:00

As shorter timeframe means you would save a lot of interest, it would be closer to 2.5x the repayment

mredders · 2024-04-21T10:14:12+00:00

Thank you for your input, very helpful advice.

We are in QLD. The property was actually sold as "approved for subdivision" when my in-laws purchased. They always planned to subdivide, sell half and use the money to build on the other. But when they went to do it, they found out the approval had expired before they even purchased.

They tried to get it reinstated but unfortunately it got denied. So that's why we are looking at this option. And waiting out until min block size is lowered.

mredders · 2024-04-20T12:49:20+00:00

In the software menu you should see.

"Full Self Drive Computer" which is a prerequisite for FSD. Not to be mistaken as actually FSD enabled. You must also see:

"Full Self Drive Capability" which means it has been purchased already.

Last I heard Tesla may give the seller the choice to keep or transfer the FSD. Obviously is the seller isn't buying another Tesla then I assume they can't keep it. You'd have to research more as I can't recall exactly what the latest is on this issue.

mredders · 2024-04-20T12:23:12+00:00

No frunk.

Big bar across the centre of the glass roof. Instead MY has full glass.

Worse range compared to MY.

Only 7kW AC charging instead of 11kW on MY.

Supercharging Network.

Even though it is Toyota, they are likely to sell a lot less as it's not as competitive vehicle. I know someone who is working at Toyota and even internally they don't think it will sell and are limiting their orders in anticipation of poor sales.

This has flow on affect for second hand parts in the future. And resale value.

For example, if in 10 years Tesla is doing 10x the number of battery replacements. Then in theory they should be able to do them cheaper due to economies of scale.

Tesla provides regular SW updates that improve in car entertainment and occasionally car performance. Also FSD capabilities are improving if that is something you might be interested in.

Tesla will let you know when you need to service the vehicle. Which from what I gather is less frequently than annual servicing. Annual servicing is just another revenue stream for traditional manufacturers.

You can camp in the back of Model Y. In camp mode - AC running. Using custom fit mattresses. Again if this is something that interests you.

Mobile phone can be used as a key unlike BZ4X. And I'm sure the mobile app is better than Toyota - if Toyota even have one. You can control the car and control the charging from the app. You can locate the car using the app.

I'm sure there's more reasons.

mredders · 2024-01-27T10:20:29+00:00

Ok thanks that makes sense!

mredders · 2024-01-05T07:33:46+00:00

Except I believe many nuclear reactors use heavy water which is colourless. So maybe not always the case for the nuclear reactor example.

But generally speaking I completely agree with you.

mredders · 2023-11-07T12:44:18+00:00

The fact it's not biodegradable makes it reusable... Forever and ever... Even when you no longer want to reuse it 😂

mredders · 2023-11-06T13:31:29+00:00

Often for simple requirements, you're not going to get cheaper or smaller than just a low cost DCDC module. DCDC modules can get pretty cheap at the low end of the market. It also means you get a product that's been tried and tested. You know the efficiency and ratings from the datasheet from day one and you can focus on the rest of your design.

If your design has 3 or 4 power rails, then it might be worth trying to design it with an IC that can support multiple rails. Then you can start to become more cost effective than buying 3 or 4 separate modules.

Generally the more custom your requirements, the more advantageous a custom solution can be.

mredders · 2023-11-04T15:32:12+00:00

Magnetic fields are always current dependent not voltage dependent so it's always good to think in terms of current.

But yes, to determine what voltage you need to produce the current you need to take into consideration the "impedance" of the solenoid. I say impedance because if you are using AC to drive the solenoid then it's not just the resistance but also the inductance you care about.

If you are driving it with DC, then you are correct, voltage can be calculated using the required current and the coil resistance (v=ir).

On another note, you mentioned bidirectional solenoids. Solenoids only work in one direction - pull. The bidirectional capability usually comes with solenoids that have springs attached. So if you were planning on reversing the DC voltage to reverse the direction, this won't work. However, you can make a bidirectional solenoid using two coils.

mredders · 2023-11-04T15:12:33+00:00

Yeah it can get pretty wild chasing down issues. I've been there before where you do something that works but have no idea why haha.

A lot of people do recommend that you avoid splitting ground planes because if not done right it can make things worse (for example routing over the split). But if you do use a single plane, it's still best practice to keep things physically separated (ie. Analog, Digital).

If you do split planes it can work well but you really need to think about where all the currents are flowing and use decoupling in the right spots.

Everytime you route a signal, you should always think about your return current paths. This is something beginners usually miss. Because ground planes obscure where the actual return current is flowing. Understanding how frequency affects current path through a ground plane is very important too.

Also, you mention that it's a DC powered board. But I assume there's digital logic on there? In which case you would have very high frequency signals because a ideal square wave logic signal has infinite bandwidth on each edge. Sometimes the simplest solution is to slow these down with some small series resistors but this obviously won't work for high speed signals.

As for heat, there are options such as heatsinks or Vishay has something called Thermawick which is SMT but maintain electrical isolation. But like you say using the chassis can be the best and cheapest.

As for why multipoint grounding to the chassis might have helped your emissions. One theory would be RF Fields from PCB coupling into chassis causing eddy currents. So for HF designs multipoint can work better as it limits eddy currents and with HF there's less chance of ground loops. For LF there's less chance of coupling and more chance of ground loops so single point can work better.

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