AFAIK, the ESP module itself actually has some addition bypass under the module shield (so that it's actually close to the actual chip), so it's probably not that sensitive actually, but I just figured I'd bring some attention to how for bypass the location often matters more than the value. 🙂

At HF the "return path" thing gets even more complicated as current takes the path of least impedance. Near DC that's the same as "shortest path" (least resistance), but at HF it's usually an (unbroken) gnd plane right below the conductor. Unlike to matter here really, but something to be aware of.

...but I kinda wanted to draw attention this idea of "current loops" because it's a better mental model than thinking about ground (or any other "node" really) as an abolute reference.

With C7 though, we see that while the +5 is close to the LDO input pin, the ground return path is actually much longer and more convoluted, so effectively the cap is "further away" than it might seem at first. Probably good enough if the LDO output seems stable with no serious ringing...

Here C1,C2,C3 are all close to the LDO and have a nice short return path. The path from these caps to the ESP VCC pin though could be shorter and while the VCC trace is wide, the ground return trace is much narrower (perhaps good enough, we're not very high current, but just pointing out).

So the "easy" answer in general is "the closer the better" although "if it works reliably, it's probably good enough." However, something I want to point out is that current travels in loops, so to measure distance, measure the loop from cap+ to device vcc and back from device gnd to cap gnd.

An accurate answer to "how close is close enough" gets a bit too technical even for me, but basically the goal of a bypass cap is to act as low-impedance source at high frequencies (ie. fast current spikes) and trace inductance (like any inductance) acts as a low-pass opposing changes in current.

Well, yeah... except some other oil then gets burned for the energy. I'm not naive enough to blame Ukraine for doing what it needs to do, but ... wars are environmental and climate disasters.

Also...

Looks like UAE might be starting to realize this war isn't so great for them?

I think the people on the wall street are too far gone by now, but let's hope that at least European investors eventually realize this is not going to work in their favor.

The sad fact is that when it comes to wars, everyone loses.

I have to disagree about the "beautiful" as environmental pollution and unnecessary carbon dioxide emissions are still really bad even if they ended up being the lesser evil here.

For what it's worth, I should be able to beat 95% of the population in these tests even after a beer or two, but that's more due to having spent all my life solving logical problems and finding patterns than any serious proof of any "innate" super-intelligence. People are good at what they practice.

I'd imagine these are probably fairly reasonable at testing whether someone lacks the ability to spot simple patterns at the lower end of the scale, but with the more difficult questions it tends to become more of "can I match this to some pattern I know" more so than actually "solving" anything.

I'd say the biggest problem with trying to formulate any "unbiased" test measuring "innate intelligence" is that pattern recognition and logical reasoning are skills you can definitely practice, intentionally or through exposure in education or professional work.

Also some Type-C sockets (which is basically like Type-E/F but without any safety earth) can be found in a few places beyond those listed. At least Finland has plenty of them in older buildings even though all new installations need to be Type-F.

The common "Euro" plug do fit several of these. The grounded variant will only be properly grounded with Type-E and Type-F sockets, but will technically "work" with a few others and the narrow variant (class II double insulated appliances) is fine in pretty much all of Europe.

I mean, if you go completely crazy with bypass then you will draw a large inrush current spike at power on as all those caps will need to charge, but that's unlikely to become a problem until you have a lot more capacitance on the board.

Also with LDOs it's also good idea to pay attention to layout as they will usually be the most stable if the caps are as close as possible on both input and output side and also the ground return paths from caps back to LDO ground as short as possible (again, trying to avoid inductance in the loop).

Too many power bypass caps is fine, while too little power bypass is a non-working board, so it's fine to be a little conservative. Just remember the small bypass caps should be as close to the power pins as possible, because it's the trace inductance you're trying to bypass.

Now, I'm not a member of any union and I have plenty of critique about European labor unions as well, but the "employees of a single company/facility/whatever" union thing is just broken as a concept. If you want unions, they need to be a near universal "cost of doing business" for employers.

The problem here (as far as I understand) is that the US does not really have any "labor unions" in the European sense. A proper labor union represents anyone in a given profession, across the entire industry, whether someone is currently employed or not. This is what gives them leverage.

Exactly how much of a gap you want "depends" but usually around 0.5mm or so at the "halfway" fret would be a reasonable starting point. Once you figure out what works for you, get a feel for what it looks like, it'll make adjusting again later much quicker.

To check neck relief, press (tuned) string against 1st fret and one of the body frets (eg. the highest is usually fine), then check that there's just a tiny gap between string and the frets halfway (usually most at 8th or so). No gap -> truss rod too tight, more than tiny gap -> too loose.

As others have pointed out, most like weather (eg. humidity) has caused the neck to lose some relief, fix is to loosen the truss rod a bit. It's usually VERY sensitive though, so try 1/8th of a turn (or even less), then let it settle for at least a few hours to see what the final result is.

I would do a quote here, but it turns out that the origin and exact form appears to be complicated, so I'll just link to this page instead, which has a few variants from different sources:

quoteinvestigator.com/2017/10/15/a...

Interestingly status.bsky.app seems to be dead now as well though, so who knows what's going on.

I'd guess something happened to one API server and now the other one is choking 'cos it's trying to handle all the traffic by itself, plus extra traffic due to retries. BlueSky suggested DDoS earlier, but regular clients (seems pretty aggressive) might cause enough traffic to make it look like that.

It took me like 6 attempts to just post that message and about a dozen to get the notification to load. It'll probably take several attempts to post this reply as well.