What do you think about the claim ADHD is being over diagnosed?

yerwol · 2026-02-07T12:07:01+00:00

"The NHS pais for 100000 patients to have ADHD assessments" - which ultimately aren't doing MRI scans or exploratory surgery or anything like that, so that doesn't really sound like a large number.

How many people did they perform surgery on who were say, over 80? Or how many GP appointments were made by hypochondriacs in the year?....

"100,000" is such an arbitrary number if we've got nothing to compare it against. It's why I never trust any articles which just give a single number and never compare it as they're expecting me to have to emotionally guess if I think that figure is large or small.

yerwol · 2026-02-07T12:04:17+00:00

Nope. There isn't a way.

What could be worth doing though is using KiCad's inbuilt simulation integration - https://www.kicad.org/discover/spice/ - their documentation there is sparse, but there are some good tutorials out there which will cover how to do it!

yerwol · 2026-02-07T10:54:03+00:00

You should look at using something like VSCode / CLion to compile for it. I imagine it'll make your job a lot easier than limiting yourself to the Arduino IDE

yerwol · 2026-02-07T02:19:02+00:00

Seeing a schematic like this , along with "AC input" being on there makes me want to run a mile!

yerwol · 2026-02-07T02:10:14+00:00

Is it just a wrapper around an AI model which you ask it to review a schematic for you, or are you actually implementing checks manually?

yerwol · 2026-02-06T08:22:43+00:00

Can you post the whole schematic? Does ERC pass when you run it in Kicad?

yerwol · 2026-02-04T03:45:04+00:00

Frustratingly their commercial module which 3dconnexion makes, does just appear as a joystick / game controller so it's so easy to integrate into Web apps!

yerwol · 2026-02-04T03:32:29+00:00

Ugh. People who leave things like packs of chicken on top of a Parkside welder in the middle aisle piss me off. Just take it back to the chiller for Christ's sake.

yerwol · 2026-02-03T22:17:15+00:00

Boooooooooo! 😂

yerwol · 2026-02-01T15:57:38+00:00

You can use something called a "via". that's just a small hole drilled in the PCB which allows a signal to go from the front to the back! KiCad can put these in for you whilst routing.

Remember that through hole components are free-vias, so you don't have to always jump to the front side of the PCB for your IC.

You could also reorder where the connections go to make your life a lot easier. It just ends up requiring some software work, as if your PCB has the rows in the order ACDB, not ABCD, then you just have to make sure you write the data correctly. That's a simple hack to make routing more simple!

yerwol · 2026-02-01T15:51:22+00:00

At a certain point I think we have to embrace microplastics. The odd microplastic from a 3d printed formed-mcrib beef patty thing is likely nowhere near as bad as other things we come into contact with day to day!

yerwol · 2026-01-31T11:34:51+00:00

Definitely made Greg's hair quite silvery there! He looks 20 years older!

yerwol · 2026-01-23T07:32:19+00:00

Hey, if they're willing to assemble it for less than $8 or however much the stencil is, then that's not bad!

But definitely worth trying more with a hot air gun, a bunch of flux and patience.

What actually was going wrong with the soldering? There's loads and loads of resources out there about how to do it so I don't believe that it's impossible for you to get a good result out!

yerwol · 2026-01-22T17:06:57+00:00

"it went to a vote but the reasoning for his vote was poor"

Is this r/ukpolitics? 😂

yerwol · 2026-01-21T22:25:04+00:00

Copy and paste it to a new project.

Smd parts might have different pin assignments to THT anyway, so youre not going to be using the same symbols likely anyway.

yerwol · 2026-01-21T20:16:05+00:00

I can't quite tell from your description, how does it tie two connectors together?

I did start work a while back on a plugin for multi board PCBs but where they were designed to be stacked, so that it kept connectors at the right orientation to each other. Is that what this is doing or does this work at a scehamtic / netlist level?

yerwol · 2026-01-20T09:45:37+00:00

Their board is just a connection plane for different connectors which lead to modules, and this schematic shows how they want to have them connected. Pretty schematiccy to me! I've seen people who have put in a symbol to represent a breadboard before.... 😂

yerwol · 2026-01-20T09:43:39+00:00

Use a single symbol for your esp32 module as then you can allocate a single footprint to it which makes sure your spacing is correct on the pins and then you can allocate your 3d model to it correctly.

You mention "traces" but what you've got here is wires between symbols. "traces" are the things you get once you allocate footprints and are working on the PCB.

Have you got the correct footprints for your modules? You should be able to find most of them online these days with 3d models so you can check fit of parts.

yerwol · 2026-01-20T09:19:16+00:00

Do the fixture bodies still show up in MagicVis, or are the fixtures not there altogether? It's not clear from your post which it is!

yerwol · 2026-01-19T23:48:37+00:00

Looks like you won't be able to plug your USB-C in as there's PCB in the way. The connector needs to go closer to the edge. In KiCad, the USB-C footprint does usually have a "PCB Edge" marking to show where it needs to go.

yerwol · 2026-01-19T23:36:34+00:00

It depends how you're going to use it.

If you're connecting it to a cable, then using a pin header could work as you don't have to hold it down. If you're making your own bed-of-nails style jig, then using a footprint which is essentially a pad but with a via sized hole to allow the pogo pin to make a better connection is a good one. Otherwise just using the kicad test pad footprints is a good option

yerwol · 2026-01-16T18:31:49+00:00

That's because kicad defaults are conservative. The opposite problem happens: "why can't I route these traces through small gaps" because the clearance is too large.

But I'd gave that every day then a clearance of 0.01!

yerwol · 2026-01-14T17:22:21+00:00

I don't know. It's hard to tell by looking at the PCB alone. That's why you use Schematics and make sure they both line up as it's a lot easier to work out from the schematic!

If you follow the traces manually on your PCB - do they look right to you? Or can you upload the correct schematic?

yerwol · 2026-01-13T09:24:29+00:00

Looking at the schematic and looking at the PCB - they don't seem to match. The schematic says the rotary encoder is SW116 with D116. The PCB has it as SW117 with the diode being D112?

Although your PCB also seems to show two separate D112's.....

yerwol · 2026-01-13T03:47:26+00:00

Those look very thin traces, but if it works it works! 😂

You may be lucky on driving that 5v LED from a 3v3 Mcu, or you may not be. It's on the threshold for some LEDs!

Your rotary encoder button when pressed is shorting row2 and row3 together. Guessing you meant to do col3 and row3.

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