:-D

I am using SolveSpace for my 3D prints because I just don't have time to learn anything else. With SolveSpace I've been productive in like 2 hours after launching it the first time.

So far you've saved me like $500 in things I've printed instead of bought. Just last week I've printed nasal manifold for my DIY sleep monitoring setup. Replacement specs legs a month ago.

If you really make fillets and chamfers a reality, please don't forget to open donations.

I've snorted my coffee. I happens to any organization that's run by people who are only in it for power, not outcomes.

Maybe reach out to Signal to implement some kind of one-way channel so you can reach people easily?

We need to put actual pressure on those fascists. Next time they even mention it, we flood the council website with an identical search query, say "Does no mean yes after all?" and if they persist, we strike for couple days.

Some are genuine. People who went into debt, with health issue that prevented them from ever repaying it, fleeing from families so as not to burden them...

Smugglers who were found out, left with an unpayable amount of debt while the politicians that used to protect them went without punishment.

Your screen likely uses dithering to produce 1-2 LSBs of each color channel of this piece of graphics right now.

Sometimes you have to trade personal liberties (makes liberals sad) and/or privileges (makes conservatives sad) to obtain better societal outcomes, i.e. mandatory vaccination or minimum wage. Those are socialist policies.

And since the major media and thus our shared social space is heavily anti-socialist (qui bono?), everyone is closeted and tries extremely hard to justify socialist policies as liberalism, which is not shunned. Hence people in the US now perceive them as closer or even "allied".

What is the challenge in scope design is that you need to protect the ADC and often user's life!

So the scope has 1Mohm || 15pF input impedance. You need to buffer it. So you first have to attenuate the signal by tapping this input impedance e.g. at 1/10, attenuating the signal. Then you selectively boost it back up for the ADC.

Or you selectively tap it at different ratios.

In any case, you have to protect whatever there is after the tap(s) by diodes that inherently bring parasitic capacitance.

Some scopes avoid expensive buffer ICs and go with split DC path (with gain) using opamp and then AC path (with gain) using e.g. JFET and BJT RF amps and combine those later.

The whole path from input to ADC must have flat frequency response in both magnitude and phase on all gain settings. This is non-trivial, especially with split DC/AC paths.

Sure, HMCAD ADC series help immensely nowadays with their builtin gain, but you still have to give them something flat to digitize as they output 8b streams and thus you won't be able to "fix it up digitally".

And then you also have to be able to inject bias to move the signal up/down.

And some scopes now can toggle between this and just 50 ohm impedance.

So, yeah, it's kinda non-trivial to condition signal somewhere between millivolts and mains to get to the ADC safely.

With RP2040 (and an LDO for supply), using two such channels for pseudo differential measurement (the second one just tracks threshold noise) I typically obtain 16 ENOB at 1 kHz, more at DC.

It is critical to avoid any periodic activity on the chip, though. Putting cores to sleep and then waking them up again causes huge spurs. One has to e.g. sleep for random intervals to spread them around. Same with flash. USB can be used, it's noise doesn't normally exceed -100 dB for me.

Fun stuff!

PS: I have not tested DC accuracy. One would likely use a channel with reference and hope that GPIOs are well matched. Could be used to e.g. sense CC lines on USB or analog joysticks and other non-critical, low accuracy stuff.

So they buy luxury apartments, outbidding you for construction companies capacity. Or they buy €20M luxury cars from limited 100-item series, outbidding state for engineers that could be designing next generation public transportation.

Public sector has been bled almost to death by regressive taxation, you bear nearly all of the tax burden so that a geezer who lived through nineties free-for-all can cope with his second midlife crisis while you struggle to get even a small apartment with ever-expanding commute times as you are forced outside of the city center.

Just. Tax. The. Rich. Geezer. More.

Seriously. If you've talked to some of them, they are not "titans of the industry", they are mostly greedy, average inteligence people that got lucky. No political nor economical nor cultural awareness. Half of them binge Russia fake news and/or Bloomberg and that's it.

God, some of those sick fucks even refuse to pay alimony despite owning huge companies. They would rather invent crazy schemes to hide their ownership and claim $10,000/y earnings than to take care of their kids. And they pay jackshit in taxes.

Not joking: https://www.seznamzpravy.cz/clanek/domaci-kauzy-beru-20-tisi...