general-chat

[velvet pelican]

@hasty quarry they have actually said memories are stored in the blood as well... like people that have transfusions have memories of stuff from the person that donated the blood or organs

[burnt tendon]

Yeah, the problem is you can see neurons triggering on one end, the frontal lobe lighting up as a group on teh other, and everything in between is basically irreducible complexity.

[hasty quarry]

@velvet pelican No

There is no way

What the heck

[velvet pelican]

There have been articles on it

So maybe the blood is the hard drive and the brain is the ram and processor.... food for thought

[dusty citrus]

On the other hand:
https://www.frontiersin.org/articles/10.3389/fimmu.2019.01787/full

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

https://pubmed.ncbi.nlm.nih.gov/15754519/

[velvet pelican]

Maybe it was just the organs then... been a bit since i read it... like 2 years

[dusty citrus]

from:
https://www.ahajournals.org/doi/epub/10.1161/CIRCHEARTFAILURE.108.772756

There was no way to relate the clinical findings to heart disease until 1628, when William Harvey (Figure 2) clearly described the circulation

@velvet pelican I have to apologize for coming down like a gavel on the subject.

It's interesting to think about!

So until the year 1628 they had no idea what the heart was for.

1628!

Their theories about it, prior, were certainly understandable, given their limitations in knowledge from investigation.

[dusty citrus]

zaps a few of his own posts, here.

[tardy badger]

For those who build guitar amp pedals, a great laugh

But also sad that people share things they simply don’t understand

[late fulcrum]

Yeah, "footswitch"? It turns on the infection when it gets to your feet?

[quartz rune]

the tracking chip has a pedometer?

[late fulcrum]

That does make a vague amount of twisted sense, I suppose

[quartz rune]

I like that it's Covid 19 5G chip, combining the two conspiracies

[late fulcrum]

Like that xkcd comic about playing conspiracies against each other

[burnt tendon]

It does kinda make me want to get the parts and make myself some homemade artisanal ersatz one-off guitar pedals tho

[quartz rune]

turns out they just feed off each other

it turns out you can't Illogic someone out of a position they didn't logic themselves into, either

[burnt tendon]

Like, I've been thinking about that all day, which really doesn't help after Stargirl's article on how the Juno oscillators work.

[real falcon]

theres this old concept of putting many poisonous things in pot and whatever lives is most poisonous. do same thing with comnspiracies

[late fulcrum]

I read that with great interest, as I have a related (Jupiter) synthesizer.

Here's the xkcd strip I was referring to https://xkcd.com/966/

xkcd: Jet Fuel

The 'controlled demolition' theory was concocted by the government to distract us. '9/11 was an inside job' was an inside job!

[limber jackal]

It's so funny because it's so true! 👀

[quartz rune]

I've never tried it but I always smile and nod while backing away slowly from these types

[limber jackal]

• nods and slowly backs away *

😉

[quartz rune]

😛

[drowsy zephyr]

Guys, i have a question, does an op amp forces both feedback inputs to be the same when there is no feedback present in one of them?
idk but i saw in a video where they can zero out the negative feedback input because the positive feedback input is set to ground in a circuit analysis

[dusty citrus]

There is no linux specific channel so ill as here

Im using Linux Mint 20
When i want to run a program i installed using apt, i get following error:
tipp10: error while loading shared libraries: libicui18n.so.56: cannot open shared object file: No such file or directory

Unfortunately my package manager only provides icu55 and icu66, but not icu56. So i went to their website and downloaded the source code, compiled it, and installed it, but i still get the same error

What should i do now ?

@ me

[crystal ore]

@drowsy zephyr The op-amp only changes its output, so it doesn't directly influence the inputs. But yes, you will often only have feedback on one side, which will be sufficient to cause that side's input to match the other one.

[drowsy zephyr]

i see, thanks

[zealous ermine]

Let the homebrew commence!

[sick adder]

In an alternate universe, computer geeks solved the y2k problem by decreeing that 1999 never ended. As they account for it, the date is now Wednesday Bihexpentber 6 1999

[quartz rune]

And friends is still making new episodes

[real falcon]

jan2021 6 1999

[hasty quarry]

You know those live action shows like most of Gordon Ramsay’s shows where the camera somehow cuts to the person in a room saying “What’s on their mind” and then cuts back to the scene?

How do they do that? I don’t get it

What is the process there?

[late fulcrum]

I've been wondering that too (in my case, the show is "Forged In Fire", but it's the same idea of a timed competition). My guesses are they film them afterward and splice them in, or they get those while people are waiting for something to (say) heat.

[hasty quarry]

But that’s so weird

Sometimes they’ll be crying or laughing or looking like they’re feeling exactly the same way as the “real scene”

That is inhuman

[velvet pelican]

Its.... acting

[grave crest]

I haven't watched a Ramsey cooking show, but I figure it's a lot like most B-roll for real-time stuff....do as much as you can live, do everything else post.

Producer/director gives direction to the onscreen "talent", framing the conversation so that with judicial cuts, it can give the "right" contextual appearance.

Most of the time, the talent is complicit in this -- otherwise, they risk reduced screen-time or worse, getting a bad reputation in the very small business of cooking shows.

[hasty quarry]

@velvet pelican I know it’s acting

But these are just supposed to be “random chefs who want to win the prize”

Not spot-on actors

[velvet pelican]

Reality shows ain’t real its a conspiracy! Lol

Kinda like football

[idle lion]

They need a warning on gist now that github supports dark theme. Eyes have gotten used to that only to be blinded when I head over to a gist page.

[dusty citrus]

@hasty quarry No matter what else changes, the one thing that stays the same is the need to fill that time slot, even if they run out of good ideas.

So, Saturday Night Live stopped being funny, five years after the first one aired, decades ago. ;)

The business end of it centers on attention trapping. Period. ;)

An entire empire forms around a children's game:
Made You Look

[zealous ermine]

I got glasses today. I never realized how much I needed them

[late fulcrum]

I know that feel

[hasty quarry]

There’s really no way to tell your sight could be better

Except from sources like people telling you so

Or noticing that other people see better or so

[quartz rune]

Eh idk, I knew I needed glasses when I realized I couldn't read writing from distances I knew were OK in the past

[hasty quarry]

Funny how that is. I remember getting my glasses

“I CAN SEE EVERYTHING”

[real falcon]

noe most of mammal eyes retina is backwards, below blood vessels and support cells

our vision would be far sharper if not for that

[pearl vigil]

I had glasses since 1, I know nothing but the experience of new glasses

There are many questionable design decisions in the body

[stoic mesa]

and, of course, the famous blind spot - because the optical nerves are wired inside the eye, so you have to make an opening to route the nerves to the outside. What kind of crazy engineer would ever design something like this? Clearly an amateur work.

[real falcon]

iot blame the dice

[pearl vigil]

😆

[real falcon]

talking about funny...

[pearl vigil]

I feel like this complicates the integrity of the spacesuit

Also, I bet you could get a broader angle on that puppy

[stoic mesa]

If I were that astronaut, I'd try to get out of the way before you-know-what completes one full orbit around moon...

[pearl vigil]

Eh, I mean, the question is are you the one to clean the suit after

[stoic mesa]

I'd get out anyway

[real falcon]

if it was me, i'd fake it. no reason to risk heath for that lol

[zealous ermine]

You only live once

Plus you would break all known distance world records

Well... moon records

[real falcon]

lol

[burnt tendon]

I mean, see what you can do with no pressure.

[hasty quarry]

English question once again

What are you guys' thoughts on a sentence such as "Feeln't you any remorse?"

I know for sure "Feel not you" is valid

[trail compass]

Neither sounds right; I'd phrase it "Feel you no remorse?"

[umbral phoenix]

contractions are generally informal, but there is a generally accepted list and they usually involve helping verbs

[hasty quarry]

Are you sure "Feel not" is not valid? How can this be, when "Can not" is

And others like so

[late fulcrum]

I'd go with "Feel you not remorse?" I would regard the "Feeln't" one as both awkward and a non-standard contraction, but arguably technically correct.

[hasty quarry]

Yeah, I'm asking about theoretical correctness

[trail compass]

"Can not" is one of those special case helper verbs

[hasty quarry]

Just to make fun of English

[umbral phoenix]

as one should

[hasty quarry]

I speak like that as a joke

Using really dumb ways of saying those things sometimes

I willn't

I may've

Shalln't

[trail compass]

Willn't and may've are perfectly good dialect

[hasty quarry]

Heh?

Seriously? Hahahahahaha

[umbral phoenix]

but "feeln't" is something up with which I will not put

[tardy badger]

Are ya feeln’t now Mr Krabs

[hasty quarry]

What the....

[tardy badger]

Makes sense

[hasty quarry]

Anec, did you just do something there

My head hurts

Skerr, please....please

[umbral phoenix]

there's a history to that one 😉

[hasty quarry]

I'm thinking of the pronunciation as "Feelent"

[late fulcrum]

Yeah, there is, and the most common retellings are rooted in error

[hasty quarry]

I feel like I've seen something like Shakespearean text speak that way though

[trail compass]

shalln't is usually written shan't

[hasty quarry]

Wow

Funny thing is I know I've seen that

Dang

[trail compass]

in everyday speech, it's sounds pretty dated and British inflected

[dusty citrus]

Feel you no remorse

But that's never heard outside of entertainment (plays, films: theatre).

The way to become a skilled author is to write. Often. And at length.

[pearl vigil]

Thanks @late fulcrum for the bit of help with understanding the transmission line

Finally works now

[tardy badger]

So AirPods are interesting

Surprisingly good at staying in my ear compared to what I expected

Quality of listening is pretty decent too.

[limber jackal]

Can you compare them to the old/original earpods, @tardy badger ?

[tardy badger]

They are the second Gen, though I’ve never had the first Gen or even the Pro

[limber jackal]

I meant the earpods that were wired, and came with iPhones

if you know

[tardy badger]

But much more pleasant than I anticipated

It’s weird because I expected them to be more annoying than the wired ones

But without the wire, the listening experience is much improved

[limber jackal]

cool

[pearl vigil]

This is the only compliment i have for apple headphones

[tardy badger]

The sound out of my $25 symphonized headphones is by far superior.

These are decent, much better than I anticipated. But I have a few critiques but I think most people do.

I wonder if the Pro sound better, though I don’t want to pay to find out

[pearl vigil]

I think most people think its okay, because they dont get a good seal with other headphones.

Audio quality wise, earpods are not good

[tardy badger]

I only have these Airpods because I won them 😂

[pearl vigil]

Actually, I take that back, beats were populat

[tardy badger]

Only earphones I’ve found to actually have good sound quality is the $25 pair I got from Symphonized

They are wooden enclosure in ear

Quite comfortable for in ear too

[pearl vigil]

Meaning most normies desire headphones that take brand over function, lol gotta love normies.

[pearl vigil]

Nice

The science behind wood in headphones is pretty neat

Audio engineering in general

[tardy badger]

I’ve always been a stickler for good headphone quality. I hate junky sounding headphones. I was a little skeptical on the AirPods ability to produce decent sound

But so far I’m surprised

[pearl vigil]

Glad you are surprised, I was blown away by the cost for the quality

Not in a good way

[tardy badger]

Lol

Yeah

Apple is notoriously overpriced

It’s why I would never buy AirPods lol

Win on the other hand, sure 😂

[pearl vigil]

Well, if the end equipment was A good, B lasted, I would be way more than happy to give them my money

And if they didnt use slave labor, but who isnt

[tardy badger]

My wife wants a pair of airpods now so I may have to buy her some 🙃

[pearl vigil]

Lol, I just want another apple that does everything slightly different. I want so bad to like their products

[tardy badger]

The M1 might be it. I found myself upset my first week of work

They use windows for workstations but they want you to use Cygwin/git bash

Which is fine but Windows Subsystem for Linux is so much better

[pearl vigil]

I refuse to use windows at all, lol. It is a toy operating system now

[tardy badger]

It’s true

I’d much rather build on MacOS or linux...

It’s much more straight forward

[pearl vigil]

For 99% of users its a bootloader to chrome, and the other 1% will die on the legacy software hill

[tardy badger]

Yeah basically

[pearl vigil]

I put my normie mom on arch linux, she LOVES it

[tardy badger]

Haha nice

[pearl vigil]

Omg, my computer I paid money for actually works reliably enough to run a business, whod have thunk

And windows isnt even good for gaming, im not saying linux is the best, but at least it works. The only reason we have it is it came on computers by default, and microsoft trapped businesses with win32 api

[tardy badger]

I just dislike windows in general

I hate developing on windows

[pearl vigil]

Have you tried to install windows 10 recently?

[tardy badger]

Yeah

It’s so hand holdy

[pearl vigil]

They made the installer even more of a useless time waste, i didnt think they could make it worse but they found a way

[pearl vigil]

Is it?

[tardy badger]

Yeah...

[pearl vigil]

Its harder for a normie to install, I've proved this

Vs a popular linix distro

Ubuntu/Manjaro installers are easier to use

[tardy badger]

I disable as much as I can on windows 10 installs

[pearl vigil]

But then when you update, they change settings quietly in the background!

[tardy badger]

Yeah, it’s a struggle

Video card drivers break with almost every windows update

[pearl vigil]

People can call it a bug as much as they want, if I need to keep resetting my privacy settings you absolutly are doing it on purpose

[tardy badger]

Plus most windows hardware is just junk most of the time too.

Why spend $1000 on a plastic enclosure computer

[pearl vigil]

But the same junk is totally usable with literally any other os

[tardy badger]

Oh yeah, the plastic case just is a bad aesthetic and bad for overall hardware longevity

[pearl vigil]

Oh I see i took a variant of your point

[tardy badger]

The bare hardware itself is okay in most cases

[pearl vigil]

Most people could use something slightly more powerful than a pi and be happy, chromebooks would have killed it if Chromeos wasnt... Chromeos

[tardy badger]

But I’ve worked on too many brand new windows laptops over the years to know that even on $1200-$1500 laptops they take way too many shortcuts on quality

[pearl vigil]

Lmao, fr. My last $1100 dell laptop I had to drill holes in the bottom

[tardy badger]

Geez

[pearl vigil]

Apparently the engineer put quantum fan in the bom which didnt get fulfilled

[tardy badger]

Or even the cost of just rolling everything with an SSD would just “kill” these companies

Computers getting bogged down after a week of internet browsing with standard disk drives

[pearl vigil]

Yes. The history as to how we got to such low margins is a big part of computing history. But

[tardy badger]

I put SSDs in whenever possible

[pearl vigil]

Not even if it comes with antivirus

[tardy badger]

Warranties are garbage too

They usually come with McAfee

Which is bloat ware

[pearl vigil]

Selling warranties made me feel like garbage when I sold computers and phones.

[tardy badger]

I uninstall McAfee and install malwarebytes

[pearl vigil]

And yes, everything comes with McAfee 🙄

[tardy badger]

It’s not terribly much better but it’s less of a resource hog on scans

[pearl vigil]

Well the fact you need antivirus at all amazes me, i dont with linux, its not because the attack surface is smaller, and you can 100% get a virus, but with windows if you click an ad you can get some really nasty crap

It amazes me, the microsoft engineers are really smart

And nt was supposed to be really good

[tardy badger]

I don’t install it on my own computer

Just on people I know who look at questionable websites

[pearl vigil]

Windows 10 was supposed to be a microkernel in fact. And Idk you can do it on google ads

[tardy badger]

Like my parents are kind of super conservatives who are also super spiritual Christians

[pearl vigil]

Oh man 😂 okay...

I see where this is going

[tardy badger]

They visit this one website and the web filter on the router goes crazy for shell exploits

[pearl vigil]

Awesome. You need to sandbox them 😜

[tardy badger]

Haha they don’t have the patience 😂

I’d rather just install an app to freeze the software image and have them access files through a secure NAS connection

I can’t remember what my community college used on theirs but it was great

[pearl vigil]

Gf keeps installing sims mods that puts malware on her machine, Im rolling out a server in my closet. Gonna put on a type one hypervisor so we can play windows games and just spin up and down machines on demand. She'll just have a cheap arm laptop as a terminal

[tardy badger]

Lol good idea

[pearl vigil]

So malware can just live in its little box (application level sandboxing would be better imo) and I can just go back from snapshots

[tardy badger]

Thankfully my wife doesn’t do crazy internet browsing or gaming

She plays animal crossing and reads kindle books

That’s about it 😂

[pearl vigil]

But like I said, attacks have been demoed with google ads, its embarassingly bad, it doesnt take crazy internet browsing

[tardy badger]

I’m a computer engineer but honestly I am probably more of a network engineer than anything

[pearl vigil]

And most malware is very quiet

I guess if I could root every apple device with 10 lines of js... The security bar is pretty low

[tardy badger]

Well, depending on the version.

[pearl vigil]

You could up until the issue was found

Now that use after free bug is fixed

But it didnt need anything from the user, you could just send an imessage

[tardy badger]

There will always be vulnerabilities for sure which will allow for rooting, but the process of finding those exploits is increasingly harder which each update

[pearl vigil]

How it was found should have embarrased apple, they never fuzzed their own kernel

That is standard industry practice

[tardy badger]

What’s interesting is you can run debian really well on iPhone hardware

[pearl vigil]

Im not surprised, my phone has a octa core cpu and 8gb of memory, if only I owned the dang thing and put on manjaro i would own no other computer

[tardy badger]

I have an iPhone 12 mini. Pretty zippy all things considered

It would be fun to do AI/ML training on it

Stripped down of iOS that is

[pearl vigil]

Yep. Too bad, since the os is a lot of open source code 😂

[tardy badger]

Yeah, it’s a Linux kernel after all

[pearl vigil]

That is not true

Xous is the mach kernel with bsd userspace

Common misconception

[tardy badger]

iOS is based on a Linux kernel or was at one point

[pearl vigil]

I think its always been based off gnu mach

[tardy badger]

Sorry Unix

[pearl vigil]

Mach is a Unix os, and people just call it unix, which is where your confusion comes from

[tardy badger]

It’s mostly that people swap Linux and Unix so much

[pearl vigil]

I think because mach is now called gnu mach is why people say linux

Because GNU famously makes the software commonly atop linux

Hence GNU/Linux

[tardy badger]

Indeed, iOS is based on BSD Unix variant Darwin

Which is probably mach

[pearl vigil]

Yes, Darwin is based off xous

Darwin is the whole stack which makes the os, which includes xous

iOS is more like a distribution of that, but now I dont think the term darwin is used

I forget, this is my fuzzy area of apple history

[tardy badger]

I’m not finding anything on xous

You mean XNU?

[pearl vigil]

Im sorry, xnu

Lmao ive been staring at the xous code all week sorry

[stoic mesa]

there is a story that at one time Apple did consider basing their new OS on Linux and even invited Torvalds to visit Apple HQ. But they didn't come ot an agreement

[tardy badger]

😂

[pearl vigil]

Which is another kernel

[pearl vigil]

That doesnt surprise me

[tardy badger]

So it looks like Mach sought to replace the bsd kernel in the original Unix

[pearl vigil]

Torvald and nvidia should tell all we need to know

[tardy badger]

Or “update it”

Torvald has a lot of sisu

[pearl vigil]

Um if they used bsd kernel they did for a short period, they use the bsd userspace now

[tardy badger]

(Sisu is Finnish stubbornness)

[pearl vigil]

Actually I think I'm remembering what you mention

[tardy badger]

Which is funny because Torvald is Finnish which is something I recently learned

[pearl vigil]

At least he backs his stubborness over some solid core beliefs

[tardy badger]

I agree, his remarks were very on point

Nvidia has just been a bit careless recently

[pearl vigil]

What I want is Tim Apple and Richard Stallman in the same room

That I would pay to watch

[stoic mesa]

well, he has always been Finnish, as far as I know 🙂

[tardy badger]

I didn’t know he was Finnish

[pearl vigil]

Finland has a huge tech industry, which I also learned recently

[stoic mesa]

I was one of early ysers of Linux - started using it in 96, iirc

[tardy badger]

Finland invented the Nokia

[pearl vigil]

I thought nVidias purchase of arm was really weird speaking of which

[tardy badger]

Well, it originated there

Nokia phones had a lot of Sisu as well

[pearl vigil]

Thats true, I really want nokia to do well again

Wow, my nokia stocks are down -21.16% overall

[tardy badger]

My mom is very Finnish , so she loves Nokia products

[pearl vigil]

Glad I tripled my money with amd

[tardy badger]

I’m around 50% Finnish genetically speaker so I should love Nokia 😆

[pearl vigil]

I wonder which gene is the loving nokia one

[tardy badger]

I made a bundle on nvidia stock

Also a lot on Tesla

[stoic mesa]

you guys do invest in stocks?

[tardy badger]

Casually

[pearl vigil]

Not seriously ^

I think the stock market is a sham

[tardy badger]

I turned $500 into like $900 this last year

[pearl vigil]

Sorry, scam

[tardy badger]

Just for fun

[stoic mesa]

never had money to do it until recently... and too lazy to start now. Left this to my son

[tardy badger]

Sold after the new year to avoid paying taxes on it for my 2020 return 😂

[pearl vigil]

Lol, whenever I get interested in stocks and securities, I start learning, then I get horrified, and nothing makes sense. But I can predict the normies typically so its fun to do that

[stoic mesa]

500 to 900 - not bad.... better ROI than manufacturing PCBs

[tardy badger]

I basically threw money in during the March/April drop

Left it

Roku was the real money maker

[pearl vigil]

Aww really

[tardy badger]

Turned $40 into $120

[pearl vigil]

I sold all my roku a while ago, but put that money towards amd which did basically the same return

[tardy badger]

Fractional shares on Robinhood allowed me to diversify quite a bit

I also have some shares I got for referring people on Webull that went from ~$60 to almost $200

[stoic mesa]

my son urges me to invest in crypto
I repsond that he should do it and share the profits with me

[tardy badger]

Lol

[pearl vigil]

I dont wanna talk about crypto investing, Ill cry

[stoic mesa]

@pearl vigil why?

[tardy badger]

I’ve made some money on crypto but I was doing chump change compared to what I do on stocks

[pearl vigil]

I was soo happy to get $0.33 per XMR, and $20 for my BTC when I was mining 😭 😭 😭 😭 😭 😭

[tardy badger]

I thought about mining back in 2010

[pearl vigil]

Now XMR is $142 and BTC is $41200

[stoic mesa]

wow.. you should have squirreled some of these BTCs . for rainday

[tardy badger]

Ya know, when it was $0.25-$0.50 a coin

[pearl vigil]

Welp, everyone told me I was stupid, I was wicked pumped to get $20 and never thought it would last

Turns out

SKyrocketed

[tardy badger]

And it’s probably going up to $50K+ this year

[stoic mesa]

"On May 22, 2010, now known as Bitcoin Pizza Day, Laszlo Hanyecz agreed to pay 10,000 Bitcoins for two delivered Papa John's pizzas."

[pearl vigil]

Yep. That story is famous

[stoic mesa]

I wonder what he feels now

[tardy badger]

I recall a story about a guy who’s girlfriend toss his computer that had $4M in Bitcoin on it

[stoic mesa]

oh yes

[pearl vigil]

I even did something super shady at school (Which I regret and got caught so dont worry) and really pumped them out

[tardy badger]

That was like 2014

I should have really jumped on Bitcoin back when I first heard about it

I could be so well off

[pearl vigil]

I love the concept, and I love that banks hate it for the same reasons I like it

[tardy badger]

Criminals also love it

It’s the perfect laundering tool if you’re careful

[pearl vigil]

Boo hoo, I cant manipulate this currency and that while true, is way harder than you think

And unlike cash, there is a perfect record of the laundering

[tardy badger]

It’s also funny that the same tools developed by crypto is being used for bank security 😂

JPMorgan has a huge crypto/blockchain internal initiative

[pearl vigil]

Yep, they like the concept, they just cant manipulate it, when youre not the one at the money printer anymore you get less pumped

But I think bitcoin has a big flaw which modern government has figured out, but you could easily add it to a crypto currency, 1.3% inflation

Let transactions have effectively 1.3% more worth and thats solved (over time not actually that it has 1.3% more worth per transaction)

[stoic mesa]

sorry, I am getting distracted.. printing shipping labels for my crowdfunding and frying potatoes for dinner
Need to keep my attention on it before I ship fried potatoes to my backers

[tardy badger]

Not that they’d be mad about potatoes

[pearl vigil]

Lol, dont be sorry, casual #general-chat chat about OSes and money

[tardy badger]

I bought my first ESP32-s2 chips today

[pearl vigil]

Come and go as you please

[tardy badger]

My board is probably an RF engineers worst nightmare

[pearl vigil]

And nice, I was thinking I wanted the ESP32-S2, but now the C whatever is coming I dont

[pearl vigil]

Hahahaha oh boy if you think yours is bad...

[tardy badger]

I’m mostly want to see if this antenna works

[stoic mesa]

ok guys, see you later

[pearl vigil]

I screwed up my transmission line for bluetooth so bad, I needed to spend another $350 for a new rev

[tardy badger]

Then I’m going to get the one with psram and SPI flash integrated at really shrink my board

So to speak

I opted out of the psram to save space as it’s optional

[pearl vigil]

No bluetooth signal at all, the freq was all over the place.

[tardy badger]

Oh wow

[pearl vigil]

Are you going with PCB or chip antenna?

Or external ig

[tardy badger]

Chip

It’s dual band, 2.4GHz and 5.8GHz. I don’t even need the 5.8GHz

I’ll probably change it for the next inter

[pearl vigil]

Ah got it, dual band makes that harder

[tardy badger]

Iteration

Thankfully I just did the pi network for the 2.4GHz band

I’ve got an ESP32-C3 dev board coming at some point this year

Then I’ll make my own ESP32-C3 board

[pearl vigil]

Nice, I want to use the C3 as a wifi co processor in a wall mounted display which normally connects through other means

[tardy badger]

So much going on development wise

I am going to make a ADC breakout this weekend

[pearl vigil]

Nice

[tardy badger]

It interfaces over i2c

Might make a VLC module too

Or a receiver that is

[pearl vigil]

I just gotta work on my kernel 😫

[tardy badger]

Maybe make a transmitter too

[pearl vigil]

Cool, hows the fpga board coming?

[tardy badger]

Almost done

Hopefully will order this weekend

[zealous ermine]

i really hate doing maintenance on my oscilloscopes

all the high voltage circuitry freaks me out

but those contacts need to be cleaned, and no one else is gonna do it!

[velvet pelican]

What do you consider high voltage?

[zealous ermine]

anything above mains / mains itself

i work with 5v TTL, so i'm most comfortable with DC up to 24 volts

[velvet pelican]

So your talkin ac 120volt? Id be more concerned with dc depending on amps

[zealous ermine]

yeah

also the tube with all the high voltage magic to make it work

it's an analog scope

the highest amperage i've worked with is 5a at 24v for a solid state heatpump project

[late fulcrum]

The accelerating voltage in oscilloscopes generally ranges from a couple thousand volts in basic units to around twenty thousand in the high end units.

Really little ones might be as low as 600 volts.

[zealous ermine]

THAT'S A NO FROM ME!

600 volts is still a lot...

[drowsy zephyr]

Guys, i wanna ask

what's the main factor that reduces the regulated voltage in a buck converter?

is it the duty cycle or the frequency?

[late fulcrum]

It's the duty cycle

[velvet pelican]

@zealous ermine its not the volts that kill ya tho

Its the amps im more afraid of

Im just about done wiring my house but as always i kill all power before i do any work in the panel

And per circut is dead when I work on them

[tawdry karma]

does anyone know how companies create their own chips?

like i see some companies selling processors that are just augmented processors from other companies

i see how people make their own bluetooth modules and turn the pcb module into a chip-like package but i'm wondering if any of you know of any other specific manufacturing processes

[short bone]

Its very expensive process of putting the right materials in the right places in the silicon die.

[tawdry karma]

so the base of the package is either fr4 or silicone? so companies are sending prefabbed silicone to each other and then mounting that on more silicone to create their own chip package?

[short bone]

Integrated circuits' package is usually black plastic. Inside is the silicon die. The package is then soldered on pcb.

[tawdry karma]

ok zglue...there we go!

[pearl vigil]

Yep, and gold microwires are used to connect to the external pins, its possible to have a substrate which connects many chiplets

[tawdry karma]

that's what i'm looking for...any other ones?

who delete that...that was cool

[pearl vigil]

I did, it isnt typically how companies make chips

[tawdry karma]

ok but that's interesting

[pearl vigil]

And it really isnt making a custom IC, yes it is very interesting, their web app is cool

You can just drag and drop your chip together in the browser

However what you were originally asking about is probably IP vs the silicon itself

[tawdry karma]

well what do you call it then ..SoC?

[pearl vigil]

Many companies produce IP, such as ARM, and it is up to vendors to make a chip around it, so for instance the Cortex-M4 processor is in many different micros, then a chip makes gives it their own peripherals, which could also be their own IP they could license to others

[pearl vigil]

Not really, an SoC just means the entire system is on the chip, not the way its put together

So you could probably make a zglue chip and call it an SoC, but the term SoC is not a distinction in its construction

[tawdry karma]

right i might also be asking the wrong question but interesting to learn about all the common options associated with this

[pearl vigil]

For this, it is just a bunch of existing ICs, put on FR4 typically

[tawdry karma]

right

not that exciting

[pearl vigil]

But in many cases, they make sense, I worked on a game controller for someone and they were not making that many, so I just used one of these to keep PCB costs down https://www.lairdconnect.com/wireless-modules/bluetooth-modules/bluetooth-5-modules/bl653-series-bluetooth-51-802154-nfc-module#documentation

[tawdry karma]

yeah zip chips is what i was looking for

[pearl vigil]

You also might find the google skywater stuff interesting if youre looking into the topic https://www.youtube.com/watch?v=ILZ6fDHZ_eo

[tawdry karma]

i just saw an ad for a processor but it had another processor in it so i figured there must be a way to do that

so i asked you guys

[pearl vigil]

Ah, yeah, there are many ways to do it. ZGlue has the most interesting option IMO

That fpga substrate is cool

[tawdry karma]

im watching

[tawdry karma]

yeah is it a bga grid?

[pearl vigil]

There are a grid of pads you place bga chip on top of, then the fpga configures the connections by setting what the pads do

[tawdry karma]

interesting

[tardy badger]

Speaking in just general terms.. I’m really concerned about the next 2-3 weeks here in the US. Anyone else feel it being a little ominous?

[zealous ermine]

yes....

[tardy badger]

Not looking for any deep discussion but just feeing like things are about to hit the fan

[zealous ermine]

the good news is I got my first stimulus check

but thats overshadow by recent events

[tardy badger]

Yeah, I got my second stimulus yesterday

[zealous ermine]

the 600 one?

[tardy badger]

Yeah

[zealous ermine]

yeah that was the one I got as well

[tardy badger]

Well, my wife and I got $2400 since we have two kids

[zealous ermine]

That's good!

[tardy badger]

There’s about... $300 left after bills

Lol

[zealous ermine]

oh...

[tardy badger]

Well, bills and grocery shopping

[zealous ermine]

I don't have to pay bills (yet) so I still have around 600ish left

[tardy badger]

We are not hurting financially by any means

[zealous ermine]

that's good

[tardy badger]

Just read that one of the people that died in the capital hill riots, basically tazed himself to death on accident

[zealous ermine]

wait what?

did this happen during the capital raid?

[tardy badger]

Yeah lol

[zealous ermine]

well then... that's a crappy way to go

[tardy badger]

What’s worse is where the taser leads went to

[zealous ermine]

OH NO

[tardy badger]

You’ll have to look for the article

[zealous ermine]

can you send a link?

[tardy badger]

It’s hilarious but also sad

[zealous ermine]

im interested now

[tardy badger]

Wait nevermind I guess it was fake news

[zealous ermine]

shame

[tardy badger]

A rumor that wasn’t corroborated and later retracted

[zealous ermine]

😦

stuff like that happens way too often

[tardy badger]

Unfortunately

The guy did die of a heart attack, what caused it is unclear

[zealous ermine]

that's sad...

Hopefully not taser induced

[jovial swift]

you mean to say you read something on the Internet that was not true? 🤔

[hasty quarry]

Why do lights flicker? What component of them ages and causes that?

Or is it multiple factors

The tracks, the lights themselves somehow? Corrosion somewhere?

[jovial swift]

what type of lights?

[hasty quarry]

Say a street light, for example

Or a bulb

Or a ceiling light

[jovial swift]

two different techs there, street light probably due to age

[hasty quarry]

Yeah, I’m sure it’s due to age. I’m wondering why age, though

[jovial swift]

indoor incandescent could be tracks, wiring, socket, bulb itself...

[hasty quarry]

Why does age cause the flicker

In a street light, to keep the question narrower

What is aging there, in what way is it aging, and why does it cause a flicker

[jovial swift]

My Google-fu didn't turn up any good answers on sodium bulbs but probably the ballast goes bad, or the electrodes deteriorate, similar to how a florescent flickers near end of life

https://sciencing.com/causes-flickering-fluorescent-light-bulbs-6048822.html

[hasty quarry]

Hmmm

[late fulcrum]

Sodium bulbs are discharge lamps, so I'm guessing it's a combination of gas cleanup, gas contamination, and possibly electrode wear

[zealous ermine]

I just saw a plane fly over with a bright glow coming out of the back of the left engine

should i be worried?

it was flying realllly low

[slim shard]

hopefully Shatner had already warned the crew

[zealous ermine]

lol

[jovial badge]

Adwino uwuno

[zealous ermine]

I've decided for my senior project demo, I'm going to hook up one of my vintage speech synthesizers to the 4 bit computer

i think it would be cool

[late fulcrum]

secretly hopes the vintage speech synthesizer is a Votrax

[zealous ermine]

YES IT IS!

SC-01

i have 4 of them!

[late fulcrum]

Awesome!

[late fulcrum]

Mine's an SC-02

[zealous ermine]

do you know what the differences are?

[late fulcrum]

Not offhand, but I suspect it's not hard to look up

[zealous ermine]

sc02 has 2r pins, sc01 has 22

so the 02 has more stuff

[late fulcrum]

"The SSI-263 (or whatever you prefer calling it) is quite an upgrade from the SC-01; it has many more control registers, a different package and pinout, and so on. As far as I know, it has the same analog formant synthesis core as the SC-01, and is also capable of intelligible (but not necessarily natural sounding) speech."

[zealous ermine]

oh nice

[late fulcrum]

From https://www.redcedar.com/sc01.htm

[zealous ermine]

yeah the sc-01 is very minimal when it comes to speech synthesizers

[late fulcrum]

Which has a bunch of useful looking info

[zealous ermine]

no weird LPC or PCM, just straight phonemes

[late fulcrum]

Yup.

[zealous ermine]

my first project I used it for was a talking digital clock

you press a button and it says the time

what is that pcb for that has the SC-02 in it?

[late fulcrum]

It's an "Accent" speech synthesizer board. Mine is in an enclosure with a serial port to control it, but amusingly, the board inside sports an ISA connector, so I'm guessing it was available in an ISA version as well.

[zealous ermine]

loll

does it work?

[late fulcrum]

It does!

[zealous ermine]

oh wow

do you have any audio recordings of it speeking?

[late fulcrum]

Hmm, don't think so. Maybe I should fire it up and make some.

[zealous ermine]

that would be super cool!

does it have a built in vocab? i see some eproms

[late fulcrum]

When you power it on, it says "Accent ready".

[zealous ermine]

oh thats cool

[zealous ermine]

@late fulcrum have you considered dumping the contents of the eproms?

[late fulcrum]

Hmm, that might be enlightening. I'd have to build/buy an EPROM reader.

[zealous ermine]

you could use an arduino mega 2560. that's what i used to do for rom dumping

a good eeprom flasher / reader is the TL866II plus

[late fulcrum]

I heard there's an open source driver for the TL866

[zealous ermine]

👀

im using the stock drivers and firmware, so that sounds nice

[late fulcrum]

I can't, since they're DOS-only

[zealous ermine]

DOS?

[late fulcrum]

MICROS~1 operating system?

[zealous ermine]

oh i thought you were saying disk operating system

i was like 'wow that's old

[stoic mesa]

🙂

[drowsy zephyr]

guys, quick question, what's a good classic mosfet to use in projects?

[zealous ermine]

IRF160

[late fulcrum]

2N7000 for a small one

[primal flower]

I have been out of the computer field for too long.

Can a NAS wired directly to my gaming PC provide sufficient data transfer rate to game (game files are saved on it) with?

Also, are there hardware limitations to what Graphics card you can install (obviously you need to proper pcie slot) (more of data rate and other similar issues)?

@me with your answer. I will be busy tinkering with my radio setup

[late fulcrum]

@primal flower Yes, a directly connected NAS should be plenty fast enough.

[primal flower]

Any idea on the graphics card question? The PC overall is decent for my needs, except for the graphics card which is a amd 2008 card.

The PC in question was Frankenstein'd to get it working. Basically took the PSU, ancient graphics card and fans and put them in a PC that didn't have those, but had a much better CPU and ram

[late fulcrum]

No, that's not something I know about. I suspect someone who does know about such things would need more details about your motherboard to be able to comment on compatible graphics cards.

[primal flower]

Ok. Thank you.

[zealous ermine]

zooooom

[hasty quarry]

Who else loves tinned fish?

Herring, sardines, etc.

On crackers

I can't get enough of this stuff

[limber jackal]

🖐️ Right here @hasty quarry! Top of the list, currently, are smoked oysters on Breton crackers.

[hasty quarry]

I’m just getting into this

I saw a tin that said “Kipper Snacks” in my pantry, and I thought my mom wouldn’t mind. Now I need more. I just..I need more of this type of food

I need it

[limber jackal]

I swear, it's the oil. I think they lace it with.... something!

When I read "kipper", I was expecting a Red Dwarf reference! "Smoke me a kipper boys, I'll be back for breakfast"

[burnt tendon]

Well, I guess now you might have a see-food seafood problem.

[stoic mesa]

I strongly suggest using lead-free solder for tinning your fish.

[hasty quarry]

Shurik no

Wirehead

Wirehead I swear

[stoic mesa]

Couldn't resist

[late fulcrum]

:humanplz:

[limber jackal]

I should've figured that puns would worm their way into a fish discussion

[late fulcrum]

They are invertebrate punsters

[hasty quarry]

Mad. Bodger.

[zealous ermine]

😂

[velvet pelican]

I can tell he did that on porpoise

[spice moss]

if you have seen respirator masks so Razer announced this https://www.razer.com/concepts/razer-project-hazel

[real falcon]

that'd be great for talking with deaf person

not me specifically since i cant lip read lol

[spice moss]

well also the not need to speak louder

[real falcon]

hah

jan yeah true

[spice moss]

ventilation on that mask is something more better

[hasty quarry]

I wonder when you say “a” as an day, or “a” as in father

In pronunciation

Is it a style thing? I feel like there’s a pattern to it that native speakers subconsciously learn

When to use one pronunciation and when to use the other

[stray wind]

It's entirely based on your language, locale and dialect.

On some level it's arbitrary, but that describes much about language.

[stoic mesa]

And of course, people who are not British would never guess correct pronunciation of "Worcester": https://www.google.com/search?q=worcester+pronunciation

[stray wind]

@stoic mesa Or from the Northeastern US.

[lapis bluff]

The Original England pronunciation and the New England pronunciation are different.

But things like which "a" sound is used are well-defined. It's based on which language it was originally stolen from.

[hasty quarry]

@limber jackal Got myself some smoked oysters

Great recommendation, these are really nice

[dusty citrus]

What circuit did I just make? Following some TI LM3914 datasheet.

[stone orbit]

Bar graph

[zealous ermine]

digital VU meter

[sick adder]

Signal Prosseing

[zealous ermine]

brain hurt

[tardy badger]

lol

wow

[hasty quarry]

https://youtu.be/FkBNgYmdjRw

[zealous ermine]

im trying to squeeze all the preformance i can get out of my computer for VR

I've overclocked my gpu by 250mhz and the memory by 300mhz

this is the best I can get

[late fulcrum]

That's not bad at all for a breadboarded 4-bit computer!

[sick adder]

Unix second 0x60000000 was earlier today... ```>>> time.strftime("%D %r", time.localtime(0x60000000))
'01/14/21 02:25:36 AM'

[hasty quarry]

Could you call a chef a chemist?

Hahaha

Not officially, but just kind of a funny way to see it

Without really thinking about it, chefs know a decent chunk of chemistry, don't they?

[late fulcrum]

I would say bakers more than chefs.

[umbral phoenix]

salt fat acid heat

[burnt tendon]

I mean, it underlies everything about baking and chemestry and there's a massive overlap when you start to think about modern food companies and the food science degree.

But, mostly, you can screw around in the kitchen cooking without much of a recipe or measuring and generally adjust your way to good food within limits.

Baking, on the other hand, richly rewards people who work with scientific precision.

[pearl vigil]

I thought this was pretty well put together and this is the audience for it
https://www.youtube.com/watch?v=lq2BpWwcyQM&t=38s

[tawdry karma]

any vpn recommendations guys?

[stoic mesa]

I have used https://windscribe.com/ and was quite happy with it.

[late fulcrum]

I use the one built into my router

[tardy badger]

@late fulcrum same

Ubiquiti did such a great job with their Amplifi home routers and teleport VPN functionality built right in

I do prefer their enterprise products, but their home routers are just so much better than other home routers.

[tawdry karma]

have you tested it at all?

[stoic mesa]

What exactly you mean by testing? I had used it

[tawdry karma]

i tried seeing what it obscures from useragent and it's just the ip, i wanted it to also change some other stuff, not sure how that's possible but i guess i'll take it

idk whatever i think windscribe is good enough for now, this is turning into a rabbit hole for me, thanks shurik for the recommend

[tardy badger]

Finally have my degree date on my transcripts

Woo 🥳

[limber jackal]

Congrats @tardy badger!

[tardy badger]

Feels so good 😊

[limber jackal]

Now with a touch of Dev Tools in Chrome, you can turn that into "*** This IS an Official Transcript ***"

Because they taught you that

[tardy badger]

Lol

Funny enough I never did web development in my degree

All hardware and embedded software

[sharp hearth]

Please enjoy this very amusing screenshot, if you don't get it read closer. https://cdn.discordapp.com/attachments/542637741343637505/799976864298303508/unknown.png

[limber jackal]

That's.... impressive?

[coarse salmon]

cheap as chips 😏

[tardy badger]

I love 5V 3.7V LiPo for only $5

And $48.50 for shipping? Sign me up 🤣

[spice moss]

9V lipo for that too?

[drowsy zephyr]

Guys, question, is the NE555 active high or active low?

[velvet pelican]

@tardy badger im gonna make copies thanks fir the degree man 😂

Ill be a science plumber

[late fulcrum]

The 555 has several inputs and outputs, with various characteristics. Were you curious about one in particular?

[spice moss]

artemis test https://twitch.tv/nasa

[hasty quarry]

In H*ll’s Kitchen, why does Ramsay say “service please” at the hot plate? I’m on season 3 and I still don’t get what he’s asking for when he says that

[pearl vigil]

Does a service staff member happen to come to him when he says that? Most kitchens with big Chiefs like Ramsey have a service staff for things like say, dicing veggies

Which are from my understanding within the same "class" as the customer facing service staff

[crystal ore]

He's asking for a waiter to come and take the finished dishes to the customer's table.

[burnt tendon]

So, fun thing about the SLS green run test that aborted after about 60 seconds. They were actually, for a bit, saying "Hey, you know what, let's skip out on doing a green run test and just do a quick static fire on the pad for a few seconds instead"

Which is basically the rocket science of literally every "Hey, you know what, let's write the tests later" conversation I've ever had

[hasty quarry]

Why do people say cacti and cactuses, octopus or octopuses

And I’ve never heard viri either for virus

This makes no sense

English hello?

[limber jackal]

Everyone says "one piece of data", but it's really "datum", and plural is "data"

[hasty quarry]

Yeah I know that

[burnt tendon]

It's largely based off of whatever language the word was stolen from.

[hasty quarry]

I’m talking about “us” to “i” or “es”

What is virus from then

[burnt tendon]

Latin

[hasty quarry]

Vs cactus and octopus?

Those are both greek

Hm

[limber jackal]

It can get really fun when you get to a word that comes from a previously derived language, like French, that has Greek and Latin roots

The etymology of words can be really fascinating, but sometimes, I've left with a sense of "But, WHY??!!?!?"

[crystal ore]

Latin also has several different ways to make a plural. So you've got datum / data, but also things like larva / larvae.

[late fulcrum]

And words like "box", is the plural "boxen" (like Old English) or "boxiges" (like 5th declension Latin)?

The plural of "cherub" is "cherubim", as it's a Hebrew term, but I saw one writer refer to "cherubims". Then there are holdovers like "brethren" as the plural of "brother".

[ocean sigil]

Then you have moose which is the plural of moose

but geese for goose

[late fulcrum]

And "fish" which is the plural for many of one kind of fish, but "fishes", which is the plural for more than one kind of fish.

[umbral phoenix]

seems a lot of the ruminant ungulates have same singular and plural

(I guess that's redundant)

[ocean sigil]

guess if you've seen one you've seen them all 😉

[velvet pelican]

Mees or meeses is a better plural imo lol

[stoic mesa]

And in many languages, there is more than one plural form for the same word. E.g. in Russian: два дня (two days), but пять дней (five days). Just so that you don't have it too easy.

[dusty citrus]

"Would you like a corn?" while offering cooked corn on the cob.

true story

[late fulcrum]

If you have a beef with someone, the plural is "beefs", but if you're using the archaic term "beef" to refer to a cow, the plural is "beeves".

[tardy badger]

English is fascinating, isn’t it?

[zealous ermine]

best thing I've read today

thank you

[arctic peak]

/giphy query: dont have a cow

Well that didn't work

[zealous ermine]

ITS HERE!

[polar bloom]

What's that, a computer kit?

[zealous ermine]

Yes sir! Its a 4 bit CPU that I designed a few months ago

[polar bloom]

Oh it's a CPU built with just logic gates? Sweet

[zealous ermine]

Yeah! It uses 71 logic chips

[limber jackal]

Cool stuff @zealous ermine, congrats!!!

[zealous ermine]

Thank you! Once i test it (and if it passes) im making it open source and releasing it on github

As well as its conpiler and datasheets

[limber jackal]

That's so awesome of you @zealous ermine

[zealous ermine]

Thanks!

Any questuons?

[polar bloom]

This is the kind of thing I'd want to do some day as well, looks like a fun project.

[limber jackal]

Yes, but not of the technical nature, if that's ok... What was the inspiration for the project?

[zealous ermine]

No joke, i got bored about 4 years ago

So i started designing a basic processor

And now we're here

[polar bloom]

What does the name stand for?

[zealous ermine]

Löschen in motion (my nickname) computer 4

[polar bloom]

This is the 4th attempt then? 😄

[zealous ermine]

Yes lol

[polar bloom]

Did the other 3 not work, or are you just iterating on the design?

[zealous ermine]

Version 1 and 2 worked but they were wildly different from version 4

Version 3 was DoA

Version 1 and 2 were also only simulated, but never build using hardware

[late fulcrum]

How many instructions in the instruction set? I'm guessing 16, since it's a 4-bit computer but I'm curious.

[zealous ermine]

It has 20

It uses a 5 bit operation register

[late fulcrum]

Hmm, like a Harvard architecture with a 5-bit instruction bus and 4-bit data bus?

[zealous ermine]

It gets weirder

5 bit fixed operation bus and a software defined 11 or 4 bit data bus

[late fulcrum]

Oh, that makes sense. It reminds me of the Motorola MC14500B, with its 4-bit fixed operation bus and 1 bit data bus (and no program counter, if you wanted that, you added it externally)

I love the feeling when a board I designed shows up, and yours is a bigger/more complicated board than most of mine.

[zealous ermine]

the MC14500 is so cool

a 1 bit CPU seems so strange

[limber jackal]

Very cool @zealous ermine. I get board and scroll around YouTube! Your habit is slightly more productive 😉

[late fulcrum]

Motorola brought out that chip as a way to replace relay-driven process control logic with a chip. It turned out to be an unexpectedly versatile (and yes, strange) chip, and was produced for a very long time.

[last solar]

Found my grandfathers old soldiering iron from the 90s

It’s actually so beat up it’s insane

Going to try to clean it up

[coarse salmon]

I would refurb that! tis awesome - maybe even use an arduino to add some new features (lcd screen, preset temperatures, audio jingle on power on/temperature ready, some rgb leds) 😂

[zealous ermine]

I spent the entire day soldering the circuit board

And im not even done!

It doesn't help that the solder I got is kinda awful and always leaves cold joints

[late fulcrum]

I'm very fond of eutectic tin-lead solder with good flux. I'm even more fond of 62/36/2 RMA solder. It makes gorgeous joints.

[zealous ermine]

The stuff that i used to use was by MGchem

Only issue is the price. $45 per spool

[late fulcrum]

Yeah, the 62/36/2 isn't cheap, I think the last spool I bought was $61.

[zealous ermine]

Woah thats pricey. I'll check it out soon! It sounds promising

[late fulcrum]

Worse, the price has gone up https://www.digikey.com/en/products/detail/kester-solder/24-7150-9710/7565174

If you just want to try some and see if it works for you, you can get a pocket tube of it for less than 6 bucks https://www.digikey.com/en/products/detail/chip-quik-inc/NC3SW-031-0-5OZ/13531441

That's a different brand and different flux, but good stuff

[zealous ermine]

@late fulcrum this is what i used to use

[late fulcrum]

That's some nice eutectic solder

[stoic mesa]

I just got myself this 63/37 Kester's solder on Amazon.
Yes, I remember madbodger's reservations about using Amazon, but they did deliver exactly as promised, and I am quite happy with the solder.
https://www.amazon.com/gp/product/B00068IJOU/
Of course, moral objections to using Amazon are a very different story.

[tardy badger]

I’ve been considering graduate school for a while as it’s something I want to accomplish and finish, but I’m not 100% sure how far I want to go.

In one hand, a masters program remains technically attached with it still being closer to the role that Bachelors degrees follow, just more specialized.

A ph.d is definitely very niche and that’s particularly interesting I think because I’d love to know very granular details of subjects, but I’m a way I feel a Ph.D might be too granular.

I feel like I’d be happy either route, but maybe someone who has a doctorate or masters might be able to weigh in one way or the other

[stoic mesa]

I have PhD, but not in engineering, so not sure how relevant it is

[zealous ermine]

Whats did you major in?

[stoic mesa]

are you asking me or @tardy badger?
My field is math, which is rather different from engineering

[tardy badger]

B.S. Computer Engineering

[umbral phoenix]

MS can be for breadth and / or depth. PhD seems more for depth.

[zealous ermine]

Cool stuff

[tardy badger]

I’m just curious if you (anyone with advanced degrees) feel like it was worth it for the path you chose

I’m mostly just looking to do either a MSc Computer Engineering (focused in VLSI and Digital systems design) or a Ph.D program

Similar focus area

[zealous ermine]

Im looking at the same thing tbh

[tardy badger]

One thing I’m hoping for with an advanced degree is not necessarily being canned to work on software because people don’t understand what Computer Engineering is

Right now I’m an embedded software engineer, but I really want to be more hardware than software.

[late fulcrum]

As far as I can tell, hiring managers consider "a degree" better than no degree, and a more advanced degree even better, but look for specific keywords under skills and job experience. Once in a while, you'll find someone doing keyword searches on degrees (like job descriptions listing a requirement for a BS in Computer Science), there's not much you can do about that.

For technical positions, the resumes are generally filtered by HR to remove obvious non-matches, then the rest go to a more technical person for more filtering and analysis. My job path parallels yours, I got a fair amount of embedded experience building custom crypto boards, then did geospatial work for a while, then ended up freelancing in hardware design (which included more embedded software work). However, I never managed to earn a degree.

[spice moss]

spaceX launched well and soon starlink satellites will be deploy

[zealous ermine]

Time to populate the board

[tardy badger]

Weird thing is I applied for hardware roles, but basically got shrugged off because I wasn’t EE

With the exception that of Texas Instruments but I had already accepted my current position with L3 by the time they got around to the final interview request

[late fulcrum]

That does happen sometimes. I had one company shrug me off because my relevant experience wasn't "recent enough".

[tardy badger]

Yeah, gate keeping by EE is kind of stupid for hardware roles. There are so many instances, especially now where Computer Engineers are far better equipped for hardware development than EEs

Mostly because CompE has shifted to a lot of embedded hardware development and integration, and EE in so many cases is still heavily focused in power systems.

[late fulcrum]

I had one job with a newly graduated EE who regarded me with disdain as I didn't have a degree. However, one tricky hardware debugging situation showed him the value of real world experience and he respected me more from then on.

[tardy badger]

Glad your experience could really shine through in those instances and make a positive impact

[late fulcrum]

Me too. It felt good explaining concepts he understood but was unaware of.

Like the time I helped an automotive engine instructor repair his VW by the side of the road.

[limber jackal]

There is nowhere near enough acknowledgement that experience and knowledge in a completely different domain can be useful, and provide completely new insight into a situation that can trip up "experts"

[ocean sigil]

My favorite expression " Experience is being able to recognize your mistakes when you make them again"

[zealous ermine]

IT WORKS

OH MY GOD IT ACTUALLY WORKS

[limber jackal]

🥳

Congrats @zealous ermine

[zealous ermine]

This project took 4 years

And it works!

Im in shock

[stray wind]

Amazing! Way to stick with it!

[zealous ermine]

😁 😁 😁

[stray wind]

I haven't even been doing this for four years 😆

[limber jackal]

4 years?! Wow, that's got to feel just so incredibly amazing and fulfilling!

You haven't @stray wind? Could've fooled me with your expertise!

[stray wind]

Nope, July 2017 was the first time I started programming and electronics.

[zealous ermine]

4 years seems like a lot for a single project

But it sure didnt feel that way

[limber jackal]

I suspect it wasn't 4 years of 8-10 hour days, 5-6 days a week, right?

[zealous ermine]

Nope

But at least 1000 hours went into this

[limber jackal]

Wow, that's incredible! Undoubtable natural talent! 🙂

[zealous ermine]

👌 👌

[limber jackal]

It may have been 1000 hours, but the "it works" on first go, I think, shows the amount of effort and attention invested during that time

[zealous ermine]

Im suprised it worked first try as well

I was fully braced for the magic smoke

[stray wind]

😊 Thanks.

[hasty quarry]

Man, I am just feel of these English grammar questions

Which one is correct, "I never knew what it said" or "I never knew what it says"

This sounds like it depends on context. The former is more commonly used, but I have this gut feeling that the latter wouldn't be incorrect in a special case

For example, another sentence with the same structure: "He never said what it does", rather than "he never said what it did"

Am I crazy, or on to something?

[tardy badger]

For the first question, former is correct in most every context. I don’t see grammatical standing for the latter.

For the second question. Context plays into which to use

If something worked in the past but not now, “He never said what it did” is most correct.

But if works still and you’re puzzled on the operation, “he never said what it does” would be historically and contextually accurate.

[viral spruce]

@tardy badger Hi - I am currently finishing up my masters (MS. ComputerEng.) and have a BS in computer engineering as well!

re:

I’m mostly just looking to do either a MSc Computer Engineering (focused in VLSI and Digital systems design) or a Ph.D program

topics like VLSI and more advanced topics in signal processing are def. touched on more during a master's degree than UG.. depending how you structure your program of study.

Feel free to pm me any specific questions you have about "what to look for" in a program or any q's 🙂

[tardy badger]

Oh cool!

Yeah, I'm looking at the University of Utah right now since i'll be living there here soon

[viral spruce]

Commenting b/c I've had a similar Q years ago and had faculty/advisors/peers in programs already to answer it at the time

[tardy badger]

plus they waive GRE of B.S. holders

[viral spruce]

nice - GRE seems to be waived during covid19 times for a lot of institutions

[tardy badger]

yeah

I really want to get into chip design. I loved the VSLI class i took this last spring

But I also love digital systems design and verification

[viral spruce]

fwiw - most programs I've seen list VLSI and IC design as concentrations of EE not CPE

at least in the northeastern USA

[tardy badger]

surprisingly, UoU lists those as CPE and EE

[viral spruce]

i think nyu did as well. anyway if you have specific q's about what to look for or general q's, feel free to pm me anytime 🙂

[tardy badger]

https://www.ece.utah.edu/graduate-programs-in-ece/graduate-program-ph-d-programs/ce-m-s-requirements/

I guess I’m just curious how the experience is overall

[viral spruce]

right now? It's weird because of COVID19 🙂

Overall experience has been positive - I work for adafruit (almost) full-time and have been doing the MS courses part time for the past 2+yr.

a lot of the topics I've encountered in the more advanced MS classes I've been able to apply to very specific parts of work, moreso than what I've seen during undergraduate.

[limber jackal]

Not a bad place to put education into practice and see where "in theory" stops and "what really happens" dances

[tardy badger]

My biggest issue will likely be what I’m wanting to do grad school wise not quite lining up with my current role. It aligns great with my side hustle hobby electronics business

[viral spruce]

Likely you'll take a few (3?) classes for breadth - those could line up with your role. And then a bunch for depth (VLSI, IC design, signal processing) which'll line up with roles down the line

depending how your department offers their "program of study"

[tardy badger]

Signal processing would probably be the closest to what I’m doing now

I did take a dsp class my last semester but it was not a great learning experience

[viral spruce]

another thing to consider is if the program has a thesis component/do you want to do a thesis and possibly publish

[tardy badger]

I’m not sure if I want to do thesis or project option

There is a straight “course work” option but many people I know advise against it

[viral spruce]

most programs dont make you decide until the "second year" but I'm going to advise you to find a PI and starting thinking about it+working with them the first year

[viral spruce]

🤷 my initial program had that and advised against the thesis track, my main reason for leaving was because I wanted to write one and learn research/publishing. A lot of people didnt care and had job placement - base it around what you want to do.

[tardy badger]

Ultimately, learn and demonstrate the depth and expertise that I need to eventually work on my electronics company full time

I just love making new boards and learning how to adapt chips into designs. And I eventually want to design custom ASICs

I have this completely unrealistic dream of a mostly US based supply chain

🙂

[viral spruce]

not that unrealistic - could maybe be more applicable post-covid due to some challenges that've occurred within global supply chains during this time

kk i g2g, feel free to pm anytime you see me online 😄

[tardy badger]

Thanks for your input 🙏

[sick adder]

tzatziki? digikey?

[grave crest]

Hmm. Now I'm hungry for a gyro.

[tardy badger]

Yum

[stoic mesa]

3DOF gyro, I hope?

[zealous ermine]

Mmm yummy

I love engineering jokes, they make me laugh so much

[zealous ermine]

Blinkenlights!

here's the first program I got it to run

00000000 00000100  LVX 0x0 start:
00000000 00000110  INX mainloop:
00000000 00000001  STX 0x000
00000000 00001000  CMP
00000000 11001110  JOF overflow
00000000 00101001  JMP mainloop
00000000 00001001  JMP start overflow:

[limber jackal]

So cool @zealous ermine. The more I see of your project, it reminds me of a similar one by Ben Eater, where he's building his own computer from scratch too. Yours is much tidier though, since he's doing it ALL on breadboards!

It's so fascinating to see yours come together and grow!

[late fulcrum]

Then there's this one, using a discrete NOR gate as an ALU http://www.mynor.org/

[zealous ermine]

Woah

Impressive

[zealous ermine]

@limber jackal the first version of the CPU was done on breadboards. It was a mess

[limber jackal]

Oh wow, and all one colour wire too. My hat's off to you!

[zealous ermine]

Yeah, debugging it was a pain due to the wire color. I added lots of labels to it to help me

[limber jackal]

Very nice. makes for a fun side-by-side before and after photo!

[jovial swift]

wow, and I thought your PCB was impressive

[umbral phoenix]

ugh, I want to join a Discord server, not in the public index. I can't log in in the browser for some reason, browser invite links don't go to the app, and I can't paste invite links in the app. 😦 can't DM myself either

that's odd. finally got the web login to work, and it asks me for my birthday, something the app has never done.

[zealous ermine]

hmm, weird

[hasty quarry]

How many symptoms of a sickness are generally attributed to how your body is fighting, and how many to what the pathogen is actually doing to you

Because a bacteria colony or virus or others of the sort can’t just flick a switch and cause a fever

[zealous ermine]

that's a really good question, im interested now

[hasty quarry]

And it’s weird to me how an illness can have specific symptoms. For example, take a virus that gives you a bunch of pulmonary issues. How in the world does the virus always end up in the lungs? Why does the virus care about where it is? Isn’t all it wants to do to eat me from the inside and replicate? Why can’t it end up in my heart, or my legs or something

[zealous ermine]

evolution does some weird things

[hasty quarry]

Hm, yeah, I can see that. Maybe the virus IS in your whole body, but its species’ enzymes only link with a specific area of cells

And other types of cells simply see its injection is garbage rather than valid information? Just guessing

[zealous ermine]

that sounds plausible

[hard mica]

ATTiny13, a microcontroller with no RAM.

[tardy badger]

Well... it has ram just not ram

If ya catch my drift

[hard mica]

Oops, I meant Tiny15.

[late fulcrum]

Fever is part of the body's response to infection. Some viruses only bind to specific proteins, and those proteins may only be present on the surface of certain cells, such as ACE-2, present on lung and blood vessel cells, which is an "entry receptor" for COVID.

[zealous ermine]

Cool stuff

Biology is interesting

Also i made some more test programs, All the conditional jumps passed, and the stack and stack pointer passed

Everything is 100%

[dusty citrus]

points if you listened to Glenn Gould's Goldberg Variations while soldering all that stuff. ;)

[zealous ermine]

I did listen to classical music!

Mostly organ concertos

[zealous ermine]

I have a question: Should I put a heatsink on the 74181? the CPU has a 74181 (not LS) on it. it's connected up correctly, but it gets really warm when running

sometimes too hot to touch if running fast

it's pretty isolated from other parts, and it's in a socket as well

[late fulcrum]

That ceramic case usually has the die mounted to the bottom half with an air space between it and the lid, so a heatsink won't do a whole lot, but it will help some.

[zealous ermine]

👌 👌

[zealous ermine]

heatsink has been added! I got some thermal epoxy a few months ago and I'm finally using it

I'll check the thermals once School opens back up. They have a thermal camera I can use

[idle iron]

Doing some CP translation on weblate.... i been skipping some stuff. for example... no clue what "ndarrays" is even in english so not sure how to translate that...

ive just been treating it as a proper noun....

[pearl vigil]

n dimensional array?

[winter dagger]

Hello from Linux Conference Australia!

[dire viper]

At least...

[sick adder]

@idle iron "ndarray" is a type (class) in numpy and I think also in CircuitPython/ulab. By the way, translation questions are perfectly on-topic for #circuitpython-dev and thanks for your work on translating!
https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html

1DOF Gyro

[zealous ermine]

😮

[sick adder]

A baker's dozen, devil's dozen, long dozen, or long measure is 13, one more than a standard dozen. A gross refers to a group of 144 items. In a baker's gross, there are 144 items (which would make a gross a gross of 144). If you divide 144 by 13, you get the number of items per gross. The total number of items in a gross is 144 times 13. If you divide 144 by 13, you get a number of 13 × 13 which equals 144. The total number of items in a gross is 144 times 13 times 14.

I simply can't get GPT2 to tell me how many items are in a baker's gross.

A baker's dozen, devil's dozen, long dozen, or long measure is 13, one more than a standard dozen. A gross refers to a group of 144 items. In a baker's gross, there are 156 items because each item can only be made once. In a gross, there are 159 items because a group of items can be made twice. Each group of 14 items is also a baker's dozen because the total number of items is 144 minus 156, so one more than a standard dozen.

[ocean sigil]

I think you need to take Sundays off 😉

[late fulcrum]

But a Baker's Sunday is Monday

[stoic mesa]

"Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three"
https://montypython.fandom.com/wiki/Holy_Hand_Grenade_of_Antioch

[dusty citrus]

Dr. Ting came up with a version of eForth written in JavaScript. The latest SVFIG video on YouTube has the details.

A copy of the repository:

JeForth v4.02
https://github.com/flagxor/jeforth/tree/tingvariant

index403.html is the entry point.

Then you paste in forth code in the resulting window.

(or type by hand if you like)

[sick adder]

TIL that, bizarrely and needlessly, json's string representation allows the / character to be represented instead with the escape sequence \/

[late fulcrum]

Could be worse, could be CSV.

[sick adder]

catastrophe-separated values, yah

[crystal ore]

It's a shame. There are nice, well-defined ASCII character codes for "field separator", "record separator", etc. so we could have had a perfectly good standard tabular data format. But no... gotta be commas...

[limber jackal]

But it's gotta be human readable, so that the humans who shouldn't be generating or looking at that data in raw format can do so anyway!

[slim shard]

catastrophe (took way too long to find)
https://wallhaven.cc/w/0wyk9p

[limber jackal]

lol, nice @slim shard, thanks! 🙂

[zealous ermine]

I just got accepted into one of my top pick universities!

[stoic mesa]

@zealous ermine congratulations!
Which one, if it is not a secret?

[zealous ermine]

Clarkson University (it's easy to get in to, but I think it's good)

[stoic mesa]

nice!

[zealous ermine]

yeah! I'm exited

[dusty citrus]

@zealous ermine How's the new board?

You might want to pay attention to (the) forth (programming language) if you're not already doing so. ;)

[zealous ermine]

the board is running great! and yeah, I've been thinking about implementing FORTH on it for a while now

Not sure where to start, but I think it should be able to run it (with a memory expansion card)

I need to make a C to Asm compiler first. Up to now, I've been developing software in assembly and oh boy it takes a while

[dusty citrus]

;)

haha.

Yeah I'm threatening now to rewrite eForth in eForth (it's authored in assembler).

Seems to me once the binary image is on the target, I should be able to do that.

Someone recreating my work would:

• compile the assembler
• upload to the target STM32 hardware
• upload ascii plaintext souce to the forth interpreter there
• turnkey
  Next iteration, they're in a forth written in forth, from then on. ;)

(which they could further modify)

Sounds like a lot of work, though.

[zealous ermine]

yeah, for now, i'll stick with working on a calculator ROM. the CPU was meant to run a calculator when I first started work on it

that's why it's BCD based

[dusty citrus]

;) Yeah I've been meaning to do some of that in eForth but there's always preliminaries.

I have a 96x8 Lumex dot matrix display that accepts ASCII at 115200 bps (like it was a modem).

I use output-only USART code to tell it messages. Very simple (USART input is a whole other matter).

At some point I expect to be glad to have this one avenue to report system states, when I get deeper into fundamentals (inner interpreter loop for example) without resorting to something like a Segger J-Link EDU type situation.

[limber jackal]

Congratulations on getting into your top pick school @zealous ermine! So cool! 🙂

[zealous ermine]

Thank youuu!

[sick adder]

https://0.30000000000000004.com/

[hasty quarry]

I'm about to begin a dual credit Algebra course in 10th grade

I am

Terrified

Terrified

I feel like I could do it. But I'm just so scared

A computer engineering course will surely want a good math record. I need to take this

[stuck moth]

I don't think the intro CS course at my college needed strong math numbers. they care more about how you do in the course

so, do your best to learn a lot 🙂

[hasty quarry]

Man, I'm scared

First college level true course

[stoic mesa]

@hasty quarry algebra is not that scary - if you need help, feel free to reach out.
I had taught it enough times 🙂

[stray wind]

@hasty quarry You'll do well, I'm certain. You've learned so much in the time you've been here, I absolutely believe you can learn algebra in a course setting. Simply remember to advocate for yourself - ask questions when you don't know something, and don't be afraid to reach out for help.

[hasty quarry]

Thank you guys

[burnt tendon]

Yah, I have to say that literally the hardest part about math for me was really advocating for myself, especially on the college level.

[grave crest]

And it goes without saying, do the homework. It's there to strengthen your skills. The deeper you get into math, the longer some problems may take. [ah, the days of spending 30+ minutes on a single problem for homework]

But you come out of it better for it. Same goes for anything in life, really.

[stray wind]

@burnt tendon You're not the only one, which is exactly why I pointed it out. Folks don't feel like they can or should ask questions, and end up struggling. Professors are there for a reason, but on the off chance you end up with one who for whatever reason doesn't like to answer questions, you can find other resources like study groups or tutors. There are plenty of options for support, but you have to seek it out.

[velvet pelican]

30 minutes wassnt bad when i was taking circutry... most of those took me like an hour

[zealous ermine]

progress on a control card for the CPU

[tranquil gazelle]

woooah that's cool!

Whooooops

[dusty citrus]

@zealous ermine what do you do when you need more than four digits displayed? Write down something previously displayed?