#general-chat
1 messages · Page 222 of 1
one was linux doing too many tests the other was killed by windows search and defrag
you cant even trust linux
windows is good for interfacing but backend isnt great and alot of games wont run on linux still
you need to litterally check the code yourself and compile it in a lead bubble
linux for servers tho... thats gold
linux.. i'll be honest i knew it was easy comming from the dos era
i just feel nothing is safe without a airgap
now your talkin plumbing lingo
no if a machine has a airgap
it means it's offline and unable to be access unless dirrectly next to it in person
yeah i get it
"airgap"
plumbing uses the same concept except its for water to drain... outlet to drain inlet
every faucet and fixture in the average house is protected by an airgap or a vacuum breaker
toilet is the vacuum breaker
the rest are all airgaps
and landscaping is a number of things that can protect it
some sort of backflow preventor
im thinkin no remove access at all from anything... not even the microwave
It's actually not easy to estimate lifetime unless you first establish optimal conditions, and then you must somehow determine the percentage of time this drive has existing within those optimal conditions. For instance, was there any humidity? Did it ever get cold and then you booted and wrote a larger amount of data to it? What's the ratio of read versus write operations performed? What's the average temperature the drive has operated in? Was there any dust? Was there any significant magnetic (or other) fields nearby at any point? When you handled it, did you ensure that you were grounded and wore an anti-static bracelet? Has it been exposed to vibrations, and if so, for how long, on average, per day?
You can definitely be safe(r) without being air-gapped. Turn off all radios. Only connect via ethernet to networks you trust. Keep your operating system up to date. Never install any applications from sources you wouldn't also like to watch you sleep at night.
The only thing you really need to be completely air-gapped for are private key generation for GPG/PGP, cold-storage crypto wallets, and other such things, like root certificate chains. If these leak, well, really, really bad things can be staged using your keys. For instance, NVIDIA's signing keys were actually compromised in the most recent hack. They had to cancel them all, because otherwise bad actors could publish malware signed by NVIDIA. Even just a new version of a driver or whatever could easily carry a bad payload, and you wouldn't even know, because it was signed by NVIDIA, a company you love and trust. 😉
For those times that you need to be air-gapped, make sure that you have a clean/fresh, vetted live USB from a distro you can trust. I am a fan of Tails because it lets you decide on how to handle disks and files, including encryption at rest and similar. It will also completely disable all wired and wireless communication if you tell it to. You can elect to use the Tor network if you want, but, for key generation, don't. Ensure that you have a secondary clean, vetted USB drive or SD card plugged in that you can store the private key on (and you should probably create an archive out of the private files and revoc certs, and then encrypt them so that the only way to retrieve them would be via the paper key). Also, connect directly to a printer (no wifi/bluetooth) and print the paper keys. Store that USB drive/SD card in a safe place such as a shielded bag within an actual safe. Same with the printed paper keys.
Whatever you do, don't write things down in a notebook. That's how you expose all the key players in your operation. It's happened time and time again, and I think my favorite is "The Humble Babe" which was the defacto boss of Fairlight back in the day. Her notebook contained contact information for all major players within Fairlight, as well as external contacts within HA (the biker gang) and other criminal enterprises that were buying stolen/faked credit cards to fund their day-to-day activities. I don't even remember, but it was hundreds of people that went down like a long line of dominoes because this person wrote it all down in a notebook because they didn't trust that data to be stored anywhere digitally.
This is obviously an example of bad actors. But the same applies to corporations, or just your own personal GitHub account if you maintain packages that are widely used. Supply chain attacks are becoming more and more common, and they are extremely effective once successful.
"Important" people are deliberately targeted while traveling. If someone knows you work for corp X and you are someone with clout, bad actors can, and will, target you. Whoops, your laptop got stolen. Probably just some crackhead, right? Nah. There's no such thing as a coincidence in this case.
Same thing goes for your trash. Shred everything. Dumpster-diving is basically the easiest way to gain information about anyone.
my HDD in my old pc got dropped a couple inches once when cleaning under it... that was a moment of panic till everything booten and all my files were fine
shred? i live in the country... it all gets burned in a burn barrel
cant sift through ashes and find ink
make sure you burn the credit card/loan junk mail too
burn season permitting that is
ohh yeah enything with an address and my name on it
which is all mail
That's the way to do it.
ive heard of people putting shredded docs back together
after that i decided buying a shredder would be useless and just burn all of it
Depends on what shredder you get, for sure.
My main issue though is that my name is entirely unique. I guess I could change all my accounts across the board in an effort to somehow try to remain anonymous, but, I am sort of a fan of being the only one, because I can definitely, without a doubt, find the people trying to target me. And, they will regret meeting me in person.
i would want one that shreds with a mower blade below it that chops it off as it comes through.... 1/4" squares wont be put back together by even the most desperate of people
well.... you are mr t
the a teams most hardcore member
whats got you scared of flying?
Not sure, I've never been a fan of heights. I've fallen a few times (from unsafe heights), but I don't know if that's it. These days the only way for me to fly is to be completely present during take-off and landing. I have to watch the entire thing, and I have gotten into arguments with passengers that tried to keep the window covers down.
Turbulence still messed with me, hardcore. Even though I know that the plane can handle extreme conditions, I panic every time it hits a pocket and drops. I know, rationally, that you shouldn't be worried when the wings are moving. You should be worried when they stop moving.
yeah fear of heights and flying is difficult
i mean i understand alot about planes and turbulence
played flight sim a ton when i was a kid and was obsessed with planes and flying so i learned alot... but bad turbulence still makes me nervous
I have been on a flight where the wings actually, literally, iced over, and they were not, I mean, NOT moving, at all. Completely rigid. The defrosters were working overtime and still weren't able to clear the ice buildup.
capt we need to drop to a warmer elevation
There was no such thing. This was in the middle of winter. Flight from Newark to Reykjavik.
yeah winter is a more turbulent time too
Snow was everywhere, no matter the altitude basically... it was nuts... Looking outside, everything looked like Star Wars Hyperspace.
kinda neat in its own way then but still not a fun trip to be on
Fortunately both the pilot and co-pilot were Icelandic. They grew up with that stuff and trained extensively in those conditions in flight school.
It was a smooth flight, albeit scary.
Landing was insane, though. Ground crews had not been able to keep snow off of the runway, that's how hard it was coming down. Pilot speaks over the intercom and says, calm as a cucumber, "We are about to touch down at Keflavik, but the storm obscures the runway lights, and we have been informed that there's at least 3 feet of snow on the ground."
Smoothest landing I have ever experienced, ever.
Apparently it doesn't matter that there's snow. The landing gears will heat up so fast when they touch the tarmac that they will vaporize the snow.
Needless to say I got off of that red-eye and headed to the nearest bar.
😄
lol
i can only imagine
i remember snowboarding in lake tahoe in 3 feet of fresh that dropped the night before at 30 below 0 we were dropping 15 foot cliffs that day and you couldnt even tell you landed
lightest snow ive ever experienced... especially compaired to the heavy stuff we get here
people come here thinking ahh yeah ive driven in snow lots of times and then crash because its so different from the light snow they are used to
just change your legal name
Henceforth I shall be known as John Smith!
Oh no
yeah, there's all that paperwork to do, and at the end they just trash it all and hand you a sheet of paper in comic sans saying this
Oh, I missed a really interesting discussion last night, the one on securing computers. I once had a friend who had been tasked by his boss to write up how to make the company's computer completely secure (the boss had been scared by some news report), and the boss didn't want any compromises. So, the report ended up saying, you build a room for the computer with three foot thick concrete on all six sides, with embedded faraday screening, the only thing that goes through is a (non-magnetic) rotating shaft for the power, this room is built underground (for good grounding of the faraday cage). It's still not completely secure because it might be possible to derive data from observing the thermal radiation (which is helped by burying it deep enough). 🙂
My first question in all such situations is "what is your threat model?"
That would be the question to ask if your incentives were aligned with the boss's. But if we relax that assumption, then all sorts of recommended company expenditures become rational...
My second question is "what is your budget?"
oh this remembers me a place where I did a job interview, the boss (I suppose) was showing me around the place, then the server/nas room was locked inside to a room which was made out of drywall and a glass door
interesting, though I wonder if can use PID heater/cooler to stabilize temperate to hide that
And then once you build the perfect air-gapped room, the boss comes in, says, "How come I can't get to Facebook on this?!" and you end up having an Ethernet cable snaking under the door to plug into the regular building network...
Every. Single. Time.
I generally shut everything down and unplug from grid and ethernet before trying to move a computer.
Putting it into sleep mode isn't sufficient. There's still current going into, and through most of the computer.
I wouldn't put anything critical on that drive, that's for sure.
I have a 365 subscription with 1 TB OneDrive as well. I like it. I got really angry with Dropbox after their continued price hikes. Started searching for an alternative, and went with a 365 family subscription because it was less than $100/year and came with 1 TB storage. I use it mostly for backups and save games and docs for my gaming rig/laptop. For most other things I have Nextcloud.
I just use the hard drives I have to make backups
Discord feature I want: Subscribing/getting a little indicator when a particular channel has messages. I am in a number of servers where I mostly follow like one channel.
I mute entire categories, generally, then I manually configure each channel I want updates from
some servers I have entirely muted because they are very high volume
I have this server muted outside of pings due to its massive volume of chatter per day
Got one that has half the chatter that i am in and only have half the channels show if someone says something… I could spend half a day just reading backlogs here
This server is chill compared to some of the game-specific Discords I am on.
Dude. I don't ever go on game specific discords or communities at all.
The toxicity is off the charts.
I guess that's fair
Some games are chill.
But many many are not at all
I used to play a lot of Apex Legends, because it's super fun. Got tired of the other players tho.
i can second that for alot of games... apex was super fun back when i had decent internet... ziply potato net put an end to any fast paced PVP games for me tho. could probably get better internet out of a arduino and a pan lid
Looking at getting an oscilloscope, but I don't have lots of money, any suggestions?
In the United States, a good bet is to go to a hamfest and pick up an old analog scope. They're inexpensive and fairly simple. The simplicity is a double advantage: many of them need repairs, which are generally doable, and they're good for fiddling with to understand how oscilloscopes are used. Being able to turn knobs and directly see the effect is super useful for getting a good "feel" for how to use scopes and make them do what you want. Without that experience, a modern digital scope can be frustrating and mystifying to use. That said, there are some simple digital scopes out there that are surprisingly affordable. Many of them are just digitizer modules that you hook to a computer or phone to use as a screen and control panel. The very cheapest approach is software that uses an audio input on a computer as a scope, but those are very limited, and if you happen to put too much voltage in, you can damage your computer.
I don't know how common hamfests are in your part of the world.
Also! I went and tried to test the panel meters on the box, and a 10kΩ resistor in series with a AA battery maxed out the meter
okay i somehow misread the resistance
it's actually 150Ω, which is probably where i wemt wrong
Used a 10K resistor, 9V nearly got up to the top (14.5/15, or 2.9, depending)
(i tried the AA, but it barely moved the needle)
@late fulcrum this helps figure out the sensitivity, right?
Okay, I have lots of numbers that I'm not sure exactly what to do with
Another option for a budget oscilloscope would be a USB oscilloscope. The lack of its own display and operating system reduces the cost significantly, but they can still give a good enough resolution to be useful for most purposes. The biggest weakness would be its potential susceptibility to noise from USB power, but I surprisingly haven't had issues yet with that on the one I'm using. https://www.amazon.com/Hantek-6022-Series-USB-Oscilloscope/dp/B091SSF8TC?th=1
I don't think it beats refurbishing an old one if you're able to get one, but it's a nice straightforward option that is a lot more accessible and more than enough for beginners.
Yes, you're getting there. What you can do is use the 9V battery, your multimeter on milliamps range, the 10kΩ resistor, and the meter all in series. That will let you figure out the current that sends it nearly to the top.
If the meter had zero resistance, 9V would push 0.9mA through 10kΩ, so it seems likely your meter is 1mA full scale
how do i set my meter to milliamp?
We need to derive one more number so that we can compute scaling resistors. That number is the resistance of the meter itself.
Unfortunately, trying to measure it directly with a multimeter can overload the meter, so it's best done indirectly, either by measuring the voltage across the meter at a known current, or by varying the series resistance and computing the proportional effect on the total current.
Wait, you're asking how to set your multimeter to milliamps?
ah sorry
It depends somewhat on the meter you have, but you should have a setting for "mA" or "µA" or somesuch
Many meters have different probe connections for measuring current as well
this is the one I have
Ah, for that one, you put the red probe in the "µA mA" jack and set the selector to the "mA ≂" position
and put that in series with everything else?
Right. Then your multimeter and your meter will be measuring the same current (one of the basic electrical laws is that the same current flows through everything in a series circuit)
Kirchoff's Current Law iirc?
Kind of: they're closely related
0.88mA on the Vm and 0.89mA on the Am
now to measure the resistance across both meters
Careful with that, just hooking a meter to a multimeter on the ohms scale can overload the meter
Does the (analog) meter pointer go to around the 90% position when the multimeter reads 0.88mA?
Yes, that seems justified.
and also, neither meter went too far up when i measured resistance
the voltmeter measured 110Ω, and the ammeter measured 14Ω
That's strange, I would expect them to be pretty similar. But now you have the information you need to compute scaling resistors so you can use them to measure voltage or current ranges you choose
I mean, they're probably similar bar the resistor used to convert the meter to a voltmeter
Ah, I didn't know the resistor was still present
(did some research on this, apparently most of these meters are just ammeters with internal wiring to make them do different things)
(or other supplemental wiring)
Yes, that's what I was trying to explain previously. They're all basically low-current ammeters (sometimes referred to as "milliammeters"), and then scaling resistors in series and/or parallel cause them to respond to voltages or currents in the desired ranges.
Actually playing around with them and watching a video on it helped me kinda figure things out in my head
Good idea, that understanding will serve you well
sorry I didn't realise all that last time :/
No worries, every one of us starts as a beginner
but yeah, what should I use as a resistor? and should i think about using a trimmer in the range I need for fine tuned adjustment?
(for the internals)
For the case of measuring voltage, you just apply Ohm's law: you compute the total (meter plus scaling resistor) resistance to pass your full scale current (which we now know is 1mA) at the desired full scale voltage.
For instance, if you wanted 15 volts to be full scale, you'd divide 15 volts by 0.001A (1mA), to get a total resistance of 15kΩ. Your meter supplies 110Ω of resistance, so you'd need to make up the difference, which is 14890Ω.
so 14.9kΩ would be just about right for that, right?
Yes. And as you mentioned, you can use trimmers to fine tune the values.
i have no clue what values exist, I'd probably just get the closest one below the one i want, with a trimmer with the range I'd need to encompass the value i want, and do it that way
how would i wire the ammeter?
There are a few ways to figure it, but basically you'd build a current divider. For example, if you wanted a full scale reading of 1A, you'd want a 1000:1 divider, so the shunt resistor would be 1/1000 of the meter resistance. So 14Ω / 1000 = 14 milliohms
if 1mA is the full scale of the meter, you mean?
Right
cause 0.89mA did about 20% of the meter
20% deflection? That might imply 5mA full scale.
that makes sense
Okay, back to work for me
Yay!
I wanna make things, which is a dangerous mood at 2:30am
especially since I want to make things that require drilling
i just have the combination dial disassembled on a piece of MDF, ready to be mounted
It's nothing but the most hole-some of activities, tho.
wow
So in theory, which one would be faster, an Intel i3 from 2011 with on-system Ubuntu, or an Intel i7 from 2019 with bootable USB Ubuntu with a fast USB drive?
hah ! I got the one supposedly "good" version of my PCB and it has two huge errant holes in the middle. I wonder how many boards in the panel got the same treatment.
Some intern was put in charge for 10 minutes?
"What's the worst that could happen?"
hopefully the next fabbed version is right 🙂
Very well-taken-care of haha
Someone probably had a very bad day that day
If you've done CNC you know things like this happen. I'm a little surprised they thought this one was "good" and put it in a mailer to me though
Indeed
but if someone had to look at every board on a panel their eyes were probably pretty tired by the end, and now I've got a souvenir
a USB drive isn't going to nerf a CPU, the disk should mostly just impact load/save times
Using verbatim copy/pasta from stackoverflow and killing the main website... ?
lol
I'm not sure I do!
It is... It's not meant to be broken. Lol
bummer.
I used to rent a space at my local maker space. I left my spare monitor there. They did some remodeling and moved it and somehow broke it
My ape of a brother smashed my 42" TV.
I may need to hire essentially an artist who can give me basically arty outlines/shapes that I can turn into laser cutting/CNC router files. Does anyone know if the adafruit jobs board is the right place for that kind of work?
It's certainly worth a try, all sorts of makers there.
Right, but all around, like an average i3 from 2011 computer with a bootable USB, or an average i7 from 2019 factory edition
Thanks, I'll give it a whirl. I have a few avenues to explore
There are a lot of variables based on what type of processing your PC is expected to do. Read/write operations such as moving or downloading files will likely be faster with the HDD unless it's a superspeed USB3 drive of some sort, but the i7 will certainly blow the i3 out of the water in anything outside of that.
Jk, the bootable USB will definitely be faster than the HDD
It won't last as long, though, the HDD will survive many times more write cycles.
Mmmkay, so network speeds will not be affected
that's ok
Thanks a lot @thick wind
Just make sure it's actually a "fast USB drive"
Right.....
Would folks expect a laptop backpack that advertises itself as fitting up to 15.6" (says the cavity is 15.7") laptops would actually comfortably fit a 15.6" machine?
Ah I misread the specs
It'll be fine
having no special qualifications to answer that, I would expect it to fit most 15.6" laptops but probably there to exist some exceptions of thick laptops that have trouble
I was like "15.6" diagonally doesn't seem like enough..."
If it's any kind of competitive game, I am out. I don't go near those. If I wanted to hang out with toxic, overbearing, racist bullies, I'd invent a time machine and go back to grade school. 😅
Lol
From initial idea to today!
what was the actual spec then?
15.6" x 11", which diagonally is more than enough
oh yeah that is way different
Repurposing unsold product from the ODT days into new life
Making WiFi controlled grow lights
Neopixel are great for this because you can tune the color channels and make a slow transitioning light that shifts from more red to more blue like the sun
Coordinate it with dusk/dawn times to turn off at the right time and you can simulate day/night cycles for a plant
Luckily the PixelWing are an all in one kind of setup with neopixel and ESP32-S2 all on one board
I could probably also add some environmental sensing to it to monitor VOC and humidity thanks to the STEMMA QT plug
If should be illegal to run an online store and not have the ability to filter out out of stock items.
Ever tried looking for housing through a rental agency's website?
Yikes good pt
that one might actually be illegal (deliberately misrepresenting availability), it's just hard enough to prove that no one seems to do anything about it
So, in other news, I locked myself out of the Watchy. Ordered another one. Super-neat concept, but, I am going to have to wait to do anything with the new one until SQFMI fixes their code and their installation guides.
RIP Watchy. Born 2022-03-21 17:06. Departed for The ElysianElectrified Fields on 2022-03-21 22:56.
Maybe you'll be able to reflash it with a JTAG programmer one day
How would I do that? How can I connect to that chip? There are no pinouts since it's so small.
I was half-contemplating trying to connect RST to GND, but the pins on that chip are TINY
The original code was loaded somehow, and I doubt it was by preprogramming the chips before they were soldered. I suspect there are tiny pads used by a "bed of nails" programmer to flash the code.
The signals you need appear to be on the FPC connector to the display, perhaps it was programmed that way
Is that something you could help me articulate in a fashion that I can put into a GitHub ticket? I'm not familiar with programmers and such, but it would probably be good to ask the question to see how they did it, and perhaps I can salvage it?
Oh... I hit the censor somehow.
Ah, I suspect I know.
I have a song worming around in my head, but I can only vaguely remember one line of it. Googling it is coming up with a completely unrelated song. Is there anything I can do?
I found it! It was my favorite band. I'm so unsure of why I didn't know this!
so last year i became 38, i didn't think much of it, until today when i could no longer read the numbers on quite a few components unlike when i was 18 and looking at stuff that was microns in size.
age is not fun
cuz inside my heart i'm still a child
Yeah, the problems of old eyes are... magnified.
mobile phone to the rescue
anyone know of any good lens attachments for fine soldering for the s10plus ?
i realized i can mirror the display on a pc with quite low latency
I thought about those types of solutions, but ended up with one of these: https://smile.amazon.com/dp/B08HQYH5CZ obviously Chinese, and obviously a stolen design, so they disappeared quick, but there's plenty of others around. It actually works great for soldering little things.
here's one that looks like an exact copy:
https://smile.amazon.com/LED-Magnifying-Lamp-5-Diopter-Adjustable/dp/B08JTXW3HG
but, you're not on the same continent as me, so maybe just check Aliexpress or something?
yeah i had one they stole it from my work space
And, it's way cheaper than a lens attachment for a phone.
yeah true
So, someone stole an item from your workspace? Here's how you fix this behavior. Mark everything in some unique way that only you will recognize. Including your chair if you work in a larger space with cubicles and whatever. Then all you have to do, because you have an urgent need to be more petty than the person that "reassigned" your workspace tools... is find it. Once you do, take it back in the most graphic way possible.
Also, been there, done that. A few times. F around and find out.
If you didn't know it already, I am really tired of bullies. "You didn't need that chair, you were on vacation/medical leave/[whatever reason they can come up with], so we gave it to [insert some other Chad dude that is friends with the Chad that stole your equipment] because their need was urgent."
Also, I practically live for these moments. I will figure out a way to retaliate in the most graphic way while still being within HR boundaries. To me, it's just another practical joke, and you are about to be pranked like a rock star.
Obviously it's not something you should engage in if it's some trivial thing that can be easily replaced. But, let's say you have a medical condition that requires you to have specific office equipment... When you get back from vacation, that equipment has been replaced with some basic, broken crap, and your equipment is now in possession of someone that's obviously confused as to whether or not you are a meek nerd or a cold-blooded prankster.
Not only did they technically violate several different HR rules and employment laws, they rubbed it in your face. Could you potentially pursue this and try to get vindication by contacting HR? Uh. No. HR is going to tell you there's nothing they can do, and at the same time let the Chads know you complained. Chads like cute HR girls. It's just the way of life. So, spare yourself the humiliation... and heed my advice. 😄
i hid rf id tags in everything 😄
hahaha nice
At some point in 2008 or so, the other devs on my team hid an annoy-a-tron device in my cubicle framing. Apparently my hearing's a bit off on some frequencies, because I didn't notice, at all. They then had to adjust the tones, and it basically ended up with everyone in the office going insane. I noticed the sounds, and I figured, these guys did something, because when I asked them, they claimed that they couldn't hear anything...
It might just be me being a Fuddy duddy, but I find pranks like that really unprofessional
You mean my retaliatory pranks, or the original offender's?
The next day they invited me for lunch, I declined, said I had brought my own, and wanted to catch up on work. Instead, I tore that entire cubicle apart. I found the device, and I also ID'd the guy that put it there with some creative sleuthing.
The one where they hid the device
Oh wait, it gets better.
I would be legit unhappy
Oh, it's completely out of line.
But, here's the kicker... guy that put it there... I got a different device, one that would do random HID stuff, like move your mouse and type on your keyboard... Plugged it into the back of his workstation and approved it... No way he could see it because our workstations were in these little cubbies hanging under our desks...
So, since he's also an admin, I turned off the random keystrokes, because I didn't want the device to accidentally you know, nuke production or something equally disastrous.
But, I left the random mouse movement in place. Randomly throughout the day, his mouse would act like a dying bumblebee. Swooping around in circles until it finally fell onto the bottom of his screen. This went on for a week, or so.
Then he finally caved, slammed his mouse repeatedly into the desk and ripped it out of the computer and threw it in a garbage bin. He then went into the office of our boss, who I had already informed, and said boss stone-faced the entire convo where that coworker requested a new mouse and keyboard.
Everyone had a good laugh.
He also got a fancy new mouse and keyboard out of the deal.
agreed but excuses like "wee quickly needed" and thats why i now lock everything up
and it takes me 30 mins longer to leave work
The fact that your coworkers are that toxic and immoral is sad. And I totally understand. I, however, would find ways to mess with them.
i am planning on setting up a trap at my desk
Make sure the trap is not going to hurt them in any perceivable fashion.
something akin to the glitter bomb but more explosive
lol I would laugh so hard if I find out someone placed annoying sound device in my office table (if I ever have one lol)
because being deaf it'll annoy others far more than me
lol
Deafness is a low key super power
use a standard alarm system siren
An ex of mine needed hearing aids and she said she loved just turning them off and relaxing
ha augmented life is cool
I used to work with a blind guy. He had this amazing Braille keyboard, and he was super fast and really good... some days though, he would sit in his office and just fall asleep... I asked him about it, and he was like, yeah, the only thing I have going on is this rhythmic tapping against my fingers, it gets a bit soothing at times, so I fall asleep. 😄
Unfortunately I do not have such an "obvious" disadvantage as being deaf. I have scoliosis, which requires me to sit, and stand, throughout my day, or my back and neck basically locks up. The S-curve is pretty severe. Has been since I was young. So I found out that I could get more ergonomic equipment to help me function better in an office, and I obviously used this to improve my work-life. Some people, however, felt like I got special treatment, so they would try to "gently" remind me of my status by removing said equipment.
My cousin had it real bad. She had major surgery and is much better
I haven't gotten to the point of surgery, yet.
jeez. invisible disabilities is the worse 😦
I actually got a chair and desk from Autonomous and they have been life-changing. Sure, they're not Herman Miller, but they are amazing.
She was really seriously disabled by it. Not discounting your condition at all, I just remember her being unable to basically do anything
I have days like that, sure. But, most days I am just too dumb to give up.
I walked around with an impacted hip that was dead from necrosis for about a year and a half before I even asked a medical professional about why I had a hard time walking. At that point I was using a cane to get around. When they realized what was wrong with me, they prescribed me Tramadol until my surgery... When I took that first pill and it blocked my pain receptors, I basically fell into a heap, crying, because I didn't even realize the amount of pain I was in because the onset had been so gradual.
Three days in the hospital recovering from a total athroplasty on my left hip (titanium, no cement), and I was back home. Felt pretty fragile, but determined to get better. My first "physical therapist" tried to downplay my elevated (at rest) heart rate of 120 bpm, and I kept telling them that it was not normal for me, but they kept making excuses. So I called the nurse that was in charge of my meds and stuff, she told the guy to back off, and she immediately jumped in her car and drove to our house. Turns out, there were some issues with the meds, but they fixed it.
Then, comes this absolute beast of a man. He was my new physical therapist. He would push me, yell at me, make fun of me for giving up... and at one point I was just so exhausted I asked him why he was trying to make me angry... His answer... "Half of my spine is titanium, I have two full hip replacements, and part of my neck is all metal." After that, I never questioned his instructions. I am glad he confided in me. He could have just quit and been good.
But I digress. I am feeling better now. My lower back has been getting a bit worse from compensating for the scoliosis, but I had some physical therapy and have got a new set of exercises that are actually helping, so I remain hopeful.
Not even sure why I am telling all of you all of this. Maybe you think I'm bragging about how hurt I am, as if it's some kind of merit. Nah, I know I walk in the shade of those that truly suffer. Their pain, a sun, mine merely a shaded copse near a stream.
😄 yeah hope you keep improving
I hope so for myself too. my vision dont track at all, and im permently dizzy and brain is constantly noisy
That's rough. I hope you find a way to raise a pathway of calming stones you can traverse across that river of overwhelming noise and distraction.
thanks. I kinda doubt I'll work again as cnc machinist. driving is off and on ability for me now
today isnt too bad, but theres days I wouldnt drive 3 blocks
That's harsh... not being able to transport yourself is crippling. Especially in countries that rely heavily on motor vehicles for transportation. I have noticed an increased sensitivity to bright light. I have entirely switched to dark mode past sunset, and I tend to use themes like Gruvbox for my OS.
Driving at dusk can be extremely difficult for me.
im getting used to handcam vision
that sucks. and yep transportion is pretty important, since usa they design for cars not people
My neighbor is a quadriplegic, and he has to schedule his trips days in advance. Sure, it's an inconvenience, but it's also very hard to predict weather and such. "Hey, am I going to be stuck at a Walmart bus stop in pouring rain, while in my chair, while waiting for a bus that is already 20 minutes late for no apparent reason?"
I love this guy, though. He's so funny, so full of life and compassion.
I basically never see him in the winter, or at any time where the temperature drops below 23'C. He hibernates like a bear over winter. Then he'll be hanging out on the little street we live on, just chatting with people. I usually try to make it out there a few times a day to talk to him. Some people try to take advantage of him, but he's got a tight inner circle that protect him from most of it.
theres always crap people
This is where I pause for the night, because I am about to say some unflattering things about the social status of those that take advantage of others...
yeah. have a great night
With this: What type of resistor should I use? Do I need the full output wattage of the circuit?
Generally small resistors are fine: the voltmeter scaling resistor only has the meter current flowing through it. Dropping (say) 15 volts at 0.005 amperes is 0.075 watts, so a quarter watt resistor would be fine.
For the ammeter, you'd be dropping on the order of (0.005 amps times 14 ohms) times 3 amps, which is 0.21 watts. You might want a half watt or one watt resistor for that one.
The voltmeter one is 1mA, the ammeter is 5mA, but I'm still not sure on the wiring of the ammeter
There are two major approaches for ammeters. There's the direct approach of just putting a scaling resistor in parallel with the meter. This is simple, but if something goes wrong, you get the full current through the meter coil, which would be instantly destroyed. The other passive approach has an arrangement of series and parallel resistors that's more complicated, but protects the meter. There are, of course, also active approaches with op amps and the like.
There's a good writeup here: https://www.electronics-tutorials.ws/blog/ammeter.html
the article shown only really goes into parallel resistors, with the only series thing being just how they're configured for multi range viewing
unless I'm misreading this :/
Episode 4 of The CircuitPython Show is out, featuring todbot talking about sound on Arduino, CircuitPython and more: https://circuitpythonshow.com/episodes/4
Yeah, it shows a series resistor representing the meter resistance, but not really a separate one
Oof the cost of a single bagel with nothing on it at the place in town has gone up $.75 in the last 6 months
Inflation gives no quarter.
And sometimes it takes three. 🙂
Where do you get the puns
Their labor and lease costs must have gone up a bunch? Things like flour haven't but maybe the fixins have
whoops, wrong message
Lol
The dollar store, apparently
What she said.
lolz
If anyone is interested in watching me act the fool.....
https://youtu.be/HUryWzlFQK0
(be forewarned -- this is for a brand channel, so it's semi-advertorial...but not too bad.)
Preparing consigned parts for your manufacturer should be easy, but customers make several commons mistakes that delay the process.
- Double-check the shipping address. (We have multiple facilities covering several states)
- Include overages in your kit. Reel-fed parts require a few extras to properly feed the machine. See our whitepaper ...
Anyone here ever hacked in a laser tape measure module to make it work with a arduino?
It'd be dependent on the specific module.
You're either going to get an analog voltage out, a PWM, or some serial data via I2C, SPI, UART, etc...
Going to need an o-scope on the outputs to know.
Hmm i might have to invest then. Been reading articles about people working with them but only one person has reverse engineered the firmware to work for a certain type
You know you can just buy a module, right?
Order today, ships today. GP2Y0E03 – Optical Sensor 4 ~ 50cm I²C, Analog Output from SHARP/Socle Technology. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
Just have to get one for your distance of interest.
And all the different pins are labeled so i dont think ill have any issue figuring that out its just getting firmware to work. And yeah those are a bit spendy to buy from everything ive seen
That one is $12.
I don't think you're going to get a laser tape cheaper than $12
Price increases with precision.
Thats an optical sensor. Is that the same as a laser sensor?
Yes.
So i could shoot a laser and then read the distance with some math
Order today, ships today. VL53L4CXV0DH/1 – Optical Sensor 0 ~ 236.22" (0 ~ 6m) I²C Output from STMicroelectronics. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
Most of them do the math for you.
You get bits out that you can convert to a measurement
The modules shoot the light for you.
Might be able to go higher on the laser power but what i was reading is about having to sync the pulse with the recieving sensor
No extra laser needed.
Yes -- the maximum distance isn't governed by power as much as it is modulation frequency.
Lookin for around 15 feet or so. Got a friend with a mill that i want to make automated adjusters for
So when you select your sensor -- select one that includes the max distance.
Figured a laser tape type setup could be kept out if the way and still work well also providing the laser dot to know where the blade will hit
blade?
But....won't the blade always be in the same spot?
Are you trying to project a cutting line down on the stock?
is this an appropriate place to ask about rpi restock updates?
I have no idea -- but I saw some on pimornoi this past week.
You adjust a beam that the saw runs on to get the blades at the right placement
Do you mean to the adafruit store?
yeah
@velvet pelican I suspect the easy thing to do would be separate the distance measurement from the laser indicator. Just add a laser module to your design.
I think I usually see folks directed to support@adafruit.com for that kind of thing? I'm not 100% sure. I don't think you'd get yelled at for asking here, but I don't know that you'd get a definitive answer either. I feel your pain, it's a frustrating situation!
thanks @lusty fossil just don’t understand who is buying all the pis :/
People I dislike!
Yeah -- looks like Pimoroni is back out of stock.
do you know about rpilocator.com?
Not sure if there is volume for this video. If there is mute it as it will be loud
Considering the Pis I see being sold for almost 2x MSRP, combined with everyone who actually need a couple for various projects, I can't say I'm surprised they go as fast as they do...
@deft yarrow the best thing to do is just sign up to be notified when they're back in stock and jump on the email when you get it.
Fortunately I only ever need pi 3s
Ah, Rpilocator.com. It's like Octopart or Findchips, but for Raspberry Pis.
Aren't Pi 3s super hard to get these days too?
I've seen more around
id like to get one of the rpi4s…. nginx wouldn’t know what to do with itself and all that raw power
The day Pi Zero2Ws can stay in stock for more than 24 hours is the day people finally stop needing Pi 3s for everything.
@velvet pelican That is a cool mill. Just add a second laser.
I admittedly bought a single Pi 4 way back when, just to have. Still haven't put it to any good use, though I did finally put money down on a display for it...
@split field so that beam that the saw runs on is adjusted at each end to match the log. My thought is to have a laser distance sensor on each end that matches where the upper horizontal blade runs and then have some motors that automatically adjust the bean height. Currently it woukd cut about 20 minutes out if adjusting the beam
Hooked it up to the TV to make sure it worked, then left it to gather dust. Meanwhile, I don't even remember testing my Pi Zero 2W...
i’m using my 0w for irssi/tmux, transmission and hosting some files with nginx….
it’d be nice if i had a little more power tho
wow I lied about rpi-3s, octopart was incorrect
glad I had my job buy 5 of them a while back
@velvet pelican I suppose I don't understand the setup process well enough. Or how a 15' laser rangefinder does you any good in that situation. I'd probably resort to a bubble level (old school) or a modified one with a liquid level sensor.
I wish rpi-locator worked for pi 3s
Does it not? https://rpilocator.com/?cat=PI3
Find Raspberry Pi computers in stock with this simple to use web application.
Oh
I was misusing it I guess. It didn't make sense to me that they would exclude those
They do seem to exclude anything older, which makes sense since they're out of production. Pi3 should still be active...
Yeah being level isn’t good for that. Currently you adjust the one side of the beam down near where it needs to be by a hand crank then you go to the other end 25 feet away and drop it down then you come back to the saw end and adjust thr blade height to hit the log in the right area to het the most lumber for your cut then you put a level on the log and figure out how far out of level the log is. Then from there to take the far end adjustment and drop it to the off level of the log and then start your cuts. My thought is to have a laser at each end watching for the distance to adjust down within the proper footage to stop the motor from turning. Then ill have a button to from the motors down a little more to hit the proper position for maximum lumber cuts. Should cut a minimum of 15 minutes out of each adjustment which is alot when you typically have to adjust twice per log
The saw has three blades so it cuts the dimensional board out per run
This is one of my hobbies so i enjoy it. And its useful for someone more than me so that makes it even better
Since this is off topic
I am gonna post something off topic here
Painting break from circuitpython
Currently experimenting with the circuitpython audio mixer
Mixing (virtual) paints, mixing audio, it's all good
I have a feeling that RP2040 is getting closer and closer to becoming a Teensy replacement
It's cheap and open source
If I could get comfortable enough programming the PIO to encode/decode PPM modulation, it would encroach on even more Teensy territory.
Not like Teensy, having such a bad attitude to the open source community
I have not detected any bad attitude from the Teensy manufacturers to the open source community. They've contributed a bunch of useful libraries I use (and some AdaFruit use too)
Even putting DRM on their board to force you to buy stuff from them even if you want to build your own Teensy
My main modules these days are Teensy and ItsyBitsy with the occasional Feather thrown in
And that DRM crap is multiple times more expensive than the entire RP2040
I think the only DRM is the bootloader, I can't get bent out of shape over that.
Their audio processing eco system is so good
And the price and the bootloader just ruined everything
That's why I am so happy seeing RP2040 gaining the ability to do audio processing
I don't find $12 very offputting, but it is admittedly more than $4.
12 USD?
that's teensy LC right?
48Mhz M0+
vs 133Mhz M0+ x2
I hope the non-LC can be as cheap as that
Why would one need DRM on their board?
Can't you just copyright the firmware/whatever it is?
(why did I use copyright as a verb when it's implicit)
iiuc, they are using "DRM" as a blanket term to refer to mfrs restricting their product's functionality to only work with approved components.
I don't know much about the topic but I don't think I've heard any attempts to justify in terms of copyright (even setting aside the discussion of how broken the copyright mechanism has become) stuff like Secure Boot, or digital signing mechanisms where the way to get onto the whitelist is literally just to pay Microsoft a yearly fee and that's it.
(though integrity of firmware does seem like an important thing to protect, in principle)
@fading hare What website builder did you use for https://www.nascentmaker.com ??
Learn about CircuitPython, Arduino, IoT, OpenSCAD, as well as 3D printing, and software topics such as Python, Jekyll, Ruby, and C/C++.
Jekyll + NetlifyCMS + Netlify
So not Wix or Godaddy or anything like that??
nope
OK, thanks
Got it. It looks great!
with netlifycms you can actually have a complete publishing workflow via git because it'll create previews and whatnot as branches
thanks
NP
Netlify is free as well, so check it out. And Jekyll is simply the best. I have tried a bunch of static site generators, but I keep coming back.
Just found out my twin is running for parliament
Do I need these massive shunt resistors for what I'm making? And are they really low resistance, or really high resistance?
I think shunts are low, to use little energy and ?allow you to determine current usage by reading the relative voltage drop across the shunt resistor?
Just had a quote for some 'professional grade' development software that supports all arm micro controllers from IAR Systems AB. I needed a 'floating' licence so I could use it on my development system and laptop when on site. I have around four or five projects a year that I would use the software on. £4900 🤣 😑 And I thought Arm Keil was expensive.
https://www.reddit.com/r/programming/comments/1mbd3s/fizzbuzz_enterprise_edition/
- The linked repo
- The top comment on that Reddit post 🤣
Anyone know how a loan servicer for like an around 100 dollar product can make any money at all if they offer "
4 interest free payments of x". If everyone pays it off in 4 payments, won't they not make any money?
Or are they gambling that we're all so broke many of us won't be able to pay it off that fast?
I think they'd charge merchant fees, for one, plus late payment fees definitely
I was considering doing that
But this was just a shirt I really don't need
I'm usually in the "20 dollar target shirts are fancy" gang
Possibly there's a kickback from the product seller too, since in theory having a loan option available will generate more business for them.
https://github.com/TheMindVirus/macropad/tree/archive/sketches/Tabletop - howzat
Tabletop Simulator support for Macropad RP2040 as a numberpad for Scripting Buttons
and on the side controlling a virtual remote controlled Warthog
(the engine code for this is really bad)
Adafruit Macropad RP2040 with Transparent Lego Keycaps and Sounds from The Crystal Maze - macropad/sketches/Tabletop at archive · TheMindVirus/macropad
Wow
I need to re-route a package from being delivered to my door to being left at a store for the delivery service (I won't be home to sign). Would folks expect that to add a day to the delivery time? The store isn't far away
Depends what service and how far in-transit the package already is?
hmm, the package is on the other side of the US rn
If you JUST ordered it and it hasn't been processed yet, shouldn't affect anything.
hmm ok
If it's already been processed, it might take a day to reprocess it, depending on where it is.
kool thx
LoL. And sadly does not come as a surprise. I've been looking at using CMake. Apart from the pain to find the GCC for ARM downloads (the package on ubuntu is so very old) it looks to be simple to do. The hard bit will be ensuring the file for flashing the code to the chip is in the right format. I am hoping that will be simple too.
...
Am I wrong or is this diagram missing the dimension I've marked in red?
Sure looks to be missing. Doesn't seem to even include a measurement you could extrapolate from.
Yeah bummer. I may have to live without it
Lots of missing dims on this part
But it may be the best I get
Are the limits on certain products like Raspberry Pi a daily limit or lifetime?
Was hoping to get one for my little brother and me but I could only buy one today
I have this cheap espresso machine
https://www.walmart.com/ip/Sowtech-Espresso-Machine-3-5-Bar-4-Cup-Maker-Cappuccino/126476128
and it recently stopped working: when set to steam, a lot of air leaks out from places other than the steam wand and there is not enough pressure out the wand to steam milk. I know nothing about anything; does it seem feasible to attempt to repair it, or recycle its parts to build a DIY steamer? (I'm fine with breaking the espresso making functionality if that helps, I only care about the steam wand.)
This "stovetop steamer" exists but costs twice is much as the above espresso machine:
https://prima-coffee.com/equipment/bellman/50ss
AFAICS, the stovetop steamer is simply a sealed metal cup with a valve + wand coming out of it, and a handle for holding the device.
I'm unsure about the pressures involved with this, but if I learned anything in school, it's that proper pressure vessels are anything but trivial. Probably possible to do, but I personally wouldn't be comfortable doing it
ah ok
I don't think it's a "your house will explode" issue, but it just isn't something I can personally wholeheartedly recommend.
The whole field of mechanical engineering exists because of the need to develop design methodology for pressure vessels during the industrial revolution
makes sense
I think there are certainly more dangerous projects you could attempt, but this is not without risks. You'd hate for it to pop while you were nearby or blow shards into your other appliances/loved ones
this is the third espresso machine (all whitelabels of the same thing) I've had to toss over the past 5ish years. I was hoping it would be possible to build a more reliable and cheaper steaming device if one dispenses with the espresso requirement
That's a bummer
properly designing a steam dispersal device doesn't seem trivial to me, makes sense that it's not trivial to find a good one
the stovetop one might be more reliable, but it's not cheaper. And I can't really know whether it's reliable without buying it
would a sealed cup with a wand coming out of it and a valve opening/closing off the wand to the cup not work?
I may be not picturing what you're talking about right
I suspect that would probably work, but the devil is always in the details.
the product picture on my second link is exactly what I'm talking about
Ah yeah, probably. And I suspect these are rigged such that the pressure never really builds too high, but there's a good bit of fine tuning to do there
watching the demo video, I see there is a safety valve built into the handle to prevent the pressure from getting too high
yeah
it does look like a good piece of equipment. Having trouble justifying the price though
Yeah that's a good bit of cash
Unrelated, I got a new laptop and I'm very very excited
Comes tomorrow
The last time espresso machine repair came up, I pointed out that there were actually google hits for "killed in a coffeemaker explosion"
Yeah it's an issue.
Interesting reading, if you're like me. https://www.asme.org/topics-resources/content/the-history-of-asmes-boiler-and-pressure
They take this stuff VERY seriously.
was it by way of shards from the carafe?
I assume so? I don't know much about explosions, but I don't think a small carafe can generate a powerful enough pressure wave to do that
Ooh lunch time! Sandwich time!
I was thinking sharp glass from a shattered glass carafe
Yeah same, I was thinking shrapnel rather than the other methods
scary stuff! Glad I only drink redbull
one of the whitelabeled espresso machines from a year or two ago had a recall of the carafe, replacing it with a metal one
(sugar free of course)
of course
because that makes it healthy
I don't have the carafe in the machine, so a bunch of those dangers don't apply. But pressure is still a risky business
Thanks, logo designer for a standards organization
One quick way is to install Arduino, load the ARM boards, and use that compiler suite
So, I don't know what to do. There were things I wanted to do before S&T, but my Furry Exothermic Lap Inhabitant & Nocturnal Explorer (think fun with acronyms) has decided to perch in my lap so I can't get up. [And, of course, while I typed that she finally did get up, so now I can go do things.]
chemex borosilicate pour-over coffeemaker ftw ;)
you can fettishize that just as easily
Picked this up today
analog meter wet lips drooling
I have no clue what it does
Looks like something to do with air/fluid flow
Those illuminated pushbuttons are nice too
Idk if this is a feature in nicer cars, but I'd like an indicator of roughly how many gallons away from full I am. I can always over estimate and have the change go back on my card but iirc that takes a little while
I have not run across that, but I agree it would be handy...
There must be a reason it doesn't exist? Sloshing is a concern I can think of
I see gallons from empty fairly often. Sloshing is apparently something that can be dealt with.
I would think it is, some sort of statistical analysis/averaging I would guess? I just don't know enough to say.
I'm trying to get a question about materials science/metallurgy answered. Does anyone know a discord that would fit that? I can't find one
I'm sure there's a metalhead discord somewhere.
Lol
Sometimes I wish google would track me harder, and realize that when I google "steel shafts" I'm really not talking about golf clubs.
Why do you think I'm still up 🙂 lol
Indeed it does
I spent a lot of time at the local high schools science class when I was a student there, it wasn't long I got a free pass to look after the science and computer lab having shown my dominance as a scientist at day one.
I ended up burning myself with acid, blowing up a flask with hydrogen in it, making a mess of the lab with hours of cooking chemicals to make rockets and then finally got my privilege's removed "teacher took away my key" after some guy attacked me at school and i defended myself and it turned out it was her kid.. guess who failed her class that year..
Oh, gosh...
Completely unrelated, do y'all like Agatha Christie's books??
I did when I was younger but I no longer remember them well
TFW wirecutter tells you you already own the best of a product you wanted to replace with a better.
Time to sell your product and make a profit off the hype
Jk tho, good stuff is nice
It's only 20 bucks new
I'm looking at professional grade
Which are a good bit above that
Really solid mobile web design, great job folks
I'm learning AWS for a cert & I love how useful it is
but sometimes I balk at how complex 1 feature of 1 service can be
https://github.com/TheMindVirus/macropad/tree/archive/sketches/QCodeRoG - this might be of interest to some
I got data loss when I tried to capture Q_CODE.LOG directly on the macropad, but a micromod was able to capture it
Got a POST card from RoG recently?
i can find less about this than I'd like :/
almost looks like some kind of autoclave control or something
maybe a vacuum former?
i thought I'd find more about it online
"The company sprung from GV Planer Ltd., founded in the 1950s, primarily a design and research consultancy making one off products for research institutions."
Planer continues to help push back scientific boundaries helping scientists and medical professionals in over 70 countries preserve, protect and nuture their valuable samples
that's why you didn't find more about it
it's probably a one off
or a limited run
probably a sample climate control if I'm reading the interface correctly and I'm understanding what the company does correctly
Had a peek inside
datecode 71
I'm... probably going to end up just taking it apart, sadly
i have no use for it in its current state
Whatcha making with them pillow bearings? Also for steel it depends on what you need. The simple way to find what you need is entering the size and dimension of the steel otherwise google tracks to whoever paid the most to pop up first
more mystery boxes!
Kind of a medium story what I'm making. Short story is large low speed cam shaft
It's funny, I learned a while back that some critical US military systems still run on the original style of floppies, the kind that were actually floppy
Sadly none of them worked😤
bit rot 😦
watching anime on a 4bits LCD display on an iPod Mini

The craziest thing is that the SoC of this monochrome iPod is capable of decoding video in hardware
Apple for the most part doesn't mess around
So you need something like chromium?
Or just straight raw steel
I'm leaning towards 4140 coated steel
I'm trying to balance cost, corrosion resistance (incl galvanic corrosion of aluminum components on the shaft), reliability, and structural soundness
I have to reach out to an expert regarding galvanic corrosion, I need to figure out how much of a big deal it really is
Unrelated, any Mistborn fans?
Depends on the environment and the joint.
Yeah that's my understanding as well
Environment isn't oceanside but does have a heavy marine layer, outside. So I have some concerns about galvanic corrosion between say a 316 shaft and 7075 aluminum mounted components.
I wouldn’t think aluminum would corrode due to coastal air steel absolutely will tho. Could just gold plate the steel tho
Depending on what you want to speed
There's a galvanic reaction between aluminum and stainless that is made worse/possible by electrolytes like salty air/water
It makes the aluminum weaken/corrode
unrelated: Ahhhh! I pick up my new laptop in like 1.5 hours!
Gold plating a 7-8 foot shaft is just a smidge out of budget 🙂
But getting an already coated 4140 shaft, or even paying to coat it, is reasonable
Cool
I mean, once the first piece of metal corroded, the experience galvanized people to fix it.
lolol
I will say that of the stories of weird stuff that happened in college, an astonishingly high number of them feature materials engineering students.
It seems like a fascinating field, though, even if it does drive you half mad.
They are an odd bunch. I mean they are basically chemists after all, and chemists are known to be strange
I guess chemistry frustrated me because I realized that, now that I'm adult and could buy chemistry supplies for funses, the only thing that I'm really inspired to make is a pipe bomb because everything else feels like too much work.
Whereas at least with materials science, it feels a bit more immediately practical.
IDK, the chemists I knew in college got up to some serious hijinks.
Although I guess the inherent uncertainty involved in alloy construction and metalurgy would still come to the same place where I just don't like that I can't sit down with a calculator and equations and actually figure chemistry stuff out. It's all like "It's organic chemistry, here's weird stuff"
Yeah, that wasn't saying that making stuff blow up for fun wasn't part of being a chemist.
Then again, I do enjoy baking quite precisely with a scale instead of cups.
Indeed, baking is great
I use cups because that's what all my mom's recipes use but I want to find some relevant recipes from the civilized world and get a nice kitchen scale
I have actually converted some of my mom's recipes to weight.
might be a fun project for us to do together some time. We don't live that close though
Somehow lately enough people fussed about it that a good chunk of the cool baking cookbooks I've encountered have weights.
My mother-in-law's recipes lack any sort of measurement whatsoever.
oof
Although they don't have a baking-things-in-the-oven culture in the same way.
I learned some interesting facts about ovens in the UK and possibly western europe in a college class, I can't recall them tho :/
What I ended up doing was using a table of cups-to-weight and that was good enough.
I mean, anything with cups is going to vary by an astonishing amount.
Would not volume also vary by moisture content?
If it gets crumbly. (/gerry)
My boards gave arrived!

I got my laptop! I hate windows11!
I am actually kind of liking Windows 11. Then again, I am not an old man, rigid in his thinking, like @lusty fossil over here. 😉
(hoping I am older than you)
I just thought that windows 10's user experience was nice and I find 11 less intuitive by far
You can make 11 look almost exactly like Windows 10. If you just start configuring things.
But, I like the default experience.
You can, I just don't see why they messed so much with a winning formula
There are other things they could have improved, like explorer
@wooden schooner, I'm considering Linux I just need to see if all the programs I think I might want exist for linux
explorer is still solid, and I don't think there's anything better
if you're a Mac user and you like the weird lanes, I am sorry for you
@lusty fossil feel free to ask about programs for Linux, and how to best run Windows ones. 🙂 I have some experience.
Anyway. My primary workstation is Manjaro.
My new laptop is Windows 11.
I'm just now looking into the Adams family (not the media property). I think I want Adam's View.
My cheap laptop runs Manjaro, and my RPi 400 runs Manjaro ARM Sway.
I don't even know what that is.
This is a CAD machine so I can't be too hampered
What would hamper you?
It's multibody dynamics analysis software
so Windows is the only option
A decent number of engineering programs are windows only
and if it uses certain hardware acceleration it might not work inside VirtualBox or similar
but, it's worth giving it a try before you commit
I really don't think I can afford adams any time soon, but I want it.
I'd start with running Manjaro KDE on a USB drive (get an A2 drive or you'll be annoyed with how slow the drive is) and install VirtualBox and see what you can try.
What I really need is much simpler than what adams offers
So, Adams is the program we're talking about?
Yup I'm sleepy so I'm drifting conversationally
I can't help you with finding an alternative there, but I know there are plenty of scientific and engineering applications for Linux. Maybe there's an alternative.
Yeah I'll look around
But, it would definitely be worth testing in a VirtualBox image running Windows 10 (on a Linux host). I am partial to Manjaro, because it's very easy to configure and tweak, and it's pretty robust as long as you don't try to run the latest and greatest kernel.
and it also looks amazing
and I can run it in dark mode with Gruvbox... my light sensitivity has gotten worse over the years, and if there's too much light, I get ocular migraines that are brutal. Like giant cones of swarming static just closing in over my optic nerves.
Cool thanks!
Wow, things are getting good in the Linux world. Been a few years since I had to do some micro controller work. The Segger J-Tag tool chain just works on my Linux box. I can avoid using the overpriced IDE's and use CMake and the Arm GNU tool chain. Still have a lot to catch up on but, as they say, today is a find day for science! 🙂
I remeber a day when to get this kind of view meant a Windows VM, fighting with USB pass through and asking the boss for a $2000 purchase order.
Kewl. I tried for years to get FPGA tools running under Linux and never succeeded. Fortunately, eventually IceStorm showed up and solved that problem (for Lattice chips, anyway).
I am sad that I ended up leaving the 3D printing engineering software startup I was at before I got to do horrific things to Windows in support of fully automating Windows-only software.
🤣
I'm officially bad at this :/ Tried building the PSU but I got overwhelmed very easily and I just kinda wanna buy a new unit instead
At least you gave it a go. And that is what counts. So many concede defeat before even trying. I fail at a lot but eventually I win. 🙂
I can't speak to the health claims this drink makes but it sure tastes good.
What is that third 'activity' logo at the bottom? It's either yoga or Tux. 🤣
I think yoga but who wants an energy drink with yoga?
I thought that too, so must be Tux, need the energy for leet hacking on linux. 😉
Maybe it is supposed to indicate being awake without being jittery? That's my best guess as to why yoga is on an energy drink
That makes sense
Does look nice. 🙂 I've recently got into fruit teas. Got told off by my doc for drinking too much coffee.
I drink one simply caffeinated drink and one seriously caffeinated drink a day. I think I'm OK?
This is my new obsession. 🙂 Keeps me off the coffee. https://twinings.co.uk/collections/fruit-herbal
I like Celsius, but I have a pretty bad energy drink fix. 
Me too
Is groupme still the best/most popular cross platform texting app? My boss has a tendency to start a new group chat all the time. A platform designed for group chatting that works on all (well windows phone can be excluded) would be good, I think
Linus admits nothing. He just blocks your PR and tells you what a FVKN i-d-t you are.
Discord is great, if you need encryption, try Telegram or Signal. Signal is more secure, and probably in better custody, than Telegram, but both employ end-to-end encryption (at rest, in flight, at rest)
And Telegram is full of crypto NFT monsters.
Hmm, security is probably good. But my boss isn't super techy so something that is pretty private (e.g doesn't have influencers/a social media aspect) is best.
We just need to manage texting among like 5-10 people
is your discord account different than your account for discord support?
Good way to narrow it down to one..
Which CPU are you using.. and how much RAM?
https://github.com/TheMindVirus/liquorice - made a POST Card. Would you like some Strawberry Liquorice?
Matrix?
It also uses some Signal protocol based thing
Meh. At that point you're better off using proper masking and plain IRC.
?
Matrix is a client that supports many protocols, IRC included.
Are we talking about the same thing?
Yeah.
I'm talking about https://matrix.org
That's it.
Yeah, bridges
To allow IRC or Discord users to interact
brah, let's be real, you're quick to disagree, but you are also really bad at taking criticism
Those show as separate accounts though
it's the other way around, to allow Matrix users to interact with IRC
...it works both ways?
and there's no way to confirm that Matrix account from standard IRC, essentially forcing people to validate outside of IRC just to make sure that they are talking to someone real
You don't need to bridge anything
You probably need to if it's a non-technical audience
create an actual IRC account somewhere, and then go find some channels with Matrix users, and tell me what you see and think about that
The only thing you've accomplished by using Matrix to post on IRC channels is obfuscation, not privacy, necessarily. And, that is abused more than it is actually used.
Why is there a Genshin Impact room
Yeah, that's what you get for bridging using IRC
At the same time, a community might have a just-Matrix room/channel
I get it, you are too young or whatever to ever have used IRC...
For security or something
Yeah
I don't know IRC well at all
But, Matrix users are a plague when it comes to IRC.
Get them off IRC :)
What I really meant was
Matrix as a standalone platform sounds good
Meh. Don't need to get them off of IRC. They're just the equivalent of the squeaker kid on the CoD server...
I wasn't thinking of bridging and all
Have you explored Mastodon?
Uh, once, on someone's server
It's also distributed.
I've seen a lot of NSFW stuff there
No idea how
I wasn't looking for it
But Federated
¯_(ツ)_/¯
I guess that's what you went looking for. By way of trying to connect to your "peers" online.
?
I only got Matrix because I needed it for some community
Because Discord ToS
I tried Mastodon because a friend suggested I use their server
I was talking about you "receiving" a bunch of prn from Mastodon.
Also had some experience with Guilded and Rocket.Chat for this reason
Uh, I just went to the Federated feed
Of which server?
Of a regular Mastodon server a friend set up
Probably didn't filter anything
In the beginning
He got rid of those other servers from the feed
¯_(ツ)_/¯
No idea how Mastodon works
Uh. So, yeah, you have to actually add those federated server links.
I can't imagine that guy adding those links
From my personal experience, he clearly likes avoiding that
Allegedly.
Allegedly
Are his emojis and or profile pictures mostly Pepe the Frog?
I am curious now. What avatar does he use? Feel free to PM me so I can tell his fortune.
Naturally, I don't trust that
You're probably going to do some image search with that avatar
It's just a Minecraft-like face on a blue background
Nah. I don't care, bro.
The only time I've ever traced someone online was a person that caused physical, and psychological harm to my friends and family. Found out they were in jail, and subsequently prison, so I figured I did not have to continue said search.
Ouch
Huh
Does that mean your swap memory goes boom?
Or your entire OS?
just load your entire os into a ramdisk
or store it in an initramfs
A flash drive is not RAM.
Huh
Aren't you supposed to be able to unplug a USB after it loads an initramfs?
I always thought loading an initramfs means it loads everything into RAM
Which allows the USB to be unplugged
Apparently SquashFS doesn't decompress everything into RAM
It just gets individual files when needed
And I recall SquashFS being used in most ISOs
Anyone I'm CA? How do you deal with site where they don't give you an obvious way to opt out of tracking? Many of these sites try to make you reach out to them including sometimes their legal department.
Not sure, what site?
I meant in general
On my phone?
Some of those dialogs are harder to remove than others.
True
I've heard rumblings that our legislature is going to crack down on these companies but nothing has changed yet
I love capping a long week with Indian food
I ended up having Thai
Nice, love Thai. I was walking towards a Japanese place but the smell of Indian cooking drifted out and I couldn't resist
I'm trying to find something I was looking at thru the Google search app on my android phone. Not chrome, but the search app. Does anyone know how to find that history? I can't find out online
Got it
I have the makings for Indian in my fridge.
Thai is frustrating because I checked out a Thai cookbook and realized that getting all of the ingredients to make it fully from scratch was too much of a hunt.
Nothing's better than biking through a fairly Indian neighborhood and having the lovely aroma of onions being fried wafting through an astonishing number of windows.
You know the whole "you gotta pick 4 of these foods" or whatever memes? If I could choose, I would keep Indian food, Vietnamese food, and Swedish Kebab Pizza.
I know "liking sushi" is a bit of a meme at this point, but raw salmon is one of those foods for me
Swedish Kebab Pizza sounds interesting.
I married into an Indian family so Indian food has to be on the list for me.
This weekend on Sunday we're going to a local Korean market with a hot food line and they've got a bunch of interesting concoctions including something that contains both rice cakes and hot dog.
This sounds like a Swedish Kebab Pizza sort of invention.
I also still need to go to Scotland so I can get a munchy box.
It isn't strictly the same thing as true Japanese food, because it's been heavily modified by moving to America, but the style of teriyaki I grew up with in seattle/the PNW is my absolute favorite comfort food
Does sound like a ram issue. Not all ram allocations can be moved to swap. I have had an issue with a lenovo laptop. Had one 16GB dimm with a free slot. I got another 16GB dimm, with all the same settings as the original. Laptop said no. Looks like they are forcing us to use their over priced memory.
My laptop runs VMs just fine with only 8GB RAM and a lesser CPU.
quick reference guide including specifications, features, pricing, compatibility, design documentation, ordering codes, spec codes and more.
Seems to have all the features for good VMing.
https://www.ebay.com.au/itm/AC-DC-Volt-Converter-220V-230V-240V-to-36V-7A-Power-Supply-Switching-Transformer-/253855611844?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=711-127632-2357-0 Would this be an okay option for getting the voltage I need? At the moment I have a huge transformer, and I want to empty out the insides a bit for ease of use, and Wasn't sure if I can replace the transformer and rectifier with that board instead
Yes, that's a switching power supply, so it does the same sort of thing with a smaller size and weight. The drawback of inexpensive ones like that is they can have marginal insulation.
That's something I can fix myself, right?
Also, just tested out what I have at the moment, input jack went bang
scary stuff
The issue is that if the insulation fails, you get mains voltage on the output terminals, which is pretty dangerous. The usual fix is to run it with an isolation transformer, but that's back to "big and heavy".
ah
i did kinda want to compact it down
cause this transformer is unwieldy
But back to ordering a replacement for the C14 socket that blew
Exactly. There's a bit of a minimum size for 250 watt supplies. One brand I'm fond of is Mean Well, who build some decent quality, moderately priced power supplies.
Not sure if I should just buy premade 36V 5A brick
cause that's what my circuit needs
That's basically what the eBay one you linked is. The tricky part is knowing whether it is properly insulated/isolated.
Anyone know if there's a way to paste an invite link into discord mobile? I am being lazy and don't want to go get my laptop
I don't know offhand, but my first (admittedly possibly impractical) thought is to make it into a QR code and read it in with your phone camera
I don't have a printer heheh and I think that might require a laptop anyways. I'll just be lazy
Laziness is the mother of invention!
I am really good at the first half of that sentence
You just copy and paste, like normal... 😐
So, is it generating a lot of heat when running VMs?
What's the actual issue?
Just drop me a PM when you get around to investigating.
jeez. thats uber scummy
Yea
Clicked on a website on programing and boom ios dialog
(think the domain I clicked on was codeloop or something like that)
And lazy
This
Also "Mobile" is capitalized
"from Apple Store"
The "Install Now" button is fat
Etc.
Just a retread of the old "update Flash" malware
You say malware, but it did say to get an app on the Apple App Store
So there is no way it's malware
Maybe adware
I assume the "Install Now" link doesn't lead to the actual Apple app store.
I dont intend on finding out what's on the other side of the button lol
Yeah.. obviously malicious.
I don't like when a module/pcb doesn't have mounting holes. Makes my life much harder
There are products made to address such situations, but yeah, it's a pain
Yeah I'm just going to 3D print some stuff to deal with it.
Also anyone watch pennyworth? I'm sitting down to watch TV for the first time in at least a month and idk what to watch.
Seems like a reasonably interesting concept, but I could see it being not good
What are they called?
Board Edge Mounts: https://www.adafruit.com/product/1116
Sweetness!!
Just snagged a Pi Zero 2 W. 😁
Oh I forgot that was a link
an invite link from another discord? or from this one to someone else?
I figured it out, I'd forgotten that there was a way to do it in mobile. Yes a link from another discord
yeah same way you do it on PC click at the top yada yada
got my lidar sensor in yesterday
what do ya want to know?
I'm just trying to find a way to mount one on the wall of a plastic (or perhaps thin steel) enclosure
bob marley
i would recommend press in style
will this be under pressure or just to hold oil from fallling out
?
generally try to anyways
It's to keep moisture/rain out
ok then get a speedy sleeve thats a bit smaller than the opening and a seal that will fit the shaft and sleeve
There are simple approaches (like a packing box), friction seals, labyrinth seals, and true hermetic seals.
then from there epoxy or jb weld the sleeve into the threded portion
I need something that can be rained on heavily without leaking into the enclosure
if you want an easy solution that is
I want a good solution, if it's reasonable time and money cost wise
wouldnt say it isnt goood... just not a machined part
A packing box (also known as a stuffing box) is arguably a good solution (used for many decades), is low cost and conceptually simple.
seen an engine block sealed up on the water jacket after it cracked with jb weld
nothing like a good ole fernco lol
If it works for boats it's more than enough for me
gotta get out that calliper and size the shaft
The shaft in question is small, 1/4", I trust the manufacturer to have tight tolerances
nice thing about most seals is there is room for error
Also the shaft isn't long, I have like an inch to work with and I need to attach stuff to it so less than that
Yeah all the stuffing boxes I'm seeing are for much larger shafts
might be able to use a rubber grommet
Yeah I was thinking of that
I'd rather find a solution that's designed for what I'm trying to achieve, if I can
wheni hear of a shaft seal i thing of larger stuff like axel seals
Yeah they do make small shaft seals
It's just finding one that can be mounted in a low profile way to some thin material that's hard
Rotary Shaft Seal OAS-10X20X7-NBR Generic, Inner diam. 10 mm, Outer diam. 20 mm, Width 7 mm, material NBR
I'm finding plenty of large bore options
That's very similar to the ones I've seen.
I could always use a metal chassis and do an interference fit with a hot torch
Lol
yeah those might be your best option... maybe get a retainer ring to slide over the shaft that fits the seal
for my jeep axels they use a retainer ring that the seal rides on.. that retainer is pressed onto the axel shaft
Working for free on the weekend because I'm a fool
working for free is a hobby of mine
I have a pretty tight space to get this all in unfortunately
ahh then yeah either get ahold of a seal manufacturer or someone like granger who specializes in that field
or rubber grommet and grease
Yeah I have trouble getting ahold of anything at grainger that is less than .5" bore
moly graph works good to prevent weardown
If I had my druthers I'd find something that needs really minimal servicing
I won't have reliable access to this once it's built so the less that someone else is responsible for, the better
used to be a company here called otts friction supply that sold seals... i dont think they are in business anymore though
Bummer. I'll keep digging. Thanks
no problem lots of options out there... also dont forget to check in with your local auto parts store
if you have a good tech thats been in the business they will know where ya can go
Yeah that's always a good choice. Quite critical for me is to find CAD drawings tho so I can design for the thing
i used to work for napa. the sales rep they had when i worked there was able to pull up full specs on any seal
all the options arent always online... sometimes ya gotta go by the book
taking a trip into town and asking might be better if ya cant find answers on the website
Yeah
Unfortunately the stores are in MY town but not the town I work in 40 miles away, and I don't have time in the morning. It will have to be next weekend
back when i worked there they had 15 different suppliers for different stuff they could direct ya to
Hydraulic Seal US-3X9X4.50-5-PU94 Generic, Inner diam. 3 mm, Outer diam. 9 mm, Width 4.5 mm, material PU
3mm is just under 1/4"
this should fit for ya
er wait
i read that wrong
itd need to be 6mm
Rotary Shaft Seal OA-6X19X6-NBR Generic, Inner diam. 6 mm, Outer diam. 19 mm, Width 6 mm, material NBR
thatn
You can make your own packing box. Plumbing supply stores sell graphite stem valve packing, wind that around your shaft and compress it and voilà