#general-chat | adafruit | Page 147

dusty citrus Dec 25, 2019, 9:04 PM

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She said the guy she was selling it 'for' was a compulsive buyer and didn't want it almost as soon as he got home. ;)

hardy rock Dec 25, 2019, 9:05 PM

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His loss, your gain... That sounds like a really fun day.

dusty citrus Dec 25, 2019, 9:05 PM

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It was a bed and breakfast - the seller ran one of those; so I doubt it was stolen or otherwise ill-gotten.

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It was awesome, and my always-available Hartford friend took me out to dinner and brought me and the new bike back to Torrington, after 9 pm. ;)

hardy rock Dec 25, 2019, 9:06 PM

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The last unicycle I bought was from the bed of a guy's pickup in a grocery store parking lot at midnight. Totally legit, absolutely sure of that. 😁

dusty citrus Dec 25, 2019, 9:06 PM

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It's got Schwalbe Big Apple tires, and came with a CatEye branded bike computer .. and the add-on factory rear rack (with factory bungee).

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I have literally only seen one unicycle in person in my entire life.

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Of course, most of the bikes I have, I have never seen anywhere else, in person, either.

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I've seen maybe two Dahon folders that weren't mine. ;)

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We get a lot of Schwinn and Specialized here.

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And lots of 1970's vintage bikes that somehow survived all that time, in pretty good shape, ridden by almost-poverty types (we have a gutted industrial base culture going on locally, so a lot of legacy value systems persist).

hardy rock Dec 25, 2019, 9:09 PM

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One of my unicycles has a "Schwalbe Hans Dampf Evo Super Gravity PaceStar" tire on it. No, I take that back, I demounted that one and switched back to the Maxxis. Not much difference between the two really though.

dusty citrus Dec 25, 2019, 9:09 PM

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I want to get 24" hookworms onto something ;)

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559 rims are just too big for my steepest hills. (26" mountain bike standard, 135 mm rear dropout spacing)

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I have two fixed gear bikes (700c, ISO 406 20")

hardy rock Dec 25, 2019, 9:13 PM

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I rode trails with a 26" Hookworm on a unicycle for a while and like it a lot except for sand, mud, and loose gravel. Without knobs, It slid out to the side too easily. But 95% of the time it was great.

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My fixed gear bike is 700c on the back and 650c on the front. It's an imitation time-trial bike using a rusty Raleigh Record frame (originally my little sister's) that I put together as a gag but ended up riding a lot.

dusty citrus Dec 25, 2019, 9:16 PM

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Hehe.

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Yeah Sheldon (Brown) said that essentially, on the road, you may as well ride slicks, as the treads do nothing for you on good pavement.

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I have .. um .. Surly Endomorphs on one bike.

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They're there for the float on soft stuff.

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(they feel amazing on spongy turf like wet grass)

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(so different from 'knifing in')

hardy rock Dec 25, 2019, 9:18 PM

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Did you know Sheldon? I had the good fortune to pal around with him one afternoon at a bike show. (I had a car and he didn't.) He is very much missed.

dusty citrus Dec 25, 2019, 9:18 PM

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I wrote back and forth with him once, and friended George on Facebook for a while (his son).

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I miss him a lot, too.

hardy rock Dec 25, 2019, 9:19 PM

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He had a reputation for being a cranky old bike mechanic, but from what I saw of him it couldn't have been further from the truth.

dusty citrus Dec 25, 2019, 9:19 PM

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I only knew him from online. His wife put a very recent timestamp on the old web site, so looks like she's maintaining it somewhat.

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Really kind of surprised it's not gone away.

hardy rock Dec 25, 2019, 9:20 PM

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I assumed that Harris Cyclery was keeping it going, although I haven't checked lately.

dusty citrus Dec 25, 2019, 9:20 PM

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(you probably read this) he had a fall in the kitchen, and after that the blog posts seemed to indicate steady decline. He did have enough time to modify his riding habits, to cope with the new difficulties.

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Harris doesn't seem the same anymore.

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The QBP catalog is now kind of meh.

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They're just selling cachet items; not much selection compared with what they used to offer.

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(and bike parts went up - a lot) (in price)

hardy rock Dec 25, 2019, 9:22 PM

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Oh, QBP used to be the big source for local bike shops--why no one ever cheated on the minimum advertised retail price on their Surly-branded stuff, because they didn't want to get cut off on everything else.

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But I haven't followed as closely the last couple of years.

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I guess things have changed quite a bit from the sound of it.

dusty citrus Dec 25, 2019, 9:23 PM

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Yeah it's getting harder to replace 'standard' parts - let alone oddball stuff.

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I'm going to try ordering locally from Bloomfield; seems everyone who offers QBP catalog is at similar price point. Harris used to be my go-to (and Peter White, for a few things such as measured spokes).

hardy rock Dec 25, 2019, 9:25 PM

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Btw, it took a few minutes to come up with the model name but I've also got a 24" CST Cyclops on one of my unicycles, a Hookworm from the same company under a different brand name, slightly different tread, half the price. I've enjoyed that one too.

dusty citrus Dec 25, 2019, 9:25 PM

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Wow.

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I have some Maxxis tires from a Nishiki Pueblo (circa 1995).

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They're still good today.

hardy rock Dec 25, 2019, 9:27 PM

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I've had good luck with them. But I haven't gotten many really bad tires lately. The baseline for that business seems pretty high.

dusty citrus Dec 25, 2019, 9:27 PM

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BTW I have a Bikes Direct mountain bike in aluminum. Weighs a ton. Amazingly heavy bicycle (not to my liking; somehow overlooked this factor when purchased).
Still, my only disc brake bike suitable for hill climbing.

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It does get all the compliments (is in Yellow).

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'motobecane' haha.

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(as if!)

hardy rock Dec 25, 2019, 9:28 PM

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Yellow is the new red. 😁

dusty citrus Dec 25, 2019, 9:28 PM

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Someone told me a long time ago that yellow paint was chemically 'iffy' and that's why they stand out if done correctly.

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I've had zero good luck in 5 years of buying 'inner tubes'.

hardy rock Dec 25, 2019, 9:29 PM

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I bought tires from their original Bike Tires Direct website, and I've browsed the frames and bikes and wondered what the catch was.

dusty citrus Dec 25, 2019, 9:29 PM

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They are very fragile.

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I have two Bikes Direct bikes; both are reaonable values.

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I like the chromoly one the best. It probably could use bearing work right from the factory; but my bikes are all now low miles vehicles as I switch off and don't ride enough to justify maintaining the 'herd' haha.

hardy rock Dec 25, 2019, 9:30 PM

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The prices were very good. Usually the ones I was liked mostly had sold out by the time I saw them. I see that with sites that sell inexpensive imported guitars too--they order a batch and when they're gone they're gone.

dusty citrus Dec 25, 2019, 9:31 PM

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I priced out a J-200 based on Greg Lake's video on them.

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That's a lot of dinero.

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https://www.youtube.com/watch?v=XQI3ePeIJiI

hardy rock Dec 25, 2019, 9:32 PM

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Real Gibsons were made in Kalamazoo imho.

dusty citrus Dec 25, 2019, 9:33 PM

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I had a good Hummingbird and (foolishly) sold it before I turned 22. ;)

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I found some good Jorma Kaukonen vids lately.

hardy rock Dec 25, 2019, 9:36 PM

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What J200 means to me...

📎 j200.jpg

dusty citrus Dec 25, 2019, 9:38 PM

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Nice.

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(had another word in mind ;)

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I don't listen to him much but I really like Béla Fleck's stuff (banjo).

hardy rock Dec 25, 2019, 9:40 PM

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I've been impressed watching live videos by what a strong rhythm player Emmylou is, at how she led the band by the way she played.

dusty citrus Dec 25, 2019, 9:42 PM

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My friend the jazz bassist said he learned bass because he wanted to lead the band. He said the piano has to go where the bass player leads, and everyone else has to follow the piano.
He said they weren't above 'setting' the new guy so he couldn't follow, to keep him in his place/teach him a lesson. ;)

hardy rock Dec 25, 2019, 9:43 PM

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A few weeks ago, I listened to the New Grass Revival cover of John Hartford's "Steam Powered Aereoplane," really like the feel of Bela's playing on that. But generally I go more for Ralph Stanley--old Gibson archtop and treble treble treble.

dusty citrus Dec 25, 2019, 9:43 PM

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(this guy sounded like a swiss watch when playing acoustic guitar, which wasn't even his instrument)

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Charlie Stevens.
Charlie was about 80 when he 'passed' (awful euphemism). That summer he came by several times, and was terrified (knew it was near his time).

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So one time he was playing, and I wasn't focused - had my back turned to him.
We all hung out at a defunct coffee shop with no business, that refused to go under.

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I casually mentioned to Charlie that when other live musicians play, in my experience, they keep 'slapping at it' when tired (the sound goes off rhythm, mostly).
But that when he played, he either played it as if he were recording in a studio -- or he put the instrument down (when tired).

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He said in all his years I was the first 'non-musician' to notice and remark on that. He was floored. ;) Haha.

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(because you can hear it - having your back turned helps to notice how he sounds exactly like a good professional recording -- but live.)

hardy rock Dec 25, 2019, 9:48 PM

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Nice tribute to the guy.

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I guess that's something that lifer pro musicians would pay a lot of attention to.

dusty citrus Dec 25, 2019, 9:49 PM

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That's one of only a few good Charlie Stevens stories I have to tell. :)

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Well he did say that basically jazz (for their era) was highly focused on exact musicianship.

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They did not believe in (ever) playing poorly - not once; not for any reason.

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I think the idea was to not form bad muscle memory habits.

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Whereas me, I'll chase after it for half an hour, trying just to get to the place where it sounds good.

hardy rock Dec 25, 2019, 9:53 PM

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Unfortunately I play the way I type, prone to mistakes. I think there are high motor function people and there are others. I was never going to be an acrobat or a skateboard master either. We can all improve with practice but some are naturally much more gifted, as with all talents.

dusty citrus Dec 25, 2019, 9:54 PM

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Yeah, of course. There's that. There's also: just to play. For your own self; for your own reasons. I've always done so.

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I'm not really affected by 'advice' other than some ideas stick (and perhaps, decades later, come into a more full understanding).

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I look at it simply: I could have gotten 'there' sooner (or 'ever') if it'd been a priority.

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I told Charlie the cost was way too high and I'd be wasting his time (he asked me to essentially study under him).

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(I also knew a guy who claimed to be Joe Pass when I was 19 haha)

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Ok for some reason

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My robot doesnt want to work

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Im really confused

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@dusty citrus What's it not doing?

hardy rock Dec 25, 2019, 9:57 PM

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@dusty citrus Gonna get out and run a few miles while it's still nice out. Good chatting.

dusty citrus Dec 25, 2019, 9:59 PM

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So the code that came with the kit was completely trash

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It wouldnt even work

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So i scoured the interent for alternative better code

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And now my robot wants to spin in circles

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@hardy rock niceta! thanks very much for company.

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well, if you specify the supplier of the robot, model number, and any software links (especially on github) that could narrow it a bit.

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I think robots spinning isn't at all unusual.

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I belive the supplier is VKmaker

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I feel like the wiring is wrong that connects the arduino to the motor controller

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That sounds solveable, offhand.

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Maybe mention the type of motor control chip that is used.

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(H-Bridge or whatever)

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Its uses the L298N

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http://www.cs.columbia.edu/~sedwards/presentations/robot-car-instructions.pdf

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This is the pdf i found to build the robot

dusty citrus Dec 26, 2019, 2:18 AM

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📎 20191225_211728.jpg

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This arduino wont detect

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It came with the kit

late fulcrum Dec 26, 2019, 2:29 AM

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When you say "won't detect", what do you mean? Perhaps you mean that when you plug in the USB connection, the host computer doesn't recognize it? If so, you may have to install the right USB-serial driver (I'm guessing CH340, but there are a few possibilities).

round yacht Dec 26, 2019, 2:57 AM

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Trying to encrypt my second harddrive, and it keeps failing.

debian$ sudo cryptsetup -v -y luksFormat /dev/sda1

WARNING!
========
This will overwrite data on /dev/sda1 irrevocably.

Are you sure? (Type uppercase yes): yes
Operation aborted.

Command failed with code -1 (wrong or missing parameters).

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Does anyone know what's wrong here?

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Structure looks like this:

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.7T 0 disk
└─sda1 8:1 0 3.7T 0 part
nvme0n1 259:0 0 232.9G 0 disk
├─nvme0n1p1 259:1 0 512M 0 part /boot/efi
├─nvme0n1p2 259:2 0 216.5G 0 part /
└─nvme0n1p3 259:3 0 16G 0 part [SWAP]

ocean sigil Dec 26, 2019, 3:00 AM

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Try entering YES

round yacht Dec 26, 2019, 3:00 AM

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...

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lol

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that worked

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Thank you!

ocean sigil Dec 26, 2019, 3:02 AM

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You’re welcome!

dusty citrus Dec 26, 2019, 3:27 AM

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@late fulcrum the arduino IDE does not detect it or any of the com ports, but when it gets plugged in my PC, it recognizes it

late fulcrum Dec 26, 2019, 3:33 AM

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Recognizes it how? As a USB device, or a serial port?

dusty citrus Dec 26, 2019, 3:42 AM

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USB device

grave crest Dec 27, 2019, 5:35 AM

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Anyone have a good USB-C hub they'd recommend -- not a converter hub that has variety of ports, but with just a multitude of USBC ports on the other end of it.

Like a traditional USB-A hub, but for just for USB-C.

dusty citrus Dec 27, 2019, 2:46 PM

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Most of the way finished factoring the Forth source (written in C.H. Ting's eForth) to drive GPIO on STM32F405 Express ;)

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https://github.com/wa1tnr/eforth-stm32f4x-a/blob/assy-exp-ad-/forth.d/working_Blinky-i.fs

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@polar wraith @ocean sigil @cursive pike might like this.

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https://github.com/wa1tnr/eforth-stm32f4x-a/tree/master/0-Distribution.d/eForth

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The .bin-p file can be dfu-util to the target.
Serial on SDA SCL (labeled) pair, acting as USART 115200 bps.

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@velvet nexus I think also expressed an interest in Forth (my memory's weak).

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I've got LEDs on PORTC_1 thru 4, I think. PORTC_1 is D13 LED iirc.

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The code should be generalized to PORTC (any pin) as I didn't do anything explicit to get anything but D13 going.

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Should be straightforward to port this code to another PORT on this micro.

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(and the model is explicit enough to translate over to C Programming, I think)

umbral phoenix Dec 27, 2019, 4:19 PM

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I've always been a little baffled with computer displays. Based on what sells, most people seem to use 24"-27" displays, either 1080 or maybe 4k. But 4k on a 27" at a typical viewing distance results in very tiny text if it's driven at full res. e.g., I tend to sit a little far from my display, it's 27" and set at 2880x1620. If I want a single monitor but more pixels (true 4k, or more), it seems I'd need something in the 40-something inch range to get the same apparent size of text and UI elements. Is there something wrong with this thinking, and would this look pixelated because there's no pixel doubling, interpolation, etc.?

dusty citrus Dec 27, 2019, 4:31 PM

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https://www.youtube.com/watch?v=lRXUAD7RiG4

YouTube

-Inorai-イノライ

[東方ヴォーカルPV][C95]きらりメモリーズ♪[森羅...

[C95]きらりメモリーズ♪[森羅万象×イノライ]

最終話「これからも！ず～っとトモダチ！」

C95イノライ新譜「SAVE NO SENSE」より、
アニメエンディング風をコンセプトにした、
森羅万象×イノライコラボ楽...

▶ Play video

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it's so cute christmas song

late fulcrum Dec 27, 2019, 4:53 PM

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@umbral phoenix You can always use a larger font size when you want more readable text on a smaller-pixel display. This can be implemented in a variety of ways, scaling (with or without aliasing), multiple master typefaces, bitmap fonts available in various resolutions, etc.

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I have a font I built out of a ROM dump of an old high-end computer terminal that's only useful on very high resolution displays.

umbral phoenix Dec 27, 2019, 5:07 PM

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@late fulcrum Thanks, yes, fonts are one thing... and many apps will scale up as needed. But it's not ideal when the basic UI elements (icons, etc) are too small. What I want it a lot of pixels of real estate, but with a similar visual look and size of UI to what I have. I think a huge screen would do it, but I don't know if it would look 'pixelated' with a 1:1 visual pixel per display element pixel. Not sure how much goes on behind the scenes when a 5k display, for example, is ratcheted down to more like 3k, as I'm currently doing, and everything looks crisp..

dusty citrus Dec 27, 2019, 5:09 PM

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Okay, what in the world is induction

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How does a spinning piece of copper make a magnetic field?

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And how do electrons travel through that? What the heck?

late fulcrum Dec 27, 2019, 5:11 PM

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Hmm, I haven't had a lot of trouble with UI element size on high-resolution displays, other than with old UI tools that didn't scale things appropriately.

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Induction means different things in different fields. In logic, it refers to the notion that because something happened a certain way multiple times, it's likely to again. In electronics, it refers to how a current induces a magnetic field, and how magnetic field lines crossing a conductor induces a current in the conductor. Both of these effects tend to happen (at once) in a coil of wire known as an "inductor".

umbral phoenix Dec 27, 2019, 5:13 PM

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More the point is that 4k in a 27" package loses useful pixels. There's just no way to see and use all those pixels if the display is driven at full pixel dimensions.

late fulcrum Dec 27, 2019, 5:13 PM

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A spinning piece of copper doesn't make a magnetic field, but a piece of copper spinning in a magnetic field does induce currents within itself, which in turn produce their own magnetic and electric effects.

umbral phoenix Dec 27, 2019, 5:14 PM

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@dusty citrus https://en.wikipedia.org/wiki/Electromagnetic_induction I'd suggest finding a free physics electromagnetism class online or as a video podcast

Electromagnetic induction

Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.
Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically...

late fulcrum Dec 27, 2019, 5:14 PM

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I agree that a 27" display with 4k resolution produces pixels of tiny size: however it's still much lower resolution than even a cheap printer. However the use cases for screens and printed pages differ.

umbral phoenix Dec 27, 2019, 5:16 PM

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Very true, pixels per inch of the vast majority of displays is far lower than typical print. There are also different perceptions at work: additive vs subtractive color, screening (if present in a printed product), anti-aliasing, etc

dusty citrus Dec 27, 2019, 5:34 PM

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I use 166 dpi for the Xorg server in Linux, but I don't think it's respected as much as it used to be.
I've had to resort to .rc files for GTK to help out in this strategy.

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/usr/lib/xorg/Xorg :0 vt7 -dpi 166 -nolisten tcp -auth /var/lib/foo*

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The -dpi switch alone used to be a lot more effective in dealing with this.

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Modern day, not so much.

cursive pike Dec 27, 2019, 7:57 PM

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@dusty citrus I've started toying around with porting NewtonScript to M4 boards. There's the same resource constraints as the Newton had.

hardy rock Dec 27, 2019, 8:02 PM

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@dusty citrus It's all explained in these two slim (ok, close to 600 pages each) volumes 😄 : https://archive.org/details/ATreatiseOnElectricityMagnetism-Volume1
https://archive.org/details/ATreatiseOnElectricityMagnetism-Volume2

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James Clerk Maxwell figured it out around 1860, and if all of the geniuses who came and went before him didn't get it, it's got to be pretty deep stuff. I've known more than a couple of people who claimed to understand it but really could just point to equations on a blackboard.

late fulcrum Dec 27, 2019, 8:22 PM

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Fortunately, these days, we have goodies like Fadenstrahlröhre we can use to actually see the effect of magnetic fields on electrons, as well as the simple experiments Maxwell did like putting a compass next to a wire and passing a current through it.

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My attempt to build an apparatus to demonstrate the Lorentz force has so far been unsuccessful, but I plan to keep trying.

dusty citrus Dec 27, 2019, 10:39 PM

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@cursive pike A friend of mine ran a used computer store and let me take 'the' Newton (he had exactly one of them in the display case) for an indefinite loan.
I carried it around with me on the bicycle for about six weeks, then returned it to him.

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(My brother and I had Palm III devices a few years later)

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(induction/magnetism) I know I saw a YouTube vid recently about something to do with this. I think it was a really simple motor you can build. Really simple.

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Ooh the bot knows that one. ;)

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goes and sits in the corner

cursive pike Dec 28, 2019, 12:13 AM

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@dusty citrus I still have my MP100

dusty citrus Dec 28, 2019, 12:23 AM

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I think there was a Newton thing in another form-factor, but I may be conflating a different device (Probably, since this device didn't have the screen-driven elements iirc).

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Can't remember what it was called.

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eMate 300 isn't quite it, but close.
https://512pixels.net/2015/08/apple-newton-guide/

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(possibly what I was thinking of .. it's been too long!)

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Alphasmart Neo I think looks like what I'm thinking of.

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Okay those were PalmOS devices.

cursive pike Dec 28, 2019, 1:10 AM

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@dusty citrus There was the emate. clamshell, keyboard. The design was largely used in the original iBook design.

dusty citrus Dec 28, 2019, 1:11 AM

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I 'accidentally' went to the Apple store in Northampton (Mass) one evening and saw those clamshell notebooks (circa the early colored iMac G3's iirc).

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I was astonished they weren't particularly rectilinear. ;)

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Years later, I went to an Apple store at Westfarms Mall (Farmington CT) and I had to get out of there. It felt like they were working my machinery, just by the way the place was setup ;)

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(that, apart from malls in general doing that!)

polar wraith Dec 28, 2019, 1:16 AM

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Give in. MacOS X == Mach ~= UNIX 4.3BSD with SysV extensions. I have a 2019 MacBook Pro and spend the vast majority of my time in the terminal shell. And it's pretty.

dusty citrus Dec 28, 2019, 1:19 AM

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I aspire to be as nerdy as madbodger

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Must....have.....ridiculous amount of trivia

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Must....be....a god

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Yeah I definitely use the shell most of the time; for me Xorg is pretty much like the Linux Virtual Console. I have a dozen xterms open at any given time. ;)

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I guess I could start reading like....everything

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That insanely charismatic library of yours, madbodger. This is my goal!

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Just use elon musks brain impant and you can retain information quickly

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Like a god

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Madbodger is smarter than even that, though

polar wraith Dec 28, 2019, 1:26 AM

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@dusty citrus I have 42 (giggle) Raspberry Pis powered up in my apartment right now. I have another, oh, 30 to 40 powered off at the moment. All controlled by ansible to keep them all patched and up to date. Mac is used for KiCad, editing docs, iCloud, etc, and VNC. System76 stupidly high-end laptop for compiling CircuitPython, etc.

dusty citrus Dec 28, 2019, 1:27 AM

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Who remembers the Greys era?

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Back when people’s questions got answered faster than it took to reread them

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That robot of a man probably had an 800 wpm reading rate and 180 wpm type rate or so

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If a Pi runs in a forest .. and nobody is there to appreciate that it's on and doing something .. is it doing something? /koan

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No

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Well, actually...I guess so

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I even put my main PC to sleep at night. Figured out how to do it in a script.

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When you host a server on a website, you don’t care to appreciate the hoster

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You just care about your server

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¯_(ツ)_/¯

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 $  /usr/sbin/rtcwake -m mem -s  65399 > /dev/null 2>&1 &

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But the machine is definitely doing something

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(399 because I like 'microwave' numbers .. where you don't have to change buttons to increase the magnitude)

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2:11 3:22 4:44 and the like, for cooking times. ;)

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For some odd reason mine accepts 99 for seconds as well. /neat

late fulcrum Dec 28, 2019, 4:42 AM

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I remember Greys.

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He once asked me "do I look like I know what that means?" I don't know, your user pic is a big grey X.

dusty citrus Dec 28, 2019, 4:55 PM

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found this at school

📎 IMG_3830.JPG

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i remember Greys

velvet nexus Dec 28, 2019, 8:49 PM

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~whoa~ i just realized the adafruit itsybitsy and the teensy are the exact same form factor

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is this amazing Y/N

prisma sigil Dec 28, 2019, 8:50 PM

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y

velvet nexus Dec 28, 2019, 8:51 PM

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the teensys are just about the greatest thing ever and all, but the one thing they are missing is some debug pads, e.g. 2-pin SWD like the itsybitsy has

prisma sigil Dec 28, 2019, 8:52 PM

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also handy for designing mounts as well

velvet nexus Dec 28, 2019, 8:53 PM

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having a CPU thats completely different from most microcontrollers on the market, it makes it really difficult to debug teensy-specific issues. with SAMD-based boards you have a dozen different options of SAMD boards with full-blown JTAG ports you can swap in to debug

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(i just received my replacement teensy 4.0 in the mail after i burnt out my other one accidentally powering it for a good 60 seconds at +20V)

prisma sigil Dec 28, 2019, 8:55 PM

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ah rip the board

velvet nexus Dec 28, 2019, 8:55 PM

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RIP

prisma sigil Dec 28, 2019, 8:55 PM

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feels just as bad as this i assume

📎 image0_2.jpg

velvet nexus Dec 28, 2019, 8:55 PM

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that actually looks fixable

spiral sigil Dec 28, 2019, 8:55 PM

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Thats not such bad

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thats work for 5 minutes

prisma sigil Dec 28, 2019, 8:56 PM

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fixable, but terrifying

velvet nexus Dec 28, 2019, 8:56 PM

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more terrifying than coughing up the cash to replace it?

prisma sigil Dec 28, 2019, 8:57 PM

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oh no having to get the cash to replace it is the worst

spiral sigil Dec 28, 2019, 8:58 PM

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Whatever

velvet nexus Dec 28, 2019, 8:58 PM

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what is it?

prisma sigil Dec 28, 2019, 8:58 PM

#

im glad that the newer cpus dont have pins, the sockets do instead

#

I think thats probably a ryzen 5

spiral sigil Dec 28, 2019, 8:59 PM

#

Do not you know if exists some universal driver for LCD screen? I have 860x480 one from smartphone, it has 20 pins but I cannot find any information...

prisma sigil Dec 28, 2019, 9:00 PM

#

no clue

velvet nexus Dec 28, 2019, 9:00 PM

#

that reminds me of when i got the motherboard for my AMD threadripper. those sockets dont have rigid vertical pins like that. they are soft pins that lay over like a wave. i accidentally caught the side of my threadripper on a section of them and flattened out those soft pins. had to replace the motherboard

ocean sigil Dec 28, 2019, 9:00 PM

#

it could be worse 😉

📎 unknown.png

velvet nexus Dec 28, 2019, 9:00 PM

#

was afraid of putting the CPU on the socket, powering it up and frying the CPU, which was faaaar more expensive than the motherboard

prisma sigil Dec 28, 2019, 9:01 PM

#

how did they end up tipping the sat?

spiral sigil Dec 28, 2019, 9:01 PM

#

yeah curving LGA socket is more terrifying

ocean sigil Dec 28, 2019, 9:02 PM

#

someone took the bolts out -- but did not tell anyone ...

velvet nexus Dec 28, 2019, 9:02 PM

#

@spiral sigil doubtful. thats gonna be a very specific serial pinout, no way you'll find a universal driver, and the docs will be proprietary

spiral sigil Dec 28, 2019, 9:02 PM

#

I know that pins 19 and 18 are backlight power...

velvet nexus Dec 28, 2019, 9:03 PM

#

ah, its called an LGA socket, thanks!

#

had no idea if that was even fixable

spiral sigil Dec 28, 2019, 9:03 PM

#

it is fixable, but you sadly have small chance to fix it

velvet nexus Dec 28, 2019, 9:04 PM

#

the pins were on the inside too, not out on the edge

#

i certainly didnt (dont) have the confidence to risk my threadripper's life on fixing it myself

#

(best PC ever btw)

spiral sigil Dec 28, 2019, 9:06 PM

#

Yeah, my life is cheaper than Threadripper

velvet nexus Dec 28, 2019, 9:06 PM

#

it put me in the hole a few bucks for sure

#

many few

#

but as much time as i spend on the computer... i wanted a good PC that would last

spiral sigil Dec 28, 2019, 9:07 PM

#

Me too

#

So i bought FX-6350

#

nah

#

in 2019

velvet nexus Dec 28, 2019, 9:08 PM

#

im not familiar with PC tech at all, so i dont have a clue what that is

spiral sigil Dec 28, 2019, 9:09 PM

#

AM3+ CPU with power usage 125 W and the cheapest Ryzen is better than that

velvet nexus Dec 28, 2019, 9:10 PM

#

ah, hah

spiral sigil Dec 28, 2019, 9:13 PM

#

And do not you know some website with unusual datasheets?

polar wraith Dec 28, 2019, 10:38 PM

#

Star Wars marathon. In Attack of the clones, R2D2 is supposed to be guarding Padme, but the worms get in while he's verrrry slowly looking around the room. Surely we could do better with some lidar and thermal imaging....

#

I can see it now. "New New New - introducing the Adafruit Astromech Droids!"

dusty citrus Dec 29, 2019, 1:23 AM

#

visiting National Harbor again, seeing how well my new iPod takes photos

📎 IMG_0018.JPG

hushed hill Dec 29, 2019, 6:30 AM

#

Was attempting to read a rom that I think came from a commodore plus/4 but the 555 seams to not want to work right.

#

Using 4 74ls191 to do addresses for the rom, and using the 555 for a clock signal. Working on a schematic to show what I mean.

crystal orbit Dec 29, 2019, 8:00 AM

#

Actually building stuff is a lot harder than just reading about it...

#

Crossing my fingers and hoping my soldering skills are adequate (don't want to fry my stuff)

hardy rock Dec 29, 2019, 8:15 AM

#

@crystal orbit You raise a very important point there! 😁

#

Good luck with it, and try not to get discouraged if things don't quite go the way you expected them to. That's gonna happen.

crystal orbit Dec 29, 2019, 9:04 AM

#

I just finished soldering the lcd and I am about to test it with a simple 'hello world' program

#

I had to tear apart a ribbon cable for those floppy disk readers and it almost brought me to tears (jkjk but it was sad)

#

📎 image0.jpg

#

It worked!

#

(This is for a convoluted smart watch design btw)

late fulcrum Dec 29, 2019, 2:57 PM

#

@hushed hill I'm eyeing a similar project but thinking of using an Arduino Mega to read out the ROM

dusty citrus Dec 29, 2019, 3:35 PM

#

@ocean sigil I once deleted the root directory of the shop's Wang PC (circa 1986 or so?) since I didn't know the full effects of the syntax I used (some *.* variant, I think).
wrt >> no matter how much you screw up

hushed hill Dec 29, 2019, 5:32 PM

#

Yeah an arduino would be a lot easier to use, but I left my mega at the other place. So I think I'll just use some shift registers and just use a nano.

unreal wasp Dec 29, 2019, 7:12 PM

#

Since this is the offtopic channel, here's my Discord server. It's just a fun place to hang out and if you want a certain text or voice channel added, ask @unreal wasp , me, and I will do so. https://discord.gg/Eunznt

polar wraith Dec 29, 2019, 7:31 PM

#

@dusty citrus A friend was on the experimental Dual-VAX right after we built it and thought he was in his home directory when he typed "rm -rf usr". Nope, he was in /. It took him about seven hours to rebuild the system. Hahstag DontWorkAsRootUnlessYouAbsolutelyHaveTo.

dusty citrus Dec 30, 2019, 2:48 AM

#

 $ mkdir tmp.d
 $ cd tmp.d
 $ mv ../[a-z]* .
 $ mkdir DELETE
 $ cd DELETE
 $ mv ../* .
 $ cd ..
 $ ls ; pwd
 $ ls DELETE/

Then I would remove DELETE/ using switches passed to rm there. ;)

#

I try to use something .. anything .. besides a universal global, so that there's some chance if I do something very wrong, it's not quite as global in scope.

#

I might also du before the rm to get another sense of what I'm about to remove. Or even a find . | wc -l to get a count of how many things are in DELETE or lower directory level.

#

But I think the main thing is to be in a subdirectory, referencing '..' (the directory above the current one) as that tends to limit the scope of large operations against the filesystem.

#

Anything destructive does not reference '..' so that's the protection.

ocean sigil Dec 30, 2019, 3:04 AM

#

Or just keep good backups 😉

dusty citrus Dec 30, 2019, 3:04 AM

#

@ocean sigil I call that github ;)

ocean sigil Dec 30, 2019, 3:05 AM

#

I was trained never to assume the computer would reboot!

dusty citrus Dec 30, 2019, 3:05 AM

#

Now that's a pretty interesting point of view! Wow.

ocean sigil Dec 30, 2019, 3:06 AM

#

Unless I wrote the boot loader, that is 😉

dusty citrus Dec 30, 2019, 3:07 AM

#

I seem to remember remotingly crashing a system I didn't own (entirely without malice, and unintended) now and then.

#

A friend's BBS seems to crash, occasionally, immediately after I do what I know to be a mistake, there.

#

(but he's got it rigged to recover without intervention, so that's just a two minute downtime, to me on the far end of the link)

ocean sigil Dec 30, 2019, 3:09 AM

#

Do BBS’s still exist?

dusty citrus Dec 30, 2019, 3:10 AM

#

Yeah there's a few still around. I only visit the one (and not often; just to keep up the skills needed to login and post there).

#

What was done was they added telnet abilities to the traditional boards.

ocean sigil Dec 30, 2019, 3:11 AM

#

Brings back fond memories

dusty citrus Dec 30, 2019, 3:11 AM

#

Some are designed with the Internet in mind. I think we ran 'beehive' on the BBS for a while.

#

Pretty sure BBBS is still around in some form.

ocean sigil Dec 30, 2019, 3:12 AM

#

I still associate them with the squeal of a 300 baud modem...

dusty citrus Dec 30, 2019, 3:13 AM

#

You can telnet to fix.no on port 24

#

Haven't been there in a while but generally you could at least logon.

ocean sigil Dec 30, 2019, 3:14 AM

#

Just would not be right at 100Mbps

dusty citrus Dec 30, 2019, 3:14 AM

#

Oh there's gotta be an artificial way to slow it down to make it seem legit. ;)

#

I think on that BBS they even use an 'mg' clone to simulate Emacs.

#

(as an editor option)

finite monolith Dec 30, 2019, 3:47 AM

#

this might work: https://www.charlesproxy.com/documentation/proxying/throttling/

Bandwidth Throttle / Bandwidth Simulator • Charles Web Debugging...

Charles Web Debugging Proxy - Official Site

drowsy zephyr Dec 30, 2019, 4:57 AM

#

guys, question

#

how necessary is RAM in modern gaming?

echo agate Dec 30, 2019, 5:14 AM

#

You definitely gotta have some

#

8GB is the least you should have these days I'd say

drowsy zephyr Dec 30, 2019, 5:20 AM

#

but i guess it's the least of my problems when i only have 2 gigs of VRAM -_-

#

i've also asked in other servers

#

and it doesn't seem good

#

im upgrading from 8 gigs to 16 gigs

#

https://www.acer.com/ac/en/ID/content/support-product/5991;-;Aspire E5-473G

#

this is my laptop im upgrading

#

and i guess upgrading my ram won't improve my gaming experience

echo agate Dec 30, 2019, 5:22 AM

#

Your integrated graphics is probably the limiting factor there

drowsy zephyr Dec 30, 2019, 5:24 AM

#

and i can't do anything about it, can i?

#

this computer is fitted only with an NVIDIA Geforce 940M

echo agate Dec 30, 2019, 5:25 AM

#

Doesn't seem like it can be helped, unfortunately 😦

drowsy zephyr Dec 30, 2019, 5:25 AM

#

darn

#

what can i do with 16 gb of ram then?

echo agate Dec 30, 2019, 5:28 AM

#

More browser tabs!

drowsy zephyr Dec 30, 2019, 5:28 AM

#

heh

#

anything else?

echo agate Dec 30, 2019, 5:29 AM

#

Anything RAM hungry will run better, stuff like CAD, audio and video editing. Might help some with gaming if the GPU shares system memory

dusty citrus Dec 30, 2019, 5:30 AM

#

My Pentium CPU is the slowest thing to exist in my desktop

#

I need ryzen

hardy rock Dec 30, 2019, 5:41 AM

#

16 GB might get you in the game for TensorFlow model training.

dusty citrus Dec 30, 2019, 5:46 AM

#

Im still looking forward to buying the 1802 CPU kit

#

And create my own elf computer

#

I thought of crazy retro computer designs like the commodore 64 laptop

idle iron Dec 30, 2019, 8:22 AM

#

@drowsy zephyr 1 ram stick per ram channel is best... ECC is pointless most the time dont pay extra for it

drowsy zephyr Dec 30, 2019, 11:26 AM

#

wha?

#

what's ECC?

late fulcrum Dec 30, 2019, 3:42 PM

#

Error correction: important when a stray bad bit could ruin (say) your tax return. Doesn't matter much if a pixel is wrong for a single frame of a game.

drowsy zephyr Dec 30, 2019, 4:44 PM

#

uhm

#

okay

#

well, im upgrading a laptop of mine from 8 gig to 16 gig, but im kinda sad knowing that 16 gig won't do anything if i only have like 2 gigs of VRAM

late fulcrum Dec 30, 2019, 5:10 PM

#

Depends entirely on the game and how it uses system resources

drowsy zephyr Dec 30, 2019, 5:24 PM

#

well

#

what about modern games?

#

like GTA V or RS6?

late fulcrum Dec 30, 2019, 5:35 PM

#

I think GTA V runs just fine on a Playstation 4, so I doubt it's resource constrained.

unreal wasp Dec 30, 2019, 7:43 PM

#

Here's the new server link if anyone wants in.

#

https://discord.gg/xW9hWK

late fulcrum Dec 30, 2019, 8:43 PM

#

What kind of server? What do people discuss there?

dusty citrus Dec 30, 2019, 9:13 PM

#

They're saying the light from Betelgeuse has varied beyond what was expected, recently.

#

Kind of a supernova thing for it, in the works.

#

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

#

Not enough information to project a timetable for that.

polar wraith Dec 30, 2019, 9:20 PM

#

@dusty citrus Scott Manley has an opinion. https://youtu.be/y1vZ6JT1s8Q

YouTube

Scott Manley

Betelgeuse Gets Darker, But It's Probably Not Going To Explode (Yet)

Betelgeuse is the reddest star visible in the night sky, a red supergiant a few hundred light years from Earth it's likely to become a supernova in the next hundred thousand years or so. Recently it faded and became half as luminous as usual, and some more clickbaity publicat...

▶ Play video

dusty citrus Dec 30, 2019, 9:20 PM

#

If it did do something fairly interesting, it'd take 640 years for the news to reach us.

#

However, that may've already been the case. ;)

#

(Might have gone supernova say, 340 years ago).

polar wraith Dec 30, 2019, 9:20 PM

#

Time is relative.

dusty citrus Dec 30, 2019, 9:22 PM

#

@polar wraith Right. But with a star as close as it is, to us, we can say meaningful things about when (in our present) things will happen to us, that originated there at that star.

polar wraith Dec 30, 2019, 9:23 PM

#

Fair. Spacecraft operations on the Deep Space Network manage light-minutes of communications lag....

dusty citrus Dec 30, 2019, 9:24 PM

#

Penrose presented the Andromeda Paradox with no discernable tongue-in-cheek. I still don't know what he was saying.

#

https://en.wikipedia.org/wiki/Rietdijk–Putnam_argument

#

I think the commonly-held view is that one must pay attention to the 'paradox' word in its title.

polar wraith Dec 30, 2019, 9:41 PM

#

Penrose is brilliant. Been a fan for years. Taking quite a shine to Juan Maldacena and Sean Carroll lately, though. My friend Murray passed away last year. I miss him.

#

@dusty citrus Yeah, see, that's the trick, isn't it? (Han Solo) Everyone assumes time is non-local, but there isn't actually much evidence for that. In fact, in the latest evolutions of MWT, there's nothing in QM that says which direction time must flow, so ... why does it? The assumption is that the near-Minkowski space is a conformal field, but, again, without evidence.

dusty citrus Dec 30, 2019, 10:05 PM

#

What makes the playstation 4 and xbox one so difficult to hack into?

#

They are basically PCs

#

What changed about them?

#

true, but im pretty sure its because they dont have so many ports/connections going out, so they could focus more on securing those open things

#

Thing is

#

idk for a fact

#

but thats what i think it is

#

I really like to get a playstation 4 and turn it into a simple PC which can dual boot playstation OS and windows 10

polar wraith Dec 30, 2019, 10:09 PM

#

When I worked at Microsoft I'd often go to Studio B to meet with various teams. That's XBox HQ. They take security extremely seriously, credit to them.

#

So yeah, it's technically a Windows kernel, but it is very, very hardened and customized.

dusty citrus Dec 30, 2019, 11:38 PM

#

can i share my discord server here?

#

since the only other user in my server is my friend irl

#

Oof

#

I wanted my xbox to run full windows 10 and overclock the CPU

#

discord.gg/NtA62Q2 tech stuff

dusty citrus Dec 31, 2019, 1:29 AM

#

Does our stomach have celulase for plants we eat?

#

why bring biology into a tech server lol. i run on circuits and processors and other stuff lol

#

Welcome to the offtopic channel, bro

#

ik

#

im making a joke that i am a human with robotic things

dusty citrus Dec 31, 2019, 2:23 AM

#

Yeah, sorry, I caught that after sending the message, but was too busy to point it out

late fulcrum Dec 31, 2019, 2:57 AM

#

Nope, humans can't digest cellulose, it just acts as "fiber".

abstract violet Dec 31, 2019, 4:56 AM

#

Has anyone replaced their joycon joystick? What are the replacements like in terms of longevity, do you have to replace it as often as the original part?

dusty citrus Dec 31, 2019, 2:41 PM

#

@late fulcrum When 2021 begins

#

Because the year “0” was never a thing

#

This decade is 2011 - 2020

#

The last decade was 2001-2010

#

Meaning that this decade ends the instant 2020 ends, which is the beginning of 2021

late fulcrum Dec 31, 2019, 2:51 PM

#

So, you were inaccurate, saying it happens "in" 2020.

dusty citrus Dec 31, 2019, 2:51 PM

#

Sorry

#

I said in 2021, by the way

#

But by “in”, I mean, the instant it begins

late fulcrum Dec 31, 2019, 2:52 PM

#

Easily avoided, we can just use another calendar

dusty citrus Dec 31, 2019, 2:53 PM

#

Hmm

#

So, you’re telling me there’s a calendar that considers 2010-2019 a decade

#

But then that wouldn’t make sense

#

Actually, hold on...that would be from the instant 2010 begins to the instant 2019 ends, so when 2020 begins. That would be 10 years, indeed

#

But we seem to traditionally consider 2011-2020 to be the decade. So why change the tradition this decade and not in any other decades?

short bone Dec 31, 2019, 2:57 PM

#

Numerically a decade is 2010-2019, because the tens digit stays the same

dusty citrus Dec 31, 2019, 2:58 PM

#

“Numerically” a decade is 10 years. 10 years exactly. It really depends where you start counting from

#

That’s where mad’s calendar argument seems to come in

short bone Dec 31, 2019, 3:01 PM

#

If you take a resistor decade as an example, there is digit 0-9 for each power of 10 resistance value.

dusty citrus Dec 31, 2019, 3:14 PM

#

Years are different

#

One decade is
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10

#

The instant that the year 9-10 ends and the year 10-11 begins, the decade of 1-10 is over

#

Because a year is labeled by its last range numeral. So the very first year ever noted was the year 0-1, but we call it “year 1”, we don’t call it “year 0”

#

Unless, of course...you do

#

Once again, angry-badger’s argument is fine

#

This means that, according to our traditional system, the decade we’re currently at is

2010-2011
2011-2012
...
2019-2020

This decade will traditionally be considered “over” the instant that the year 2019-2020 ends, which will be the instant that the year 2020-2021 begins. But the year 2020-2021 is labelled just “2021”, as I noted before

#

guys, if you stand on your left foot at 11:59 PM, then you will be stepping off on the right foot for the new year

#

Thanks for the comedic relief, and yes, yes you would, lmao

#

lol

short bone Dec 31, 2019, 3:26 PM

#

OK, with this confusing labeling, the new decade starts at the start of 2021

late fulcrum Dec 31, 2019, 3:37 PM

#

This is an example of something programmers run into all the time. Actually two of them: the difference (as you pointed out) between 0-based and 1-based indexing, and "fencepost errors".

#

However, it's all artificial and arbitrary, and "correct" is only what someone says it is. By "different calendar", I was thinking of sidereal calendars, Chinese calendars, Hebrew calendars, etc, not the Julian/Gregorian variety in which it's considered "2019".

#

I'd throw in the Mayan calendar, but it ran out in (Gregorian) 2012

#

I have similar nitpicks about time. I'll see references to 12:00PM, when there ain't no such animal: it's either 12 noon or 12 midnight, at that instant between AM and PM.

high galleon Dec 31, 2019, 3:54 PM

#

(damn bot) everyday a new decade starts. We collectively decided that the ones starting jan 1st the years ending by 1 are specials... go figure...

late fulcrum Dec 31, 2019, 3:54 PM

#

Truth!

dusty citrus Dec 31, 2019, 4:13 PM

#

Well, this is about the decade, not a decade

#

That’s right, a new decade starts every day: every instant, even

late fulcrum Dec 31, 2019, 5:07 PM

#

That it does.

polar wraith Dec 31, 2019, 5:26 PM

#

@dusty citrus Check https://youtu.be/Pm9CQn07OjU for comments on the psychological transition to a new decade.

YouTube

Veritasium

Why Most Resolutions Fail & How To Succeed

Common pitfalls of New Year's resolutions and how I plan to avoid them. Thanks Audible! Start listening with a 30-day trial and your first audiobook plus two Audible Originals free when you go to https://audible.com/veritasium or text veritasium to 500500.

Thanks to Simone...

▶ Play video

dusty citrus Dec 31, 2019, 5:35 PM

#

Hmmmm

#

I will

fickle slate Dec 31, 2019, 8:11 PM

#

is midnight hour 0 or hour 24?

#

Like i know different 24-hour devices display midnight differently

dusty citrus Dec 31, 2019, 9:44 PM

#

i'd think the more universal hour would be 0

tame saddle Jan 1, 2020, 12:30 AM

#

@unreal wasp While we allow (relevant) server advertising, please don't continually post/spam links, and limit posting links to here in #general-chat. 4 posts in a few days is excessive. Thanks!

polar wraith Jan 1, 2020, 2:00 AM

#

Hmmm. Lights are flickering (PNW, much rain = soggy, soft ground, and wind, which makes trees fall down). Flashlight is dead. Grabbed a LiPo and a CircuitPlayground Express and loaded on a quick bit of code to turn on all the Neopixels. Instant emergency light. 🙂

dusty citrus Jan 1, 2020, 4:13 AM

#

CamelForth in C:
https://github.com/wa1tnr/CamelForth-SAMD51-SAMD21
Now supporting ItsyBitsyM4. Previously already supported NeoTrellis M4. Others. ;)

#

(Atmel Start based; has Makefile under ./gcc subdirectory)

dusty citrus Jan 1, 2020, 5:08 AM

#

happy new year from new york!

polar wraith Jan 1, 2020, 8:08 AM

#

Ok, I don't know if @stuck moth or anyone is around, but I'll represent AdafruitNW and say Happy New Year from Seattle!

stuck moth Jan 1, 2020, 9:02 AM

#

You too @polar wraith and @dusty citrus !

dusty citrus Jan 1, 2020, 4:49 PM

#

Wishing has zero predictive power, and zero influence power.
What would a 'I wish you a happy new year' look like in a rational statement of .. goodwill? ;)

#

Could say "I will make it my task to see to it that your new year is happier, than otherwise. ;)"

#

call Hallmark

polar wraith Jan 1, 2020, 4:57 PM

#

@dusty citrus I learned pretty early on not to make promises that rely on things outside my span of control. 🙂

dusty citrus Jan 1, 2020, 5:02 PM

#

there's no duct tape emoticon

rugged flare Jan 1, 2020, 5:37 PM

#

anyone know any alternatives to serveo.net that also allow custom domains like serveo does? serveo is currently down because people were using it for phishing

dusty citrus Jan 1, 2020, 7:57 PM

#

@rugged flare nice nick. ;)

late fulcrum Jan 1, 2020, 8:22 PM

#

The "happy helmet " (á la Ren and Simply) could be used to force someone to be happy

dusty citrus Jan 1, 2020, 8:22 PM

#

;)

#

That's great!

#

I said Happy New Year to the driver, an hour ago, with not a trace of irony.

#

It's a semantically null idiom that still means what you meant it to mean. ;)

#

(without positing theories about 'wish' phenomena ;)

#

(I also gave him four bux; rather more to the point, I think, haha)

polar wraith Jan 1, 2020, 9:01 PM

#

Mine this year was, "may the Roaring '20s bring you great riches, how ever you define being rich."

dusty citrus Jan 1, 2020, 9:41 PM

#

::flapper::

polar wraith Jan 1, 2020, 11:43 PM

#

Oh my. Less than an hour to Show and Tell. Waaaay too much revelry last night = sleeping in (a lot) and loss of most of the day. 🙂

dusty citrus Jan 1, 2020, 11:44 PM

#

Yeah my one day of revelry was a few days ago so I have my mojo back, sort-of.

spring hazel Jan 1, 2020, 11:45 PM

#

Is show and tell basicly what you made?

polar wraith Jan 1, 2020, 11:46 PM

#

Yes, Show and Tell is people showing the projects they've made, and then immediately afterwards is Ask an Engineer, where LadyAda and PT talk about industry news, current projects, usually some cool videos, new products, and "Top Secret," which are projects they're working on but aren't ready yet.

spring hazel Jan 1, 2020, 11:51 PM

#

@polar wraith are you on show and tell tonight?

polar wraith Jan 2, 2020, 12:32 AM

#

I'm not on, but I'm watching.

polar wraith Jan 2, 2020, 4:58 AM

#

There was a discussion about substations in #general-tech, so I decided to move my long story here.

#

Ha! Power is interesting. When I was the senior UNIX administrator for Cirrus Logic, they were doing VLSI design and small batch fab runs to test new chips. If you interrupt that, you have to start over, so if we lost power it would cost us 275,000 per hour. So we wired the building to two different grids - Freemont and Hayward. We also had a huge room full of lead-acid batteries as a backup. One day, all the lights went out. I turned to the team and said, "uh, that's not supposed to happen." We ran all over the building turning off monitors (the biggest power drain), and then realized it was a long term outage and so we started shutting down servers cleanly. It turns out a construction worker had a previously undiscovered allergy to bees, was driving a D9 Cat at a construction site, got stung, died pretty much instantly but didn't let go of the dead man's switch. The bulldozer crossed the highway and plowed through a substation in Hayward. So Hayward goes dark. It's summer in the Bay Area, so Hayward immediately starts pulling power from the adjacent grid - Freemont. Boom. Everything goes dark. The CEO (Mike Hackworth) was very unhappy at the extended downtime. In my youth and poor judgement, I called a friend at GE and asked what the part number and price was for a GE5 Pressurized Water Reactor (a nuclear reactor). He laughed and gave me all the ordering information. I filled out a company requisition that came out to many millions of dollars, labeld it "backup power" in the "justification" section, and threw it in my outbox, assuming someone would get a laugh. Welllll, CEO was doing a "sign all these papers without reading them." So the procurement department gets the requisition for the "GE5PWR" and calls GE to arrange delivery. GE, of course, laughed at them. They went back to the CEO and explained the vendor wouldn't deliver. Then he took a look at the requisition. He walked into my team room, dropped it on my desk, and said, "don't do that again."

dusty citrus Jan 2, 2020, 5:18 PM

#

this flash drive had a seperate flash IC and had the controller on the other side, i got the drive a few months ago

📎 SanDisk_J922284281.png

echo agate Jan 2, 2020, 5:29 PM

#

Pretty typical construction for a full-size USB flash drive

dusty citrus Jan 2, 2020, 5:38 PM

#

kind of expected it to be a COB chip

late fulcrum Jan 2, 2020, 5:39 PM

#

That would make sense, but perhaps so many of them are packaged as ICs (for high volume use like SSDs) that there's not much of a cost premium.

dusty citrus Jan 2, 2020, 6:58 PM

#

suprised me too that i don't see the SanDisk logo on many of the flash memory chips nowadays

shrewd hatch Jan 3, 2020, 10:50 AM

#

@late fulcrum would you say this is close to the perfect size for a diy pic and place machine https://www.banggood.com/5065cm-Engraving-Area-3000MW-Laser-Engraving-Machine-DIY-Kit-Desktop-Laser-Cutting-p-1268114.html?utmid=11296&cur_warehouse=CN

www.banggood.com

50×65cm Engraving Area 3000MW Laser Engraving Machine DIY Kit Des...

Online Shopping at Banggood.com！

sudden zenith Jan 3, 2020, 2:17 PM

#

https://discord.gg/Fq6CCM Some people use Adafruit products here, so I guess it’s appropriate?

polar wraith Jan 3, 2020, 2:22 PM

#

Oh nice!!!! I'm building a custom CircuitPython High Powered Rocket flight controller. Handles apogee detection, has a GPS and LoRa to broadcast location, and timers for controlling staging.

sudden zenith Jan 3, 2020, 2:23 PM

#

I own a company called BLR Rocket Technologies, and it does TVC controlled model rockets + AI too

#

Cool project too!

#

I like Python

polar wraith Jan 3, 2020, 2:23 PM

#

What's the AI for? Is it actual AI, or ML?

sudden zenith Jan 3, 2020, 2:24 PM

#

Well technically ML but also AI

#

the AI is the controller for the TVC

polar wraith Jan 3, 2020, 2:24 PM

#

Ok. I can see that.

sudden zenith Jan 3, 2020, 2:24 PM

#

I have never tried circuit python

polar wraith Jan 3, 2020, 2:24 PM

#

Pretty cool! Can you post a link to a web site?

sudden zenith Jan 3, 2020, 2:24 PM

#

Sure!

#

https://blrrockettechinc.wixsite.com/blr-inc

Blrinc

Home | BLR Rocket Technologies Inc.

BLR Rocket Technologies Inc. is a small aerospace company, focused on building, launching and reusing small model rockets autonomously. Using TVC or ( Thrust Vector Control ) instead of fins to stabilize the rocket during flight and landing autonomously.

polar wraith Jan 3, 2020, 2:25 PM

#

Thanks! I'll go check it out in a bit.

sudden zenith Jan 3, 2020, 2:25 PM

#

Alrighty

high galleon Jan 3, 2020, 2:54 PM

#

(man I love that place ... you can build Zelda's sword, or a rocket and satelittes ... and everything in between... )

sudden zenith Jan 3, 2020, 2:54 PM

#

What place? @high galleon

high galleon Jan 3, 2020, 2:55 PM

#

here !

#

this discord 🙂

#

reminds me some hackerspaces in squats in Paris ...

sudden zenith Jan 3, 2020, 2:57 PM

#

I’m in Paris rn actually

high galleon Jan 3, 2020, 2:58 PM

#

been to the CCC ?

sudden zenith Jan 3, 2020, 2:59 PM

#

No, what’s that?

late fulcrum Jan 3, 2020, 3:00 PM

#

@shrewd hatch I don't know about "perfect", but it looks like a good bet.

high galleon Jan 3, 2020, 3:01 PM

#

the chaos computer congress : https://events.ccc.de/congress/2019/wiki/index.php/Main_Page

Main Page

#

If I was in France, I'd go every years ...

#

many french hackers/makers I know have their stands each time...

#

long story short : nostalgia ... I'm far from all this now, at least physically...

sudden zenith Jan 3, 2020, 3:05 PM

#

Oh I forgot about 36c3

dusty citrus Jan 3, 2020, 3:10 PM

#

I was thinking about the speed of electron flow through a wire vs. the speed of 'signalling' through fibre optics, over a shorter span (within range of direct connection for either case, such as on a factory floor, for highly-synchronized process communications).

#

First Google hit was this bit:
◽
Speed of 'Electricity'

https://wtamu.edu/~cbaird/sq/2014/02/19/what-is-the-speed-of-electricity/

#

My first thoughts were 'nothing can travel faster than light does; matter (electrons) cannot move faster than some fraction of the speed of light.'

late fulcrum Jan 3, 2020, 3:12 PM

#

Some coax manufacturers give the propagation velocity of their products, useful for adjusting phasing and the like. For things like PCB traces, it can vary from about 0.1C to about 0.6C

dusty citrus Jan 3, 2020, 3:12 PM

#

Wow 0.6C is pretty fast!

#

My guess was beyond a specific reach, 'repeaters' (essentially) govern the practical signalling speeds.

late fulcrum Jan 3, 2020, 3:13 PM

#

That's for fancy coax-like structures with controlled impedance, proper separation, angles, ground planes, and the like. Useful search terms are "stripline" and "microstrip"

dusty citrus Jan 3, 2020, 3:14 PM

#

Thanks. Some hams used 'hardline' coax in some applications; my guess was to limit losses for weak signal work.

late fulcrum Jan 3, 2020, 3:15 PM

#

Yeah, hardline is generally low-loss. Propagation velocity in coax is generally around 0.6C to 0.66C https://ac6la.com/zpunkll19.gif

dusty citrus Jan 3, 2020, 3:15 PM

#

My overall motive was in explaining 'electricity' to new students, meaninfully and (somewhat) factually. ;)

#

I had a conversation on Discord recently where it was important to build some very basic ideas in the mind of the person I was in conversation with.

#

(they exhibited fundamental curiosity ;)

late fulcrum Jan 3, 2020, 3:16 PM

#

Yeah, the article you linked to first is good for that: the propagation speed is much faster than the actual movement of electrons. Like a tube full of marbles, you push a marble in one end, and one pops out the other end, but the marbles themselves haven't moved very much.

dusty citrus Jan 3, 2020, 3:17 PM

#

Yeah I'm trying to get to that kind of thinking, exactly. ;) Thanks.

#

(I don't remember the details anymore; I once felt I knew them pretty well)

#

https://allaboutcircuits.com/ has a nice textbook that starts off with atomic theory (early model) which I thought was going too far into the weeds for some kinds of teaching.

late fulcrum Jan 3, 2020, 3:18 PM

#

It is best to pitch the level and choice of detail to the learner's interests.

dusty citrus Jan 3, 2020, 3:19 PM

#

https://www.allaboutcircuits.com/textbook/direct-current/chpt-1/static-electricity/

#

On Discord you can't see their faces to guess how far over their head you just went. ;)

late fulcrum Jan 3, 2020, 3:19 PM

#

Truel

#

I only recently (a couple of years ago) learned that static electricity is mostly produced by "peeling" more than friction.

dusty citrus Jan 3, 2020, 3:20 PM

#

I was supposed to teach some of this stuff in the Air Force (at ag 22!) and I felt I needed field experience, first, so I turned down the job.

late fulcrum Jan 3, 2020, 3:20 PM

#

It's a little stressful teaching something where you're barely ahead of the students, but boy howdy do you learn fast under those conditions!

dusty citrus Jan 3, 2020, 3:21 PM

#

(My Instructor's favorite off-topic subject .. in the classroom! .. was snowmaking with an angle towards skiiing (he was a ski bum before his career in the military).

#

I had absolutely no idea they were going to give me orders to stay on at that school, when I graduated.

#

Nobody spoke to me about it. I just got the paper. ;)

late fulcrum Jan 3, 2020, 3:22 PM

#

Surprise!

dusty citrus Jan 3, 2020, 3:22 PM

#

I think it was a mistake to not accept the job. But I didn't know. The policy was: you can swap orders with any member of your graduating class.

#

Somebody asked; I stuck them with a guy who's only motive for staying on was a new baby. ;)

#

(wife didn't want to leave town; we were in Denver).

#

I think they tap 'promising' students for this job because few want it (most are making good money in industry).

late fulcrum Jan 3, 2020, 3:24 PM

#

Makes sense

dusty citrus Jan 3, 2020, 3:25 PM

#

I was in a 'satellite' program of a major state run tech school that some EE decided to start up, back in high school. He had his own brand of television manufactured, locally (and didn't succeed in the market).

#

He was a very good teacher.

#

(mainly for the soft subjects; motivating us and giving good sound advice)

#

So, anyway; the subject came up and I didn't want to resort to too much hand-waving. You never know when someone will ask a really good question (and worse, at what level of understanding, to reply with).

late fulcrum Jan 3, 2020, 3:36 PM

#

That's the "stressful" part.

#

That, and when someone asks an oblique question and I suddenly realize I don't really understand the material that that level.

dusty citrus Jan 3, 2020, 3:48 PM

#

Exactly. It wasn't important enough to detour into when I needed to use it as a tool, so I was able to just use the heuristic (rule of thumb) the idea implied, and get on with it.

#

Then someone asks (innocently) what that's really about, and I realize I didn't prioritize it when I encountered it. ;)

#

We have a few here who ask fundamental questions; some of those questions are really good (and others seem like hippie-gazing exercises; fun in their own right).

#

That article is very (very!) close to what I was thinking about and asking (of my existing knowledge).

#

drift velocity was helpful - answers a lot of what I was intending to ask. ;)

#

It sounds like the mass (electron mass) net movement is very very slow (a few meters per hour).

#

I had the idea that 'the non-valence electrons were moving at 0.6C' here. ;)

late fulcrum Jan 3, 2020, 3:55 PM

#

I suspect they move their own diameter in a short span of time, but their diameter is really tiny

dusty citrus Jan 3, 2020, 3:55 PM

#

Well what the author said was they do move very very fast but their net motion is very very slow.

#

(Jitter)

late fulcrum Jan 3, 2020, 3:56 PM

#

(ignoring all those pesky non-localization effects, wave functions, probability, etc. that make electrons not the neat crisp spheres we like to imagine them to be)

dusty citrus Jan 3, 2020, 3:56 PM

#

Yeah I read up on electron theory and atomic theory recently and noticed the version we learned in school was pretty early stuff.

#

Useful in the same way Newton still is, today. An approximation useful for practical application level thinking.

late fulcrum Jan 3, 2020, 3:58 PM

#

Yup. For many things, the Bohr or Rutherford atom is good enough for my purposes. The progress of science does not consist of finding errors and correcting them, it consists of replacing them with new and more subtle errors.

#

Newton's laws work fine for human scales of size and speed, you don't need to worry about relativistic effects when pitching a baseball.

dusty citrus Jan 3, 2020, 3:59 PM

#

I'm still impressed with GPS and the speed of clocks not very far apart (vertically in the gravity well).

#

(I think it's the Bohr model we were taught in high school; but my memory of the famous names assigned to ideas isn't very strong at all)

late fulcrum Jan 3, 2020, 4:03 PM

#

I remember reading about someone on the (aptly named) "time nuts" mailing list taking his kids to the top of a mountain with a cæsium clock in the van to show the time dilation with the change in gravity. He said it was the best 22 nanoseconds he ever spent with his kids.

dusty citrus Jan 3, 2020, 4:04 PM

#

Wow.

#

That's so great.

late fulcrum Jan 3, 2020, 4:05 PM

#

A friend of mine, who's interested in computers, networking, privacy, and time was asked to help draft the spec for the successor to NTP (network time protocol). He was over the moon (and IMHO an ideal choice for the task).

dusty citrus Jan 3, 2020, 4:07 PM

#

There's a hidden presumption: when you have in your hand a device that absolutely required very high level science research, to make it possible to construct it (at all) ..

.. and it's been mass produced (or even just a few well-known instances of it, like reactors or atomic clocks in labs) ..

.. that the device does not require (absolutely) that knowledge background, to bring it into existence (at all).

I fight that prejudice 'every day' (often!) and that's just in myself.

#

And on the Internet this translates into arguments like 'we never went to the Moon at all'.

late fulcrum Jan 3, 2020, 4:09 PM

#

I remember the artist who saw a £9 toaster in a store and decided to try to make a toaster absolutely from scratch (digging up ore, smelting it, etc.). It ended up taking a monstrous amount of learning, time, money, and effort. And that was for a simple low-tech device.

dusty citrus Jan 3, 2020, 4:11 PM

#

Well in fairness they very definitely did show those films to us in high school or junior high school, so there wasn't exactly an informational vacuum going on, wrt to the mining of ores and other large-scale processes our society came up with (and implemented, fully!)

hardy rock Jan 3, 2020, 4:13 PM

#

I was wondering about this a few days ago: With all these microcontrollers and other stuff that we grab and hang onto just in case, is there a somewhat reasonable way for us to measure the speed of light at home?

#

I mean it's a safe bet that we all have at least one GPS-receiving device, but that's pretty indirect.

dusty citrus Jan 3, 2020, 4:15 PM

#

I would guess you would add a multiplying factor somewhere to account for the slow speed of sense-reporting and such, and your time base would need a very accurate oscillator, to begin to think about that problem, @hardy rock
I'm late for 'lunch' and am going afk. 'now' haha. (what is 'now'? ;)

late fulcrum Jan 3, 2020, 4:15 PM

#

I suspect the spinning gear and mirror demonstration could be practically done at home

hardy rock Jan 3, 2020, 4:16 PM

#

@dusty citrus The concept of "now" is the first thing that goes away when you learn about relativity.

dusty citrus Jan 3, 2020, 4:17 PM

#

_ I've heard reports. --Robert DiNiero (in character)_

hardy rock Jan 3, 2020, 4:17 PM

#

@late fulcrum Good place to start looking at it.

late fulcrum Jan 3, 2020, 4:18 PM

#

There are also some standing wave demonstrations that aren't too tough, and if you know the frequency (like of your microwave oven), you can work out the speed from the wavelength. Might be able to do a time of flight with a radar type setup and an oscilloscope

#

In a someone related vein, my sweetie is one of the people who has actually seen an electron beam with their own eyes.

hardy rock Jan 3, 2020, 4:23 PM

#

What does an electron beam look like?

echo agate Jan 3, 2020, 4:26 PM

#

With your bare eyes? Looks like nothin'

late fulcrum Jan 3, 2020, 4:30 PM

#

It looks like something if it's in a rarefied helium atmosphere! https://p.dreamwidth.org/ab8185aa3c49/358375-1152/www.vitriol.com/images/tech/tubes/finebeam/deflect-none.jpeg

#

Those barely visible dark bits above and below the beam are deflection plates. By putting voltage on them, you can bend the beam https://p.dreamwidth.org/62aa76aaecb5/358375-1152/www.vitriol.com/images/tech/tubes/finebeam/deflect-up.jpeg

#

The unearthly lavender glow is the infrared from the electron gun heater confusing the camera. After I made those pictures, I realized why they looked odd, and added an IR-blocking filter to the camera https://p.dreamwidth.org/5b38f2e2ca0e/358375-1152/www.vitriol.com/images/tech/tubes/finebeam/beam-vis.jpeg

#

Note, the beam is very faint in real life. To see it, you have to operate the apparatus in the dark, and let your eyes dark adapt for 20 minutes or so. The photographs were long exposures.

hardy rock Jan 3, 2020, 4:35 PM

#

I was thinking that it would need to scatter off something in order to be visible, or else be shining directly into your eye which doesn't seem very healthy. Pretty images!

late fulcrum Jan 3, 2020, 4:35 PM

#

And you were right!

#

It does also make a visible glow where it strikes the glass https://p.dreamwidth.org/851d2f595edf/358375-1152/www.vitriol.com/images/tech/tubes/finebeam/window-vis.jpeg

hardy rock Jan 3, 2020, 4:36 PM

#

Btw: https://www.youtube.com/watch?v=7WXW2bBWBEg

YouTube

Jefferson Lab

Measure the Speed of Light - With Chocolate!

'C' is for chocolate! 'c' is also the symbol used for the speed of light. Defined as being 299,792,458 meters per second in vacuum, you can take a crack at measuring the ultimate speed using your microwave, a ruler and a bar of chocolate! Yum!

▶ Play video

#

But I guess you could say that any tuned antenna demonstrates the speed of light in a way.

late fulcrum Jan 3, 2020, 4:37 PM

#

Yes, that's a good standing wave demonstration. The one I was thinking of uses pappadums in a similar fashion. https://www.indiatimes.com/trending/jugaad/pappadam-science-uk-physics-professor-s-jugaad-to-study-standing-wave-in-a-microwave-is-epic-364922.html

indiatimes.com

Pappadam Science! UK Physics Professor's 'Jugaad' To Study Standin...

The papadams clearly show the patchy wave pattern by the way it cooks in the mico-oven.

hardy rock Jan 3, 2020, 4:39 PM

#

Papad, pappadam, papadum, happala... I didn't know any of those. TIL.

late fulcrum Jan 3, 2020, 4:40 PM

#

Transliterations from Hindi tend to be variable

hardy rock Jan 3, 2020, 4:42 PM

#

Dying to know word what the 'bot dinged you for there. 😁

#

This is more direct but requires a little bit better 'scope than most of us have: https://www.youtube.com/watch?v=H9kZTm4Xm-8

YouTube

uclaphysicsvideo

How to Measure the Speed of Light

▶ Play video

late fulcrum Jan 3, 2020, 5:51 PM

#

Story about the accent I picked up at an Indian restaurant and then being mistaken for another ethnicity.

#

Even a fairly ordinary older 'scope can measure 60ns. That's what I was getting at with my "time of flight" and "radar" comments. I figured it would be tricky to get a short-enough laser pulse to do it with light, but on thinking about it, it's not too hard to make a short pulse generator and ordinary laser diodes can be modulated easily with sharp risetimes.

hardy rock Jan 3, 2020, 6:01 PM

#

I'm not a scope ninja. 😄 I was thinking that 100 MHz might be enough to tell 50ns from 60ns from 70ns but not much better, but I don't really know if that's how it works. Of course it wouldn't be too hard to increase the distance, especially with multiple reflections.

late fulcrum Jan 3, 2020, 6:04 PM

#

I used to be a scope ninja. Repaired oscilloscopes for a particle beam physics laboratory.

stray wind Jan 3, 2020, 6:14 PM

#

@late fulcrum I read laboratory as "factory" and was picturing a place that made particle beams for consumer use. Nicely packaged and shipped next day for the right price.

dusty citrus Jan 3, 2020, 8:21 PM

#

🔹
Okay, so homopolar motor
https://youtu.be/4CGjs-Z7bDE?t=238

#

(That's the money shot; rewind to the beginning of the video to see how he got that far)
🔻
That's going to show that this:
https://www.quora.com/Why-does-a-wire-heat-up-if-a-current-passes-through-it

#

from:
https://www.quora.com/profile/Vic-Alcabasa
is true (or is at least somewhat true, in places).

#

quote
current is a form of an electromagnetic propagation. the so called electron flow is an electromagnetic induction since electron is both the carrier of electric charge and magnetic moment ..

#

.. 'the electron flows' doesn’t literally mean it travels along the length of wire. ..

#

.. It means that its magnetic field is reflected around the surface of the conductor in a circular motion producing rotating magnetic fields around the wires and its electric charge at the same time is induced in the electric field generating net voltage potential across the wire. /endquote

polar wraith Jan 3, 2020, 8:29 PM

#

@stray wind Last place I worked that made beams was FermiLab.

#

Hmmm. Am I the only one who sees something on "New New New" and keeps going back to the New Products page to hit reload? 🙂

dusty citrus Jan 3, 2020, 8:41 PM

#

Reenact Faraday's original motor (1821):
https://www.youtube.com/watch?v=r967ko07qg8

hardy rock Jan 3, 2020, 8:55 PM

#

Hold up there y'all, what's this I see about open-source jet engines? https://blog.adafruit.com/2020/01/03/us-air-force-developing-an-in-house-jet-engine-aviation-prototyping-hackaday-wrightpattafb/

Adafruit Industries - Makers, hackers, artists, designers and engineers!

US Air Force developing an in-house jet engine #Aviation #Prototyp...

Hackaday highlights work done by the US Air Force at Wright-Patterson to rapidly develop an open source jet engine. The Responsive Open Source Engine (ROSE) is designed to be cheap enough that it …

polar wraith Jan 3, 2020, 8:58 PM

#

Jet engines. Boy, that brings back memories....

hardy rock Jan 3, 2020, 9:04 PM

#

@polar wraith Here you go then, perfect chance to revisit those old memories. Be sure to take lots of pictures. 😁

dusty citrus Jan 3, 2020, 9:04 PM

#

Really good sized microammeter in this Faraday Disk demo:
https://www.youtube.com/watch?v=MT4s-pxc9sM

polar wraith Jan 3, 2020, 9:08 PM

#

@hardy rock I took pictures where I could. I used to be a consultant to the Engineering Editor at Aviation Week and Space Technology. I also founded the Skunk Works mailing list, which got me into some interesting places. I still have my all-areas-no-escort-required-flightline-approved badge for DFRC/Edwards AFB....

late fulcrum Jan 3, 2020, 9:55 PM

#

It's possible to bodge up a jet engine fairly quickly these days. A lot of people build them by adding a combuster to a turbocharger, but there are other ways. I was watching a youtube video a few months back discussing the proper hole spacing/size/arrangement for homemade combusters. It's amazing what's out there.

polar wraith Jan 3, 2020, 9:56 PM

#

@late fulcrum Didn't Colin Furze do a pulsed jet engine on a go-cart a while back? I'll have to go search his channel....

late fulcrum Jan 3, 2020, 9:59 PM

#

I wouldn't be a bit surprised.

#

Here's one of the ones I had watched: https://www.youtube.com/watch?v=yuOsQEjqEP0

YouTube

Darnell Steel

Home-built Gas Turbine Turbojet Engine - 2nd Documentary

I’ve built a core gas turbine engine for possible VTOL prototypes or working on gas turbine engines for other application uses. This video shows some of my trails and errors. Sharing my documented clips of gas turbine build since so many seem to have same interest. I've sin...

▶ Play video

dusty citrus Jan 3, 2020, 10:15 PM

#

subtitle .. or .. how I lost that eye .. and arm

hardy rock Jan 4, 2020, 12:57 AM

#

Even before YouTube, some of those crazy backyard experimenters had personal websites with videos of their home-built jets. Really clever work from resourceful folks but the jets would always suffer from very bad fuel efficiency, same as early experimental designs from the late '30s and '40s, due to the low compression and expansion ratios achievable from single-stage compressors and turbines. (An automotive turbocharger is an adjunct to the pistons and cylinders, where a lot more of that happens.) We probably shouldn't be too surprised that the self-selected group who build these things wouldn't be inclined to dive too deep into mathematics or thermodynamics. The people at Wright-Patterson might be a bit stronger in those areas. 😄

dusty citrus Jan 4, 2020, 4:14 AM

#

🐒

crystal orbit Jan 4, 2020, 11:23 PM

#

📎 image0.jpg

late fulcrum Jan 4, 2020, 11:27 PM

#

Cool bodge!

hardy rock Jan 4, 2020, 11:27 PM

#

Needs more wires.

crystal orbit Jan 4, 2020, 11:48 PM

#

Took longer than I thought to solder all those wires and was wondering if this was the right way to do arduino projects xP

#

Also I’m freaking out because I’m not getting anything from my DHT22

#

📎 image0.jpg

#

Must be the library I’m using since I get the same thing for a perfectly fine DHt11

dusty citrus Jan 5, 2020, 12:51 AM

#

I'm looking at chassis from digikey (Hammond and Bud) tonight.

#

They have 17x13x4 for about 50 bux, 5-sided aluminum box (bottom cover plate may or may not come with it; don't remember).

idle iron Jan 5, 2020, 7:14 AM

#

"Samsung Prototypes First Ever 3nm GAAFET Semiconductor" 3nm??? i thought intel still struggling with 10nm

polar wraith Jan 5, 2020, 9:43 AM

#

I' keep refreshing the new products page waiting for the JST PH kits to become available. Why so excited about PH terminals? See picture. These are some LiPo batteries I ordered on E-Bay from a Chinese source. They arrived just tossed in one of those ubiquitous gray plastic bags and the customs declaration said the contents were "USB adapters." (I suspect the shipper broke the law somewhere in here.) I want to put on the PH terminals and try to charge these up. It may be exciting. [Edit: at least they had a bit of masking tape covering the positive wire tips.]

📎 china_lipos.jpg

polar wraith Jan 5, 2020, 11:20 AM

#

Unfortunately, there is no "mushroom cloud" emoji.... sparky

ocean sigil Jan 5, 2020, 11:25 AM

#

I looked for one too!

civic turtle Jan 5, 2020, 2:48 PM

#

@polar wraith it'll be interesting to see if a) they're at rated capacity, and b) if they have the usual over/under/short/etc protection

polar wraith Jan 5, 2020, 3:05 PM

#

It looks like they have protection, but I can't really tell without a teardown, and I'm extremely nervous about disassembling a LiPo. I'm definitely going to test the capacity.... I'll let you know what I find. The printing says 3700 mAh, but, ah, sometimes those are ... optimistic.

civic turtle Jan 5, 2020, 5:50 PM

#

some of the protection can be tested, carefully... 🙂

#

at least they've given you a ballpark; had to use a tester to determine the capacity of a lipo with no label in a USB charger I found 🙂

shrewd hatch Jan 7, 2020, 12:45 PM

#

📎 20200107_082118.mp4

#

pneumatics and gravity

#

let this be a lesson to all secure all pneumatic pistons before turning them on

late fulcrum Jan 7, 2020, 6:08 PM

#

From your misfortune comes our learning. Thank you for that great demonstration!

shrewd hatch Jan 7, 2020, 8:38 PM

#

lol i have them connected now

#

but @late fulcrum what do you think that is that i am building

late fulcrum Jan 7, 2020, 9:16 PM

#

Cubesat launcher?

shrewd hatch Jan 7, 2020, 9:16 PM

#

nope

late fulcrum Jan 7, 2020, 9:17 PM

#

Retroreflector mount?

shrewd hatch Jan 7, 2020, 9:17 PM

#

nope

late fulcrum Jan 7, 2020, 9:17 PM

#

Lidar scanning robot?

shrewd hatch Jan 7, 2020, 9:17 PM

#

nope

late fulcrum Jan 7, 2020, 9:18 PM

#

Three strikes, I'm out.

shrewd hatch Jan 7, 2020, 9:18 PM

#

ai facility management sim

late fulcrum Jan 7, 2020, 9:19 PM

#

Note to self: bring Portal gun when infiltrating AI facilities

shrewd hatch Jan 7, 2020, 9:20 PM

#

lol

#

i also fixed my 2nd 3d printer

late fulcrum Jan 7, 2020, 9:20 PM

#

Nice! You're productive!

shrewd hatch Jan 7, 2020, 9:21 PM

#

i was waiting for the pneumatic fitting for the Bowden to come in and it came in today

devout flint Jan 7, 2020, 9:23 PM

#

I read that as "second third printer" and wondered what you were saying 🙂

shrewd hatch Jan 7, 2020, 9:26 PM

#

you say to the person who has 3 3dprinters

#

and is building another

#

and a pnp machine

late fulcrum Jan 7, 2020, 9:30 PM

#

Warming up my Portal gun...

📎 IMG_20200107_1623573.jpg

shrewd hatch Jan 7, 2020, 9:36 PM

#

i will say it is a interesting exparament

#

https://i1.theportalwiki.net/img/thumb/7/79/GLaDOS_P2.png/400px-GLaDOS_P2.png

#

i still need to find a use for this structure

late fulcrum Jan 7, 2020, 9:42 PM

#

Someone didn't listen to LadyAda's excellent "build robot friend" advice.

shrewd hatch Jan 7, 2020, 9:44 PM

#

?

late fulcrum Jan 7, 2020, 9:47 PM

#

I have trouble thinking of GLaDOS as a friend for some reason.

#

https://www.adafruit.com/product/2415

ADABOT "Make Robot Friend" Poster

Here at Adafruit, we envision a future where robots, humans, cyborgs, replicants, cylons, and all other types of artificial intelligence and electro-human hybrids will live in ...

dusty citrus Jan 8, 2020, 1:10 AM

#

GLaDOS is basically a human inside a machine

#

so thats why shes dangerous

#

skynet is way more dangerous

#

imagine getting so far in minecraft and all of a sudden skynet just spreads onto your PC and locks it up

shrewd hatch Jan 8, 2020, 1:15 AM

#

https://www.youtube.com/watch?v=LPcPUwL6MjQ

YouTube

FitMC

2b2t: MAN VS. MACHINE

Combat A.I. has finally been introduced into the oldest anarchy server in Minecraft. What happens next?
My Twitter: https://twitter.com/SonOfShoop
My Instagram: https://www.instagram.com/fitmcsippycup/
My Twitch: www.twitch.tv/realfitmc
The Baritone Project: https://github.co...

▶ Play video

#

on that note

dusty citrus Jan 8, 2020, 1:15 AM

#

neural networks man

#

they are spreading

#

next thing watson will be a hyper intelligent AI taking over everything and taking control of boston dynamics robots

dusty citrus Jan 8, 2020, 11:56 PM

#

🛩️ ◾ 🛩️ I am having way too much fun, now that it's January.

crystal orbit Jan 9, 2020, 5:02 AM

#

Is the bmp280 sensor typically off by over 100 meters for altitude?

#

Never mind. I never corrected for my local altitude

shrewd hatch Jan 11, 2020, 4:43 AM

#

📎 20200111_004140.mp4

#

when pneumatic systems work....without electronics other then the pump

late fulcrum Jan 11, 2020, 3:35 PM

#

I have a fair amount of admiration for fluidic engineering like that.

shrewd hatch Jan 11, 2020, 5:07 PM

#

currently only air rather keep the fluids away until i have it finalized

late fulcrum Jan 11, 2020, 5:30 PM

#

Gases and liquids are both fluids in this context.

dusty citrus Jan 12, 2020, 3:41 PM

#

https://media.discordapp.net/attachments/548799170765389834/665938094574534686/unknown.png
colemak DH, ansi, what do you think guys? any suggestions?

dusty citrus Jan 12, 2020, 9:01 PM

#

Oh god no

dim temple Jan 13, 2020, 1:22 AM

#

.pinout

polar wraith Jan 13, 2020, 1:35 PM

#

AdafruitNW personnel may be unable to travel today because of inclement weather. You should discuss alternative work arrangements with your supervisors. (Sorry, poking fun at corporate communications in some places; I think everyone at AdafruitNW works from home.) 🙃

#

At least it's pretty.

📎 20200113c.jpg

sick adder Jan 13, 2020, 1:48 PM

#

ooh if you hover the adafruit icon in your server list, it animates

polar wraith Jan 13, 2020, 1:49 PM

#

@sick adder I noticed that a few minutes ago. Maybe I'm just inattentive, but is that new?

sick adder Jan 13, 2020, 1:50 PM

#

I dunno, they kept changing the icon from halloween through the end of the year, so maybe the "regular" icon did it for a long time, or maybe it's a new upgrade

late fulcrum Jan 13, 2020, 1:50 PM

#

Some of the previous ones would switch to an alternate form.

spice moss Jan 13, 2020, 1:51 PM

#

more winter than here in Finland

polar wraith Jan 13, 2020, 1:55 PM

#

@spice moss Really? How are Valteri and Kimi going to get their winter rally practice in?

late fulcrum Jan 13, 2020, 1:55 PM

#

Winter tyres are still required 🙂

spice moss Jan 13, 2020, 1:56 PM

#

well in lapland there is record numbers of snow

#

most of finland is not that lucky

polar wraith Jan 13, 2020, 1:57 PM

#

That seems ... unusual.

spice moss Jan 13, 2020, 1:57 PM

#

climate change with lower cold weather make it so sadly

#

even snow castle building isnt went as usual

#

sounDome build phase not started yet because no cold days

polar wraith Jan 13, 2020, 2:00 PM

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Oh wow! That's quite sad.

spice moss Jan 13, 2020, 2:01 PM

#

even bunnies and other animals have hard time too

#

when you use change your fur color to hide from predators but weather isnt winter so as bunnies change the fur to white for winter

late fulcrum Jan 13, 2020, 2:08 PM

#

Like the speckled moths in London during the industrial revolution where everything turned darker because of all the soot.

spice moss Jan 13, 2020, 2:34 PM

#

@polar wraith well slippery practice can be done in non winter conditions too like have track where corner for example is surface with metal and oil to make it more slippery then it is slippery right?

#

or usewater

polar wraith Jan 13, 2020, 2:38 PM

#

Yes, I suppose that's true. I know they've practiced on lakes before, but if it's that warm it might not be safe to do that.

drowsy zephyr Jan 13, 2020, 2:54 PM

#

hey guys, question, where can i get more info on google internships?

polar wraith Jan 13, 2020, 3:23 PM

#

@drowsy zephyr What questions do you have beyond what the Google Student/Internship site answers? https://careers.google.com/students/

Students - Google Careers

drowsy zephyr Jan 13, 2020, 3:30 PM

#

like are there any sponsorship programs?

#

like the programs which have accomodations and basic living covered

#

im on a poor spectrum to be covering the whole thing, heheheh

polar wraith Jan 13, 2020, 3:34 PM

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Ahhh, I'm not sure of paid/sponsored internships. I bet there's a "contact" link on that page so you can ask questinos.

drowsy zephyr Jan 13, 2020, 11:10 PM

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Darn, okay

drowsy zephyr Jan 14, 2020, 6:40 AM

#

after looking on their contacts page, i cannot find any information of their help desk, live chat, or their contact support for other topics

#

they only have support for their products, and that's it

crystal ore Jan 14, 2020, 7:23 AM

#

Google internships are, AFAIK, paid positions, enough that you can support yourself during them.

#

But they are also very competitive.

light ice Jan 14, 2020, 7:41 AM

#

FYI - Google internship application window closes soon (if not already closed)

drowsy zephyr Jan 14, 2020, 9:57 AM

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I know

#

I need a lot more info than that, does anyone have any connections?

#

I cant even pay myself to go there T_T

lyric hull Jan 14, 2020, 3:28 PM

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this is the server i always come to for help xD how are you guys

crystal ore Jan 14, 2020, 4:27 PM

#

@drowsy zephyr You should probably just apply. If you get accepted, then you'll have a recruiter and a supervisor who can help you navigate the logistics. If you don't get accepted, then worrying about the money is pointless.

drowsy zephyr Jan 14, 2020, 4:35 PM

#

i see

#

what about time issues?

#

im worried that the time will overshoot or overlap my university

#

especially since im still at college until 22nd of may ish

#

@crystal ore ?

crystal ore Jan 14, 2020, 5:00 PM

#

That shouldn't be a problem. Lots of students have different college schedules, so there's some flexibility. It's more like a summer job than a unified program, so you just negotiate your starting and ending time with your supervisor.

drowsy zephyr Jan 14, 2020, 5:28 PM

#

Ah i see, thank you

dusty citrus Jan 15, 2020, 6:59 AM

#

Trying to think of an 'easy' way to add physical templates to a physical front panel (to relabel LEDs and switches). /prototyping

#

all I got so far is 'laser printing to paper templates' foo.

#

Maybe a thin and durable overlay on top, transparent, to keep ink smudges to a dull roar

#

(and four guide posts, one in each corner of the front panel, to align and secure it)

#

Thinking about maybe 0.65" spacing on toggle switches or LED's.

#

(panel is roughly 20" x 11")
https://www.hammfg.com/electronics/small-case/general-purpose/1456
1456WL1BKBU
https://www.hammfg.com/files/products/1456/1456wl1bkbu.jpg

#

https://www.hammfg.com/files/parts/pdf/1456WL1BKBU.pdf
(second one, below, closer to reality, maybe):

#

http://www.hammondmfg.com/pdf/1456WL1.pdf

hardy rock Jan 15, 2020, 8:23 AM

#

@dusty citrus Are you a Brother P-touch user? I don't have one, probably will eventually, but I know people much more organized than I'll ever be who put P-touch labels on everything. They look good and seem to last.

#

Another thought is that I've got a Cameo Silhouette vinyl cutter that can also be a plot plotter. It could draw any sort of graphics desired and also cut the outline and any opening in an adhesive vinyl sheet.

late fulcrum Jan 15, 2020, 2:18 PM

#

I've used the laser printer approach before, it works reasonably well. You can also get a custom PCB made with any openings, markings, and even electrical connections and mounted components you want.

dusty citrus Jan 15, 2020, 4:23 PM

#

Maybe I'll just cutout a bezel from an Adafruit box and say I'm 'being economical and repurposing' ;)

#

Hammond apparently makes the cutouts before they paint. They don't modify built chassis - they fabricate custom chassis from raw stock.

#

Presumably they make the cutouts in the sheet aluminum before bending it (at all).

#

I have a suspicion if I work it too much it'll come out wavy.

late fulcrum Jan 15, 2020, 4:25 PM

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I make stuff out of (generally repurposed) cardboard a lot. It's a great material.

dusty citrus Jan 15, 2020, 4:25 PM

#

I know for vacuum tube sockets the ham builders used a die operated with a wrench to do the cutouts.

late fulcrum Jan 15, 2020, 4:26 PM

#

Ah yes, the old Greenlee chassis punches. I have a set. There are even special ones for things like BNC jacks, D-sub connectors, etc.

dusty citrus Jan 15, 2020, 4:26 PM

#

Right!

#

Since we're offtopic - I tried one of those (local grocery chain) Gift Cards today. It lets you suck part of the balance instead of the entire $50 value.

#

I called the 1-888 number and got someone who clearly didn't understand what I was saying.
They were in the P.I.

#

(once they said I can only buy gasoline with this card, I went on tilt ;)

#

So if I have it correct the card still has $35 of it's $50 face value, remaining.

#

They really don't want to disclose that you don't have to spend it all in one visit.

late fulcrum Jan 15, 2020, 4:30 PM

#

I worked for an outfit once that gave small bonuses via gift cards. Unfortunately, they gave them out in mid-December and the cards expired at the end of the year. I made it a point of honor to use every cent, which involved having cashiers do some interesting "split tender" transactions. Fortunately, my sweetie used to be a cashier and could explain to them how to do it.

dusty citrus Jan 15, 2020, 4:31 PM

#

And without offending them, either. ;)

#

On ours, you just tap 'no' instead of 'yes' when it asks if that's the amount you want.

#

That enters the loop where you can put only part of a balance in.

#

(works with all forms of tender, I think)

late fulcrum Jan 15, 2020, 4:32 PM

#

This was a few years ago, before such options were common.

dusty citrus Jan 15, 2020, 4:32 PM

#

I'm just learning it this year. ;)

#

I think they're doing all they can to improve teller-absent services at checkout time. No cashier means no paycheck to write.

#

So I'll try the card again another day and see what's what. I expect it'll function just fine.

dusty citrus Jan 15, 2020, 7:04 PM

#

seen a 6dof gyro

#

http://adafru.it/4480

late fulcrum Jan 15, 2020, 7:05 PM

#

Perfect for my D-0 robot

#

Or inverted pendulum/balancing robots in general

dusty citrus Jan 15, 2020, 7:06 PM

#

My pilot friend argued vociferously about what you can and cannot detect with these sensors.

#

I think the use case people are after is measuring displacement (you walk down a hall -- how far and/or in what direction did you go)

late fulcrum Jan 15, 2020, 7:07 PM

#

It's true that the sensor cannot distinguish between gravity and acceleration, which is relevant here, however the code can (mostly) derive the acceleration because it is applying it via the motor drive.

dusty citrus Jan 15, 2020, 7:26 PM

#

https://www.dslreports.com/forum/r30018184-Cutting-rectangular-holes-in-metal-chassis

#

https://www.pololu.com/product/749

#

custom laser cutting svcs ;)

#

We can laser cut various thicknesses of plastics, woods, steel, paper, cloth, and more up to 47.5″ × 47.5″. We stock acrylic, ABS, POM (Delrin), styrene, birch plywood, stainless steel, and can quickly obtain many plastics through our suppliers. You can also ship us your materials

late fulcrum Jan 15, 2020, 7:37 PM

#

I've used Pololu's laser cutting/engraving (and plastic procurement) service, I'm pretty satisfied with it.

📎 drstrange-leds.jpg

dusty citrus Jan 15, 2020, 7:38 PM

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Well the OSHCUT service could do 0.081 aluminum, to match my chassis. ;)

#

I could do a rough cut myself and have them make me a bezel to cover my hack job. ;)

#

If Star Trek crew visits and finds that artifact.

#

I know a lot of symbols and I didn't parse that at all.

#

q-tip hieroglyph

late fulcrum Jan 15, 2020, 7:46 PM

#

A lot of the Greek is in-jokes like "TIKIL GOMEN" (an Ethiopian dish I'm fond of), "OSSIFRAGE" (a reference to the magic phrase in a long-ago decryption contest), "GARLIC" (another food I'm fond of), "REIGNING KING T'CHALLAH" (a reference to Black Panther), and my own name. Most of the rest of it was chosen for visual effect.

dusty citrus Jan 15, 2020, 7:48 PM

#

Can it spark something? Looks like it's supposed to spin and 'somehow' energize the pointy ends of the LEDs.

late fulcrum Jan 15, 2020, 7:48 PM

#

Here's what I built it for

📎 drstrange-prop.jpg

dusty citrus Jan 15, 2020, 7:48 PM

#

That makes sense in context. ;)

#

I totally forget that people do stuff for those ends. I don't have words for it though.

#

Are those LEDs coplanar with the primary disk or parallel-planar? (to make up a word)

dusty citrus Jan 15, 2020, 8:13 PM

#

He actually looks like docter strange

late fulcrum Jan 15, 2020, 8:24 PM

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Yes, I drilled holes in the circumference and epoxied LEDs into them (the previous picture shows that better).

#

I wanted really good coupling of the light from the LEDs into the acrylic.

dusty citrus Jan 16, 2020, 12:01 AM

#

how long ago was that pic?

mint trellis Jan 16, 2020, 12:27 AM

#

ms!ping

rare birchBOT Jan 16, 2020, 12:27 AM

#

:greencheck: pong! 76ms

mint trellis Jan 16, 2020, 12:27 AM

#

oof

#

ms!pid 10

#

ms!p id 10

rare birchBOT Jan 16, 2020, 12:27 AM

#

Product ID • Adafruit

Click Here For Your Product

Click the link for the product you requested

mint trellis Jan 16, 2020, 12:27 AM

#

ms!p id 1502

rare birchBOT Jan 16, 2020, 12:27 AM

#

Product ID • Adafruit

Click Here For Your Product

Click the link for the product you requested

dusty citrus Jan 16, 2020, 10:01 PM

#

My dad gave me the idea of looking for a part time job programming in Java

#

I’m so freaking nervous to even touch the subject

#

But I know I may actually find something beneficial for me at such a young age.....sigh

#

I’m scared

fickle slate Jan 16, 2020, 10:06 PM

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If I used Java I would be scared too

#

/s

stray wind Jan 16, 2020, 10:07 PM

#

@dusty citrus Putting yourself out there at any age can be scary. However, you're right that you may find something beneficial. The more you put yourself out there, the easier it gets, and the more experience you get with the process, the better off you are. Also increases your chances of success.

fickle slate Jan 16, 2020, 10:08 PM

#

You can probably get an internship if you can show off some completed projects you have made

dusty citrus Jan 16, 2020, 10:08 PM

#

I’m going to get an Oracle certification

fickle slate Jan 16, 2020, 10:08 PM

#

Also ^ the earlier you get experience the easier it would be to find opportunities in the future

#

You will probably need a resume, and i would recommend putting github links to stuff you have written

dusty citrus Jan 16, 2020, 10:10 PM

#

Oooohhh, good idea

#

The biggest I’ve got is my Discord bot, and a Minecraft plugin I made in the summer, lol

#

But, I mean, I don’t just do Java

#

That’s just the one I’ve been challenging myself with more recently

stray wind Jan 16, 2020, 10:11 PM

#

GitHub presence is something a lot of places look at now. It's a good way to show your experience.

dusty citrus Jan 16, 2020, 10:11 PM

#

Alright, great. I love GitHub. I just haven’t used it for a very long time

#

But I get the concept

fickle slate Jan 16, 2020, 10:11 PM

#

I use it as a backup for all my code :V

dusty citrus Jan 16, 2020, 10:12 PM

#

Yeah

#

I’ve never...collaborated with anyone

fickle slate Jan 16, 2020, 10:12 PM

#

Especially since they allow like 5 private repos per user now

dusty citrus Jan 16, 2020, 10:12 PM

#

My 6 years of hobbyism have been highly introverted

grave crest Jan 16, 2020, 10:57 PM

#

And don't let age or time discourage you -- sure, the earlier you get experience, the more you can acquire and more doors can open. But starting something today is equally as good for you.

high galleon Jan 17, 2020, 12:50 AM

#

I tried 3 times to start learning java... had no problem with basic, TCL, PHP, JS... but Java I can't.

late fulcrum Jan 17, 2020, 1:10 AM

#

I had similar issues with Perl and JS. Other languages, no problem, those I just got frustrated and spun my wheels.

dusty citrus Jan 17, 2020, 9:59 PM

#

can the RA8875 run in 480x800 (vertical) instead of 800x480

late fulcrum Jan 17, 2020, 10:04 PM

#

I doubt it (the LCD probably enforces an update pattern and the driver merely follows it) but since the code just puts a bitmap managed by the AdaFruit GFX library, you can probably just use the ordinary .setRotation() call to orient the graphics on the screen.

fickle slate Jan 18, 2020, 6:21 AM

#

https://youtu.be/9Ry4QBQejFU didn't know Scotland had an army

YouTube

bigclivedotcom

Scottish army ration (MRE) with radioactive heater.

A review of a VERY rare Scottish army ration. Carbohydrate-rich to match the Scottish diet and protect against the harsh cold environment of war and Scotland in general.
It appears to be made of all the key Scottish, Irish and Canadian food groups with the bonus of a slightl...

▶ Play video

mint trellis Jan 18, 2020, 7:37 PM

#

ms!ping

rare birchBOT Jan 18, 2020, 7:37 PM

#

:greencheck: pong! 97ms

mint trellis Jan 18, 2020, 7:37 PM

#

ms!eval message.guild.iconURL

rare birchBOT Jan 18, 2020, 7:37 PM

#

Run

Input: js message.guild.iconURLOutput: xl https://cdn.discordapp.com/icons/327254708534116352/a_b62febfc338b790c71d5e882ddae2bf9.jpg

mint trellis Jan 18, 2020, 8:18 PM

#

!adabot

dusty citrus Jan 18, 2020, 8:35 PM

#

USPO got my stuff to me intact, from across the country, for $8.99 .. only irritant was the delivery came with the regular first class delivery, instead of earlier in the day.

#

They win on time (by a large margin).

#

I normally prefer UPS (brown)

#

Microchip 3v Tips n Tricks for alternatives to level shifting schemes:
https://www.newark.com/pdfs/techarticles/microchip/3_3vto5vAnalogTipsnTricksBrchr.pdf

dusty citrus Jan 18, 2020, 10:15 PM

#

does anyone know if we can use bluetooth on the pyportal's ESP32 co-processor?

finite monolith Jan 18, 2020, 11:26 PM

#

I believe that the hardware is capable, but the software hasn't been written to do it.

dusty citrus Jan 19, 2020, 4:09 AM

#

Clue is going to be exciting... It's adafruit so it's awesome... not trying to embarrass other maker companies out there.

polar wraith Jan 19, 2020, 1:18 PM

#

Rather off-topic, but SpaceX is going to destroy a Falcon 9 84 seconds after launch, when it's going about Mach 2, to test the abort/crew escape systems. It promises to be spectacular. NASA's coverage starts in about 20 minutes. https://youtu.be/ARIZnaMXTEU

YouTube

NASA

SpaceX Crew Dragon In-Flight Abort Test

NASA and SpaceX are targeting 9 a.m. EST, Sun., Jan. 19 for the In-Flight Abort Test. The launch window is four hours. This uncrewed test will demonstrate the Crew Dragon spacecraft's escape capabilities, showing that it can protect astronauts even in the unlikely event of an...

▶ Play video

dusty citrus Jan 19, 2020, 1:24 PM

#

holicau

dusty citrus Jan 19, 2020, 1:44 PM

#

can't resize the youtube window manually so I zoomed it in chromium ;)

#

no audio either

#

so what, nasa can't put an intern on youtube to keep the feed live?

#

this is 2020 not 1920. they're not waiting in the cabin for the snow plow to arrive.

#

I take that back (partially; they can still do an intern on the microphone)

#

launch window is 6 hours.

#

NASA’s administrator announced early on Sunday that the launch will occur no earlier than 10 a.m. Eastern time.

#

Launch Update: Now targeting 10 am EST launch for #CrewDragon In-flight Abort Test due to weather. Crew Dragon is healthy. http://blogs.nasa.gov/commercialcrew/

dusty citrus Jan 19, 2020, 3:02 PM

#

countdown is at 7:22 now.

#

(on the feed on youtube not nec. on the launch)

#

@polar wraith btw thanks for the heads-up on this!

#

when a rocket launches from Earth, it aims 'downrange' .. it's like a cannonball shot from the top of a mountain that keeps falling and just misses the Earth .. forever. That's what an orbital launch does.

#

Theoretically (in an air-free environment) the cannonball hits the cannon .. from behind .. after circling the Earth once.

#

Everything else is accounted for by the presence of an active source of continuing thrust (new energy; whereas the cannonball travels 'ballistically' .. it 'coasts'. Rockets don't. ;)

spice moss Jan 19, 2020, 3:08 PM

#

spaceX webcast started

#

https://www.spacex.com/webcast

SpaceX

CREW DRAGON LAUNCH ESCAPE DEMONSTRATION | SpaceX

SpaceX is targeting Sunday, January 19 for an in-flight test of Crew Dragon’s launch escape capabilities from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. This test, which does not have NASA astronauts onboard the spacecraft, is intended to demon...

dusty citrus Jan 19, 2020, 3:09 PM

#

thanks @spice moss

#

https://www.youtube.com/watch?v=mhrkdHshb3E&feature=emb_logo equivalent feed.

#

Yours (theirs) has an audio feed. ;)

#

Asimov said that nobody (in science fiction) predicted the first Moon mission would be broadcast on live TV. He said they predicted rocket travel and TV but not combined. ;)

#

There's a great speech he gave -- nasa publishes a PDF of it.

#

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19850016683.pdf

#

(page 63 for that quote)

spice moss Jan 19, 2020, 3:33 PM

#

all good so far

ocean sigil Jan 19, 2020, 3:39 PM

#

Wow!

high galleon Jan 19, 2020, 3:40 PM

#

very nice. TY for the link 🙂

dusty citrus Jan 19, 2020, 3:46 PM

#

nice. cya. /me gone

grave crest Jan 19, 2020, 7:31 PM

#

Nothing makes me happier to see a test like this be completely successful. 🚀

mint trellis Jan 19, 2020, 7:36 PM

#

?livestreams

#

?streams

#

?live

#

oof

#

?events

#

ok

#

@solar ridge be slow

#

?ping

solar ridgeBOT Jan 19, 2020, 7:36 PM

#

Pong! 173ms

grave crest Jan 19, 2020, 7:46 PM

#

I think you're looking for ?showtimes

#

?showtimes

solar ridgeBOT Jan 19, 2020, 7:46 PM

#

3D Hangouts - 11am ET Wednesdays
Show & Tell - 7:30pm ET Wednesdays
Ask an Engineer - 8pm ET Wednesdays
Desk of Ladyada - Random hacker times
John Park's Workshop - 4pm ET Thursdays

mint trellis Jan 19, 2020, 7:46 PM

#

oh

#

k

grave crest Jan 19, 2020, 7:46 PM

#

No worries, I had to look it up too 😉

mint trellis Jan 19, 2020, 7:47 PM

#

thx 🙂

dusty citrus Jan 20, 2020, 1:15 AM

#

@stray wind <@&327289013561982976> what are the discord servers Adafruit have partnered with?

dusty citrus Jan 20, 2020, 2:11 AM

#

📎 wom2.PNG

#

gmod wiremod

misty sierra Jan 20, 2020, 4:39 AM

#

i.e. /dev/null 😉

dusty citrus Jan 20, 2020, 4:52 AM

#

It’s crazy how I can play a song on the piano I’ve been working on, but can’t remember the exact notes when I think about playing it

#

It’s like me being able to read some basic japanese easily, but completely freezing when I think of writing it

dusty citrus Jan 20, 2020, 6:31 AM

#

?flip

solar ridgeBOT Jan 20, 2020, 6:31 AM

#

@dusty citrus tails

dusty citrus Jan 20, 2020, 6:32 AM

#

See what the dyno bot on the server can do here: https://dyno.gg/commands/

Dyno - Discord platform

Dyno offers a powerful community bot and a place to advertise your server, easy and free.

#

?joke

solar ridgeBOT Jan 20, 2020, 6:32 AM

#

dynoError Error 404: Humor module not found!

dusty citrus Jan 20, 2020, 6:33 AM

#

?joke

solar ridgeBOT Jan 20, 2020, 6:33 AM

#

dynoError Error 404: Humor module not found!

dusty citrus Jan 20, 2020, 6:33 AM

#

okay...

#

?dogfact

solar ridgeBOT Jan 20, 2020, 6:33 AM

#

dynoError No doggo facts founds.. Something went wrong.

dusty citrus Jan 20, 2020, 6:33 AM

#

?bird

solar ridgeBOT Jan 20, 2020, 6:33 AM

#

Found one!

Tweet Tweet..

dusty citrus Jan 20, 2020, 6:34 AM

#

hahahah

#

?bird

solar ridgeBOT Jan 20, 2020, 6:34 AM

#

Found one!

Tweet Tweet..

dusty citrus Jan 20, 2020, 6:34 AM

#

?bird

#

?bird

solar ridgeBOT Jan 20, 2020, 6:34 AM

#

Found one!

Tweet Tweet..

dusty citrus Jan 20, 2020, 6:34 AM

#

?bird

solar ridgeBOT Jan 20, 2020, 6:34 AM

#

Found one!

Tweet Tweet..

dusty citrus Jan 20, 2020, 6:35 AM

#

?space

solar ridgeBOT Jan 20, 2020, 6:35 AM

#

ISS Info

Location of the ISS now:
36.1789, -177.3755

Humans in Space (6):

**ISS**

Christina Koch
Alexander Skvortsov
Luca Parmitano
Andrew Morgan
Oleg Skripochka
Jessica Meir

dusty citrus Jan 20, 2020, 6:36 AM

#

👍 👍

#

?space

solar ridgeBOT Jan 20, 2020, 6:36 AM

#

ISS Info

Location of the ISS now:
38.6640, -173.7082

Humans in Space (6):

**ISS**

Christina Koch
Alexander Skvortsov
Luca Parmitano
Andrew Morgan
Oleg Skripochka
Jessica Meir

dusty citrus Jan 20, 2020, 6:38 AM

#

?country usa

solar ridgeBOT Jan 20, 2020, 6:38 AM

#

Country Information - usa

United States of America

Population

323,947,000

Capital City

Washington, D.C.

Main currency

United States dollar ($)

Located in

Northern America

Demonym

American

Native Name

United States

Area

9,629,091km (5,983,228m)

dusty citrus Jan 20, 2020, 6:38 AM

#

?github

solar ridgeBOT Jan 20, 2020, 6:38 AM

#

**Command:** ?github

Aliases: ?gh
Description: Get info on a Github repository.
Cooldown: 10 seconds
Usage:
?github [repo name]
?github [owner]/[repo name]
Example:
?github linux
?github torvalds/linux

dusty citrus Jan 20, 2020, 6:39 AM

#

?github adafruit/circuitpython

solar ridgeBOT Jan 20, 2020, 6:39 AM

#

adafruit

Repository

circuitpython

Most Used Language

C

Forks

340

Watchers

1570

Open Issues

257

License

Other

dusty citrus Jan 20, 2020, 6:39 AM

#

blinka cpx adafruit

dusty citrus Jan 20, 2020, 3:46 PM

#

?bird

solar ridgeBOT Jan 20, 2020, 3:46 PM

#

Found one!

Tweet Tweet..

dusty citrus Jan 20, 2020, 3:46 PM

#

?bird

solar ridgeBOT Jan 20, 2020, 3:46 PM

#

Found one!

Tweet Tweet..

dusty citrus Jan 20, 2020, 3:46 PM

#

Deal

dire pecan Jan 20, 2020, 4:31 PM

#

?bird

solar ridgeBOT Jan 20, 2020, 4:31 PM

#

Found one!

Tweet Tweet..

fickle slate Jan 20, 2020, 4:54 PM

#

?bird

solar ridgeBOT Jan 20, 2020, 4:54 PM

#

Found one!

Tweet Tweet..

fickle slate Jan 20, 2020, 4:54 PM

#

?dog

solar ridgeBOT Jan 20, 2020, 4:54 PM

#

Found one!

🐶 Woof!

high galleon Jan 20, 2020, 7:03 PM

#

?platypus

dusty citrus Jan 20, 2020, 7:36 PM

#

?cat

solar ridgeBOT Jan 20, 2020, 7:36 PM

#

Found one!

🐱 Meowww..

dusty citrus Jan 20, 2020, 7:36 PM

#

?bird

solar ridgeBOT Jan 20, 2020, 7:36 PM

#

Found one!

Tweet Tweet..

storm zephyr Jan 20, 2020, 10:39 PM

#

Hi, I have Windows 10 and a Blue snowball microphone, I clicked the "Test microphone" in the sound settings and I can permanently hear myself talk right now, and there's no button to stop it, anyone know how to stop the "test microphone" without disabling it?

grave crest Jan 20, 2020, 11:01 PM

#

@storm zephyr I don't have an answer to your question, but have you tried rebooting? Unplug the mic, reboot, plug the mic back in -- and use a third party program (like Voice Recorder) to "test" the mic.

#

Sometimes funky things happen with code. Such is the nature of the technological beast. Turning it off and back on again is a good place to start taming that beast 🧸

storm zephyr Jan 20, 2020, 11:04 PM

#

Thanks for the reply! , I used the test microphone in the sound settings from Windows 10 and.. I can't turn it off still

#

@grave crest and I tried to reboot it and uninstall my blue snowball driver I can still hear myself speak again just now

grave crest Jan 20, 2020, 11:07 PM

#

Is it possible you have other mics in the system picking you up? I haven't dealt with Windows audio in ages, but I remember a similar issue with a USB webcam built-in mic when I was testing a separate external USB mic.

storm zephyr Jan 20, 2020, 11:08 PM

#

Nope just got this one mic. This is the first time it happened to me 🤔

grave crest Jan 20, 2020, 11:09 PM

#

I'd say send a request to Blue's support team. They might be able to help.....and while waiting for them, scrounge various places on Google.

#

It might be an issue related to Windows, the microphone, or your PC manufacturer.... or any number of driver cross-interactions. So don't limit yourself to just Blue microphone searches.

storm zephyr Jan 20, 2020, 11:15 PM

#

Alright thanks @grave crest I can definitely disable it but still able to hear myself. I did some Google searching and all results point to just turning it off or disabling a microphone

dusty citrus Jan 21, 2020, 1:19 AM

#

?cat

solar ridgeBOT Jan 21, 2020, 1:19 AM

#

Found one!

🐱 Meowww..

misty sierra Jan 21, 2020, 1:34 AM

#

https://media.discordapp.net/attachments/521572378493583361/650856796118056960/qpdance.gif

dusty citrus Jan 21, 2020, 6:33 AM

#

okay... I didn't know Dyno Bot commands would start a trend on the server...

cunning shuttle Jan 22, 2020, 12:58 AM

#

Here’s something off topic... do people still use RSS or is it something that blogging platforms supported so they continue to support it

torpid belfry Jan 22, 2020, 1:00 AM

#

There are still useful use cases for RSS that don't even involve blogging platforms

#

IIRC many podcasting apps still use RSS

cunning shuttle Jan 22, 2020, 1:06 AM

#

Well, the original spec for podcasts is based on an extension of RSS which is itself an extension of xml. I helped my school get started with podcasts before Apple started their iTunes U

#

But I meant more along the lines of: do people still use rss for news/blog aggregation?

finite monolith Jan 22, 2020, 1:33 AM

#

yes. If I can't subscribe to a feed in feedly then I just forget about the source because I never remember to check it

#

also, for signage it's critical to be able to individual "stories" when they're published so you don't keep showing year-old cruft

cunning shuttle Jan 22, 2020, 2:27 AM

#

Interesting, I use feedly too. When I designed new story based systems back in 2007-ish we made sure RSS was available, but wasn’t sure what the mileage would be like in 2020

cunning shuttle Jan 22, 2020, 3:08 AM

#

Well, I guess I have my project for this week

mint trellis Jan 22, 2020, 3:12 PM

#

!ping

boreal flowerBOT Jan 22, 2020, 3:12 PM

#

<a:acheck:587844986868072458> **Pong!**

Ping: 131ms
Latency: 16ms

mint trellis Jan 22, 2020, 3:13 PM

#

!search drawdio

boreal flowerBOT Jan 22, 2020, 3:13 PM

#

loading2 Searching...

#

Showing 1/3 results.

#

Drawdio kit

Price: 17.50
In Stock: in stock
ID: 124
More Results

mint trellis Jan 22, 2020, 3:13 PM

#

!p 774

boreal flowerBOT Jan 22, 2020, 3:13 PM

#

Silicone Caps for Digital Addressable Strips - pack of 4

Price: 1.95
In Stock: 42
ID: 774

mint trellis Jan 22, 2020, 3:14 PM

#

!random

boreal flowerBOT Jan 22, 2020, 3:14 PM

#

loading2 Randomizing...

#

Massive Arcade Button with LED - 100mm White

Price: 9.95
In Stock: in stock
ID: 1187

mint trellis Jan 22, 2020, 3:14 PM

#

https://www.adafruit.com/product/2738

Raspberry Pi Sense HAT

Control the same hardware as used in space...build your very own Astro Pi with the new Raspberry Pi Sense HAT! The Raspberry Pi Sense HAT is attached on top of the Raspberry Pi via the 40 ...

boreal flowerBOT Jan 22, 2020, 3:14 PM

#

Raspberry Pi Sense HAT

Price: 39.95
In Stock: in stock
ID: 2738

fickle slate Jan 22, 2020, 11:29 PM

#

Ehh can we get a #bot channal for bots to prevent spam here?

#

Also its unclear what should be in #general-tech and what should be in #general-chat

proven geode Jan 22, 2020, 11:57 PM

#

I rather like the new @boreal flower !

shrewd hatch Jan 22, 2020, 11:57 PM

#

i vote bot channel

proven geode Jan 22, 2020, 11:57 PM

#

But yeah, a test channel would be convenient. @night crescent

mint trellis Jan 23, 2020, 12:16 AM

#

Oh yea the shop bot is going to star on show and tell today 🙂

#

!random

boreal flowerBOT Jan 23, 2020, 12:18 AM

#

loading2 Randomizing...

#

Out Of Stock: Pomona Female 0.1" Socket to Banana Plug - 24"

Price: 8.50
In Stock: -3
ID: 2666

mint trellis Jan 23, 2020, 12:18 AM

#

!random

boreal flowerBOT Jan 23, 2020, 12:18 AM

#

loading2 Randomizing...

#

Out Of Stock: Hexy - Programmable Hexapod Kit

Price: 249.95
In Stock: 0
ID: 1529

mint trellis Jan 23, 2020, 12:18 AM

#

!search drawdio

boreal flowerBOT Jan 23, 2020, 12:18 AM

#

loading2 Searching...

#

Showing 1/3 results.

#

Drawdio kit

Price: 17.50
In Stock: in stock
ID: 124
More Results

mint trellis Jan 23, 2020, 12:18 AM

#

!random

boreal flowerBOT Jan 23, 2020, 12:18 AM

#

loading2 Randomizing...

#

Tower Light - Red Alert Light with Buzzer - 12VDC

Price: 24.95
In Stock: 10
ID: 2994

mint trellis Jan 23, 2020, 12:18 AM

#

!random

boreal flowerBOT Jan 23, 2020, 12:18 AM

#

loading2 Randomizing...

#

Simple pliers

Price: 3.00
In Stock: in stock
ID: 146

mint trellis Jan 23, 2020, 12:18 AM

#

!random

boreal flowerBOT Jan 23, 2020, 12:18 AM

#

loading2 Randomizing...

#

Out Of Stock: Seeeduino Lite - ATmega32u4

Price: 21.95
In Stock: -3
ID: 3228

mint trellis Jan 23, 2020, 12:20 AM

#

!showtimes

boreal flowerBOT Jan 23, 2020, 12:20 AM

#

3D Hangouts - 11am ET Wednesdays
Show & Tell - 7:30pm ET Wednesdays
Ask an Engineer - 8pm ET Wednesdays
Desk of Ladyada - Random hacker times
John Park's Workshop - 4pm ET Thursdays

dusty citrus Jan 23, 2020, 1:05 AM

#

!help

boreal flowerBOT Jan 23, 2020, 1:05 AM

#

<:adabot:342384086473637891> **Adafruit Commands**

➜ Commands
▸ !deletetag (name) - Delete a tag
▸ !help - Command list
▸ !newtag (name) (tag) - Create a tag
▸ !ping - Response time
▸ !product (id) - Get a product
▸ !random - Get a random product
▸ !search (name) - Search for a product

mint trellis Jan 23, 2020, 1:05 AM

#

https://github.com/adafruit/Adafruit_CircuitPython_PyPortal

GitHub

adafruit/Adafruit_CircuitPython_PyPortal

CircuitPython driver for Adafruit PyPortal. Contribute to adafruit/Adafruit_CircuitPython_PyPortal development by creating an account on GitHub.

boreal flowerBOT Jan 23, 2020, 1:05 AM

#

GitHub: adafruit/Adafruit_CircuitPython_PyPortal

CircuitPython driver for Adafruit PyPortal. Contribute to adafruit/Adafruit_CircuitPython_PyPortal development by creating an account on GitHub.

mint trellis Jan 23, 2020, 1:05 AM

#

hmm

#

!newtag free https://www.adafruit.com/free

Free

Adafruit Industries, Unique & fun DIY electronics and kits : Free - Tools Gift Certificates Arduino Cables Sensors LEDs Books Breakout Boards Power EL Wire/Tape/Panel Components & Parts LCDs & Displays Wearables Prototyping Raspberry Pi Wireless Young Engineers 3D printing Ne...