#general-chat | adafruit | Page 168

static flare May 28, 2021, 3:13 PM

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also not actually sure what I'd add to my wheelchair

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maybe a cup holder

delicate stream May 28, 2021, 3:13 PM

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Plasma cannon

static flare May 28, 2021, 3:13 PM

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only the most practical of additions, i see

honest jolt May 28, 2021, 3:14 PM

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I was gonna go with lasers powered by solar panels but that's a good one

delicate stream May 28, 2021, 3:14 PM

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static flare only the most practical of additions, i see

Indeed

honest jolt May 28, 2021, 3:14 PM

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~~And legal~~

delicate stream May 28, 2021, 3:15 PM

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Anti-grav would be helpful

honest jolt May 28, 2021, 3:15 PM

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Or a big fan like a helicopter

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Could get over steps easy peasy

delicate stream May 28, 2021, 3:15 PM

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Find me a law against plasma cannons on wheelchairs :P

static flare May 28, 2021, 3:15 PM

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I feel like I'm becoming inspector gadget here

honest jolt May 28, 2021, 3:16 PM

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delicate stream Find me a law against plasma cannons on wheelchairs :P

Section 4096 of the US Constitution: Plasma Cannons on wheelchairs are specifically prohibited. 🤪

delicate stream May 28, 2021, 3:19 PM

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honest jolt > Section 4096 of the US Constitution: Plasma Cannons on wheelchairs are specifi...

I feel like you made that up

honest jolt May 28, 2021, 3:19 PM

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Actually Xenia you live in Australia right?
Then US law wouldn't apply 😂

delicate stream May 28, 2021, 3:20 PM

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I don't recall the Constitution having emoji...

honest jolt May 28, 2021, 3:20 PM

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~~They've updated it~~

delicate stream May 28, 2021, 3:20 PM

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https://tenor.com/view/sus-suspect-among-us-gif-18663592

Tenor

burnt tendon May 28, 2021, 3:28 PM

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The Geneva convention does apply to wheelchair weaponry still.

delicate stream May 28, 2021, 3:28 PM

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I don't think the Geneva convention mentions plasma weapons either

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~~plus I think that applies to countries and their militarys, not individuals~~

static flare May 28, 2021, 3:36 PM

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honest jolt Actually Xenia you live in Australia right? Then US law wouldn't apply 😂

yep!

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true Blue Aussie

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and as an Aussie, it's 1:37am

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night

delicate stream May 28, 2021, 3:37 PM

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I have never seen an Australian with blue skin

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Night night

honest jolt May 28, 2021, 3:37 PM

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Good night Xenia! (get some sleep that's too late to be legal)

static flare May 28, 2021, 3:37 PM

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no no, true blue means honest

delicate stream May 28, 2021, 3:38 PM

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I know :P

static flare May 28, 2021, 3:38 PM

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and my sleep is all over the place but yes i shall be sleeping

delicate stream May 28, 2021, 3:38 PM

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Xenia be like:

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https://tenor.com/view/cant-sleep-annoyed-insomnia-attacks-gif-4928497

honest jolt May 28, 2021, 3:38 PM

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😦 won't render

delicate stream May 28, 2021, 3:39 PM

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flips table

honest jolt May 28, 2021, 3:39 PM

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(╯°□°）╯︵ ┻━┻

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/tableflip

delicate stream May 28, 2021, 3:40 PM

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(╯°□°）╯︵ ┻━┻

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Have you ever actually flipped a table?

honest jolt May 28, 2021, 3:46 PM

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How big 😛

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(and not in rage)

delicate stream May 28, 2021, 3:46 PM

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Any size XD

honest jolt May 28, 2021, 3:47 PM

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Well I've had to do it with desks to move it out of our house ig

delicate stream May 28, 2021, 3:47 PM

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lol. I've flipped a few tables in my time

honest jolt May 28, 2021, 3:47 PM

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But I don't think I've flipped a dinner table yet

delicate stream May 28, 2021, 3:47 PM

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I did that once XD

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I had a friend making a silly little movie, and she wanted a big, heavy, solid wood dining table flipped... Well, her actor couldn't budge the thing, so I got underneath, put my feet on the bottom, and when I got my queue, I launched it XD

honest jolt May 28, 2021, 3:52 PM

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Interesting...

delicate stream May 28, 2021, 3:54 PM

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I has power legs

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Every day is leg day

burnt tendon May 28, 2021, 4:24 PM

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There is a Japanese arcade game that is all about flipping tables.

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In San Francisco's Japantown they have one of them. At least they did before the plague hit.

delicate stream May 28, 2021, 4:26 PM

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lol

hasty quarry May 28, 2021, 5:40 PM

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delicate stream May 28, 2021, 5:41 PM

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how-to-disable-cat.mp4

honest jolt May 28, 2021, 6:06 PM

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Looks like you found a bug in the cat AI 🤣

delicate stream May 28, 2021, 6:06 PM

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can we get a bug fix for this?

pearl vigil May 28, 2021, 6:10 PM

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Well known vulnerability, CVE-2002-16053

delicate stream May 28, 2021, 6:10 PM

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lol

sick adder May 28, 2021, 6:26 PM

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There's a comparatively long page on wikipedia called https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_philosophy

List of unsolved problems in philosophy

This is a list of the major unsolved problems in philosophy.

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but there's no page titled https://en.wikipedia.org/wiki/List_of_solved_problems_in_philosophy

delicate stream May 28, 2021, 6:28 PM

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You should fix that

quartz wren May 28, 2021, 6:28 PM

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^

sick adder May 28, 2021, 6:31 PM

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But what are some solved problems of philosophy?

delicate stream May 28, 2021, 6:32 PM

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The ones that aren't unsolved

sick adder May 28, 2021, 6:32 PM

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well done

delicate stream May 28, 2021, 6:32 PM

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Thank you

quartz wren May 28, 2021, 6:35 PM

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we need to create a formal proof system for philosophy like with mathematics

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but with lots more ambiguity

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because philosophy

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😉

sick adder May 28, 2021, 6:37 PM

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oh and here I was imagining that we'd create a system of philosophy like software, in which ideas might change from true to false overnight unless you lock the version number of all your dependencies when you declare them

quartz wren May 28, 2021, 6:38 PM

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RIP

dusty citrus May 28, 2021, 6:53 PM

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Philosophy is like A.I. .. as soon as it's solved it's no longer A.I. ;)

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moving target

delicate stream May 28, 2021, 6:56 PM

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What if AI is actually a super-intelligence pretending to be dumb to lull us into a false sense of security

burnt tendon May 28, 2021, 7:08 PM

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One former coworker had a PhD in philosophy, mostly centering around the study of logic, and no CS degree.

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He coded quite well.

delicate stream May 28, 2021, 7:09 PM

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Coding is just a lot of logic!

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When I started IST classes in college, one of the first classes you took was a philosophy course in logic

stoic mesa May 28, 2021, 7:43 PM

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yeah, in our university we had courses in logic taught at CS department, math department, and philosophy department. All different

delicate stream May 28, 2021, 7:50 PM

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Wait, taught logic differently in each course?

brittle glacier May 28, 2021, 7:55 PM

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just saw your guy's responces. yeah i like the idea of cpu that excutes the doom source. hmm.

delicate stream May 28, 2021, 7:56 PM

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DPU -- Doom Processing Unit

ancient kindle May 28, 2021, 8:11 PM

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DOOM ASIC

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I love it

delicate stream May 28, 2021, 8:14 PM

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Lol

quartz wren May 28, 2021, 9:12 PM

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Sooo... If you're heating up vinegar to use it for a reaction... Protip don't sniff the hot vinegar...

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I smelled it because I was curious if heating it changed the smell but uh... Yeah just makes it more potent

stoic mesa May 28, 2021, 9:13 PM

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@delicate streamwell, philosophers like Aristotle's syllogisms and square of opposition, CS people - boolean functions, and mathematicians - Godel's theorem
Not much overlap

delicate stream May 28, 2021, 9:15 PM

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There's a point of base overlap in logic

delicate stream May 28, 2021, 9:15 PM

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quartz wren I smelled it because I was curious if heating it changed the smell but uh... Yea...

Is vinegar potent to start? I can't smell it

quartz wren May 28, 2021, 9:16 PM

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White vinegar is... Basically just distilled acetic acid mixed down to 5% with water

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Very handy for getting clean acetate salts if you can get things to oxidise

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glares in the general direction of cobalt

delicate stream May 28, 2021, 9:16 PM

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I wish I could smell more things

quartz wren May 28, 2021, 9:17 PM

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I even crushed my cobalt into tiny fragments and did a pre-treatment with peroxide before adding the hot vinegar

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But still no dice

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I am almost tempted to reach for the bleach and take this outside but at that point I may as well just torch the dang things

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But I don't have any sort of mesh that would handle the heat

delicate stream May 28, 2021, 9:22 PM

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Chemistry hard

quartz wren May 28, 2021, 11:38 PM

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Well I found a way

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If I electrolyse the water in the vinegar, it will put pure oxygen out on the anode, where I would have my cobalt sample for reacting anyway

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This then created a cloud of dark purple that quickly dissipates into the water around it... Went to the guy I talk about things that stump me in chemistry and he seems to think I've succeeded in my task

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Apparently one of the hydration states of cobalt acetate is purple and another bright pink, but I think the pink is harder to see in such dilute conditions

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I would link to the video I put up about it but I don't want the YouTube channel name it's under to get me banned from here lol

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I'm using the simplest oxidizer I can: oxygen

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Readily available in water

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Just needs a little coaxing to get out of its electron shell and explore other chemical configurations

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If I can get this to the concentration I need it's going to be a very pretty pink, I'll even post a pic if I can get it to work

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Right now I'm electroplating the cobalt shards with copper so I can solder wires to them to more easily handle things and prevent copper / tin / lead contamination

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And have better electrical contact

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Then I'll mask off the connection to the wire with tape and run the current in reverse to remove the unwanted copper so it doesn't contaminate my cobalt solution

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Not worried about losing a bit of cobalt to prevent contamination but I'll end up bringing all of it to a disposal of toxics with the known and suspected contaminants listed

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(the mixed solution that I'm using to coat the cobalt with and remove the copper)

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Already have a batch of copper acetate I dropped a blob of solder into which quickly caused it to go mucky so it's my general "contaminated copper acetate" mix

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It's at least contaminated with tin and lead

quartz wren May 29, 2021, 12:36 AM

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Et voila a wire soldered to a piece of cobalt

static flare May 29, 2021, 1:03 AM

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My computer is finally set up with my desk!

delicate stream May 29, 2021, 1:06 AM

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My eInk display is blooping every 10 minutes to see if it comes back to life

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Red not good at the moment

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Black better? White good

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Gonna let it refresh red overnight...

zealous ermine May 29, 2021, 1:32 AM

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https://youtube.com/shorts/lgJXrQaGk0A?feature=share

YouTube

Loschen in Motion

Computer reading Button input

▶ Play video

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Homemade computer is now a microcontroller

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Or would it be a macrocontroller?

static flare May 29, 2021, 2:24 AM

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Anyone have a suggestion for a RCA capture card that doesn't crash my PC

late fulcrum May 29, 2021, 2:43 AM

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Elgato makes some nice ones, however one thing that might work is the Techmoan approach of using an upscaler to convert the composite video signal to HDMI and then using an ordinary HDMI digitizer.

static flare May 29, 2021, 3:21 AM

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im... considering that

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genuinely was the first thought when i asked my partners about it

wild temple May 29, 2021, 3:30 AM

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static flare Anyone have a suggestion for a RCA capture card that doesn't crash my PC

if the system you have can output rgb, you might try something like this:
https://github.com/hoglet67/RGBtoHDMI/wiki

GitHub

hoglet67/RGBtoHDMI

Bare-metal Raspberry Pi project that provides pixel-perfect sampling of BBC Micro video and conversion to HDMI - hoglet67/RGBtoHDMI

static flare May 29, 2021, 6:36 AM

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All it outputs is RCA, but I can do audio with that fine, it's just a simple 3.5mm adaptor, but just the yellow video and such

quartz wren May 29, 2021, 7:20 AM

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I'm sure a microcontroller would be fast enough to grab the signal but you'd need to build / find a sync separator and arduino only has 10 bit analog

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Actually I wonder if a Pico could do that... Also no clue how the USB transfer rate would fare

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(we are talking composite signal, yes?)

static flare May 29, 2021, 7:27 AM

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yea

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the thing I have in my computer is terrible and bluescreens my pc

quartz wren May 29, 2021, 7:29 AM

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I kind of want to do some testing to see if I can get an arduino to sample composite...

static flare May 29, 2021, 7:29 AM

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I have a Pi Pico I could realistically use for testing

quartz wren May 29, 2021, 7:29 AM

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I have some too I just haven't got that set up for development yet

static flare May 29, 2021, 7:30 AM

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I have some probes for a BNC frequency meter I need to fix up, and I have a CRT that takes composite through BNC

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the meter needs fixing the probes are fine

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I could also just take a spare composite cable and hack into that but that's messy

quartz wren May 29, 2021, 7:31 AM

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Do you have a 3D printer available to you?

static flare May 29, 2021, 7:31 AM

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I do!

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Right behind me, just set it up yesterday

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Along with my desk and all my equipment

quartz wren May 29, 2021, 7:32 AM

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You may be able to print an adapter housing and fabricate the internal metal bits for going between standards

static flare May 29, 2021, 7:32 AM

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I'm assuming breadboarding is off the table :P

quartz wren May 29, 2021, 7:33 AM

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Not if you make an RCA connector with pins on its output that have the right pitch

static flare May 29, 2021, 7:34 AM

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I'd absolutely have to use the 3 ADC slots on the Pico

quartz wren May 29, 2021, 7:34 AM

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And that should be simple enough to design. Just some cylinders and some boolean subtraction

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Then subtract cuboids from the places for the pins

static flare May 29, 2021, 7:34 AM

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I could always just go with the BNC probes

quartz wren May 29, 2021, 7:34 AM

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Fabricating the metal might be a different story though

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Yeah probably your best choice just arraying the options I see :)

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I have a little mini monocrome CRT from some piece of optometry equipment my dad got for scrap somewhere along the way

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Should pull that out and play with it

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Got a camera tube too but I'm about 90% sure I killed it by dropping it in the floor

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RIP tube

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Well I dropped the camera on the floor while I was trying to get a signal out and never managed to so I disassembled the camera

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CRT works though... A little burn-in but it was free so no complaints

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Even had an NTC C.H.I.P. running with that as the main screen for a while

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Ooh wonderful idea! I should make a soldering station with temperature sensing and control using that CRT with a color gel as the readout

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Probably an amber gel but idk

static flare May 29, 2021, 7:42 AM

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might actually use my QT Py RP2040 instead, it has less pins and I don't have to solder it up

quartz wren May 29, 2021, 7:43 AM

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Good call, same chip right?

static flare May 29, 2021, 7:43 AM

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RP2040

quartz wren May 29, 2021, 7:43 AM

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Yeah I've always found the less you have to do to prove a concept the better

static flare May 29, 2021, 7:44 AM

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I... don't know whether I'll be using PAL or NTSC

quartz wren May 29, 2021, 7:44 AM

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Make it capable of both with a physical or software enabled switch?

static flare May 29, 2021, 7:45 AM

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I could, but I'm not sure which one I'm using for testing

quartz wren May 29, 2021, 7:45 AM

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I see

static flare May 29, 2021, 7:45 AM

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No clue what anything outputs

quartz wren May 29, 2021, 7:45 AM

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What are you testing it with?

static flare May 29, 2021, 7:46 AM

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either my PC (which I can control) or my Classiq N (NES Clone, unsure what it uses)

quartz wren May 29, 2021, 7:46 AM

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Your PC has composite out?

static flare May 29, 2021, 7:46 AM

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nono, i have an HDMI to Comp box

quartz wren May 29, 2021, 7:47 AM

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I see then I would look up the model number of the box and see what the manufacturer says

static flare May 29, 2021, 7:47 AM

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Let's go with what the box is currently set to, cause it has a switch

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NTSC

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huh

quartz wren May 29, 2021, 7:47 AM

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Ah yeah that makes it easier because you can test both

static flare May 29, 2021, 7:47 AM

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in my PAL region?

quartz wren May 29, 2021, 7:48 AM

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Lol

static flare May 29, 2021, 7:48 AM

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I'm Aussie, y'see?

quartz wren May 29, 2021, 7:48 AM

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Ah

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That's one of my places I want to get lost on an adventure... Sad to see so much of the bush burning

static flare May 29, 2021, 7:49 AM

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Huh?

quartz wren May 29, 2021, 7:49 AM

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I saw news a couple years back about places burning in Australia back when there were fires all over

static flare May 29, 2021, 7:50 AM

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I mean, yeah, but most of us are okay, bushfires are just a thing here really

quartz wren May 29, 2021, 7:51 AM

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Fair enough I just meant if I'm going to Australia I want to go camping in the wild because that sounds like a fun time (I'm a bit of a thrill seeker / near miss aficionado)

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One time when I was circumnavigation an island with a friend I had to scramble up a cliff eroding in real time a good distance above a bunch of sharp rocks only to be barely saved by a clump of tree roots when I hit the top and it was just sandstone gravel....

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Good times 9/10 would not do again

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We decided to walk the top of the cliff after that point

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I mean it was going so well... Until it wasn't...

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Protip if the cliff you're climbing across is facing water it probably isn't very stable

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I'm honestly incredibly lucky to be alive with the kind of life I've lived and wholeheartedly do not recommend many of the things I've done if you're looking to stay that way

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I like to spice things up a little and sometimes it gets out of hand but I've survived intact through it all

static flare May 29, 2021, 8:03 AM

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biggest issue i see with all this is what the grounding is going to be like, if I can just hook the ground directly to the microcontroller's ground without frying it

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on a pico, it has a separate analog ground (but i'm unsure if that is actually separate, idk)

quartz wren May 29, 2021, 8:06 AM

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The ground plane for the CRT should be capable of dumping whatever current it generates when operating alone, yes? And the path of least resistance is going to be to that ground plane, not the metal shielding of the cable, right?

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Hmm if it has separate analog ground then I would look into the data sheet for how that's used

static flare May 29, 2021, 8:07 AM

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not sure about the QT Py tho

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might see if someone has themselves done this already

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might save me the hassle

quartz wren May 29, 2021, 8:08 AM

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Good plan

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I'm going to get back to my workshop/lab/research station/bedroom and see what I can make progress on

static flare May 29, 2021, 8:10 AM

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all i can see is video output

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which makes sense, but it's a shame

quartz wren May 29, 2021, 8:13 AM

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let me see what information I can gather since I'm on an actual PC now

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okay so does the board you're using have a separate analog ground pin then? looks like its purpose is for exactly this, a low noise return path for analog sampling

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as per page 23 of this document https://datasheets.raspberrypi.org/rp2040/hardware-design-with-rp2040.pdf

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if the board has a separate analog ground, use it for analog signal sampling

static flare May 29, 2021, 8:20 AM

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the Pico does, but the QT Py RP2040 does not

quartz wren May 29, 2021, 8:21 AM

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are you using any of the digital pins as inputs or outputs? not sure if the MCU itself will cause enough noise in the system to be noticeable but eliminating potential sources of noise where you can is a good start. it will work, it will just possibly have bleedthrough of some of the digital signaling as noise in the video

static flare May 29, 2021, 8:22 AM

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I mean, as a test initially, no, it would just be that

quartz wren May 29, 2021, 8:23 AM

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okay well for a test it shouldn't be too severe that it garbles the sync pulses which is really the only thing you need to get a lock on the signal

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the next problem to solve is how to detect those sync pulses

static flare May 29, 2021, 8:24 AM

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never done composite stuff before so that might be a little tricky

quartz wren May 29, 2021, 8:24 AM

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not sure if you can trigger interrupts when the ADC hits certain values, but that's the only way I can think to do it in software without too much overhead

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otherwise you'll need to get a few amplifiers with enough frequency response, use those to isolate the sync signals, convert them to a signal that the MCU can see as a 1 or 0 (known as sync separation) and then trigger interrupts that way

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or find a sync separation chip dedicated to the task

static flare May 29, 2021, 8:28 AM

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shrugs At that point I might just end up buying something someone else made

quartz wren May 29, 2021, 8:28 AM

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true, I'm considering seeing if I can manage this with parts on hand because I'm a curious individual in both senses of the term

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will have to be after my cobalt experiments though, I Think I'm on to something

delicate stream May 29, 2021, 11:49 AM

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Do the Techmoan thing

delicate stream May 29, 2021, 12:30 PM

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I don't know if this got any better

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... but it also had a memory error with white text on black when I got to it

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Before image for reference

umbral phoenix May 29, 2021, 2:32 PM

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that's solid red? I wonder if there's a connection (or voltage) problem somewhere

delicate stream May 29, 2021, 2:46 PM

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Yup, solid red. Black is also faded, but not as badly

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It can take 3.3v or 5v, currently connected to 3.3v, should I try 5v?

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lemme try 5v...

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5v same thing

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sweufgnbwak I did a dumb and connected GND to 5v instead of GND so it was 3.3v on VIN and 5V on GND... I really hope I didn't fry it... I'll know in 15 seconds

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Ok, refreshing, phew

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So still same thing on 5V for real

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I think it's just damaged

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(in general, not from that little wiring mishap)

quartz wren May 29, 2021, 4:57 PM

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Copper acetate is so pretty

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Do not drink the bright blue kool-aid

zealous ermine May 29, 2021, 5:07 PM

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dont tell me what i can and can't do! it looks too good not to drink!

zealous ermine May 29, 2021, 5:07 PM

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delicate stream I think it's just damaged

that's not good...

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📎 Counter.txt

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also here's the assembly for the counter program

delicate stream May 29, 2021, 5:23 PM

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zealous ermine that's not good...

Nope...

delicate stream May 29, 2021, 5:24 PM

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quartz wren

Are you sure that's not Romulan Ale?

quartz wren May 29, 2021, 5:25 PM

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I'm sure a Romulan could handle drinking it

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But it would not be pleasant

delicate stream May 29, 2021, 5:27 PM

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lol

quartz wren May 29, 2021, 5:40 PM

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@zealous ermine to be honest I literally had to keep it on the other side of the desk from my computer once I started using disposable cups because I kept having the thought to drink it

zealous ermine May 29, 2021, 5:41 PM

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LOL

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Yeah same

delicate stream May 29, 2021, 5:42 PM

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starts a GoFundMe to replace sad eInk display and give it a proper funeral

quartz wren May 29, 2021, 5:43 PM

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I can donate an artistically modeled headstone if you want my blender skills... Wouldn't take more than an hour or two

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(if you've got a way to print)

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Need some practice projects anyway and can't seem to make myself do it if it's for my own purposes

delicate stream May 29, 2021, 5:46 PM

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Lol, I do have 3D printers

quartz wren May 29, 2021, 5:46 PM

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I'll show you an example of my capability of I can find the renders on my phone

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Well, it's reference renders for a printable item so no custom materials don't expect anything fancy as far as visuals because it's meant for printing

delicate stream May 29, 2021, 5:47 PM

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How does one have a funeral for an eInk display? XD

quartz wren May 29, 2021, 5:47 PM

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"we are gathered here today to mourn the early death of a beloved friend" etc.

delicate stream May 29, 2021, 5:48 PM

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display:

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https://tenor.com/view/alive-dead-im-not-dead-yet-gif-13642579

Tenor

quartz wren May 29, 2021, 5:48 PM

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Then it gets a ceremonious return to its packaging and a gentle placement into the scrap bin for recycling or repurposing

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And a memorial headstone on the shelf to remember its existence

delicate stream May 29, 2021, 5:49 PM

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And then EXPLOSION

quartz wren May 29, 2021, 5:49 PM

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Calm down Michael Bay

delicate stream May 29, 2021, 5:50 PM

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But it has to be exciting

quartz wren May 29, 2021, 5:51 PM

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giant robot takes down entire city in a tussle with another giant robot

delicate stream May 29, 2021, 5:52 PM

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I think we can manage to fit that in the budget

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@ everyone plz donate $5 for eInk funeral kthnx

quartz wren May 29, 2021, 5:53 PM

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Umm... Okay? The only important part of that was we're doing real transformers not CGI

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And a real destroyed town

delicate stream May 29, 2021, 5:53 PM

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Eh, ~$68k should cover it

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I know a guy

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wait

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sorry, ~$145k

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https://tenor.com/view/i-got-this-fight-gif-3417616

Tenor

I got this!!

▶ Play video

quartz wren May 29, 2021, 5:57 PM

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I mean... It's not dead though right? Just damaged? What if you make a home for the tech that isn't gone but isn't all there out of cardboard and hot glue... Could be a fun arts and crafts kind of thing

delicate stream May 29, 2021, 5:58 PM

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I wasn't actually gonna destroy or get rid of it, lol... just a joke

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I dunno what to do with it, but it would have to be something where it isn't using the whole display area

#

Or in red

quartz wren May 29, 2021, 5:59 PM

#

You know if you design a case for it you can mask off the non-usable screen space with a 1 or 2 layer sheet of plastic

#

That's what I'm doing on the handheld design I'm working on to cover up the parts of the screen that don't have pixels

delicate stream May 29, 2021, 6:00 PM

#

I mean, I could have the outside area have a pattern or something... I don't mind seeing it faded, but it can't be used for red text on the edges at all. Black is faded

quartz wren May 29, 2021, 6:01 PM

#

Ah actually that could look really cool... A pattern that fades off to the edges

#

I wanna mess around with eink some day

#

Seems like fun

#

But I want to learn how to make one

#

Going to need to build more lab equipment first though

#

Lel

#

At least a sputtering apparatus and a nice diffusion pump, plus I'm going to need to salvage a pump from a fridge / freezer at some point for the primary vacuum stage

#

Because I intend to learn how to make several types of display and all of them are going to need a good vacuum

#

In particular CRTs

delicate stream May 29, 2021, 6:05 PM

#

Here's a regular image, red wire for reference

#

CRTs fun

quartz wren May 29, 2021, 6:05 PM

#

Oh it's really not so bad, can definitely still be used

delicate stream May 29, 2021, 6:06 PM

#

Text in red would be really hard to see XD

quartz wren May 29, 2021, 6:06 PM

#

Yeah but it looks like black is barely affected

delicate stream May 29, 2021, 6:07 PM

#

It should look more like this

quartz wren May 29, 2021, 6:08 PM

#

Hold up signal is spotty trying to get the image to load (on the edge of wifi range)

delicate stream May 29, 2021, 6:08 PM

#

Actually it should look EXACTLY like THIS

quartz wren May 29, 2021, 6:09 PM

#

I think I see your problem. It's mirrored 😛

#

(I kid I kid)

delicate stream May 29, 2021, 6:09 PM

#

:P

quartz wren May 29, 2021, 6:10 PM

#

But yeah the red does not look great

#

Question: is red an inverted state from black or can you overlap them?

delicate stream May 29, 2021, 6:11 PM

#

I think white on black text is best to read, black on white is very faded

#

It can do white, or black, or red, but not both at the same time per "pixel"

#

Actually, there's a video on how they work someone linked, let me find it

quartz wren May 29, 2021, 6:12 PM

#

So why not use red as a drop shadow for text but make the text black or white with the background being the remaining color?

#

Could look cool

#

And it won't matter that it's faded as it's just an accent

delicate stream May 29, 2021, 6:13 PM

#

https://www.youtube.com/watch?v=eipKg2pUQ_8

YouTube

Adafruit Industries

Collin's Lab: Eink, Think Ink - the full series!

http://adafruit.com/thinkink

Eink, E-paper, Think Ink - Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi.

#adafruit #python #arduino

Visit the Adafruit shop online - http://www.adafruit.com

LIVE CHAT IS HERE! http://adafru.it/discord
...

▶ Play video

#

thar we go

#

Hmm... I'd have to see how black on red on white looks

quartz wren May 29, 2021, 6:14 PM

#

And if you want to test that out quick without having to write a bunch of code just print the red text first, one "pixel" down and to the right of the actual text location then print the text

#

May be inefficient for using in your actual code but it'll give you the results you want

#

Or should

#

Idk never messed with eink

#

Also wrt the thumbnail of that video (which I will watch when I'm inside on my hard connection) ❤️ R2R but ❤️ binary weighted resistor ladders even more

delicate stream May 29, 2021, 6:25 PM

#

quartz wren May 29, 2021, 6:26 PM

#

That isn't great but it ain't terrible

delicate stream May 29, 2021, 6:27 PM

#

Yeah, there's enough contrast that it can still be used for SOMETHING, but not like, something I'd want to be able to glance at and have the tri colors -- it takesa tad bit of focus to make out some spots, especially red on white

#

white on black is easiest to see

#

Maybe I'll use it for my cyborg plants

ancient kindle May 29, 2021, 6:31 PM

#

Tbh I’d just use it for black and white

delicate stream May 29, 2021, 6:34 PM

#

Yeah, I think I'll put it on the plants. Info displayed as white on black text, maybe red lines for fun, but not anything that needs to be seen

quartz wren May 29, 2021, 6:38 PM

#

Well all of the black and red have good contrast too, it's just the color in the red is faded and falls off to effectively white. You could still do white/red on black and only use the red in the middle

#

Or a pattern of red and white. Point is it won't affect readability since you only have contrast issues between red and white

#

Idk just my 2 cents on the matter

#

writes up an invoice for $0.02

#

Heh funny story I once invoiced myself for $10

delicate stream May 29, 2021, 6:45 PM

#

why would you invoice yourself XD

quartz wren May 29, 2021, 6:46 PM

#

Someone sent me $10 as a tip for a model I made but it was in the form of a digital prepaid visa that I couldn't use for buying what I wanted and I couldn't get PayPal to accept money from via transfer so I invoiced myself and payed it with the card

delicate stream May 29, 2021, 6:47 PM

#

money weird

quartz wren May 29, 2021, 6:47 PM

#

They took their fees of course but it worked

#

I was pretty proud of myself for coming up with that one lol

#

I had been trying to figure out how to use the money for like 2 weeks when it dawned on me that PayPal has an invoice option (had used it before to invoice a YouTuber for a model I printed for their set)

delicate stream May 29, 2021, 6:51 PM

#

Invoices: Just like real business!

quartz wren May 29, 2021, 6:52 PM

#

The general printing thing I was trying to get going didn't really work out because my life went into a tight spiral soon after and the dreaded virus did not help things

delicate stream May 29, 2021, 6:52 PM

#

shakes fist at plague

quartz wren May 29, 2021, 6:53 PM

#

But hey the print I did gets lots of views on YouTube so I still see it as a win

delicate stream May 29, 2021, 6:54 PM

#

toebeans

#

I think I'm gonna make a NeoPixel table lamp

quartz wren May 29, 2021, 6:57 PM

#

Also I think the guy saying my studio name instead of the print service name really didn't help my brand... But hey my studio name has been heard by lots of people too now... Which means when I come out with an entire season of my cartoon to binge all at once, people may remember the name vaguely from something they once saw in another video

delicate stream May 29, 2021, 6:58 PM

#

branding complicated

quartz wren May 29, 2021, 7:01 PM

#

Indeed

delicate stream May 29, 2021, 7:01 PM

#

My latest order showed up :D

quartz wren May 29, 2021, 7:02 PM

#

Nice! I love it when that happens

delicate stream May 29, 2021, 7:02 PM

#

Hehe, the toebeans keycap comes in a little heart container

quartz wren May 29, 2021, 7:05 PM

#

Also in the trailer for my cartoon, it says "coming... eventually..." or something like that

#

So I'm keeping on brand already there

delicate stream May 29, 2021, 7:15 PM

#

Soon™️

quartz wren May 29, 2021, 7:43 PM

#

I'm actually thinking about asking my dad to borrow his drawing tablet again and get back into it...

delicate stream May 29, 2021, 7:43 PM

#

Drwing fun

quartz wren May 29, 2021, 7:44 PM

#

at least get a good chunk of the drawing / rigging knocked out so when I'm in a mood I don't have to work through all the stuff that feels like effort

#

I really can't do computerz rn not enough coffee and my sleep schedule is wack yo

delicate stream May 29, 2021, 7:44 PM

#

RIP

quartz wren May 29, 2021, 7:45 PM

#

drawing tablet simple

#

then suddenly tech ingredients hitting me out of nowhere with the thermonuclear fusion talk

#

and I have to find the window it's coming from

delicate stream May 29, 2021, 7:46 PM

#

iPad good draw

quartz wren May 29, 2021, 7:46 PM

#

all very confusing

delicate stream May 29, 2021, 7:46 PM

#

iPad Pro anyway

quartz wren May 29, 2021, 7:46 PM

#

I don't have the budget for that so I use whatever I can...often I will do drawings in blender just using my mouse

#

luckily there's a sculpting tool

#

and you can use reference images

delicate stream May 29, 2021, 7:47 PM

#

I only have an iPad Pro because I'd kept my last iPad for like 10 years, so I knew I'd have it a LONG long time, and wanted a bigger screen... plus drawing

#

I use MediBang Pro on PC and the iPad, similar-ish experience between them

#

I actually sold my Cintiq and just draw on the iPad

quartz wren May 29, 2021, 7:50 PM

#

I'll just draw with whatever...found that out when I had a boatload of options presented to me when I did an art class at community college...charcoal? sure, shall I make my own? graphite? sure, what clay content? pastel? don't even get me started...

#

medium does affect my style but I'm very fluid in how I can express my art

#

blender just has a lot of options and is free

#

and works well with a cheap drawing tablet

delicate stream May 29, 2021, 7:52 PM

#

I can't draw on paper, sadly... I can't translate my vision to paper because I can't get it right in the first try or two, and paper ends up shredded or stained with graphite

#

So digital only for me

quartz wren May 29, 2021, 7:54 PM

#

I need to find out where my paper portfolio got backed up to digitally so I can look back at the stuff I did in that class...some of it I was pretty proud of, but sadly the portfolio ended up in my old leaky car and was probably ruined...I'm scared to open it up

#

know what, looking at what happened doesn't change what happened, so I'm gonna brave the pain and do it

#

oh it looks fine

delicate stream May 29, 2021, 7:56 PM

#

yay!

quartz wren May 29, 2021, 7:56 PM

#

a little bent and smudged but I think the smudges were from flailing while I worked

#

#

Pretty proud of this one

#

perspective is a little warped in the picture because the page is bent lol

#

but I assure you the lines on the can are straight, I used a ruler to make sure of it

delicate stream May 29, 2021, 8:00 PM

#

Ah, the difficulties of having a 3D image on a 2D plane on a 3D object... warping!

ancient kindle May 29, 2021, 8:01 PM

#

grrrr

#

warping

quartz wren May 29, 2021, 8:02 PM

#

This one was fun

delicate stream May 29, 2021, 8:02 PM

#

Farfetch'd!

quartz wren May 29, 2021, 8:03 PM

#

What why what how did it think that was the right orientation I had the app showing it taken in the right orientation...

#

grumbles in the general direction of technology

#

We were asked to draw endangered species but we weren't told they had to be real

delicate stream May 29, 2021, 8:06 PM

#

APps dumb

quartz wren May 29, 2021, 8:07 PM

#

My self portrait that I ended up killing a mosquito on so I incorporated it into the drawing (featured on the left)

delicate stream May 29, 2021, 8:07 PM

#

lol

#

nice

quartz wren May 29, 2021, 8:08 PM

#

Hmm I suppose I could've hid my name a bit better

ancient kindle May 29, 2021, 8:08 PM

#

doxed

delicate stream May 29, 2021, 8:08 PM

#

FBI on their way

quartz wren May 29, 2021, 8:08 PM

#

Meh

#

I mean I'm making my self in a cartoon with my actual name (well what I actually go by in person) that's being released publicly so no real point in keeping things super hidden

ancient kindle May 29, 2021, 8:10 PM

#

Only 275,000 people with that name in the US, you’re basically asking to be hunted down

delicate stream May 29, 2021, 8:10 PM

#

yee

ancient kindle May 29, 2021, 8:11 PM

#

So I have an idea for more projects

#

You guys know the nintendo wii extreme modding scene?

#

Like the OMGWTF cut of the PCB

#

Basically, what if we stopped cutting the PCB and started making new pcbs for the wii to live on

#

Bga rework machines are only like $500 now

delicate stream May 29, 2021, 8:13 PM

#

hmmmmmmmmmmmmm

#

It's crazy

#

I love it

ancient kindle May 29, 2021, 8:14 PM

#

Yes

quartz wren May 29, 2021, 8:14 PM

#

so completely remake the mainboard instead of cutting and splicing?

ancient kindle May 29, 2021, 8:15 PM

#

Yes

#

Take off the CPU GPU and NAND and put it on a new board

#

Maybe even transplant the wireless stuff, microsd card slot, native HDMI out

#

And I have an even crazier idea after that

#

https://youtube.com/watch?v=2VOLUOIwbP4

YouTube

Shank Mods

Kill Mii: Portable Wii in an Altoids Tin

I made the worst Wii Portable ever. This is a REAL Wii, not an emulator, in an altoids tin. This project took about a year and was miserable to complete.

Kill Mii Worklog: https://bitbuilt.net/forums/index.php?threads/kill-mii-altoids-tin-portable.1310/

Gman's Youtube Channel: https://www.youtube.com/user/GmanModz

Aurelio's Patreon: https://...

▶ Play video

#

This, but on a monolithic PCB

quartz wren May 29, 2021, 8:17 PM

#

that would be awesome

ancient kindle May 29, 2021, 8:18 PM

#

Might need like a 6-8 layer PCB to do that though, and those are mega expensive

#

Like $300 for 10

delicate stream May 29, 2021, 8:21 PM

#

just do 16 layers and fit it in one of the teeny tiny tins

#

1" screen

#

ezpz

ancient kindle May 29, 2021, 8:21 PM

#

oh

#

What if

#

Stacked PCBs

#

With embedded bypass caps n stuff

#

So instead of 1 8 layer it’s 2 4 layers

delicate stream May 29, 2021, 8:23 PM

#

What if 4 2-layers

#

or 8 1-layer

ancient kindle May 29, 2021, 8:24 PM

#

With the tiny tin I’d be concerned with fitting a cooling solution in there without compromising the structural integrity of the tin

delicate stream May 29, 2021, 8:24 PM

#

hmmm

quartz wren May 29, 2021, 8:24 PM

#

just cool it with liquid nitrogen it'll be fine 😉

delicate stream May 29, 2021, 8:25 PM

#

I see no flaw in this proposal

ancient kindle May 29, 2021, 8:25 PM

#

That’s another point

#

Get a super beefy VRM on a board

#

Extreme wii overclocking

delicate stream May 29, 2021, 8:28 PM

#

12GHz Wii

quartz wren May 29, 2021, 8:28 PM

#

LOL

ancient kindle May 29, 2021, 8:28 PM

#

xOCii

#

Learning how to design PCBs is revealing my inner mad scientist

quartz wren May 29, 2021, 8:30 PM

#

ikr?

ancient kindle May 29, 2021, 8:31 PM

#

I am no longer a consoomer, I am a maker

quartz wren May 29, 2021, 8:31 PM

#

I once spent 3 days straight just reworking my traces by hand over and over to keep everything in 2 layers, looking nice, and to incorporate a few...experimental things, most of which I eventually removed

ancient kindle May 29, 2021, 8:31 PM

#

Classic

delicate stream May 29, 2021, 8:32 PM

#

I've only done design by hand, and always practical over pretty

quartz wren May 29, 2021, 8:33 PM

#

well, the "looking nice" in my case means "taking up as little surface area to traces as possible" by grouping busses where possible, rerouting things to not have excessive over/under dance routines, etc.

#

now, I did do an intentional one of those over/under routines to make a twisted pair of traces

#

I think that's the only experimental thing I left in on that project

delicate stream May 29, 2021, 8:35 PM

#

My boards were all pretty simple...

quartz wren May 29, 2021, 8:36 PM

#

I was designing a VGA / audio breakout board for Teensy 4.1

#

well, VGA, audio, ethernet, USB...effectively a little mini motherboard

#

with a GPIO header, which is where the bus grouping rework came in

delicate stream May 29, 2021, 8:38 PM

#

I did like... LED boards and a few breaks

#

Can't even remember

#

Need nap

#

Bbl

quartz wren May 29, 2021, 8:38 PM

#

glhf

delicate stream May 29, 2021, 8:38 PM

#

https://tenor.com/view/anime-sleeping-sleep-asleep-gif-12048209

Tenor

ancient kindle May 29, 2021, 8:49 PM

#

Mouth breather

quartz wren May 29, 2021, 8:56 PM

#

how to wake up with sandpaper tongue

delicate stream May 29, 2021, 10:48 PM

#

Am cat, always gritty lick

ancient kindle May 29, 2021, 10:54 PM

#

I wonder why no one has tried to embed bypass caps in stacked PCBs

#

iPhones have a stacked PCB but they use both sides

delicate stream May 29, 2021, 11:59 PM

#

https://tenor.com/view/palla-deserto-desert-hot-gif-6014273

Tenor

ancient kindle May 30, 2021, 12:01 AM

#

Indeed

delicate stream May 30, 2021, 12:04 AM

#

I wonder what everyone is doing... I know they're not outside in this rain

ancient kindle May 30, 2021, 12:06 AM

#

Imagine having rain rn

delicate stream May 30, 2021, 12:07 AM

#

Ok, so, I've got NeoPixel MX key breakouts, which are socketed. So the board goes into the breadboard, keyswitch goes into the board, keycap goes on keyswitch. If I hold the board and pull on the cap, where do you think it will separate?

spice moss May 30, 2021, 12:07 AM

#

the airtags have stacked PCB too

delicate stream May 30, 2021, 12:08 AM

#

Taking bets on this XD

spice moss May 30, 2021, 12:09 AM

#

just watch iFixit teardown of it

delicate stream May 30, 2021, 12:09 AM

#

Lol, I don't think they have teardowns of Adafruit stuff... And I have it here in front of me

#

What do you think will happen?

#

Got tired of waiting and tried... not good

#

On one of them anyway

#

One of them the one half of the pins came from the breadboard, then the pins for the switch started bending DX

#

a different one on a different breadboard, the keyswitch just popped out

#

Do you think a phone wire would work for running a NeoPixel ring?

#

Like, POTS phone wire

#

Heck I'mma just try it

ancient kindle May 30, 2021, 12:26 AM

#

spice moss the airtags have stacked PCB too

Apple has gone stacked PCB crazy after the iphone x

delicate stream May 30, 2021, 12:41 AM

#

Can the Pico do capacitive touch without a breakout?

#

Some stuff seems to suggest yes? but other stuff no?

ancient kindle May 30, 2021, 1:13 AM

#

https://forum.micropython.org/viewtopic.php?f=5&t=9829

delicate stream May 30, 2021, 1:16 AM

#

mmmm

#

Will that work with CP?

#

~~also what does PIO stand for~~

ancient kindle May 30, 2021, 1:17 AM

#

programmable io

delicate stream May 30, 2021, 1:17 AM

#

ah

#

To answer my own question about NeoPixel ring with phone wire: yes, perfectly fine

delicate stream May 30, 2021, 1:51 AM

#

Has anyone here done literal bread board development?

burnt tendon May 30, 2021, 1:51 AM

#

Tortillias work better than bread.

delicate stream May 30, 2021, 1:52 AM

#

lol

#

Do you know the history of breadboards?

burnt tendon May 30, 2021, 1:52 AM

#

http://www.seattlerobotics.org/encoder/199804/breadbrd.html

delicate stream May 30, 2021, 1:52 AM

#

XD

late fulcrum May 30, 2021, 1:54 AM

#

I do have a cake pan radio

delicate stream May 30, 2021, 1:54 AM

#

Pics or it didn't happen!

late fulcrum May 30, 2021, 1:55 AM

#

I'd have to go out in the cold in the dark in the rain, so don't hold your breath on that one

#

I did work with an actual bread board too. It had an array of brass screws run into it, with wires soldered to them, connected to various components and sockets.

delicate stream May 30, 2021, 1:56 AM

#

So at least one person here has XD

#

I was just wondering if that was something only the very oldest of makers have done

late fulcrum May 30, 2021, 1:56 AM

#

That, alas, I don't have pictures of, but the memories are still crisp. The (then new) LEDs were fascinating, even if they were pretty feeble.

delicate stream May 30, 2021, 1:56 AM

#

Speaking of breadboards... https://youtu.be/w0c3t0fJhXU the ending is gold

YouTube

Adafruit Industries

Collin's Lab: Breadboards & Perfboards #Adafruit

Learn how to bring a circuit from schematic to reality using a solderless breadboard - then make it permanent by reincarnating your circuit on sturdy perfboard.

Visit the Adafruit shop online - http://www.adafruit.com

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

Join our weekly Show & ...

▶ Play video

late fulcrum May 30, 2021, 1:57 AM

#

We had exactly one 8-input NAND gate to play with so we had to be careful with it. At the time, I didn't realize that it's actually the simplest of the TTL chips, containing a grand total of four transistors in the entire IC.

delicate stream May 30, 2021, 1:57 AM

#

[I know all about breadboards and perfboards, I just really like hearing Collin talk]

#

Technology is magic

late fulcrum May 30, 2021, 2:01 AM

#

Many years afterward (about 4 years ago), I acquired a ceramic packaged 8-input NAND gate, popped the cover off, and took this photomicrograph of it, showing the 4 transistors

delicate stream May 30, 2021, 2:02 AM

#

Ohhh, nice

late fulcrum May 30, 2021, 2:02 AM

#

Wait, that's not my photo

delicate stream May 30, 2021, 2:02 AM

#

oop

late fulcrum May 30, 2021, 2:02 AM

#

That's from https://project5474.org/index.php?title=Main_Page

Index.php

#

Here's my photomicrography rig

delicate stream May 30, 2021, 2:03 AM

#

Sweet. I have a microscope I plan to build a Pi camera into

late fulcrum May 30, 2021, 2:06 AM

#

My Pi camera project is more ... quixotic

#

Thinking of having a conveyor belt bringing Lego bricks under a Pi camera, with the Pi running TensorFlow Lite to identify brick types, and then move solenoid/servo operated gates to direct them into appropriate bins.

#

Basically duplicating Daniel West's Lego sorting project

delicate stream May 30, 2021, 2:20 AM

#

Hehe, Lego sorter sounds fun

#

I want to build a tiny warehouse with robotic automation

late fulcrum May 30, 2021, 2:27 AM

#

Oh that would be cool

delicate stream May 30, 2021, 2:28 AM

#

Actually, let me grab the video that inspired the idea...

late fulcrum May 30, 2021, 2:28 AM

#

Here's an early run of the ML model

delicate stream May 30, 2021, 2:29 AM

#

nice

#

Here's the video that inspired it, fun video, but the guy has a literal tiny warehouse XD https://www.youtube.com/watch?v=-k3mVnRlQLU

YouTube

Numberphile

The man with 1,000 Klein Bottles UNDER his house - Numberphile

More Numberphile on Klein Bottles: http://bit.ly/KleinBottles
More links & stuff in full description below ↓↓↓

Science objects with Brady: http://bit.ly/Objectivity
Thanks Squarespace: http://squarespace.com/numberphile
This video features Cliff Stoll, the man behind ACME Klein Bottles: http://bit.ly/ACME_Klein

Support us on Patreon: http://ww...

▶ Play video

supple surge May 30, 2021, 4:09 AM

#

AdaBot having a night out on the town near the historic El Cajon Blvd sign in San Diego, California ☺️

supple surge May 30, 2021, 4:10 AM

#

supple surge AdaBot having a night out on the town near the historic El Cajon Blvd sign in Sa...

He’s wondering how much voltage is going through that sign!

burnt tendon May 30, 2021, 4:35 AM

#

supple surge He’s wondering how much voltage is going through that sign!

...the answer would shock you.

supple surge May 30, 2021, 4:43 AM

#

burnt tendon ...the answer would shock you.

😆😆 ⚡️

late fulcrum May 30, 2021, 11:59 AM

#

As a neon artist, I like that sign

delicate stream May 30, 2021, 2:04 PM

#

sigh

#

At least I have Collin being hilarious to make things bright again https://youtu.be/Yvp9IfGyrXQ

YouTube

Adafruit Industries

Collin’s Lab: PCB Milling #Adafruit

Learn a new way to create printed circuit boards by way of a milling machine. Join Collin as he uses an Othermill to cut the foundation for a simple capacitive synthesizer.

Othermill: https://www.adafruit.com/product/2323

Visit the Adafruit shop online - http://www.adafruit.com

Subscribe to Adafruit ...

▶ Play video

quartz wren May 30, 2021, 4:43 PM

#

can't wait to get my hands on UE5 and a system capable of running it

delicate stream May 30, 2021, 5:02 PM

#

Hmm... It won't let me upload an image of my thumb covered in super glue

#

Let's try again

#

There we go XD

quartz wren May 30, 2021, 5:13 PM

#

I made...some kind of cobalt salt but it's dark purple and the one I'm looking for is bright pink

#

regardless, it's in solution now so it's easier to deal with

#

oh and if you mix it with sodium bicarbonate it turns brown

#

I wonder what would happen if I run the electrolysis with sodium chloride and cobalt chunks

#

it might give me cobalt chloride

delicate stream May 30, 2021, 5:29 PM

#

I desire to see the purple

ancient kindle May 30, 2021, 5:50 PM

#

Chemistry nerd

static flare May 30, 2021, 6:15 PM

#

I should try and do something Pride themed for June

delicate stream May 30, 2021, 6:21 PM

#

static flare I should try and do something Pride themed for June

R a i n b o w s

sick adder May 30, 2021, 6:25 PM

#

https://www.sparkfun.com/products/18088 hmmm someone should make a 3d printed enclosure for this that looks like a ... hmmm .. a cat?

SparkFun 2D Barcode Scanner Breakout

This tiny "scan engine" will read 20 different barcode symbologies — both 1D and 2D!

#

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

CueCat

The CueCat, styled :CueCat with a leading colon, is a cat-shaped handheld barcode reader that was given away free to Internet users starting in 2000 by the now-defunct Digital Convergence Corporation. The CueCat was named CUE for the unique bar code which the device scanned and CAT as a play on "Keystroke Automation Technology" and it enabled a ...

velvet pelican May 30, 2021, 6:32 PM

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delicate stream *sigh*

Grey nail polish will clean that scratch up. The dent would need a hammer and filler

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Or find another hood

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And paint it

delicate stream May 30, 2021, 6:36 PM

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Lol, I'm just gonna let the shop and insurance deal with it

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The dent is deep, I think it might have torn the metal

static flare May 30, 2021, 6:38 PM

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cue cat lord

delicate stream May 30, 2021, 6:38 PM

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https://tenor.com/view/cat-god-funny-universe-playing-gif-15189573

Tenor

static flare May 30, 2021, 6:39 PM

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delicate stream R a i n b o w s

i mean that's fun but it's also just generic rainbows, but it's a good kicking off point

delicate stream May 30, 2021, 6:39 PM

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Everything is better with rainbows

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I mean look at how assume my computer is

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Rainbows everywhere!

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I'mma do more with custom NeoPixel lighting

umbral phoenix May 30, 2021, 6:52 PM

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sick adder https://en.wikipedia.org/wiki/CueCat

I still have a couple of those o_O

delicate stream May 30, 2021, 7:03 PM

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umbral phoenix I still have a couple of those o_O

Can I have one? :0

ancient kindle May 30, 2021, 7:29 PM

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Anti rgb builds are good

drowsy meteor May 30, 2021, 7:30 PM

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delicate stream I mean look at how assume my computer is

Twin 3090s (not in SLI) - how many monitors are you running?
PS. I'm not jealous at all. 😉

delicate stream May 30, 2021, 7:32 PM

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Currently... Zero XD I use that machine for simulation work and offloaded rendering, and remote into it... At the moment anyway. Still reorganizing/cleaning/building to get my proper office set up where I'll be able to use it directly

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It's literally off on the side on stacked IKEA Lack tables

static flare May 30, 2021, 7:33 PM

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im... insanely jealous

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i only have a 2070

delicate stream May 30, 2021, 7:33 PM

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I shouldn't mention my other system specs >~>

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The 3090 is kinda stupid for gaming. It should be called a Titan

static flare May 30, 2021, 7:34 PM

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That's fair, my 2070 is great for every game I've been playing

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I can have nice looking smooth games

delicate stream May 30, 2021, 7:36 PM

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The 2070 is a great card. My old main machine has a 2070 for the primary card, and what games I do play, it handles perfectly at 1440p 144Hz

static flare May 30, 2021, 7:36 PM

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my 2070 is running 3 monitors, and also occasionally a VR rig

delicate stream May 30, 2021, 7:37 PM

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I'm thinking about getting a 5600, putting the 2070 in that as a gaming system, and using the 7900X/X299 combo as a dedicated VM server

steel river May 30, 2021, 7:38 PM

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I... Think I have a problem.

delicate stream May 30, 2021, 7:38 PM

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I'm up to 6, soon 7 monitors :D

delicate stream May 30, 2021, 7:38 PM

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steel river I... Think I have a problem.

I see no problem here

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Unless Skynet takes over, then you're fragged

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Shower time, bbl

umbral phoenix May 30, 2021, 8:02 PM

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delicate stream Can I have one? :0

there are tons on ebay/etc. I know they're here somewhere, but haven't seen them in awhile. Stuff in chaos due to series of remodels. Hopefully within the year I'll have my new office and lab, and All Teh Things will be organized

quartz wren May 30, 2021, 8:21 PM

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update on cobalt experiments: sodium chloride is a much better electrolyte for electrochemically dissolving cobalt it seems

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and I found a way to coax the cobalt into at least 2 oxidation states...but I'm not sure what they are, just the colors assosciated with them

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umm...not sure what I said wrong there...I was describing colors...

ancient kindle May 30, 2021, 8:22 PM

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lmao

quartz wren May 30, 2021, 8:24 PM

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not even gonna try and re-frame it because I don't know what mine I stepped on ¯_(ツ)_/¯

ancient kindle May 30, 2021, 8:30 PM

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So for the wii thing

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This is gonna be fun to reverse engineer everything

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And to make the kicad objects for the cpu/gpu

quartz wren May 30, 2021, 8:32 PM

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sounds like you're in for a lot of sleepless nights accompanied by the energy drink of your choice...

ancient kindle May 30, 2021, 8:32 PM

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I’ve never had an energy drink and I don’t plan to

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Sleep deprivation is quite a drug

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This is all in the name of defying the laws of nature :D

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Should probably go buy a cheap not working wii to disassemble and probe the PCB

quartz wren May 30, 2021, 8:37 PM

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yay bus mapping!

ancient kindle May 30, 2021, 8:37 PM

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yayy..........

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I shall resist the urge to peek at the leaked schematics

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Keep this legal

quartz wren May 30, 2021, 8:40 PM

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make sure to keep meticulous documentation so that if you end up remaking their schematic exactly as the leaked one is they can't try and sling accusations

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😉

ancient kindle May 30, 2021, 8:42 PM

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Exactly

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Probably keep a detailed blog on this too

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Track the descent in to madness

dusty citrus May 30, 2021, 8:51 PM

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#offtopic doesn't mean what it's interpreted to mean, I think.

ancient kindle May 30, 2021, 9:00 PM

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#general-chat is #general-tech2

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What’s on topic isn’t very well defined lol

dusty citrus May 30, 2021, 9:06 PM

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#hug-reports message

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#show-and-tell message

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The Adafruit Discord is the 24x7x365 hackerspace that you can bring your granddaughter to.
https://learn.adafruit.com/welcome-to-the-community/welcome-to-the-community

ancient kindle May 30, 2021, 10:51 PM

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No promises that she won’t think we’re insane :D

dusty citrus May 30, 2021, 10:56 PM

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hah. Yeah I know.

quartz wren May 30, 2021, 11:00 PM

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I never made any claims I wasn't 😛

honest jolt May 30, 2021, 11:16 PM

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I love window shopping at MicroCenter - I could spend hours there 😂
Sadly, I was limited to one hour but I did come home with a 2.8in touch screen tft which is sure to entertain me for a couple days 🙂

delicate stream May 30, 2021, 11:37 PM

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quartz wren umm...not sure what I said wrong there...I was describing colors...

Bots can be weird... I have, on several occasions, had the Discord bots disallow me from posting pictures of my thumb because they thought it was something NSFW for some reason. Different angle, sends fine...

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Micro Center is best toy store

honest jolt May 30, 2021, 11:44 PM

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Yes

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Very fun

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Another way on emptying my wallet

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XD

delicate stream May 30, 2021, 11:45 PM

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I swear they got back most of the money they paid me when I worked there >~>

honest jolt May 30, 2021, 11:47 PM

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Lol I wish to work at MicroCenter

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Although driving to Boston is so confusing and takes like 30 minutes with good traffic

delicate stream May 30, 2021, 11:58 PM

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Micro Center for me is a 30 minute drive with clear traffic... it was often 45-90 minutes each way

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Paper resistor!

ancient kindle May 31, 2021, 12:26 AM

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curiously strong resistors

delicate stream May 31, 2021, 12:35 AM

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Mixed results

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Touching anything related to it seems to trip it, lol

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even the paper

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Mmmk, so I can make resistors for all my capacitive touch points... but can I use all the pins of the Pico for touch?

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So far GP9-GP13 worked

honest jolt May 31, 2021, 12:47 AM

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Only two ways to find out!

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(Either ask and wait for someone which is boring or try it yourself which is more fun 🙂 )

delicate stream May 31, 2021, 12:49 AM

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I dunno if I wanna test the other couple dozen pins XD

honest jolt May 31, 2021, 12:49 AM

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Hehe not bad imho considering I don't solder very often. You can probably tell the CS pin gave me quite a bit of trouble there - crossing my fingers that the god of solder joints is happy with me today 😂

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Oops sorry for interrupting

ancient kindle May 31, 2021, 12:49 AM

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Need more flux and more heat

honest jolt May 31, 2021, 12:49 AM

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Was gonna try and upload before you said that so it would make more sense but my phone is slow 😦

honest jolt May 31, 2021, 12:49 AM

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delicate stream I dunno if I wanna test the other couple dozen pins XD

Do you need the other pins?

delicate stream May 31, 2021, 12:50 AM

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Oof, that looks rough

honest jolt May 31, 2021, 12:51 AM

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ancient kindle Need more flux and more heat

I'm afraid I don't have flux with me - if it works it works... :/
But the ~~cheap~~ solder I'm using is 2% flux which is probably the only reason why it will work.
And I'm using a cheap iron which doesn't have temp control 😦

delicate stream May 31, 2021, 12:51 AM

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Nope, don't need the pins -- I'm just gonna have a NeoPixel ring, which is GP0, and all this is gonna do is be a lamp. Planning to have touch controls to set color and brightness

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But I don't want to test all the pins for touch DX

honest jolt May 31, 2021, 12:51 AM

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Since I don't solder very much it's not worth the investment :/

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(imho)

honest jolt May 31, 2021, 12:52 AM

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delicate stream But I don't want to test all the pins for touch DX

So you only need 2 or 4 which is plenty ig

delicate stream May 31, 2021, 12:52 AM

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I use this solder... I forget what it is XD lead free

ancient kindle May 31, 2021, 12:53 AM

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Just buy your pound of kester

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It’s going to last you most of your life

delicate stream May 31, 2021, 12:53 AM

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I need more than 2 -- I want to have full color control, so R,G,B channels need a plus and minus each, at least, unless I just do ROYGBIV+W or something and plus/minus brightness

honest jolt May 31, 2021, 12:54 AM

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That's like 8 😦

delicate stream May 31, 2021, 12:54 AM

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I bought a pound of solder like 4 years ago, lol... I took some of it and wrapped it around a air duster nozzle, seen above, and have been using it all this time

ancient kindle May 31, 2021, 12:54 AM

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1mm?

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Looks chunky asf

delicate stream May 31, 2021, 12:54 AM

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uhhhh

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Not sure

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Same diameter as a pin hole

honest jolt May 31, 2021, 12:55 AM

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Before I got a "beginners" soldering kit which came in this convenient holder thingy and when I bought solder by the roll it was too hard for me to hold so I just wrapped a bunch of the stuff around a pencil and slid it off into the holder and it works nice 😂

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Wow that solder is thicc

ancient kindle May 31, 2021, 12:56 AM

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I used one of those pen holders of solder until it was almost gone

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Then I got my pound

honest jolt May 31, 2021, 12:56 AM

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delicate stream I need more than 2 -- I want to have full color control, so R,G,B channels need ...

You could do HSV but only control H and either S or V...

ancient kindle May 31, 2021, 12:57 AM

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Been liking 0.7mm, nice balance between chonky and being small enough for SMD work

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And a pound of 0.5 would likely outlast me

honest jolt May 31, 2021, 12:57 AM

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Mines 0.6mm and 0.22 pounds

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Probably gonna have it for decades at this rate XD

delicate stream May 31, 2021, 1:00 AM

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I'mma just... test all the pins....

honest jolt May 31, 2021, 1:00 AM

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Oh goody I just remembered to solder some jumpers and I just put everything away *sigh*

honest jolt May 31, 2021, 1:00 AM

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delicate stream I'mma just... test all the pins....

Good luck!

quartz wren May 31, 2021, 1:02 AM

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honest jolt Hehe not bad imho considering I don't solder very often. You can probably tell t...

heeeeey I have the same screen sitting on my desk, haven't quite got around to playing with it yet

honest jolt May 31, 2021, 1:03 AM

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Touchscreen TFTs are fun

quartz wren May 31, 2021, 1:03 AM

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I want to build an enclosure first because I have planssssss

honest jolt May 31, 2021, 1:03 AM

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oooooooo

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interesting

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I'm pairing mine with an ESP32 so I can do lots of fun stuff 🙂

quartz wren May 31, 2021, 1:04 AM

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I'm doing a handheld game console with 3 Picos

honest jolt May 31, 2021, 1:04 AM

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😮 wow why do you need 3???

quartz wren May 31, 2021, 1:04 AM

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one to rasterise triangles and drive the screen, one to do 3D calculations, and one to emulate a custom pure virtual CPU architecture for the games

delicate stream May 31, 2021, 1:04 AM

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I have 11 Pico

honest jolt May 31, 2021, 1:05 AM

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quartz wren one to rasterise triangles and drive the screen, one to do 3D calculations, and ...

Wow cool
Sounds so complicated 😎
"I used 2 picos to act as a GPU and another to emulate a virtual CPU"

delicate stream May 31, 2021, 1:06 AM

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I'm just making a dumb lamp XD

quartz wren May 31, 2021, 1:07 AM

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it's a bit overpowered, but the goal is to develop a communication protocol between the systems that disregards whether it's running on the same physical device...in theory you'd be able to do it all on a single pico but it might have some issues so I'm starting with plenty of juice

wary herald May 31, 2021, 1:07 AM

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This really belongs here #general-chat 🙂

Do any of you have Dogecoin??

honest jolt May 31, 2021, 1:07 AM

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I have Monero

delicate stream May 31, 2021, 1:08 AM

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I have some laughable amount of Dogecoin I bought like 5 years ago

honest jolt May 31, 2021, 1:08 AM

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Like, 0.0025 which is like 1 USD 😂

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BUT most of it came from a Pi 3 and 4 mining so I'm proud of them

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(obviously I'm not trying to make a profit 😂 if you can tell)

quartz wren May 31, 2021, 1:09 AM

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I have a few hundred I was trading back and forth with USDT when it was really volatile a couple weeks ago

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managed to nearly double what I started with

wary herald May 31, 2021, 1:09 AM

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honest jolt BUT most of it came from a Pi 3 and 4 mining so I'm proud of them

What did you use to mine? WOW

delicate stream May 31, 2021, 1:09 AM

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I have a few hundred USD in BTC

wary herald May 31, 2021, 1:09 AM

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honest jolt (obviously I'm not trying to make a profit 😂 if you can tell)

haha

wary herald May 31, 2021, 1:10 AM

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delicate stream I have a few hundred USD in BTC

Which do you think is better?

honest jolt May 31, 2021, 1:10 AM

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wary herald What did you use to mine? *WOW*

Well...don't tell the RPis but I did help give them a head start with my i7 for a couple days

wary herald May 31, 2021, 1:10 AM

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quartz wren managed to nearly double what I started with

That's good 🙂

wary herald May 31, 2021, 1:11 AM

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honest jolt Well...don't tell the RPis but I did help give them a head start with my i7 for ...

I won't 😉

delicate stream May 31, 2021, 1:11 AM

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Ehh... it's all super unstable, BTC is getting to a point where mining profitability is almost dead, so it might start to stabilize? It's all danger and I don't recommend putting in any money you aren't willing to lose

honest jolt May 31, 2021, 1:13 AM

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But if China bans crypto mining then the network power will probably drop like 70% for a couple weeks

wary herald May 31, 2021, 1:13 AM

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delicate stream Ehh... it's all super unstable, BTC is getting to a point where mining profitabi...

Yeah, I just won a little and I'm trying to do something fun crypto-wise with it 🪙 ⛏️

delicate stream May 31, 2021, 1:13 AM

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Crypto is pretty danger

wary herald May 31, 2021, 1:13 AM

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honest jolt But if China bans crypto mining then the network power will probably drop like 7...

Oof

delicate stream May 31, 2021, 1:13 AM

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Nicehash will mine things and send you BTC, so if you do want to mine, that's pretty easy...

honest jolt May 31, 2021, 1:13 AM

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Just don't invest your life savings into it and you'll be fine

wary herald May 31, 2021, 1:14 AM

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delicate stream Nicehash will mine things and send you BTC, so if you do want to mine, that's pr...

OK, I'll look at that

wary herald May 31, 2021, 1:14 AM

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honest jolt Just don't invest your life savings into it and you'll be fine

Good idea

honest jolt May 31, 2021, 1:14 AM

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It's like the stock market at 1000000% speed

wary herald May 31, 2021, 1:14 AM

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honest jolt It's like the stock market at 1000000% speed

Ouch

quartz wren May 31, 2021, 1:14 AM

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just noticed my screen didn't come with enough pins to populate the whole header lol...gonna have to improvise

honest jolt May 31, 2021, 1:15 AM

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Lol I have extra let me beam some though Discord 😂

quartz wren May 31, 2021, 1:16 AM

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I'm sure I have another strip of them somewhere in one of the half baked projects I have laying around

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I'll just let the lack of them in that project be handled by future me

wary herald May 31, 2021, 1:16 AM

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delicate stream Nicehash will mine things and send you BTC, so if you do want to mine, that's pr...

It says I'll earn $24 a year LOL

delicate stream May 31, 2021, 1:18 AM

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I mine to pay the electric bill with one card and make $10 a day, lol

wary herald May 31, 2021, 1:19 AM

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delicate stream I mine to pay the electric bill with one card and make $10 a day, lol

That's better than me 🙂

honest jolt May 31, 2021, 1:21 AM

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delicate stream I mine to pay the electric bill with one card and make $10 a day, lol

With my Pis I make ||-0.10 USD a day 😂 (according to calculator - my pool luck has been terrible recently - how am I gonna buy another Pi to mine at this rate??? 🤣)||

delicate stream May 31, 2021, 1:21 AM

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It takes like 6 months to get value back on the card tho >~>

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If you're making negative money, you should just buy the coin, lol

honest jolt May 31, 2021, 1:22 AM

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Naw all I need is the value of Monero to skyrocket then I'll be making a (tiny) profit 😂

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And plus this is what I call investing 🤣

delicate stream May 31, 2021, 1:22 AM

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YOU

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You're not making profit if it costs more to mine than you get in coin XD just buying coin would be investing

wary herald May 31, 2021, 1:23 AM

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honest jolt With my Pis I make ||-0.10 USD a day 😂 (according to calculator - my pool luck ...

Ha 🙂

honest jolt May 31, 2021, 1:23 AM

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I also have nothing to do with the Pis and they consume next to no electricity compared to the big desktop sitting 2 feet above them so why not

wary herald May 31, 2021, 1:23 AM

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honest jolt And plus this is what I call _investing_ 🤣

🤣

delicate stream May 31, 2021, 1:24 AM

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Still unprofitable XD

honest jolt May 31, 2021, 1:25 AM

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But it's fun watching your Pis mine 😂
If anyone is wondering the Pi 4 gets about ||95 h/s|| and the Pi 3 gets about ||20 h/s|| lol

wary herald May 31, 2021, 1:25 AM

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delicate stream Still unprofitable XD

XD

delicate stream May 31, 2021, 1:25 AM

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Gotta get them on solar!

wary herald May 31, 2021, 1:25 AM

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honest jolt But it's fun watching your Pis mine 😂 If anyone is wondering the Pi 4 gets abo...

Buy another Pi 4 🙂

Sell the Pi 3 🙂

honest jolt May 31, 2021, 1:26 AM

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delicate stream Still unprofitable XD

If my electricity costs stay the same then I only lose 3 bucks a year (make 7 lose 10)

honest jolt May 31, 2021, 1:26 AM

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wary herald Buy another Pi 4 🙂 Sell the Pi 3 🙂

Who would buy a used Pi 3 😂 and I would probably have to charge like $25 for it and that's only half the cost of the Pi 4 4GB

wary herald May 31, 2021, 1:26 AM

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Oh, well. It might skyrocket 🙂

delicate stream May 31, 2021, 1:28 AM

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You would lose $0 a year if you just bought coin instead of mining XD

honest jolt May 31, 2021, 1:29 AM

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Too lazy to buy coin from someone XD

delicate stream May 31, 2021, 1:29 AM

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lol, it's literally less work

wary herald May 31, 2021, 1:29 AM

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delicate stream You would lose $0 a year if you just bought coin instead of mining XD

LOL

wary herald May 31, 2021, 1:31 AM

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delicate stream lol, it's literally less work

But, it's no fun

honest jolt May 31, 2021, 1:31 AM

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delicate stream lol, it's literally less work

Well it's not much after you get the hang of it

Burn Raspberry Pi OS
Set up SSH and get in
Configure with raspi-config and reboot
Install a gazillion packages and eat your dinner
Clone repo and build - only takes 10 min
Copy the systemctl file from the other Pi
Reboot to test 🙂
Clone SD card to computer so if your card bricks you can buy a new one and just clone contents to it - takes about 2 hours for 32GB card

wary herald May 31, 2021, 1:32 AM

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honest jolt Well it's not much after you get the hang of it 1. Burn Raspberry Pi OS 2. Set u...

Now that's smart 🙂 LOL

honest jolt May 31, 2021, 1:33 AM

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I did find this guide on the internet on how to build xmrig on the Pi which was helpful: https://www.publish0x.com/cryptoandpi/how-to-mine-monero-on-your-raspberry-pi-4-xzwqlld
And StackExchange helped for the systemctl file so I didn't do much work 😂

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(All I lose were a couple of brain cells to why is it not connecting to the stupid pool??? and why is the systemctl file not working??? and probably 10 hours of my life which I'll never earn back 🤣)

wary herald May 31, 2021, 1:36 AM

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honest jolt (All I lose were a couple of brain cells to _why is it not connecting to the stu...

🤣 🤣

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You literally made me giggle

ancient kindle May 31, 2021, 1:37 AM

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classic linux problems

honest jolt May 31, 2021, 1:37 AM

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Naw it was more of me being brainless 😂

ancient kindle May 31, 2021, 1:37 AM

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but think on the bright side, next time it will only take 9 hours!

honest jolt May 31, 2021, 1:37 AM

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HAHA

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Actually the second time it only took 3 hours! 🥳

ancient kindle May 31, 2021, 1:38 AM

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see!! you're learning!

honest jolt May 31, 2021, 1:38 AM

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||But the first time took several days 🤣||

ancient kindle May 31, 2021, 1:38 AM

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you're really learning lmao

wary herald May 31, 2021, 1:38 AM

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honest jolt ||But the first time took several days 🤣||

Ouch 🪙

delicate stream May 31, 2021, 1:38 AM

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honest jolt (All I lose were a couple of brain cells to _why is it not connecting to the stu...

As I said... much more work than just buying coin XD

honest jolt May 31, 2021, 1:39 AM

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Nooooooooooooo

wary herald May 31, 2021, 1:39 AM

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delicate stream As I said... much more work than just buying coin XD

||BUT STILL NO MORE FUN||

honest jolt May 31, 2021, 1:39 AM

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I also tested my patience and my mental swearing

delicate stream May 31, 2021, 1:39 AM

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You could have had more fun doing something else, like creating an AI to take over the world :P

wary herald May 31, 2021, 1:39 AM

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honest jolt I also tested my patience and my mental swearing

🙂

honest jolt May 31, 2021, 1:40 AM

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delicate stream You could have had more fun doing something else, like creating an AI to take ov...

But setting up a Raspberry Pi is fun!
right?

wary herald May 31, 2021, 1:40 AM

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delicate stream You could have had more fun doing something else, like creating an AI to take ov...

I already made 2 chatbots and a answer engine.....

delicate stream May 31, 2021, 1:40 AM

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I'm working on a companion robot :D

honest jolt May 31, 2021, 1:40 AM

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And when I'm waiting for the packages to install, I can procrastinate and watch YouTube 😂

wary herald May 31, 2021, 1:41 AM

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delicate stream I'm working on a companion robot :D

I'm working on EDITH glasses

delicate stream May 31, 2021, 1:41 AM

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Super glasses are also a thing I'm working on

wary herald May 31, 2021, 1:41 AM

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Legends never die

delicate stream May 31, 2021, 1:42 AM

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I have a.... voice... "assistant"... she's not helpful yet >~>

wary herald May 31, 2021, 1:42 AM

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See my profile pic 🙂

honest jolt May 31, 2021, 1:42 AM

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delicate stream I have a.... voice... "assistant"... she's not helpful yet >~>

HAHA

wary herald May 31, 2021, 1:42 AM

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delicate stream I have a.... voice... "assistant"... she's not helpful yet >~>

Ha HA

delicate stream May 31, 2021, 1:42 AM

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I was gonna call her F.R.I.D.A.Y., but she doesn't have a cute Irish voice, and she curses at me a lot

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And also I wouldn't trust her with a toaster

ancient kindle May 31, 2021, 1:42 AM

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I have a voice in my head does that count

honest jolt May 31, 2021, 1:43 AM

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Close enough 😂

delicate stream May 31, 2021, 1:43 AM

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I seriously can't repeat half the things she says at me here

honest jolt May 31, 2021, 1:43 AM

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delicate stream I seriously can't repeat half the things she says at me here

What are you teaching her??? 😂

delicate stream May 31, 2021, 1:44 AM

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I fed her about 20TB of various documents and feeds from the last 2 decades

honest jolt May 31, 2021, 1:44 AM

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Interesting...

delicate stream May 31, 2021, 1:44 AM

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I haven't figured out what the poison apple is that spoiled the bunch

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Honestly I can't even remember where I got the dataset >~>

wary herald May 31, 2021, 1:44 AM

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delicate stream I haven't figured out what the poison apple is that spoiled the bunch

ooch

honest jolt May 31, 2021, 1:45 AM

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PROGRESS! 🥳

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And nothing it on sparky yet so that must be good!

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(in reality the room I'm in is bright but stupid camera auto white balance won't do me any favors)

wary herald May 31, 2021, 1:45 AM

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honest jolt And nothing it on <:sparky:342384086482026496>yet so that must be good!

My whole house smelled like sparky today

delicate stream May 31, 2021, 1:45 AM

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Glowy

honest jolt May 31, 2021, 1:45 AM

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😦 why???

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Also thank God for whoever made Discord be able to be accessed on phone and computer at same time

wary herald May 31, 2021, 1:47 AM

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honest jolt 😦 why???

I seriously don't know 😕

honest jolt May 31, 2021, 1:48 AM

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wary herald I seriously don't know 😕

Be careful!

wary herald May 31, 2021, 1:48 AM

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honest jolt Be careful!

I found nothing..... but it doesn't smell anymore

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I deduced it was the light bulb that died today. RIP

honest jolt May 31, 2021, 1:49 AM

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oof

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Also is slave select the same as chip select?

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And is clock the same as "SCK"?

wary herald May 31, 2021, 2:08 AM

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delicate stream I mine to pay the electric bill with one card and make $10 a day, lol

Do you have any experience with MinerGate??

delicate stream May 31, 2021, 2:09 AM

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nope

ancient kindle May 31, 2021, 2:09 AM

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I mined on there for a bit

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bailed cause antivirus kept picking it up as malware lmao

delicate stream May 31, 2021, 2:09 AM

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oof

honest jolt May 31, 2021, 2:16 AM

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I mined on Minergate for a while but was pretty annoyed at how slow it was and only a quarter of the time showing my Pi 4 was mining but I switched mining software and switched to a smaller pool since it was small, I would be paid 0.0001 XMR every time the pool found a block instead of 0.00000001 every hour on Minergate 😂

honest jolt May 31, 2021, 2:40 AM

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SUCCESS!

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For a sec I was wondering why it was so slow - it was slower than an Uno
Then I realized I was using software SPI and when I switch to hardware SPI the test finished within seconds 😂

delicate stream May 31, 2021, 2:53 AM

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lol

quartz wren May 31, 2021, 3:10 AM

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okay seeing this makes me want to play around with my screen

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wait a sec, I only need the pins on one side of this thing, huh?

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and then a few pins on the other side for SD

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(using 8-bit data mode to make things as fast as possible because I intend to do 3D rendering)

honest jolt May 31, 2021, 3:32 AM

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if you want to use the sd card then you will have to use spi mode btw

quartz wren May 31, 2021, 8:06 AM

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oh that's silly...can I make it dynamically switch to SPI, snag some data from the SD card slot, and then reset the screen into 8-bit mode?

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I'm sure I can find a way to bypass the screen's SPI and make it just use that for the SD card

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😉

dusty citrus May 31, 2021, 11:25 AM

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Chip Select (CS) is a GPIO pin unique to each device on the SPI bus.

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I think it gets toggled often but I don't quite remember when I wrote a bit-bang for that.

dusty citrus May 31, 2021, 11:43 AM

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Porting notes here:
https://github.com/wa1tnr/CircuitPython_ST7565/blob/master/doc/an_approach_ST7565_cyp.txt

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(CircuitPython SPI to ST7565 LCD)

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For:
http://adafru.it/250 graphic LCD

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(That's not the bitbang one - not sure what I remember here - probably a shift register)

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I just don't remember and can't find it. ;)

static flare May 31, 2021, 12:14 PM

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This feels like a silly question but I hear people say bitbang a lot and I don't actually know what that means...

dusty citrus May 31, 2021, 12:17 PM

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It just means that instead of using real hardware you emulate it with GPIO pin writes 1 and 0 in a pattern and following a protocol.

delicate stream May 31, 2021, 12:17 PM

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Apparently just doing software versions of things that have dedicated hardware versions?

dusty citrus May 31, 2021, 12:18 PM

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You may not have (or know how to use) a USART in hardware, for example.

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Writing serial TTL signals is almost trivial - you can write them by bit-banging GPIO and the receiving terminal will print them out, just like a real USART signal would generate them.

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(Looks similar on an oscilloscope).

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It's a way to get information out of a microcontroller program written in assembler, in English (or any other ASCII-based communication).

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istr sending a 5 in ASCII / TTL serial was an alternating pattern on the scope:

https://github.com/wa1tnr/bitbanged-serial-a/blob/main/main.c#L613

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Something about 0xA5 vs 0x5A too. ;)

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Basically I'd use CP2104 and read a keyboard, look at the characters on an oscilloscope, and imitate them on the return path (sending from the 'blind' assembler MCU program inside the microcontroller I was trying to bring up, from scratch).

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Slowly building a vocabulary of TTL serial charcters to send out to the real world via quasi-TTL-serial methods.

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listening for those same signals and decoding them would be harder.

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A lot of write-only stuff is easier than reading (at all).

static flare May 31, 2021, 12:42 PM

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Oh! So like, using any GPIO pins for like, SPI instead of a dedicated SPI bus (on the topic of SPI, I have no clue how to get it working and it honestly annoys me)

dusty citrus May 31, 2021, 12:56 PM

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Microcontrollers have what you might term internal peripherals that aren't in the core (at all).

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More of those would be externally realized, in separate chips, the further back in time you go.

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The (internal or external) USART is good at decoding signals in a specific format (and, of course transmitting signals using the very same protocol).

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Most older IBM-PC type computers had two USART devices inside (on the motherboard).

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0x3f8 0x2f8 0x3e8 0x2e8 were related .. numbers. I've forgotten what those were.

polar bloom May 31, 2021, 12:59 PM

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Mouse, keyboard, RS-232?

dusty citrus May 31, 2021, 12:59 PM

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Probably COM1 thru COM4

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Standard MODEM connections via DB-9 or DB-25 used those numbers.

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hit on wikipedia:
https://en.wikipedia.org/wiki/COM_(hardware_interface)

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Yeah 16550 was that UART part number.

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0x3f8 is what they call an I/O Address.

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I don't know enough about that.

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I think the IRQ was assignable on later units.

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Floppy, HDD, Serial, Parallel, Video was the usual order for expansion cards (working from the power supply to the edge of the bus - the furthest slot was for video).

delicate stream May 31, 2021, 1:03 PM

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I wonder how many virtual COM ports you can have...

dusty citrus May 31, 2021, 1:03 PM

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at least my boss believe that superstition was valid. ;)

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COM9 seems reported often, today, for Arduino CDC/ACM stuff.

polar bloom May 31, 2021, 1:04 PM

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Apparently on the Commodore 64, the design included a number of high speed serial lines that would have given this machine the fastest floppy access by far of any home computer at the time. But during manufacturing of the PCBs, someone decided to cut those lines off the board because "they did not appear to have any function at all". They produced about 100,000 of these machines before the engineers realized what had happened, and as a result the C64 actually ended up having the slowest serial bus of any computer at the time.

static flare May 31, 2021, 1:04 PM

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Would be a DE-9, not DB-9, as the D-sub series uses the letters to denote shell size, and the smaller one is an E shell (like VGA, using a DE-15 connector)

delicate stream May 31, 2021, 1:04 PM

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I remember playing with IRQ settings

dusty citrus May 31, 2021, 1:04 PM

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;)

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I'm sticking with DB-9 as it's in the period literature.

polar bloom May 31, 2021, 1:05 PM

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It's also what every seller of these connectors calls them. 😉

delicate stream May 31, 2021, 1:06 PM

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I follow the labels XD

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But interesting to know

dusty citrus May 31, 2021, 1:07 PM

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There were all kinds of hobby projects that manipulated the parallel (printer) port to control hobby stuff off those pins.

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That port terminated in a Centronics Parallel connector on the far end the cable. The PC end had a stock DB-25 (male) connector.

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AppleSerial was a balanced differential protocol.

static flare May 31, 2021, 1:08 PM

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That's fair, it's unsurprising how the mistake came about, originally they used a DB-25, then cut down the number of pins by removing barely used signals, which left them with the DE-9, but basically every company doing stuff with a DE-9 port I guess thought "It's DB, followed by the number of pins" instead of "it's a D-sub connector, in the B size, with 25 pins"

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Been told I can be a bit of a pedant at times

dusty citrus May 31, 2021, 1:09 PM

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No that's great to know.

delicate stream May 31, 2021, 1:09 PM

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I almost did parallel to allow a PC to control things, but I ended up using Arduino and faked USB

dusty citrus May 31, 2021, 1:09 PM

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Might win a bar bet with that one, some day /techie_hangouts

polar bloom May 31, 2021, 1:09 PM

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I've used the parallel port for this purpose too.

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On older computers you usually had some kind of port that was designed to let you control stuff.

delicate stream May 31, 2021, 1:10 PM

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If I ever have more room, I want to have a vintage computing room where things are automated and stuff, but all period-appropriate to the 80s and 90s

dusty citrus May 31, 2021, 1:10 PM

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My first DB-25 was from RatShack to connect a 300 bps modem I bought from them. Was a true ribbon cable and a nice blue plastic shell for the 25-pin connectors.

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(both ends DB-25 male)

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I had to buy a dialer as it wasn't a Hayes type of autodialing MODEM ;)

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You had to throw a 3-position switch: ANSWER/OFF/ORIGINATE to make a connection. ;)

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So for inbound you'd listen and count to maybe two mississippi and then throw it into ANSWER mode.

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(slamming the receiver down at the same time to cut out your room audio ;)

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I'm probably making this up - I don't remember very well

delicate stream May 31, 2021, 1:13 PM

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lol

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Do y'all use wire strippers all the time?

polar bloom May 31, 2021, 1:16 PM

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Only when stripping wires...

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Sometimes I use a knife though.

dusty citrus May 31, 2021, 1:18 PM

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I use those good haako ones I got at afruit shop

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(the ones that are good for wire wrap gauge - smooth as butter)

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I also own two pair of Klein Tools strippers (multiple die versions) in two ranges (mostly overlapping)

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Those are okay to pretty good.

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The 'adjust with a flat blade screwdriver' one-setting ones aren't all that great.

delicate stream May 31, 2021, 1:21 PM

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I usually use a knife or my fingernails, depending on the wire... I should get a good pair of strippers XD I currently only have the aforementioned "adjust a screw" ones, which I just leave the screw where it lets you close totally and manually control the closing

dusty citrus May 31, 2021, 1:25 PM

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I used to use the one-screw one for a few decades. ;)

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I would just turn it out of plane from perpendicular to strip smaller gauge wires.

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For the modern (formed die) type of strippers, I usually take two bites - one to impress and the second to strip the insulation.

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(rotated near 90 degrees)

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That generally breaks the gap between the die halves.

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For teflon coated wires (aircraft) thermal strippers are used (or were quite a few years ago).

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They look like two old school Weller solder guns back to back (four ___ not two ___).

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Can't remember that word.

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(like chemistry, batteries, electroplating)

dusty citrus May 31, 2021, 1:50 PM

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I just heard a military jet overhead. ;)

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Memorial Day

static flare May 31, 2021, 1:53 PM

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dusty citrus I use those good haako ones I got at afruit shop

one time i did that I injured myself

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what

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i meant the knife one

static flare May 31, 2021, 1:53 PM

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polar bloom Sometimes I use a knife though.

this one

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i also sent mains (240V) through my body with that same project

dusty citrus May 31, 2021, 1:54 PM

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I worked with kilovolt radar power supplies and never once got bit - to be fair I think I held that probe less than five times in total. ;)

polar bloom May 31, 2021, 1:58 PM

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With the knife, you put the wire on the table and slowly roll your knife over it, while turning over the wire. I wouldn't do it while holding it in my hands. (Also, no nails or teeth.)

dusty citrus May 31, 2021, 1:59 PM

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Oh yeah I remember doing that one. I used a razor knife (X-acto type) iirc.

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I alway supposed that pulling on the insulation a little harder (stretching the wire) was 'better' than nicking the conductor with a sharp blade.

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So I would undercut just slightly.

delicate stream May 31, 2021, 2:00 PM

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Do any countries use not 220/240VAC mains?

dusty citrus May 31, 2021, 2:00 PM

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USA uses 120 VAC

polar bloom May 31, 2021, 2:01 PM

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Lots of other places too

delicate stream May 31, 2021, 2:01 PM

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US is 240VAC mains

dusty citrus May 31, 2021, 2:01 PM

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(pick a number - 117 VAC was commonly printed on equipment)

delicate stream May 31, 2021, 2:01 PM

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It's split-phase in the US, 240VAC mains, split into 2 phases of 120VAC each

dusty citrus May 31, 2021, 2:01 PM

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We don't call it 240 because that's only used for special appliances.

delicate stream May 31, 2021, 2:01 PM

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But the mains are still 240 XD

dusty citrus May 31, 2021, 2:01 PM

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But yeah few homes have only 110 available.

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I think Argentina uses near 440 VAC. ;)

delicate stream May 31, 2021, 2:02 PM

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oof

dusty citrus May 31, 2021, 2:02 PM

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The voltage at the receptacle is usually 115 VAC or so - mine's near 125.

delicate stream May 31, 2021, 2:03 PM

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One of the computers I want needs 480VAC, lol

dusty citrus May 31, 2021, 2:03 PM

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(there's a transformer 'slug' or somesuch they can turn on the pole - with a wrench I think ;)

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Aircraft (on-board) used to use three-phase, maybe - and was in the 400's maybe.

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(maybe 400 Hz - been a while ;)

delicate stream May 31, 2021, 2:03 PM

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Yeah, US outlets use 1 of the 2 delivered phases to get 120VAC

polar bloom May 31, 2021, 2:03 PM

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You can get three-phase in Europe

delicate stream May 31, 2021, 2:04 PM

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400Hz for aircraft, because smaller components

dusty citrus May 31, 2021, 2:04 PM

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Factories here in USA have three-phase.

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Houses get two-phase.

delicate stream May 31, 2021, 2:04 PM

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The US does have 3-phase for industrial and high-capacity residential -- apartment buildings get 3-phase in, generally 2 phases delivered to the individual apartments, then split to 1 phase for outlets

dusty citrus May 31, 2021, 2:05 PM

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In most houses both legs are used; one for half the outlets; one for the other half.

delicate stream May 31, 2021, 2:06 PM

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And both for big things like driers, washing machines, monstrous computers, etc.

polar bloom May 31, 2021, 2:09 PM

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3-phase here is 380/400V, although it's generally not installed in homes (unless you get an electrical car charger).

delicate stream May 31, 2021, 2:14 PM

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I forget what it is here, but I'm currently more interested in 200A service then 3-phase

polar bloom May 31, 2021, 2:15 PM

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That seems like a lot of amps...

dusty citrus May 31, 2021, 2:17 PM

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200A service is standard in single-family homes - maybe more.

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(I don't think it's common to find service below that rating)

tardy badger May 31, 2021, 2:17 PM

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Really?

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Lots of homes usually only have 100-150A services

dusty citrus May 31, 2021, 2:17 PM

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That'd be 24 kW ;)

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(at 120 VAC)

umbral phoenix May 31, 2021, 2:18 PM

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200A is a relatively recent thing for new constriuction, smaller older homes may even have 60A

dusty citrus May 31, 2021, 2:18 PM

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<shrug> I thought I knew!

tardy badger May 31, 2021, 2:18 PM

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Any homes that I’ve seen with 200A service usually have two 100A panels and have it because of needing multiple HVAC systems

polar bloom May 31, 2021, 2:19 PM

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Here it's 25A total (and 16A per group).

dusty citrus May 31, 2021, 2:19 PM

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(recursively: I thought I thought I knew! .. I thought I thought I thought I knew!)

delicate stream May 31, 2021, 2:20 PM

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100A 240VAC is standard in this area

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Well, old houses

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Some old houses have 60A

tardy badger May 31, 2021, 2:21 PM

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Older homes have 10-15A 110/120VAC circuits if they haven’t been updated to 15-30A 110/120VAC circuits/wiring

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I’ve seen some old 2 wire houses have 5A breakers which was really interesting

delicate stream May 31, 2021, 2:22 PM

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Outlets are 15A 120VAC as standard around here, 20A 120VAC or 240VAC for large appliances

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My house was originally knob and tube

tardy badger May 31, 2021, 2:22 PM

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Oh nice

delicate stream May 31, 2021, 2:23 PM

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Some remnants live in the attic

tardy badger May 31, 2021, 2:23 PM

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Nice

delicate stream May 31, 2021, 2:23 PM

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But I'm upgrading most rooms to 20A now

tardy badger May 31, 2021, 2:24 PM

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Kitchen outlets are the rare coveted 20A 120VAC

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And garage outlets too

dusty citrus May 31, 2021, 2:24 PM

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Choosing electric heat, hot water tanks and major appliances that are powered by electricity only very quickly adds up the electrical demand for the house and will easily dictate a 200 amp service.

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cf
https://www.quora.com/Is-a-100-amp-electric-service-enough-for-your-house

delicate stream May 31, 2021, 2:24 PM

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Our kitchen outlets are 15A GFCI

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GFIC?

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I think it's GFCI

tardy badger May 31, 2021, 2:25 PM

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You need 20A for many modern overhead microwaves that have all the power 😈

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1800W microwave/convection oven combo

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I think my microwave in my apartment is 1200W

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But it’s a standard overhead microwave

delicate stream May 31, 2021, 2:28 PM

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My microwave is 1200W

polar bloom May 31, 2021, 2:28 PM

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So stupid question: do you guys need so many amps because the voltage is lower?

dusty citrus May 31, 2021, 2:28 PM

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My power bill only dips in the spring and fall, between use of the furnace (winter) and air conditioner (window unit, 10k BTU) in summer.

tardy badger May 31, 2021, 2:28 PM

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My parents had one of those fancy combo microwaves that could do convection baking

delicate stream May 31, 2021, 2:28 PM

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Yeah, 120V needs 10A is the same as 240V 5A

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Both 1200W

tardy badger May 31, 2021, 2:29 PM

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I think it was 2100W

dusty citrus May 31, 2021, 2:29 PM

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@polar bloom For 'simple' DC calculation, Power = Voltage times Current

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So if you halve the volts you have to double the amps to maintain the same watts

delicate stream May 31, 2021, 2:29 PM

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W=V*A

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A=W/V

polar bloom May 31, 2021, 2:30 PM

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I know the formula, just never realized it meant in the US the amperage would go up by 2x compared to Europe.

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But that makes sense 🙂

dusty citrus May 31, 2021, 2:30 PM

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My ham transmitter put out 100 watts - since the volts were in the 700's the amps were very low.

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What's interesting to me is that the wire that carries the amperes isn't very sensitive to the voltage.

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The thickness of the wire depends almost entirely on the amps, not on the volts.

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I say 'almost' because I'm still investigating this. ;)

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so, 12 V @5A vs 5 V @5A just about the same wire gauge.

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(for fire safety, say)

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The ohms-per-meter will impact the 5V line more, though, in percentage.

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(I think; not sure)

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I = E / R so lowering E has consequences (and R is fixed by the wire gauge and length)

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I = E / R .. I = 12 / 2 .. I = 6 / 1

I = E / R .. I = 2 / 2 .. I = 1

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Dropping the line from 12V to 2V causes the Amps to drop from 6A to just 1A for the same resistance, R (2 Ohms).

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P = E * I  ..  P = 12 * 6  ..  Power = 72 Watts

P = E * I  ..  P = 2 * 1 .. Power = 2 Watts

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Big difference.

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2 * 6 = 12W so the wire gets about as hot with 2V and 6A as it does with 12V and 6A, but is only delivering 12 Watts instead of 72 Watts.

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Upping the voltage lets you pass more power (in Watts) for the very same current (in Amperes).