oh my, this old blog post of mine from 2005 https://emergent.unpythonic.net/software/01126462511-glif was I naive, or was client-side image generation nonexistent back then?
#general-chat
late fulcrum
I did some client-side image generation in those days, but with Java.
umbral phoenix
I recently got Mosaic working again on Mac OS 8 😉 (except for a lot of that pesky JavaScript stuff that modern websites use)
finite monolith
Sweet. Bust out https://github.com/tenox7/wrp for it
umbral phoenix
@finite monolith That looks quite interesting, thanks
finite monolith
I found it and played with it when I was getting my DreamCast dialing up and online
half elm
@late fulcrum nice game you got there
late fulcrum
Yeah, it's a hack 🙂
fickle slate
presumably it's his chrome.exe or whatever program he always has open renamed to that title
(you dont have to rename the .exe, just rename the "game" in discord)
tough shale
dusty citrus
What does "G4" mean on TI chips?
zealous ermine
Skynet has to start from somewhere lol
versed pumice
There's JPL commands to put a message on the screen too.
But most printers don't support them anymore.
I had a friend who got a big kick out of putting "please insert quarter" on printers.
edgy apex
You can stream to Facebook and other services with a pi 4 and a USB webcam. Firefox-esr didn't work and chromium wasn't compatible with Facebook and would lock up after a bit with other services. So I found this gem, how to install the latest Firefox. With it I have no issues streaming.
https://youtu.be/Rs-C_omLlqs
dusty citrus
i have some issues with Ngrok
for some reason i cant SSH onto the linux machine i have
tcp://0.tcp.ngrok.io:17799 port 22
i keep on trying to ssh and it isnt working
late fulcrum
Is it port 17799 or port 22? What tool are you using? Is 0.tcp really part of the hostname?
red hull
i made a background and a sprite for my tamagotchi prototype featuring a kodama
its not perfect but this will get me through to the coding part of the project just fine
i wonder if its gonna be too small on the screen ha
proud vector
YEEEEEET
red hull
wth
tame saddle
@proud vector Welcome to the Adafruit server. we don't mind a little sharing, but please don't spam links to your YT channel.
latent arch
@night crescent Would it be possible to send a link for the split keyboard that is on the desk of Ladyada? I've searched for it, but can't find it. I believe it looks like:
sleek quarry
i think it might be version of https://ergodox-ez.com/ but not 100% sure
pure haven
I used one like this for years at work. I liked it and the best part was everyone hated it so no one tried to use my computer.
late fulcrum
That's why there's this https://www.adafruit.com/product/3601
fathom relic
Is everyone having issues with ups delivery delays? as in the package gets to out for delivery, but gets delayed a business day, out for delivery the next day, delayed again, repeat?
Seems to be happening locally to about half the packages I've seen tracking for for family and work. Often like 3 days delayed, record so far is 12 days, my sister's package was first out for delivery May 1st, and still hasn't arrived. /ups on reddit seems to imply it's widespread, but there's selection bias there.
theory on reddit is that their volume is at christmas levels right now, and trucks are being loaded with more packages than can possibly be delivered in one day. But what I see at work is packages out for delivery, a pile of packages get delivered, around 11-12 like normal but not the ones I'm waiting on, even though they were out for delivery.
fathom relic
What I'm seeing is last minute delays. You watch tracking, expected delivery by 9 pm, and some time past 9 pm it changes to delivery exception or delayed 1 business day. So possibly local issues
covert spire
Some people talked me into building keyboards
Then again, when you include all the components, instead of just soldering on the switches, it's easier to peak my interest
Especially when the components are displayed
But question, does anyone see reason for ortholinear layout?
sleek quarry
your hands, your decision, im not sure if there is easy way to "test drive" ortholinear keyboard
red hull
My delivery was pushed to monday from thursday 😦
There go my weekend plans.... 😭
that sucks.......
fathom relic
the 12 days late delivery is up to 14 so far, once again it's out for delivery. Was shipped April 27, got to the local center May 1, and has gone out for delivery every monday through saturday since
at least 12 times it's gone on the truck for delivery, eventually it's just going to be lost when the box or label gets destroyed
burnt tendon
I'm sorry. I probably stole your karma because last week's DigiKey order came 2 days early.
slate stirrup
@red hull I was so hyped I started to look for other cool keyboards and I found this (I can attach or disattach it whatever I feel like, sounds cool) https://ultimatehackingkeyboard.com/
slate stirrup
I like the idea with attachments like touchpad etc looks super cool to me, I might consider one in future 😄
open slate
It looks cool but it's also $275 
slate stirrup
@open slate you can always sell a kidney (just kidding obviously)
🏥
@open slate how did you add that doge, its some payed ability? (I'm new to discord)
tardy basin
hi
open slate
Yeah, @slate stirrup . Discord Nitro perks.
my horrible diagram that i just made in MS paint
dusty citrus
Digikey accepted my order for the STM32F407 Discovery board.
No questions asked or affirmations required.
sleek quarry
it seems discord thinks we are educational enough to promote it as one 
rain ferry
That's how I found this server
open slate
this server is pretty educational
latent arch
I've been programming in Arduino for a year or so now and really only do stuff for my chicken coop and therefore have everything I need on my computer and I perform backups to the cloud. Is there a reason I should switch to using GITHUB? If so, what are the best resources for learning the best ways to implement this moving forward? I'm about to jump into CircuitPython for my daugher's NeoPixel strings for her office. Any guidance would be greatly appreciated. Thanks
rain ferry
Do you use a version control tool?
burnt tendon
I was about to ask the same thing.
Github over just plain git if you've got backups is I guess kinda marginal, although your local git state can get into a bad situation requiring you to hit a remote.
latent arch
The versioning I use is 100% manual by saving as a new file name
rain ferry
Oh so then you should definitely look at using git
latent arch
Thanks. @rain ferry do you have a recommendation on where I can get the best info to start learning how to use it?
sleek quarry
id you are more into servers and such then you can always set up personal git server
if you need something with web thing you can also get GitLab on your own machine
rain ferry
Git's website has some good resources and is where I learned about git. https://git-scm.com/doc
latent arch
Thanks a ton @rain ferry I've got some light reading/watching ahead of me 🙂
rain ferry
No problem
latent arch
@sleek quarry if I go down the path of using the public git servers, would I be able to migrate everything easily over to my own server if I decide to implement that?
sleek quarry
git has become more accessible with GUI based systems
so no real need to use command line git that can be really confusing
they all use git inside, so you can use it on github, gitlab, bitbucket, or what ever
burnt tendon
Ugh, I've had really bad results with people using the GUI tools when I've had a population of non-git-users at work.
It's always been me thinking "Well, this shouldn't be hard and I don't want to make their lives miserable" and ends up with "OMG what did that GUI tool do to your Git repo?!?!" and I end up having to teach them the CLI.
However. Migrating git repos is easy.
latent arch
@sleek quarry what is the difference between GitLab and the Git Gui I already installed? (If you know) Is there an advantage of GitLab over github, bitbucket (never heard of that one) or others?
@burnt tendon if I'm the only one in it, would the repo still get all screwed up?
although, I might be adding my daughter into the mix at somepoint as well...
burnt tendon
Yah, so, git and other source control systems really shine when you are collaborating.
Basically, git stores stuff as a database on disk.
latent arch
ok
burnt tendon
It's a special-purpose thing and, at least in the past, occasionally weird things would happen and that database would get corrupted.
A mere backup of the files isn't going to save you there, but pulling a clone off of a different git repo will.
Now, probably this is a lot less likely today after a zillion people have been poking at Git, fixing bugs, etc.
latent arch
@burnt tendon do you have any recommendations on resources to learn git?
burnt tendon
I still find, even for things that only I work on, it's quite convenient to keep my things in git repos and sync them up to GitHub .
latent arch
so is a git repo something that's on my machine and then you sync it to github (cloud-esque location)?
latent arch
Very much appreciated!!!
burnt tendon
And GitHub is what the bulk of the open source world uses.
Except that a lot of people are increasingly unhappy with all of that power being centralized in a single Microsoft subsidiary and several of my favorite GitHubbers ran from the building screaming
latent arch
yeah, I've seen the links to Git, but always struggled with trying to download examples and such and trying to navigate. Time to learn!!!
Oh, I didn't know it was an MS subsidiary
that's a bummer!
burnt tendon
It was it's own cute lil' startup but MS picked them up a few years back.
late fulcrum
There's still gitlab
burnt tendon
Yah
stray wind
@latent arch This is my workflow in a guide form: https://learn.adafruit.com/contribute-to-circuitpython-with-git-and-github It doesn't get into super complicated things that git can do, but the first few sections cover some basics.
latent arch
Thanks @stray wind, I'll take a gander at this tonight. Starting off right now with the git-scm documentation - seems "fairly straight forward"...
stray wind
Famous last words 😉
I'm kidding... Seriously, whatever type of documentation works best for you is what you should use.
That guide was designed to help people looking to contribute to CircuitPython, but works as a beginner workflow as well. If their docs work for you, even better, they're far more in depth 🙂
sleek quarry
burnt tendon
so true
dusty citrus
$ git branch -avv
ripe ridge
Playing with miniature photography using a circuit playground bluefruit as a light source on some minis I painted.
gusty warren
Anyone have any recommendations for a good label maker?
willow ruin
@ripe ridge the Enterprise-A is such a beautiful ship.
Though if I’m not mistaken that’s the Phase-II design?
ripe ridge
I painted it, so there are creative liberties taken. :) the deep cuts miniatures are detailed, but by no means perfect, so I end up painting it so it "feels right" and evokes the memories of the ship. Being a TNG kid, I think that influences me and drew me to wand a phase II look, though it wasn't conscious.
late fulcrum
@gusty warren Big Clive likes the Brother PTE300VP. I'm fond of the Dymo P-Touch for portable use and the Dymo LabelWriter for computer-based label making.
grave crest
@late fulcrum How much wasted material does your model generate per label? I'm considering getting a label maker, but all the negative reviews I read of various models point to one major flaw: excessive wasted material.
sleek quarry
excellent video about label printers in general but focuses on an expensive one
https://youtu.be/W2SRePOg4VM
personally P-Touch D210 seems like a one to get but i have not pulled a trigger for it myself
gusty warren
dymo label writer looks nice, but looks like it prints on pre sized labels?
would be cool if it printed on a strip and cut it lol
would love to be able to type up the labels though and hit print instead of typing by hand
making large numbers of labels on hand helds sucks.
I have a lot of stuff to label at first.
sleek quarry
also keep in mind there are sticker sheets that you can buy, tho there can be a lot of work on getting printed on right place but it is cheaper, just normal printer
gusty warren
don't wanna do that
late fulcrum
The P-Touch doesn't waste a lot, but it does waste some. Yes, the LabelWriter uses pre-sized labels. I have several sizes in stock from little square ones used to label things like parts drawers to fairly large ones I use for addressing packages.
gusty warren
I ordered a brother QL810W
it does pre made and continuous
lotta people seem to like it
sick adder
I recently passed 100 repositories on my github
ocean sigil
💯
frank gale
Hi everyone, can anyone recommend an (under $300) 3d Printer that is actually shipping right now? Thanks in advance!
real falcon
@spice harness https://www.kickstarter.com/projects/thepocketinjector/the-pocket-inyector?ref=discovery_category kickstarter
dont look like it will happen though
spice harness
@real falcon look like a very cool machine!!! now I want to make one, and the funny part that I'm trying to work on a code for arduino and stepper
real falcon
nice. that project is kinda meh, video we saw uses much bigger steppers for better seal and plastic injection pressure
its better to do homebrew since you can use bigger steppers
i dont mind trying to make one but my skills is much lower than yours lol
spice harness
I'm trying to convert a serger machine to stepper
@real falcon also how is your new laser diode?
real falcon
it works but my board dont turn it or change power besides full on
havent tested ttl beenb too lazy and busy
hows your area on covid?
here it isnt too bad but stay at home order till june 1st
craggy rock
cleveland is slowly opening back up. stay at home orders have been lifted but social distancing and taking full precautions is still advised
real falcon
heard some states have cases blowing up again after reopen 😦
craggy rock
yeah, that seems to be the case. it will take time to settle down unfortunately
real falcon
i wear mask to work everday for now. "yay"
sleek quarry
here we lowered the state emergency level
number look hopeful
also employer - starting this week, who wants can return to office, who don't want can do home office (or both)
willow ruin
I’m in LA, so it’s still going to be months for us
jovial swift
If barber shops in NJ don't open soon I'm going to look like Tom Hanks in Castaway - not now Wilson, I'm chatting on Discord
grave crest
There's always shaving it off entirely -- low maintenance for the summer.
Also helps if one was already enduring male pattern baldness -- I was halfway there without even trying 🙂
jovial swift
if I shave it all off I'll only have hair in my ears 🙂 what?, no Wilson leave me be I'm busy
fickle slate
sick adder
I found this URL in my history. Looks weird, but somehow it works https://esolangs.org/wiki////
umbral phoenix
Empty path segments are allowed (with an exception on the first segment), but that's a pretty interesting use case.
dusty citrus
I wonder what it resolves to.
orchid zephyr
Does anyone have any idea what this is?
manic epoch
sick adder
https://www.youtube.com/watch?v=fZSFNUT6iY8 "AI generates Python code"
edgy apex
I setup a very slow Nyancat with Nyancat audio, left if streaming overnight and I got 23 fans 😂
nimble ice
been working on a project for a little bit, this is recorded running on my desktop, but my pi is where the rest+react+discord bot run and is always where my database is, it is a student incentive project i am doing, this is showing the new feature on the app I made to scan in students using the QR codes it generates
crude axle
interesting moth
dusty citrus
mecrisp-stellaris(-RA) loads and runs on STM32F407 Discovery board.
The non-RA version gave sketchy results.
Since Adafruit uses a different crystal (8 MHz vs 12 MHz?) it doesn't quite work right on STM32F405 Express without modification, but I don't remember the details (it's been months since I tried to use mecrisp on the Adafruit target).
Same chip, same port pins (iirc) but different clock freq. which affects USART communication speed.
eForth runs on both targets, unaltered.
🔹
I know almost enough eForth now to modify for STM32F405 Express to move the USART back onto the 'correct' pins for that target.
From Ting's distributed file, you have to use the (silc-screened) SDA/SCL pair for TX/RX (may have that reversed) on the Adafruit target.
The Discovery board uses ST-LINK whereas Adafruit uses dfu-util and the other one. ST-LINK requires a 'helper' chip to host that program.
Still trying to figure out if I can use dfu-util on the Discovery board. I'm guessing I'd use a USART on the main chip (F407) to do so.
🛩️
v 2.4.8:
commit 5ec50fedf5c8fe6ff7ce764d13ca8ade864d28a6
Author: Jean Jonethal <jjonethal@yahoo.de>
Date: Tue Feb 5 22:46:02 2019 +0100
v2.4.8
Earlier discussion was in #help-with-projects .
lol #general-tech too ;)
short anvil
Figured I'd ask this here since I'm between a rock and a hard place, lol
I've got this Insignia TV with a broken mainboard
This is the stock board on it, a replacement one anyways
But I look on ebay and what do I find?
Board is for the same model, but has extra inputs and I'm like "Hmmm, I could use a second set of component cables, yeah
And it looks like
It seems as though
This board has 4 HDMI ports instead of 2
What do any of ya'll think the chances are that this board is incompatible with my LCD?
sick adder
@short anvil I'd have to be convinced the internal connectors all matched. And if they're moved there is the possibility an existing cable would not be long enough. A plan for how to get the extra external connector area exposed is critical too
late fulcrum
I tried something like that when the mainboard for my TV was unavailable but I could find what looked like a trivial variant. Didn't work at all, apparently the firmware was pretty specific. Your mileage, of course, may vary.
arctic peak
<@&327289013561982976> We have a spammer ^^
That username is posting in other channels too.
tame saddle
yep. its being handled. thanks for the notification @arctic peak!
vital harness
So, I set up OBS and am waiting on a capture card to start streaming. I wanna do 2 or 3 nights of game dev streaming a week. Here's a breakdown of the order of projects I'm wanting to work on. Of course, I'll re-order this a bit if anyone finds particular interest in something specific.
• PS Vita / PC game (Unity/C#)
• Palm OS game (VB or C++)
• PyGamer/PyBadge game (C++)
• Another PS Vita game (C++)
• Windows CE 3.0 game (VB or Vis C++)
• ODROID GO game (C++)
• RG-350 game (C++)
• Gamebuino game (C++)
• New Arduboy game (C++)
• Maybe a PPC game (?)
Please let me know if you'd be interested. Thanks.
crystal ore
PalmOS? LOL, that takes me back...
vital harness
It was technically the first system I ever programmed for. XD
I've been wanting to revisit it as an adult and actually finish something good. 🙂 I'm hoping to port Circuit Dude to it.
crystal ore
Awesome... 👍
vital harness
@short anvil !!!! Whoa!!! You are right!!!!!
cinder quarry
"AI generates Python Code"... soon to be followed by "AI generates its first 'it worked in dev' excuse"
runic plinth
jovial swift
I'll play an occasional bubble shooter, not a big gamer, but always wanted to know how to do it...
late fulcrum
What does it run on? Atari? Sega? Nintendo? Playstation?
edgy apex
Memorial day is one of the few times that I share my grandmother's brothers story. He was special forces (OSS) in world war 2. His team parachuted into enemy territory is civillian clothes and they operated for a couple weeks before they were killed recrossing enemy lines. He was posthumously awarded the Croix de Guerre (French medal of honor) and the Distinguished Service Cross. (2nd highest us medal). The actual story is too long to post here so if you are interested DM me. Never forget the fallen.
His story is also part of what got me interested in technology. In 2001 (I was 13) when I lived in MD my grandma, my parents and I got a tour of the museum inside the CIA and it really inspired me. The museum has since been digitized. This was one of my favorites
https://www.cia.gov/about-cia/cia-museum/experience-the-collection/index.html#!/artifact/131
polar wraith
@edgy apex Thank you for posting that. My son is an active duty Marine who had multiple combat tours in Iraq and Afghanistan. The lists of funerals we've been to is too long to add here. [Edit: he's 29 and he/I have been to 59.]
edgy apex
the short version of his story is here page 26-29 (page 37-40 of the pdf)
https://apps.dtic.mil/dtic/tr/fulltext/u2/a244831.pdf
My grandma passed a few years ago and now I am in charge of the records and medals.
polar wraith
@edgy apex It's depressing to realize we're losing all those memories as the number of WWII veterans dwindles. Thank you for doing what you're doing.
edgy apex
I have a facination with the jedburghs and I will never let them be forgotten
dusty citrus
Can someone explain radiation to me in terms of why it doesn’t seem to reflect off of surfaces
Take the sun, for example, if I can see its light, then, clearly, the surface I’m seeing it on couldn’t absorb that wavelength, but my eyes could
But why can’t I feel heat from another direction, too?
Is it impossible to reflect or refract that radiation?
.........
What in the world?
I guess I’m not suited to ask this question :/
crystal ore
Probably the main thing to realize is that the sun doesn't give off a lot of heat radiation directly... almost all of it is in higher wavelengths. So when you feel warm standing in the sun, it's because your skin is absorbing some of the light and converting it to heat. Similarly, any other illuminated object will absorb some light and become warm, but it will only radiate heat according to its own temperature, not the temperature of the sun.
dusty citrus
Woah, interesting
Would the sun be a whole lot more dangerous if it was more direct in that fashion?
Wait, speaking of danger... when you’re in the sun, the DNA polymerase in your skin’s cells slightly denatures, in the sense that it makes more mistakes while doing its job. So it makes mutated cells, and those cells just make more, and it really screws up your skin
But is it just because it’s a higher temperature than the protein is comfortable with, or is that more complicated?
crystal ore
I think the primary cancer cause is ultraviolet light, where the individual photons are high-energy enough to have some impact on the chemistry.
dusty citrus
Ultraviolet, huh
So, if that’s the cause of that heat, are you saying it would definitely be possible for a reflective surface to be fine enough to reject those wavelengths and heat things up in another direction?
crystal ore
Absolutely. If you set up a metal mirror next to a fireplace, for instance (without a glass cover), you can feel the heat in the reflection.
dusty citrus
That’s pretty cool
In asking that question, another, far more difficult one, dawned on me
I may be wrong to assume that I can see light because my eyes succeeded in absorbing it, and the energy agitated the system of sensors that told the brain to map the information
Or am I in the ballpark?
crystal ore
Yes, that's correct. Cells in your retina have chemicals that absorb some of the light and react to it. In fact there are multiple types of absorbers, which is why you can distinguish colors too.
dusty citrus
Alright, going off that, I wondered just how many watts I process on an average sunny day
A couple micros, maybe?
I think I remember Styropyro telling me that a safe laser is rated below 15 mW or something, so maybe less than that?
crystal ore
Sunlight is about 1000 watts per square meter total. Your pupils are a millimeter or few across, so your eyes would be indeed getting microwatts or so.
crystal ore
Yup. Solar panels are only about 20% efficient, so they can put out about 200W/m^2 in direct sun.
dusty citrus
Why
What factors hinder the panel from getting power that much
Also, (ignoring natural capacitance) does a panel really only absorb energy if you’re pulling current from the panel and doing something with the energy?
I would assume so, I’m not very good with circuits
crystal ore
That's a little past my understanding of solar panels, so I'll defer to someone else there instead of possibly giving you wrong information.
tiny kelp
Solar panels work because of the photo-electric effect and reaction occurs whether or not you are "using the electricity" form a solar panel. The energy from the sun is "hitting" the panel whether you use it or not.
Current is when electrons move from one potential to another. This potential difference is what we call voltage. An alkaline battery has a voltage whether it's hooked up to a lightbulb, or sitting in a drawer.
So, when the light from the sun hits the solar panel, a voltage potential is created (it's a voltage source, not a current source). When you put a load across the solar panel, then current happens.
dusty citrus
This implies the existence of a current source that isn’t a voltage source
tiny kelp
I don't quite follow that
dusty citrus
Well, you said it’s a voltage source, not a current source, and I have to pull current for current to happen
So what would be the opposite
It’s a weird concept for me, sorry if it’s a bad question
tiny kelp
dusty citrus
Ah, nice
tiny kelp
" Unlike a battery that produces an (approximately) fixed voltage for a wide range of currents, a current source produces an (approximately) fixed current for a wide range of voltages."
The voltage across a battery is generally "fixed"
"12v battery"
dusty citrus
Right
tiny kelp
A solar panel is basically a battery that requires constant sunlight to stay charged and it's voltage can vary based on light
dusty citrus
So it’s a variable voltage source proportional to how much sun is hitting it
The more sun hits it, the more joules with which the electrons will want to travel, right?
So you’re saying the potential energy in a panel can always change, but I can choose to turn that into kinetic energy
The energy doesn’t spontaneously come when I use it
tiny kelp
Don't mix up voltage and energy (watts) which is voltage x current
dusty citrus
I see
tiny kelp
I'm not as familiar with the physical properties of solar panels (how much current they can support)
dusty citrus
Pretty sure voltage is joules per coulomb, right?
So potential energy?
And current is coulombs per second
That helped me understand the difference between the two
dusty citrus
Voltage is just “strength”
tiny kelp
eh, i wouldn't necessarily subscribe to the word Strength
Does "strength" mean "powerful"
That can make things confusing depending on who you talk to
dusty citrus
Well, no, not powerful, I mean strength as in how badly electrons want to move from one place to another
The bigger the difference, the harder they’ll “push”, I suppose
And more “pushing” means more speed, which means more current
This is just kinda how I view it
I’m not very experienced, but I suppose this works, right?
tiny kelp
well, the speed is really very close to the speed of light, adjusted for the medium
late fulcrum
late fulcrum
Voltage is like pressure, current is like flow
dusty citrus
And ohms are the dynamics of the path the flow takes
tiny kelp
volt is really telling you how much work is required to move a charge between two points
I think you've got it
dusty citrus
I feel like “work” requires a side definition
tiny kelp
work = force * distance
dusty citrus
Ah, yes
So, with solar panels, what’s going on, put more simply?
More sun = more pressure?
late fulcrum
Kinda. The efficiency varies depending on the load. There are some circuits, known as "maximum power point" that adjust the load dynamically to get the most power (voltage times current) for the current conditions.
dusty citrus
Hm
tiny kelp
power transfer
dusty citrus
Are panels unstable? As in, would you use some low pass filters to prevent spikes?
I’m thinking of using one later
tiny kelp
I'm not sure where you're at in your study, but you should have a good understanding of this:
Based on the types of questions you're asking
late fulcrum
The maximum power point trackers normally have a buck/boost regulator so the output voltage doesn't vary with the panel's output. Usually there's a battery bank too, to smooth things out and cover source/load variations.
dusty citrus
Ah
tiny kelp
Right, you wouldn't directly power something from a PV cell in a practical setting
Ok, this has been fun, but this yard isn't going to mow itself (unless i get solar powered mowing robot)
Good chat!
dusty citrus
Heh, thank you
late fulcrum
My lawn tractor is electric, I could at least theoretically run it with solar energy.
dusty citrus
I’ve been considering doing something cool with this huge solar panel I have stored up
I don’t have it with me, but it’s a good 2 x 3 feet
And made about 24 volts last time I checked it on a bright day
I’ve been thinking of making a solar powered usb phone charger
I have a usb battery with a screen that displays how much power is being pulled from it, and my phone seemed to draw a solid 6 watts
If I hooked up the panel to some big caps, and left them in the sun for a few minutes charging before plugging phones in, would it be voltage-spike-proof?
late fulcrum
Solar panels don't really produce voltage spikes, but they voltage they produce does vary with both the solar exposure and the load. The capacitors won't really change that appreciably.
You could use something like this to convert the panel voltage into something you could use to charge a phone https://hobbyking.com/en_us/turnigy-5a-8-26v-sbec-for-lipo.html
sick adder
this must be good for something https://github.com/laukik-hase/OTA_update_STM32_using_ESP32
gusty warren
On the subject of soldering, I want to try some soon, was thinking about doing a D1 mini first. I watched eevblogs soldering tutorials, and others. He was saying the range for most soldering on circuit boards will be around 650-750F, does that sound about right? I noticed my hakko defaults to 750F so maybe that's why.
dusty citrus
@gusty warren Good luck on your soldering practice. Remember to flux, tin and clean, be quick, and always pull the alloy from the joint before removing the heat, in case he didn’t mention it
gusty warren
what temp do you need for 60/40?
yeah I have rosin core flux, flux paste, and a flux pen lol
proven olive
OK, normally I'm not one to just link more-or-less random things, but this? This has me laughing and I need to share.
https://twitter.com/cursedPC/status/1264997979255169025
jovial swift
^^^^ after a hard day at work nothing like a nice fluffy LiPo to rest my head on
and doubles as a heating pad from the looks of it...
grave crest
Hahaha, I love it
And if you attempt to resolder the connections to the pillow incorrectly, it'll probably catch fire.
It'll most likely catch fire if you attempt to solder anything to it, to be fair. 🔥
lapis bluff
Gee, I'd think a LiPo that size would store more than 40mAh. Maybe there's just too much other stuff in it. 🙂
mellow kayak
Who likes video games?
haughty solstice
Everyone.
pearl vigil
Darn it @proven olive you beat me to it, came to post the link from twitter XD
pearl vigil
100% agree with both points 😜
proven olive
LiPo batteries that have gone bad tend to puff up. Since LiPos can be volatile, this can be... hazardous. A pillow, of course, resembles such a puffed up LiPo
Fun fact: The reason you don't see many hard-cased LiPo batteries is that this puffing is a good thing. If there was a hard case around it, it would cause compression inside the cells, which, well. Leads to thermal runaway and fires.
ocean sigil
I love that term "thermal runaway" -- AKA explosion
proven olive
It's not quite an explosion, but that's about my knowledge of the difference
ocean sigil
When Lithium batteries were new, I remember the sales reps using that term
We used to put them in sealed pressure housings for underwater (deep-sea) instruments. It was very scary to unbolt the end cap when the instruments were recovered.
late fulcrum
The phrase I saw bandied about was "venting with flame", which is reasonably descriptive.
proven olive
LiPos are secretly dragons in disguise.
real falcon
no wonder dragons is gone
late fulcrum
Not gone, just hiding, disguised as rechargeable cells. 🔋
proven juniper
Can you id all of the boards?
tawdry turtle
Can anyone suggest me how can I get a remote internship in Iot or Computer vision. It would be a great help if you people could help me figure that out.
🙂
late fulcrum
First, look at companies doing that sort of thing.
stuck moth
@tawdry turtle Google Summer of Code can be a good first start for a remote internship as well
tawdry turtle
yeah i did thought of Gsoc but i didn't quite understand it.
well I am looking for companies and even applying in them but not getting a good response yet. Although I have worked on many projects regarding them and i have also mentioned them in my cv but still didn't got anything yet😅
late fulcrum
Many companies have restricted their operations due to the pandemic.
tawdry turtle
yes that is true.
stuck moth
https://mlh.io/ is running some stuff too
depending on your experience level I'd encourage you to look for broader topics
tawdry turtle
okay ike what, can you give any example
stuck moth
google also has: https://developers.google.com/season-of-docs/
take a look at summer of code for example and apply to projects that aren't IOT or computer vision
tawdry turtle
okay I'll do that. Thanks for your suggestion @stuck moth and @late fulcrum i will sure try what you told me😄
dusty citrus
going back to lipo discussion
i remember LG was doing this campaign
it was this thing where they were trying to push the blame to customers
it was a vape battery that did a boom
because guess what? it was UNPROTECTED
dusty citrus
most of those batteries have a protection board in them these days if i am correct.
But yeah actually seen a mechanical vape mod explode.
scary.
slim patrol
I worry about the lipos I still have in moving boxes. They've been there for a year plus.
pearl vigil
Oo moving boxes, those make great kindling
jovial swift
GO SPACE X GO!!!! Launch still on for 4:30PM ET
pearl vigil
Might be a little imature, but I'm thinking boy, on top of that rocket for three+ hours after the suit up, and with the stress, I would need to pee
jovial swift
happened to Alan Shepard, just like SMT soldering, no coffee!
pearl vigil
F, launch cancelled
spice moss
more safe than sorry
tame saddle
scrubbed. :(
more safe than sorry
@spice moss had to explain this to my kiddo (in more detail then desired. haha). i'd rather a scrub than witness something similar to Challenger again.
grave crest
Never will argue with an overabundance of safety.
I bet the astronauts are thinking...."we're stuck on this rock for another couple of days!?" 😛
spice moss
still waiting on they seats
cobalt sandal
Guys I'm getting RPI0W Soon!!!
pearl vigil
You cant stop it unless whatever provider you are using has strong WAF, just enable 2FA
You dont need to be special, a bot needs to find you
dusty citrus
Well he killed windows update
installed a fake certificate
enabled use of unsigned scripts
installed a VM
changed several windows files.
He messed with my discord
He lagged my system
and manipulated the windows UI
this was no simple script kiddie
and he did this for months
☹️
and 90% of the stuff he used was already present in windows.
Who do i report this all to?
pearl vigil
Whoever manages your crap, there isnt anyone to report it to
Whatever login system you're showing in your photos, whoever owns it. If they do nothing then try to get 2FA, or stop using the service
dusty citrus
No one manages my pc.
it's a personal pc.
also 2FA did not stop him.
the login system you see is a attempt at reclaiming my system after i locked him out.
The screenshot is from the microsoft website
The IP is definitely vietnam.
tame saddle
is it your microsoft account that is getting hacked, or the physical computer?
dusty citrus
my physical pc
my friend reported strange messages
at times they said i was not online while i waited in chat
my pc would Freeze constantly
my web content would be outdated.
pearl vigil
Sounds like your well infected by a script kitty, wipe it boss
dusty citrus
just look at the notes on this recent update.
https://support.microsoft.com/en-us/help/4556799/windows-10-update-kb4556799
pearl vigil
You probably cant get him out because... windows
dusty citrus
And here's the ironic part.
Spoke to someone who asked me in discord.. do you have a problem with.
Socialist communism
pearl vigil
I know, it happens, this is not new. Wipe the machine and start new
pearl vigil
Oh yes, theyll get right on that after the 3 million people ahead of you
What do you think they would do?
dusty citrus
Well if you don't report it your not a statistic.
it's like not voting.. you lose all right to complain.
tame saddle
yeah, if its the machine, a wipe and password resets are the only real options. verify that your router/modem aren't a vector too.
pearl vigil
Agreed, they will hack and stay on your router or any vuerable device on your network
Important to be sanitary with your computer
fathom relic
probably use another computer on another network to download updates for your router, take it offline and update it, changing network name, password and everything. Set settings as restricted as possible. Ask your provider for a new IP address if it's not changing when you reboot modem, don't know if there is a way to check if modem is compromised.
Back stuff up offline and wipe computer and reinstall. Check for updates for everything else on your network too.
Also probably want to change your passwords on any accounts you've ever accessed with that computer, in case part of what they did was install a keylogger
dusty citrus
Actually i managed to undo and reinforce everything in windows
including the hacked logon screen.
it was a very fun process
i learned more in 4 days than i learned in 7 years
Windows's problem is there is too much already available for them to use.
To the system is seems like you are administrating remotely.
pearl vigil
I have heard of that before, many modern viruses and malware found on windows, Android, and iOS have found ways to persistat in the system in a seperate executable or dependancy so you can fix it but they're still there.
It might be there, it might not
Sadly because windows, really little way to tell unless you are a security expert. But the stories where the malware comes back or a new malware less noticable was installed seperatly are pretty good
dusty citrus
true
pearl vigil
And "reenforce"? How would one do that on Windows without the enterprise features? Install norton anti virus and raise user privileges?
I think I need to clarify norton was a joke
But you get my point
pearl vigil
"Disable all server features" oh well... I see your issue 😆
dusty citrus
but yeah wipe would be best.. if your account is not been manipulated
pearl vigil
Were you using normal windows as a server?
pearl vigil
I see.
dusty citrus
He setup a nice lil ssh console for himself
pearl vigil
Oh, well duh. I mean how have you made windows more secure then it was before the attacker made it in?
dusty citrus
do i sound less like a moron now?
pearl vigil
I dont think youre a moron, I hope I dont come across as mean
I dont mean to critisize you in any way, its just really dumb this is all still a thing
dusty citrus
tbh i enjoyed learning how he broke it
i cant say for sure i stoped it
but windows logs says he kept trying with failure
like when rick sanchez messed with the devil
pearl vigil
You think you are the only one infected? Imagine how many grandmothers and businesses have money funneled out of them because of this exact same thing. And its not like the Microsoft/Android/iOS engineers who worked their whole lives in OS devleopment dont kow how to make a secure OS. And yes, the way people hack is always very interesting. There will always be security holes but what you discuss is wayy too common
pearl vigil
I wish it was that easy
cobalt sandal
Just downlead and install Comodo antivirus and it should be A OK
dusty citrus
Honestly i learned something anti virus only works when they know the virus exists.
Cant defend from it if your never saw it.
mighty marlin
Heya! I nees some help generating some fancy terminology for an it department
Like department of atomatic processing units
It needs to be really long and complicated. And if you can fit in muaic and lights inthere aswell that be helpful
late fulcrum
@mighty marlin How about https://www.seventhsanctum.com/generate.php?Genname=itdept
mighty marlin
ooh thnaks!
potent lion
Can I ask here about tattoo?
I wanted to get one on my chest, like some kind of IC
And wanted to ask for suggestions
real falcon
my only recommandation is make sure it has personal meaning for you
i always wanted em but never had idea on what
potent lion
Oh yeah it does have kind of personal meaning
I like coding, I like arduino
I like haking into stuff
Its a part of me
I think some chip, where my hearth is located is suitable
I just made some drawing onto an nfc card, but I lost that
It just was implied and not detailed
There it is
Not as dense and not so many parts
real falcon
cool
definitely different from common as heck tribal markings
it yells to me "I has no personality woot!" (tribal markings)
small hull
I got a tshirt with a cpu over where the heart is. I figured if I ever get a tatoo that would be it
Basically like a yellow cpu and a few circuits going out from it
real falcon
I do want to have word "HUMANITY" on my right shoulder, and "SCIENCE" on my left.
the first 2 important things in universe I think. (though should use "sapien" on right one in case aliens visit while I am still alive)
basically its like this. science is pointless without us humans, and humans will keep advancing with science
potent lion
Okay, Im happy you like what I draw 🙂
real falcon
its cool
potent lion
Okay, I will be at the studio in 30 minutes for consulting
real falcon
🙂
real falcon
nice!
sick adder
https://lincolnbinns.com/hdmi-extender-board-rp3.html this is a brilliant concept. Now make one for pi4.
spice moss
space is the final frontier, boldy go right
spice moss
seems like SpaceX launch the historic launch today
jovial swift
GO SpaceX GO!!! T-14:00 still go
T - 10:00 STILL GO!
Hey bot, not spamming, haven't launched in almost 10 years!
T - 2:00 !
jovial swift
So far so good T +20:00
crude trench
Bob and Doug take off, eh?
spice moss
they are going to international spacestation
pearl vigil
Super cool
jovial swift
footage from the cockpit - all glass!
and the first stage touches down on drone ship - way too cool
fickle slate
you should check out the apollo fdai
dusty citrus
Yep.
my router was exploited too.
Firmware was blasted.
potent lion
@real falcon I got the template from designer
Wow im super exited
It looks super awesome
real falcon
wow nice
sick adder
fun little puzzle if you know the basics of chess: https://puzzling.stackexchange.com/questions/98697/a-knight-chased-by-three-knights
sick adder
@dry belfry feel free to submit translations, vs just suggesting them.
The last 20% (?) of the french translations are machine translations, vetted by my 20 years old college french so I am certain there are improvements to be made.
gusty warren
anyone know if you can buy nixie tube look a likes that can be controlled with a micro controller?
late fulcrum
There's stuff like this https://www.tindie.com/stores/connornishijima/
Also EL wire type stuff, and (of course) there are genuine nixie boards that are microcontroller controllable (Smartnixie, Ardunixie, Sal Marcin's modules, etc.)
I went with the "roll your own" approach.
odd lake
is your goal avoiding making glue logic for this?
late fulcrum
The prototype was, um, less attractive
odd lake
The proper framing would turn that into a gallery piece
That would genuinely make a lovely wall clock
late fulcrum
That build was for a prop.
elder rain
Oh my god those nixie tubes look awesome
orchid zephyr
I ordered some stuff through digikey that was back ordered and it hasn’t came yet
grave crest
That's not to be unexpected. Have patience @orchid zephyr -- the entire supply chain is heavily impacted right now due to Covid. It might be some time before they can those products back in.
If essential, I suggest looking at other vendors like Mouser, Newark, etc. Perhaps they have the components in stock.
crystal ore
Octopart is a good cross-distributor search tool to see where a part number is in stock.
gusty warren
the supply chain is impacted by governments over-reacting and sticking their noses where they don't belong, fixed that for ya. 😄
grave crest
Looking for a recommendation -- anyone have a favorite external "dock" for a Macbook Pro with USB-C? I'm browsing possibilities and value the experience of folks who have actually used them.
I'm looking for something that supports 2x 1920x1200, 1x 2560x1600, 3.5mm audio, USB 2.0/3.0 type A, and power the laptop --- but that's a perfect world. If I can get just 2x external displays, that's fine with me.
late fulcrum
If one of those displays is a Cinema display, it will do most of that.
grave crest
Sadly, no -- they're various Dell Ultrasharps and Acer IPS panels.
Nothing 4k, so I'd imagine that helps my situation a bit.
stray wind
@grave crest Look at Plugable's stuff. That's what I used when I was using a dock. I have USB-C displays with USB passthrough, so it eliminated the need.
grave crest
@stray wind I'll check them out, thank you 🙂
sleek quarry
at work i am using this - provided by them
https://www.myepico.com/en/products/type-c-hub-slim
never bothered to do the speed tests but work to display picture on "2k screen"
but in the HDMI + ethernet + usb + power passthrough feature set it comes real hard to shop
grave crest
Thank you @sleek quarry -- I'll check them out too! 🙂
sick adder
https://ebookclub.tor.com/ has some books for pride month, download before July 5
"Sisters of the Vast Black" sounds like something I might enjoy
rain ferry
Hi
short bone
hi
vital harness
nova galleon
Clearly an Apple schematic: https://discordapp.com/channels/327254708534116352/336571109430263816/716589663128649730
dusty citrus
Helo
still lion
dusty citrus
I new
sick adder
Back In Stock Notification Subscription for Raspberry Pi 4 Model B - 8 GB RAM
For a second I'm excited whenever I see this subject line, but oh .. it's not the back in stock notification, it's the verification that I subscribed
gusty warren
looking for a heat gun, anyone use these? or have a suggestion with more variety of tips?
burnt tendon
So I guess you are looking for heat gun tip tips.
So, those are the sorts of heat guns for big things like bending plexiglass or paint stripping, not surface-mount soldering sorts of things
late fulcrum
Something like this? https://www.adafruit.com/product/1869
gusty warren
That thing is very nice
It's the cost of 2 really nice soldering irons but still lol
late fulcrum
To me, "really nice" soldering irons are Thermaltronics and Metcal, which are considerably more expensive than that hot air station.
gusty warren
Hmmm
I'll have to look those up
I've got a hakko 888D? And a ts-100 which I think are both pretty nice lol
I'll look those up I'm curious why they cost $300+
I mean if you have an iron that will go from like 120-900F and everything, what else are they going to do for you
late fulcrum
The Metcal CV-5210 can detect whether you've made a good solder joint, but it'll set you back $900.
The Thermaltronics one heats and reacts very quickly, so won't overheat a tiny component but can dump plenty of heat to solder a large one.
sinful lark
Hypothetically, if I needed to squeeze a servo's pulse pin and I2C's clock pin into one, could I send multiple 1-2 millisecond pulses per 20ms period, and use the pulses for I2C clock?
crystal ore
It depends on the servo. Some of them will just do a low-pass filter on the signal and get an analog voltage out to operate from, in which case you have some freedom to play with the clocks, as long as the overall duty cycle is what you want. Other servos will be operating on digital logic and will be looking at all the edges to do pulse timing measurements.
late fulcrum
So, forming the pulses to correspond to the servo specifications, but also use them to clock I2C transactions? That's an odd use case, but may be possible, depending on if the I2C peripherals minded such a slow clock.
gusty warren
how does a soldering iron detect if you made a good solder joint? 💥
ocean sigil
@gusty warren it doesn't.
limpid wharf
@gusty warren You need to make sure it's shiny and cone-shaped.
gusty warren
well yes LOL
apparently that one has tech that does
and it lights up a green light in the handle when your joint is "good"
ocean sigil
can you post a link to it?
gusty warren
but it's $900
there's a video
it does lots of fancy stuff, and for that price, it should.
I think that is an awesome feature but I don't feel like it's something you really need with any kind of soldering experience.
my first 10 solders ever had shiny cone shapes.
ocean sigil
The intermetallic compound thickness is critical in the formation of a solder joint. Connection Validation (CV) evaluates the quality of the solder joint by calculating the intermetallic compound formation and provides closed loop feedback to the operator. CV provides feedback to the operator via the LED light ring integrated in the hand-piece.
gusty warren
it's not rocket science.
ocean sigil
I think that means it's magic 😉
gusty warren
yes
i'd have to get some anecdotal experience from someone that doesn't work for them about how well that tech actually works.
can't find much on youtube, probably because nobody is buying a $900 soldering iron.
ocean sigil
sorry -- just scrolled back to see the previous conversation...
gusty warren
haha
I'm all about buying nice tools but I feel like the only people that buy those things are companies.
I have a hakko 888D and a TS-100 and I feel like those are pretty nice and work great.
lot of people use cheap $20 irons.
late fulcrum
I wasn't really suggesting someone splash out the thick end of a thousand dollars on an iron, just replying to the "why are there expensive irons" question.
As in all engineering, it's a tradeoff, and the weights of the parameters vary by the user. For someone who's building stuff every day, a nice iron is more important than for someone who just solders a couple of components every few weeks. Similarly, some people have the means to drop serious cash on equipment, most of us don't.
gusty warren
yeah I was just wondering, I'm not averse to dropping coin on good stuff, you just have to find the point of diminishing returns. 😄
speaking of irons, does anyone know how important the ground wire is that comes with the TS-100? I mean the power supply has 3 prongs so I assume it's grounded, is the ground wire they give you supposed to be extra protection? it seems inconvenient haha.
late fulcrum
It's mostly protection for the circuitry you're soldering, to avoid static electricity damage.
gusty warren
ahhhh
seems kind of inconvenient to have hanging off of there and trying to use it, but it is what it is.
so I assume static electricity is created inside of the iron handle or might be.
gusty warren
apparently people solder without it and claim no issues, but yeah.
short pulsar
New Sega game units, $50 each with four games loaded per unit. Display is 1.15” diagonal.
https://www.theverge.com/2020/6/3/21278895/sega-game-gear-micro-games-list-price-magnifying-glass
For reference the Adafruit pygamer is $40 is hackable to build your own games or get some shared ones, connect to sensors or expand with a FeatherWing.
Neither of these has a hand crank but both of these are still cool to me.
idle thorn
Not sure where to ask this. I am looking for an alternative to purchase small boards. Things that Adafruit doesn’t stock or make. I have bought individual parts from Digi-Key, but I still use Amazon for stuff, but want to stop. An example would be little cheap can bus boards. Bluetooth audio boards (not a hat). Or tools, or rolls of wire.
late fulcrum
I'm fond of Pololu, SparkFun, BGMicro, Electronics Goldmine, and a few others.
stuck moth
++ pololu if you can. they've been struggling
idle thorn
I like Pololu. I think I have yet to order from them though. Will check those others too.
I forgot, I have one of their tiny zumo bots.
proven olive
I've had good results with the few pololu things I've got
late fulcrum
I have one of their balancing bots, as well as assorted voltage converters, motor drivers, and the like. Good kit.
crude trench
thanks for the tip(s) on Polulu, by the way
sick adder
He refused to fill an exit interview form for Fairchild and wrote only one line (exact quote): "I want to be RICH!" [51] https://en.wikipedia.org/wiki/Bob_Widlar
late fulcrum
He's one of my heroes. I still "widlarize" hardware from time to time.
sick adder
I can't quite identify with "I want to be RICH" but yes, to do work on my own terms...
In case you're wondering what madbodger meant, "He did practice widlarizing – methodically destroying a faulty component or a flawed prototype with a sledgehammer"
gusty warren
It would be nice to be rich, but I also want a good work life balance, and being rich often requires ridiculous amounts of hours.
burnt tendon
Would you say that Bob had a very amped-up personality?
jovial swift
Shooting for Master Punner?
late fulcrum
Two ways to become a millionaire: 1) luck, or 2) start as a billionaire and buy an airline.
gusty warren
Bob from what I read was a genius, and an alcoholic lol.
gusty warren
I love this guy lol.
gusty warren
he's always very enthusiastic
slow slate
good day everyone. i would like to ask for your help about my questions regarding inductors (basic fundamentals). is this the right place to ask?
short bone
@slow slate you can ask here
slow slate
1
2
apologies if my understanding is incorrect. i understand that because back emf opposes, it should counter the applied voltage (hence, the negative or downward spike of the inductor) as shown in figure 2.123. (the reference circuit is just an RL circuit hence VL and VR)
this is where i am very confused
3
in the graph above, the inductor spikes are proportional in direction of the applied signal (Vs), which is the opposite of what was shown in figure 2.123
practical experiments also show this result. so my question is why? since back emf opposes the applied voltage, then shouldn't it be negative to counteract the positive cycle of the voltage?
late fulcrum
Which ones are you referring to? VL?
slow slate
yup VL 🙂
figure 2.123 and the figure above seems contradicting to me... there's something i'm missing
late fulcrum
There are a couple of things going on here. The way I read figure 2.123, the voltage is in the same direction. However, that voltage isn't the counter EMF (which is indeed negative), it's the voltage drop across the inductor, which results from the counter-EMF making it appear that the inductor has more impedance, so it has a larger voltage drop.
slow slate
so the spike is actually the result of the counter emf. it makes sense now! thank you very much for that explanation, @late fulcrum! 🙂
potent lion
My first tattoo 🙂
stuck moth
@potent lion is it a specific circuit?
potent lion
Nope
stuck moth
neat!
sick adder
pearl vigil
Cursed image
proven olive
That's one way to connect an SD card.
Not necessarily one I'd use, but it is a way.
grave crest
Is that SD card trying to assimilate the Grand Central? Reminds me of the nanotube assimilation probes from the Borg....
onyx plank
voodoo
ocean sigil
look -- it's cloned itself onto the board....
sick adder
TFW the boards arrive after you're on to the next thing
Also TFW you notice the silk is wrong right after posting the photo
sharp jasper
Anybody know how I should setup a VM to test viruses in VMware player
rain ferry
Anybody know how I should setup a VM to test viruses in VMware player
@sharp jasper idk about testing viruses but I run VMs using VirtualBox
grave crest
@sharp jasper Playing with viruses is akin to playing with fire. It's not something that I'd recommend without an extraordinary amount of preparation and experience, and even then, I'd be against it.
There's very little...or anything...to be gained with a very high risk.
proven olive
There's really no "Safe" way to play with viruses, but at the very least I'd recommend an "Expendable" computer with no network connection to host the VMs. Anything that needs transferring can be done via USB drives, and I'd be wary of even those. If you're looking to play with Windows viruses, make sure the main computer runs some flavor of.... Not Windows. It's not a perfect protection, but it helps. Similarly, the USB that you use to transfer things will need to be sanitized somehow.
If you're looking to play with old viruses, like things that were on Windows 95, 98, XP, etc, then you're a little safer since modern AV should catch them, but even then. Expendable computer, no network connection at all. If something gets out, wipe the computer and start over.
grave crest
There are even viruses that can hide in the BIOS, surviving a system wipe. Those are rare, but not unheard of.
proven olive
Well. I presume if you're playing with viruses you're going to curate those viruses.
pearl vigil
Thats a good community reply, virtual machines are in theory a completely isolated virtual machine, but in practice there exists a whole community devoted to escaping secure enclaves, virtual machines, and containers like docker. Again we don't know exactly what you're playing with, but grab a wicked old thinkpad off ebay and air gap it is a good way to go.
burnt tendon
Yeah, there have been a lot of hypervisor escape attacks.
Like, I said some things about containers vs. hypervisors five years ago and may have triggered the complete field-day on hypervisor escape and corresponding lack of nearly as many interesting container escapes.
dusty citrus
in 9 years i have been blown apart online serveral times.
There is no peace or escape for exploit.
sharp jasper
I'm dual booting ubuntu. That should help. Thanks.
Also, couldn't I just cut it off from literally everything? I am going to be running a Linux host, and there are a lot of people who use VMware for virus testing
late fulcrum
I like to test viruses on scammers. I'll put a bunch of malware in a directory called "passwords" on a sandboxed VM, and give the "Microsoft tech support" scammers access to that.
late fulcrum
It's been a thing on and off for a while. I picked up some "Aura Interactor" gaming vests years ago, took the drivers out of them, and attached them to my couch for bass I could feel while watching movies and gaming. AdaFruit sells the transducers: https://www.adafruit.com/product/1784
potent lion
Does anyone remember when this was a thing?
@keen pendant It never was a real thing, but its still popular in sim racing
late fulcrum
You could do that with bipolar transistors or MOSFETs. The arrangement would depend on what sort of thing you were controlling.
keen pendant
I think it's pretty cool that that the lets the user feel the bass of music and delivers haptic feedback as well
dusty citrus
@late fulcrum ok ill find out more about the motor
keen pendant
If you were to buy something like this, would you need to buy it in bulk, or could you purchase only one, like it says?
crystal ore
You can indeed buy one. They get cheaper at larger quantities, but distributors are happy to mail you a box with one three-cent resistor if you want, heh heh.
keen pendant
got it, lol
late fulcrum
It's true: one person meant to order a few hundred resistors that cost less than 1 cent apiece, but inadvertently ordered just one, and DigiKey sent it to them.
pearl vigil
Yeah, lol, I just got three baggies with a single 0603 resistor, though I need extras so wasnt very smart
gusty warren
think i'm gonna finally make some bulk orders for cheap chinese automation stuff from allie
keen pendant
I'm thinking of getting 3 of these, but I'm not sure what the max milli -amps it can handle are
late fulcrum
On the order of 20mA.
cunning summit
bruh
elder tulip
hey skrt
dusty citrus
dude
elder tulip
can you don't
left bay
Please don't ping that
elder tulip
thanks
dusty citrus
bruh
golden siren
gritty ocean
Me brain
left bay
Amazed that's enabled here.
granite mesa
🏓
real falcon
<@&327289013561982976>
wise patrol
it's not enabled, he's trolling you guys
he's pinging you individually then doing the everyone ping
notice it's not highlighted
cunning summit
i know that
left bay
I haven't been here in months and yet I'm summoned.
scenic lily
@dusty citrus STOP PINGING EVERYONE
cunning summit
just stop pinging me
wise patrol
i'm talking to kdb
charred hinge
acrross multiple servers. just ban
modern gorge
sick gust
hushed lintel
main verge
aand blocked
modern gorge
who pinged?
potent blaze
funny, all I see now is "blocked message".
granite mesa
terrible mistake youve made
oblique torrent
alright wheres the ban hammer
wise patrol
ah he's not even deleting it, the mass mentions are just automatically cleared by the bot
neat
left bay
At least the mods are all getting pinged
solid bridge
haha
modern gorge
all u have to do is block him ez
short light
who is pinging everyone?
dusty citrus
Very rude
bronze merlin
1 blocked message- Collapse message
modern gorge
banned or left?
short light
@odd spade
real falcon
i dpnt bother with blocks, because how discord works with blocking truly suck
bronze merlin
this man really be offline
short light
blocked
left bay
Thought I was in offtopic, was in bots. Oops
real falcon
soft hound
they mass-pinged in a few different channels
granite portal
but why
scenic lily
@skrt
bronze merlin
biggo thankies
left bay
Digital hug only :)
crystal karma
someone forget to set the permissions?
bronze merlin
wait wat
hollow vine
i thought someone wanted to talk to me for once
native breach
Someone is spamming
real falcon
yah think its charactor limit.
native breach
He did it in the gta fivem server about an hour ago
bronze merlin
tf?
real falcon
if he is using @ single names for as many as possible then not everyone will be pinged
have to be single one as have to delete it after to troll
bronze merlin
how does this guy have nothing better to do, like sleeping
native breach
I just love how he has gotten me in multiple servers
real falcon
some people just need extra kick for night activities I guess
unique lion
Ping?
real falcon
guy have been banned.
small hull
I can recommend you guys to just disable DM's from big servers like this.
Just right click the server icon and go privacy settings, then disable direct DM's from server members
real falcon
it wasnt dm.
guy spammed everyone (or most of em) @, then deleted messaged and changed to @ everyone
spammed across few channels then .... hammer time
none as suitable song I guess, as stop! hammer time! for banning.
pearl vigil
Is there not a way in discord to block server DMs for your own user? I dont use discord much but I would think that would be a basic feature
sick adder
Next to the adafruit robot logo in the upper left there's a down-pointing arrow. click it, click notification settings, then make your choices.
it's also on mobile, but the location's different and I can't check it right now
@pearl vigil
real falcon
okay though dm is discord version of private message?
pearl vigil
Yeah, talking about @real falcons issue. For me I like DMs
sick adder
That's under "privacy settings"
sick adder
under your account there is an an overall privacy setting and then you can set it per server as well
what the person did about 5 hours ago was sending out messages in the public channels that mentioned large numbers of users.
real falcon
yep, then deletd it and faked everyone ding
sick adder
we have a bot, dyno, which deletes certain things like those mass mentions, but not before it pings everyone's phone or whatever
so it kept going until a mod banned them 😦
real falcon
yeah worked down list jeez
sick adder
we are likely to change the bot so that the user would also be "muted", so that only the first few messages would have appeared.
but the mod who would change the setting is on US pacific time so it'll be a few hours before we make and implement a decision.
small hull
@real falcon I know but disabling dms is good privacy practice and not everyone know that you can do it.
When trolls discover that the bot keeps em from trolling they will try dms instead
real falcon
ya though i keep it note me if dm, thats it, i dont enable email so on
bronze merlin
lmao can't believe I even thought @remote bobcatrt did that by accident. could he get like completely banned from Discord?
rats, sorry SK!
dusty citrus
idk what to do this virus has put everything into a huge collapse here.
No one knows what's going on the virus is just increasing spread and meanwhile jobs are in jeopardy.
our wallets are runnning dry
stuck moth
Hi all, bot has been updated to mute folks who mass mention
orchid zephyr
My username was “everyone” for a while, a long time ago. It messed up a few servers accidentally.
cyan umbra
Lol @orchid zephyr
small hull
Kinda reminds me of that german lady with 'null' for surname. Crashed airplane booking systems when she was buying airplane tickets.
rain ferry
I remember reading something about people using NULL for their license plates as well
safe token
sadly stats also point 2 x low level viruses in there
sharp jasper
Yeah. It was mostly PUPs PUMs, adware, and a few instances of malware.
stoic mulch
Random question but posting schematics here and stuff doesn't affect ownership/legallity anyway does it?
late fulcrum
I'm no expert, but my take on it is that posting something here constitutes public exposure, so copyrighted or proprietary material is probably not a good idea. Open source, publically available, or patented material should be fine.
dusty citrus
You own your own work.
ocean sigil
you may own it, but if you post it, you have shared it. No one is going to send it back..
What I mean is, if you are concerned about "owenership" don't post it.
gusty warren
anyone know how to do math in node-red function nodes?
sick adder
I had been having trouble with firefox on my computer not showing recaptchas. I finally figured out that it's plugin "yes script 2" which can cause Content Security Policy violations even when it is set to "no blocking" on the site you're visiting. Confirmed by a review on amo. https://addons.mozilla.org/en-US/firefox/addon/yesscript2/reviews/1489000/ Sigh, disabled.
dusty citrus
Chromium (Debian 10.x) seems to have new issues as well.
grave crest
@sick adder Did you consider that you actually might not be a human, as the recaptcha is attempting to determine?
dusty citrus
Firefox is actively being .. made less effective .. by efforts outside of Firefox developers, it seems.
sick adder
no, I can't access the secret robot internet either https://www.smbc-comics.com/comic/2013-06-05
dusty citrus
I use noscript.net with Firefox.
sick adder
Assuming that is the one that defaults to blocking all javascript, I'm not ready to make quite that big a trade-off at this time.
but yeah I've heard of it
dusty citrus
It allows global permissions so frequently visited sites aren't affected much.
Sites that throw a lot of junk at you are easier to contain.
sick adder
hasty quarry
Why don’t I buy goods at reasonable prices in countries with a less valuable currency, and then proceed to sell them for a ridiculous profit back here
Is this a thing people do?
idle lion
UPS seems to think that they teleported my Adafruit order to CA and back
grave crest
Comon, Scotty!
ocean sigil
Coffee is ready. Let the day begin...
sick adder
How often do you miscalculate volume and overflow? That looks very full
short pulsar
@red hull you have some competition: https://www.cnn.com/2020/06/11/tech/tamagotchi-on-wonder-garden/index.html
red hull
Hehe that’s actually one that has been release in japan
Everyone is mad because they really took out a lot of features
late fulcrum
I remember when there was a "Tomagothi" joke running around the internet and someone actually wrote a software implementation of it.
short pulsar
@ocean sigil I assume that is Turkish coffee. Looks intriguing but I feel like I would need to grow a mustache to filter the grounds out.
ocean sigil
I do have one 😉
@sick adder it foams up just when it is done. Have to watch carefully and remove from heat at the right moment. It is quite a mess if late as I have often experienced. Good excuse to clean the stovetop!
wind basin
In the recent new products YouTube video, @viscid folio was showing off some new sensors and their measurements being shown on a 128x64 OLED Featherwing. Is this a new product?, I don't see in the store.
umbral phoenix
Based on the color, I'd guess it's either a prototype (who knows if it will see the light of day as a product), or not Adafruit (...though I don't find any in search results).
Maybe we'll see it in a future #TopSecret 😉
I'd still love to see the 240x135 IPS TFT on a FeatherWing too 🙂
wind basin
Yeah, that too. But adding that 128x64 OLED to the featherwing line would be really nice, and you can't beat OLED's brightness. I can really use a couple more lines on a feather form 🙂
burnt tendon
At this point, I guess their reputation is on the line then.
idle lion
@ocean sigil looks awesome! I found a place in Boulder CO that had Turkish Coffee last time I was there so I finally got a chance to try it. Would love to get set up to make it at home!
dusty citrus
Swedish coffee uses eggshells I think.
(I don't think you drink them; they're supposed to activate something)
ocean sigil
@idle lion the proper pot (ibrik) makes a lot of difference! I use this coffee https://www.amazon.com/gp/product/B00JZXVT9Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 the cardamom makes it! Someday I'll try grinding my own but it has to be really finely ground.
stuck moth
@wind basin It's coming but not very soon. The protocol is a bit weird and will need some circuitpython core work to support.
sick adder
Achievement unlocked: a custom "github pages" generator that works from Actions. I had the "push to gh-pages" working for a long time, but figured out today the few steps to get it to happen from an Action. I just hope I got the condition right that controls when it happens
https://github.com/jepler/ProvenDelights/blob/master/.github/workflows/build.yml#L26
sick adder
huh TIL https://www.thespruceeats.com/egg-coffee-2952648 https://www.cooksillustrated.com/how_tos/6554-adding-eggshells-to-coffee-before-brewing
gusty warren
jovial swift
a very interesting project - and a total violation of the KISS principal 🙂
dusty citrus
@small hull Swedish-Americans sometimes make fairly strong claims about their cultural heritage that don't translate into practices commonly encountered in Sweden itself. ;)
small hull
@dusty citrus I see, so it came from an american with swedish ancestry 😄 Yeah as I said I don't think I have ever heard of it. The ones I know of that prepare the coffee in a special way is the utmost northerners that live close to Finland. They sometimes pour some salt in the coffee.
dusty citrus
Yeah. It's very difficult to remember when freely-international people will gather together online, and when the conversation suddenly becomes highly USA-centric, living here.
I've learned more about Sweden in the last 18 months (via YouTube) than in the entire rest of my life.
But these relatives of mine claim strong Swedish (American) identity, and it's a point of pride, with them.
Not a one of them speaks a dozen words in Swedish.
small hull
Well of course you must be proud when we have a king that likes to wear silly hats
dusty citrus
kvack 🦆
small hull
I mean how can you not feel pride when the international representative of your country of origin looks like this
gusty warren
What is wrong with him?
small hull
@gusty warren Aside from the fact that the european royal families have practiced inbreeding for several hundred years you mean?
No but on a serious note the king is not that bad. He doesn't have any real power which is very good, and he just likes to wear silly hats for some reason. Pretty harmless imo.
gusty warren
Well, if he has no real power then, let him be wacky.
rain ferry
Wow this is hilarious how have I not heard of this before
real falcon
me either. strange
wraith oyster
sick adder
Oh javascript, never change. wat = x => [x & 1, x & 2, x & 4] wat("5") Array(3) [ 1, 0, 4 ]
And of course "1e18" & ~0 is -1486618624 just as you would expect
crystal ore
Maybe I haven't woken up yet, but I don't immediately see what's weird about the wat example...
sick adder
oh I botched it. I meant to pass in the string "5", not the number 5. (now edited)
Always make sure that when complaining about something, you make yourself into a fool too 🙂 I love languages, they just all have such weird corners.
crystal ore
Heh heh, thanks.
Your instinct to write correct code was strong enough to override your fingers.
gusty warren
anyone know if this is any good? Is it loud? It looks like its probably a generic re-branded version of something else? https://www.circuitspecialists.com/csi3005p.html
crystal ore
I'm impressed that it comes with USB control. That's unusual for a lower-priced bench supply.
late fulcrum
I wonder if it's documented, as the software appears to be DOS-only.
orchid zephyr
Should I get a $20 oscilloscope off of wish.com?
Or maybe an $8 oscilloscope on eBay.
Seems fishy
late fulcrum
There are some cheap ones with LCD screens that work okay, but the user interface can be frustrating. There are also some deals to be had on eBay, but some are used and may need repairs (which is a great way to learn, but it can be tricky to debug an oscilloscope without another oscilloscope).
orchid zephyr
Should I get an oscilloscope
late fulcrum
It depends on what you want to do or learn. There are some things that are a lot clearer with an oscilloscope, but you can do a whole lot without one.
gusty warren
anyone used one of these? Looks pretty sweet.
https://www.aliexpress.com/item/4001053200176.html?spm=a2g0o.productlist.0.0.41292ec4MdATzk&algo_pvid=37ae4e2d-e1ed-4f1c-9778-0cf4100862db&algo_expid=37ae4e2d-e1ed-4f1c-9778-0cf4100862db-1&btsid=0ab50f4915921741295363793e50aa&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
crystal ore
Note that it's DC-DC only, so it needs another power source to run from wall current.
sick adder
@gusty warren I believe that eevblog has had several videos about these. If it's the one I'm thinking of, the general impression is it does what it says, more or less, and is much cheaper than "name brand" alternatives even once you include the cost for the enclosure & PSU. I've considered getting one, but the fact is that personally I don't do much that needs >5V these days.
https://www.youtube.com/watch?v=0qjLx_HsKUQ (note: some eevblog videos have language that's not suitable for all ages; I didn't review this one before posting)
gusty warren
I'm watching that video. 😂
I'm curious what a decent name brand one would be that is linear and goes to say 15v 5A
sick adder
then you can watch this one, though I think "RD TECH" may be unrelated to the RIDEN RDxxxx PSUs https://www.youtube.com/watch?v=Q2rvAoO-MIA
https://www.tek.com/pws2000-dc-power-supply Tek 18V 5A for $494 apparently
Rigol 30V 5A (160W max power) $473 https://www.rigolna.com/products/dc-power-loads/dp800/
I know I went down to Tek's cheap model but I'm surprised they're essentially even on price, I think of Rigol as being somewhere in the middle as far as name recognition vs price goes
late fulcrum
I'm with you on Rigol. I have their DP832 https://www.adafruit.com/product/2014 and it's not bad. I also have some serious Kepco lab supplies that probably cost a fortune new (I bought them as cheap non-working surplus and repaired them). You can actually see the Rigol in the background and a Kepco 6V 45A in the foreground here.
sinful lark
real falcon
goto 10
sleek quarry
@late fulcrum one of my irrational dream projects is to build a PC into old electronics "thing", that old power supply seems to fit the form 
late fulcrum
There are a few projects out there using PC supplies as bench supplies.
willow ruin
Any tips for keeping your hands steady while soldering?
stray wind
@willow ruin Brace against something. Table, etc. Or consider a third-hand helper device of some sort and use it to brace against. I find even holding a finger against something steadies the rest of my hand when needed.
late fulcrum
I would agree with that advice. Sometimes I'll put an object (small box, block of wood, etc.) of a reasonable size near what I'm soldering just to rest my hand/wrist on.
willow ruin
ALright, thanks. I'll try that.
zealous ermine
building a computer from scratch because i hate myself
this is the ALU, i have more parts that are done. all i have to do now is flash some EEPROMS with microcode, and get enough breadboards ha
late fulcrum
74181, classic. I like it.
zealous ermine
i'm making an open source emulator, and publishing my documentation if anyone wants a go at writing some assembly code!
oh also if kattni reads this, i'm the kid from 2-3 years ago who designed the ALU in logic.ly!
im still here, i just go to a makerspace every wednesday, so i can't do show and tell anymore 😦
burnt tendon
I feel like there ought to be enough hobyists for someone to resurrect the 2900 bit slice chips.
There isn't.
But I can dream.
zealous ermine
Yeah. Its a shame
late fulcrum
Or go all the way to the MC14500 1-bit CPU
A few vendors have 2901s in stock, looks like
zealous ermine
Woah
also, here is the full instruction set for my computer
INSTRUCTIONS: 20 total
00000 LDX; load ram value to X
00001 STX; load X to ram value
00010 LDY; load ram value to Y
00011 STY; load y to ram value
00100 LVX; load a value (0-15) into X
00101 LVY; load a value (0-15) into Y
00110 INX; incrament X
00111 DEX; decrament X
01000 CMP; sets all flags accordingly
01001 JMP; jump to ram address
01010 JXL; jump if X > Y
01011 JYL; jump if X < Y
01110 JEQ; jump if X = Y
01101 JNE; jump if X != Y
01110 JOF; jump if X = 10 overflow
01111 JUF; jump if X = 15 underflow
10000 JSR; jump to sub label
10001 RSR; return from sub (no label)
10010 NOP; do nothing
10011 BRK; halt the CPU
computer is 4 bits
crystal ore
You might want to try to squeeze in INY and DEY instructions too, so that you can more easily do things like add two numbers with an INX / DEY loop.
zealous ermine
yeah, i was thinking the same thing. it don't think it would be that hard to. i might once i build it
oh! also it can address up to 2k of memory!
late fulcrum
5 bit instructions does give you a bit of room to grow
So 4 bit data, 5 bit instructions and 11 bits of address?
late fulcrum
Seems reasonable to me.
zealous ermine
👌
late fulcrum
Do you have an assembler yet?
zealous ermine
nope, but i'm working on it. i'm programing it in C
late fulcrum
Nice. I was looking at the generic assembler at 8bitworkshop a while back and wondering if it would be hard to configure it for some other target
zealous ermine
now that's an idea!
zealous ermine