// #eevblog — 2021-10-31
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01:04:50 <TheDude> steve30, still here?
01:11:51 <steve30> yup
01:16:40 <TheDude> https://xdevs.com/guide/agilent_gpib_rpi/
01:16:42 <EEVBot> [Title] - xDevs.com | Setting up and using Agilent 82357B GPIB USB pod in RPi Linux
01:16:44 <TheDude> following this guide
01:16:52 <TheDude> at step 2 of raspberry pi setup
01:17:16 <TheDude> apt keeps telling me that it can not find the right package
01:17:34 <TheDude> I believe this is the one I need
01:17:35 <TheDude> https://packages.debian.org/bullseye/linux-image-5.10.0-8-rpi
01:17:37 <EEVBot> [Title] - Debian -- Details of package linux-image-5.10.0-8-rpi in bullseye
01:17:56 <TheDude> typing the exact name still doesn't work :(
01:21:38 <steve30> That's a newer kernel version. The article says to use an older version.
01:22:46 <TheDude> yeah, but it says that the problem is with older versions of linux-gpib
01:22:57 <TheDude> the newer version has that problem fixed
01:23:59 <steve30> oh, so you probably don't need to change the kernel then
01:24:28 <TheDude> oh, that simplifies things then :D
01:34:06 * electrohead awakens and points at random people
01:34:13 * T3sl4 spiderman memes electrohead
01:34:38 * electrohead um-ok's T3sl4
01:34:56 <T3sl4> https://i.imgur.com/1WU8ron.jpg
01:35:21 <electrohead> lol, goof
01:35:26 <electrohead> morning and stuff o/
01:37:17 <TheDude> \o
01:37:24 <electrohead> https://xdevs.com/doc/xDevs.com/linux_rpi.jpg
01:37:25 <electrohead> o.O
01:37:28 <electrohead> Q-tips?
01:37:37 <TheDude> yes
01:37:59 <electrohead> how to get cotton stuck in your connectors 101
01:38:21 <TheDude> they're used to softly press the bare wire to the inside of the barrel
01:38:33 <TheDude> no, cotton won't get stuck in there because of that
01:38:49 <TheDude> besides you can blow it out or use some tweezers if it would
01:39:17 <electrohead> or just toss some connectors/clips onto some wire, and poof
01:39:21 <electrohead> presto. lol
01:39:31 <TheDude> nope
01:39:47 <TheDude> this guy is a hardcore voltnut
01:39:57 <TheDude> thermoelectric voltages are not an option
01:40:25 <TheDude> so bare copper is pressed against the tellurium copper connector barrels for lowest possible thermoelectric effect
01:40:57 <electrohead> EEVBot: give coffee to electrohead
01:40:57 * EEVBot drowns electrohead in coffee
01:41:21 <TheDude> this guy is literally the most hardcore voltnut on the planet
01:43:14 <TheDude> uhh... is there a brainlet friendly way to get this https://linux-gpib.sourceforge.io installed on my raspberry pi?
01:43:15 <EEVBot> [Title] - Linux GPIB Package Homepage
01:43:57 <EEVBot> [Twitter] - eevblog - Shadow in the cloud wins the weird arse movie of the year award. Hit Girl fights a Gremlin, and then beast feeds, i… https://t.co/AolRPcxl7W
01:46:43 <electrohead> what kernel version are you running on your r.ip?
01:46:46 <electrohead> r.pi*
01:46:59 <TheDude> 5.10.0
01:47:50 <electrohead> wget https://sourceforge.net/projects/linux-gpib/files/linux-gpib%20for%203.x.x%20and%202.6.x%20kernels/4.3.4/linux-gpib-4.3.4.tar.gz/download -O linux-gpib-4.3.4.tar.gz
01:47:51 <EEVBot> [Title] - 302 Found
01:48:14 <TheDude> perfect, ty
01:48:53 <TheDude> I think I should be able to follow the guide after this
01:49:38 <electrohead> I'm reading through it right now
01:49:43 <TheDude> I just got confused because the guide makes you check out some specific branch which was needed back when that bug was still around
01:50:44 <electrohead> that's why I posted the link to sourceforge, mainly so you wouldn't have to possibly put up with recent updates in the svn repo, and encounter possible issues
01:53:32 <electrohead> I imagine you are using raspbian, yes?
01:54:24 <EEVBot> [Twitter] - eevblog - Shadow in the cloud wins the weird arse movie of the year award. Hit Girl fights a Gremlin, and then breast feeds,… https://t.co/RZ37M4RjyI
01:54:27 <TheDude> just regular debian
01:55:23 <TheDude> debian 11, to be more specific
01:56:23 <electrohead> ok
01:56:29 <Ampera> good morning
01:56:32 <Ampera> you swines
01:56:35 <Ampera> you pigs
01:56:37 <Ampera> you utter dogs
01:56:38 * T3sl4 pearls Ampera
01:57:00 * electrohead films
01:57:08 <TheDude> although pigs make great pets, I don't think they're a direct replacement for dogs
01:57:11 <Ampera> I washed my phone, and it made an awfully funny sound from the water left in the speaker when you sent that, T3sl4
01:57:17 <Ampera> (I get notifications about IRC messages on my phone)
01:57:20 * T3sl4 giggles
01:57:30 <electrohead> TheDude: are you following the guide currently, or need help with anything?
01:57:42 <TheDude> I could use some more help, yeah :D
01:57:55 <TheDude> okay, so I got the stuff from sourceforge
01:58:02 <TheDude> I untarred the file
01:58:14 <TheDude> and now there's two more tarballs inside, one labelled kernel, the other user
01:58:44 <T3sl4> did they never make a feather compressor as a replacement for gzip?
01:58:51 <T3sl4> "tarred and feathered" would be excellent
01:59:05 <TheDude> the readme mentions unpacking both and building and installing
01:59:28 <electrohead> T3sl4: lmao
01:59:48 <electrohead> TheDude: yeah, so "tar xvf <file>" on both of those files, then start with the kernel modules
02:00:39 <TheDude> alright, ty
02:01:02 <electrohead> also, before you start compiling away, do "depmod -a ; ldconfig"
02:01:19 <TheDude> I've done that before
02:01:25 <TheDude> out of curiosity, what does it do?
02:02:00 <Ampera> what do you get when you're fucked in the ass by a linux nerd
02:02:01 <Ampera> compiles
02:02:15 * T3sl4 golf claps
02:02:17 <TheDude> it's a trick question
02:02:22 <TheDude> linux nerds don't fuck
02:02:31 <TheDude> D:
02:02:37 <T3sl4> fine then
02:02:43 <T3sl4> what do you get when you wear a serial cable as a butt plug
02:03:21 <TheDude> uncomfortable
02:03:36 <T3sl4> well, yeah
02:04:33 <electrohead> depmod creates a list of module dependencies, and ldconfig configures dynamic linker run-time bindings
02:04:49 <electrohead> and, I don't fuck as much as I used to lol
02:05:02 * T3sl4 links electrohead with a serial cable
02:05:25 <electrohead> oh baby
02:05:37 * T3sl4 forces Ampera to log
02:06:47 <Ampera> you need to give me some wood first, treeboy
02:06:57 <T3sl4> it's LOG LOG LOG!
02:07:00 <electrohead> TheDude: that said though, just verify you have the dependencies installed, the kernel headers for your kernel version, and then just go to the kernel modules directory, run make, and it *should* compile without issue
02:08:20 <TheDude> alright, ty for now
02:08:32 <TheDude> I'll be back to bug you some more when I eventually get stuck
02:08:45 <electrohead> I just successfully compiled the kernel modules for x86_64 on kernel version 5.14.13
02:08:57 <electrohead> not a single error, hardly any warnings
02:09:19 <electrohead> sudo apt-get install build-essential texinfo texi2html libcwidget-dev tcl8.6-dev tk8.6-dev libncurses5-dev libx11-dev binutils-dev bison flex libusb-1.0-0 libusb-dev libmpfr-dev libexpat1-dev tofrodos subversion autoconf automake libtool
02:09:30 <TheDude> yeah, running this just now
02:09:39 <electrohead> oh ok, cool :)
02:09:40 <TheDude> a lot of stuff being downloaded :D
02:10:08 <T3sl4> what device goes to frodos? surely just a ring
02:10:18 <TheDude> if I manage to get a python script controlling an instrument this weekend running, I'll be super psyched
02:10:30 <T3sl4> oh wait that's not space dash
02:10:45 <TheDude> running this weekend*
02:10:51 <TheDude> good lord, that was horrendous syntax
02:11:01 * electrohead probes T3sl4 with a starlink dish
02:11:12 <electrohead> TheDude: I'll be psyched as well :D
02:11:16 <T3sl4> TheDude: i don't have a clue how one gets from that, to recompiling a kernel, but i haven't been following this conversation
02:11:32 <TheDude> https://xdevs.com/guide/agilent_gpib_rpi/
02:11:35 <EEVBot> [Title] - xDevs.com | Setting up and using Agilent 82357B GPIB USB pod in RPi Linux
02:11:51 <T3sl4> i did that this week with py3 and a script that talks com port to a AVR chip programming port, really slick
02:11:56 <electrohead> I actually still would like to either purchase or build a GPIB adapter
02:12:06 <T3sl4> only trouble i had was the fucking thing didn't have docs worth a shit
02:12:10 <TheDude> the genital GPIB controller takes a bit of effort to get working on linux
02:12:21 <T3sl4> lots of struggling with command line and what file format is required
02:12:50 <electrohead> T3sl4: did you make your own, or purchase an adapter?
02:13:00 <T3sl4> GPIB? made
02:13:12 <electrohead> via network or usb?
02:13:23 <T3sl4> i used a XMEGA (programmed with an ancient AVRISPMKII) and it does GPIB over serial
02:13:43 <TheDude> neat
02:13:45 <electrohead> oh nice
02:13:47 <T3sl4> there's versions for PIC(24??) and ARM too i think
02:13:57 <T3sl4> some of which use internal USB port to do the talking
02:14:06 <electrohead> I'd like to do something over my network, eventually
02:16:49 <T3sl4> they make GPIB Ethernet bridges, too
02:17:38 <T3sl4> oh, and to be clear, the thing i did was program a AVR chip via serial from python, the GPIB thing i made years ago
02:18:56 <TheDude> alright, something is being built just now
02:41:59 <electrohead> yeah that would be cool to get my GPIB devices on my network
02:42:11 <electrohead> TheDude: yay, how's it going?
02:44:11 <TheDude> figuring out what needs to done in the user tarball now
02:45:36 <electrohead> did you 'make install' the kernel modules/drivers?
02:46:11 <electrohead> for the user directory, this has the configure script
02:46:26 <electrohead> so: ./configure
02:46:27 <electrohead> make
02:46:29 <electrohead> make install
02:48:51 <TheDude> alright, it's building now
02:49:09 <TheDude> yeah, I did make and install the kernel stuff successfully
02:50:34 <electrohead> cool :)
02:51:21 <TheDude> okay, so this should be done now
02:51:41 <TheDude> now I need to set up the stuff that pushes the GPIB adapter firmware into the thing
02:52:22 <electrohead> I already looked at the firmware files, the link that is posted on that guide/site is the most recent
02:56:00 <TheDude> haha, no fucking way
02:56:19 <TheDude> pushing the firmware into the thing made the green leds light up :D
02:56:30 <TheDude> cool, progress
02:57:01 <T3sl4> https://i.imgur.com/CbMJyuk.jpg
03:00:06 <electrohead> lol
03:00:08 <electrohead> yay \o/
03:15:08 <coppice_> GPIB Ethernet bridges are very useful tools. They sell in quite large numbers
03:15:37 <coppice_> Its amazing how many serial to ethernet bridges are sold. They are seriously high volume products
03:15:38 <T3sl4> sticker price numbers, or quantity numbers
03:16:14 <TheDude> ha
03:16:32 <TheDude> I'd definitely like to have an ethernet-connected GPIB adapter
03:16:41 <coppice_> The ones I know of aren't cheap, but I think a lot of organisations just want to get all their instrumentation on a common ethernet medium
03:16:45 <TheDude> but I'd prefer not to shell out 500 bucks for one
03:21:44 <electrohead> I've come across projects that integrate the ESP8266/32 chips, but.. I'd rather have GPIB connected via ethernet, and not wireless
03:23:11 <coppice_> real GPIB is so slow and clunky, it costs very little to interface between that and ethernet
03:23:28 <electrohead> TheDude: how's the progress coming along? get everything full up and running?
03:24:28 <T3sl4> there's no shortage of STM32F4s with integrated MAC hardware, easy enough to build one with those
03:24:33 <T3sl4> ...oh wait, there is a shortage :^)
03:24:48 <TheDude> electrohead, struggling a bit now
03:25:06 <TheDude> so the guide mentions editing the gpib.conf file in /etc/
03:25:20 <TheDude> but it wasn't there to begin with
03:25:42 <TheDude> and also the thing isn't auto-loading the firmware on USB hotplugging
03:25:48 <TheDude> so I imagine something isn't working right
03:25:55 <coppice_> become a creationist
03:26:50 <T3sl4> "in the beginning, there was nothing. then linus created linux, and it was good"
03:27:37 <TheDude> in the beginning there was silence and darkness all across the earth
03:27:49 <TheDude> then came the wind and a hole in the sky
03:28:02 <coppice_> and some dude on the internet created /etc/gpib.com and instrument could talk unto instrument
03:28:19 <TheDude> https://www.youtube.com/watch?v=g4rlGog0XRc
03:28:20 <EEVBot> [Title] - Youtube: The Gods Made Heavy Metal
03:28:53 <electrohead> ./linux-gpib-user-4.3.4/util/templates/gpib.conf
03:28:53 <T3sl4> punk rock tried to kill the metal
03:28:57 <T3sl4> but they failed
03:29:07 <electrohead> TheDude: you can just create that file, if it doesn't exist
03:29:19 <TheDude> yeah, did that
03:29:29 * T3sl4 touch's electrohead
03:29:37 <TheDude> root@gpib-master:/etc# gpib_config
03:29:37 <TheDude> failed to configure boardtype: ni_pci
03:29:38 <TheDude> failed to configure board
03:29:38 <TheDude> main: Invalid argument
03:29:40 * electrohead gets touched
03:29:44 <TheDude> :(
03:31:58 <coppice_> I wonder what its like in semiconductor vendor customer engineering right now? "We need to come up with reference apps, and other ideas to sell more of these chips that people can't buy"
03:32:47 <electrohead> TheDude: what gpib device do you have, to confirm?
03:33:09 <TheDude> agilent 82357b
03:35:01 <electrohead> ok, so it's gpib to usb (only confirming)
03:35:12 <electrohead> I say that, because .. failed to configure boardtype: ni_pci
03:35:25 <electrohead> if it's a usb device, why are you using ni_pci?
03:36:44 <TheDude> I must have set up something wrong
03:36:52 <coppice_> I've got 488 problems, but PCI ain't one
03:36:55 <TheDude> https://ubuntuforums.org/showthread.php?t=2270802
03:36:57 <EEVBot> [Title] - [SOLVED] GPIB-USB-HS on 14.04
03:37:05 <TheDude> I think I might have a similar problem, reading through this now
03:37:18 <T3sl4> sounds like it defaults to, probably the most common card, but not one you happen to be using
03:40:46 <electrohead> TheDude: did you ever create /etc/gpib.conf?
03:41:40 <TheDude> https://pastebin.com/LMR0yMn8
03:41:41 <EEVBot> [Title] - root@gpib-master:/etc# cat gpib.confinterface { minor = 0 /* bo - Pastebin.com
03:41:41 <TheDude> yeah
03:41:46 <TheDude> this is the content
03:41:49 <electrohead> if so, rename/move the file to be safe (for now), and try to specify manually with arguments, of your device, with gpib_config
03:42:10 <TheDude> alright, will try that
03:42:40 <electrohead> gpib_config --help
03:42:46 <electrohead> will show all arguments for you
03:45:51 <TheDude> hey :D
03:45:59 <TheDude> it seems to have done something
03:46:55 Join: Nothing\ (~Shmendrick@cpe9050ca20a183-cm9050ca20a180.cpe.net.cable.rogers.com) to #eevblog
03:46:58 <Nothing\> heyo!
03:47:01 <Nothing\> anyone alive in here?
03:47:38 * TheDude ducks
03:47:41 * electrohead runs
03:47:48 * T3sl4 quacks
03:47:54 * electrohead films
03:47:59 <TheDude> something seems to be working, methinks
03:48:02 <electrohead> TheDude: what did it do?
03:48:08 <TheDude> let me hook up an instrument and test it out
03:48:13 <electrohead> wait
03:48:17 <electrohead> what driver did you specify?
03:48:25 <TheDude> the agilent one
03:48:31 <electrohead> hell yeah
03:49:20 <TheDude> I'll have to figure out why it didn't want to use the conf file, but that's a job for later
03:49:33 <TheDude> want to try to communicate with a GPIB device now
03:49:48 <electrohead> ahh
03:49:52 <electrohead> I see something
03:50:03 <electrohead> do me a huge favor
03:50:12 <electrohead> pastebin the output of "gpib_config --help" for me
03:50:43 <electrohead> well, either that, or spot what I have spotted, in the output of --help
03:50:44 <electrohead> :P
03:50:49 <TheDude> one sec
03:51:25 <TheDude> https://pastebin.com/xxMxAfXE
03:51:26 <EEVBot> [Title] - root@gpib-master:/home/gpib_firmware-2008-08-10/agilent_82357a# gpib_config --he - Pastebin.com
03:52:03 <electrohead> The default configuration file is /usr/local/etc/gpib.conf
03:52:04 <electrohead> :P
03:52:15 <electrohead> tada.
03:53:07 <Nothing\> oh, hey guys
03:53:10 <Nothing\> how you all doing
03:53:11 <Nothing\> also
03:53:17 * Nothing\ hugs all <3
03:53:32 * T3sl4 noogies Nothing\
03:53:39 <Nothing\> heh i just found a folder of pictures from my old cell phone the cops took which i thought i'd lost forever
03:53:53 * electrohead noogies Nothing\ as well
03:54:06 <Nothing\> i have idea where the hell they came from cuz they're on an SSD i certainly didn't have until at least 3 years after the fact
03:54:13 <Nothing\> jeeez guys
03:54:20 <Nothing\> nevermind male pattern baldness
03:54:28 <Nothing\> how about noogie pattern baldness
03:55:02 <Nothing\> ah sooooo many pictures
03:55:25 <Nothing\> i'm just trying to find a pic i took of this super beefy rectifier chip i found
03:55:53 <Nothing\> and i really wish i knew how to get a datasheet on it, but it has absolutely no identifying markings at all, except for the polarity markings for the DC output
03:56:14 <TheDude> haha
03:56:19 <TheDude> I have a bigger problem now
03:56:44 <TheDude> there indeed is some dickery with the thingamabob
03:57:01 <TheDude> I get the timeout error thing that the xdevs article mentions
03:57:05 <TheDude> :(
03:58:08 <TheDude> electrohead, how'd you find the right location for the gpib.conf file?
03:59:43 <TheDude> oh d'oh
03:59:45 <TheDude> now I see it
03:59:47 <Nothing\> here it is
03:59:49 <Nothing\> https://i.ibb.co/s6JFX5k/20211028-212942-1.jpg
04:00:00 <Nothing\> the front of it
04:00:04 <Nothing\> and the back
04:00:06 <Nothing\> https://i.ibb.co/XYdHXNg/20211028-213007-1.jpg
04:00:15 <Nothing\> see, not a single marking, save for + and -
04:00:34 <Nothing\> also for size comparison, it's roughly 1 square inch, maybe a tad bigger
04:00:42 <T3sl4> probably just a 10A+ FWB
04:00:56 <TheDude> uh
04:00:58 <Nothing\> FWB?
04:01:05 <Nothing\> and yeha for context, it came from a microwave
04:01:07 <TheDude> I just remembered I need to get to the supermarket today
04:01:12 <Nothing\> not sure if any of you were here when i mentioned that
04:01:18 <TheDude> tomorrow's sunday and monday is a public holiday
04:01:36 <Nothing\> TheDude, better get on it now and get it out of the way so you've got the rest of the long weekend to enjoy
04:01:50 <Nothing\> wait, you guys actually have a stat holiday for halloween?
04:01:58 <Nothing\> what country are you in, if you don't mind?
04:02:05 <TheDude> well, the shops close in like 2 hours, that's the real problem :D
04:02:15 <Nothing\> eep
04:02:23 <Nothing\> better get crackin
04:02:30 <TheDude> no, monday is the 1st and we have the day of remembrance of the dead
04:02:47 <Nothing\> ah, the rectifier's exactly 35mm
04:02:52 <Nothing\> so, 1.5in
04:02:53 <TheDude> basically people going to cemeteries and comparing each other's winter clothing collections
04:03:21 <TheDude> I stopped caring for this particular holiday a long time ago
04:03:43 <TheDude> we just clean up the grave a little bit a week before that and don't go near it after
04:03:55 <Nothing\> hrm i'm gonna assume you live in england from the time zone you're in
04:03:56 <TheDude> slovenia, btw
04:03:58 <Nothing\> ah
04:04:01 <TheDude> yeah
04:04:10 <Nothing\> huh, so halloween's a stat holiday in slovenia?
04:04:16 <TheDude> NO
04:04:24 <TheDude> we're not fucking celebrating halloween ffs
04:04:25 <Nothing\> or is there another holiday that coincides with halloween?
04:04:30 <Nothing\> yeah i didn't think so llo
04:04:41 <TheDude> jfc I just told you what the holiday was
04:04:46 <Nothing\> so plz, enlighten me. Seriously i'm curious now.
04:04:54 <Nothing\> oh you did? i'm sorry i must have missed that.
04:04:59 <Nothing\> let me read up
04:05:00 <TheDude> lol
04:05:29 <electrohead> TheDude: are you referring to the TIMEO error?
04:05:33 <Nothing\> ah, is this just for remembrance of the dead in general? or remembrance of fallen soldiers?
04:05:42 <TheDude> in general
04:05:47 <Nothing\> interesting
04:06:09 <Nothing\> here in canada we have a holiday coming up on the 11th called remembrance day to honour our veterans
04:06:33 <electrohead> you'll probably have to resort to checking out the latest code via svn, and recompile everything
04:06:39 <Nothing\> we all wear plastic poppy pins over our heart for the couple of weeks before and after the holiday
04:06:49 <Nothing\> as a tribute to those buried in flanders field
04:07:01 <Nothing\> where they have a lot of poppies growing on the graves
04:07:46 <Nothing\> and there was a famous canadian poet who wrote a poem about flanders field and the fallen soldiers there. So now we wear poppies to commemorate all of that.
04:07:58 <TheDude> yeah, just reading up on that
04:08:31 <Nothing\> ah my mum says the holiday you described is called all saints day
04:08:48 <Nothing\> i dunno if that's something we have here on a different day with a similar theme to it or what
04:08:53 <TheDude> canadian soldiers were involved in battles in belgium in ww1?
04:09:10 <Nothing\> yeah we fought heavily in WW1
04:09:20 <T3sl4> steve30: https://imgur.com/gallery/fkueHkn
04:09:21 <EEVBot> [Title] - "I'm like a Disney princess, but with cats" - Album on Imgur
04:09:24 <Nothing\> i didn't know about belgium. Usually you hear about the major battles in france
04:09:34 <TheDude> there were bloody battles near the area where I lived previously
04:09:54 <TheDude> during WW1
04:10:05 <Nothing\> TheDude, apparently there are vast areas of france that are still uninhabitable to this day because of unexploded ordinances
04:10:18 <TheDude> massive caves still in those hills
04:10:25 <Nothing\> yeah i was gonna say
04:10:41 <TheDude> and you can find all kinds of weaponry there still buried underground
04:10:44 <Nothing\> if you look on google maps, you can just see all of the craters from the ordinances that DID go off
04:11:02 <Nothing\> yaeh i was thinking it'd be interesting to search about an area like that with a metal detector
04:11:17 <TheDude> I know multiple people that do that for a hobby
04:11:23 <Nothing\> i've seen a couple of videos of people doing it, but they usually just find stuff like a button, or a cap off of a soda bottle
04:11:34 <TheDude> some even nuts enough to dig up full artillery shells and move them
04:11:40 <Nothing\> wow
04:11:52 <Nothing\> you'd think they'd have some specially trained group to do that
04:11:57 <TheDude> yeah
04:11:59 <TheDude> we do
04:12:11 <Nothing\> like the people who clear land mines out of places in 3rd world countries
04:12:15 <TheDude> but you have to be sane and actually call them if you find something like that with a metal detector :D
04:12:18 <Nothing\> the type of places the war amps help
04:12:26 <Nothing\> lol yeah
04:12:49 <TheDude> I'm talking about state-funded bomb squads that come and neutralize these sorts of devices
04:12:53 <Nothing\> i was just watching a video the other day about this old soviet lab that used to be on an island in the aral sea
04:13:03 <Nothing\> which, being the aral sea, it's now a peninsula
04:13:13 <Nothing\> but anyways, it was all abandoned decades ago
04:13:24 <Nothing\> but live anthrax and plague and all sorts of goodies were left behind
04:13:30 <TheDude> nice
04:14:26 <Nothing\> long story short, after decades of the soviet/russian government fiddle farting around, the US wound up paying for most of the cleanup and it's all been taken care of apparently
04:14:51 <Nothing\> but i was just thinking of that grignard island in the UK where they did that open air anthrax test
04:14:55 <electrohead> TheDude: you get any further?
04:15:08 <TheDude> https://en.wikipedia.org/wiki/Battles_of_the_Isonzo
04:15:10 <EEVBot> [Title] - Battles of the Isonzo - Wikipedia
04:15:12 <TheDude> electrohead, not yet
04:15:23 <TheDude> I'm now compiling a list of things that I need to buy from the store
04:15:27 <Nothing\> and the island wound up uninhabitable for decades until they went back and removed like the first meter of top soil and sprayed the rest down iwth formaldehyde
04:15:37 <TheDude> I'll get back to getting this thing to work after that is done
04:15:45 <TheDude> and after I've been to the shop, ofc
04:16:08 <Nothing\> there were people who were pissed off that the british government wasn't cleaning it up or taking any responsibility for any of it
04:16:40 <Nothing\> so these groups went out to the island, took soil samples contaminated with anthrax and mailed them to various politicians or put them in public areas etc
04:16:57 <TheDude> wow
04:17:00 <Nothing\> some samples did have anthrax spores, some didn't, but it was determined they all came from the island
04:17:31 <Nothing\> but yeah, after that started happening, surprise surprise, the politicians got their asses into gear and cleaned up the mess they left behind
04:17:53 <Nothing\> realizing how easily a terrorist group could get hold of contaminated soil and use it for nefarious purposes like that
04:17:57 <T3sl4> oh also Nothing\, completing my thought from like an hour ago https://i.imgur.com/kbnlROR.mp4
04:18:08 <Nothing\> haha really?
04:18:20 <Nothing\> hahaha
04:18:30 <TheDude> Nothing\, I hate how those battles are called "battles of the isonzo"
04:18:36 <TheDude> fuck the italian naming of that river
04:18:36 <Nothing\> FOOOL BRIDGE RECTUMFRIER
04:18:55 <Nothing\> lol were they?
04:18:58 <Nothing\> i didn't know that
04:19:04 <TheDude> it springs up in our country
04:19:09 <Nothing\> ah cool
04:19:31 <TheDude> and it only becomes isonzo after it crosses the border and flows the rest of the way into the adriatic sea
04:19:38 <TheDude> it's called motherfucking Soča
04:19:54 <Nothing\> lol
04:20:41 <TheDude> the territory where the vast majority of the fighting went down is in Slovenia
04:21:32 <Nothing\> that's sort of like today i saw a license plate that said CPPP on it and i told my mom it was a soviet plate jokingly and pronounced it as its russian pronunciation (esss ehr ehr ehr) instead of (see pee pee pee) like most people are tempted to pronounce it
04:21:49 <Nothing\> and i wound up giving her a crash course on cyrillic pronunciation
04:22:09 <Nothing\> or are you just talking about a battle thta was named after a place that it had nothing to do with
04:22:20 <Nothing\> i kinda lost your train of thoughts and formed my own
04:22:22 <TheDude> no
04:22:41 <TheDude> I'm naming the battles that historians refer to by the italian name of the river
04:22:49 <Nothing\> ah
04:23:08 <TheDude> even though the river springs in slovenia and the majority of the battles were fought in the territory of slovenia
04:24:21 <TheDude> welp, gotta go to the shop now
04:24:24 <TheDude> I'll be back
04:24:27 <TheDude> like terminator
04:28:56 * electrohead salutes
04:36:59 <rust_collector> Nothing\ then, what does the ess ess ess ahr mean?
04:38:25 <Nothing\> rust_collector, soviet socialist somethingorother russiasomething
04:38:29 <Nothing\> that's my guess
04:38:55 <rust_collector> okay
04:39:19 Part: rust_collector ([email protected]) from #eevblog (Leaving)
04:41:18 Join: arch ([email protected]) to #eevblog
04:42:07 * electrohead desolders arch
04:42:24 <arch> =(
04:43:50 <arch> T3sl4, you around?
04:45:24 <arch> nvm ill be back later
04:45:27 Quit: arch ([email protected]) Quit: Leaving
04:48:34 <electrohead> I was just helping him out :/
04:48:44 <electrohead> he seemed stuck to the wall lol
04:49:33 <electrohead> https://www.youtube.com/watch?v=_U0Z7gauS2c
04:49:34 <EEVBot> [Title] - Youtube: The Worst Tomahawk Ribeye Ever Made Sausage
04:55:07 <electrohead> I am appalled at this.
05:16:35 <Nothing\> oh no
05:16:41 <Nothing\> i got a text message
05:16:50 <Nothing\> apparently there's a problem with my amazon account
05:17:20 <Nothing\> and i have to go amazaonverificatoncenter.com spelled that exact same way
05:17:54 <Nothing\> i just replied "jai hind" to let them think i'm indian and know what the scam is
05:21:28 <Nothing\> blech i got a $1 candy cane chocolate edible from the dispensary while i was there and i'm still burping candy cane
05:21:35 <Nothing\> and that was like 4 hours ago
05:22:07 <Nothing\> was only 10mg so i don't even see the point of it, but it was tasty anyways
05:22:44 <Nothing\> by comparison, oral tends to be weaker than smoked and i usually take 100-150mg when i use cannabis products
05:22:50 <Nothing\> thanks to tolerance
05:42:53 <Nothing\> man, the bugatti chiron has a damn nice interior
05:42:58 <Nothing\> and weird a/c controls
05:43:26 <Nothing\> https://images.hgmsites.net/hug/bugatti-chiron-super-sport_100794677_h.jpg
05:43:49 <Nothing\> they look like a series of cigarette lighters or throttle chokes
05:45:21 <TheDude> hello
05:45:32 <T3sl4> wb
05:45:48 <TheDude> this took more time than anticipated
05:45:53 <Nothing\> 'ello 'ello 'ello
05:45:57 <TheDude> came back with the groceries
05:45:59 <Nothing\> wots all this then?
05:46:18 <TheDude> and when I was putting a bag of peppers in the fridge, I noticed that it was leaking liquid
05:46:25 <TheDude> ... one of the peppers had gone bad
05:46:34 <T3sl4> ew
05:46:35 <TheDude> had to throw that away
05:46:39 <TheDude> take the trash out
05:46:48 <TheDude> and clean the nastiness
05:46:53 <TheDude> so that took some time
05:47:16 <TheDude> ... and I inspected the peppers when I was at the supermarket, but didn't notice the bad one
05:47:21 <TheDude> buh
05:47:30 <T3sl4> coincidentally, i also did the dishes
05:47:51 <T3sl4> which wasn't much, because i'm in the habit of reusing one dish that never gets dirtier than i leave it
05:48:11 <T3sl4> but i use things from time to time, so what was there, had been sitting for, you know, some months
05:48:36 <T3sl4> detergent only goes so far, i had to add some lye to the dishwater to deal with the stickier ones
05:52:19 <T3sl4> ....buh.
05:58:57 * electrohead soaps T3sl4
06:05:26 <Nothing\> man
06:05:30 <Nothing\> so many games to play now
06:05:44 <Nothing\> but only enough attention/time to play final fantasy iv still
06:06:01 <Nothing\> i'd like to finish at least 1 of the 4 playthroughs required to 100% it before i move on to another game
06:06:19 <Nothing\> and i bought metroid: dread 2 nights ago
06:07:04 <Nothing\> plus there are a bunch of halloween updates for my games i already have, like realms of magic
06:21:52 * Ampera hugs Nothing\
07:08:31 Join: arch ([email protected]) to #eevblog
07:09:39 <arch> is it's possible to get a negative voltage reference to a positive reference voltage without too many parts?
07:10:24 * T3sl4 taps arch on the shoulder opposite the side he's standing
07:10:36 * arch looks up
07:10:42 <arch> huh, must have been the wind
07:11:00 <TheDude> uh
07:11:01 <T3sl4> just use an inverting opamp?
07:11:19 <TheDude> just watched a video from a youtuber that filmed himself paying at a cash register
07:11:48 <TheDude> ... his card number is quite visible in it
07:11:59 <T3sl4> charge it
07:12:23 <TheDude> would it be considered retarded if I messaged him telling him to maybe change his card, since he fucked up?
07:12:40 <TheDude> you can see all but 2 digits of his card
07:12:56 <arch> buy some hentai off his card
07:12:56 <TheDude> and even those 2 digits can be very easily deducted
07:13:06 <TheDude> there are 4 possible numbers
07:13:09 <T3sl4> easy enough to solve by checksum
07:13:12 <TheDude> yes
07:13:29 <TheDude> also the very bottom of the two digits isn't perfectly covered
07:13:35 <TheDude> so you can see that both digits are wide
07:13:58 <TheDude> and that excludes all combinations that have either 9, 7 or 4 in them
07:14:07 <TheDude> because those are narrow at the bottom
07:14:20 <TheDude> so 4 possible combinations in total
07:14:34 <TheDude> so yay or nay on messaging this guy?
07:15:19 <arch> maybe he used a deactivated cc
07:15:30 <TheDude> ???
07:15:32 <arch> and used special effects
07:15:35 <TheDude> he paid for stuff with it in the video
07:15:36 <arch> or paid cash
07:15:53 <arch> might be a fake play or some shit
07:16:48 <TheDude> or, the more realistic possibility of him fucking up and posting something without thinking much
07:43:02 <arch> what is the purpose of R5 and C11 in parallel? https://i.imgur.com/DSDdAE8.png
07:43:10 <arch> at the opamp
07:44:03 <TheDude> R7+R8 in combination with R5 define the gain of the opamp
07:44:23 <TheDude> C11 serves as the bandwidth limiting
07:44:38 <arch> ooh
07:45:08 <arch> hmm, that R8 i think they just use it to inject a signal for bode plot generation
07:45:33 <TheDude> okay, yeah
07:45:56 <TheDude> it's going to have a negligible effect on the gain compared to 40k or R7
07:46:05 <TheDude> I didn't even look at the value, I just saw them in series
07:49:48 <arch> and correct me if im wrong: the reason they used a gain of 1/4th, is because the vcc of the opamp is 6.9V, but their output voltage is -12V. if they did a unity gain, it wouldn't work as the uppper limit of the vcc is 6.9V?
07:50:04 <arch> so they would need a 12V on the vcc?
07:50:30 <arch> well, more than 12V since most opamps can't go fully rail to rail?
07:52:20 <TheDude> no reason to make it unity gain
07:52:46 <TheDude> because you'd need to scale that voltage down anyway to feed it back into the switcher
07:54:57 <arch> true
08:11:13 <T3sl4> arch: there's another amp in the chain, why waste an opportunity?
08:11:44 <arch> T3sl4, which amp are you referring to?>
08:11:45 <T3sl4> you can reduce it to a reference value, and everything is just ratios from the usual
08:12:00 <T3sl4> U2 is (clearly?) the extra amp in the chain
08:12:18 <T3sl4> as far as U1 is concerned, it thinks it's running a, whatever, 2.5V boost or something
08:12:51 <T3sl4> it doesn't need to know about the topology past the SW pin, or what the actual output is, U2 just converts that back to a positive normalized voltage for feedback
08:12:51 <arch> i know that. i was just wondering if the reason they reduced the gain had to do more with the vcc limitations, or something else
08:13:23 <arch> since the vcc pin on U1 says 6.9V
08:13:50 <T3sl4> i don't see what 6.9 comes from, guessing it's aux somewhere else
08:14:07 <T3sl4> but yes, you can't have gain too high, you can't keep increasing R4 and R5 together forever
08:14:09 <arch> actually that LM5001 has a 6.9V bias supply (that vcc pin)
08:14:25 <T3sl4> is that what it is? ah, yeah
08:14:52 <arch> cool. that answers my questions. thank you both T3sl4 and TheDude
08:15:00 * T3sl4 headpats arch
08:15:20 <arch> im guessing using a LM358 is a bad idea since it's slow af? i do have TL072s, the fastest opamps i have currently
08:16:17 <TheDude> well, the BW of the opamp in that circuit is just 160kHz
08:16:57 <T3sl4> anything will do that has the specs needed
08:16:59 <arch> damn, they went overkill on that opamp. it's rail to rail, high speed
08:17:13 <TheDude> I hope you noticed that there's a shitton of useful notes around that schematic
08:17:13 <arch> or maybe just trying to sell people that
08:17:31 <arch> o yea
08:17:43 * arch puts glasses on
08:37:08 Quit: coppice_ ([email protected]) Quit: Konversation terminated!
08:49:29 Quit: Nothing\ (~Shmendrick@cpe9050ca20a183-cm9050ca20a180.cpe.net.cable.rogers.com) Quit: Leaving
09:01:47 <arch> yay or nay? i used a zener for uvlo https://i.imgur.com/XQpMix5.png
09:02:21 <DHess_US> Should work.
09:02:52 <arch> kewl
09:03:07 <T3sl4> yup
09:04:04 <arch> two items TBD: current sense resistor and the bandwidth limiting C9 cap
09:04:14 <TheDude> reeeeee :(
09:04:30 <T3sl4> and L?
09:04:37 <TheDude> tried pulling the freshest linux-gpib version
09:04:44 <TheDude> doing the whole build and dance
09:04:44 <T3sl4> not sure if that's calculated or placeholder
09:04:49 <arch> placeholder
09:04:50 <TheDude> and I'm still getting the bloody timeout :(
09:05:18 * T3sl4 calms TheDude with a fluffy kitten
09:05:22 <arch> im sure 10u should be enough though. it's operating at 500khz, pretty high freq. and low power, 25W
09:05:28 * TheDude sads anyway
09:05:57 <T3sl4> arch: more likely it should be smaller, but depends what the ctrl needs
09:07:02 <T3sl4> or maybe it's about right, whatever it is
09:07:03 <arch> that controller is voltage mode, so im not sure if im going to have trouble with the comp
09:07:12 <arch> it is internally compepnsated
09:07:38 <arch> 1A gate driver, which is pretty good
09:07:52 <arch> https://www.taiwansemi.com/assets/uploads/datasheet/TS19375_C12.pdf
09:15:07 Quit: arch ([email protected]) Connection closed
09:37:20 <TheDude> welp, I've had enough for one day
09:37:24 <TheDude> cheerio, lads
09:37:38 <T3sl4> o/
10:37:03 Join: Tezzers| ([email protected]) to #eevblog
10:49:39 Join: arch ([email protected]) to #eevblog
11:10:24 <arch> got a few of my work buddies into PCB design hehe. we're doing some simple shit right now. 555 timer astable 2-led blinker :D
11:13:08 <arch> i taught em basic kicad, so they are good on basic schematics and pcb layout
11:40:28 * electrohead solders arch back together
11:41:28 <EEVBot> [Twitter] - eevblog - WTF The solar installers put the mains cable UNDER the rafters. We had a bit of a saggy gyprock roof at the time, b… https://t.co/6Xk3SdU0ej
11:48:46 * arch pours soda and mentos down electrohead's throat
11:56:06 <electrohead> wooo! I'm a fountain!
12:07:32 <EEVBot> [Twitter] - eevblog - NEW Video on EEVblog2! Solar Install Wiring FAIL https://t.co/Msf8fRGjzb
12:30:17 <T3sl4> https://i.imgur.com/R6PCTrt.jpg
12:33:11 <electrohead> yes.
12:34:37 Quit: arch ([email protected]) Ping timeout: 121 seconds
12:37:10 Join: steve30000 ([email protected]) to #eevblog
12:37:23 Quit: steve30 ([email protected]) Ping timeout: 121 seconds
12:37:32 Join: arch ([email protected]) to #eevblog
12:38:15 <electrohead> https://twitter.com/Foone/status/1454230585933631488
12:47:12 <T3sl4> bahahaha
12:53:05 Join: rust_collector ([email protected]) to #eevblog
12:56:09 Quit: rust_collector ([email protected]) Quit: not being here
12:57:18 <electrohead> I love the end result of him playing never gonna give you up
12:58:43 <T3sl4> it's gotta be a rick roll :)
13:05:38 <electrohead> yeah lol
13:15:14 Quit: TheDude ([email protected]) Ping timeout: 121 seconds
13:15:49 Quit: Tezzers| ([email protected]) Ping timeout: 121 seconds
13:28:07 Join: Tezzers| ([email protected]) to #eevblog
13:57:10 <EEVBot> [Twitter] - eevblog - Q: Is there a 7kW AC EV charger available that integrates with your solar monitor to adjust the charge rate to only… https://t.co/GJ2c9Non3f
13:58:54 <EEVBot> [Twitter] - eevblog - RT @AvidCommentator: 'I’m A Twenty Year Truck Driver, I Will Tell You Why America’s ‘Shipping Crisis’ Will Not End' This article is an exc…
14:25:00 <EEVBot> [Twitter] - eevblog - Thread. Cleaning out the roof storage after 17 years. What will we find... https://t.co/ABoxDh7HXp
14:26:45 <EEVBot> [Twitter] - eevblog - https://t.co/IRiZA7N19I
14:26:45 <EEVBot> [Twitter] - eevblog - Look at all this memory! https://t.co/fRnbWW5T0E
14:30:13 <EEVBot> [Twitter] - eevblog - It's like an archeological dig...
14:31:57 <EEVBot> [Twitter] - eevblog - Some still useful, some not... https://t.co/N7ti62lANj
14:33:42 <EEVBot> [Twitter] - eevblog - None of that Altium rubbish! https://t.co/nr9EwQIDOc
14:35:26 <EEVBot> [Twitter] - eevblog - Maybe a tad out of date? https://t.co/99Qh58c1zb
14:36:06 <T3sl4> dave's sure on a bender
14:37:10 <EEVBot> [Twitter] - eevblog - State of the art. https://t.co/bv4NAXv9mz
14:38:43 * steve30000 curls up on T3sl4's lap
14:38:55 <EEVBot> [Twitter] - eevblog - Advance Bank anyone?
14:39:13 * T3sl4 grabs a duvet, makes a steve30000urrito
14:40:21 <steve30000> :)
14:40:24 <steve30000> *purr*
14:40:39 <EEVBot> [Twitter] - eevblog - Advance Bank anyone? https://t.co/zxityloIB7
14:40:39 <EEVBot> [Twitter] - eevblog - It's up to date! https://t.co/LWEpumMpuM
14:51:07 <EEVBot> [Twitter] - eevblog - https://t.co/BqYZHKi60q
14:52:52 <EEVBot> [Twitter] - eevblog - I wonder which ones... https://t.co/HQ4SApoUgG
14:52:52 <EEVBot> [Twitter] - eevblog - https://t.co/4kK12lWbCS
14:52:52 <EEVBot> [Twitter] - eevblog - Programming bonanza! https://t.co/UUY3DTHGS3
14:54:36 <EEVBot> [Twitter] - eevblog - This used to compile code tight-as https://t.co/ye9KRReIDa
14:54:36 <EEVBot> [Twitter] - eevblog - I wrote PC based oscilloscope software in this. https://t.co/s2Rw8FZwEq
15:01:33 <EEVBot> [Twitter] - eevblog - https://t.co/daZ8ZOiZqE
15:03:17 <EEVBot> [Twitter] - eevblog - And the rest of the boxes, 8 of them, were Mrs EEVblog's
16:05:20 Quit: arch ([email protected]) Ping timeout: 121 seconds
16:41:30 Quit: Tezzers| ([email protected]) Ping timeout: 121 seconds
17:17:55 Join: Tezzers| ([email protected]) to #eevblog
17:42:09 Join: watcher ([email protected]) to #eevblog
17:42:26 <watcher> howdy partners
17:42:40 <watcher> onya Halcyon
18:18:58 Quit: watcher ([email protected]) Ping timeout: 121 seconds
19:11:49 Quit: MRiddickW ([email protected]) Ping timeout: 121 seconds
19:52:06 Quit: Teeed_ ([email protected]) Ping timeout: 121 seconds
19:52:40 Quit: Meroje ([email protected]) Ping timeout: 121 seconds
19:52:43 Join: Teeed ([email protected]) to #eevblog
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20:14:27 <Halcyon> Fuck I'm tired
20:14:38 <DogWomble> OK if anyone wants to hear myself and Halcyon blather on about retro gaming soon - https://geekjabber.com/geekjabber-live-episode-5/
20:14:41 <EEVBot> [Title] - GeekJabber Live! – Episode 5 – GeekJabber
20:30:56 * steve30000 sees something about a demon kitty :p
20:31:32 <Halcyon> \o/
21:06:20 <steve30000> Halcyon strikes me as the kind of person who would like demon kitties :)
21:06:24 Nick: steve30000 is now known as steve30
21:08:47 <Halcyon> That is me done
21:08:52 <Halcyon> I am about to fall asleep
21:09:01 <Halcyon> That took so much effort not to sound completely buggered
21:09:01 <DogWomble> hopefully you enjoyed the show steve30 :)
21:09:08 <steve30> yup
21:09:27 <DogWomble> yay :D
21:09:40 <DogWomble> i'm jsut reencoding it now ready for people to download
21:14:46 <hsn> hello nerds
21:18:56 <hsn> i got someone asking me if he can put DC power supply near DB (distribution panel) in his house .. i told him i dont know if spikes = more there and need more reliable power supply / isolation voltage / EMI or not ... was i wrong ? or normal AC/DC from power outlet will serve good
21:59:03 <hsn> seems like there is some sort of OV catagories .. CAT II and CAT III power supplies
22:20:01 <DHess_US> Demon kitties? Is there another kind?
22:22:27 <DHess_US> https://i.imgur.com/Lt1mZnH.jpeg
22:37:45 <steve30> meow
22:53:13 * electrohead yawns and waves
23:22:30 Quit: MrMobodies ([email protected]) Ping timeout: 121 seconds
23:22:47 <DHess_US> https://imgur.com/gallery/j5mRWfe
23:22:48 <EEVBot> [Title] - It is weird and spooky - Album on Imgur
23:23:47 Join: MrMobodies ([email protected]) to #eevblog
23:25:02 Join: TheDude ([email protected]) to #eevblog
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