// #eevblog — 2020-10-03
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00:00:07 <electrohead> what goes up, but doesn't come down? your age.
00:00:10 * electrohead runs
00:00:11 <Ampera> I don't have a driver's license nor insurance ora registration.
00:00:38 <Ampera> Age is just a number.
00:01:24 <Some_Person> Ampera: I learned that lesson first-hand. In some ways, my current personality is closer to when I was a kid than when I was a teenager. I'm just less stupid.
00:01:40 <Ampera> I don't have a personality.
00:01:59 <Ampera> I am a product of what happens when you let a child unlimited access to the internet unsupervised for years.
00:02:10 <Ampera> I am simply a collection of references, tropes, and jargon.
00:02:11 <Some_Person> Ampera: I grew up with that as well
00:02:25 <EEVBlog> New EEVBlog Tweet: NEW EEVblog Video! EEVblog #1340 - New Tesla 4680 Battery Cell EXPLAINED https://t.co/FfiwNROVnj
00:03:24 <Ampera> woah this is neat https://en.wikipedia.org/wiki/DESQview
00:03:27 <Ampera> I should experiment with it
00:07:14 <electrohead> https://winworldpc.com/product/desqview/desqview-x-2x
00:09:04 <electrohead> I just downloaded all of the versions via that site
00:09:08 <electrohead> thanks for that, Ampera
00:09:11 <electrohead> lol
00:09:28 <Ampera> oh nice
00:09:35 <Ampera> I'll have to try it out on my 486 with a NIC
00:11:47 <electrohead> I haven't used DOS in so long
00:12:26 <Ampera> I really need to get my 486 up and running again. I have a new super skookum VGA capture card which should be able to handle any mode it can produce
00:12:38 <Ampera> even something stupid like 1280x1024@43i
00:18:47 <NeroTHz> apparently I can have a for-free portfolio through my adobe subscription
00:22:16 <K> a portfolio of what?
00:22:21 <NeroTHz> photography
00:22:58 <Ysjoelfir> NeroTHz is a well known nude photography model
00:23:10 <Ysjoelfir> didn't you know, K?
00:24:31 <K> ah.
00:24:34 <K> i did not
00:27:27 <Ysjoelfir> also, I'm on my way home. cu later all
00:27:40 * Ysjoelfir flees quickly before NeroTHz notices
00:29:33 <K> cyas
00:30:47 Join: TheDude ([email protected]) to #EEVblog
00:59:12 <mb> I heard, he is one of the actors in "Eyes Wide Shut"
00:59:22 <mb> :D :D
01:02:59 Quit: mb ([email protected]) Quit: Leaving
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01:10:48 <Some_Person> I used to know the guy who runs winworldpc.com
01:11:02 <Some_Person> He asked me once if I was interested in running a mirror, but I declined
01:13:20 Join: Polesch ([email protected]) to #EEVblog
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01:48:35 <hsn> Ysjoelfir spotted https://photos.app.goo.gl/GthUXTYvHbnKVvXC8
01:49:09 Join: spark_gap ([email protected]) to #EEVblog
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01:56:24 <hsn> https://youtu.be/58kEzTpPzS0
01:56:36 <hsn> car drone
02:03:26 <NeroTHz> ffs the doctor took blood samples today
02:03:34 Join: jackbrown ([email protected]) to #EEVblog
02:03:41 <NeroTHz> I swear taking off the tiny little bandage they put on the puncture hurts more than the actual needle taking blood
02:05:43 <hsn> https://photos.app.goo.gl/bXi5YPWi9UHWUKVS6
02:06:33 <hsn> NeroTHz they press hard huh
02:17:36 Quit: TheDude ([email protected]) Quit: Leaving
02:39:30 <clarkos> I've seen that image before, classic.
02:41:13 Mode: (by ChanOP) +o Ysjoelfir
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03:17:13 <NeroTHz> It´s also not applicable in the EU I think
03:17:25 <NeroTHz> huh, seems like Arri Signature Zooms are more affordable than I thought
03:20:04 <NeroTHz> just 75k for a 65-300 mm zoom
03:35:39 Quit: spark_gap ([email protected]) Connection closed
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03:37:27 <NeroTHz> I hope nikon does well with the Z6II/Z7II
03:37:31 Quit: jackbrown ([email protected]) Ping timeout: 121 seconds
03:37:37 <NeroTHz> I might jump ship to canon or sony else
03:40:29 Quit: spark_gap ([email protected]) Ping timeout: 121 seconds
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04:52:32 Quit: NeroTHz ([email protected]) EOF from client
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05:36:54 <electrohead> o/
05:39:36 * T3sl4 hugse electrohead
05:51:36 * electrohead hugse T3sl4
05:51:50 <T3sl4> with both hands, of course
05:52:57 <electrohead> lol
05:59:38 <T3sl4> https://i.redd.it/x6umvibmtnq51.jpg
06:11:25 Join: Chipguy ([email protected]) to #EEVblog
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06:34:30 <coppice> NeroTHz: the problem is correctly predicting who will be the last man standing
06:41:07 * electrohead tries to stand
06:51:50 <T3sl4> i stand less than i should. i under-stand.
07:45:57 <rust_collector> mornings
08:03:21 * T3sl4 returns from biking to the store
08:03:43 <rust_collector> awww
08:57:02 <rust_collector> I like how no one has anything to say, after you did that
09:08:58 <electrohead> I was at my girlfriend's place, am back home now
09:09:09 <rust_collector> uh huh.
09:10:07 <rust_collector> say hi to miss girlfriend some time
09:14:25 * T3sl4 cracks open a cold one with rust_collector and electrohead
09:14:48 <rust_collector> WHEEE!
09:15:04 <rust_collector> time for mre coffee
09:15:15 <rust_collector> more... not mre
09:20:04 <electrohead> we say hi :)
09:20:42 <rust_collector> good for you
09:21:23 <rust_collector> hmm, I should....
09:21:56 <rust_collector> I have a cup, with a speaker taped to the top, and a little amplifier module hanging out the side.
09:22:13 <rust_collector> It was assembled pretty quickly
09:22:34 <rust_collector> I think I should take it apart, because I think there is still some coffee in the cup
09:32:17 Quit: spark_gap ([email protected]) Connection closed
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09:48:12 <rust_collector> http://www.technoblogy.com/show?TV4
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09:48:30 <rust_collector> that is a very small terminal
09:50:49 Quit: spark_gap ([email protected]) EOF from client
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09:57:13 <T3sl4> cute
10:03:30 <rust_collector> mmm yep
10:57:15 Join: Guest|4657 ([email protected]) to #EEVblog
10:57:26 <Guest|4657> Hi
10:58:54 <Guest|4657> do, One of you guys think you can help me Diagnose my Oscilloscope, Its acting extremely odd, And I'm not experienced enough to figure it out
10:59:29 <steve30> Maybe... depends what's wrong with it
11:00:32 <Guest|4657> If I touch the Probe to my Skin, it reads some 1v ac waveform
11:01:48 <steve30> That sounds normal. It'll just be picking up noise. Possibly from the mains supply.
11:02:47 <rust_collector> Guest|4657, can you see what frequency it has?
11:03:28 <Guest|4657> Everything I connect it to Gives me this Wave and I cant get any usable reading, Like if i connect Just the probe not the ground lead, It will read the same wave even if its on one end of a battery
11:04:24 <Guest|4657> https://gyazo.com/9f7b16a98dbf351bb72c545d51f61ecc
11:06:12 <Guest|4657> its saying 194 hz
11:07:00 <Guest|4657> +-1V is a lot of noise isnt it?
11:10:07 <Guest|4657> Wait thats wack, Okay i guess its not broken, Just if I dont have my Ground lead Attached it Shows like 24V+- Occilating, I guess it is just mains noise
11:11:13 <rust_collector> I get about the same on this old thing. around +/- 1v
11:11:45 <steve30> Yeah, you'll need to connect the ground lead to whatever device you're measuring
11:11:59 <steve30> I was going to suggest that you check if the probe/cable are not broken.
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13:37:50 <T3sl4> steve30: https://i.redd.it/ul4vnal1rpq51.jpg
13:38:38 <steve30> hehe
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14:20:21 <EEVBlog> New EEVBlog Tweet: And Dave said, Let there be light; And there was light. Dave saw that the light was good. Dave called the light "Shooting", and the darkness he called "Editing". Lab genesis 1:3 https://t.co/sOh8MJUAyB
14:23:21 <steve30> Kitty Film: https://www.youtube.com/watch?v=pYBTVfio8f4
16:39:33 Join: Ysjoelfir_ ([email protected]) to #EEVblog
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18:04:13 Join: Watcher ([email protected]) to #EEVblog
18:14:03 Join: Nero ([email protected]) to #EEVblog
18:26:25 Nick: Nero is now known as NeroTHz
18:26:41 Quit: NeroTHz ([email protected]) Changing hosts
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18:26:44 <NeroTHz> monin
18:27:59 <Watcher> Morning
18:34:38 <rust_collector> TA DAA! and it was morning.
18:35:53 <Watcher> and if you wait a couple moment it is afternoon
18:36:21 <rust_collector> well, we will see about that
18:47:34 <NeroTHz> https://jorenvaes.myportfolio.com/ it needs some more work but I like where it is going
18:51:07 <NeroTHz> I guess it mostly just needs content which is what I´m working on now
19:03:43 Quit: MRiddickW ([email protected]) Quit: No Ping reply in 180 seconds.
19:04:10 <rust_collector> that looks like it is working nice.
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19:52:38 <EEVBlog> New EEVBlog Tweet: 5yo Huxley just rated A New Hope 5 out of 10. Harsh critic.
19:55:03 Quit: clarkos ([email protected]) Ping timeout: 121 seconds
19:56:51 Quit: Ysjoelfir ([email protected]) Changing hosts
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19:57:00 Mode: (by ChanOP) +o Ysjoelfir
19:59:46 <Ysjoelfir> mornings
20:02:08 <Ysjoelfir> rusty, mr. idiot seller actually found the tailstock of my lathe, yay! but its broken. maybe I can fix that
20:04:37 <hsn> u can do it Ysjoelfir u r super hero
20:06:36 Join: clarkos ([email protected]) to #EEVblog
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20:07:37 <Ysjoelfir> hsn, a supperheo like that? https://www.youtube.com/watch?v=-nrUv6XF_Mg&t=1s
20:08:56 <hsn> Ysjoelfir thats lots of talk i skimmed it :D
20:09:23 <Ysjoelfir> noooooo
20:09:26 <Ysjoelfir> you must listen to it
20:34:22 <rust_collector> yeah, patch it up, it will be fine-ish
20:47:25 Quit: MRiddickW ([email protected]) Ping timeout: 121 seconds
20:54:16 <Ysjoelfir> let me show you a picture
20:55:22 <rust_collector> well, ok, I will allow that
20:59:06 <Ysjoelfir> rust_collector https://drive.google.com/drive/folders/1tVjWFxsYNQGR_Kf3jMBMexu8rrfK93dA?usp=sharing
20:59:47 <Ysjoelfir> last picture shows pretty good where its broken. might be tricky to fix in a way that it is still straight
21:00:49 <Ysjoelfir> but otoh, you can still get that cast alumuminuminum case for roughly 90€as a spare part, if it doesn't work at all
21:01:01 <rust_collector> did he find the missing piece?
21:01:06 <Ysjoelfir> nope
21:02:33 <Ysjoelfir> I would immagine it being pretty easy to fix if the missing piece would be there. fill the hollow bottom with epoxy or cold metal.... or even go to someone that can weld aluminium
21:02:57 <rust_collector> everyone can weld aluminium. it is not magic
21:03:25 <rust_collector> hmm, can your machine do ac?
21:03:30 <Ysjoelfir> if you have a AC tig thing. or.. some other method I don't know. :D
21:03:52 <rust_collector> for "larger" castings like that, I just use atick
21:03:56 <rust_collector> stick
21:04:33 <Ysjoelfir> my machine can only dc. I didn't know that there are stick electrodes for alu?
21:04:41 <rust_collector> sure there are
21:05:12 <rust_collector> they are... not cheap. and you need to bake them, but they are there
21:06:10 <rust_collector> let me know if you need some. I have most of a pack left.
21:07:22 <rust_collector> I got them to adapt a bellhousing to a transmission, using the cut and paste method. it has afaik worked well for at least 10 years now
21:08:15 <Ysjoelfir> cool :D I'll see if I find a way to make that sit straight, by maybe adding just a piece of flat alu, as half of that trapezoid in the casting seems to be still there. if I do, I'll give it a try :)
21:08:49 <Ysjoelfir> but now mrs. Kelly wants me to continue gaming xD "You said you want to play that game, now stop chatting and entertain me!" XD
21:09:03 <rust_collector> it should not need very much, it is not exactly much power happening there
21:09:12 <rust_collector> hmm, disturbing...
21:09:15 <Ysjoelfir> I think so, too.
21:09:18 <Ysjoelfir> lol, why?^^
21:09:22 <rust_collector> play tetris?
21:09:48 <Ysjoelfir> no, that: https://store.steampowered.com/app/338390/The_Technomancer/
21:09:55 <rust_collector> wolfenstein "3d"
21:10:04 <Ysjoelfir> xD
21:11:36 <rust_collector> ok, have fun playing pong for a few hours
21:21:49 Join: Viproz ([email protected]) to #EEVblog
21:26:34 <Viproz> Hey guys, I'm trying to connect an ESP32 to my washing machine in order to have a way to do a delayed start (it's an older model without this feature) but while working on this I discovered that the logical ground plane on the board is not grounded to main earth (so when measuring the voltage on a multimeter between earth and GND I start getting 50
21:26:34 <Viproz> V and it quickly changes to 0V). Is there a reason for this ? Can I ground it to make it safter for me to tinker with the ESP32 outside of the plastic enclosure ?
21:30:37 <rust_collector> good question, I think you probably should leave it alone, and let the things "float" there is probably a reason for it being like that.
21:39:15 <Viproz> rust_collector: ok thanks, I guess I'll just have to not touch anything while the washing machine is on
21:43:30 <rust_collector> yeah, that is a plan, imo.
21:44:44 <rust_collector> do you really have to mess that much with the esp, while it is in there? hmm, electrohead are you there? this guy needs your skills, lol
21:45:12 <rust_collector> mr head likes to turn thing on and off with esp-ish things
21:47:49 <rust_collector> Viproz, how are you going to power that thing?
22:38:32 <clarkos> What do you need to interface to?
22:38:48 <clarkos> Just use relays for control and feedback and you can be totally isolated?
22:38:52 Quit: PsySc0rpi0n ([email protected]) Quit: leaving
22:43:37 <Viproz> rust_collector: clarkos: https://photos.app.goo.gl/EnotiXvjrQycFTG5A I was planning on using the +5V of the washing machine and an optocoupler to activate the button
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22:49:18 <clarkos> Not wanting to use relays?
22:51:43 <Viproz> I'm not sure I have suitable relays for this and I was under the impression that an optocoupler would be sufficient for this, is there a reason for one or the other here?
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22:58:49 <electrohead> o/
23:01:12 Quit: Icedream ([email protected]) Quit: A lol made me boom.
23:05:25 <hsn> hey guys
23:05:52 <electrohead> what all are the three buttons for?
23:05:55 <electrohead> hey hsn
23:05:56 <hsn> remember i was talking fun about how our shit space agency is?
23:06:54 <hsn> https://photos.app.goo.gl/wqu3wC4Uyp3fdVJWA
23:07:26 <hsn> this is their programs lol
23:08:45 <hsn> which is fine if they did somthing ... or they didnt claim that they are going to space technology soon.
23:10:19 <Viproz> electrohead, hey, the one I soldered to is the start/pause button and the other two are no rinsing and cold wash, so not useful to me. The selection of the program will have to be manual, it's a dial to the right of the photo but it's not an issue, the filling of the washing machine will have to be manual too :D
23:11:13 <electrohead> fair enough :P
23:11:51 <electrohead> before getting into the isolation part of things, where will you be pulling power from to power the ESP32?
23:12:51 <electrohead> I know you said the +5V rail, but where exactly in that picture, I should say?
23:15:07 <electrohead> for isolation and such - I'd yank the PCB out of the washing machine, and first verify if all grounds on the PCB are referenced to each other, and more importantly, are there separate grounds? ie, analog *and* digital ground
23:15:55 <Viproz> https://imgur.com/a/KY71caz Here at the top left in red is the +5V and in black to GND
23:18:20 <electrohead> also to consider - is there enough power to feed to the ESP?
23:19:13 <Viproz> Yeah to be fair I was lazy and I didn't take everything apart, I just took it down enough to solder the wires, there are some big caps on the board but I don't see a clear separation in the board so I'm not sure they are doing much with the 220V
23:20:08 <electrohead> well, if you can, I'd verify what is going on beforehand
23:20:24 <electrohead> that said, you could just use an optocoupler like you said, to be safe
23:20:29 <electrohead> relay would work just as well
23:21:21 <electrohead> if you do verify all power rails and ground(s) on the PCB, you could easily just use a transistor/MOSFET to electronically switch it for you
23:22:19 <electrohead> surely, MOSFET would technically be overkill, but.. I've used a MOSFET in place of a transistor before, mainly because I didn't have a proper rated transnsitor, and settled on yanking a mosfet out of a broken board I had laying around :P
23:24:56 Join: Icedream ([email protected]) to #EEVblog
23:25:39 <Viproz> Well I'm sure that the GND I'm pugged in is the same as the GND on the switch and on all the left side of the board, I'm not sure if the GND plane goes all the way to the right or not. I'm checking to see the power usage of my ESP32 Mini to see if it's reasonable to assume the board will handle it or not, thanks for the diagnostic btw
23:27:28 <electrohead> what is supplying the 5VDC on the main board? err, what regulator?
23:37:11 * electrohead solders rust_collector's diode collection together in the shape of a pentagram again
23:43:17 * Ysjoelfir adds some LEDs to the tips of the pentagram and adds a battery
23:47:47 <electrohead> that.. would actually look cool, lol
23:49:27 <Viproz> okay so the +5V comes from a L75M05 so 0.5A max, one thing working for me is that the max consumption of the ESP32 will be while the washing machine is not working (so no 5V used to activate the relays)
23:50:40 <electrohead> what voltage feeds the L75M05?
23:53:27 <Viproz> It gets fed from a LNK304GN so I don't know
23:56:56 Join: Watcher ([email protected]) to #EEVblog
23:57:11 <Viproz> https://photos.app.goo.gl/MTDGUSSb7CCYvS4n7 In red is the +5V I'm soldered into and in black the GND, the chip that is black of the picture is the L78M05
23:58:44 Quit: Viproz_web ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
23:59:07 <electrohead> ok, I'm asking these questions so if your washing machine starts acting a bit wonky, you'll know why :p
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