#eevblog - 2020-03-31 - AustNet Archive Project

// #eevblog — 2020-03-31

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« 2020-03-30 2020-04-01 »
21:56 <rust_collector> sounds like I am going to do a windows install again... so that was that day
30:33 Join: hsn993 ([email protected]) to #EEVblog
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37:46 <rust_collector> Lemon, how would you measure the self discharge rate of a 3 cell pack of lipo batteries?
40:06 <rust_collector> that seems like your sort of thing
40:39 <Lemon> I guess with a high input impedance dmm, with at least 5.5 digits and data logging ?
41:26 <rust_collector> so, you would just charge it up, then log it until it was at what you think is empty?
41:53 Join: hsn ([email protected]) to #EEVblog
45:05 <rust_collector> or do you think you should measure each cell?
55:46 <Lemon> well if you want to know for the whole pack, do it whith the pack assambled, if its for just one cell then just one cell at a time :>
56:12 <rust_collector> ok, that is cheating
59:49 <K> define "empty"
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39:51 <rust_collector> that was one of my points
40:20 <rust_collector> I am pretty sure I would not want to tie up a meter to do that for a year anyway
40:58 <rust_collector> butt, time to make more coffee
45:40 <rust_collector> I did get stuff to the dump. there was just a few in line when I came there this time. the previous time, there were cars in a line up the road, thru the crossing, and across the bridge. when I left there this time, they were starting to get close to the crossing again
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52:25 <rust_collector> at least my trailer looks happy again
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40:57 Join: Nothing\ ([email protected]) to #EEVblog
41:07 <Nothing\> hey, i had a question
41:27 <Nothing\> would a USB power supply be sufficient isolation to use a scope on something being powered by it?
42:04 <Nothing\> like, would i risk my scope blowing up if i connected the ground lead to part of the circuit other than ground?
42:30 <Nothing\> ever since that "how not to blow up your scope" video i've been super paranoid about that
42:43 <Nothing\> but i figured the transformer in it should provide sufficient isolation
44:11 <Nothing\> i'm assuming if a usb power supply provides sufficient isolation for user protection it should be good enough for a scope
46:53 <K> um, probably not
47:17 <rust_collector> not as such, I think
47:19 <Nothing\> hrm, see i'm concerned about using my USB powered LC meter with my oscilloscope
48:23 <Nothing\> i've done some cursory tests, connecting my scope to a makeshift transformer i made from a repurposed toroid core and had no problems, but i wouldn't want to go any further than that until i know for certain
48:31 <rust_collector> not that I think anything would happen, but a usb power is probably not isolated as such
48:48 <Nothing\> really? not even with the transformer?
48:59 <rust_collector> what kind of power do you have?
49:00 <Nothing\> i figured all transformers should provide isolation
49:12 <Nothing\> it's 120v 60hz
49:26 <rust_collector> yes, but..
49:44 <rust_collector> is it a phone charger, or...
49:52 <Nothing\> oh, yeah a phone charger
49:59 <rust_collector> if it is usb, it is probably a switchmode thing
50:09 <Nothing\> right, it is
50:10 <rust_collector> so not much transformering
50:23 <Nothing\> i can literally hear the controller in it lol
50:36 <rust_collector> I think they tend to have a capacitor across the transformer, for "safety"
50:52 <Nothing\> aye class Y's are leaky as i understand it
50:58 * Ampera hugs Nothing\ 
51:02 <Ampera> how are you doing friend
51:09 * Nothing\ gives Ampera  a big hug!
51:12 <Nothing\> i'm doing great man
51:19 <Nothing\> did i tell you i've got a break from jail?
51:27 <Nothing\> i don't have to go back till may 2nd :D
51:31 <rust_collector> heh, people hugging nothing looks weird
51:36 <Ampera> aye
51:39 <Ampera> do they still count time?
51:41 * Nothing\ hugs rust_collector <3
51:54 <Nothing\> Ampera: yup, cuz i'm supposed to be on house arrest for each weekend
52:02 <Ampera> neat
52:02 <rust_collector> good hugging
52:55 <Nothing\> so by the 2nd i'll have served all of 3 weekends out of 15
52:58 <Nothing\> hahaha
53:13 <Nothing\> not that it matters, i actually liked it in there
53:17 <Nothing\> it was a lot of fun
53:31 <Nothing\> just sit around, watch tv and shoot the shit with my friends
53:44 <Nothing\> only problem is the TV was fucked, so we only got one channel
54:10 <Nothing\> if we were lucky it'd be stuck on the movie channel, but sometimes it'd be stuck on the CBC and we'd end up having to watch saturday morning cartoons
54:32 <Nothing\> imagine that, a bunch of hardened criminals in orange jumpsuits watching dora the explorer
54:53 <Ampera> lol
55:03 <Ampera> do they actually shove you in an orange jumpsuit?
55:08 <Nothing\> oh yeah
55:12 <rust_collector> oh, so you are a hardened criminal now?
55:24 <Nothing\> rust_collector: i wouldn't say i am, but some of them are
55:42 <Nothing\> one guy in there was caught with something like 20 guns and 20k+ rounds of ammo
56:02 <Nothing\> a lot of people in for assault
56:03 <rust_collector> sounds like a random country boy...
56:10 <rust_collector> so...
56:12 <Nothing\> nah, he lived in toronto
56:21 <Nothing\> the jail's in toronto so that's where a lot of them are from
56:32 <Nothing\> the toronto south detention center
56:56 <Nothing\> one of the most violent prisons in ontario
57:10 <Nothing\> luckily i was in the part where everyone's chill and easy to get along with
57:21 <Nothing\> but apparently the people doing straight time are a different story
57:29 <Nothing\> but yeah Ampera
57:44 <Nothing\> when you come in there, you strip down, put on a pair of prison issue boxers
58:29 <Nothing\> then head over to this area where there's a guard, you take your boxers off, turn around, bend over, show him the bottoms of each of your your feet, for some reason, then go over to a counter for your jumpsuit
58:59 <Nothing\> then they run you through this x-ray scanner that scans your insides to make sure you don't have anything up your ass
59:10 <Nothing\> which for some reason i kept coming up positive for that stupid thing
59:13 <Ampera> maybe that's for the black people to make sure it's not just a white guy who bathed in shoe polish
59:25 <Nothing\> so they'd make me go have a shit and scan me again
59:38 <Nothing\> and if i fail, they send me to the hole, but that hasn't happened yet
59:44 <Nothing\> haha
59:57 <Nothing\> there actually weren't that many black people in there for some reason
00:00 <Ampera> Well I'm stuck at home too, working a job
00:11 <Nothing\> is that a good thing?
00:14 <Ampera> of course not, because it's racist to arrest black people
00:18 <Ampera> I mean I make money
00:30 <Ampera> but fuck is it boring, since I don't get to go to a place and focus
00:36 <Nothing\> well that's good at least
00:40 <Nothing\> yeah i know what you mean
00:49 <Nothing\> it's so much harder to focus at home with so many distractions
00:55 <Nothing\> what you need is a work space
01:03 <Nothing\> a separate room for doing your work
01:11 <Ampera> I can definitely say that I'll do QA for some years, but it won't be the end all of my working life
01:23 <Nothing\> you like what you're doing?
01:24 <Ampera> I need to get out and do shit, QA has to be a launching pad for me
01:55 <Ampera> Right now it's not about like. I don't hate it, but it's not a particularly entertaining job, there's a lot of bland documentation and software testing
02:01 <Ampera> some more interesting solutions if you can put in the effort
02:35 <Nothing\> i see, so theer's a lot of variation in the situations you come across and solutions you need to implement?
02:54 <Ampera> eh
03:01 <Nothing\> i take that as a no
03:12 <Ampera> at the end of the day I'm sitting at a computer coming up with ways to make sure software isn't broken
03:21 <Nothing\> ah
03:30 <Nothing\> well at least you get paid for it
03:47 <Nothing\> and you're living at home, so that gives you lots of opportunity to save up your money, yeah?
04:10 <Ampera> Yeah, but staying at home, especially being stuck here, is doing a number on my depression again
04:20 <Nothing\> that really sucks
04:22 <Ampera> dysphoric feelings are at an all time high atm
04:32 <Nothing\> i stay at home all the time as it is, so it's not much different for me
04:35 <Ampera> my grandfather is in the ICU right now which sucks
04:40 <Nothing\> i only ever leave the house like twice a week
04:44 <Nothing\> aww man i'm sorry to hear that
04:52 <Nothing\> my grandmother just died last week
04:55 <Ampera> He had a kidney transplant and is having some semi-serious complications
04:59 <Nothing\> and my grandfather died in december
05:03 <Ampera> buh
05:06 <Ampera> that's fucked
05:15 <Nothing\> yeah, i'm just glad they can be together now
05:26 <Ampera> I don't have much family, so the family I have I keep as best a reach on as possible
05:27 <Nothing\> and i'm glad my grandmother went quickly without suffering
05:37 <Ampera> I rarely see or talk to my mother, who was the world to me, which was a big blow
05:41 <Nothing\> yeah the only family i have is my mom, god bless her
05:58 <Ampera> my dad kinda replaced her with a fat chick who does nothing but stay in bed all day
06:08 <Nothing\> she's the only one who's ever been there for me through everything
06:26 <Ampera> My mom went through what I'd almost call a mental collapse, and hasn't really recovered from it
06:35 <Nothing\> aww man
06:39 <Ampera> full on midlife crisis, trying to find the meaning of all of it
06:43 <Nothing\> well, just try to be there for her however you can
06:52 <Ampera> ended up ditching my dad for an indian guy she met on facebook, got a divorce, moved out
06:54 <Nothing\> however small it may seem
07:09 <Nothing\> every little bit of support counts, right?
07:20 <Ampera> then broke up with the indian guy and is now slowly finding out that whatever she tossed out was probably worth more to her than she thought
07:47 <Ampera> she also has a serious alcoholism problem, including driving while visibly drunk, one she will probably never be able to address
07:48 <Nothing\> i like to leave my mom random messages around the house to remind her how much she means to me and good a person she is
08:08 <Nothing\> aye, my dad had/has alcohol problems too
08:10 <Ampera> I've been too emotionally damaged to do things like that
08:23 <Ampera> even the idea of telling someone I love them is almost disgusting to me
08:37 <Nothing\> i remember when i was a teenager i had some legal problems and my dad had to take me to an appointment with my lawyer
08:50 <Nothing\> and he absolutely reeked of booze when i got into the car with him
09:19 <Nothing\> i'm glad you didn't end up going down that road, man
09:31 <Ampera> It's insane, because everything started out so nice
09:39 <Nothing\> i know i've said it before, but it really is remarkable how you've avoided addiction
09:40 <Ampera> I had a really nice family, that kinda made everything work, and really cared
09:56 <Nothing\> yeah that's how it was for me, too
10:00 <Ampera> That's because I was very very smart from an early age, and never was put into that position
10:19 <Nothing\> makes it all the more difficult now that things have gone to shit cuz i know what i'm missing out on
10:25 <Ampera> I mean if my memory were better I could probably put everything that I mentioned here on a five year timeline
10:31 <Ampera> that's how recent it all is
11:55 <Ampera> Regardless, the past is immutable
12:05 <Nothing\> yeah, you can't dwell on it
12:13 <Nothing\> it changes nothing and just makes you feel shittier
12:18 <Ampera> I do it all the time
12:24 <Nothing\> you and me both
12:31 <Ampera> not really the past, but trying to live within whatever alternate realities my mind conjures up
12:42 <Nothing\> i wish i didn't, but it's one of those things where i'm aware i'm doing it, but powerless to stop
12:58 <Ampera> Because it's just like any other drug
13:06 <Ampera> it give you that one slight moment of feeling happy
13:12 <Ampera> being able to live, even within your mind, elsewhere
13:18 <Ampera> you start to build a reliance on it
13:37 <Nothing\> one thing i've always said, it's human nature to want what you can't have and take what you do have for granted
13:39 <Ampera> for me all of my fantasies are coping mechanisms, ones that only leave me more sad and more depressed
14:05 <Nothing\> that is, you don't realize how good you have it until things change
14:37 <Ampera> Pain is always a contrast
14:52 <Ampera> everyone lives in the same pain, those with more of it simply have a greater contrast than others
14:57 <Ampera> in the end we all either hurt or we don't
15:25 <Nothing\> everybody has their own burdens to carry, it's just a matter of what it is
15:38 <Ampera> I just wish I could some day, some how, do something about mine
15:38 <Nothing\> and how well they can cope
15:46 <Nothing\> you will
15:52 <Ampera> I don't believe I will.
15:55 <Nothing\> nothing lasts forever, not even pain
16:04 <Ampera> Not every story has a happy ending. There are millions who can attest directly to that.
16:19 <Nothing\> you may not have a happy ending, but a neutral one maybe
16:29 <Ampera> All I know is I will have an ending.
16:42 <Nothing\> yup
16:44 <Ampera> None of that future has been written yet, all I can do is stare at the road ahead and panic as I am unable to grapple the steering wheel with any real confidence
17:30 <Nothing\> well, i really hope it ends up being good
17:40 <Nothing\> i wish nothing but the best for you, buddy
17:41 <Nothing\> <3
17:43 <Ampera> <3
17:51 <Nothing\> for what it's worth, you're in my prayers
18:16 <Ampera> There are very few moments, but ones that exist well enough, that I almost in a sense pray.
18:35 <Nothing\> you should open yourself up to god
18:39 <Ampera> With little else but a will to try, I place my mind into a meditation, and attempt to will the future into a more favourable path.
18:53 <Ampera> I believe the world is more complicated than anyone is prepared to understand
18:54 <Nothing\> i can't speak for you, obviously, but i know with me, i actually believed in god for a lot longer than i realized
19:09 <Nothing\> but because of my pride, i resisted that belief for the longest time
19:09 <Ampera> however I don't believe in a god. I see it as an interpretation of the world I cannot rationalize within my mind
19:21 <Nothing\> it doesn't have to be the chrstian god
19:23 <Ampera> It's not a matter of pride, it's simply how I open my eyes
19:28 <Nothing\> but just , something you know?
19:39 <Ampera> I believe in the future, and time
19:51 <Ampera> and being able to use my mind to see beyond what I can know
19:58 <Nothing\> one problem a lot of atheists have is they think they organized religions represent god
20:08 <Nothing\> and they use that as a reason not to believe in god
20:16 <Ampera> If I see or look to god is a matter of perspective. There are always many ways to look at the universe.
20:59 <Nothing\> the problem for me though was that when i did open myself up to god
21:11 <Nothing\> it only caused more questions and confusion than it helped
21:32 <Nothing\> but none the less, i found comfort in knowing i had help with my problems
22:13 <Ampera> ech, I wish I could go to bed, but I have 4 hours more of work to do before that
22:24 <Ampera> I think I'm just gonna crunch down and try to dissociate into it
22:29 <Nothing\> i'm exhausted, myself
22:39 <Nothing\> my shrink gave me new meds that have me exhausted all the time
22:41 <Ampera> I seem to be able to suspend my mind more than usual
23:11 <Nothing\> more often than not i find myself nodding off uncontrollably
23:31 <Nothing\> i broke my lamp the other day cuz i fell asleep and fell into it
23:36 <Ampera> Nothing\, there is not a person on this planet I do not envy, as novel is sometimes comparable to better, but I do sometimes envy you.
23:40 <Nothing\> fell asleep standing up
23:45 <Ampera> Your worries are things I never have to thin about, and mine often yours.
23:58 <Ampera> I would trade my existence with almost anyone
24:19 <Nothing\> i know that feeling, but keep in mind everyone has their own problems to deal with
24:46 <Nothing\> that guy you see driving down the street who you wish you could be probably has troubles with his wife
25:05 <Nothing\> or that guy walking down the street is probably an alcoholic who ruined his life
25:14 <Nothing\> stufflike that
25:23 <Ampera> The thing is those problems are different. From my perspective perhaps even simple, and I may even be able to solve them if I were him
25:29 <Nothing\> envy me for my insight, but not for my life
25:38 <Nothing\> believe me, you wouldn't want my life
25:44 <Ampera> likewise, my problems might be trivial to those with a different perspective, a different metal
25:49 <Ampera> Believe me, you wouldn't want mine
25:53 <Nothing\> constantly struggling with mental health and addiction problems
26:10 <Nothing\> always isolated from the world
26:18 <Nothing\> anxiety attacks at the drop of a hat
26:22 <Ampera> Yet, your mind may find my situation and laugh at its trivialities
26:34 <Nothing\> not at all
26:53 <Nothing\> you see, while one person's problems may seem trivial to another
27:10 <Nothing\> to the person experiencing them, they're just as serious as any other issues
27:43 <Ampera> It's strange how I deal with depression and pain
27:48 <Nothing\> what may seem like a trivial problem to one person would be a deadly serious problem to the one expiencing it
27:54 <Nothing\> it's all relative
27:55 <Ampera> Just analyzing it, I feel like I'm always at a breaking point, but I never am
28:10 <Ampera> I'm always at the edge of what I can bear, but there's always miles ahead of me that my pain can descend down into
28:12 <Nothing\> have you considered group counseling?
28:17 <Nothing\> or some sort of group
28:38 <Ampera> For my issues? The group are perhaps my greatest anxieties.
28:42 <Nothing\> one of the best things you can do you mental health is have a solid support network of good people
29:04 <Ampera> I have an almost irrational and seething hatred of anyone like me
29:21 <Nothing\> be that as it may, we have to push ourselves out of our comfort zone to make progress
29:28 <Ampera> It might be because I'm afraid their all frauds, all liars, all there to do nothing but hurt me more, and corrupt me, destroy me and what left I hold dear
29:35 <Nothing\> i know how that is, the hatred thing
29:39 <Ampera> but it might be because they make me confront my greatest anxieties
29:55 <Nothing\> it's because deep down, you hate yourself and see those qualities in others, right
30:00 <Nothing\> exactly
30:15 <Nothing\> but in order to make progress, you need to confront those anxieties
31:00 <Nothing\> even though every part of your being tells you to run away
31:04 <Ampera> I've broken through those walls before
31:17 <Ampera> became more open with my problems, stared them right in the face
31:30 <Nothing\> that's good, great even
31:32 <Ampera> but with me, namely my gender dysphoria, there's one wall that stares into me harder than any other
31:35 <Ampera> the prospect of transitioning
31:44 <Nothing\> right
31:45 <Ampera> and it's one I have never been able to really swallow, and I'm not sure if I ever will
32:03 <Ampera> It's a medicine that tastes too bad to take, with risks too high, costs too much
32:05 <Nothing\> well, why don't you transition?
32:16 <Nothing\> or at least start dressing and acting the part
32:33 <Nothing\> you don't need to have surgery or anything, but you can at least act like it
33:10 <Ampera> I've done it, I've even gotten out into public
33:17 <Ampera> but there are so many variables I can't control, so many things I can't do
33:30 <Ampera> even speaking completely and totally gives it away, and I don't know if I can lie not to others, but to myself that hard
33:44 <Nothing\> you have to learn to accept those things you can't control
34:14 <Ampera> I also need to find the balance of how much overt action is too much, because I am literally trying to transition into what other people consider normal, and trying to realize that within me it's a normal I want to feel
34:19 <Ampera> ech, that doesn't explain it well
34:30 <Ampera> When I start to get this deep into my psyche it gets hard to put it into words
34:38 <Nothing\> here's a good prayer you might dig
34:54 <Nothing\> Lord, give us courage to change what must be altered, serenity to accept what cannot be helped, and the insight to know the one from the other.
35:03 <Nothing\> i always liked that one
35:40 <Nothing\> it's what they use in 12 step programs
35:45 <Ampera> In the end, however it's done, it's myself I must find courage in
35:50 <Nothing\> much as i dislike 12 step programs, i like that prayer
36:03 <Ampera> There is nothing stopping me from taking the actions I wish so dearly to take.
36:17 <Nothing\> yes, just remember to push yourself outside your comfort zone
36:19 <Ampera> It's like chopping your arm off to save your life
36:31 <Nothing\> you know, that's actually in the bible too
36:32 <Ampera> Your mind is not designed to process that understanding
37:04 <Ampera> You know, one aspect of religion I enjoy is to compare their methods of thought to my own
37:20 <Ampera> Because a lot of the time the people who wrote those words did out of a profound attempt to understand existence as much as I do
37:35 <Ampera> and just like any attempt, contrasting against others is often a way to find new truths within your own
38:02 <Ampera> It's why I talk so heavily sometimes about my problems, in the almost vain hope that somehow I will find an argument, find a nugget of truth or courage that will push me that one step farther
38:05 <Nothing\> f your right hand causes you to stumble, cut it off,
38:05 <Nothing\> and throw it away from you. For it is more profitable
38:06 <Nothing\> for you that one of your members should perish, than
38:06 <Nothing\> for your whole body to be cast into Gehenna.
38:22 <Ampera> I believe I've heard that one before
38:46 <Nothing\> it's from the book of matthew, jesus' sermon on the mount
39:08 <Nothing\> i'm not so big on the bible anymore, but it really does have some good wisdom in it
39:09 <Ampera> yet, it is far easier to think about the removal of a part of one's self so dear and intrinsic to their own existence as their hand than it is to actually execute such a deed
39:34 <Ampera> yet it's even harder for me, as I can't simply swing an axe, wince, and have it be done
40:11 <Ampera> It's a slow, agonizing procedure I need to drag myself down into every single step of the way, and once I get to far, I can't turn back, or even stop for air
40:33 <Nothing\> nothing worth having ever came easy
40:48 <Nothing\> just be persistent and keep at it and one day it'll be yours'
41:07 <Ampera> I define easy in two ways, or rather difficulty, is polar counterpart, in one of two ways.
41:20 <Ampera> Difficult can be knowing how to accomplish your goal, and simply having to work hard to do so
41:53 <Ampera> However, difficult can be not knowing how to accomplish your goal, and no matter how hard you work, you never really know how to do it
41:55 <Nothing\> that's a good way to put it
42:05 <Nothing\> you know, i really envy your level of insight
42:37 <Nothing\> if i had just have the inight you have when i was your age, i might have stood a chance
43:10 <Nothing\> instead of becoming a terribly useless, mentally ill drug addict
43:38 <Ampera> There's something to be said about having insight, there's another to be said about possessing the strength and will to use it
43:47 <Ampera> I may have the insight, but you have the strength and will
45:58 <Ampera> It's a really strange condition, because all of this effort and desire is for something that the obverse of the coin flip have so easily.
46:26 <Ampera> I see exactly what I wish to be all around me, every day, it's impossible to not see everything I ever wanted right before me
46:33 <Ampera> as if it's some sort of cruel hellish joke
46:44 Join: Guest|98996 ([email protected]) to #EEVblog
47:14 Quit: Guest|98996 ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
47:41 <Ampera> I do appreciate talking with you, Nothing\. You'd be an awesome guy to know IRL as you're one of the few people I can really connect with
48:13 <Nothing\> thanks man, that means a lot
48:41 <Ampera> :)
48:44 <Nothing\> i know how tough it can be being in a state of mental tumult and i like to do what i can to make it easier on people doing with such ithngs
48:58 <Nothing\> especially when you're on yourown
49:19 <Ampera> One thing I've learned is sometimes joy comes from instilling happiness in others
49:36 <Nothing\> indeed
50:13 <Nothing\> bah i've gotta find something to eat
50:47 <rust_collector> chicken!
50:56 <Ampera> I've already had a big lobbing bowl of pasta crap
54:11 <Lemon> im going to order two little boards with those sts35 temp sensors, to build a prototype
54:36 <Lemon> once everything is figured out, I want to design a clean board, print the pcb with jlcpcb or whatever and do it cleanly
54:53 <Lemon> but I need something to solder those tiny ass smd parts
55:47 <Lemon> [19:49:20] <Ampera> One thing I've learned is sometimes joy comes from instilling happiness in others
55:52 <Lemon> so true, so true
56:00 <Lemon> I've been doing that my whole life
56:07 <Lemon> and sometimes I even feel guilty
56:09 <Nothing\> yeah i think i'm gonna have some reheated canadian style pizza
56:10 <Ampera> Lemon, you instill happiness in me I can say >:D
56:21 <Nothing\> i'll bbiab, it was great talking to you as always Ampera
56:26 <Ampera> Nothing\, you cannucks and your styles
56:28 <Ampera> aye
56:29 <Ampera> likewise
56:32 <Nothing\> take care of yourself, man
56:36 <Ampera> aye
56:37 <Nothing\> and don't think too much
56:38 <Nothing\> <3
56:39 <Ampera> likewise :3
56:44 <Ampera> can't stop the thinker >:D
58:28 Quit: Nothing\ ([email protected]) Quit: Leaving
07:26 <Lemon> hmmm I found exactly what I wanted https://www.ebay.fr/itm/ClosedCube-LMT70-0-1-C-Precision-Analog-Temperature-Sensor-Breakout/182278055658
07:48 <Lemon> ultra small, already soldered, accuracy of 0.1 to 0.2C max
07:53 <Lemon> the range is fine
09:50 <Lemon> I can easily get a nice resolution of 0.00C or maybe pushing it to 0.000C with averaging on a lot of samples
10:16 <Lemon> and as its an analog sensor I dont have to care about the lengh of the cable I think
10:24 <rust_collector> heh, good thing they stuch that to that huge pcb, so you can notice where it is
10:37 <Lemon> yes lol. its really, really small
10:41 <Lemon> thats perfect
10:53 <Lemon> I can solder a tiny header on it, so I can connect it to various lengh of cables
11:01 <Lemon> and put it under heatshrink or whatever
11:17 <Lemon> so it can fit in various tiny areas, to monitor temperature of an instrument, a voltage ref etc
13:14 <Lemon> I will take two to have two channels
13:22 <Lemon> four would be nice, but well I dont want to spend too much
13:29 <Lemon> and I can always add more later if I feel the need
13:40 <Lemon> two is nice, one for DUT and one for ambient room temp
17:45 <rust_collector> they are pretty pricy, per weight
18:38 <Lemon> yeah trye
18:40 <Lemon> true
19:45 <Lemon> I thought about using a small oled screen
19:56 <Lemon> to display both channels temp
20:15 <rust_collector> ok
20:19 <Lemon> and also write a simple program (thats a good reason for me to learn some python) that can log data
20:20 <rust_collector> that is an idea
20:45 <rust_collector> what will you run this program on?
20:46 <Lemon> and use gate times, like for 1 second it take multiple measurement, average it and show it, or for 10, 100 etc to increase accuracy/resolution
20:50 <Lemon> computer
21:06 <Lemon> that way it can be used either as a standalone for quick mesurements
21:13 <Lemon> or you can connect it for data logging
23:07 <Lemon> I could power it on batteries
23:20 <rust_collector> the computer?
23:21 <Lemon> that way I can take it with me if I need to measure something in the house, or whatever
23:28 <Lemon> nah the thermomete
23:31 <Lemon> r
23:48 <rust_collector> what thermometer?
23:58 <rust_collector> that thing is just a sensor, no?
25:04 <Lemon> no but I want to build a thermometer
25:16 <Lemon> thats what im saying, you know, since the last 10 minutes :>
25:23 <Lemon> a little thermometer with two sensors
25:31 <Lemon> to have two canals
25:35 <Lemon> with a little screen
25:42 <Lemon> and possibility to connect it to data log stuff
25:53 <Lemon> so I see it as a little box
25:58 <Lemon> on the bench
26:02 <Lemon> screen on front
28:27 <rust_collector> I thought you meant to write something to put those things into your xxx port on the computer... ok, so...
29:01 <rust_collector> do you need a cool case for a raspi4? lol
29:54 <Lemon> haha no thanks :P
30:06 <Lemon> I already have a cool rp3 with a cool case ! that I never use
31:14 <rust_collector> thats hot
32:31 <Lemon> so yeah I need to figure out the size of the box etc
32:37 <rust_collector> I really should see if I can sell those things. or at least take them inside, because they are still in the back seat
32:38 <Lemon> but first ima order those two sensors
33:24 <Lemon> I think I wont find headers of that size
33:35 <Lemon> I still need to confirmation that I can use whatever lengh of cable
33:40 <Lemon> I think I can, as those are simply analog sensors
33:44 <Lemon> and not using I2C
34:40 <rust_collector> I think you can not ever have any length. but... maybe solder on wires, going to a normal sized connector or header?
35:04 <rust_collector> solder on a micro usb connector, and sell them for 3 times the price?
35:46 <Lemon> well the ideal would be to have a male connector on the sensor, and a female on the thermometer
35:53 <Lemon> that way I can make multiple lengh of cables
36:03 <Lemon> like a 1 meter, 50cm and 10cm or so
36:33 <Lemon> but I think I'll simply make a 50cm one, and use a connector on the thermometer size
43:04 <rust_collector> i wonder if you can learn something from the Ti thingie that uses those sensors
43:16 <rust_collector> http://www.ti.com/lit/ug/sniu024b/sniu024b.pdf
44:58 <Lemon> ho nice thanks
46:47 <Lemon> 3 digits after coma resolution seems possible
49:19 <rust_collector> they mention 12" of 40gauge nickel wire...
50:35 <rust_collector> not sure if that means anything, or that it was just what they tested when they wrote tha
01:35 <Lemon> hmm I thought about using some wrapping wire that I have laying around
01:39 <Lemon> its like, 34-36 awg
13:29 <Lemon> do you have any idea of a function you'd want in such a device ?
13:52 <Lemon> I thought about nothing but the screen showing the two temps, only when a sensor is connected
14:19 <Lemon> and when you connect it via usb, the screen simply display nothing, and the pc overtake the device completely
14:25 <Lemon> that way its simple to operate
16:14 <Lemon> I could also get other kind of sensors with other ranges
16:22 <Lemon> those go from -55 to 150C or something
16:28 <rust_collector> I think... uhm, I would want it to have the screen, for quick checks. but also be able to write to say an sd card, for long term logging. but that is probably it.
16:36 <rust_collector> -40 to +150
16:38 <Lemon> I could get less accurate sensors that goes from 150 to 500 or whatever
16:53 <rust_collector> yeah, but you probably do not need that
17:15 <Lemon> yeah but you know its fun to add, if those sensors doesnt cost too much
17:43 <rust_collector> you are mr feature creep in person
18:13 <Lemon> lol dude thats not a ton of features
18:31 <Lemon> if I can get those sensors for a few euros why not
18:38 <Lemon> its all fun and games
18:39 <rust_collector> I think I would do this first, then if that works well enough, see if you can make it work well enough with a different sensor
18:51 <Lemon> I do most of that stuff because it amuse and teaches me things
19:38 <rust_collector> I am not saying you should never buy a different sensor. just make one thing work first
20:41 <Lemon> ho ofc its just something to add in the future, but as they take a long time to come, I better order it right now if I find one for cheap
21:16 <rust_collector> just send an email to ebay, and have them send you one of each, lol
21:35 <rust_collector> 1 week apart. that will do
22:20 <rust_collector> i was thinking about a dumb little project today
22:20 <Lemon> well anyway theres not a lot of options
22:52 <rust_collector> you know about basic test lights, for poking around in cars and such?
22:59 <Lemon> yeah
23:23 <rust_collector> I wonder if I should put one of those little voltmeter modules, and probably a battery in one
24:20 <rust_collector> so I can see more that .... oooooh, dim, around 6v, or OOOOOH! bright! 15v or so
25:05 <rust_collector> this is one of the more unimportant things I have thought about today
25:55 <Lemon> yeah why not !
25:57 <rust_collector> but I think it could be handy
27:18 <rust_collector> hehe, or maybe make test lights, that had a 3.3v regulator, and a led, so that it would light up, until the battery was completely dead and shorted out. that would sell well
28:46 <rust_collector> i just saw that little voltmeter module on my shelf, and it is very small. i think it could work
48:59 <Lemon> yeah those days you can have a nice usability for peanuts
50:21 <Lemon> alright I ordered those two sensors
50:29 <Lemon> I already have various screens
50:41 <Lemon> I will need an enclosure but that will be determined later
51:31 <rust_collector> so, is this the time, that you figure you need to have a pic mc... for this device?
55:13 <Lemon> ho I have tons of pics
55:15 <Lemon> thanks to my father
55:24 <Lemon> really, in the uC area I do have choices
55:33 <rust_collector> cool.
55:41 <Lemon> pics, various atmel chips, arduino boards, obscure stuff, stm32 etc
56:07 <rust_collector> I have, afaik, a pic... it is soldered into a garagedoor opener
56:10 <Lemon> on the last years he loved to try various cheap ones to see what guts they had
56:45 <rust_collector> stms are everywhere here
56:53 <Lemon> well it would be nice to redisgn the thermometer once its done, with a proper pcb, just the needed components etc instead of using an arduino module
57:07 <rust_collector> yes
57:26 <rust_collector> and use a real pic, not an atmel
58:20 <Lemon> yeah why not
58:34 <Lemon> I want to design something, and print the pcb via one of those cheap websites
58:39 <Lemon> that will look clean
59:17 <rust_collector> pcblxpcd.com! we have free pcbs, only ¤30 for local shipping, each
59:26 <rust_collector> buy 30, get none free!
00:14 <Lemon> haha well I looked at it and honestly its really interesting
00:20 <Lemon> they offer neat options, and shipping is fine
00:47 <rust_collector> hot pink
01:51 <Ampera> rust_collector, advertising in this channel will get you put in the sex dungeon, final warning
02:09 <rust_collector> I will get my lube....
02:15 <Ampera> o.o
02:18 <Ampera> owo
02:24 * Ampera licks T3sl4
16:13 <Lemon> I wrote down every data for the thermometer
16:26 <Lemon> if anyone is interested by reading it, and maybe suggest some feature to add
16:43 <Lemon> I want to keep it simple but if something is really important, I gladly take it !
16:59 <Lemon> lets see if I can paste it here
17:02 <Lemon> LMT70 sensors
17:02 <Lemon> PIC/ATMEL Microcontroller
17:02 <Lemon> Metal/ABS enclosure
17:02 <Lemon> Accuracy :
17:02 <Lemon> – ±0.05°C (typ) or ±0.13°C (max) from 20°C to 42°C
17:02 <Lemon> – ±0.2°C (max) from -20°C to 90°C
17:02 <Lemon> – ±0.23°C (max) from 90°C to 110°C
17:02 <Lemon> – ±0.36°C (max) from -55°C to 150°C
17:02 <Lemon> 2 channels, ranging from -55°C to 150°C
17:02 <Lemon> LCD screen with two lines, XX char
17:02 <Lemon> Resolution of 000.000°C
17:02 <Lemon> 50CM lengh of cable for sensors (can be disconnected)
17:02 <Lemon> If a sensor is disconnected, instead of the temp, 'Connect sensor 1/2' is displayed
17:02 <Lemon> ON/OFF switch on the left of the screen
17:03 <Lemon> Under power switch, a gate time selector with 4 positions : 100ms, 1s, 10s, 100s
17:03 <Lemon> On the right of the screen, a hold button for each channel
17:03 <Lemon> 5VDC supplied from a wall-wart
17:03 <Lemon> When connected via usb, 'Connected to computer' is displayed on both lines
17:03 <Lemon> Software on pc includes :
17:03 <Lemon> Graph with temp/time for both channels
17:03 <Lemon> Save in a file
17:03 <Lemon> Show the number of samples
17:03 <Lemon> Measure on a given period of time
18:09 <rust_collector> I believe the sensor is supposed to work at 3.3v 2.5 to 5.5
19:12 <rust_collector> and, they make a point out of it having an enable thing, so you can use several sensors, and turn them on and off individually?, is that useful?
21:03 <Lemon> ho well I guess I can just shut the display for that but yeah I can look into it !
21:13 <Lemon> I'll just use 5V, for the screen, uC, sensors etc
21:15 <Lemon> its easier that way
21:55 <rust_collector> I also wonder if you should just let the display show the numbers, and not the connected to pc message, or maybe make it show a dot or whatever, to show if it is connected?.
23:22 <Lemon> imw ondering the same, but as you are looking at the computer, and the software is doing things that the thermometer display cant show, I think its easier to just shut it
24:17 <rust_collector> ok
26:32 <rust_collector> what programmer things do you have for the microcontrollers?
26:32 <Lemon> I need to read more on gate time and resolution
27:04 <Lemon> ho various thingies like serial to usb, some pic special stuff etc I havent looked at it in detail
27:10 <Lemon> but im pretty sure I have everything needed
29:00 <rust_collector> i remember looking at the pickit things, but people were so back and forth about using the pickit2 or 3, and the programs they used, that I just gave up, and forgot about the whole thing
31:25 <Lemon> yeah I havent looked a lot at it
32:21 <Lemon> I wonder if some heatshrink on the sensor is a problem
32:43 <Lemon> I guess not
32:46 <Lemon> but we never know
33:26 <rust_collector> it is getting its reading thru vias in the pcb
33:30 <Lemon> I thought about dripping it in nail polish or something to waterproof it
33:52 <rust_collector> it is also somewhat sensitive to light
34:02 <rust_collector> especially from the sides
34:20 <rust_collector> and especially ir
34:34 <rust_collector> (says TI)
35:25 <Lemon> hmmmm
35:33 <Lemon> so heatshrink would actually helps ?
35:40 <Lemon> that way theres no variation of light
35:52 <rust_collector> yes, except the thermal transfer thru the pcb
36:41 <rust_collector> if you are just getting readings from air, i guess it should be ok?
37:52 <Lemon> yeah but I planned to use it to measure things like a chip for example
37:57 <Lemon> by putting the sensor on it
38:13 <rust_collector> yes, so there you would probably want the pcb clamped to the chip
38:47 <Lemon> so no heatshrink, but I can maybe coat the sensor itself, to protect it
38:54 <rust_collector> yeah
39:01 <Lemon> well I'll see
39:06 <Lemon> it wont see rough utilisation anyway
39:13 <Lemon> heck its a precision device
39:13 <rust_collector> it has a layer of some coating on the "top" but not on the sides
39:21 <Lemon> not a el cheapo thermocouple used with an aneng
39:31 <Lemon> ok thanks
39:35 <Lemon> you rtfm better than me
39:46 <rust_collector> HEY! my aneng does not have a thermocouple
39:47 <Lemon> I only looked at specs and the preface lol
39:58 <Lemon> haha I have nothing against aneng !
40:01 <rust_collector> ti has a datasheet for the thing
40:02 <Lemon> I wanted to get one actually
40:10 <rust_collector> well, don't
40:37 <Ampera> taxation is theft
40:53 <rust_collector> heh, and my thermocouple is one of those generic chingchong standalone things.
41:17 <rust_collector> well, Ampera I do not disagree too much with that
41:19 <Lemon> well as long as it does the job
41:25 <Lemon> I wwanted a fairly accurate thermometer
41:31 <Lemon> if I were to buy one, it would cost a lot
41:32 <Ampera> Hippity hoppity, get off my property
41:37 <Lemon> so better build it, on that case
41:50 <Ampera> Stand your ground, don't tread on me
42:05 <rust_collector> Ampera, what are you doing now?
42:52 <Ampera> celebrating my very first registration to a political party
42:59 <rust_collector> eh, ok
44:53 <rust_collector> I want my own island, a free energy fridge, and a fishing rod
45:21 <Ampera> I want a state to fight for its workers, the means of production to be seized, and private industry to be abolished
45:46 <Ampera> I want full freedom to gun ownership and the abolition of all taxes, with full and total freedom of speech and expression
46:08 <rust_collector> so, who would pay the poly-tics?
46:20 <coppice_> US divorce filings are up 50%
46:43 <Ampera> coppice_, you know what they say, divorce is good for the wedding industry
47:33 <coppice_> I thought it was only good for the legal industry
48:46 <Ampera> that too
01:49 <Lemon> btw I need a switch with 4 positions
02:01 <Lemon> but I have trouble to understand all those 2 deck 3 poles 5 positions stuff
02:08 <Lemon> https://www.ebay.fr/itm/3P4T-3-Pole-4-Position-Single-Wafer-Band-Selector-Rotary-Switch-PopSP/174217912114?hash=item2890325f32:g:hk4AAOSwrRlZoNp9
02:14 <Lemon> this one is fine ?
02:27 <Lemon> I just want 4 physical positions
07:45 <coppice_> Read the Karma Sutra. It will expand your expectations
15:47 <Lemon> I wrote it
21:11 <Lemon> I made a rough layout for the thermometer
21:15 Join: ThunderSqueak ([email protected]) to #EEVblog
21:15 Mode: (by ChanOP) +o ThunderSqueak
21:40 <Lemon> https://imgur.com/a/B1QxM0u
21:46 <Lemon> please dont hate on my pro paint skills
22:08 <Lemon> aff I forgot the C
25:37 <Lemon> https://imgur.com/a/HnX4DXH
25:41 <Lemon> like this, I prefer it
25:50 <Lemon> leds for the hold button instead of a 'H' on display
28:40 <Lemon> well we'll see tommorow, for now, bed time !
28:42 <Lemon> see you peeps
28:46 Quit: Lemon ([email protected]) Connection closed
39:39 <AndrevS> I'm off to bed as wel, bye
39:43 Quit: AndrevS ([email protected]) Quit: umount /dev/irc
33:59 * rust_collector is making bread again
34:14 <rust_collector> this time with yeast that maybe is not dead
34:22 <EEVBlog> New EEVBlog Retweet: Chris Gammell: This week on @TheAmpHour, of course @eevblog and I talked about COVID-19 and how that's affecting our lives and the electronics industry. But we also tried to cover some other stuff, since I have really been getting overloaded with info. Hope you enjoy! https://t.co/zbcE1yRn5H https://t.co/EUiTXVq7KB
54:31 <EEVBlog> New EEVBlog Tweet: This is not going to end well. https://t.co/0EiauMdArG
04:15 Quit: MrMobodies ([email protected]) Ping timeout: 121 seconds
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58:08 Quit: steve30 ([email protected]) Quit: <Baljem> steve30: by the way, I had the most bizarre dream the other day that someone came in here and seriously flipped their shit over your quit message and why aren't the ops /doing/ something about it
15:37 <EEVBlog> New EEVBlog Tweet: NEW EEVblog Video! eevBLAB #72 - BUSTED! Medtronics Open Ventilator FAIL https://t.co/DvagRDkkUk
03:30 Quit: ThunderSqueak ([email protected]) Quit: Leaving
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10:50 Quit: JoePublic ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
45:28 <PLRtx> Hi
47:10 <T3sl4> hi
48:11 <PLRtx> How is your environment?
49:17 <T3sl4> nominal
53:44 Join: steve30 ([email protected]) to #EEVblog
53:44 Mode: (by ChanOP) +o steve30
54:05 <PLRtx> It's good :0)
55:16 <PLRtx> we have lunch time 12
55:31 * steve30 waves from the thinkpad
56:03 <PLRtx> outdoor temperature -10С
56:56 <PLRtx> There are no casually speaking Russian?
57:24 <steve30> I only speak english
57:27 <T3sl4> nyet
58:35 <PLRtx> Boring - there’s nothing to do at work, - I watched the video, went to the site, I saw the chat, I decided to write: 0)
59:16 <T3sl4> almost the same here, but i am able to work from home fortunately
00:08 <PLRtx> Эх понятно - я сам с Дальнего востока Амурской области города Шимановска - как то сюда заходил уже переписывался обозвали ботом
01:09 <PLRtx> Oh, I see - I myself from the Far East of the Amur Region of the city of Shimanovsk - somehow I went here already corresponded called bot
01:57 <T3sl4> ahh... would a gulag joke be too inappropriate? :P
02:38 <PLRtx> Do you have a YouTube channel?
03:01 <T3sl4> i do, but not much on it
03:12 <PLRtx> No normally tell a joke: 0)
05:14 <PLRtx> I have - a YouTube channel, I post on it about technology, measuring instruments
05:42 <PLRtx> есть скайп ?
06:13 <PLRtx> Do you have skype ?
08:59 <PLRtx> By the way, quartz lamps are an ideal remedy for infection, only you need to use it carefully and you can get an ultraviolet burn, spin for no more than 1-2 minutes if the room is quartzed for 5-10 minutes
11:14 <Ampera> I used to study russian but forgot most of what little I know by now
11:23 <Ampera> all I really remember are the swears and how to say hi
17:52 <T3sl4> vodka vodka cyka blyat
17:56 <T3sl4> :P
21:15 <PLRtx> Да уж - ругаться матом, это не культурно и плохо :0(
24:41 <PLRtx> Сука - это собака женского рода, Блядь - гулящая женщина (проститутка), водка - (дешевый напиток для маргиналов и бичей состоящий из недорого не очищенного спирта от сивушных примесей и формальдегидов и воды с пропорциями 40% спирта 60% воды), )
25:28 <PLRtx> A bitch is a female dog, Fuck is a walking woman (prostitute), vodka is (a cheap drink for marginals and pests consisting of inexpensively purified alcohol from fusel impurities and formaldehydes and water with proportions of 40% alcohol 60% water),)
25:40 Join: steve31 ([email protected]) to #EEVblog
25:55 <PLRtx> Yeah - swearing, it's not cultural and bad: 0 (
26:37 Quit: steve30 ([email protected]) Ping timeout: 121 seconds
26:56 <PLRtx> vodka swill for degenerates: 0)
28:00 <PLRtx> And in general, alcohol is poison from the first category,
29:12 <PLRtx> Alcohol is a universal solvent, as well as an antiseptic, causes burns to the mucous membranes at a concentration of 70%
29:57 * steve31 has curry
30:13 * T3sl4 dips a falafel ball in steve31's curry
31:39 <PLRtx> https://www.youtube.com/user/PLRtx
33:41 <EEVBlog> New EEVBlog Tweet: No human beings can possibly climb like this. https://t.co/agQOyo8lNF
39:46 <PLRtx> You have a camping trip - late night
40:06 <PLRtx> or earlier morning ?
50:16 <steve31> OK, dare I try and install Windows 10 on my PC?
55:26 <PLRtx> And how did you fix it?
59:01 Quit: steve31 ([email protected]) Ping timeout: 121 seconds
02:08 <PLRtx> Although there is something to install, stick a USB flash drive, download the distribution kit with KMS activation, use the Maykrosovt utility to make a bootable USB flash drive, restart the PC in the BIOS, select boot from the USB flash drive and the installation starts -
37:03 Join: steve30 ([email protected]) to #EEVblog
50:18 <PLRtx> And in response to silence
50:42 <PLRtx> :0)
54:49 <steve30> I think I managed to get my new Debian 10 install pretty much functional
01:59 <PLRtx> It’s more complicated here - for a good config, do it yourself for rebuild on the kernel the most stable
26:19 Quit: steve30 ([email protected]) Quit: <Baljem> steve30: by the way, I had the most bizarre dream the other day that someone came in here and seriously flipped their shit over your quit message and why aren't the ops /doing/ something about it
28:09 Join: steve30 ([email protected]) to #EEVblog
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51:45 <EEVBlog> New EEVBlog Tweet: Just a shout out to all my viewers in Kiribati.
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22:59 <EEVBlog> New EEVBlog Tweet: This is so annoying @auspost You scan these new barcodes and you get a ridiculously long number that does NOT track, you have to manually extract the real number from the middle of the string. This cripples shipping systems. Why? https://t.co/XZhgw9A6qO
24:35 Quit: Halcyon ([email protected]) Ping timeout: 121 seconds
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37:06 <EEVBlog> New EEVBlog Tweet: Taking an entire santa sack of meters to the post box. Feels like old times. https://t.co/4wqrOhpK0P
38:59 Join: AndrevS ([email protected]) to #EEVblog
40:08 <EEVBlog> New EEVBlog Tweet: https://t.co/RJI2sckoOL
40:19 <AndrevS> morning
42:26 <steve30> hi
15:10 Quit: hsn ([email protected]) EOF from client
25:26 <T3sl4> Halcyon: https://www.reddit.com/r/aww/comments/fs5s3b/grand_entrance/
25:55 <steve30> :)
33:05 * steve30 hugs T3sl4 
33:17 <T3sl4> *stevely hugs*
38:33 <EEVBlog> New EEVBlog Tweet: Wow, found a massive thread on this @auspost barcdoe scanning problem. https://t.co/QZJ5Ah2Cgk Hey @Starshipit can you guys do this string filtering of scanned barcodes in your software?
40:10 Join: hsn ([email protected]) to #EEVblog
40:28 <hsn> hoi
40:32 <steve30> hi
44:53 <AndrevS> hoi
49:38 <EEVBlog> New EEVBlog Tweet: Wow, I've seen some horrific sub-to-view ratios in my time, but @MouserElec takes the prize! https://t.co/LcCNJ4Wjda
51:04 <T3sl4> hOI, iM t3ss1e!!!1
16:57 <T3sl4> (a reference that's probably getting rather dated, i'll admit)
18:47 <hsn> hello there t3sl4
18:48 <EEVBlog> Hello there, hsn!
18:51 <hsn> :P
19:03 <T3sl4> haha
19:04 <hsn> !
19:24 <hsn> o i got question for u T3sl4
20:03 <T3sl4> yea?
20:12 <hsn> impedance calculation need (Height) of (prepreg) to plane adjacent to the signal layer
20:21 <hsn> that plane must be (return path / gnd) ?
21:59 <T3sl4> presumably, yes
22:02 <hsn> so 6 layer board (sig top / gnd / sig // thick core // sig // power // sig bottom)
22:21 <hsn> sig bottom will refer to power plane not gnd on 2nd layer
22:41 <hsn> as trace impedance,, buut the return path is actually on layer 2
24:28 <T3sl4> right
25:48 <hsn> hmmm
26:22 <T3sl4> so, that's the great thing about planes, they're huge and loaded with bypass caps, they're equivalent for AC purposes
26:47 <hsn> equivalent for AC purposes = ?
27:34 <T3sl4> supernode
28:07 <T3sl4> doesn't matter which one the image current flows into, they act equivalently
32:47 <hsn> you mean because the signal goes low, as the trace will be pulled down so the power plane becomes a signal source and the trace signal is the (return path) ..
33:29 <hsn> i know i twisted it more xD
33:45 <hsn> that was question ^
33:51 <hsn> sorry bad english
34:21 <hsn> btw do u work these days ? how is it in US?
35:43 <T3sl4> the trace's image current can be sourced from VCC or GND because it is returned through one or the other very quickly, through the plane capacitance, or bypass caps
36:42 <T3sl4> put another way, the plane is a very wide transmission line so has a very low impedance; if the signal is intended to be with respect to GND but is above the VCC plane instead, then a voltage divider occurs where the signal trace impedance (~100 ohms?) stacks over the plane impedance (~ohms?)
37:42 <T3sl4> i work from home a lot as it is, so this really hasn't impacted me beyond slightly less frequent trips to the grocery store :P
38:52 <hsn> is it really bad .. ?? like this: https://hsn93.com/www/shaa-1.mp4 ?
40:01 <T3sl4> :D
40:18 <T3sl4> i find the juxtaposition of arabic captions over bacon amusing
41:25 <hsn> lol that how i watch netflix
42:02 <hsn> but is it like this or this is just random video that doesnt reflect reality
42:21 <hsn> or its like (depend on your neighbourhood)
43:05 <T3sl4> anyway, last time i was there, i noticed a few things on the low side, especially popular canned foods for example, and the odd pallet of rice or other stuff parked in an aisle
43:22 <T3sl4> also, eggs about doubled in price, so i just got a dozen "medium" size
44:14 <T3sl4> steve30: https://www.reddit.com/r/blackcats/comments/fs1h5a/you_guys_said_it_would_happen_and_it_finally_did/
44:51 <hsn> did u see the corona cat?
46:18 <T3sl4> not sure
47:08 <hsn> two days ago there was news about first cat get corona
48:57 <T3sl4> oh yeah, in uh, belgium was it?
49:41 <hsn> ok i did few research and read your last text 3 times .. so (power plane has very low impedance to gnd plane) .. and trace is above that power plane .. the trace impedance = Zo to power plane + power plane's Zo to GND plane .. (which is ~1ohm)
49:47 <hsn> yes belgium cat
50:45 <hsn> so trace impedance will be like (zo to power + ~1 [negligable])
51:41 <hsn> or this is only when the trace has higher voltage than the plane actually ..
52:32 <T3sl4> voltage doesn't matter, and voltage is relative
53:46 <T3sl4> you have both effects: 1 that the trace impedance isn't meaningfully different, and 2 that the signal creates a disturbance in the plane, i.e. supply ripple, which is also fairly negligible
55:09 <hsn> nice
55:35 <hsn> this also means that power planes are shields not only gnd planes
55:53 <T3sl4> yes
56:05 <T3sl4> when they say "ground planes", they really mean AC ground
56:30 <T3sl4> anything closely coupled to ground, i.e. power planes too, does equally well
59:22 <hsn> just to understand more, (AC ground = earth / protective gnd) or (middle point where signal goes + and - related to that point) or (?)
01:57 <hsn> because if i search about AC ground .. it will bring all about earth and electrical outlet .. which is not the context about here i guess
02:55 <T3sl4> look up AC equivalent circuits
03:36 <hsn> bjt analysis where they talk about small signal change
04:57 <T3sl4> this thing, https://en.wikipedia.org/wiki/Equivalent_circuit#DC_and_AC_equivalent_circuits
10:12 <hsn> aah
10:26 <hsn> i need to restudy all this
22:29 <steve30> T3sl4, nice sofa :)
26:31 <K> hello
27:34 <T3sl4> hi
32:20 Join: hsn93 ([email protected]) to #EEVblog
32:20 Quit: hsn ([email protected]) EOF from client
34:25 Join: Lemon ([email protected]) to #EEVblog
35:58 <hsn93> هلا, K
39:00 <K> what is that squiggle?
39:15 <K> one looks like X, but the other, eh...
41:00 <hsn93> our letter form shape when they are close to each other
41:03 <hsn93> letters
41:22 <hsn93> ه = هـ = ـهـ = ـه
41:35 <T3sl4> oddly enough, arabic is (correctly) printed on the right side of the window, in my client
41:38 <hsn93> ع = عـ = ـعـ = ـع
42:13 <hsn93> هـلا = hla = hi
42:36 <hsn93> how mix works T3sl4
42:59 <hsn93> so this long english senstence with one arabic letter .. where does it start from ها
43:04 <hsn93> ها so this long english senstence with one arabic letter .. where does it start from
43:21 <T3sl4> haha, it wraps... poorly
43:57 <hsn93> its good
44:28 <T3sl4> https://www.seventransistorlabs.com/Images/PidginRTL.jpg
44:53 <hsn93> its not poor thats correct
45:50 <hsn93> ـ so you can always be on left ha
45:55 <hsn93> on right**
46:41 <T3sl4> the LTR text doesn't flow with the arabic character, but just as well i suppose
48:20 <hsn93> did u know some people use mix of (apache and nginx) as web server
48:30 <hsn93> and combine both to get somthing faster?
48:35 <T3sl4> i guess?
49:07 <hsn93> cool stuff
49:18 <hsn93> the software world is complicated
49:34 <hsn93> well i mean not like hardware is easy xD
50:48 <T3sl4> hardware can be correct, software will never be
59:23 <hsn93> both are wrong if done by me xD
15:43 <EEVBlog> New EEVBlog Tweet: NEW EEVblog Video! EEVblog #1297 - Turn an LCD into E-Paper! https://t.co/QivNjl0Mmz
36:28 <steve30> ^I wondered if that might be something similar to the image retention you get on LCD computer monitors, but it could also be an April Fools Day joke.
44:14 <hsn93> or its somthing that works for that particular model as it has high capacitance with low leakage for example ?
46:24 <hsn93> steve30 : https://snipboard.io/z56PKQ.jpg u know this
49:13 Join: hsn993 ([email protected]) to #EEVblog
51:00 <steve30> nope
51:30 <K> that old ass game?
51:56 Quit: hsn93 ([email protected]) Ping timeout: 121 seconds
52:27 <hsn993> yes
52:32 <hsn993> prince of persia
53:35 <hsn993> there is also commander keen
54:29 <K> i've played both in my days
56:12 <hsn993> i've played it also
56:21 <hsn993> i dont know how
56:32 <hsn993> other people in my age dont know them :D
58:26 <hsn993> https://en.wikipedia.org/wiki/Titus_the_Fox
01:24 <hsn993> i used to clean the garden so my brother let me play for 30 minute or so
06:26 Quit: slo ([email protected]) Ping timeout: 121 seconds
07:33 Join: Ysjoelfir ([email protected]) to #EEVblog
09:05 Join: MGuest|60381 ([email protected]) to #EEVblog
09:13 <K> haven't seen that one
10:16 <MGuest|60381> Hello
11:13 <MGuest|60381> EEVblog #1297 - is it April already in Australia ? :-)
13:04 <steve30> sounds like it
16:59 Join: slo ([email protected]) to #EEVblog
18:16 Join: Yash ([email protected]) to #EEVblog
18:31 <Yash> Hello
18:45 <K> hello
19:26 <Yash> I am looking for a barcode scanning solution which can scan any bottles coming horizontally through a hole
19:54 <Yash> i have seen a video of EEEblog but couldn’t identify which camera do they use
20:54 Quit: Yash ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
33:14 <hsn993> hello there, Ysjoelfir!
36:54 <Ysjoelfir> hello there, hsn993, K, steve30 and whoever else is here :)
36:54 <EEVBlog> Hello there, Ysjoelfir!
36:58 <Ysjoelfir> weeeeee
44:10 <Ampera> I think having the bot say hello has become its most popular feature
50:08 <K> A hero we've deserved, but do not need.
50:30 <K> that doesn't narrow it down much, thought
52:52 <rust_collector> https://imgur.com/a/zgPlV2C
53:08 <rust_collector> school project...
53:16 <rust_collector> I think we need some work here
58:18 <Ysjoelfir> well, until you implement a new one, ampera :D
58:30 <Ampera> blech, but that's effort
58:34 <Ysjoelfir> rust_collector - well, it certainly works. somehow.
58:47 <Ysjoelfir> effort? eeek. ok, leave it as it is
58:55 <rust_collector> I bet the birds would be happy
59:16 <Ysjoelfir> see?
01:07 <K> it hurts, rust_collector
08:09 Quit: MGuest|60381 ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
10:43 Quit: Beni ([email protected]) Ping timeout: 121 seconds
11:04 Join: Beni ([email protected]) to #EEVblog
46:17 Join: MGuest|60381 ([email protected]) to #EEVblog
48:29 Quit: steve30 ([email protected]) Quit: <Baljem> steve30: by the way, I had the most bizarre dream the other day that someone came in here and seriously flipped their shit over your quit message and why aren't the ops /doing/ something about it
50:33 Quit: MGuest|60381 ([email protected]) Quit: http://www.kiwiirc.com/ - A hand crafted IRC client
52:04 <hsn993> i just discovered u can copy paste tracks from altium to excel ..
52:28 <hsn993> #hsn_useless_discoveries
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