hybridfree/eevblog-posts huggingface dataset:
Self publishing - Page 1
Forum section: electronics / general

author: 16bitanalogue
author_rank: Regular Contributor
timestamp: April 21, 2020, 10:39:12 pm
content: Hello All,I am curious to know if any board member self publishes (EDN, EETimes, Nuts and Volts, Circuit Cellar) etc.I am in a position where the ideal would be publishing *Current Employer* App Notes, but projects and resources have always been a roadblock; i.e., never enough time.I guess one could argue to write application notes on personal time, but self publishing ideas, circuits, test methodologies, have come to mind as well.Has anyone done this consistently? If so,What do you write about?Who do you publish to?What format do you use (WORD, LaTex, Framemaker)How difficult is it for a publisher to accept your article?

author: daqq
author_rank: Super Contributor
timestamp: April 22, 2020, 09:43:49 am
content: I have published *very* minor things a few times into a local electronics magazine (http://www.aradio.cz/) and once into Circuit Cellar ( specifically my resistance measurement method:https://www.daqq.eu/?p=1333).QuoteIf you have an interesting thought, expand upon in and write down the results. I think you are going at it from the wrong end - don't try to make a device that will make for a good read, make a good device, then write about it. It's more fun.QuoteI used Word, mostly because they wanted it that way. Various outlets will have various requirements, but I'm sure that they can be negotiated with.QuoteIt was pretty easy for my texts, since most of them were filler and the other one was a fairly complex text. There's nothing like a peer review process in hobbyist magazines.

author: 16bitanalogue
author_rank: Regular Contributor
timestamp: April 24, 2020, 01:05:45 am
content: Perhaps another option is to start a blog. I know the benefit of submitting articles 1) gets one exposure and 2) can bring in a little $$.Maybe both options are available. I will have to think about it.I have some home projects that I have been sitting on, so maybe that is a good resource to pull from.

author: SiliconWizard
author_rank: Super Contributor
timestamp: April 24, 2020, 01:20:58 am
content: A well-referenced blog will probably get you more exposure in the end than an occasional article on Circuit Cellar IMO.Now if you manage to get published in a peer-reviewed journal, that's another story as far as exposure goes, but that doesn't seem to be what you were after.

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: April 24, 2020, 02:31:19 am
content: +1 for a blog/websiteYou will find that as the blog/website grows it becomes an archive of knowledge that is always easy to reference for future projects
We actually recorded/witnessed a planetary collision without knowing at first... - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: April 25, 2020, 10:53:41 pm
content: We actually recorded/witnessed a planetary collision without knowing at first...Yes, planets actually do collide...When 200km wide asteroids collide at 25 light-years away around another star, their expanding debris is bright enough to be photographed by by the HST.

author: I wanted a rude username
author_rank: Frequent Contributor
timestamp: April 26, 2020, 03:25:25 am
content: Fomalhautb(I would be very surprised if Fomalhaut,which is a star, "disappeared") was never confirmed as an exoplanet (it's an exoplanetcandidate), and what was imaged may have been the debris cloud from some asteroids colliding. This video (and by association, the YouTube channel) doesn't seem trustworthy.https://en.wikipedia.org/wiki/Fomalhaut_b

author: BrianHG
author_rank: Super Contributor
timestamp: April 26, 2020, 03:52:54 am
content: He didn't make this up, he is just re-iterating an article he read here:https://www.pnas.org/content/early/2020/04/15/1912506117and here:https://www.nytimes.com/2020/04/20/science/fomalhaut-exoplanet-asteroid.htmlYes, I would not count him as an absolute astrologist who was involved with the study.Okay, the presenter is a fan of Astronomy and makes weekly video covering the latest publications in the science. He does use and promote 'Universe Sandbox 2' software for many of his illustrations.Yes, my thread title could have been more specific, but, I ran out of characters.Yes, Antone, narrator in video, does say it was an exoplanet candidate originally, but is now being described as the collision of what may appear to be 2 - 200km wide asteroids.

author: Electro Detective
author_rank: Super Contributor
timestamp: April 26, 2020, 04:15:03 am
content: His street dealer must have had the good stuff in stockHas NASA or anyone else verified this mash of science and sci-fi drivel ?or is it oooh....it's 'classified' mate, move on please

author: BrianHG
author_rank: Super Contributor
timestamp: April 26, 2020, 04:31:49 am
content: Quote from: Electro Detective on April 26, 2020, 04:15:03 amLOL, read the NY Times link, NASA & ESA made the video from the captured Hubble images right in the middle of the article.To see the explosion orbiting a star from 25 light years, fade into a cloud is definitely an insanely huge energetic collision.https://vp.nyt.com/video/2020/04/20/86118_1_20planet-video_wg_720p.mp4QUOTE: A simulation of the expanding and fading cloud at the Fomalhaut star that astronomers previously identified as an exoplanet, Fomalhaut b. Video by NASA, ESA, and A. Gáspár and G. Rieke (University of Arizona)

author: Brumby
author_rank: Unknown
timestamp: April 26, 2020, 04:53:38 am
content: Quote from: BrianHG on April 26, 2020, 03:52:54 amInstant zero credibility.Unless you meant astrogeologist.
What USB connector types are these? - Page 1
Forum section: electronics / general

author: 741
author_rank: Frequent Contributor
timestamp: April 18, 2020, 01:40:52 pm
content: I've labelled the images (1)...(3). I think (3) - this is the receptacle I need to buy a cable for - is micro-AB.However, (1) and (2) look a bit like micro-B - except they are nothing like physically compatible with (3).

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 18, 2020, 01:49:46 pm
content: The first two are proprietary connectors, the third is a standard micro USB.

author: wraper
author_rank: Unknown
timestamp: April 18, 2020, 01:59:00 pm
content: Those are proprietary connectors, not standard. They may also have functions other than USB.

author: 741
author_rank: Frequent Contributor
timestamp: April 18, 2020, 04:57:47 pm
content: I did not realise proprietary (but still USB related, in seems) connectors existed.I did see some on a data sheet from Adam Technologies called "MUSB-A4-S-RA-TSMT" which is somewhat like image (1)

author: wraper
author_rank: Unknown
timestamp: April 18, 2020, 05:10:05 pm
content: Quote from: 741 on April 18, 2020, 04:57:47 pmThat's usual mini USB.

author: GlennSprigg
author_rank: Super Contributor
timestamp: April 21, 2020, 01:38:23 pm
content: Have a look at...https://www.memorysuppliers.com/blogs/memory-suppliers-blog/guide-to-the-differences-between-mini-usb-micro-usb-and-usb-c

author: wraper
author_rank: Unknown
timestamp: April 21, 2020, 01:49:05 pm
content: Quote from: GlennSprigg on April 21, 2020, 01:38:23 pmNothing to do with connectors in question. Not to say 'information' is garbage.QuoteLOL

author: senso
author_rank: Frequent Contributor
timestamp: April 21, 2020, 01:49:21 pm
content: Maybe 2 is a micro-HDMI with a couple pins missing

author: wraper
author_rank: Unknown
timestamp: April 21, 2020, 01:51:54 pm
content: Quote from: senso on April 21, 2020, 01:49:21 pmMicro HDMI has way more pins. Not to say on both top and bottom.

author: newbrain
author_rank: Super Contributor
timestamp: April 22, 2020, 10:07:47 am
content: Quote from: senso on April 21, 2020, 01:49:21 pmNope, it's a so-calledUC-E6 cable, used mostly on Japanese cameras (my Nikon reflex, e.g. - that's why I recognized it...).Not at all unobtanium, but not cheap.

author: tooki
author_rank: Super Contributor
timestamp: April 23, 2020, 03:00:27 pm
content: Quote from: newbrain on April 22, 2020, 10:07:47 amNot exactly. UC-E6 is the part number for Nikon’scableusing that plug, not the connector itself, which is commonly referred to as the “8 pin mini-B” connector. (I also object to using Nikon’s part number to refer to the style, since many other digital cameras used that same connector. IIRC it predates the official mini and micro USB connectors.)Using the generic term gets far more results.I haven’t had any luck in finding out who actually makes the connector, though! Anyone got a list of Japanese connector manufacturers?
What happens when you mix water with 3 phase power  - Page 1
Forum section: electronics / general

author: johnh
author_rank: Regular Contributor
timestamp: April 22, 2020, 08:50:53 am
content: This is what happens when water leaked into a electrical risersorry don't have any better quality photos, these were given to me

author: Electro Detective
author_rank: Super Contributor
timestamp: April 22, 2020, 10:12:26 am
content: 'H30' > just add water and powerI'll bet the smell was to die for
Applications of electronics and physics  - Page 1
Forum section: electronics / general

author: R_G_B_
author_rank: Frequent Contributor
timestamp: April 27, 2020, 09:28:37 am
content: I realise designing electronics circuits and having in addition to this a good understanding of physics . The reason I come to this realisation is the application of electronics, with a physics back grounds you can design some niche products. You can make clever uses of electronics and off the shelf products such as Arduino, rasbery PI, FPGA, PSOC etc...there's a tendency to get stuck when it comes to the application of electronics that's different from the mainstream. If we are all designing similar products is there enough to go round. I hope I am making some sense. I find that I get to a point with a circuit design idea and say now how can I Implement this? Are there any others here that come to this realisation?Interesting discussion:https://youtu.be/KJi-nXtu6kQ

author: rstofer
author_rank: Super Contributor
timestamp: April 27, 2020, 03:02:03 pm
content: You can't get a BSEE degree in the US without at least 2 semesters of Physics. Some programs may also require up to 2 semesters of Chemistry. Some may not...It's not just Physics, we also had to take statics, dynamics, fluid mechanics, thermodynamics and probably more that I have forgotten, it's been a long time. You don't get any BS degree without a well rounded engineering background.

author: tooki
author_rank: Super Contributor
timestamp: April 28, 2020, 08:31:54 am
content: Quote from: rstofer on April 27, 2020, 03:02:03 pmNot entiiiiiirely true. My mom and I get a chuckle out of the fact that I have a Bachelor ofArtsin information systems (i.e. computers) and minor in linguistics (i.e. the science of language) from a very STEM-heavy university, while she has a Bachelor ofSciencein Italian literature from a prestigious university best known for diplomacy, law, medicine, and business. I assure you, she has NO engineering background!

author: SiliconWizard
author_rank: Super Contributor
timestamp: April 28, 2020, 04:21:10 pm
content: Quote from: rstofer on April 27, 2020, 03:02:03 pmYeah, the education system is a bit different over here, but basically, the same things apply. For pretty much any engineering or scientific degree, during the first two years you're going to do a lot of maths and physics. Chemistry, not necessarily, it also depends.
Tequipment Discount - Page 1
Forum section: electronics / general

author: Hoss74
author_rank: Newbie
timestamp: April 27, 2020, 10:48:39 am
content: Hi, could someone pm me the code for the 6% off at tequipment? I was lurking here for quite a while here but since I want to order something there, I would like to get the code and finally registered

author: jfiresto
author_rank: Frequent Contributor
timestamp: April 27, 2020, 12:14:40 pm
content: You could just set up an account, select the item you are interested in, and ask for a quote.Recently, I dropped an item in the shopping basket, just to see the total price and possible delivery, and left it there. A few days later, I received a quote, without even asking.

author: Hoss74
author_rank: Newbie
timestamp: April 27, 2020, 09:31:42 pm
content: Sounds like a great idea. I will try that
Dave Jones REALLY loves multimeters. - Page 1
Forum section: electronics / general

author: InductorbackEMF
author_rank: Regular Contributor
timestamp: April 18, 2020, 03:25:40 am
content: Okay so i was watching a video involving a lady who "Married" Tetris and i almost spat my drink out.Here is a small clip of it (https://youtu.be/IR29DhF0Cds)And for the full video () Time for the clip is (1.58)Just wanted to post a light hearted thing sorry if this is breaking any posting rules feel free to remove if indeed so.Alex.

author: InductorbackEMF
author_rank: Regular Contributor
timestamp: April 18, 2020, 03:26:40 am
content: Oh god did not expect the video thumbnail to pop up there sorry.Alex.

author: shakalnokturn
author_rank: Super Contributor
timestamp: April 18, 2020, 11:52:09 pm
content: Just the other day wife and I were having this discussion over the time spent at TEA.I was having trouble getting the message over that although she is very important to me the choice isn't always an easy one.Now gratefully I have this video to show her that describes the feeling better than any words I'll ever choose since they're a woman's words (...or at least I suppose they are?).That leaves me more precious time to get busy with those fuckin' multimeters

author: InductorbackEMF
author_rank: Regular Contributor
timestamp: April 19, 2020, 08:21:35 am
content: Glad to helpAlex.

author: GlennSprigg
author_rank: Super Contributor
timestamp: April 21, 2020, 01:33:15 pm
content: Quote from: InductorbackEMF on April 19, 2020, 08:21:35 amHA!!... At2:03in the video, she explains how she can measure Volts &Ampsat a power-socket!Dave likes knocking $2 multimeters, (that wasn't one), but I think she could do with one!! A dead short with herprobes would instantly blow the shit out of the internals, and cut the fault quickly!! And we need to inform herthat probes on tongue does not show her 'resistance' to stupidity. But to get a 'tingle' at least, then make sureit's on Diode-Testing mode to at least be above break-down voltage on the probes. Only in America...

author: David Hess
author_rank: Super Contributor
timestamp: April 21, 2020, 04:56:36 pm
content: Quote from: InductorbackEMF on April 18, 2020, 03:26:40 amAs far as I have been able to find, the only way to stop the forum from doing that is to link the video through a URL shortener.
University Project Help! - Page 1
Forum section: electronics / general

author: Hughes456
author_rank: Newbie
timestamp: April 21, 2020, 03:21:29 pm
content: Hi, I am a university student at the University of ulster and my final year project is based around trailer security, I am in dire need of help regarding the electronics side of it as I have next to no experience with it. Basically what my project is a security system that automatically engages the brakes once it goes past a barrier or wire into the ground, it works by turning on motors that use a rack and pinion gear system which pushes the brake shoes against the hub thus braking the trailer, (kind of like the anti theft shopping cart wheel but on a larger scale). I need to know what components I would need for this to work and how best to build it. I have tried contacting local people and businesses but with what is going on nobody is open or willing to discuss.Any help is appreciated, thanks.

author: jogri
author_rank: Frequent Contributor
timestamp: April 21, 2020, 04:56:34 pm
content: Why do it that way? It seems like a ridiculously overengineered solution, if you want to stop trailer theft just get yourself a proper trailer lock that slids over the tow hitch. And i don't see why it should be a good idea to have something that can lock up the brakes of a trailer while someone is towing it.If off-the-shelf solutions are allowed i'd simply use a electric trailer brake (like this one:https://www.etrailer.com/Trailer-Brakes/etrailer/AKEBRK-35-SA.html#exp-productdetails=.all-description), together with a battery, relay and an arduino. Get yourself a 433MHz RF kit for the arduino and just use those as beacons/barriers. Arduino on trailer recieves signal->relay goes on->trailer brakes.

author: Marco
author_rank: Super Contributor
timestamp: April 21, 2020, 05:19:59 pm
content: You've got cheapautomated RTK modulesnowadays you can connect to arduinos, either with public correction stations or even as a base station.So no real need to use 433 MHz or buried cables, just geofence.Plus you can add a modem and phone home the location of the trailer.
ESR EVB v1.1  - Page 1
Forum section: electronics / general

author: jpalmeida
author_rank: Newbie
timestamp: April 20, 2020, 10:55:20 am
content: Hi all!I have an ESR meter ESR EVB v1.1 since more than 10 years, always worked fine.Now it is not working properly.With a new 9V battery, I do the reset procedure and displays shows the normal reading "00". Than when measuring capacitors, it shows values as "40", "33", "25", randomly.Have you any idea?!Kind regards.JoaoPortugal
Civilian Ejects Himself from a Fighter Jet - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: April 20, 2020, 05:38:27 pm
content: OT but still interesting to watch.I would say that he had the retirement flight of his life.

author: Bud
author_rank: Super Contributor
timestamp: April 20, 2020, 06:54:06 pm
content: A discussion thread already exists.https://www.eevblog.com/forum/chat/wtf!!!-(french-airforce-fubar)/

author: Homer J Simpson
author_rank: Super Contributor
timestamp: April 20, 2020, 07:02:00 pm
content: Quote from: Bud on April 20, 2020, 06:54:06 pmMy bad.Mod please remove post
John Conway Passed away due to COVID19. - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: April 14, 2020, 05:33:45 am
content: No....His "Game Of Life" was a truly revolutionary inventive vision in 1970 which created a 2D universe in a computer which could create life forms which can be manipulated to do almost anything.Rest in peace John Conway.https://arstechnica.com/science/2020/04/john-conway-inventor-of-the-game-of-life-has-died-of-covid-19/https://en.wikipedia.org/wiki/John_Horton_Conway

author: joeqsmith
author_rank: Super Contributor
timestamp: April 14, 2020, 11:12:16 am
content: A pretty good book about that era is:https://en.wikipedia.org/wiki/Hackers:_Heroes_of_the_Computer_RevolutionLife running on some home made hardware.https://youtu.be/5OUfx2F43ek?t=509

author: NivagSwerdna
author_rank: Super Contributor
timestamp: April 14, 2020, 11:16:05 am
content: Sad news indeed. I learnt how to solve the Rubriks cube from a paper by Conway. (None of that Singmaster rubbish). [also wrote a Life implement for the PET whilst at school in 6502 assembler]

author: spudboy488
author_rank: Regular Contributor
timestamp: April 14, 2020, 11:39:25 am
content: Quote from: joeqsmith on April 14, 2020, 11:12:16 amA very good read.

author: Skashkash
author_rank: Regular Contributor
timestamp: April 14, 2020, 11:57:47 am
content: I have memories of doing Conway's Game of Life game on an Othello game board "by hand" with my dad back in the early 70's. This was after reading about it in Martin Gardener's column in Scientific American.Then years later, learning computers and running GOL on a TRS-80. The last time I coded a version of Life was in assembly on an AVR.Truly great stuff and a very influential man.

author: thinkfat
author_rank: Unknown
timestamp: April 14, 2020, 12:19:51 pm
content: This makes me sad. I did a project last year, creating a distributed "Game of Life" board out of individual 8x8 LED matrix displays.https://youtu.be/-deEdpXH00Y

author: MK14
author_rank: Super Contributor
timestamp: April 14, 2020, 01:25:14 pm
content: R.I.P.IR.I.P.IR PIR PRIPI.

author: mathsquid
author_rank: Frequent Contributor
timestamp: April 15, 2020, 01:34:57 am
content: I met John Conway at a conference when I was a graduate student in the late 90s. A bunch of us were at a party one night at a faculty member's house, and Conway was sitting at a coffee table with a pen and paper, and a bunch of checkers. He showed us several different combinatorial games. He was a great guy, a lot of fun, and very approachable.This hurts, especially after losing Freeman Dyson a month or so ago.

author: Sredni
author_rank: Frequent Contributor
timestamp: April 15, 2020, 10:10:15 pm
content: So, in the end he became a number.(even if ìn the death stats)I loved his "Book of Numbers".https://www.springer.com/gp/book/9780387979939
Those funny looking 'Resistor' shaped Inductors!! - Page 1
Forum section: electronics / general

author: GlennSprigg
author_rank: Super Contributor
timestamp: April 16, 2020, 02:42:52 pm
content: Most people may have seen/used them. My rapidly dwindling EyeSight (and Brainpower!) causes me many problems now! I'm talking about the little buggers that 'look' like 1/4 W Resistors, except their outer body is sort of a greenish/aqua colour!! There are4 colourband &3 colourband versions. (Australia uses 'Colour' not 'Color' xox). The 4-colour bands have the same colour order as resistors. Bands 1 & 2 indicate uH, with band 3 being the multiplier. The 4th band is a unique system of accuracy/tolerance. The 3 band devices doNOTshow a Multiplier, and the 3rd band is just an 'accuracy'.When I'm playing with certain circuit designs/tests, I have/use quite a lot of special Boards to plug into a circuit. (And YES, (joking!),I have SPECIAL leads that introduce NO Capacitance/Inductance/Resistance into the circuit! haha..). Small decade resistance boxes, Electrolytic & general capacitors, and Inductors, to substitute in circuits, like the following photo of a gang of Inductors from 1 to 1000 uH...Obviously, an Inductor must comprise of a series of windings, and I thought it was interesting when I found a YouTube video where someone had broken one apart!! to show the fine windings inside. The English & Dialog is bad, but it is what it is!!Interesting note, that he keeps talking about a LEAD Inductor, (like Lead the Metal), but he should be pronouncing it LEED, because these Inductors have Leads (Leeds) attached, like resistors!!
Youtube fecked over the Subscriptions feed. - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: April 16, 2020, 02:56:13 am
content: Righto... I noticed today, that my YouTube subscriptions feed is no longer coming in chronological order, sorted from newest to oldest video posted...In stead, they have jumbled it up, with some videos 2 minutes old, coming AFTER videos posted 6 hours ago....WHY?And Does anyone know if there is a way to STOP this idiotic behavior...It's driving me insane....If this was already mentioned, I'm sorry, I couldn't find it...

author: JackJones
author_rank: Regular Contributor
timestamp: April 16, 2020, 03:28:34 am
content: There are browser extensions that can help. I use " Subscriptions Grid For YouTube™ " and my feed works fine.

author: rdl
author_rank: Super Contributor
timestamp: April 16, 2020, 04:58:26 am
content: I realized years ago that you can't expect good web design from youtube.

author: RoGeorge
author_rank: Super Contributor
timestamp: April 16, 2020, 08:51:28 am
content: In the upper right corner of your pic, where it writes "MANAGE", there are 2 more icons.Press the last one, named 'List'.

author: Electro Detective
author_rank: Super Contributor
timestamp: April 16, 2020, 10:27:00 am
content: Looking at that feed it appears Youtube is infested with imbecilic deviants, attention seeker racists and President Trump dislikers,and not one EEVblog video ?!!I use Bookmarks and History to kick off to where the serious tech and tradie action is,the Youtube suggestions are ~still~ ok most of the time tooWhat's with the constant dump on Trump anyway? and who are these know all clowns on his case?I don't see him running away from the questions and dung flinging,maybe he's got some of the right stuff to help the U.S. get back on track, so aussies can follow suit
Apollo 13 50th anniversary - Page 1
Forum section: electronics / general

author: AlbertL
author_rank: Regular Contributor
timestamp: April 13, 2020, 11:27:26 pm
content: On this 50th anniversary of the Apollo 13 accident, you can follow the mission in "real time" here:https://apolloinrealtime.org/13/. The oxygen tank explosion occurred at Ground Elapsed Time 55:54:53.Listening to the “flight director loop“ - intercom conversations among the flight director and controllers – gives an interesting (and inspiring) perspective on the extraordinary effort involved in bringing the crew home.Another source for the flight director loop is here, in multiple parts beginning with:.

author: Gyro
author_rank: Super Contributor
timestamp: April 15, 2020, 10:03:50 am
content: Some high quality still images from inside Apollo 13, made by overlaying frames of the small amounts of cine film the took to improve the S/N. From the BBC News website...https://www.bbc.co.uk/news/science-environment-52264743
More trouble w/the Digi-Key website:  Cart keeps emptying itself? - Page 1
Forum section: electronics / general

author: cvanc
author_rank: Frequent Contributor
timestamp: April 17, 2020, 02:36:35 pm
content: I add things to my cart just about daily and let it build up until I've got enough for a sensible order. Several times in the last weeks this has failed, as apparently D-K now empties your cart automatically?!? This is becoming a real pain; now I need to rebuild the same list for the third timeAre any of you seeing the same thing?

author: olkipukki
author_rank: Frequent Contributor
timestamp: April 17, 2020, 03:56:50 pm
content: Quote from: cvanc on April 17, 2020, 02:36:35 pmNope. Usually, I logged in, add to a basket (sometimes name it), come back later via either 'Resume Basket' or go to 'Status And History' and select a previous basket from a list.

author: jpanhalt
author_rank: Super Contributor
timestamp: April 17, 2020, 04:00:16 pm
content: I had a little problem Wednesday after when I built a 2-item cart then it cleared when DK made me sign-in to order.The site seemed a little flaky compared to usual. That was about 2 PM EDT (USA).
Cleaning boards, removing flux from PCB's - Page 1
Forum section: electronics / general

author: NJ-Tom
author_rank: Newbie
timestamp: April 20, 2020, 03:00:16 am
content: I've been keeping sane during the COVID-19 isolation by working on a project, but I'm not sure how I will be able to clean boards. My current procedure:Techspray E-Line Flux Remover, scrub with toothbrush.Then rinse in a container filled with 91% isopropyl alcohol, scrub with toothbrush.Then two rinses with distilled water.There tends to be residue remaining after the flux remover that the alcohol does a reasonable job of cleaning off. (and it's fairly safe to use) Of course, it is impossible to get isopropyl alcohol anywhere, and I don't have much left so I don't want to waste it on cleaning boards.Any suggestions on how to improve my procedure / deal with the lack of alcohol? Use a different flux remover? Just use more of it?If it helps, here's what I'm cleaning up from:Solder paste: MG Chemicals 4900P-250G SAC305, Lead Free No Clean Solder PasteSolder wire: Kester 24-7068-1401, Lead Free Rosin Activated (RA) Wire Solder, Sn96.5Ag3Cu0.5Desoldering braid: Soder-Wick 80-4-5, Rosin, Non Activated (R), Lead FreeI also have to figure out an alternate way to clean the remaining paste off the stencils.
My phone won't record 1080p 30fps - Page 1
Forum section: electronics / general

author: nvidia
author_rank: Regular Contributor
timestamp: April 07, 2020, 04:57:21 am
content: i want to record 1080p 30fps on my phone but it only records 1080p 10fps variable phone uses a Samsung S5K3L8 ISOCELL sensorphone has 4gb ram and a good cpu/gpu so it should have no problem at all recording in a constant 30fpsi have tried like 4 different camera apps changing the fps to 30fps but have not had any luck

author: senso
author_rank: Frequent Contributor
timestamp: April 07, 2020, 10:19:57 am
content: Slow SD card?

author: nvidia
author_rank: Regular Contributor
timestamp: April 11, 2020, 12:43:31 am
content: Quote from: senso on April 07, 2020, 10:19:57 ami use SanDisk Ultra microSDHC Card UHS-I 32gb

author: kjr18
author_rank: Regular Contributor
timestamp: April 14, 2020, 04:52:47 am
content: Is it new? How old phone is?

author: JPortici
author_rank: Super Contributor
timestamp: April 14, 2020, 05:44:19 am
content: Even if the sensor can handle it, it's very possible that the manufacturer has disabled the function for whatever reason (like market segmentation. Two phones with the same sensor in different price brackets)

author: tooki
author_rank: Super Contributor
timestamp: April 14, 2020, 05:43:14 pm
content: And besides, the image processing of the raw sensor data usually happens outside the sensor. I checked the specs of your sensor, and it outputs raw. So the ultimate output format is determined by the camera processor in the SoC, and this could vary wildly.Since you've declined to give any info about the phone, it's kinda impossible for anyone to give you a real answer.
Japanese speaker help required - Page 1
Forum section: electronics / general

author: johnh
author_rank: Regular Contributor
timestamp: April 13, 2020, 03:50:53 am
content: A while back I asking if anybody new of any documentation for the TEAC MT Cassette Drive.https://www.eevblog.com/forum/chat/looking-for-documentation-for-a-teac-mt-2-cassette-drive/msg2796900/#msg2796900Since then I have come across this bloghttps://keikato.cocolog-nifty.com/blog/2015/03/atmnec-tk-80-b8.htmlIs there a Japanese speaker who can help me contact the author of this blog and ask if they can provide a copy of the manual that is displayedAppreciate any helpThanks john
STM32 rookie courses - Page 1
Forum section: electronics / general

author: psysc0rpi0n
author_rank: Frequent Contributor
timestamp: April 07, 2020, 07:41:14 pm
content: Hello.Anyone knows about STM32 relate courses to start learning? Like video classes, problems, examples, etc? User manuals are not for complete starters. You need to have some basic knowledge from start. I have none.I appreciate any resources.ThanksPsy

author: MasterT
author_rank: Frequent Contributor
timestamp: April 07, 2020, 09:15:42 pm
content: On-line training:https://www.stmicroelectronics.com.cn/content/st_com/en/support/learning/stm32-education/stm32-online-training/stm32f7-online-training.html

author: psysc0rpi0n
author_rank: Frequent Contributor
timestamp: April 07, 2020, 09:30:47 pm
content: Quote from: MasterT on April 07, 2020, 09:15:42 pmI'll take a look at it... ThanksWaiting for more.

author: psysc0rpi0n
author_rank: Frequent Contributor
timestamp: April 10, 2020, 03:33:26 pm
content: Quote from: MasterT on April 07, 2020, 09:15:42 pmOne question. Is there online training for F4 boards? I have an STM32F407VET I got from ebay (some boar I found using STM32F407VET6). That one is for F7, right? Or can I follow the same instructions?I also found this but the english is so, but so bad, that it's not easy to unerstand it all. Subs are completely useless.https://www.youtube.com/playlist?list=PLnMKNibPkDnGtuIl5v0CvC81Am7SKpj02

author: enz
author_rank: Regular Contributor
timestamp: April 10, 2020, 03:46:33 pm
content: https://mcuoneclipse.com/did some very usefull tutorials.You have to look in the archive though, because they are sometimes a couple of years old, still valid of course.But there is some very good information to find.

author: psysc0rpi0n
author_rank: Frequent Contributor
timestamp: April 11, 2020, 06:53:19 pm
content: Quote from: enz on April 10, 2020, 03:46:33 pmI found 2 entries so far.Titles are:Is Developing for ARM more difficult than for other ArchitecturesandA new Freedom Board: FRDM-K20D50M with ARM Cortex M4The first is more generic and the second is about Cortex M4 which is the one my board has.
anyone good at statistics or experimental design? - Page 1
Forum section: electronics / general

author: engineheat
author_rank: Frequent Contributor
timestamp: April 10, 2020, 06:50:02 pm
content: Let's say you want to optimize a manufacturing process to minimize defect, by doing an experiment with different settings of a certain variable. Suppose for each setting, you product 100 parts, and make note of the defect rate. Let's say your experiment is composed of 10 different settings, and after all it's done, you make use of the setting that gives the least defect. But is there a rigorous statistical test to truly tell whether the outcome didn't happen due to chance?And here's a related scenario. Suppose you want to optimize the current process. Based on the history of the previous 10000 parts made, you know the defect rate is x%. You use a new process, but due to expense, you only make an experimental run with 500 parts, and you get a defect rate of y%. What statistical test can you use to determine if the new process truly had an effect?Thanks

author: ogden
author_rank: Super Contributor
timestamp: April 10, 2020, 07:18:57 pm
content: First you have to properly understand everything about your defects. Unit that do not work may have more than single defect. When you get data about your defects right - THEN you think how to fix (causes of) them. Good place to start:https://www.itl.nist.gov/div898/handbook/index.htm. Defects differ as well: 1) visual: like paint scratched 2) functional: like helper system for lazy do not work as expected 3) safety: like car "autopilot" kills everybody onboard
Overseas Mask Testing  - Page 1
Forum section: electronics / general

author: LaserSteve
author_rank: Super Contributor
timestamp: April 10, 2020, 02:00:35 pm
content: My Google skills are pretty good, but as you know they optimize searches on a personal basis or um, bias. I'm coming up dry on this one. Can some one find me a facility in Asia that can test N95 with FDA or OSHA or other US certification for the NIOSH mask standard. Must not be tested in China.My friend has a donated budget to import masks to the US, but FDA told him the mask `must be tested overseas, and NOT in China. Masks can be made in China, but they must touch another international port first for testing, prior to import to the US.So Japan, Taiwan, Korea, etc.I'd rather test them here in the US, but they evidently will not make it past Customs, even on Bond for testing.I'm spending full time on getting a mothballed laser cutter going to make faceplates for shields (60,000 units) at the request of our local county health department, so I'm out of time to work on the import issue for my friend's project.Thanks,Steve

author: LaserSteve
author_rank: Super Contributor
timestamp: April 10, 2020, 02:23:57 pm
content: From what he is finding out, one end of the FDA does not know what the other end is doing. Tail wagging Dog. We had to go through another state's governor's office just to get FDA to call back. FDA is a huge organization.He has even had an Engineer friend in China bravely visit three mask plants looking for the best. Has the funding, has the shipping. But needs the Cert.Steve

author: rstofer
author_rank: Super Contributor
timestamp: April 10, 2020, 02:31:45 pm
content: Quote from: LaserSteve on April 10, 2020, 02:23:57 pmNot only does the left hand not know what the right hand is doing, it doesn't even know there is a right hand. If it did know about the right hand, it wouldn't care.
Sencore PS29 pictures, need information - Page 1
Forum section: electronics / general

author: hitachi8
author_rank: Contributor
timestamp: August 14, 2011, 06:00:55 pm
content: hello EEVblog-er,i got a Sencore PS29, that i repaired many time during the last year (capacitor, bad connection...).i just wanted to know if anyone had the User Manual or some Schematics, cause i searched all over the internet and i didn'tfound any picture or information about this 'scope.here's my contribution to the community (pictures):hope it will be some help for someone.

author: pnv57
author_rank: Contributor
timestamp: April 08, 2020, 03:48:44 am
content: Sorry in advance for this thread resurrection. I have a PS-29 as well, and lost the documentation for it for years, and was in the same boat as you. Guess what turned up today? I scanned them, put them on archive.org, and hopefully BAMA as well. The archive.org link is this:https://archive.org/details/ps29_20200407/mode/2up

author: fcb
author_rank: Super Contributor
timestamp: April 08, 2020, 07:45:28 am
content: That is such a cool looking scope.
When an engineer got stuck at home - Page 1
Forum section: electronics / general

author: raminrajabi
author_rank: Contributor
timestamp: April 07, 2020, 08:46:52 pm
content: In these coronavirus days stuck at home create your own game at home with your electronic tools and link it down belowhttps://youtu.be/w31gyYE2fr4

author: Smokey
author_rank: Super Contributor
timestamp: April 07, 2020, 10:56:10 pm
content: Duck hunt!!!

author: ebastler
author_rank: Super Contributor
timestamp: April 08, 2020, 05:50:28 am
content: Next, try to build an analog version which "presses a key" by shorting out a contact on your physical keyboard. No Arduinos, only discrete transistors allowed!
What's this on the main site page? - Page 1
Forum section: electronics / general

author: Gixy
author_rank: Regular Contributor
timestamp: April 07, 2020, 07:10:56 am
content: The last video on the main page shows often this message those days:'Sorry, there was a YouTube API error: Daily Limit Exceeded. The quota will be reset at midnight Pacific Time (PT). You may monitor your quota usage and adjust limits in the API Console:https://console.developers.google.com/apis/api/youtube.googleapis.com/quotas?project=303609558254Please make sure you performed the steps in this video to create and save a proper server API key.'Have I something to do?

author: Brumby
author_rank: Unknown
timestamp: April 07, 2020, 11:48:59 am
content: Sorry - I've never seen anything like that.

author: Gixy
author_rank: Regular Contributor
timestamp: April 14, 2020, 06:40:27 am
content: Now the main site is showing this error permanently. No access to the latest video.

author: Whales
author_rank: Super Contributor
timestamp: April 14, 2020, 07:46:17 am
content: I've seen this a few times before.I think it's Youtube complaining that the video embeds on the front page are being looked at too much.
Free App To Recovber Files From Sd Cards - Page 1
Forum section: electronics / general

author: nvidia
author_rank: Regular Contributor
timestamp: October 20, 2018, 01:30:32 am
content: hey guys found some of my old sd card and wanted to recover some files off them I may have deletedany free program out there I could use?

author: Halcyon
author_rank: Unknown
timestamp: October 20, 2018, 01:44:17 am
content: If it's just photos, videos and other mediaQPhotoRecis probably your best option.Runtime Software also made a free version of their GetDataBack software called GetDataBack Simple 1.02, but I'm not sure if they offer it anymore. You might be able to find a link to the previous version.

author: nvidia
author_rank: Regular Contributor
timestamp: October 20, 2018, 02:11:46 am
content: Quote from: Halcyon on October 20, 2018, 01:44:17 amthanks I will give PhotoRec 7.1 a try will it work on formatted sd card I know 2 or 3 where formatted because I wanted to use in another camera but never did

author: Halcyon
author_rank: Unknown
timestamp: October 20, 2018, 04:48:44 am
content: Quote from: nvidia on October 20, 2018, 02:11:46 amFormatting almost never actually overwrites data on a storage device, it just recreates the partition table and marks the rest of the disk empty for overwriting leaving most/all of the data intact.

author: BradC
author_rank: Super Contributor
timestamp: October 20, 2018, 07:01:04 am
content: Quote from: Halcyon on October 20, 2018, 04:48:44 amTrue, but it wipes the FAT so any files that were fragmented are pretty hard to recover as there is nothing left to link the fragments. There are a few apps good at recovering contiguous files though.

author: magic
author_rank: Super Contributor
timestamp: April 07, 2020, 07:17:49 pm
content: Time doesn't matter unless you write new data to the card. If new data end up written to the exact same location as a deleted file then you won't get the deleted file back, except for cases of extreme luck and extreme hardware hacking.Quote from: Halcyon on October 20, 2018, 04:48:44 amThis is true for a "quick" format. If you format using a camera, many of them will be happy to do a "low level" format which issues trim commands to the card and makes data almost unrecoverable.
How is shielding done on wireless charging products? - Page 1
Forum section: electronics / general

author: MrOmnos
author_rank: Frequent Contributor
timestamp: April 06, 2020, 06:17:34 pm
content: Hi folks, I was thinking of implementing wireless charging in one of my projects using QI standard. I was going through WPC specification on wireless charging and where they mentioned shielding but don't really much about its done. I have a device that requires regular charging I don't have space for conventional connectors on it and decided wireless charging was the way to go. Initially I thought I was going to design a PCB which receive coil on one side of PCB and QI charging circuit on the other side of PCB using one of TIs QI chips. But now I am wondering if I do so, wouldn't the traces on on the other side and other non charging circuit and traces will have eddy current induced in them and heat them out. This could possibly set fire to my device. How do smartphones and smart watches and other devices get around this problem?

author: MrOmnos
author_rank: Frequent Contributor
timestamp: April 06, 2020, 06:40:48 pm
content: Found thishttps://electronics.stackexchange.com/questions/221774/wireless-power-coil-is-this-shielding-field-shapingpost explaning everything. Thanks!!

author: jmelson
author_rank: Super Contributor
timestamp: April 07, 2020, 02:06:19 am
content: Quote from: MrOmnos on April 06, 2020, 06:17:34 pmWell, the last one I looked at, it WASN'T! And, an AM radio anywhere in the room was totally blanked out. An FM radio was clearly interfered with when close to the charger. This was on something that a guy was going to have manufactured for use by the police. I told him if it blanked out the radios at the police station, they were not going to be real happy (not to mention the FCC).Jon

author: Marco
author_rank: Super Contributor
timestamp: April 07, 2020, 11:07:24 am
content: Assuming for a moment it's being driven by a decent sinusoidal signal without too much harmonics it's almost purely a magnetic field, the coil is too small to be an efficient antenna. The magnetic field will induce bugger all in a trace. As for eddy currents losses in bigger pieces of metal like the ground plane or casing, just cost of doing business.They do kW charging of cars, it doesn't burn the paint off.
A Teardown of a Tesla Model Y by Sandy Munro - Page 1
Forum section: electronics / general

author: bw2341
author_rank: Regular Contributor
timestamp: April 06, 2020, 08:02:23 pm
content: Sandy Munro of Munro & Associates is tearing a Model Y apart on a new Youtube channel. It looks like off the cuff videos about things that he finds interesting. Mostly, it's about how the Y differs from the 3 and build quality complaints.Not much yet for an EE as it is not his specialty.One cool thing is that the Y has a metal conduit for the charge port to charger cable. According to Munro, this should be cheaper and lighter than the tough rubber jacketed cable on the 3 and be cheaper and easier to install.https://www.youtube.com/channel/UCj--iMtToRO_cGG_fpmP5XQhttps://munrolive.com/https://leandesign.com/
Everything we know about the Dyson CoVent ventilator - Page 1
Forum section: electronics / general

author: Black Phoenix
author_rank: Super Contributor
timestamp: April 06, 2020, 03:57:25 pm
content: I don't know if this was already published here:https://hexus.net/ce/news/general/141073-everything-know-dyson-covent-ventilator/
Home Page gone weird for brief period :o  - Page 1
Forum section: electronics / general

author: Electro Detective
author_rank: Super Contributor
timestamp: April 05, 2020, 08:38:48 am
content: Did anyone cop this yesterday? it appeared briefly and whooosh, gone!Apparently someone by the name of 'davidfarmer3757'pretending to be Korean, perhaps to try stir trouble here,posting multiple threads with asian hieroglyphicsas you see in the picture

author: Ian.M
author_rank: Super Contributor
timestamp: April 05, 2020, 08:49:53 am
content: Google translated it to Korean sex trade spam. I (and no doubt several others) reported it accordingly.

author: Electro Detective
author_rank: Super Contributor
timestamp: April 05, 2020, 10:53:25 pm
content: Are they appealing to voluntary home detention p0rn perv wankers during the Social Distancing 'C'risis ?easy click dollars for davidfarmer3757 ?
How about this dashboard symbol? - Page 1
Forum section: electronics / general

author: Zeyneb
author_rank: Regular Contributor
timestamp: April 05, 2020, 08:25:42 pm
content: Hi there,I hope you like this post. So I have a car, a Peugeot 205 from 1995. And I decided to get the instrument cluster out to replace some indicatior bulbs. Also I took the time to fully document the wires going to the cluster. There are some repair manuals on this car but regarding electrical stuff they s*** hell.My car is for gasoline fuel but the instrument cluster also has the ability to display some warning lamps regarding an diesel engine. For example: Water in fuel filter and a pre-heat active. There is also a pretty obscure warning lamp which didn't have a fitting mounted in the rear panel.So I was able to make it lit by looking at the rear board. It looks like some laboratory glassware with a droplet. Do you know what this dashboard symbol means? It is in the top right corner of the fuel gauge.Regards, Zeyneb

author: helius
author_rank: Super Contributor
timestamp: April 05, 2020, 08:32:49 pm
content: That is an oil temperature warning light.PS. you need to resize your image to something that doesn't require a 30" screen to view (the image posted is 5312 × 2988 pixels).
MOVED: 1x, 10x, 100x Scope Probe ITSELF quality/safety?? - Page 1
Forum section: electronics / general

author: gnif
author_rank: Unknown
timestamp: April 04, 2020, 01:28:45 pm
content: This topic has been moved toTest Equipment.https://www.eevblog.com/forum/index.php?topic=236122.0