hybridfree/eevblog-posts huggingface dataset:
More Useless and Hilariously Stupid Gadgets  - Page 1
Forum section: electronics / general

author: Cyberdragon
author_rank: Super Contributor
timestamp: June 06, 2017, 01:52:05 am
content: More hipster gadgets to laugh at...the table was pretty dope untill it said "we are planning to add TV compatability"...

author: mdszy
author_rank: Unknown
timestamp: June 06, 2017, 01:58:27 am
content: That coffee table makes me want to just strap a bluetooth speaker, USB chargers and a minifridge to an existing coffee table... for way less than $1300!

author: xrunner
author_rank: Super Contributor
timestamp: June 06, 2017, 02:01:30 am
content: Rinser - WANT.

author: Muxr
author_rank: Super Contributor
timestamp: June 06, 2017, 02:44:58 am
content: That toothbrush provided it works is pretty cool. But I love the first product, it's already where it belongs, in a trash bin. I like how the bitten apple had a bar code on it. <facepalm>

author: trophosphere
author_rank: Frequent Contributor
timestamp: June 06, 2017, 05:38:01 am
content: The most impressive thing on that video was the toothbrush.

author: Muxr
author_rank: Super Contributor
timestamp: June 06, 2017, 05:57:23 am
content: Quote from: Mr.B on June 06, 2017, 04:15:51 amUnless his teeth left a barcode imprint I don't see how that worked.

author: Cubdriver
author_rank: Unknown
timestamp: June 06, 2017, 07:43:45 pm
content: The induction heater is kind of neat. Not north of $100 neat, but still very clever.-Pat

author: Mr.B
author_rank: Unknown
timestamp: June 06, 2017, 07:44:10 pm
content: Quote from: Muxr on June 06, 2017, 05:57:23 amI agree that the video is BS... Who would want to track the fact that they had eaten an apple anyway...I was simply pointing out that a barcode on an apple was not really a <facepalm> thing.The company I work for handles many thousands of tonnes of export apples on behalf of exporters such as ENZA, MrApple, Luvya, etc.Some varieties for some destination countries are barcoded.

author: mdszy
author_rank: Unknown
timestamp: June 06, 2017, 07:45:32 pm
content: Quote from: Mr.B on June 06, 2017, 07:44:10 pmThey mention it's voice controlled too. They mute the audio in the original, but you can tell he's dictating to the device when he tosses the apple.
Take on Me by the Floppotron! - Page 1
Forum section: electronics / general

author: noidea
author_rank: Unknown
timestamp: June 05, 2017, 01:12:17 pm
content: I had some time to kill whilst waiting for my wife to do some shopping today and was browsing YouTube. For some reason yt decided to serve up this recommendation for me and as it's electronics based I thought it was worth sharing.https://youtu.be/oqwZzuOXYPUIf you're not a child of the 80s and hate A-ha then he's done heaps of other tunes too. More info on how he made it is herehttp://silent.org.pl/home/2016/07/06/return-of-the-floppies/

author: T3sl4co1l
author_rank: Super Contributor
timestamp: June 06, 2017, 12:05:22 am
content: Now, I knew "in a day or TWOOOOOOOOOOOO" is an impressively high note... but seeing an Arduino-driven stepper motor have to take it an octave low,dayum!Tim
Internet button on ESP8266 and Amazon AWS IoT in 2 minutes - Page 1
Forum section: electronics / general

author: novlean
author_rank: Newbie
timestamp: June 06, 2017, 11:46:42 am
content: This 2-minute video demonstrates how to implement Internet button with Mongoose OS, ESP8266 and Amazon AWS IoT:https://youtu.be/nA3tGsSFngcMore info:https://mongoose-os.com/blog/internet-button-on-esp8266-and-amazon-aws-iot-in-2-minutes/

author: ivaylo
author_rank: Frequent Contributor
timestamp: June 07, 2017, 06:20:25 am
content: Thanks for sharing...

author: Nusa
author_rank: Super Contributor
timestamp: June 07, 2017, 08:12:09 am
content: The guy seems to be a forum marketer for Mongoose. Not saying anything for or against the product, I just noticed the pattern, and his post history confirms it.This post is a duplicate of his first post on May 20.
another 5 oddball suggestions from an electronics hobbyst - Page 1
Forum section: electronics / general

author: jonovid
author_rank: Super Contributor
timestamp: June 05, 2017, 05:05:06 pm
content: 1talking refrigerator magnets.this one is so simple its just a audio chip unit with 0.2watt speaker,two AA calls, two button switchs and a mercury switch.pull the refrigerator door & inertia of the mercury, trips the switch inside the enclosure, playing the audio recorded message.note- the mercury switch must be encapsulated in plastic foam. so if the talking magnet unit falls on the floor.2the electronic Wheelie Bin reminder.this is a mercury switch and a wireless doorbell circuit on the bottom of your Wheelie Bin in a box.a indoors Blinky LED reset circuit tall's you if the bin has moved.3skateboard dvr sports bullet camera, must be rugged construction to survive.. so why not!4jumbo size RGB spray painter for walls and shop front signage. works like a color printer and uses fuel injection type nozzles.spraying cyan, yellow, magenta, white , and black paint.-automotive fuel injection circuits and painter software.5digital fire the electronic candle flame. the beauty without the fire.this is a LED candle with animated 3 color flame. blue ,yellow , and warm white in a transparent leaf shape.atop a white tube with a light bulb base.

author: jwm_
author_rank: Frequent Contributor
timestamp: June 05, 2017, 06:21:41 pm
content: These sound like fun weekend projects. Number 4 is probably the most ambitious and more like a month long thing and I wouldn't expect stellar results. Number 5 can be bought in store already, many restraunts use them. Some even have breath sensors so you can “blow“ them out. Oddly enough, you also blow them on. Not that it wouldn't be a fun project anyway.

author: Cyberdragon
author_rank: Super Contributor
timestamp: June 05, 2017, 09:16:22 pm
content: Number 5 already exists, check out Bigclivedotcom's channel.

author: MK14
author_rank: Super Contributor
timestamp: June 05, 2017, 09:54:26 pm
content: Quote from: jonovid on June 05, 2017, 05:05:06 pmHere's one (done many decades ago, when computers still had starting handles) currently set up with all black inks, rather than RGB:https://youtu.be/nN9wNvEnn-Q?t=1216Anyway, a nice/clever set of ideas

author: station240
author_rank: Unknown
timestamp: June 05, 2017, 10:19:46 pm
content: #4 was also done by the Mythbustershttps://www.discovery.com/tv-shows/mythbusters/videos/mona-lisa-mona-lisa
555 Timer T-Shirt campaign - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: April 30, 2013, 11:49:40 am
content: I've added my 555 timer T-Shirt to Teespring:http://teespring.com/555timer-greyOnly US$15You only have 7 days to get this price though.I was only charged $4.10 for DHL delivery to oz for two shirts.

author: smashedProton
author_rank: Frequent Contributor
timestamp: April 30, 2013, 05:04:44 pm
content: BeautyOut of curiosity, what margin are you getting per shirt?

author: EEVblog
author_rank: Unknown
timestamp: May 05, 2013, 11:41:43 am
content: Quote from: smashedProton on April 30, 2013, 05:04:44 pmAbout $7 a shirt for 100+

author: Harvs
author_rank: Super Contributor
timestamp: May 05, 2013, 12:04:06 pm
content: These campaigns are great. Makes it a good deal for an interesting tee, and I hate clothes shopping at the best of times...

author: SeanB
author_rank: Super Contributor
timestamp: May 05, 2013, 01:23:52 pm
content: $3.85 for shipping to ZA for me. Pretty good there.

author: nessatse
author_rank: Regular Contributor
timestamp: May 05, 2013, 01:37:37 pm
content: Quote from: SeanB on May 05, 2013, 01:23:52 pmIf you change the country to South Africa, the shipping goes up to $10.50. A little too rich for me unfortunately.

author: SeanB
author_rank: Super Contributor
timestamp: May 05, 2013, 01:52:48 pm
content: Nope, just checked..... South Africa, charge was $3.85. Card got billed that amount as well. Might be because I have another on order as well, so they might well be including them all in one shipment. If Dave is getting about half the cost that is good.

author: EEVblog
author_rank: Unknown
timestamp: May 05, 2013, 02:15:40 pm
content: Quote from: wilfred on May 05, 2013, 01:38:29 pmI've been charged $4.10 via DHL twice now, and $10.50 also via DHL once. Crazy

author: floobydust
author_rank: Super Contributor
timestamp: June 03, 2017, 04:22:16 am
content: I just got my 555 t-shirt! I feel like one of the cool kids now.Oh wait- this thread is 4 years oldWhat's on the next EE t-shirt? Need more blingLM3909 uA709 or 741?

author: Halcyon
author_rank: Unknown
timestamp: June 03, 2017, 06:28:34 am
content: Quote from: floobydust on June 03, 2017, 04:22:16 am+1Perhaps time for another round Dave?

author: Halcyon
author_rank: Unknown
timestamp: June 03, 2017, 07:18:24 am
content: Quote from: wilfred on June 03, 2017, 06:36:28 amI partially agree with this, although I missed out on the first run. Maybe the next round can be a LM556 ;-)

author: floobydust
author_rank: Super Contributor
timestamp: June 05, 2017, 08:23:23 pm
content: I have tons of ideas for new T-shirts, but... this begs the next level- I would say an EEVblog storeI want my EEVblog screwdriver, bumper stickers, baseball cap, clipboard, flashlight, resistor assortments, toolbox, test leads and all that good stuff that hopefully Dave has found useful. The multimeter I am patiently waiting for. Hmmm beer mug.
1981 Delorean DMC12 up for auction in Tasmania [AU] - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: June 02, 2017, 02:53:51 am
content: http://www.tullochs.com/collector-car-aussie-muscle-barn-finds-and-motorcycle-auction/1981-delorean-dmc12/There is also one listedfor salein Queensland.

author: TheSteve
author_rank: Unknown
timestamp: June 02, 2017, 06:24:12 am
content: Looks great - a nice early 81 with black interior. Sadly it has the lame 3 speed auto. If you get a DeLorean you really want the 5 speed manual.

author: Miyuki
author_rank: Frequent Contributor
timestamp: June 02, 2017, 10:13:14 am
content: I would like it with auto. I have 3 speed auto in old Opel and its nice fluent rideJust why they are so expensive in Europe

author: skarecrow
author_rank: Regular Contributor
timestamp: June 02, 2017, 01:02:28 pm
content: But the automatic isn't capable of reaching the necessary 88mph. One can only achieve that with the 5 speed.Sent from my XT1565 using Tapatalk

author: james_s
author_rank: Super Contributor
timestamp: June 05, 2017, 03:25:25 am
content: I absolutely *loathe* slushboxes, I cannot imagine why anyone would want one in a sports car, it takes all the fun out of driving. You don't even really drive an automatic, you just sort of aim.

author: wasyoungonce
author_rank: Frequent Contributor
timestamp: June 05, 2017, 03:41:51 am
content: Thats where Marty left it...Ill tell the Doc.

author: Halcyon
author_rank: Unknown
timestamp: June 05, 2017, 08:51:58 am
content: Quote from: james_s on June 05, 2017, 03:25:25 amTo be fair, as slow and as mediocre the DMC12 was, these days it's the sort of car that is rarely driven (and if you do drive it, you'd drive it gently and as far away from other cars as possible). In fact, you'd probably design yourhousearound the car, not because the car itself is special, but what it resembles. BTTF is among the best movies of all time. It's definitely my "desert island" movie.

author: james_s
author_rank: Super Contributor
timestamp: June 05, 2017, 02:52:23 pm
content: That would be even more reason to want the manual version since the car in the movie had a manual.
Zenith 412V AM/FM radio repair - Page 1
Forum section: electronics / general

author: jcrubin
author_rank: Frequent Contributor
timestamp: June 05, 2017, 12:18:52 pm
content: Here are the videos for the Zenith radio that i'd repaired. Apparently made in Korea by then, it was one of those jobs that you were afraid to work on because it was built so cheap you didn't want to make anything worse.anyway, SUBSCRIBE TODAY!VIDEO 1 of 3VIDEO 2 of 3VIDEO 3 of 3
When you have too many Digilent modules - Page 1
Forum section: electronics / general

author: Ushiwaka
author_rank: Regular Contributor
timestamp: June 04, 2017, 11:59:02 am
content: I present to you, the great wall of Digilent!

author: Syntax_Error
author_rank: Regular Contributor
timestamp: June 04, 2017, 04:10:53 pm
content: Nice.You must be a long time Digilent customer or you may have a bit of a dev board binge problem.

author: Ushiwaka
author_rank: Regular Contributor
timestamp: June 05, 2017, 01:14:13 am
content: I got boards and mods dating back to '04
Power Banks Zendure or Anker ? - Page 1
Forum section: electronics / general

author: PowerNet
author_rank: Regular Contributor
timestamp: June 04, 2017, 12:21:30 pm
content: Hi guys,Realised I need a good reliable Power Bank but unsure what is a good and reliable brand, there are so many of them around these days very hard to chose. Does anyone have or recommend any ?Iv been reading and the two I found are:1. Zendure A8 QC 26800mAh2. Anker Astro E7 26800mAhIm swinging towards the Zendure because its got Charge-Through feature and nice digital display showing battery status.What are you guys using ? any ideas ?thanks
Strange phenomenon for a newbie like me - Page 1
Forum section: electronics / general

author: viktor18
author_rank: Regular Contributor
timestamp: June 03, 2017, 01:00:23 pm
content: I was recently introduced to transistors, and was assigned a task to make a circuit with Darlington pair transistors.So the idea was to place your finger between the 100k ohm resistor and the positive cable to light up the led. It worked great, it lit up. Although, I ran into an issue that left a newbie like me with a lot of questions. If I touched the resistor without having the positive lead between, it still lit up, as the book stated, it will happen (but only for a short second because of the charge that was built up on my fingers).. but it kept being lit, forever.I quickly realised that this only happened while keeping the circuit on my desk.. But it wasn't lit if I didn't touch it.. I had to touch it and it had to be on my desk.It's a electric table with adjustable height, and after a while, I figured out that the outlet the table was connected to didn't have proper earth pins. So I switched outlet to one that had proper earth and walla, the led didn't light up anymore when I touch it.Could someone explain this phenomenon.. It surely left a newbie like me wondering.

author: Vtile
author_rank: Super Contributor
timestamp: June 03, 2017, 01:39:56 pm
content: It were propably the capacitive (and other so called parasitic coubling) from the electrical wiring of the table that kept the circuit turned on, based on your description. Other couse might have been static build up on the table that were discharged to ground when you did properly ground the table, but when you say that it does have electrical motor to adjust its hight I don't believe that static build up would have been what you did see.The insulation between wires or wire and metal frame where they are, is not insulation if you look at it sensitive enough equipment, like your darlington amplifier in this case.

author: X
author_rank: Regular Contributor
timestamp: June 03, 2017, 02:10:46 pm
content: Almost 20 years ago I designed and built a flash, and I discovered that it fired every time I touched the control wire, connected directly to the SCR gate terminal.The Darlington pair in your example amplifies the current by a large factor (usually at least 1000x) and so even the AC mains hum from power lines that is picked up by your fingers will be amplified as it flows to ground. The current here is produced when your body "picks up" the mains hum, and whatever other RF or electrical noise is around you, just like a giant non-contact voltage test stick.You can get around this by using a pull-down resistor (connected between the base of Q1 and ground). Around 100K should do the trick, but adjust based on your expected input signal.
Strange Behavior on BM235 and Fluke 73 in fairly close proximity to Ignition Sys - Page 1
Forum section: electronics / general

author: bji900
author_rank: Contributor
timestamp: June 02, 2017, 03:37:47 pm
content: So I observed strange behavior on my BM235 this weekend. I was diagnosing what I thought was a charging system problem and wanted to monitor the battery voltage of my JS550 stand up Jet Ski. The meter would reset and act strange. I would recieve input error, random restarts, and meter latch up. All of this appears to be the result of noise from the engine ignition system. I also tested it on a seperate Fluke 73 and had similar strange behavior. However the Fluke appeared to handle the noise better, it still got confused but appeared to continue to monitor voltage appropriately. This is something that I have not seen discussed before and thoguht it would be interesting to have some discussion on the matter. Please see the attached video of the described behavor.https://youtu.be/jSeziECfvCI
Playing w ESP8266 / ESP32 - new Mongoose OS tool features: JS API, RPC, terminal - Page 1
Forum section: electronics / general

author: novlean
author_rank: Newbie
timestamp: June 02, 2017, 12:07:41 pm
content: Developing for ESP8266/ ESP32?Check out new Mongoose OS tool features:1) JS API autocompletions2) RPC browser3) Terminalhttps://mongoose-os.com/blog/new-mos-tool-features-js-api-autocompletions-rpc-browser-terminal/1.JS API autocompletions2. RPC browser3. Terminal
firmware for zd915 solder station converter in hex - Page 1
Forum section: electronics / general

author: audio86
author_rank: Newbie
timestamp: May 31, 2017, 07:02:29 am
content: hi at all member of the forum i have a problem for the firmware for solder station zd-917 my board zd-lty-6 have the mcu c8051f310 dead and i change the mcu but the firmware i search and have only in .c i have the programmer for reprogramm the mcu and i don't have the file in hex. i add the firmware in c and please converter in hex. thanks fot the your time

author: voltsandjolts
author_rank: Unknown
timestamp: May 31, 2017, 08:12:03 am
content: Silicon Labs used to give out free Keil licenses, maybe not anymore?solderstation.zip has a .hex file in it, so I guess it is the other project (ss_v2.zip) which you are interested in.

author: audio86
author_rank: Newbie
timestamp: May 31, 2017, 08:22:30 am
content: hi i try and report tell me the size of this file my programmer accepr 15mb size

author: audio86
author_rank: Newbie
timestamp: May 31, 2017, 05:20:42 pm
content: the file no work when i write in the mcu the display no work have the firmware for this solderstation? my solder station is zd 982 help me please
Google IoT Core cloud and ESP32/ESP8266 setup with Mongoose OS - Page 1
Forum section: electronics / general

author: novlean
author_rank: Newbie
timestamp: May 31, 2017, 02:05:38 pm
content: This post describes on how to setup ESP32 or ESP8266 module Google IoT Core cloud.https://mongoose-os.com/blog/mongoose-os-google-iot-esp8266/
Question about Falstad NE555 pinout - Page 1
Forum section: electronics / general

author: kalel
author_rank: Frequent Contributor
timestamp: June 08, 2017, 02:37:36 am
content: Falstad has some nice NE555 timer circuits which you can modify and play around with, but I would like to ask bout connecting the same pins on a real chip.I have checked this page:http://www.ti.com/lit/ds/symlink/ne555.pdf(Page 3, package on the left is what I have some of)And would like to confirm the Falstad markings with you,e.g. here:http://tinyurl.com/yc6zqprdVin = Pin 8 (vcc)dis = Pin 7 (disch)tr = Pin 2 (trig)th = Pin 6 (thres)ctl = ?rst = Pin 4 (reset)out = Pin 3 (out)

author: alsetalokin4017
author_rank: Super Contributor
timestamp: June 08, 2017, 03:03:14 am
content: "ctl" is Pin 5, called "CONT" in the TI datasheet. Both stand for "control".
Need Firmware for solder station zd-982 - Page 1
Forum section: electronics / general

author: audio86
author_rank: Newbie
timestamp: May 31, 2017, 06:35:19 pm
content: Hi at all member of The forum I need have The firmware for main board zd-lty -6 on solder station zd-982 this main board have mcu silicon Lab c8051f310 but i don't have the firmware for this mcu please help me.thanks
hacking CBS TV in 1987 video - Page 1
Forum section: electronics / general

author: yada
author_rank: Frequent Contributor
timestamp: May 28, 2017, 07:03:41 pm
content: Do you remember this? This is the strangest thing I have ever seen. I read on redit that someone who knew the guy said he was autistic but who knows. Definitely odd.https://youtu.be/tWdgAMYjYSs

author: W2NAP
author_rank: Unknown
timestamp: May 29, 2017, 01:47:45 am
content: wasn't CBS. it was WGN (ind.) Channel 9 Chicago and then WTTW PBS channel 11 Chicago

author: Halcyon
author_rank: Unknown
timestamp: May 29, 2017, 09:23:42 am
content: There have been a number of well documented"Broadcast Signal Intrusion Events"in the past. Very interesting to read about. Slightly off-topic, but if you haven't seen the moviePump Up The Volume, it's well worth seeing at least once.
EEV blog chat is down! - Page 1
Forum section: electronics / general

author: buck converter
author_rank: Regular Contributor
timestamp: May 29, 2017, 04:15:58 pm
content: EEV blog chat is down! someone spamming...

author: Ampera
author_rank: Super Contributor
timestamp: May 29, 2017, 04:50:04 pm
content: Is there another EEVBlog chat besides this one?

author: T3sl4co1l
author_rank: Super Contributor
timestamp: May 29, 2017, 05:46:59 pm
content: It was a brief attack, par for the course on IRC.In case anyone's missing, it's Afternet (irc.afternet.org) #eevblogTim

author: Syntax_Error
author_rank: Regular Contributor
timestamp: May 29, 2017, 05:51:55 pm
content: I forgot there was an EEVBlog chat!

author: Ampera
author_rank: Super Contributor
timestamp: May 29, 2017, 07:21:08 pm
content: Didn't even know there was an IRC.Now I can, not use it, as I don't really use IRC.

author: Syntax_Error
author_rank: Regular Contributor
timestamp: May 29, 2017, 07:24:24 pm
content: Well if you go to the eevblog main site and go to chat in the menu bar, you can log in via browser window.

author: japasetelagoas
author_rank: Regular Contributor
timestamp: May 30, 2017, 04:19:12 pm
content: I didn't even know that there was a chat, I'm going to check it out as soon as I leave work.
Switching from no-clean to water soluble paste - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: May 28, 2017, 06:58:17 am
content: Just wondering if anyone has experience/tips switching to water soluble solder paste for making and selling products from home.I've been using no-clean for years but would like to move to water soluble to save having to buy isopropyl alcohol.(also the availability of no-clean + leaded paste from digikey is just chipquik brand. Which i find sucks badly)As i understand it, you *must* clean water soluble flux off the PCB, but this can easily be done with a scrub under warm water using a brush?Thanks.

author: Ian.M
author_rank: Super Contributor
timestamp: May 28, 2017, 07:39:40 am
content: Warm water + a brush wont clean under larger SMD parts effectively. Now you have water washable residue that's more aggressive because its wet. Unless you go to the extremes of using a two stage hot water ultrasonic cleaning tank system (first stage cleaner, sluice it off then second stage deionised final rinse) or a pro-grade hot water-jet system with deionised water for the final rinse, I suspect you wont be happy with the long term reliability of the resulting boards.

author: Psi
author_rank: Super Contributor
timestamp: May 29, 2017, 07:21:12 am
content: Thanks, that's exactly what i needed to know.I will stick with no clean paste
I could use some advice on certifications - Page 1
Forum section: electronics / general

author: vgamesx2
author_rank: Regular Contributor
timestamp: May 28, 2017, 04:34:13 am
content: Basically, I want to get into electronics but to start off for now, I'm looking into getting some sort of entry-level repair technician job and I want to know what certs I should go for? Quite a few companies ask for a Comptia A+ and it's a good fit for those types of positions so I'll probably get it above anything else, but are there any others worth going after?The iFixit MasterTech and Microsoft Registered Refurbisher program both looked like good options, then there's the ETA CST and CETa which seems interesting but I can't find very many people talking about them so it's harder to get an idea if they're worth it or not.(Which by the way, I'm totally not ready for CETa, I took their practice test and was struggling with at least half of it, I need to brush up the formulas used.)

author: Syntax_Error
author_rank: Regular Contributor
timestamp: May 28, 2017, 04:40:49 am
content: Unless a specific employer asks for a specific certification, certs are completely worthless in the electronics repair industry. To be honest, electronics is conflated with IT enough as it is. Certs only make it worse.
Vivid Sydney - Page 1
Forum section: electronics / general

author: chris_leyson
author_rank: Super Contributor
timestamp: May 26, 2017, 01:39:25 pm
content: Wow, the Vivid Sydney festival starts today 26th May and runs until 17 June. Wish I was there to see it.

author: Halcyon
author_rank: Unknown
timestamp: May 27, 2017, 01:04:30 am
content: Definitely worth while if you're visiting Sydney, great atmosphere. I've worked there for a number of years so I don't really bother anymore but some of the technology is just fascinating.

author: EEVblog
author_rank: Unknown
timestamp: May 27, 2017, 10:10:38 am
content: Certainly worth itMany people come from interstate and overseas to see it.Some of my videos from previous years:
Utility for testing ECC memory on LGA2011 + C602 chipset? - Page 1
Forum section: electronics / general

author: Photon939
author_rank: Regular Contributor
timestamp: May 27, 2017, 12:11:54 am
content: So I currently have a bunch of junked ECC DDR3 memory and want to thoroughly test it so I can put it up on ebay.I have an HP Z420 workstation board I am using to test the memory.My go to utility memtest86 (also tried memtest86+) does not seem to detect the ECC functionality of the board I have and since it has a BIOS and not UEFI it can only run the older version of passmark memtest86.Are there any other utilities that offer this functionality or an easy linux setup that can do stress testing and report ECC errors?Thanks

author: Halcyon
author_rank: Unknown
timestamp: May 27, 2017, 08:47:59 am
content: You could try the utilities on theUltimate Boot CD. As far as I know the memory controller handles ECC errors transparently to the operating system, if it's a correctable single bit error, you won't know about it (which means either the memory is good and/or ECC is doing its job).

author: wraper
author_rank: Unknown
timestamp: May 27, 2017, 08:53:24 am
content: you can check in windows without any tools.https://superuser.com/questions/893560/how-do-i-tell-if-my-memory-is-ecc-or-non-eccwmic MEMORYCHIP get DataWidth,TotalWidthdidn't work for Ryzen I'm using. Butwmic memphysical get memoryerrorcorrectionshowed that ECC is working. And I managed to get two WHEA errors when overclocking RAM.
Amazon AWS features Mongoose OS for microcontrollers: ESP32, ESP8266, TI CC3200 - Page 1
Forum section: electronics / general

author: novlean
author_rank: Newbie
timestamp: May 26, 2017, 11:27:46 am
content: Amazon AWS Partner Network Blog features Mongoose OS. An Open Source Operating System specifically designed for the Internet of Things. Mongoose OS currently supports the ESP32, ESP8266, TI CC3200 and STM32 microcontroller platforms.https://aws.amazon.com/blogs/apn/partner-sa-roundup-may-2017/
Paternoster Lift/Elevator - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: May 26, 2017, 11:22:19 am
content: There is something I find fascinating about lifts and lift motor rooms. But for something a little different:

author: Someone
author_rank: Super Contributor
timestamp: May 26, 2017, 12:00:36 pm
content: Relative safety compared to the earlier industrial option:https://en.wikipedia.org/wiki/Man_engine

author: coppice
author_rank: Super Contributor
timestamp: May 26, 2017, 12:06:13 pm
content: A place where I worked in the 70s had a paternoster. It seemed fine in a workplace, where everyone is a reasonably healthy adult. They'd have some serious issues if used where children around. You need to be real careful not to let your toes stick out at the wrong moment.Going over the top or bottom never caused any issues. We used to do that occasionally when we missed our floor.

author: German_EE
author_rank: Super Contributor
timestamp: May 26, 2017, 12:09:58 pm
content: I used to service one at Natwest Bank King Street in Manchester city centre.

author: vinicius.jlantunes
author_rank: Regular Contributor
timestamp: May 26, 2017, 01:00:27 pm
content: Quote from: Someone on May 26, 2017, 12:00:36 pmThat look like something you would find in those puzzle type video games (like Limbo).
PCB art, no really, art - Page 1
Forum section: electronics / general

author: FrankBuss
author_rank: Unknown
timestamp: May 25, 2017, 10:35:39 am
content: I know it is an art, in the sense of craft, to do nicely layouted PCBs, but this is really art, combining the different layers in a very creative way:https://hackaday.io/page/3035-pcb-painting-large-pieces

author: Moe
author_rank: Newbie
timestamp: May 25, 2017, 09:20:54 pm
content: ^This is more my taste

author: mmagin
author_rank: Frequent Contributor
timestamp: May 25, 2017, 10:07:27 pm
content: And then there's this guy:https://www.google.com/search?q=ciat+lonbarde+pc+board&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiC86eFh4zUAhWl0FQKHUNRArIQ_AUIDCgD&biw=1826&bih=919

author: FrankBuss
author_rank: Unknown
timestamp: May 25, 2017, 10:58:19 pm
content: Quote from: mmagin on May 25, 2017, 10:07:27 pmThis is the website:http://ciat-lonbarde.net/cocoquantus/Crazy. And look at the schematic.pdfBut it looks like it is real and does indeed work. This is the best PCB art, as with the anime drawing: it looks good, but parts of the drawing are actual parts of the circuit to make it functional.

author: technix
author_rank: Super Contributor
timestamp: May 26, 2017, 12:43:24 am
content: Quote from: Moe on May 25, 2017, 09:20:54 pmIs that board from a book about creating a DIY CPU using HDL, written by some Japanese guy?

author: CJay
author_rank: Super Contributor
timestamp: May 26, 2017, 06:50:49 am
content: Just wow...They're all great but I *love* the anime board, I wonder if there are PCB files anywhere that could be sent off to a board house?

author: technix
author_rank: Super Contributor
timestamp: May 26, 2017, 07:20:39 am
content: Quote from: blueskull on May 26, 2017, 04:48:32 amI actually have that book in Chinese.Should I want to actually try the book I would try to retarget it to Intel EP4CE6 FPGA. I have a dev kit for it, and maybe if the CPU outgrew the peripherals available on the FPGA I would build a similar board using some 208-pin Cyclone IV parts.

author: tszaboo
author_rank: Super Contributor
timestamp: May 26, 2017, 08:46:27 am
content: Quote from: FrankBuss on May 25, 2017, 10:58:19 pmI have no idea what am I looking at. This does something with sound. But WTF is this?

author: amyk
author_rank: Super Contributor
timestamp: May 26, 2017, 11:54:03 am
content: That board with the girl on it is unmistakably Japanese. I'm not sure if this is the book that goes with it.

author: Berni
author_rank: Super Contributor
timestamp: May 26, 2017, 12:09:04 pm
content: I do wonder whats the reaction of the chinese PCB fab when you submit them gerbers for boards like the ones original post. Even giving them normal circuit board gerber files sometimes results in some of the most confusing of conversations as soon as you do something slightly out of the ordinary on your PCB.I think the responses would be something along the lines of "Why is your pcb girl picture" "Your gerbers are photo" "i have problem opening your files" etc

author: technix
author_rank: Super Contributor
timestamp: May 26, 2017, 12:27:35 pm
content: Quote from: amyk on May 26, 2017, 11:54:03 amNo I don't think so.
Specific Op Amp explanation of circuit - Page 1
Forum section: electronics / general

author: GamerAndds
author_rank: Regular Contributor
timestamp: May 26, 2017, 01:07:13 am
content: I don't know if this fits into the other section of the from, but I decided to post it here...Here is a typical active 2/3 way xover (see attachment)... I understand all the op amp except one (it is marked with red pen). I'm also confused with the lines/wires feeding back to the inverting and non inverting inputs. Perhaps I'm not thinking the right way about it, but it is confusing me.The circuit is 2 snippet from the behringer CX-4300 2/3 way active EQ.My question is how does this work and output a high frequency out put? Can some one help me to understand its workings?Thank you!

author: ajb
author_rank: Super Contributor
timestamp: May 26, 2017, 03:28:48 am
content: The op amp you've called out is in a summing configuration. The way that multiple signals feed into it via separate resistors is typical of that configuration. Conventionally all of the input signals would join up at either the inverting or the noninverting input, making the overall summing amplifier inverting or noninverting, but in this case a couple signals go to each, so it's a combined inverting and noninverting summing amp in a single stage. Since the four following stages are all inverting, they alternate polarity relative to the initial input. The stages with inverted outputs go to the noninverting input (so they get summed) and the stages with true outputs go to the inverting input (so they get subtracted). Since four of the five summed signals are fed back from stages following the summer, this configuration keeps the feedback all negative, which is generally what you want with op amps.

author: cvanc
author_rank: Frequent Contributor
timestamp: May 26, 2017, 03:35:48 pm
content: AJB's description is excellent. It's a pretty clever circuit if you ask me (which nobody did).
AWS device shadows with Mongoose OS for ESP8266 and ESP32 - Page 1
Forum section: electronics / general

author: novlean
author_rank: Newbie
timestamp: May 25, 2017, 04:13:53 pm
content: The video tutorial explains on using AWS IoT device shadows with Mongoose OS on ESP8266 and ESP32https://mongoose-os.com/video-tutorials.html#video11
Apollo flight computer video - Page 1
Forum section: electronics / general

author: eugenenine
author_rank: Frequent Contributor
timestamp: March 13, 2017, 12:59:44 am
content: 2k ram32k rom, I bet thats enough to run doom

author: VK3DRB
author_rank: Super Contributor
timestamp: March 13, 2017, 05:49:06 am
content: As Mr. Burns might say, "Well done, Simpson."This early Apollo computers are one example of necessity as the mother of invention. Now if we can only invent a way to clean up Fukushima and Chernobyl once and for all.

author: Ampera
author_rank: Super Contributor
timestamp: March 13, 2017, 06:01:52 am
content: Quote from: eugenenine on March 13, 2017, 12:59:44 amThe thing everybody forgets is that doom is very demanding to even 120mhz 486 CPUs.So in short, no way in hell is that enough for doom.

author: eugenenine
author_rank: Frequent Contributor
timestamp: March 13, 2017, 10:58:04 am
content: Quote from: TwoOfFive on March 13, 2017, 06:01:52 amIts been ported to way less, that's why I jokingly said it.

author: george graves
author_rank: Super Contributor
timestamp: March 13, 2017, 12:06:12 pm
content: That's one crappy video on the subject. I could have read wikipedia, and had more insight into it then that.

author: rdl
author_rank: Super Contributor
timestamp: March 13, 2017, 03:36:10 pm
content: The "Moon Machines" one episode about the navigation computer. Moon Machines is a six part mini series made by Science Channel, where the people who worked on the various parts of the Apollo program are featured. It's a very good series and there are low res versions on available YouTube.

author: SimonR
author_rank: Regular Contributor
timestamp: March 14, 2017, 05:07:45 am
content: I saw that video and its not too bad as a quick introduction.but its2K WORDS of RAM and 36K WORDS of ROM.A word in this case is 15 bits.so roughly, but not quite, translates to 4K RAM and 72K ROM

author: ludzinc
author_rank: Unknown
timestamp: May 25, 2017, 11:14:54 am
content: Quote from: george graves on March 13, 2017, 12:06:12 pm*than

author: John_ITIC
author_rank: Frequent Contributor
timestamp: May 26, 2017, 03:11:48 am
content: I seem to recall they navigated using ground computers via telemetry and only used the on-board AGC for checking the navigation (it was ok). The landings however used the AGC for things like ground radar (which was the cause of the now famous 1202 alarm because the radar was turned on too early and overloaded the AGC CPU).https://www.google.com/?gws_rd=ssl#q=1202+alarm+apollo+11&spf=1495768264945

author: Electro Detective
author_rank: Super Contributor
timestamp: May 26, 2017, 04:37:45 am
content: It should be easier to get there now with i7 powered Windows and Mac machines handling all the math(or Linux if you want a smoother ride and fair chance to return intact)If it's not worth going there because no gold or silver deposits to jack, how about golf tours for old billionaires with walking disabilities?They'll pay the big bucks for such a gravity free golf experience,and if the mission runs into problems, well, hey, the old greedy ****s had one foot in the grave anyway...
Nuisance shocks, Or don't park your school bus under 345kv power lines. - Page 1
Forum section: electronics / general

author: GreggD
author_rank: Regular Contributor
timestamp: May 22, 2017, 05:10:44 pm
content: Location of a vehicle within a power line right-of-way is the primary factor in nuisance shocks.See Page 4Ohio USA 60HZhttps://www.aepohio.com/global/utilities/lib/docs/info/facts/AEPOhio-Encroachment-onTransROW.pdf

author: Zero999
author_rank: Super Contributor
timestamp: May 23, 2017, 12:21:13 pm
content: It's hardly surprising. Metallic objects near a high voltage line form the one plate of a capacitor with the air as the dialectic and the power line conductor the other plate. At 765kV, a few pF of capacitive coupling is all that's required to allow enough current to flow to cause a small electrical shock.

author: james_s
author_rank: Super Contributor
timestamp: May 23, 2017, 07:00:23 pm
content: It would be fun to drive a ground rod and see how much power you could get out of the bus relative to ground. Rectify it and use it to power something.
AlphaGo is steamrolling the best Go player in China. - Page 1
Forum section: electronics / general

author: technix
author_rank: Super Contributor
timestamp: May 23, 2017, 08:18:27 am
content: Last year it was Lee Se-dol landed on the receiving end of a curb stomp.It is Ke Jie this year.I, for one, welcome our new computer overlords.DateMatch(Bold denotes player going first)Result(Bold denotes winner)May 23Ke Jie (9p)vs AlphaGo (h9p)AlphaGo, 1/2 pointsMay 25AlphaGo (h9p) vs Ke Jie (9p)TBDMay 26Gu Li (9p) + AlphaGo I (h9p) vs Lian Xiao (8p) + AlphaGo II (h9p)TBDMay 26AlphaGo (h9p) vs Chen Yaoye (9p) + Zhou Ruiyang (9p) + Mi Yuting (9p) + Shi Yue (9p) + Tang Weixing (9p)TBDMay 27Ke Jie (9p) vs AlphaGo (h9p)TBDThe two matches in the 26th is indeed a pair match between two human players each with an instance of AlphaGo helping, and one instance of AlphaGo playing a team of 5 Chinese professional players.

author: pitagoras
author_rank: Regular Contributor
timestamp: May 23, 2017, 01:58:36 pm
content: This first match was super interesting in than it was played out to the counting, and also moves of Ke Jie are already influenced by alpha go style.This will improve go for sure.Given the tight result today, I think Jie will win at least one of the games, and it will be great to see *how*.
i386DX-16 - Page 1
Forum section: electronics / general

author: Kilrah
author_rank: Unknown
timestamp: May 22, 2017, 08:45:46 pm
content: Seeing Dave's microscope videos reminded me I still had a few old CPUs I've been dragging around for 20+ years with the intent of looking inside one day, with a few unsuccessful attempts having happened along that as can be seen on the package - those lids are quite well attached.I recently got a CNC router which completely changes the game with regard to precision and hoping not to damage things too much when compared to a handheld dremel with grinding disc...So here's the oldest of the series from '86, it was in the first computer I "owned" - an IBM machine that was tossed away for hardware issues and that I snatched when I was about 15. Could play with it a bit but quickly became annoyed at the actual issue, it would only find its hard drive maybe once in 10 boot attempts or so. Was subsequently dumped as I didn't exactly know what to do to try and fix it back then and with none of the online documentation we have nowadays. It had however come with a pretty good CRT monitor (probably newer than the computer itself) that I kept and used for several years afterwards.Full high resolution:http://imgur.com/download/t5VQKViTaken with digital camera and macro lens. On a display at "optimal viewing distance" it results in about 60x magnification. The die is 10x9mm.

author: Zero999
author_rank: Super Contributor
timestamp: May 23, 2017, 09:48:11 am
content: Do you have any higher resolution pictures of the die?

author: Kilrah
author_rank: Unknown
timestamp: May 23, 2017, 10:03:41 am
content: Nope, the link with the full size that is in my post is the best I can do with my equipment (1:1 macro lens + 42MP full frame sensor camera).1:1 magnification lens means the image size on the sensor is the same as the object's size i.e. 10x9mm, the whole sensor is 36x24mm and 7952x5304px. So (9/36)*7952= 1988 px available for the short side of the die... and if you look at the die width on the full size picture it's ~2015px, unsurprisingly numbers check out and my 9mm ruler guesstimate isn't that far offWould need a lens with >1 magnification to do better, which is actually very rare in photography, you usually need to use converters or extension tubes to get more but I've never played with that.I have a few others to play with, hopefully the P133 and K6/2 will have bigger dies, but then the process being finer one will probably see less detail.
Does anyone remember where to find this soldering video - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: May 22, 2017, 10:52:45 pm
content: I'm trying to track down a dodgy soldering video to show someone.Does anyone remember the dodgy china soldering video that show someone doing PCB assembly and soldering ICs on by flooding them with way too much solder to make a bridged mess. Then hitting the PCB on the bench to remove all the excess solder?Anyone know the video i'm talking about?

author: Electro Detective
author_rank: Super Contributor
timestamp: May 22, 2017, 11:24:49 pm
content: No clue here sorrybut when it surfaces, please reserve me a ringside seat to watch it!>>>Edit: Found some related links here on EEVblog worth following up (and score a giggle or two)https://www.eevblog.com/forum/beginners/horrible-solder-job-buyer-wants-money-back-after-butchering-kit-with-his-skill/?allhttps://www.eevblog.com/forum/chat/nomination-for-worst-youtube-soldering-tutorials/?allhttps://www.eevblog.com/forum/chat/worst-soldering-you%27ve-ever-seen/?all

author: P90
author_rank: Frequent Contributor
timestamp: May 22, 2017, 11:35:22 pm
content: Quote from: Psi on May 22, 2017, 10:52:45 pmIsn't that the way it's done in every Chinese factory?

author: Psi
author_rank: Super Contributor
timestamp: May 23, 2017, 12:14:00 am
content: hehe maybe

author: sleemanj
author_rank: Super Contributor
timestamp: May 23, 2017, 12:29:39 am
content: I remember the video, but I don't know where to find it. I have a feeling it was shot in Malaysia or somewhere, not China.

author: Brumby
author_rank: Unknown
timestamp: May 23, 2017, 12:44:25 am
content: Can't say I recall seeing it ... but I know if I had, I would remember!!I would hope they didn't try this with SMD ... unless all the components were glued down.

author: Electro Detective
author_rank: Super Contributor
timestamp: May 23, 2017, 03:53:27 am
content: Quote from: Psi on May 22, 2017, 10:52:45 pmThat's a lot of unnecessary work, solder flying everywhere,and more work cleaning upWhy not cable tie the boards via the screw holes to a clothes line,and start wacking with a heavy duty wooden wok implementand let gravity do it's thing.Done!
Quickest way to start your #ESP8266 #ESP development - improved Mongoose OS - Page 1
Forum section: electronics / general

author: novlean
author_rank: Newbie
timestamp: May 22, 2017, 01:59:21 pm
content: Quickest way to kickstart your #ESP8266 or #ESP32 development - improved Mongoose OS:More details @https://mongoose-os.com/blog/mongoose-os-installation-procedure-changes/
I found One Hung Low's brother! - Page 1
Forum section: electronics / general

author: joseph nicholas
author_rank: Frequent Contributor
timestamp: May 19, 2017, 05:03:15 pm
content: The brother of One Hung Low, Dave's ubitquitous alter ego, has opened a resturant in Mexico. I took a photo of his establishment. Check it out.

author: Electro Detective
author_rank: Super Contributor
timestamp: May 19, 2017, 10:28:59 pm
content: Here we go..Thanks for posting, I'm always on the look out for anySuper PromoCionI can bag a bargain

author: Halcyon
author_rank: Unknown
timestamp: May 21, 2017, 07:09:50 am
content: It's actually pronounced "Fook", but still mildly amusing. :-)

author: Electro Detective
author_rank: Super Contributor
timestamp: May 21, 2017, 07:20:38 am
content: Our Brit bros pronounce it 'fook' don't they?

author: Halcyon
author_rank: Unknown
timestamp: May 21, 2017, 07:26:23 am
content: Quote from: Electro Detective on May 21, 2017, 07:20:38 amTouché

author: tautech
author_rank: Super Contributor
timestamp: May 21, 2017, 08:09:15 am
content: Heard a story about a small town barber named Fooken.He had a sandwich board ad on the sidewalk: You need a Fooken haircut.

author: yada
author_rank: Frequent Contributor
timestamp: May 21, 2017, 08:05:00 pm
content: Quote from: Electro Detective on May 19, 2017, 10:28:59 pmIs it in Spanish? He did say mexico? I can only imagine the diarrhea from that place.

author: Electro Detective
author_rank: Super Contributor
timestamp: May 21, 2017, 10:15:08 pm
content: Quote from: yada on May 21, 2017, 08:05:00 pmWhen traveling, be on a 40 day fast and BYO distilled rain water,saves money on suspect food and adult diaper/nappies,and looking for a rest room (dunny) every 5 minutes(that isn't busy with a deal going down and or someone going down)Apparently that system worked for Jesus and many prophets, and who can argue with that
Rant: High street component pricing - Page 1
Forum section: electronics / general

author: mubes
author_rank: Regular Contributor
timestamp: May 21, 2017, 11:49:09 am
content: This morning I had to pop into Maplin to pick something up that couldn't possibly wait. While I was there I saw a set of 200mm jumper leads that were marked up at £7.99. I just figured it was misprice and went on my way...but then I checked;http://www.maplin.co.uk/p/flexible-jumper-wire-200mm-flex-225mm-overall-length-fs70m~= 80p eachReally? How do you expect to get kids into Electronics as a hobby when you're charging them eight quid for ten bits of wire? I'm sure they're better quality than something like this;https://www.aliexpress.com/item/Raspberry-Pi-Breadboard-Jumper-Wires-40-x-1P-to-1P-200mm-Ribbon-Wire-Cable-Each-Set/32349345345.html~= 2.2p each...but, y'know, I don't need jumper leads to be made out of compressed Unicorn.Ouch!DAVE

author: Gyro
author_rank: Super Contributor
timestamp: May 21, 2017, 12:07:52 pm
content: Yes, you have to be pretty desperate to buy stuff from Maplin these days.It's still hard to beat RS for urgent stuff. Still free for next delivery and no minimum order (might be a credit card enforced minimum payment). The only problem is if it's something that is only available in a large min quantity.