hybridfree/eevblog-posts huggingface dataset:
How to buy an LCD Panel? aka 1.8"/1.77" TFT LCD Levels Teardown (and datasheet?) - Page 1
Forum section: electronics / general

author: natester
author_rank: Contributor
timestamp: September 04, 2018, 05:24:22 am
content: Hi guys. Total nub here, lmk if I should post elsewhere.With the grand plan of putting one of these straight onto a new PCB design, I got a couple LCD breakout boards off ebay, this one to be precise:https://www.ebay.com/itm/LCD-Display-module-1-8-inch-1-8-TFT-ST7735S-128x160-51-AVR-STM32-ARM-8-16-bit/112016021626and tore down one that arrived broken (see attached).And unlike the Adafruit version, I dont see any level shifters, just a 5v -> 3v3 power supply.Which makes me wonder, are these really 5v tolerant?I found a couple LCDs what look like identical pinouts on the standard Chinese sites:https://www.aliexpress.com/item/1-8-1-77-inch-Color-TFT-LCD-Display-Module-128x160-Display-ST7735-SPI-Serial-interface/32891270732.htmlhttps://www.aliexpress.com/item/1-8-1-77-inch-Color-TFT-LCD-Display-Module-128x160-Display-ST7735-SPI-Serial-interface/32887596525.htmlSo my question is, where do I get a datasheet? Or how do folks normally source LCDs?The markings areHR H17702FPC-A (flex pcb)H17702-BHX514D2018/04/15Cheers,N

author: amyk
author_rank: Super Contributor
timestamp: September 04, 2018, 08:04:41 am
content: Look at ST7735S datasheet. Maximum I/O voltage supply is 3.7V.

author: natester
author_rank: Contributor
timestamp: September 04, 2018, 03:12:21 pm
content: Awesome, I didn't even think to look at the controller datasheet. Thank you!

author: Ton
author_rank: Regular Contributor
timestamp: September 11, 2018, 08:42:53 pm
content: Hiyou could also have a look athttps://www.buydisplay.com/, have used them in a few projects, and can deliver from 1pcs and up.they are china based and they are usually reasonable quick with shipping.for their 1.8" look athttps://www.buydisplay.com/default/tft-display/1-77-1-8-inch-1they have data sheets for all their displays, and some SW examples are also quite frequent.Ton
858D hot air station mains switch measurements - Page 1
Forum section: electronics / general

author: Nisei
author_rank: Regular Contributor
timestamp: September 11, 2018, 07:49:03 am
content: I have ordered an 858D hot air station and want to replace the mains switch with a DPST version for safety reasons. Since I'm in Europe and there's no way to tell which wire is live or neutral when you plug it in, this is the easiest way to ensure the device is safe when switched off.Since I've not received it yet and want to order a suitable switch, can anyone post the measurements of the switch please?Looking at pictures I guess it's a 21mm x 15mm (18mm x 13mm mount hole) switch but I'd rather be sure.Thanks in advance!

author: Nisei
author_rank: Regular Contributor
timestamp: September 13, 2018, 08:51:17 pm
content: Aw I should've known. Rulers are not electronic so no-one here has one.Thanks anyway.

author: R005T3r
author_rank: Frequent Contributor
timestamp: September 14, 2018, 09:16:49 am
content: Quote from: Nisei on September 11, 2018, 07:49:03 amJust unplug the device and you are fine. No need to modify anyting.
Power board / power distribution with 20A plug - Page 1
Forum section: electronics / general

author: LukeW
author_rank: Frequent Contributor
timestamp: September 04, 2018, 11:29:14 am
content: I'm looking for a "power board" or power distribution box or whatever you want to call it, with a set of GPOs on one end (and presumably this unit could have its own current breaker and/or RCD) with power fed in from a cable with a 1ph 20A 3-pin plug with round pins, like a Clipsal 56P320.Any idea if such a beast exists? Where to buy it?

author: LapTop006
author_rank: Unknown
timestamp: September 05, 2018, 03:03:11 am
content: Look for units for the AV/lighting or IT folk. They most likely have IEC outputs (like this one) though.

author: stj
author_rank: Super Contributor
timestamp: September 07, 2018, 11:28:05 pm
content: what country are you in?there is a u.k. company that has pretty much everything called Olsonhttps://olsondirect.co.uk/
SMD solder paste and dispenser recommendations? - Page 1
Forum section: electronics / general

author: Fleetz
author_rank: Regular Contributor
timestamp: September 02, 2018, 12:18:28 pm
content: Just started designing some PCBs just as a hobby now I am retired. Not done much with SMD hand soldering and would appreciate recommendations of what solder paste I should use?Also any recommendations with solder paste dispensing?I have a 858D+ on order to kick some prototype builds and some basic reworking. Intend to look at either modifying a toaster over with a PID controller or a T962 IR oven.Cheers..

author: nanofrog
author_rank: Super Contributor
timestamp: September 02, 2018, 01:20:43 pm
content: You didn't indicate sizes, but you'd be amazed at the amount of SMD that's solderable with an iron. Seriously.For IC's, get packages with leads and drag solder. Passives are even easier. All sorts of videos on YT; look for those byJohn Gammell.If you're set on paste, Kester's EP256 (63/37) is very forgiving and can be had in small jars or syringes fromCML Supply. You can hand apply it from a syringe or even use a toothpick, though the best results are from using a stencil.

author: Fleetz
author_rank: Regular Contributor
timestamp: September 02, 2018, 01:34:56 pm
content: Thanks nanofrog,I will be using 1206 typically as my eyes and steady of hand ain’t what it use to be.Won’t be doing anything to fine, SOIC type packages probably the finest pitch. Drag soldering is interesting have looked at some of John Gammell’s videos, thanks.Got a sample pcb with SMD components coming to practice on.

author: nanofrog
author_rank: Super Contributor
timestamp: September 02, 2018, 01:50:33 pm
content: 1206 and SOIC would be very easy to do with an iron.PM sent regarding shaky hands.

author: Fleetz
author_rank: Regular Contributor
timestamp: September 02, 2018, 09:29:41 pm
content: Thanks again nanofrog.I note that most SMD footprints in KiCad’s library have a “hand solder” profile (eg 1206 hand solder) which is slightly larger. I reckon using these profiles might be safer for my first project in KiCad.

author: KL27x
author_rank: Super Contributor
timestamp: September 02, 2018, 10:54:01 pm
content: It is very important to use flux if using an iron with SMD parts. What's in the wire is not necessarily enough, nor will it necessarily get where you need it when using an iron, especially when drag soldering. So be sure to buy some plain flux, too, if you don't already have it.
Hakko FM-204/205 questions - Page 1
Forum section: electronics / general

author: okney1lz
author_rank: Contributor
timestamp: September 05, 2018, 08:17:49 am
content: Any real life performance differences between self contained and shop air versions?Which seems to have less maintenance issues? Is there a difference at all?Best tip sizes for 70's test gear. I have a truck load of 8640B's to go through.For this application, are the long tips worth the investment?Thanks for any input.
LIFEPOWR A3 Teardown - 99 Wh Powerbank with AC output and USB-C  - Page 1
Forum section: electronics / general

author: Erwin Ried
author_rank: Regular Contributor
timestamp: August 30, 2018, 04:03:23 pm
content: This is the teardown ofhttps://lifepowr.co/product/a3-usb-c-pd-ac-powerbank/it says that the AC outputI like the device, feels solid. The construction might be not perfect but I guess is ok. Designed in Belgium, made in PRC.It comes in an aluminium extruded profile, quite hard to slide outThere is a hole in the back:failed injection molding? (does not smell burned)It is a three board constructionOne for the indicator leds, middle for the USB in/out, last one for the inverter.I am not a fan of this glued heatsink:Or the button mechanism:Also the transformer is almost touching the AC outputI am not sure what do they mean with:Photos:https://imgur.com/a/3jfXLxoVideo charging my drone batteries:Teardown video:

author: thm_w
author_rank: Super Contributor
timestamp: August 30, 2018, 10:08:48 pm
content: It looks like they put kapton tape and then thermal glue onto the bottom of the heatsink? Yeah that is not a great idea, and its not clear why they need to insulate it. Wouldn't mind if they just put the heatsink and a ton of thermally conductive silicone around it.

author: Erwin Ried
author_rank: Regular Contributor
timestamp: August 31, 2018, 10:23:47 am
content: oh, good catch. I wonder why. I just did not like the use of glue

author: Mr. Scram
author_rank: Super Contributor
timestamp: August 31, 2018, 01:07:47 pm
content: What the dickens is that hole and why did quality control not catch that?

author: Erwin Ried
author_rank: Regular Contributor
timestamp: September 01, 2018, 12:44:55 pm
content: Well, since it is a small batch from indiegogo (1000-1200 units) I guess those artifacts are acceptable
Someone knows if there are compatible replacement tips for RS DS50? - Page 1
Forum section: electronics / general

author: kirys
author_rank: Newbie
timestamp: August 31, 2018, 06:49:13 am
content: HiI have an old solder station (DS50 by RS pro).Do you know if there are any compatible tips with this model available?Thank YouF.

author: Muttley Snickers
author_rank: Unknown
timestamp: August 31, 2018, 07:36:20 am
content: A Google search reveals that your iron might be a Zhongdi ZD-937 Soldering Station which has been re-branded for RS and also sold under various other names, there are quite a few existing discussions on these stations so try searching Google images for zhongdi zd 937 soldering station tips and see if they are the same, then search around on Ebay for the best deal.https://www.eevblog.com/forum/reviews/review-teardown-star-maplin-(oem)-digital-soldering-station/

author: kirys
author_rank: Newbie
timestamp: August 31, 2018, 07:53:42 am
content: I read that post too but the ds50 is really different (one button less)and also the tips look different.rs tip:https://it.rs-online.com/web/p/punte-per-stili-saldanti/0186725/zd spare tiphttps://www.ebay.com/itm/CA-1-N1-46-SPARE-TIP-FOR-ZD-931-937-929A-929B-929C-932-2-0MM/323048683061Maybe I'll try buying a set for testingByeF.
hot air station specific for repairing cellphones and tablets - Page 1
Forum section: electronics / general

author: R005T3r
author_rank: Frequent Contributor
timestamp: September 13, 2018, 03:57:25 pm
content: I was thinking to get a decent hot air station for tablet/smartphone (but not limited to) repair.Problem is, i need it to:1. solder and de/solder stuff2. removing glued components such as the screen3. for my electronics projects and stuff.4. Optional ESD-safe,since I'm going to handle quite sensitive parts, and frankly I cannot risk to break customer's phones because of elecrostatic charges.And I don't have any idea if getting a cheap station may be worth it or not. What product should I get?

author: sn4k3
author_rank: Frequent Contributor
timestamp: September 14, 2018, 05:14:21 am
content: Quick 861DW is the way to go

author: R005T3r
author_rank: Frequent Contributor
timestamp: September 14, 2018, 06:31:21 am
content: Interesting product and intereseting price.

author: Nisei
author_rank: Regular Contributor
timestamp: September 14, 2018, 08:43:58 am
content: Not affiliated in any way but check Louis Rossmann's store and YouTube channel. He's selling it for a good price and his repair videos are great!https://store.rossmanngroup.com/https://www.youtube.com/user/rossmanngroup/

author: R005T3r
author_rank: Frequent Contributor
timestamp: September 14, 2018, 09:14:40 am
content: I alredy follow Louis, He's very competent in repairing stuff.

author: sn4k3
author_rank: Frequent Contributor
timestamp: September 15, 2018, 01:15:51 pm
content: Quote from: R005T3r on September 14, 2018, 06:31:21 amYou can't get any better for the price, even higher price stations can perform worst than this quick

author: R005T3r
author_rank: Frequent Contributor
timestamp: September 15, 2018, 05:33:06 pm
content: Apparently this station is the best you can get in the market...Also the teardown is surprigingly good. The only complain I have is that the station does not have an IEC compalint socket, but who cares at this point...Also, there are specific nozzles for the Iphone X frame! Take a look:http://landelet.it/shop/index.php?id_product=1119&controller=productAnd it is not prohibitive.... Also, considering it mounts an ATmega chip, you can hack it!

author: screwbreaker
author_rank: Regular Contributor
timestamp: September 15, 2018, 05:45:39 pm
content: Quote from: R005T3r on September 15, 2018, 05:33:06 pmI got it from aliexpress for the half of the price:https://it.aliexpress.com/item/Per-iPhone-x-per-un-fine-Particolare-BGA-Saldatura-Mainboard-RAPIDO-861DW-Vento-Ugello-Pistola-Ad/32877038127.html
CASIO FX-991DEX for german market only? - Page 1
Forum section: electronics / general

author: Peter63
author_rank: Contributor
timestamp: June 17, 2018, 09:18:15 am
content: HelloI have a CASIO FX-991DEX and this has only german text in menu's. Not possible to change to EnglishIt has 696 function, the model FX-991EX has 552 function

author: tooki
author_rank: Super Contributor
timestamp: July 16, 2018, 11:12:01 pm
content: That’s nice. Do you have an actual question?

author: Kalvin
author_rank: Super Contributor
timestamp: July 16, 2018, 11:31:10 pm
content: Ingen problem:http://www.etranslator.ro/german-swedish-online-dictionary.php

author: Kalvin
author_rank: Super Contributor
timestamp: July 16, 2018, 11:53:48 pm
content: After some quick googling, it looks like you cannot change the language. However, some users stated that you should be able to use the manual for the English version as the menus should be identical although in German. With a little translation you should be able to decipher the remaining functions available only in the German version of the calculator.

author: amyk
author_rank: Super Contributor
timestamp: July 17, 2018, 01:45:18 am
content: From the title, did anyone else think Casio had rebranded one of Hakko's soldering stations?

author: ThunderSqueak
author_rank: Unknown
timestamp: July 20, 2018, 12:31:14 pm
content: I use a Japanese model of this calculator for the same reason, More functions. Just be aware that the different models all have some quirks between them... example is how they prioritize functions.The Japanese version (casio fx-jp900) DOES let you change it to englishTrivia: What happens when you input the equation shown on the FX-115 es plus? or the FX-115 ES ? or the FX-JP900?The FX-115ES and FX-115ES plus both get different results.The fx-jp900 auto corrects the input after you hit enter and adds the brackets (the USA version of the fx-991ex classwiz also autocorrects) so be sure you enter your formulas with appropriate brackets :>Side note: I use a ti-89 (original model) more as you can make it do Laplace transforms and inverse Laplace transforms(the TI-89 titanium cannot do them)..edit: added an image of the ti89 doing a Laplace and inverse Laplace transform ... and I think I heard someone screaming "NEEERRRRRDDDDD" from across the house O.o;;

author: malagas_on_fire
author_rank: Frequent Contributor
timestamp: August 27, 2018, 03:58:21 pm
content: HiHere the calculator is designated FX-991 SPX II and has castellano, spannish and portuguese language, in essential it is designed for the Iberia Market. Maybe it is a requirement from schools / universities.I would like to switch the language to english but its not bad to have well translated model.( Edit)Currently i bought the 570 SPX ii while in promotion to replace the ti89 that was from a friend and repaired two years ago or more from corrusion but now it is eating batteries like a ungry lion.
name of heat transfer? strip used on back of plasma TV? - Page 1
Forum section: electronics / general

author: coppercone2
author_rank: Super Contributor
timestamp: August 25, 2018, 02:09:49 am
content: What are the silicone like strips found on the back of a plasma TV between the vacuum tube and the aluminum shield called?Are they meant for mechanical coupling and vibration dampening or like I think for heat transfer? I collected a bunch of them and they actually feel really cold, I think they would make a good bench top material between your keyboard and table to keep your hands cool when they rest on the table. Their like 1mm thick, kinda tacky but they don't stick to eachother in a permanent way. Kind of like silicone but not really. Much much thicker then a silpad and their more rubbery/wet feeling, silpad feels kinda dry. They are also very heavy. Dull mat grey colored.I find those typical keyboard gel things are sweat magnets, so I just deal with the potential carpel tunnel. But laying these strips infront of my keyboard is very pleasant, especially in an air conditioned room. I do wish they were a bit less sticky though, I kinda wanna put talc on them. But the sticky is not a nasty sweat sticky.Can you buy a tape of this stuff? Is it skin safe?
A cheap GPIO board to use with generic software - Page 1
Forum section: electronics / general

author: sata
author_rank: Newbie
timestamp: August 12, 2018, 01:50:51 am
content: Hey guys,i'm asking for an advice from the connoisseurs here on what you recommend on a generic, easy to use IO board to interface Computer software with a generic board i could be programing.Right now im programing some simple PIC program, and i'd love to test some inputs and outputs on it, be it analog or digital.There's the normal parallel port that i love, but it lacks the analogs inputs/outputs i would like to have.Basically i would like an parallel port with analogs too. Am i asking too much? Can you recommend anything plug and play?

author: Rerouter
author_rank: Super Contributor
timestamp: August 12, 2018, 01:54:52 am
content: Your looking for a development board, likely something like the arduino platform, most appear as a virtual com port on connection, there will likely be sample code out there to take a serial input and toggle an IO or reply with an ADC value.

author: ataradov
author_rank: Super Contributor
timestamp: August 12, 2018, 04:26:39 am
content: For this boardhttps://www.digikey.com/product-detail/en/microchip-technology/ATSAMD21-XPRO/ATSAMD21-XPRO-ND/4842693I have this piece of firmware and softwarehttps://github.com/ataradov/dgwI use this all the time for this kind of application. But it is not a feature-complete thing, but more like a template you can use. The PC part is also just a C program you can change to do whatever you need.Embedded part is easy to expand with custom commands.It is probably not exactly what you want, but it is an option.

author: shteii01
author_rank: Frequent Contributor
timestamp: August 12, 2018, 08:44:03 pm
content: I actually do not understand what you are asking.However, since you are working with PICs, do you have PICKit 2 or 3 for them?

author: Brutte
author_rank: Frequent Contributor
timestamp: August 12, 2018, 11:08:26 pm
content: FT232R is digital only USB-to-IO, it does have a parallel 8-bit port and also several other interfaces like UART.No analog features though.Those chips are so popular that I think you won't have difficulties in finding/using the generic software.I think it is a good and cheap starting point.

author: cdev
author_rank: Super Contributor
timestamp: August 24, 2018, 02:31:32 pm
content: What you would use depends on how fast you need it to go, it would seem to me.
Curt Spectrum Brake Control - Page 1
Forum section: electronics / general

author: morrone
author_rank: Unknown
timestamp: August 24, 2018, 02:40:35 am
content: Attached are photos of the inside of the controller for a Curt Spectrum Brake Control. It looks like a pretty simple design with a push button rotary encoder, and then 10 daisy chained addressable RGB LEDs.
Cheap alternatives to Toslink TOTX / TORX173 modules? - Page 1
Forum section: electronics / general

author: tronde
author_rank: Frequent Contributor
timestamp: January 28, 2017, 03:33:49 am
content: I am looking for some cheap alternatives to the old TOTX / TORX173 modules. The chinese sell a lot of cheap optical splitters and converters so I guess the parts they use are available somewhere. The Toshiba 1350 / 1952 series cost more than I like.I can of course butcher some of the chinese units, but I prefer parts if available. Any suggestions?

author: Yansi
author_rank: Super Contributor
timestamp: August 19, 2018, 11:16:13 pm
content: Hi! Just have solved the same issue and stumbled upon this thread.For those who may come across too and are interested in cheap TOSLINKs, I'd suggest taking a look at the sortiment from CLIFF. They have a metric shit ton of them, very cheap (like almost buck a piece).For example CLIFF FCR6842031R (Receiver) and CLIFF FCR6842031T (Transmitter).Other types listed here:https://www.tme.eu/cz/Document/5b20f7a8b70dbe2789d7248c1da56525/opticaljacks.pdf

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 20, 2018, 01:40:25 am
content: The transmit side can be done with a really cheap red laser module in a 3D printed adapter. Long ago, I did something like that by hot gluing the laser out of a really cheap laser pointer to the open back of a 3.5mm jack on a sound card. (The laser must be the really cheap kind that's just a diode and resistor - fancy modules with regulation will not work.)The receive side is considerably more complex and I can't think of anything that would work well while costing less than just buying modules. Many cheaper receivers don't have enough bandwidth to reliably receive 192kHz audio. As an alternative, I have found that transformers salvaged from Ethernet cards work well for isolating S/PDIF over coax or twisted pair.
ESD mat for new bench - Page 1
Forum section: electronics / general

author: maginnovision
author_rank: Super Contributor
timestamp: August 15, 2018, 05:59:21 am
content: I just got a new stainless steel workbench and need to get an ESD mat for it. I'd like a puncture resistant and more or less heat proof mat but I'd also like to not buy 25'-50' of the stuff when I only need 6'. Any suggestions and or recommended places to purchase?

author: MarkF
author_rank: Super Contributor
timestamp: August 16, 2018, 09:29:06 am
content: I bought theSierra FT Series Rubber Matfrom All-Spec. I'm very happy with it (24"x48" in dark blue).

author: maginnovision
author_rank: Super Contributor
timestamp: August 17, 2018, 05:56:42 pm
content: Thanks. I ordered a bertech high temp usa mat which comes today. If it doesn't quite work for me I'll try one of those out. Has your mat been good with abrasion and puncture resistance? Any issues with the iron?

author: MarkF
author_rank: Super Contributor
timestamp: August 17, 2018, 07:06:30 pm
content: I haven't put it to the test. But, it has been holding well and I like that it is thin.However, I've since moved the soldering station to another desk because I was getting solder flakes on the mat and didn't want them getting in my PCBs.It looks like the same brand mat that Dave put on his benches and did a review on. Here's one of them:
What is the relationship between OK Industries and Metcal? - Page 1
Forum section: electronics / general

author: cvanc
author_rank: Frequent Contributor
timestamp: June 14, 2018, 01:45:29 pm
content: These 2 companies seem to somehow be associated, am I right about that? Did OK Industries *become* Metcal, or did Metcal buy OK, or what?Will Metcal tips fit my ancient but still great OK Industries SA-251 soldering iron?

author: N2IXK
author_rank: Frequent Contributor
timestamp: June 14, 2018, 01:54:49 pm
content: OK industries owns Metcal, and several other brands:http://www.okinternational.com/

author: w9gb
author_rank: Contributor
timestamp: August 11, 2018, 01:32:14 pm
content: Remember the DATSAN brand name in automobiles?https://en.m.wikipedia.org/wiki/DatsunFrom 1958 to 1986, only vehicles exported by Nissan were identified as Datsun. By 1986 Nissan had phased out the Datsun name, but re-launched it in June 2013 as the brand for low-cost vehicles manufactured for emerging markets.In North America, NISSAN was the “new name” (owner) after 1986.—Matsushita Electric Industrial Co., Ltd (Japan) did same “name change” recentlyto its most famous Brand Name, Panasonic.https://en.m.wikipedia.org/wiki/Panasonic—OKI International tried this name change for Metcal ...the PS-800 was one of first products with new OKI name. Marketing failed.Today, METCAL has been recovering its brand identity from this “New Coke” fiasco.

author: GreyWoolfe
author_rank: Unknown
timestamp: August 11, 2018, 02:48:36 pm
content: Quote from: w9gb on August 11, 2018, 01:32:14 pmMy first car was a 1970 Datsun 510 4 door in a slightly weird yellow color. Automatic transmission but manual choke and I would have to open the hood every morning in the winter to unstick the butterfly in the carb. I kind of miss that old beater

author: Nauris
author_rank: Regular Contributor
timestamp: August 16, 2018, 04:52:01 pm
content: Quote from: w9gb on August 11, 2018, 01:32:14 pmAlso this OKI making Metcals has nothing to do with OKI Semiconductors (now Lapis) or OKI Electric Industry Co.
Question about night vision technology - Page 1
Forum section: electronics / general

author: Ben321
author_rank: Frequent Contributor
timestamp: July 23, 2018, 04:57:21 am
content: My question is about light intensifier tube based NV monoculars. I know that Gen0 is just an image converter tube, converting near-IR light into visible light. And I know that Gen2 (and higher) produces significant light amplification, of hundreds or even thousands of times. However, Gen1 is a bit of a mystery to me. I've often read that it has some light intensification properties, but I also know that Gen1 uses an external IR illuminator, and this suggests that it may have no light amplification (just like Gen0).Can anybody here tell me if Gen1 night vision monoculars actually amplify light? And if so, by how much? And if not, then how does Gen1 differ from Gen0?

author: tautech
author_rank: Super Contributor
timestamp: July 23, 2018, 05:11:39 am
content: You might get faster answers if you move this to the Thermal Imagery sub forum.https://www.eevblog.com/forum/thermal-imaging/Use the Move button at the bottom left of the page that only you, the OP can see.

author: Ben321
author_rank: Frequent Contributor
timestamp: July 23, 2018, 06:20:02 am
content: Quote from: tautech on July 23, 2018, 05:11:39 amThermal imaging is not the same as light intensifier night vision. Light intensifier night vision works with visible and near-IR wavelengths. Thermal imager works with longwave-IR wavelengths. It would be out of place in that section.

author: PointyOintment
author_rank: Frequent Contributor
timestamp: August 25, 2018, 07:48:35 am
content: https://en.wikipedia.org/wiki/Night_vision_device#Generation_1_(GEN_I)QuoteCitation  links tohttps://www.globalsecurity.org/military/systems/ground/nvg.htm,which saysQuoteThat page doesn't mention Generation 0, though Wikipedia does.
"walabot"-like devices and millimeter wave non-invasive through-wall imaging? - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: August 11, 2018, 07:23:41 pm
content: There is a new kind of wall imaging tool out now that appears to use millimeter waves - which give a reading of density(?) capacitance(?) Inductance(?) inside of walls.I have a number of possible use cases which would be helped tremendously if I was able to really 'see through the walls'. One example is bathroom renovation. It would be extremely helpful to be able to know what was behind tile etc, before tearing into it. More info than a stud finder gives me.I'm wondering if these sensors can be bought on their own and if they can interface with a laptop computer to get better images.

author: Bud
author_rank: Super Contributor
timestamp: August 11, 2018, 08:03:13 pm
content: Google for walabot developer.
Quality polyimide tape - where to get? - Page 1
Forum section: electronics / general

author: LeonR
author_rank: Regular Contributor
timestamp: July 17, 2018, 08:59:44 pm
content: I've bought a "Koptan" (lol) tape roll that don't like taking heat unless it's completely glued to the surface, and even then, it left a yellow stain on the part it was glued on. I've seen videos on youtube of tapes taking up to 400ºC with no sweat, I think I just got a dud.Is there any Aliexpress/Ebay/Gearbest seller with a quality product? I've took sme hours digging into reviews but most people don't seem to have tested the tape for SMD work.

author: Dubbie
author_rank: Unknown
timestamp: July 17, 2018, 09:02:34 pm
content: It's just tape. Why not buy the proper stuff?Even in China they use the real stuff.

author: sokoloff
author_rank: Super Contributor
timestamp: July 17, 2018, 09:08:36 pm
content: I bought several rolls from different suppliers (all Chinese) and they all seemed to work well for me for SMD and 3D printing work.Unfortunately, I can't find it in my Aliexpress purchase history (nor in Ebay or Amazon), so I can't be 100% sure from whom I bought it, but I know it was 6" roll from one supplier and the other  sizes from several other suppliers and they've all been fine.

author: LeonR
author_rank: Regular Contributor
timestamp: July 17, 2018, 10:03:08 pm
content: Quote from: Dubbie on July 17, 2018, 09:02:34 pmI bought is as so! Unfortunately got a bad quality sample. I guess it comes while going with low prices, but it wasn't my first problem with chinese goods - good thing aliexpress have a good refund policy.Quote from: sokoloff on July 17, 2018, 09:08:36 pmNice. I just grabbed this, from another seller. Hoping it works as intended.https://www.aliexpress.com/store/product/50mm-X-33m-100ft-Kapton-Tape-High-Temperature-Heat-Resistant-Polyimide-free-shipping/210862_32777790248.html?spm=2114.12010615.8148356.5.619541e62zIIMO

author: james_s
author_rank: Super Contributor
timestamp: August 09, 2018, 08:24:29 pm
content: I think I bought mine from tapecase.com. I bought a couple rolls and I use a fairly low volume of the stuff so it's been so long I hardly remember where I got it but I think it was tapecase. I got polyester tape there for winding transformers too.

author: Halcyon
author_rank: Unknown
timestamp: August 10, 2018, 03:59:00 am
content: https://www.rockby.com.au/catresultsSql_12.cfm?Stock_no=41689

author: mzzj
author_rank: Super Contributor
timestamp: August 10, 2018, 04:57:35 am
content: Quote from: Dubbie on July 17, 2018, 09:02:34 pmEver seen the prices of the "real stuff"?https://www.digikey.com/products/en?mpart=5413%20AMBER%2C%201%201%2F4%20IN%20X%2036&v=19

author: mzzj
author_rank: Super Contributor
timestamp: August 10, 2018, 06:13:41 pm
content: Guesswork here but you probably want silicone based adhesive, not acrylic.Most of the ebay sellers don't specify what they are selling, maybe better order from Alibaba from those sellers that specify the glue type even if its not any 100% guarantee..(3M rates their acrylic adhesive polyimide tape to 180C and silicone adhesive to 260c)
24V DALI radio module - Page 1
Forum section: electronics / general

author: ocset
author_rank: Super Contributor
timestamp: March 22, 2018, 10:32:58 am
content: Hello,Does anybody have a datasheet for any 24V fed DALI radio module, which receives DALIcommands via the mobile telephone network and then DALI dims a DALI dimmingbus, so that a lamp connected to that DALI dimming bus can be dimmed.I think theyre about 10.5W max power. And they are European Mains input.

author: Nikhil
author_rank: Newbie
timestamp: July 04, 2018, 05:05:55 am
content: What do you exactly mean by a DALI radio module?

author: TJ232
author_rank: Frequent Contributor
timestamp: July 04, 2018, 05:13:28 pm
content: Quote from: Nikhil on July 04, 2018, 05:05:55 amTreez style questions where you need to find not only the answer but also the related correct question.Probably he wants a DALI Gateway, that can be a DALI protocol to GSM, 3G, GPRS, RF ISM band or WIFI, or bluetooth or all of them Gateway/translator.

author: Nikhil
author_rank: Newbie
timestamp: August 09, 2018, 09:29:16 am
content: I guess this can work for you if you'd like.https://www.helvar.nl/files/_downloads/191xx-192xx-193xx-290x-datasheeten.pdfIt uses the DALI protocol, controlled via Bluetooth.
UVM30A frequency response curve - Page 1
Forum section: electronics / general

author: jancelot
author_rank: Regular Contributor
timestamp: August 04, 2018, 11:07:32 pm
content: Bought theUVM30A UV sensor from banggodfor Arduino, which claims to have a response wavelenght of 200~370nm. Since it's a cheap product, I'm not sure how goot the frequency response is, in case frequency response is not flat. The pdf provided by Wildtronics has a graph correlating UV index with output voltage in mV, but no mention to how flat is the frequency response in the specified range.https://www.wiltronics.com.au/wp-content/uploads/datasheets/ARD2-2062.pdfDo you have any further idea? There are much more expensive UV meters like theOmega HHUV254SD, which is an independent handhelt meter, and surely there are some big differences with the Arduino one.

author: jancelot
author_rank: Regular Contributor
timestamp: August 07, 2018, 07:54:07 pm
content: Wiltronics doesn't have any further information. Apparently they are just resellers of a chinese-made product. Here's further information I could find:UVM-30A UVA/UVB sensorUVM-30 Datasheet - UV sensor suitable for Weather Stations
Weller ds801 pump vacuum bar - Page 1
Forum section: electronics / general

author: Applemac
author_rank: Regular Contributor
timestamp: August 10, 2018, 10:34:17 am
content: Hi, was wondering if anyone knows what the normal bar reading should be on the weller ds801 when desoldering. Mine reads -0.2 not sure if this is producing enough succión?Thks in advance for any help.
Solder Seal Wire Connectors - Page 1
Forum section: electronics / general

author: MacMeter
author_rank: Frequent Contributor
timestamp: August 03, 2018, 01:55:12 am
content: A friend sent me the link below. I searched the forum, no results.Does anyone have any experience with the product “Solder Seal Wire Connectors”?https://themcdepot.com/products/solder-seal-wire-connectors

author: todd_fuller
author_rank: Contributor
timestamp: August 03, 2018, 04:39:04 pm
content: I don't have experience with that specific brand, but those types of splices are the bees knees. I've used the Raychem SolderSleeve products with good success. Only problem is they're usually pretty pricey if you need to use a lot of them. TE.com offers samples (+shrink tubing, etc).

author: Bratster
author_rank: Frequent Contributor
timestamp: August 03, 2018, 04:50:30 pm
content: One thing to keep in mind is they're only good if your wire is nice clean and easily solderable.If the wire your using it on is older or lower quality it may not solder well in which case they don't work at all.Like if you're trying to splice some wires back together on an older vehicle.Sent from my Fi Moto x4 using Tapatalk

author: MacMeter
author_rank: Frequent Contributor
timestamp: August 03, 2018, 10:07:49 pm
content: Thanks, never seen them before, looks interesting.
Conformal Coating Spray - Page 1
Forum section: electronics / general

author: EEVaditya
author_rank: Regular Contributor
timestamp: July 11, 2018, 10:12:23 am
content: Hello,Looking for good quality Hand Spray type Conformal Coating for my PCB.Any recommendations & suggestions for Automotive as well as general purpose application.

author: thm_w
author_rank: Super Contributor
timestamp: July 11, 2018, 08:55:24 pm
content: Depends what country you are in.Canada would be this:https://www.rpelectronics.com/422a-340-conformal-coating-mg-chemicals.htmlNeeds extremely good ventilation wherever you are using it.

author: Tony_G
author_rank: Super Contributor
timestamp: July 11, 2018, 10:22:52 pm
content: I've used the acrylic version of the MG conformal coating:https://www.mgchemicals.com/products/conformal-coatings/acrylic-conformal-coating-419cWent on well without running - I used it in this video:https://youtu.be/9DN74VX37O4?t=11m38sThe silicon one from thm_w's post is from the same manufacturer - MG Chemicals also has epoxy and polyurethane onesTonyG

author: JtroTechAB
author_rank: Contributor
timestamp: July 12, 2018, 06:28:05 am
content: @Tony_G & thm_ware there any other alternatives?which are good quality and with moderate rates.in the range of 500-1500 INR (8 USD-20 USD)these mg chemicals products are out of budget.

author: Tony_G
author_rank: Super Contributor
timestamp: July 12, 2018, 08:23:50 pm
content: Unfortunately I've only every used the MG Chemicals one (it worked very well for me so I never went looking elsewhere) - thm_w may have more experience.That said, you can probably use any spray on polyurethane or silicone material - You want to get the MSDS for whatever you choose and ensure that there aren't any ingredients that would cause problems (you want it to be basically the coating, thinner and propellant).Also I see that the paint brush versions of it are cheaper (probably less area coverage per bottle though).Sorry I couldn't help more.TonyG

author: JtroTechAB
author_rank: Contributor
timestamp: July 14, 2018, 08:41:18 am
content: any updates , suggestions regarding Conformal coating hand spray (Aerosol)for automotive & general purpose?

author: JtroTechAB
author_rank: Contributor
timestamp: July 17, 2018, 04:52:51 am
content: Any other good quality conformal coating aerosol brands in the following price range"in the range of 500-1500 INR (8 USD-20 USD)"

author: D3f1ant
author_rank: Frequent Contributor
timestamp: July 20, 2018, 07:38:52 pm
content: Electrolube do range of them, they have worked well for me in the past. They contain UV trace so easy to inspect the quality of coverage.
Weller WS-81 analog soldering station calibration - Page 1
Forum section: electronics / general

author: ciccio
author_rank: Frequent Contributor
timestamp: July 23, 2018, 08:11:37 am
content: I have two Weller WS-81 analog soldering stations.https://www.distrelec.it/it/stazione-di-brasatura-ws-81-80-weller-ws-81/p/18224131?queryFromSuggest=trueBoth are 15 to 20 °C out of calibration, when set at 370°C.The supplied manual does not include a complete schematic and it does not give any detailed calibration procedure.I contacted my local distributor, but it seems that the only available option is to order a new PCB.Does anybody have a detailed schematic or a calibration proedure available?Best regards

author: Zucca
author_rank: Unknown
timestamp: July 23, 2018, 10:06:24 am
content: Stazione di brasaturaAnyway.Well I think you need a little bit of reverse engineering. It's a pot, so by adding a R in series you can shi(f)t the T range.

author: screwbreaker
author_rank: Regular Contributor
timestamp: July 23, 2018, 12:33:49 pm
content: Quote from: ciccio on July 23, 2018, 08:11:37 amWhat do you use to check the tip temperature?I've bought a cheap Chinese thermometer, ant it also show a difference from 15 to 20° respect the selected temperature. But I was not sure if to trust the 10 € thermometer or the 300 € Weller station.By the way the calibration is very simple. There is a little allen screw under the knob. Just set the temperature until the thermometer display 300°, then unscrew the allen and rotate the knob to align the mark with the 300° and than screw it back.

author: ciccio
author_rank: Frequent Contributor
timestamp: July 24, 2018, 08:23:09 am
content: Thanks Zucca:I understand the funny response. The Italian translation in many international supplier's sites are sometime funny, and Distrelec's is not better or whorse than the average, BUT, in this case, they are maybe CORRECT.We usually say SALDATURA, but the correct term should be BRASATURA :- from Wikipedia :La brasatura consiste nel collegare pezzi metallici con l'ausilio di un metallo d'apporto senza la fusione dei pezzi da assemblare. Il metallo d'apporto penetra per capillarità fra i pezzi da assemblare.- See also thishttp://www.uniroma2.it/didattica/CTM/deposito/Saldature.pdfI will not do any reverse engineering : I want to sell those two stations.. any chinese T12 clone works better (after some modifications) and is cheaper to mantain.Thanks, Screwbreaker:I've checked with an Hakko clone thermometer, a thermocouple, an IR thermometer.. I have about 10 stations, various origin, but only these two Weller are off calibration, for a significant amount..I will try your method.
Teardown: $10 wireless HDMI kit - Page 1
Forum section: electronics / general

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 07, 2016, 07:17:27 am
content: There was a discount on the LG AN-WL100 wireless HDMI kit, so I got one. After tearing it down and playing with it, I decided to get a few more as they're clearly very useful.The chipset used is the AMN2120, which is rather interesting in that it's available in medical grade. Clearly the protocol must be well designed and very robust! It supports up to 1080p60 in the 5GHz band and the quoted latency is less than 1ms.The schematics for the motherboard in the base unit can be found online and it runs Linux. Rooting it is reasonably easy with a serial cable and LGMOD_S7, although I haven't yet found anything interesting to do with root. There's a lot of room in the base unit which opens up a lot of possibilities for some DIY projects.

author: bingo600
author_rank: Super Contributor
timestamp: April 11, 2016, 07:40:55 pm
content: Some info herehttp://csmatt.com/notes/?p=62/Bingo

author: pcbroute
author_rank: Contributor
timestamp: March 24, 2018, 07:51:23 pm
content: How do you think, it is possible run one transmitter with two receivers in the same time? How pairing is work?

author: Beamin
author_rank: Super Contributor
timestamp: July 23, 2018, 02:37:47 am
content: How big in this? I would want the transmitter end to be small so you could have it be semi portable. The TV end wouldn't matter. Does it have a SMA or connector for an antenna?

author: NiHaoMike
author_rank: Super Contributor
timestamp: July 23, 2018, 03:13:13 pm
content: The whole unit is about the size of a DVD player (pretty much just to fit all the connectors), but the transmitter board is quite small.
Pace Sodrtek st 45 factory reset - Page 1
Forum section: electronics / general

author: joeqsmith
author_rank: Super Contributor
timestamp: December 03, 2015, 12:57:37 am
content: My soldering iron whacked out and now wants some password to change the temperature. I have gone through the manual and looked on their site. No luck. Anyone know of a way to clear the password or reset this thing back to the factory defaults?

author: joeqsmith
author_rank: Super Contributor
timestamp: December 03, 2015, 04:24:38 am
content: What a stupid setup. Called and attempted email. No luck as its after hours. Used my old Weller to get what I needed done. Then took my PACE apart.There is a jumper right next to a Microchip EEPROM 93LC46. I jumped it, then turned it on. No luck. So I grounded the serial data output pin 4 to pin 5. Then turned it on and the display showed P--. Next remove the jumper. I just used tweezers to jump it. Next press the down arrow to clear the password. Then change your settings per the manual. Once you save and exit the setup, the password should be cleared and your good to go.So if you ever buy a used one or some how yours gets scrambled at least somewhere on the internet you can now see how to recover it.I bought this brands new in 2004 from Jenson Tools. I don't even think they are in business anymore. It sees a lot of use and the tips are still in great shape. It's been a solid performer until today. I have no idea why it scrambled it's memory.

author: KJDS
author_rank: Super Contributor
timestamp: February 24, 2016, 08:48:48 pm
content: Quote from: joeqsmith on December 03, 2015, 04:24:38 amThat's just worked for me, though I've no idea whether it had a password set before I owned it or if it just went wrong in the previous owners possession.

author: joeqsmith
author_rank: Super Contributor
timestamp: July 20, 2018, 11:24:18 pm
content: Adding this post in case someone else happens to stumble upon this problem.Quote from: PACE-Worldwide on July 20, 2018, 10:15:19 pm
Tweezer nose  or very fine circlip pliers? - Page 1
Forum section: electronics / general

author: ralphrmartin
author_rank: Frequent Contributor
timestamp: July 17, 2018, 09:05:11 pm
content: I'm doing a job which involves some very small circlips; the lugs on them have holes which are under 1mm in diameter. Can anyone recommend a high quality pair of pliers (very fine circlip pliers, tweezer nose pliers, etc.) which would be small enough for such work? While there seem to be quite a lot of precision toold out there, it's hard to find any with tips under 1mm.

author: tautech
author_rank: Super Contributor
timestamp: July 17, 2018, 09:33:04 pm
content: KD have a kit with replaceable tips in a couple of selections, sizes and angles.KD is now owned by Gearwrench so you can find their selection here:http://www.gearwrench.com/pliers/snap-ringWhile I didn't find their replaceable tip sets robust for big circlips they were indeed very handy for the tiny ones.Back when I was on the tools.................

author: Gregg
author_rank: Super Contributor
timestamp: July 18, 2018, 01:24:54 am
content: I have several 20 plus year old Belzer snap ring pliers that I wouldn’t trade for any of the newer Chinese ones; Bahco may have bought out Belzer. If I was looking for quality, I would look at Stahlwille, Knipex and Wera.

author: ralphrmartin
author_rank: Frequent Contributor
timestamp: July 18, 2018, 06:03:19 pm
content: Quote from: tautech on July 17, 2018, 09:33:04 pmThanks, but their smallest tip is 1 mm.

author: ralphrmartin
author_rank: Frequent Contributor
timestamp: July 18, 2018, 06:19:50 pm
content: Quote from: Gregg on July 18, 2018, 01:24:54 amThe smallest Stahlwille and Knipex have 0.9 mm tips, and while Wera make fine tools (and I already have some), they don't seem to make pliers.So, I'm still looking...
Molex DuraClik Crimper alternatives - Page 1
Forum section: electronics / general

author: akowalczyk
author_rank: Contributor
timestamp: July 04, 2018, 08:39:39 pm
content: Has anyone had any luck with finding an alternative to the $300 official DuraClik crimp tooling available from Molex?I like these connectors, and would love to be able to build them into my own projects, but I can't justify getting the real tooling right now, and doing it with pliers is just annoying.Thanks!

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: July 06, 2018, 07:25:38 am
content: I bought anEngineer PAD-01 crimping tool setsome time ago and am getting very good results for the Molex PicoBlade series.These could handle any open-barrel style crimp connector I tossed at them, but it is a little fiddly. Since the DuraClik are 2mm pitch compared to the 1.25mm pitch of PicoBlade, my guess would be, that these should be nice to handle. However, there is no ratcheting mechanism to stop you from crushing the barrel crimps and it needs some practice to get it right.The cheapest I could find the Engineer set at the time was athobbyking.com. Right now the set is $100. Since getting that crimp tool, I also got some other pliers and wire cutters from Engineer. The quality is superb and prices are decent.If you have to do a lot of crimping, you might be better off getting the official tool though. The workflow is easier and you get consistent results without having to worry about precise manual skills.

author: akowalczyk
author_rank: Contributor
timestamp: July 09, 2018, 12:40:21 am
content: Thanks for the tip, those look perfect! I've used PicoBlades as well for signal lines, just find them to be a bit small for general use.Good to know those will do JSTs for batteries as well, I somehow always end up pulling them out of the housing
what frequencies of UV break down plastic headlights and can thin coats really - Page 1
Forum section: electronics / general

author: CopperCone
author_rank: Super Contributor
timestamp: July 01, 2018, 06:33:09 pm
content: Can you really protect a polycarbonate car headlight with a coating? I want to restore some headlights.All I see on youtube is a big mess arguing about products etc. What mechanisms are at work? I would like to build some kind of tester to evaluate how much different coatings attenuate the supposedly harmful UV. I have a EEPROM eraser UV light I can use.https://www.amazon.com/UVP-Memorase-Compact-Eraser-Shortwave/dp/B00CYSZMNQ