What is the brain behind Dave's secret multimeter ? - Page 1
Forum section: electronics / testgear

author: ez24
author_rank: Super Contributor
timestamp: November 01, 2015, 11:26:25 pm
content: Is Dave using a PIC like this onehttp://www.ijstr.org/final-print/july2015/Design-And-Construction-Of-Digital-Multi-meter-Using-Pic-Microcontroller.pdffor his secret multimeter ? If not what is used as the brain ?

author: hamdi.tn
author_rank: Frequent Contributor
timestamp: November 01, 2015, 11:43:33 pm
content: what secret multimeter

author: mrpackethead
author_rank: Super Contributor
timestamp: November 02, 2015, 12:24:44 am
content: The brain behind Daves Meter is Dave.

author: Evil Lurker
author_rank: Regular Contributor
timestamp: November 02, 2015, 12:33:43 am
content: NE555P, LM324, and a 78L05?

author: Muttley Snickers
author_rank: Unknown
timestamp: November 02, 2015, 01:44:18 am
content: It could perhaps be the retro look for all we know.

author: NF6X
author_rank: Unknown
timestamp: November 02, 2015, 01:51:24 am
content: I'd buy an EEVblog-branded VTVM.

author: ez24
author_rank: Super Contributor
timestamp: November 02, 2015, 02:27:46 am
content: Quote from: hamdi.tn on November 01, 2015, 11:43:33 pmThat is the point. But if you look carefully you can find ithttps://www.eevblog.com/forum/testgear/multimeter-spreadsheet/msg393947/#msg393947starting at row 315 Models DM1 and DM2

author: EEVblog
author_rank: Unknown
timestamp: November 02, 2015, 03:15:07 am
content: It may or may not be a PIC

author: EEVblog
author_rank: Unknown
timestamp: November 02, 2015, 03:19:35 am
content: Quote from: 3roomlab on November 02, 2015, 12:23:10 amNo, but I'll be rebadging a Brymen I had a tiny tiny hand in.

author: VK5RC
author_rank: Unknown
timestamp: November 02, 2015, 06:11:04 am
content: Any rough idea of ETA?

author: EEVblog
author_rank: Unknown
timestamp: November 02, 2015, 06:25:55 am
content: Quote from: VK5RC on November 02, 2015, 06:11:04 amThe Brymen, this month.The something else, TBD

author: crispy_tofu
author_rank: Super Contributor
timestamp: November 02, 2015, 06:32:46 am
content: So the BM235 is probably the EEVBlog DM2 (similar specs to the BM257)... so what's the DM1?EDIT: whoops, I guess that's the something else

author: Towger
author_rank: Super Contributor
timestamp: November 02, 2015, 08:03:54 am
content: I can just see all the posts if the BM325 is not:Built like a brick dunny.Has dickie firmware.Is not accurate to a bee's dick, for at least 25 years.Fails input protection testing...

author: VK5RC
author_rank: Unknown
timestamp: November 02, 2015, 08:37:40 am
content: Good timing for Christmas, I would like to add a Brymen to my collection (none so far) .

author: pascal_sweden
author_rank: Super Contributor
timestamp: November 02, 2015, 02:08:00 pm
content: The top of the line Brymen labeled with Australian Airforce would be cool. Like the scores Dave did before at an Auction, where they had oscilloscopes that were branded with Australian Airforce label.That would make the Brymen's a real collector's item

author: MrMacman2u
author_rank: Newbie
timestamp: November 03, 2015, 04:33:07 am
content: If the DM1 has those features and specs, is "Dave Approved", and is branded EEVblog? Just... Stop... Right now, and take my money.

author: ez24
author_rank: Super Contributor
timestamp: November 03, 2015, 04:34:39 am
content: Quote from: MrMacman2u on November 03, 2015, 04:33:07 amIt will be funny to see him review his own meter.

author: EEVblog
author_rank: Unknown
timestamp: November 03, 2015, 05:26:33 am
content: Quote from: ez24 on November 03, 2015, 04:34:39 amNo meter is perfect, compromises have to be made in many ways.

author: nbritton
author_rank: Frequent Contributor
timestamp: November 03, 2015, 06:01:01 am
content: Quote from: hamdi.tn on November 01, 2015, 11:43:33 pm

author: VK5RC
author_rank: Unknown
timestamp: November 03, 2015, 07:26:16 am
content: The review of the meter would be interesting, in particular the discussion of the compromises, $, market potential, features etc.

author: ormandj
author_rank: Unknown
timestamp: January 30, 2016, 03:38:41 am
content: Did this ever come to fruition/is it still on the horizon? I'm in the market for a nicer DMM in the near future, and this sounds like it would fit the bill.

author: TheAmmoniacal
author_rank: Unknown
timestamp: January 30, 2016, 06:38:21 am
content: There is a lot more information in the Supporter's Lounge, just sayingI can't imagine selling rebadged meters being worth it, how much do you profit per meter? (and what's the international shipping cost from you?)

author: joeqsmith
author_rank: Super Contributor
timestamp: January 30, 2016, 07:24:02 pm
content: Quote from: EEVblog on November 02, 2015, 06:25:55 amI checked your Amazon store don't seem to find this meter. Could you provide me with a link? Thanks

author: PedroDaGr8
author_rank: Super Contributor
timestamp: January 30, 2016, 07:45:34 pm
content: Quote from: joeqsmith on January 30, 2016, 07:24:02 pmCheck the supporters lounge, there is a LOT of information. I don't know if you knew but when you crossed 1000 posts you got access to that sub-forum.

author: HAL-42b
author_rank: Frequent Contributor
timestamp: January 30, 2016, 07:48:16 pm
content: VTVM or bust!

author: joeqsmith
author_rank: Super Contributor
timestamp: January 30, 2016, 08:50:08 pm
content: Quote from: PedroDaGr8 on January 30, 2016, 07:45:34 pmReally?!I had no idea and just assumed I had to contribute. I'll check it out. Seems like we should at least find out how it falls in with the pack.

author: EEVblog
author_rank: Unknown
timestamp: January 30, 2016, 09:23:49 pm
content: Quote from: TheAmmoniacal on January 30, 2016, 06:38:21 amI can't tell you profit per meter, that's confidential, but it's well worth it in this case. Not in small part because Brymen's don't exactly flood the market. I probably couldn't do the same thing with Uni-T for example.Not sure about dealers carrying it though, that's double whammy import charges. I've have to look at getting them shipped directly to them.It costs $20 to ship internationally, some countries will be $30+, that's cost price for me, I don't make money on shipping.

author: Muxr
author_rank: Super Contributor
timestamp: January 30, 2016, 10:02:41 pm
content: Quote from: EEVblog on January 30, 2016, 09:23:49 pmI've had orders to ship to Australia and I don't envy you. Those shipping costs are a pain this direction too. I end up paying a few extra bucks over my standard international shipping rate for it too. So I lose a bit of money from the product's margin.

author: Towger
author_rank: Super Contributor
timestamp: January 30, 2016, 10:36:44 pm
content: Quote from: EEVblog on January 30, 2016, 09:23:49 pmI know you like the hands on approach, but would it not have been better to drop ship them directly from China?The savings on shipping to you, the long list of extra taxes and import charges you got stung with and then the expensive cost of shipping from Oz must be adding a good $25+ to the final price. Even taking into account the cost of the shippers cut.

author: gameru
author_rank: Contributor
timestamp: January 30, 2016, 10:42:42 pm
content: Brymen are made in Taiwan not China

author: wblock
author_rank: Regular Contributor
timestamp: January 30, 2016, 10:44:48 pm
content: Quote from: Towger on January 30, 2016, 10:36:44 pmTotally worth it for the "QC Approved by Probes the Monkey" sticker.

author: hibone
author_rank: Regular Contributor
timestamp: January 30, 2016, 10:55:48 pm
content: Dave's multimeter is easy to recognize...It's the only one that comes with screws in a bag.Take-it-apart ready...

author: bitseeker
author_rank: Super Contributor
timestamp: January 30, 2016, 11:40:34 pm
content: Perfect. Open the package. All the bits look good? Install screws and then turn it on.

author: EEVblog
author_rank: Unknown
timestamp: January 31, 2016, 12:12:59 am
content: Quote from: Towger on January 30, 2016, 10:36:44 pmThey are made in Taiwan, not China.

author: ECEdesign
author_rank: Regular Contributor
timestamp: January 31, 2016, 12:16:09 am
content: Dave has a multimeter? Did I miss the memo...

author: bitseeker
author_rank: Super Contributor
timestamp: January 31, 2016, 12:41:38 am
content: Nope, you just found it.

author: miguelvp
author_rank: Super Contributor
timestamp: January 31, 2016, 02:17:00 am
content: Teardown video in the works?

author: mtdoc
author_rank: Super Contributor
timestamp: January 31, 2016, 07:23:23 am
content: Quote from: EEVblog on January 31, 2016, 12:12:59 amAhem. You mean notmainlandChina. Right.

author: miguelvp
author_rank: Super Contributor
timestamp: January 31, 2016, 07:34:17 am
content: Taiwan is its own entity, not part of the People's Republic of China. Yes there is a Republic of China but that's in Taiwan, nothing to do with mainland China.Yeah, complicated, like the rest of the World

author: mtdoc
author_rank: Super Contributor
timestamp: January 31, 2016, 05:30:53 pm
content: Quote from: miguelvp on January 31, 2016, 07:34:17 amI realize that. But the Taiwanese consider themselves Chinese. In fact officially Taiwan is the "Republic of China". They still claim an area of the mainland and maintain their own large milirary to prevent forced "reunification".I was just ribbing Dave with my post - i wouldn't want him to offend his manufacturing partners.QuoteYes it is.

author: PedroDaGr8
author_rank: Super Contributor
timestamp: January 31, 2016, 05:52:55 pm
content: Quote from: mtdoc on January 31, 2016, 05:30:53 pmIt is much like Persian versus Iranian. I have some friends who were born in Iran but identify as Persian not Iranian (this is especially true of the Zoroastrians). The Zoroastrians have a legitimate reason they don't like being called Iranian, due to their persecution under the current regime. Then others who don't care if you call them Persian or Iranian. Though I don't know of any that insist I call them Iranian, but it may just be a small sample size issue.I have Taiwanese friends who do not like being called Chinese, they will request that you call them Taiwanese, they say that they are their own country, that their language, while related, is different from the Chinese spoken in China, etc. That by calling them Chinese, it implies that they don't have a right to their own independence and that the mainland is right in wanting to overthrow their democratic government and subject them to Beijing rule. On the other hand I also have Taiwanese friends that don't give a damn, Chinese or Taiwanese doesn't matter, they say that ethnically they are Chinese but nationally they are Taiwanese, so calling them either is correct. It is likely sample bias, based on the fact I only really know Taiwanese living in the USA, but I don't know of any that identify solely as Chinese.

author: mtdoc
author_rank: Super Contributor
timestamp: January 31, 2016, 06:12:26 pm
content: Quote from: PedroDaGr8 on January 31, 2016, 05:52:55 pmThat's a good analogy.I thnk it's a generational thing as well. I know some older "Taiwanese" who are offended if you imply that they are not from China. "I'm not from Taiwan, I'm from theRepublicof China" they'll say. The memory of the Chinese civil war that forced their families (and government) to move to the island is still fresh in their minds.

author: LeoUCDavis
author_rank: Contributor
timestamp: January 31, 2016, 07:16:22 pm
content: Quote from: PedroDaGr8 on January 31, 2016, 05:52:55 pmThe language they speak on the mainland and in Taiwan is the same.

author: PedroDaGr8
author_rank: Super Contributor
timestamp: January 31, 2016, 07:34:36 pm
content: Quote from: LeoUCDavis on January 31, 2016, 07:16:22 pmThey gave it a different name though, something like Hoeken or something like they. I wouldn't ever claim to be a linguistic expert but I've had several friends insist it is different from Chinese. They might just be super nationalistic and enhancing minor differences. No clue to be honest.

author: mtdoc
author_rank: Super Contributor
timestamp: January 31, 2016, 11:25:41 pm
content: It's the same language. It's only been 66 years since the split. Same language (Mandarin), same ethnicity(Han Chinese), same culture for the most part.

author: EEVblog
author_rank: Unknown
timestamp: February 01, 2016, 12:37:22 am
content: Quote from: VK5RC on November 02, 2015, 06:11:04 amSome Oz supporters already have one in the post and will get it today or tomorrow.Orders are not open to non-supporters yet.But this is not my "secret" meterYou can see the rebadged one here though:http://www.eevblog.com/files/BM235-Manual-EEVblog.pdf

author: ludzinc
author_rank: Unknown
timestamp: February 01, 2016, 01:12:22 am
content: From the manual:"Trouble ShootingIf the instrument looks to be buggered"GOLD!

author: Muxr
author_rank: Super Contributor
timestamp: February 01, 2016, 02:06:19 am
content: That color scheme is much better than the standard Brymen. I dig it.

author: ez24
author_rank: Super Contributor
timestamp: February 01, 2016, 05:42:47 am
content: Quote from: EEVblog on February 01, 2016, 12:37:22 amDave - would you allow me to make 500 posts on the same subject ? (to become supporter)?Can you tell me what city they come from? Just curious - I lived in Taiwan for 5 years - so I just wonder where they are made.\Edit : only 50 posts to go (not 500) - I cannot believe it

author: Tom45
author_rank: Frequent Contributor
timestamp: February 01, 2016, 05:46:52 pm
content: Quote from: hibone on January 30, 2016, 10:55:48 pm"Don't take it apart, put it together"

author: ADC-1995
author_rank: Regular Contributor
timestamp: February 01, 2016, 07:23:06 pm
content: I didnt see the local Aussie price. What does the 'not secret' EEVBlog branded DMM sell for?I like the meter.EDIT: found it on a new post!

author: rt
author_rank: Regular Contributor
timestamp: February 02, 2016, 07:03:24 am
content: Will it be available in yellow?

author: crispy_tofu
author_rank: Super Contributor
timestamp: February 02, 2016, 07:18:52 am
content: Quote from: rt on February 02, 2016, 07:03:24 am*Fluke bursts through the front window*

author: Towger
author_rank: Super Contributor
timestamp: February 02, 2016, 07:53:07 am
content: Ok. So we will agree that Taiwan is not China and I assume they don't have a subsidied postal service, where everything is a $2 gift.Still looks like good value.Do Tektronics have a patent on blue multimeter holsters :-)

author: HAL-42b
author_rank: Frequent Contributor
timestamp: February 02, 2016, 08:07:09 am
content: Quote from: crispy_tofu on February 02, 2016, 07:18:52 am

author: ADC-1995
author_rank: Regular Contributor
timestamp: February 02, 2016, 06:24:05 pm
content: Fluke agents! Radio, cuffs, weapon, and most important....MULTIMETER.

author: Muxr
author_rank: Super Contributor
timestamp: February 02, 2016, 06:31:37 pm
content: Quote from: HAL-42b on February 02, 2016, 08:07:09 amoriginal

author: bitseeker
author_rank: Super Contributor
timestamp: February 03, 2016, 03:49:52 am
content: Quote from: EEVblog on February 01, 2016, 12:37:22 amI like it!

author: Brumby
author_rank: Unknown
timestamp: February 03, 2016, 04:47:19 am
content: Gotta love this.... (from the manual)Dave's Note:Proper ceramic HRC (High Rupture Capacity) fuses are expensive,but they are designed to fail safe and not explode. That makes you safer.Don't be a tight arse and put cheap glass ones in there instead! If you wantedcheap you should have bought a cheap arse meter instead of this one.Beware the fakes on ebay!

author: EEVblog
author_rank: Unknown
timestamp: February 04, 2016, 06:10:35 am
content: Teardown photos for those interested:https://flic.kr/s/aHsktJhSBY

author: HAL-42b
author_rank: Frequent Contributor
timestamp: February 04, 2016, 06:28:23 am
content: Quote from: EEVblog on February 04, 2016, 06:10:35 amNo way this is going to pass an EEVBlog teardown. Look at those solder blobs! And no blast shields either!!

author: bitseeker
author_rank: Super Contributor
timestamp: February 05, 2016, 12:24:22 am
content: Ooh, the varistors are color-coordinated with the integrated holster.

author: Helix70
author_rank: Unknown
timestamp: February 06, 2016, 07:21:57 am
content: Quote from: crispy_tofu on February 02, 2016, 07:18:52 am?? Both my fluke meters are grey, in an orange holster. Do they even make a yellow meter?

author: crispy_tofu
author_rank: Super Contributor
timestamp: February 06, 2016, 08:46:09 am
content: Quote from: Helix70 on February 06, 2016, 07:21:57 amThe holster is yellow (cheese-coloured?). They've even trademarked it!Related:https://www.sparkfun.com/news/1428

author: Helix70
author_rank: Unknown
timestamp: February 06, 2016, 09:19:17 am
content: Looks orange to me.

author: Wytnucls
author_rank: Super Contributor
timestamp: February 06, 2016, 09:19:54 am
content: Incoming Metrel mortar fire!

author: Scottjd
author_rank: Frequent Contributor
timestamp: February 11, 2016, 08:35:11 am
content: Quote from: Wytnucls on February 06, 2016, 09:19:54 amLooks like a Brymen, but with features for automotive like RPM.If it is a Brymen rebrand the disturbing part is the color looks to be the same as the EEVBlog meter color. I thought Brymen promised him that was going to be only his color and they wouldn't use it with any other rebrand?I guess we will find out when it get torn down if anyone buys it.

author: Wytnucls
author_rank: Super Contributor
timestamp: February 11, 2016, 11:51:27 am
content: They are rebranded Brymen meters, as sold by Emona in Australia.http://www.emona.com.au/products/electronic-test-measure/multimeters.Metrel is based in Slovenia, if I'm not mistaken.http://www.metrel.si/products/digital-multimeters-current-clamps-voltage-testers/digital-multimeters.htmlI don't think they would be as protective as Fluke about the color of their rubber boots.Their agents in the US are AVOX Technologieshttp://www.avoxtechnologies.com/products/metrel/multimeters/MD9060 aka BM869MD9050 aka BM829MD9040 aka BM822MD9016 aka BM257

author: rsjsouza
author_rank: Super Contributor
timestamp: February 11, 2016, 12:34:47 pm
content: Quote from: EEVblog on February 04, 2016, 06:10:35 amFluke better beware; the meter looks really well put together with the big honking via stitching, the beefy R12 high voltage resistor and the riser board acting as a bit of blast shield for the first line of defense. Perhaps send one to joeqsmith?I wonder if longevity tests were done to the meter. The small IDC headers of the riser board are one of the points that I have seen introduce mechanically induced noise and increase low-ohm measurements. It is a 6000 count meter, thus I am unsure if this is a concern.The other aspect would be the survivability of the riser board if the meter falls flat on its face with the leads plugged in. From the pictures I have the impression the extended square PCB for the "A" jack is the weakest point (despite the large solder blobs).These are nitpicking details, but overall Brymen does not disappoint. Excellent meter!

author: Towger
author_rank: Super Contributor
timestamp: February 11, 2016, 12:38:27 pm
content: Going on the dates on a couple of PDFs I looked at the MD9035 appears to have been first produced in 2012.http://eshop.micronix.sk/data/sk/att/002/9027-6061.pdfIt is quite similar but it very much for the automatic market. Cat 2 rated, so may not have the daughter board for the input sockets.Dave, did you inquire into the possibility of Brymen adding a ESR measurement function? I basic 100Hz test with decent input protection would be a nice addition and make the meter standout from all the other models on the market.

author: EEVblog
author_rank: Unknown
timestamp: February 11, 2016, 12:47:01 pm
content: Quote from: Scottjd on February 11, 2016, 08:35:11 amNo, I simply asked for Blue. Anyone other rebadger is free to ask for a blue too.QuoteThat is not the new 230 series, it has a bargraph. Likely the older 250 series.

author: EEVblog
author_rank: Unknown
timestamp: February 11, 2016, 12:49:00 pm
content: Quote from: Towger on February 11, 2016, 12:38:27 pmThis is a not a custom meter design, I couldn't just ask for anything I wanted.

author: Wytnucls
author_rank: Super Contributor
timestamp: February 11, 2016, 12:56:51 pm
content: Quote from: Towger on February 11, 2016, 12:38:27 pmThe Metrel MD9035 is the same as the CAT II 1000V Brymen BM319, produced for the automotive market.

author: Scottjd
author_rank: Frequent Contributor
timestamp: February 11, 2016, 02:07:29 pm
content: It looks like the EEVBlog meter is now live for the cart to order.Dave must have finished the web cart add on now, so I guess it's time to order one.https://www.eevblog.com/product/bm235-multimeterThis may have been posted on other threads, but I didn't see it in this thread so I thought I would add it.Now it's a waiting game for the other secret item he mentioned.

author: Towger
author_rank: Super Contributor
timestamp: February 11, 2016, 02:11:04 pm
content: Quote from: EEVblog on February 11, 2016, 12:49:00 pmI know. But for a while have thought it would be a useful feature, which none of the current multimeters have. It is the preserve of ICR meters, DIY component testers and the odd dedicated device.EditI just bought a BM235 off you this morning, why do I still have a deep need to buy yet another meter with a ESR function?... Dam GAS is acting up again....

author: ozwolf
author_rank: Regular Contributor
timestamp: February 12, 2016, 10:10:01 am
content: What subtle marketing you have Dave! You spend years telling us we need multiple meters, now I've gone and bought one of yours...My small way of saying thanks for all of the videos and entertainment you've given me for the last couple of years.Ozwolf

author: Towger
author_rank: Super Contributor
timestamp: February 12, 2016, 10:49:04 am
content: Quote from: ozwolf on February 12, 2016, 10:10:01 amHe'll soon be tweeting about how much a chore packing and hauling all the meters down to the post office has become.

author: crispy_tofu
author_rank: Super Contributor
timestamp: February 12, 2016, 09:47:39 pm
content: Quote from: Towger on February 12, 2016, 10:49:04 amAre you psychic?

author: Scottjd
author_rank: Frequent Contributor
timestamp: February 13, 2016, 01:48:04 am
content: Quote from: crispy_tofu on February 12, 2016, 09:47:39 pmWhat, shipping bugs. Well at least he didn't have cart bugs and shipping bugs at launch.

author: spartacus976
author_rank: Newbie
timestamp: May 18, 2016, 08:05:42 pm
content: Any updates on the DM1? I'm looking to buy a nice multimeter and would like to know if I should wait or go ahead and buy the BM235. The BM 235 looks fantastic - but if the next one will be even better I'd be willing to wait.Specifically...1) Can we have a general timeframe for release of DM1? (1 month? 6 months?)2) How accurate are the specs on Wytnucls’ chart for the DM1? (Will DM1 not have NCV or Input Jack warnings?)Thanks!

author: Towger
author_rank: Super Contributor
timestamp: May 19, 2016, 06:52:25 am
content: No response from those who have access to the elite section....To answer 1. Listening to the Amp Hour. At least 6 months a way, as with all these things probably more.

author: EEVblog
author_rank: Unknown
timestamp: May 19, 2016, 02:17:07 pm
content: Quote from: spartacus976 on May 18, 2016, 08:05:42 pmThey are entirely different meters in entirely different price ranges.Quote6 months.QuoteNo NCV. Yes on jack warning.

author: Neo2199
author_rank: Contributor
timestamp: October 28, 2016, 04:53:48 pm
content: I am looking for some nice multimeter to upgrade my current once. I am wondering any update on DM1? Specs are looking good.Would be a nice Christmas presentThanks

author: bitseeker
author_rank: Super Contributor
timestamp: October 29, 2016, 09:20:31 pm
content: Dave will release no device before its time.

author: ez24
author_rank: Super Contributor
timestamp: October 30, 2016, 01:39:40 am
content: Looking back I was asking what was the MCU in it (not the 235). I forgot the model number of the "secret meter".Somewhere it is listed and it is a Stm32 (it started out as a PIC), but I do not know which one.Probably someone should link in the thread that is more about his "future" meter. The last I heard was Dave was trying to figure out what to do with the extra OFF switch (I cannot imagine designing 2 OFF switches)It sounds like it is still being designed (final stages - the case is final) so it is not going to make it by Christmas but early next year.It is being designed and made in Korea by a secret team of engineers. I expect it will be sold on Amazon like this one is:https://www.amazon.com/EEVblog-BM235-Brymen-Multimeter/dp/B01JZ1ADCO/ref=sr_1_1?ie=UTF8&qid=1477791391&sr=8-1&keywords=eevblog+bm235+multimeter#customerReviews

author: ez24
author_rank: Super Contributor
timestamp: October 30, 2016, 01:50:58 am
content: Quote from: blueskull on October 30, 2016, 01:46:18 amblueskill what are you drinking? Are you a Cubs fan (they are down right now)?

author: ez24
author_rank: Super Contributor
timestamp: October 30, 2016, 02:21:45 am
content: Quote from: blueskull on October 30, 2016, 01:57:38 amSorry I have no idea what you are talking about. A long time ago I asked Dave what MCU was in his new meter (not the 235) and he said PIC then the company making it changed it to a STM32 but I forgot which one. That is the brain behind his meter, that is all I was asking. I have no idea what a journal has to do with anything? I just guess you are a Cubs fan (they are losing)FMI (for my info) do you make YT videos?thanks