Products > Test Equipment
EEVBlog 121GW Discussion thread
EEVblog:
--- Quote from: Ro Max Well on March 05, 2023, 06:07:54 pm ---i just had received my 121 GW Multimeter when I stumbled over the newest commit in the gitlab for the 121GW's Multiplatform App:
User Dave added to the Readme File:
--- Quote ---This is the latest and last official EEVblog 121GW cross-platform Visual Studio Xamarin/UWP app for Android, Windows, and Apple iOS targets.
--- End quote ---
So what does that mean? Is the 121GW phasing out? Or is it just the App development, that is discontinued? Is there any official statement?
--- End quote ---
No, it's not being phased out. But the app has not been developed since David2 who wrote it left whenever the last commit date was. And I still have no plans to develop the app, that's why the source code is there.
I updated the readme file because it wasn't obvious this was a cross-platform source code.
golftango:
--- Quote from: unknownparticle on July 24, 2022, 05:18:48 pm ---Hi all,
Regarding the firmware update procedure for the 121GW.
I have read the words in the manual but am still unsure of the exact procedure.
So, do I need an additional SD card to the one installed in the meter to load the new firmware? What capacity SD card? There is no mention of this in the manual.
My laptop does not have an MSD card slot, so how do I install the file on the card?
I realise these questions may induce a groan from the seasoned tech vets on here but I am just not very familiar with this stuff ???
--- End quote ---
i'm really late to this party and i wish i'd found this meter about 3-4 meters earlier! first order of business is to update the firmware and i found i had v1.22 and when i removed the sd card i found a .bin file with a date of 2018 i believe. the v2.05 file i had was named xxxx2.05.bin and the file already there was named xxxx.bin without a version number. i saved that file off just in case but i didn't rename my xxxx2.05 file and proceeded.
it all worked up to the point where i have iap- and douun on the screen, but it's frozen. i suspect i'm going to have to go back to the card and take that version number out of the file name. but there's a dire warning about aborting the procedure but i can't see how i can do anything but since it's frozen and obviously no doing any processing and maybe that's the saving grace.
>>> later note: nevermind, that was indeed the problem. this time i got a progress bar and it finished within seconds. >>>
except for the thickness, i absolutely love the size of this meter. i got two meters before this one and they are both too huge to carry without a porter or a wheelbarrow. i very nearly got a fluke 117 or an owon b41t just for the size before i came across this one accidentally.
i'm glad i opened this one up because i found a bad thing right away. the springs at the negative ends of the batteries were sticking straight up. in fact, it was quite difficult to put the batteries in so that the springs were in the proper position--they kept trying to escape elsewhere.
/guy
EEVblog:
--- Quote from: golftango on March 07, 2023, 09:20:10 pm ---except for the thickness, i absolutely love the size of this meter.
--- End quote ---
The original design was thinner and used AAA batteries. But for better battery life we decided on a thicker AA design.
golftango:
--- Quote from: EEVblog on March 08, 2023, 01:57:49 am ---
--- Quote from: golftango on March 07, 2023, 09:20:10 pm ---except for the thickness, i absolutely love the size of this meter.
--- End quote ---
The original design was thinner and used AAA batteries. But for better battery life we decided on a thicker AA design.
--- End quote ---
it would be a hard decision for me if i was the designer as well. aa batteries are cheaper and more common than aaa's as well as having more capacity and that would be needed to support bluetooth, sd card r/w, and a backlight. i think you made the right decision as i'm not sure having a thinner meter would be worth giving up those advantages.
btw, the bt worked flawlessly on ios with the meteor app. i'd read there was once an ios app from you guys as well, but reading recent posts here seem to indicate it's been abandoned along with the other two platforms on the same codebase. would be great if someone would make a mac os app for it so i wouldn't have to squint at the iphone but even though many ios apps will run on the mac m1, meteor doesn't seem to be one of them.
but i do have a chromebook and an android tablet and i see there are at least two apps which support the meter, so i'll try them out for times i need a bigger display.
/guy
JDW:
--- Quote from: golftango on March 08, 2023, 02:27:44 am ---but i do have a chromebook and an android tablet and i see there are at least two apps which support the meter, so i'll try them out for times i need a bigger display.
--- End quote ---
Please let us know if Android or Windows apps allow you to set the Interval timing because Meteor does not. Meteor sadly seems to lock the interval to a fixed 500ms/sample (approximate). Bluetooth logging seems to ignore the meter's "ln" interval setting entirely. That wouldn't be an issue if the app allows you to change the interval, but I see now way to do that in the Meteor app. That's why I am curious if the Android or Windows apps do allow changing the interval, and if not, what their fixed interval is between samples.
For now, the only way to get the faster 200ms sampling speed is to long-press the MEM button and log to the SD card. Would be great if it could be shorter, but I guess we need to keep our expectations in check. Also bear in mind there is a limit of 600,000 samples total, regardless of your chosen "ln" setting Interval speed.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version