Multimeter software that workes with many brands?

[XOIIO]

Hey all, I had noted it somewhere and promptly forgot, but I recall seeing several times a free bit of software for interfacing with all types of data logging multimeters, what is it?

[PedroDaGr8]

Hey all, I had noted it somewhere and promptly forgot, but I recall seeing several times a free bit of software for interfacing with all types of data logging multimeters, what is it?

UltraDMM?

[XOIIO]

Hey all, I had noted it somewhere and promptly forgot, but I recall seeing several times a free bit of software for interfacing with all types of data logging multimeters, what is it?

UltraDMM?

Bingo, thanks. Knew I'd recognize it when someone said it.

[Wytnucls]

UltraDMM doesn't work with the UT71 series.
This one perhaps:
http://sigrok.org/wiki/Supported_hardware#Multimeters

[XOIIO]

UltraDMM doesn't work with the UT71 series.
This one perhaps:
http://sigrok.org/wiki/Supported_hardware#Multimeters

Yeah figured that out 

I'm looking for one that might datalog a bit better or have a better live graph, the UNI-T software is fine, but excel says it is not in that file format yet it saves it as that.

That software shows it as "in progress" so I suppose it will come on an update.

I also need to maybe get a bus pirate or something, there is a small 2x4 pin header layout that I wonder if it might be for programming, if I could read the firmware and maybe tell it that it is the UT71D I could get the 10k data logging points instead of a measly hundred. It would be sweet to have that for offline and I bet that it is the exact same board as the UT71D

[Wytnucls]

The CMOS serial EEPROM is the same on the B and D models (512K I2C). The C and E models probably use the same chip.
It should be possible to release all the memory through software.

[XOIIO]

The CMOS serial EEPROM is the same on the B and D models (512K I2C). The C and E models probably use the same chip.
It should be possible to release all the memory through software.

I was thinking the UT71C and D would be the same, since the E ads power monitoring with an adapter and I think another mode.

I'm having troubling finding an eeprom chip, so far just a couple op amps, voltage references, and ram for the LCD. Once of those LCD ram chips has a sticker with C written on it so maybe it also works to hold the cal data.

[XOIIO]

Wait, found it! 24lc515h! http://ww1.microchip.com/downloads/en/DeviceDoc/21673E.pdf Tis the same beast!

[zapta]

Kst is very useful for drawing live graphs.

Sent from my Nexus 5 using Tapatalk

[Wytnucls]

Here is the layout on my 71D:

[XOIIO]

Here is the layout on my 71D:

Basically identical to mine in the thread over here: https://www.eevblog.com/forum/testgear/hacking-the-uni-t-ut71c-(wipneed-help)/

Can you dump the rom to a file? (and if so give me instructions/the tools needed to do so?)

Obviously the sticker with C on mine is not cal data, but just the model number for when they are putting them together. Do you think changing the rom will mess up cal data?

[Wytnucls]

Sorry, I don't have the tools or the skills to extract the ROM file.
I wouldn't fiddle with it too much. Enjoy the meter for what it does. Internal data capture is just a small part of its capabilities.

[XOIIO]

Sorry, I don't have the tools or the skills to extract the ROM file.
I wouldn't fiddle with it too much. Enjoy the meter for what it does. Internal data capture is just a small part of its capabilities.

Yeah, true enough but being able to datalog every second for almost 7 days would be awesome.

[Wytnucls]

The 9V battery won't last much longer than 3 days.

[danb35]

Another piece of free and open source software that supports a bunch of DMMs is QtDMM (http://www.mtoussaint.de/qtdmm.html).  It runs under *nix and MacOS; not sure about Windows.

[XOIIO]

The 9V battery won't last much longer than 3 days.

You could always just hook up a power supply.

[linux-works]

I used qtdmm on the vichy cheapie dmm:

I think I also was able to use qtdmm with some of the old radio shack rs232 meters.