Author Topic: Fluke 8050A and others -> LCD to LED conversion "drop in" replacement screen  (Read 2531 times)

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Offline frozenfrogz

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Dear all,

apart from several 80xx hand DMMs I own a desktop 8050A. The LCD is still perfectly fine but after seeing all the nice LED conversions (as on Mr.Modemheads site et.al.), I am thinking about also doing my take on the matter.
I thought it might be beneficial for a lot of people if there was a simple drop-in solution. It might take some time, but I would like to make a custom PCB with SMD parts and a matching lasercut passepartout - open source of course. :)

Of course I could just go with a one-off build for my own unit (see already documented projects via link above...), but thought others might like a less fiddlys olution that is easy to retrofit.

On a side note, I will learn stuff by doing this. :)

Please let me know what you think!

Kind regards,
Frederik
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Offline coromonadalix

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Similar projects :

A new graphic display for a Fluke 8050A multimeter
http://vondervotteimittiss.com/belfry/?p=180

Fluke 8050A Multimeter LCD Display Project
https://madnessinthedarkness.transsys.com/projects:fluke8050a:start

Fluke8050A Hi Res Display
https://sites.google.com/site/kenselectronicsprojects/fluke8050a_display

And a led conversion,  has links to other projects
http://mrmodemhead.com/blog/gallery/fluke-8050a-led-conversion/
« Last Edit: July 28, 2018, 12:56:23 pm by coromonadalix »
 
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Offline frozenfrogz

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Similar projects :

Yes, thank you. :) Of course I read all of these. My point is, that all those projects (no intention of giving these too little credit!) are hacked together prototypes.
I am interested if there is a demand for a more streamlined and user friendly "kit" version.
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Offline precaud

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I am interested if there is a demand for a more streamlined and user friendly "kit" version.

I'd take one.   :-+  My 8050A would get more use if the display was easier to at off angles.
 

Offline coromonadalix

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Some of theses projects are from 2014, i think if there was a demand, we should have heard of it ???  my 2 cents
 

Offline precaud

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Some of theses projects are from 2014, i think if there was a demand, we should have heard of it ???  my 2 cents

Ssshhhh... don't discourage him!
 

Offline coromonadalix

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Not trying to discourage any one, but projects exists, what his contribution would do for an "old 20,000 count dmm" who has basic measurements ???  Just asking ... ??  A drop in board  would be very nice indeed.

If he wants to do it, he can.


For me I love the 34401, 34410  fluke 8845, 8846  ... any good meter with vfd's  that i could replace with graphical displays and get rid of the vfd problems, or unobtanium display parts.

Sure vfd are fine when new, but in time, the fading / brightness problem is a killer ... I simply lack the knowledge to do reverse engineering on the communication protocols ... I'm in love with the HP 3458 led conversion project  WOW
 

Offline precaud

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For me I love the 34401, 34410  fluke 8845, 8846  ... any good meter with vfd's  that i could replace with graphical displays and get rid of the vfd problems, or unobtanium display parts.

I'm in love with the HP 3458 led conversion project  WOW

Those are comparing apples and oranges. For most uses, 6+ digits is totally unnecessary. And an ancient 20,000-count DMM with excellent 50kHz TRMS converter does the basic things extremely well. I would definitely use mine more if it had a more readable display.
 

Offline xwarp

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I'd like to see both since I have an 8050 and a 34401.
 

Offline tomeo.gonzales

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Not 100% related with this topic but close   :)
I have a fluke 8842A with a dim VFD display.
Are you aware about any project to replace the VFD display with a LCD or OLED one?
Thank you.

 

Offline frozenfrogz

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Not 100% related with this topic but close   :)
I have a fluke 8842A with a dim VFD display.
Are you aware about any project to replace the VFD display with a LCD or OLED one?
Thank you.

I do not know about the specific integration for that meter, but it uses the Intel P8279-5 IC that seems to interface with a variety of display technologies.

Edit: See Fluke 8842A manual at page 261 for schematic with display driver.
« Last Edit: July 31, 2018, 08:40:37 pm by frozenfrogz »
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Offline coromonadalix

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« Last Edit: July 31, 2018, 09:14:59 pm by coromonadalix »
 

Offline tomeo.gonzales

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Thank you very much for your help.
I'm more a software guy than a hardware one so what I really need is a hardware interface for Fluke 8842A to a LCD TFT display.
 

Offline coromonadalix

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