Electronics > Repair
HP 34401a DMM with leaking segments
<< < (13/45) > >>
bitseeker:

--- Quote from: qu1ck on June 27, 2018, 02:58:35 am ---I even thought of doing the whole thing on esp8266 and stream data to any mobile device/pc. Then you can have any graphs you want. But that is also a lot of software to write and I'm in this business for the rosin smoke lol. When I publish the protocol maybe someone else will do it.

--- End quote ---

Yep, was just brainstorming, rather than intending for anyone in particular to implement. Thanks for making the project open. :-+
qu1ck:
Had a productive couple of days on holidays.
Git log:
* b4a62e0 (HEAD -> master) Fix blink interrupt bug
* f16535b Hide bar in menus
* dbaedcc Implement blinking chars
* 016474b Overhaul decoder, separate event handler logic
* 9033e10 Improve init sequence
* 2e2d7ea Clean up display lib
* c055959 Wrap things in namespaces
* 531cf67 More main.cpp cleanup

I implemented one of the last main lacking features, blinking characters. The display is quite usable now. There are some niceties left like better fonts and correctly aligned glyphs but I'm really close now.
Time to start thinking of hardware. I think I'll just remove the filament voltage bias and use that winding of the transformer as power supply for my thingamabob. Haven't tried how the display and blue pill fits inside yet. Hopefully I won't have to do a custom board too, as much fun as that is.
bitseeker:
Thanks for the update. Yeah, hopefully it all fits nicely inside. Keeping my fingers crossed.
qu1ck:
Wrote bmp file to binary convertor and now we have proper icon support. See debug image below with all annunciators lit (diode and continuity are icons).


Funny thing, MS paint is the only (free) program that still supports monochrome bmp that I could find. And it has a bug where you can't paint in white with pencil tool :D
HighVoltage:
Very nice and impressive work!

How does it show up, if you put the Agilent window in front of your display.
Is it still readable?
Or do you rather have to use a clear custom window?
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod