preenfm Forum

PreenFM => preenfm2 and preenfm3 => Topic started by: pld on April 15, 2014, 09:30:34 PM

Title: PreenFM2 with VFD (test)
Post by: pld on April 15, 2014, 09:30:34 PM
I have a VFD (Noritake GU140x32f-7806) that's been gathering dust forever so I figured I might as well give it a try...
When I checked the datasheet it seemed easy enough, the dimensions and connection appear to be identical to the OLED Xavier is using for the new kits.
Except I had shortened the PCB for another project so I had to *ahem* improvise a bit...

The datasheet claims "LCD compatible" but of course it didn't work ::)
After hacking some timings in the firmware - I guess the LCD/OLED are more tolerant? - it seems to work. The photo isn't great, it looks much better live.
Not sure whether to keep it...

Title: Re: PreenFM2 with VFD (test)
Post by: pld on April 18, 2014, 10:03:05 AM
Purely out of curiosity I tested the graphics mode of the VFD (140x32 pixels).
It's probably too much work to actually support the features in the firmware so this will probably just remain an experiment.
The logo is 32x32 and seemed a good idea, but bitmapped graphics + non-square pixels = blargh  ::)

Yeah, my pictures suck ;)
Title: Re: PreenFM2 with VFD (test)
Post by: recliq on April 18, 2014, 01:57:53 PM
Looks great anyways... ;)
Title: Re: PreenFM2 with VFD (test)
Post by: Xavier on April 19, 2014, 09:22:39 AM

Nice  :)
Interesting display, lots of fun modes.
Too bad it's so expensive.

Title: Re: PreenFM2 with VFD (test)
Post by: pld on April 19, 2014, 03:45:01 PM
Too bad it's so expensive.
Yes, they are quite pricey... but I think back when I bought it, it was cheaper than an OLED :)