[sdiy] Cheapo LCD display

[Graham Atkins]

Hi Eric,

You can't complain much at 1$ for 2 displays.... About a year back I  
thought my well cared for Fluke 79 had a faulty display. Some of the  
display segments were unreadable perpendicular to the normal
plane and could only be seen at a very acute angle. After finding that  
the display was no longer stocked by Fluke spares, I did some  
Googling. I found someone with a different fault but it gave me the idea
to remove the display and elastomer strips from the main PCB and, like  
you, I cleaned everything with IPA. There appeared to be some  
oxidisation on the PCB pads. Re-assembled it all and it works  
perfectly again.

Graham

On 23 Sep 2009, at 01:22, Eric Brombaugh wrote:

> A few months back I came across a website that described reverse  
> engineering an inexpensive surplus graphic LCD display. I designed  
> my own board for it incorporating an inexpensive Microchip dsPIC  
> processor and I've been testing it out for the last few weeks. More  
> details here:
>
> http://members.cox.net/ebrombaugh1/synth/dsPIC_lcd/index.html
>
> Probably the most interesting applications running on it now are  
> simple proof-of-concept real-time Oscilloscope and Spectrum analyzer  
> functions. They're crude but functional and pictures plus source  
> code are available at the site above. Could be prettied up and  
> extended (or even combined into a multi-mode device) and might make  
> an interesting DIY feature for a modular synth.
>
> Comments / questions invited.
>
> Eric
>
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