Michael:

I purchased a few of these and so far, I have yet to get any of them working. On
e of them may have been shot when I hooked it up in reverse - $3.95 pissed away
- no biggie. Yet the other two don't seem to respond at all. I would think that
even without a signal I should be able see something happen with the display whe
n the LCD voltage is adjusted from 0-5V, but I see no changes. The backlight LED
 works great, so the worst case is they become sophisticated night-lights ;-)

I'm using the 4-bit interface. I thought timing might be an issue, so I slowed t
he 16F84 down to eliminate that as an issue. I can see the appropriate signals r
eaching the device on my o-scope, looks like clean signals with sharp rise/fall
transitions. I'm not one to give up easily, so I'll keep plugging away - if you
have suggestions, I'd be really happy to hear them.

Thanks!

-------Original Message--------
> I purchased this unit from mpja, and found their spec sheet which shows
pinouts. What it doesn't describe is the method of interfacing with the
unit. Anybody know how to work with this device?
>
Try looking at Myke Predko's website for interfacing PIC's to LCD's.
There is a lot of information about what is needed to set up the
interface as well as displaying characters.


Take a look at: http://www.myke.com/engres/lcd.htm
as well as some of his other articles at Rentron:
http://www.rentron.com/pic.htm


Michael Barker


P.S. - How is the LCD unit?  I was interested in purchasing one
of these as well as the 20x1 LCD modules.



Myke - hope you don't mind me plugging your sites-they've come in
handy plenty for me, especially after I bought your book on PICs.

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