Em 23/3/2011 10:35, PICdude escreveu:
> Hi all,
>
> Tinkering with a 40x4 LCD.  Haven't found a full datasheet yet, but =20
> this is the physical data...
> http://www.winstar.com.tw/products_detail_ov.php?lang=3Den&ProID=3D41
>
> With the two enable pins and the repeated addressing of the character =20
> positions, I suspect it's just laid out two 40x2 LCDs in one.  And I'm =20
> fairly sure I've heard this before somewhere.
>
> However, I have doubts on the pinout.  The pins are labeled in reverse =20
> order (compared to the 16x2, 20x2), but comparing pin positions, =20
> almost all lines (DB0-7, R/W, Rs, Vo) are in the same position, but =20
> the Vdd & Gnd lines are reversed.  Is this correct?  Or could it be a =20
> datasheet error?  I want to be sure before I fry this thing.
>
> Cheers,
> -Neil.


Different models of displays may have the connector on different
locations and orientations.
I have one 20x4 display here with the connector above the screen. If you
orient it in a way similar to other models, the text appears upside-down.


Best regards,

Isaac

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.