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PICList Thread
'[OT] identifying a LCD Panel'
1999\04\08@072944 by Sebastián Dols

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Hello again PICsters. A friend has given to me an LCD panel with no info or
specs, and I am triying to identify it in order to make something usable
with it.

The only info I can see is, in different places:

SEIKO
REV 3
Japan
MI641

Is one row, and th ucontroller in the back is a 8M3- HD44780A00, with 14
pins and a C.A. connexion, so i think is backligthed..

absolute no info in a Inet search (altavista, etc.)

Somebody knows something about it?

1999\04\08@074953 by ns

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Try searching for "industry standard alphanumeric display controller". :)

You have stumbled on the standard character mode LCD display.  '44780' is
the Hitachi controller that is very common for character LCDs.  Also, the
14 pin interface is a good sign that it is at least a 44780 copy.

Seriously, search for 44780.  There is LOADs of info, pic code, an
application note on http://www.microchip.com etc. Needless to say, I never got
mine working... :(


On Thu, 8 Apr 1999, [iso-8859-1] Sebastián Dols wrote:

{Quote hidden}

1999\04\08@104137 by Wagner Lipnharski

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Take a look at:
http://www.ustr.net
click LCD button

1999\04\08@114907 by Paul Davis

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This is a 1x16 STN LCD module, probably with an LED backlight. It also
looks like
this is an obsolete part. Current part number appears to be L167100J000.
Take a peek
at http://www.eio.com/cgi-bin/byteserver.pl/m16410a.pdf . I think this
describes the
part your have. Fortunately, the pinouts of the LCD modules using the
Hitachi HD44780
controller are (as far as I can tell) identical.

There is a lot of code available to show how to use the display. One sample
(used in
a DDS synthesizer project) is at
http://waterw.com/~njqrp/mbrproj/dds_vfo4.txt . There
is also somewhere, a program that will write a test pattern to the LCD,
which works
with single and double row LCDs or different lengths. I can't find it right
now or I would
include it. I'll follow up if I can find the code.

BTW, this was all found through AltaVista  ;-)

Regards,
Paul

At 01:28 PM 4/8/99 +0200, you wrote:
{Quote hidden}

Paul Davis
Sr. Systems Engineer
OEM, Carrier Sales, Healthcare
spam_OUTpdavisTakeThisOuTspamnbase-xyplex.com
http://www.nbase-xyplex.com
184 Shuman Blvd., Suite 200
Naperville, IL. 60563
Phone: 630-717-2960 x 3072
FAX: 630-357-4237

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