Lcd pin out help

[smeghead]

Not sure if this is the right part of the forum fer this , i recently purchased some lcd displays from evilbay, and wondered if anyone has the connection pinouts, ive searched for a datasheet all to no avail, im waiting for the seller to email the diagrams but dont hold out much hope

the markings on the modules are as follows

1st one 4DMC-2021 STLDN D020S

2nd one 4GLM-12232

many thanks in advance

[mackrackit]

Does it look anything like the one in the manual under LCD, 14 or 16 pins?

If so then just try that set up???

[smeghead]

16 pin, 2 rws of pins 1 row numbered odd other row numbered even, will try the pins as in the manual and see if that works


many thanks for your prompt responce

[Darrel Taylor]

The 2nd one is a 122x32 GLCD

http://www.esnips.com/doc/1e1f1f03-c...-12232-5LDE-5V

[rhino]

4DMC-202-1

Datasheet is from the same place Darrel points to.
http://www.esnips.com/doc/c88ddf19-9...d83cfe251/4dmc

20X2 character display. KS0076B controller.

[Ioannis]

I don't know about G-LCD's but recenty I had an issue with an 2x16 LCD from Winstar.

All known LCD's I 've used up to this moment had the #1 pin as GND and #2 pin as Vdd. The Winstar has the power supply in the opposite order! So read the manuals and Data Sheet is still valid!

Also I used to ground the contrast pin as it was not necessary to adjust it. All LCD that I got this month need to be adjusted through a trimmer! And I did not put that thing on the PCB... :-(

Ioannis