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PostPosted: Thu Jul 29, 2004 7:53 
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Joined: Tue Jun 15, 2004 8:30
Posts: 14
As far as i know, you'll need to rescue one from an old nokia; the page here shows how: [url]serdisplib.sourceforge.net/ser/pcd8544.html[/url]
:D


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PostPosted: Thu Jul 29, 2004 15:10 
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Joined: Wed Jul 28, 2004 2:16
Posts: 4
The link doesn’t work :cry:


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PostPosted: Thu Jul 29, 2004 20:44 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
Hayden wrote:
Where can I get the driver chip for the 3310 screen in Australia e.g. (jaycar or dickmiths) etc. etc
I have looked everywhere in my town

You mean the level converter IC 74LCX245/74LVC245 here ? The lcd driver/controller (PCD8544) is integrated to the display glass and the 74LCX245/74LVC245 is just used for converting the 5v parallel port signal levels to 3.3v for the PCD8544.
I know some have used it even without any level converters but I haven't tested it myself so I don't know how well that works.


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PostPosted: Fri Jul 30, 2004 1:36 
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Joined: Wed Jul 28, 2004 2:16
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What about using a regulator or resistor to drop the voltage instead of the 74LCX245/74LVC245 chip?


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PostPosted: Fri Jul 30, 2004 7:48 
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Joined: Tue Jun 15, 2004 8:30
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The link works fine, copy and paste it. :D


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PostPosted: Fri Jul 30, 2004 10:32 
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Joined: Fri Jul 30, 2004 10:17
Posts: 1
Hi! i'm new user. I made interface for my nokia 3210 display with the
schematics with resistors, and for sure i can say it doesn't work :? .
I used multimeter to measure values when LCDinfo is started, and i get voltage to high. 4,28 V. So i can say that i will try to make some conversion circuit with trasistor if i couldn't find 74LCX245 in my elec. store.

BTW. for the Henri:
i have old ericsson phone AH-320 and from it display: LPH3789
6 pin LCD
Could u have maybe pin info?


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 Post subject:
PostPosted: Sat Jul 31, 2004 16:05 
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Joined: Wed Jul 28, 2004 2:16
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Sorry the link does work I just put www. In front that’s why :wink:


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PostPosted: Sat Sep 11, 2004 9:21 
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Joined: Sat Sep 11, 2004 9:18
Posts: 3
Location: lithuania
does anybody had connected nokia 3310 lcd vith rezistors? does it work?


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PostPosted: Fri Sep 17, 2004 1:48 
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Joined: Fri Sep 17, 2004 1:44
Posts: 2
Location: Sydney, Australia
An alternative to resistors is diodes. The voltage drop across a resistor depends on what is at the other end, the current, etc. The voltage drop a diode is generally fixed at around 1 volt regardless of those things. So try using two diodes in series to drop from 5v to 3v.


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PostPosted: Sun Sep 19, 2004 0:43 
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Joined: Wed Jul 14, 2004 13:03
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To be honest normal silicon diode drops voltage by 0.7 volt. If you have 2diodes it means 1,4 volt and it not determined by current (in normal conditions).


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PostPosted: Sun Sep 19, 2004 22:34 
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Joined: Fri Sep 17, 2004 1:44
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Location: Sydney, Australia
I donwloaded lcdinfo_test.zip but I don't know what to do next. There is no readme in the archive. I am wanting to drive the PCD8544 from a DOS Basic (Power Basic) program and/or from a picaxe (www.picaxe.co.uk) so I need to see the actual code that drives it, not just DLL's.


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 Post subject:
PostPosted: Fri Sep 24, 2004 15:24 
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Joined: Sat Sep 11, 2004 9:18
Posts: 3
Location: lithuania
hello, i have connected nokia 3310 lcd
using schematic from
http://users.skynet.be/fa358153/david/t ... /index.htm
i think everything should be ok, but my display doesn normaly work
i dont know were is the problem, maybe the capacitors are wrong?
i have used capacitors without marked + and - ( i dont know how in english " ne elektrolitinis")
how many volts does it should have?
when i touch VOUT pin , lcd generates noise.
does anybody have similar problem like i have? can anybody help me?
p.s i have used Bzx85 3v9 diodes(not bzx85 3v3) maybe this is problem?
why these diodes are for?

(sorry of my bad english :oops: )[/img]


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PostPosted: Mon Sep 27, 2004 9:13 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
pmolsen wrote:
I donwloaded lcdinfo_test.zip but I don't know what to do next. There is no readme in the archive. I am wanting to drive the PCD8544 from a DOS Basic (Power Basic) program and/or from a picaxe (www.picaxe.co.uk) so I need to see the actual code that drives it, not just DLL's.

I'm pretty sure there is some code posted or at least a link to some example code in the Development forum. You can try searching there.


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 Post subject:
PostPosted: Mon Sep 27, 2004 9:18 
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Joined: Sun May 05, 2002 22:05
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Location: Lappeenranta, Finland
-A_T- wrote:
p.s i have used Bzx85 3v9 diodes(not bzx85 3v3) maybe this is problem?
why these diodes are for?

I'm not familiar with this connection method personally but the capacitors voltage rating should be probably 10V at least.
The diodes are to lower the voltage from parallel port (+5v) to lower levels that should be better for the display. 3.9v diodes should work just fine I believe.


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PostPosted: Tue Sep 28, 2004 11:42 
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Joined: Fri Sep 10, 2004 10:32
Posts: 7
i connected a variable resistor for Vin, and i can adjust contrast with it.


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