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PostPosted: Sun Oct 02, 2005 14:02 
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Joined: Sun Oct 02, 2005 13:31
Posts: 1
Hello, im pretty new to the LCD thing, i took an old isdn tel. apart
and got a nice big LCD screen out of it.
I want to hook that thing up to my PC, fits perfectly into the 5.52 bay:D
Now, i've been searching the whole inet for some facts about it, but found only some descriptions about the controller on it, a HD4470A00
the complete description is hd44780a00 it has 2 other smaller controllers on it but they are unnamed othr things written on the board are:
NEA02053AA
LDSCC7031D
21055138
didnt find anything useful searching google on them
I found some facts about hooking up HD44780 controllers (it has 14 pins)
1 Vss - - Power supply (GND)
2 Vcc - - Power supply (+5V)
3 Vee - - Contrast adjust
4 RS 0/1 I 0 = Instruction input
1 = Data input
5 R/W 0/1 I 0 = Write to LCD module
1 = Read from LCD module
6 E 1, 1->0 I Enable signal
7 DB0 0/1 I/O Data bus line 0 (LSB)
8 DB1 0/1 I/O Data bus line 1
9 DB2 0/1 I/O Data bus line 2
10 DB3 0/1 I/O Data bus line 3
11 DB4 0/1 I/O Data bus line 4
12 DB5 0/1 I/O Data bus line 5
13 DB6 0/1 I/O Data bus line 6
14 DB7 0/1 I/O Data bus line 7 (MSB)

is this the right pinout for this screen?cos i dont want to destroy it
and if it is, please guide me to where i could find out how to hook it up to the parallel port.

Thank you!


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PostPosted: Sun Oct 02, 2005 14:05 
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Joined: Sat Apr 17, 2004 17:42
Posts: 467
Location: The Netherlands
http://lcdsmartie.sourceforge.net/circuits.htm
for the most common HD44780 to LPT scheme, and Smartie one of the best character LCD software.

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