SED1520 LPT Port driver for LCDproc

LPT Port Interface for DIP122 LCD Module

Hardware

This is a small (it's only 27x78mm) Interface Board that lets you connect the DIP122 LCD module made by Elecronic Assembly to your PCs parallel port.
It is a SED1520-based 122x32 Pixel graphic LCD module. See the datasheet. The board includes a voltage inverter for the contrast voltage and a potentiometer for adjusting contrast. The backlight can be controlled by software.

Board Layout

Schematic

Download Files

Eagle Files: Board, Schematic
Postscript Files of Board Layout: Top Layer, Bottom Layer

Partlist

No SMD Parts were used to make soldering easy. All Parts are available from Reichelt Elektronik.

Name Description Reichelt Part No. Price

U$1 Electronic Assembly DIP122(-5NLED) LCD-Module LCD 122 DIP 31.50

IC1 ICL7660 ICL 7660 0.62

Q1 BS170 BS170 0.13

R1 Piher PT10-L 10k PIHER 10-L 10K 0.19

C1,C2 Electrolytic Capacitor 10uF 16V RAD 10/100 0.05

C3 Electrolytic Capacitor 100uF 16V RAD 100/16 0.04

C4 Capacitor 100nF MKS-2 100N 0.07

X1 SUB-D Connector 25 pin D-SUB ST 25P 0.47

JP1 Pinheader 2 pins 2.54mm STIFTL. 36G 0.17

Sum: 33.24

Software

The driver for this Hardware is in the works. (LCDproc, lcdinfo and possibly jaLCDs will be supported)

If you have remarks or want to discuss about this, visit the board !