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The LCD panel |
Take a cheap LCD panel based on the widely known HD44780 chip. Its
connector will have 14 pins (16 if backlighted) which you will
connect to the parallel port as follows :
LCD pin | wired to | | LCD pin | wired to |
1,3,5 | power ground, // 18-25 | | 9 | // 4 (D2) |
2 | power +5 volts | | 10 | // 5 (D3) |
4 | // 14 (feed) | | 11 | // 6 (D4) |
6 | // 1 (strobe) | | 12 | // 7 (D5) |
7 | // 2 (D0) | | 13 | // 8 (D6) |
8 | // 3 (D1) | | 14 | // 9 (D7) |
The +5v power should be directly connected to the power supply. If you
are just doing some tests on your standard PC, you can
take the +5v from the joystick output (pin 8).
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