|
Parallel Port | LCD | Function |
18 | 1 | Ground |
+5v | 2 | Supply voltage for logic (+5V or + 3.3V) |
18 | 3 | Contrast adjustment |
14 | 4 | Data/Instruction select |
19 | 5 | Read/Write select |
1 | 6 | Enable Signal |
2 | 7 | Data Bus 1 |
3 | 8 | Data Bus 1 |
4 | 9 | Data Bus 1 |
5 | 10 | Data Bus 1 |
6 | 11 | Data Bus 1 |
7 | 12 | Data Bus 1 |
8 | 13 | Data Bus 1 |
9 | 14 | Data Bus 1 |
15 | LED power supply +5V for backlit displays | |
16 | LED power supply -5V for backlit displays |