20x4 Character LCD with LED Backlight (Parallel Interface), White on Blue
This 20-character, 4-line parallel liquid crystal display provides a large viewing area. It features white text on a blue background with an LED backlight and uses the common HD44780 interface, so sample interface code is widely available for a variety of microcontrollers.
Pinout
Pin | Symbol | Function |
---|---|---|
1 | Vss | ground (0 V) |
2 | Vdd | 5 V logic supply voltage |
3 | Vo | contrast adjustment |
4 | RS | H/L register select signal |
5 | R/W | H/L read/write signal |
6 | E | H/L enable signal |
7-14 | DB0 – DB7 | H/L data bus for 4- or 8-bit mode |
15 | A (LED+) | backlight anode |
16 | K (LED-) | backlight cathode |