LCD 8x2 Character Black Bezel Parallel Interface
This little 8-character, 2-line parallel liquid crystal display is a generic equivalent of the Optrex DMC-50448N-AAE-AD LCD. It is incorporated into our Orangutan SV-328 robot controllers, some versions of our A-Star 32U4 Prime microcontroller boards Zumo 32U4 and 3pi robots. It uses the common HD44780 interface, so sample interface code is widely available for a variety of microcontrollers. This is the smallest package we know of for this familiar interface.
You can find sample HD44780 LCD interface code written for a variety of AVR microcontrollers as part of the Pololu AVR library.
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
|
Dimensions
| Size: |
40 x 35 x 7 mm |
| Viewing area: |
30 x 14 mm |
| Dot size: |
0.5 x 0.5 mm |
| Character size: |
2.78 x 4.49 mm |
| Weight: |
12 g |
General specifications
| Minimum logic voltage: |
4.5 V |
| Maximum logic voltage: |
5.5 V |
| Supply current: |
2 mA |
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