The following table shows the pin details of the LCD.
LCD Pin Number Symbol Function
1 Vss Display power ground
2 Vdd Display power +5V
3 Vo Contrast Adjust. Altered by adjusting the voltage to this pin, grounding it sets it to maximum contrast.
4 RS Register select
5 R/W
6 E Enable strobe
7 DB0 Data Bus 0
8 DB1 Data Bus 1
9 DB2 Data Bus 2
10 DB3 Data Bus 3
11 DB4 Data Bus 4
12 DB5 Data Bus 5
13 DB6 Data Bus 6
14 DB7 Data Bus 7
15 A
1 Vss Display power ground
2 Vdd Display power +5V
3 Vo Contrast Adjust. Altered by adjusting the voltage to this pin, grounding it sets it to maximum contrast.
4 RS Register select
5 R/W
6 E Enable strobe
7 DB0 Data Bus 0
8 DB1 Data Bus 1
9 DB2 Data Bus 2
10 DB3 Data Bus 3
11 DB4 Data Bus 4
12 DB5 Data Bus 5
13 DB6 Data Bus 6
14 DB7 Data Bus 7
15 A
LED backlight power +5V
16 K LED backlight power ground
16 K LED backlight power ground
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