Panel Wiring Information

 

Connections to LCD, Rotary Encoder, Pushbuttons

Device Pin Name Pin # J7 Signal J7 Pin #
LCD DB7..DB4 14..11 P2.3..P2.0 4..1
LCD R/W* 5 P2.5 6
LCD RS 4 P2.4 5
LCD E 6 P3.4 8
LCD VSS 1 GND 14
LCD VCC 2 N/A N/A
LCD VEE 3 N/A N/A
         
Encoder A 2 P3.2 11
Encoder B 4 P3.3 13
Encoder GND 1, 5 GND 14
Encoder VCC 3 N/A N/A
         
Buttons rows N/A P2.3..P2.0 4..1
Buttons columns N/A P3.7..P3.5 12, 10, 9