once you should also try to change the wiring as follows :-
- LCD RS pin to digital pin7
- LCD Enable pin to digital pin 6
- LCD D4 pin to digital pin 5
- LCD D5 pin to digital pin 4
- LCD D6 pin to digital pin 3
- LCD D7 pin to digital pin 2
- LCD R/W pin to ground
- 10K resistor:
- ends to +5V and ground
- wiper to LCD VO pin (pin 3)
as you know that any pins can be used for displaying anything on an LCD Screen ....