Can I change the pins when I use the library LiquidCrystal

Projects Programming
5

I often use:

LiquidCrystal lcd(12, 11, 9, 8, 7, 6); 	  // Setup the LCD hardware interface pins

for my LCD's. The reason is because the UNO uses 0 and 1 for the Serial object (as Bob pointed out) and pins 2 and 3 are used for external interrupt service routines. If you don't ISR's, pins 2 and 3 are usable, too.