No, it doesn't need PWM.You could use PWM for backlight control, but that has nothing to do with the LCD itself, nor with its library.There might be other reasons not to choose those pins you put in your example like some specific function a pin might have and you'd need.But you can use any pin you like.
Alright sweet! Should I add [solved] or whatev to the name of the topic?
Optional. Nobody is graded on how many threads get closed. The etiquette we all appreciate is not deleting the thread once you get an answer. That's more important than marking as solved.
Topics don't normally self-delete. The lessons stay up where people can find them.Do you know that every I/O pin can be used as a digital pin?But some pins have special capabilities that you can do insanely neat tricks with?
That's all I've got off the top of my head and my typing fingers.