These LCD's are difficult to use. Indeed there are too many parameters to set and also you have to design the characters to display.

The good thing is that you have flexibility in designing the characters, the bad is that you have to do it!

The good member Richard has done much of the dirty work to use these LCD's and gave us the libraries. But you have to do your part too, especially if you have different LCD. You need to adapt to the dimensions of the screen, design your graphics etc...

Powering up the display may not light any LED's and display nothing. All are software controlled.

I tried an 0.9" LCD and with the support of the Richard managed to display text in various sizes. But I admit I have not fully mastered the beast.

Ioannis