I need some expert advice. I'm using an Arduino Leonardo, which I have got working with a Nokia 3310 monochrome screen. I wrote some code to draw any graphics to the screen.
What I want to know is, can I buy a chip from somewhere that will offload most of the CPU usage (for graphics from the Leonardo) that draws numbers and letters to the screen and basic graphics (different types of polygons and lines)? So I'm looking for a chip designed to do the graphical work and a data sheet reference for the chip.