Until this point, we have had just text on our LCD. However, we have a graphical
LCD so it is time for us to draw some pictures on it. First, we will draw
some static graphics (where we draw out what we want it to look like ahead of
time). Then we will have the Arduino decide what to draw based off of input.
But before we can get to drawing, we’ll need to take a quick detour to explain
some details that will be necessary to send graphics to the display.