LCD-14048 Datasheet, PDF (14/33 Pages) SparkFun Electronics – TeensyView Hookup Guide

• TeensyView set to default jumpers (factory)
Choose the example ScreenDemo from the menu, compile and run. You
should see all sorts of graphic demos go by on the screen. (Note: These
can progress at different speeds depending on which Teensy is used.)
Alternately, copy the code from here:
Page 14 of 33