This example works well with the Sparkfun 16x2 Serial (3 wire TX/RX/GND) Display. The biggest tricks are:
1: knowing to connect TX to RX from the Controller CCA to the display. (some equipment does not follow that standard)
2: The device suggested it works by default at 9600 BPS, I found using 19200BPS to work nicely.
3: finding out that the MicroControllers ports for TX and RX are not called Serial in the library, but are instead called Serial1.