An Arduino sketch that takes a bearing from a GPS module and determines the course to a preset destination

Description

This is a very simple sketch that takes the current course and location and uses it to display the course to another location on a LED shield. This sketch uses Mikal Hart's excellent TinyGPS library and code from the ArduPilot project for determining the course between two coordinates.

I had initially tried to write my own code for determining the course and had numerous issues which I felt ill-equipped to deal with. In the end it was simpler to avoid re-inventing the wheel and I used the ArduPilot code instead.