Raspberry Pi Satellite Rotator Interface using MacDoppler and GHTracker

An excellent project employing a Raspberry Pi and a touch display to interface software and an az-el rotor controller from the Our Ham Station blog:

Anita, AB1QB got great results using a Raspberry Pi 2 with a Touch Screen for her DX Alarm Clock Project so I decided to do something similar with GHTracker. The new Raspberry Pi 3 Model B boards feature a built-in WiFi networking interface and four USB ports which made the RPi 3 a perfect platform for this project. An email exchange with Jeff at Green Heron Engineering confirmed that GHTracker could be made to run under Linux on the Raspberry Pi (RPi).