The third and current final prototype. Many, many changes were made from the second device. The main difference is the way air is ducted through the unit. This change is discussed further down this page. Other than the air duct, a GPS antenna was added inside the device. This attena is rather weak, however, and an amplifier will be added on top of the device and secured with velcro.
In this image there is a small hole visible above the power supply hole. This hole connects to the Arduino's USB port. This hole was physically cut With a razor blade and is only present in our prototypes.
These two images explain how the new air ovement system works