In this chapter, we built a device that allows us to track the GPS location of any object it is attached to. We built two projects based on the same hardware: one that sends SMS messages to your phone with the location of the device, and another one where you can see the current location of the device on a map.
There are of course many ways to improve this project. You can, for example, add sensors to the project and monitor them as well from the Freeboard dashboard, just as we did in the previous project. One useful thing is also to make the project autonomous, and for this, you can simply power the Arduino board directly from the FONA shield, as it has a 5V output.
In the final chapter of the book, we are going to build another cool application for secret agents: a small mobile surveillance robot.
