5.1.4. Mobile application. We developed the mobile application in Java under the Android Studio 6.0 programming environment. The mobile application has a Model-ViewController (MVC) architecture. It runs only on smartphones and tablets with Android. This application stores the sensors data and the global position of the truck in a local database, synchronize every ten minutes the data with a remote SQL database in the aquaculture company office through a GSM 3G service, and provide a real-time visualization screen that shows the data (see Figure 3).