IoT Application Development Based on Java and Raspberry Pi

Raspberry Pi, as a powerful single board computer, has become a very popular choice for prototyping IoT applications in lab environment, industrial projects, and education. Although Raspberry Pi supports many programming languages, Java, a main programing language, has not been used broadly. Current literature does not have sufficient details on how to build applications for Internet of Things (IoT) using Java, JavaFX, and Raspberry Pi as well. This paper introduces the results of studies carried out by the authors for finding out such details. The studies include an application with a JavaFX-based graphical user interface that controls an LED, a Java application that works with a temperature and humility sensor, and a Java application that interacts with Amazon's AWS IoT service. These applications all run on a Raspberry Pi. The main contribution of the paper is that it provides a systematic introduction to the details of the technologies of using Java, JavaFX and Raspberry Pi for developing IoT applications, including an example for the AWS IoT cloud service which has not been reported previously in the literature. The results of the paper are beneficial to developers with Java programming background who plan to develop IoT applications.