Book Image

Raspberry Pi 3 Projects for Java Programmers

By : Rajdeep Chandra, John Sirach, Pradeeka Seneviratne
Book Image

Raspberry Pi 3 Projects for Java Programmers

By: Rajdeep Chandra, John Sirach, Pradeeka Seneviratne

Overview of this book

Raspberry Pi is a small, low cost and yet very powerful development platform. It is used to interact with attached electronics by the use of it's GPIO pins for multiple use cases, mainly Home Automation and Robotics. Our book is a project-based guide that will show you how to utilize the Raspberry Pi's GPIO with Java and how you can leverage this utilization with your knowledge of Java. You will start with installing and setting up the necessary hardware to create a seamless development platform. You will then straightaway start by building a project that will utilize light for presence detection. Next, you will program the application, capable of handling real time data using MQTT and utilize RPC to publish data to adafruit.io. Further, you will build a wireless robot on top of the zuma chassis with the Raspberry Pi as the main controller. Lastly, you will end the book with advanced projects that will help you to create a multi-purpose IoT controller along with building a security camera that will perform image capture and recognize faces with the help of notifications. By the end of the book, you will be able to build your own real world usable projects not limited to Home Automation, IoT and/or Robotics utilizing logic, user and web interfaces.
Table of Contents (8 chapters)
4
Integrating a Real-Time IoT Dashboard

Writing your first Java web application

The servlet you will be writing to control the Raspberry Pi's GPIO pin through the internet or any local area network requires a series of configurations to build and test in the Windows environment. Then you will deploy the project to the Raspberry Pi manually and run it on the Jetty server.

Creating a Maven project from Archetype

  1. Open the NetBeans IDE and from the menu bar, click on File | New Project. The New Project wizard will appear.
  2. In Choose Project (step 1), select Maven under Categoriesand Project from Archetype under Projects,as shown in Figure 6-4.
  3. Then, click the Next button to proceed:
Figure 6-4: Choose project
  1. In Maven Archetype (step 2), select maven-archetype-webapp under Known Archetypes, as shown...