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 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)
Integrating a Real-Time IoT Dashboard

The Zumo chassis kit

The Pololu Zumo chassis is a small, tracked robot platform, less than 10 cm on each side. It allows you to build custom robotic applications by connecting a variety of Micro Metal Gear motors to get a combination of torque and speed. The Zumo chassis can be purchased as a kit to build our Raspberry Pi wireless controlled robot.

The Zumo Chassis Kit contains the following mechanical components, shown in Figure 5-1:

  • Zumo chassis main body
  • 1/16″ black acrylic mounting plate
  • Two drive sprockets
  • Two idler sprockets
  • Two 22-tooth silicone tracks
  • Two shoulder bolts with washers and M3 nuts
  • Four 1/4″ #2-56 screws and nuts
  • Battery terminals
Figure 5-1: Zumo chassis kit components. Image credits: Courtesy of Plololu (

Assembling Zumo chassis