Book Image

Android Things Quick Start Guide

By : Raul Portales
5 (1)
Book Image

Android Things Quick Start Guide

5 (1)
By: Raul Portales

Overview of this book

Android Things is the IoT platform made by Google, based on Android. It allows us to build smart devices in a simple and convenient way, leveraging on the Android ecosystem tools and libraries, while letting Google take care of security updates. This book takes you through the basics of IoT and smart devices. It will help you to interact with common IoT device components and learn the underlying protocols. For a simple setup, we will be using Rainbow HAT so that we don't need to do any wiring. In the first chapter, you will learn about the Android Things platform, the design concepts behind it, and how it relates to other IoT frameworks. We will look at the Developer Kits and learn how to install Android Things on them by creating a simple project. Later, we will explore the real power of Android Things, learning how to make a UI, designing and communicating with companion apps in different ways, showcasing a few libraries. We will demonstrate libraries and you will see how powerful the Android Things operating system is.
Table of Contents (10 chapters)

Other usages of GPIO

In many cases, circuits are required to use several digital signals as input or output. In these cases we need to know what they are expecting and handle it appropriately. This usually takes the form of a driver.

In this section we will be exploring briefly some of those cases, such as a DC motor controller that allows us to select the direction of two motors and a stepper motor controller.

We will also take a look at other non standard uses of GPIO that require special handling, such as an ultrasonic distance sensor and an LCD numeric display.

With all these, you will get a general idea of the type of peripherals that can be controlled using GPIO and the different ways they work.

DC motor controller (L298N)

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