By Andrew Henderson
Design and enforce Android apps that interface along with your personal customized circuits and the BeagleBone Black
About This Book
- Design customized apps that engage with the surface global through BeagleBone Black
- Modify Android to acknowledge, configure, and speak with sensors, LEDs, reminiscence, and more
- A step by step advisor choked with functional Android app examples that would aid the clients to create Android managed units that might use BeagleBone as hardware
Who This booklet Is For
If you're an Android app developer who desires to test with the services of the BeagleBone Black platform, then this e-book is perfect for you. you're anticipated to have simple wisdom of constructing Android apps yet no previous adventure is required.
This booklet explores utilizing the Android OS at the BeagleBone Black platform and offers an advent to Android's special approach to interfacing. you can be walked during the means of fitting and configuring Android in your BeagleBone Black, in addition to getting ready your notebook improvement surroundings to create Android purposes that at once interface with units. numerous instance tasks inside of this e-book introduce you to utilizing the GPIO, SPI, and I2C interfaces of the BeagleBone Black.
You'll create Android apps that converse without delay with genuine elements equivalent to sensors, reminiscence chips, switches, and LEDs. step by step counsel via either the software program and parts of those tasks is equipped. Combining all the prior initiatives right into a unmarried undertaking that makes use of GPIO, SPI, and I2C jointly, you'll discover the main points of making a complicated interfacing app. ultimately, you can be supplied with details on transitioning prototype code into code compatible for deployment on an Android-based equipment. With various instance apps that display key communique innovations, this publication may help you develop into an Android interfacing seasoned in no time.
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Extra info for Android Hardware Interfacing with the BeagleBone Black
As most laptops and desktop PCs don't directly accept microSD cards, you should own at least one microSD-to-SD card adapter. Luckily, one of these adapters is typically packaged with each microSD card that you buy. Learning about the hardware you'll interface with The best way to learn about interfacing Android software with hardware is to learn while having real hardware components connected to your BBB. This way, your software will talk to actual hardware and you can directly observe how your apps respond to physical interaction with your system.
Chapter 2, Interfacing with Android, introduces you to several aspects of the BeagleBone Black's hardware and Android's Hardware Abstraction Layer. It describes how to make a few modifications to both your development environment and Android installed on your BeagleBone Black to allow Android apps to access the various hardware features of the BeagleBone Black. Chapter 3, Handling Inputs and Outputs with GPIOs, guides you through building your very first hardware interfacing circuit and explains the details of a basic Android app that can communicate with it.
While managers respond to these Java methods, they must eventually use the Java native interface (JNI) to call the native code that directly interacts with the hardware. This is where the true control of the hardware takes place. The bridge between the Android API and calls to the native code that control the hardware is known as the hardware abstraction layer (HAL). The various pieces of the HAL are typically written in C/C++, and each device's vendor is responsible for implementing them. If some pieces of the HAL are missing, services and apps won't be able to fully utilize all aspects of the hardware platform.