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 have interaction with the surface global through BeagleBone Black
  • Modify Android to acknowledge, configure, and converse 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 would use BeagleBone as hardware

Who This publication Is For

If you're an Android app developer who desires to test with the services of the BeagleBone Black platform, then this ebook is perfect for you. you're anticipated to have simple wisdom of constructing Android apps yet no earlier adventure is required.

In Detail

This e-book explores utilizing the Android OS at the BeagleBone Black platform and gives an creation to Android's special approach to interfacing. you can be walked during the strategy of fitting and configuring Android in your BeagleBone Black, in addition to getting ready your computing device improvement surroundings to create Android purposes that at once interface with units. a number of instance initiatives inside this e-book introduce you to utilizing the GPIO, SPI, and I2C interfaces of the BeagleBone Black.

You'll create Android apps that speak without delay with real elements corresponding to sensors, reminiscence chips, switches, and LEDs. step by step information via either the software program and parts of those tasks is supplied. Combining all the earlier initiatives right into a unmarried venture that makes use of GPIO, SPI, and I2C jointly, you'll discover the main points of making a sophisticated interfacing app. eventually, you will be supplied with info on transitioning prototype code into code appropriate for deployment on an Android-based machine. With a number of instance apps that reveal key communique strategies, this e-book can assist you develop into an Android interfacing seasoned in no time.

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Extra resources for Android Hardware Interfacing with the BeagleBone Black

Sample text

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.

Your Windows NDK installation now has the extra header file that it needs to build PacktHAL. Multiplexing the BBB pins As accessing hardware resources follows the same process under Android as it does under Linux, it is important to understand how the Linux kernel configures device drivers and allocates them to particular pieces of hardware. It is also necessary to understand how these kernel drivers provide user space interfaces that PacktHAL can interact with. The BBB's AM3359 processor offers a wide variety of signals on its hundreds of pins.

Eventually, you might find yourself integrating PacktHAL into your own custom managers. You might even find yourself developing custom code for the actual kernel! com/support). This is a compressed tar file that contains all of the source code and configuration files required to modify BBBAndroid to use PacktHAL and include PacktHAL support in your apps. tgz file, you must decompress and untar it. tgz to your home directory after downloading it and will decompress it from there. We will refer to your home directory as $HOME.

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