Android Hardware Interfacing with the BeagleBone Black by Andrew Henderson

By Andrew Henderson

Design and enforce Android apps that interface together with your personal customized circuits and the BeagleBone Black

About This Book

  • Design customized apps that have interaction with the skin international through BeagleBone Black
  • Modify Android to acknowledge, configure, and converse with sensors, LEDs, reminiscence, and more
  • A step by step advisor jam-packed with useful 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 scan with the features of the BeagleBone Black platform, then this publication is perfect for you. you're anticipated to have easy wisdom of constructing Android apps yet no previous adventure is required.

In Detail

This ebook explores utilizing the Android OS at the BeagleBone Black platform and gives an advent to Android's new angle to interfacing. you can be walked throughout the technique of fitting and configuring Android in your BeagleBone Black, in addition to getting ready your computer improvement setting to create Android purposes that without delay interface with units. numerous instance tasks 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 equivalent to sensors, reminiscence chips, switches, and LEDs. step by step information 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 constructing a sophisticated interfacing app. ultimately, you can be supplied with info on transitioning prototype code into code compatible for deployment on an Android-based machine. With numerous instance apps that show key verbal exchange recommendations, this publication can assist you develop into an Android interfacing seasoned in no time.

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On subsequent boots, it will take only 30 to 60 seconds to reach the top-level UI screen. Congratulations! Your BBB is now running the Android OS. Creating your Android microSD card using Linux Under Linux, the compressed Android image can be uncompressed using the xz command and written to the microSD card using the dd command. To prepare an Android microSD card, follow these steps: Make sure that you have xz installed. For systems using apt-get, try installing the xz-utils package: $ sudo apt-get install xz-utils Decompress the image using xz.

Understanding how the BBB interacts with Linux kernel drivers is the key to creating Android apps that can do the same. In this chapter, we will tell you about Android's hardware abstraction layer, or HAL. We will also introduce you to PacktHAL, a special library that you can include within your apps to interface with hardware on the BBB. We assume that you already have Eclipse Android Developer Tools (ADT) with the Android SDK, the Android Native Development Kit (NDK), and the Android Debug Bridge (ADB) tools installed and working on your system.

3 V Future Technology Devices International (FTDI) cable, but it does include the BeagleBone Black itself. 3 volt FTDI cable (product ID 70) allows you to view all of the serial debug output of the BBB. If you are performing any serious development, you must have one of these cables. The cable is necessary if you wish to observe the boot process of the BBB (both bootloader and kernel output as the system is initialized), and it also provides a console shell into Linux and Android. This shell helps you to troubleshoot boot problems, as you will always have a method of interacting with the system when a network connection is unavailable, or when no communication services are up and running.

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