To make the discussion more general and overcome the issue of specific hardware platforms, I use virtual hardware platforms to demonstrate the work at the Android system level.

Before this book, I made an attempt to use a virtual hardware platform to explain how we can learn embedded system programming using an Android emulator in my previous book, Embedded Programming with Android. It seems many readers liked the idea, because they can explore the code examples much more easily on a virtual hardware platform that is available for everyone.