This chapter was quite Android-heavy, and if you just started working with Android, you might feel somewhat nauseous. I hope we didn't scare you off by practically dumping all that code on you. Even if you didn't have much experience before, we're sure that you're off to a great start now. It's exciting to play around with your embedded server from your phone. Hopefully, you have also had the time to extend the examples that we showed in each chapter, as we're sure you have many ideas on how to build something on your own. In Appendix, Security, Debugging, and I2C and SPI, among other things we will talk about some more complicated hardware integration examples that we will not touch in this book. We will introduce serial port debugging and data transfer basics using the SPI and I2C buses.
We would like to leave you with one more thought. Consider the security aspect seriously. If you are going to add an interface to control the electric appliances of your house, nobody else is responsible...