In this chapter, a discussion on the theory and operation of a talking logic probe was covered. A basic talking logic probe design was shown along with assembly and testing instructions for building the speech synthesis electrical tester. Finally, technical details of how the EMIC 2 text-to-speech module operates were discussed using a series of hands-on experiments. The experiments showed how to set specific EMIC 2 DecTalk speech synthesizer engine feature/functions using Arduino code programming techniques.

In the next chapter, a hands-on investigation on using a web page as a Human Machine Interface (HMI) controller will be illustrated. As in the previous chapters, a series of lab experiments, followed by a final project will show how to build an Arduino-based HMI controller.