"If you want to find the secrets of the universe, think in terms of energy, frequency and vibration."
- Nikola Tesla
So far, we have been working with DC powered devices. This chapter of the crash-course book will introduce us to the fundamentals of interfacing and controlling AC powered electrical devices with the Arduino platform.
This topic was specifically chosen for a wholesome completeness of the ten-day crash-course challenge that the book offered and you bravely undertook. We have surely come a long way since blinking that LED on the first day!
You will learn the following topics in this chapter:
- The concept of separating a DC circuit and AC circuit by using a relay module
- Understanding parts of a relay module
- Interfacing a relay module with the Arduino
- Interfacing a sound detector sensor with Arduino
