Chapter 6. More Output Devices
In this chapter, we will cover the following topics:
- Creating sound
- Transistor driver
- Relay driver
- Optocouplers/Optoisolators
- More outputs – shift registers
Introduction
In this chapter, we will look over some more general applications of Arduino outputs. Sometimes, we don't have enough digital pins for our project, but we can extend that using shift registers! Also, we can try making some music by just adding a speaker. But what if we need to connect an AC circuit to the Arduino? All the answers, and more, can be found in this chapter.
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