In this chapter, we are going to tackle another very common project in any home automation project: controlling lights. There are many devices that you can buy off the shelves that will give you the ability to control devices in your home, but these devices usually have a high price point. And even if they are wireless, they usually come with a remote control.
In this project, we are going to take another approach and control lights directly from your computer, phone, or tablet, all via Wi-Fi. The following will be the major takeaways from this chapter:
First, we are going to build the hardware part of our project by connecting a Wi-Fi chip to Arduino and the device we want to control (here, a simple lamp) to a relay module. We'll actually use two relay modules in this project, but this can, of course, be extended to any number you want.
Then, we are going to write some basic code to test the different parts of the project. We will check that...