In the following figure, we're integrating important parts of the book. We will show the connections in a house using a relay, and how you will apply and control the real load using a lamp:
In real life, we will see the devices connected and controlling the real world. In the following image, we can see the relay module that can control the loads with the electronics part:
The following image shows the final circuit. We see the real connections to the Arduino board, and how they control the real world.
