Let's now practice on Serial with a few activities.
What you have seen for now is super important because that's the foundation for any program we will
write in the future of the course.
But still you may be a bit lost and wonder how you're going to apply this to your own project.
Maybe you don't really know how to put this knowledge into a real application and well, don't worry,
because that's exactly what I'm going to focus on from now on.
Apply this knowledge to real applications and improve the code step by step.
First through activities all the way up to the complete intercom project at the end of the course.
All right, enough talking.
Let's just start with the first activity.