Variable Scope: Arduino Course 4.5

This lesson covers the importance of using variables in Arduino sketches, focusing on declaring, initializing, and using variables to replace hard-coded values. It explains variable scope, emphasizing the benefits of limiting scope to improve code efficiency and readability. The lesson concludes with a review of key concepts.

What is the role of the assignment operator in variable initialization?

What happens if a variable is declared outside of any block of code?

Why should you limit the scope of your variables?

How can using global variables affect memory usage in a program?