Summary

In this chapter we introduced some concepts that we will continue to build on in the rest of the book, focusing on the use of variables, including operations and assignments. It is important to remember that variables are only declared once in a particular location, or scope, and that when performing operations or making assignments, whatever value is on the right of the equals (=) sign will be attributed to the variable on the left. Also remember that the operators we discussed in this chapter can be used to increment, decrement, or perform other arithmetic and compound operations, which are performed in a specific order of operations. In the next chapter, we will take this information and use it to alter our program’s flow and learn how the Arduino can make decisions using various control structures, such as the if statement and for loop.