Two new sections have been added to the Arduino Programming Course. The course now looks at how to write a function, pass a value to a function and return a value from a function.
These new parts are available on the Starting Electronics website:
Functions and passing a value to a function looks at the structure of a function, how to write a function and how to pass a value to a function.
Returning a value from a function shows how to return a value from a function and uses an example of calculating the area of a circle by passing the radius of the circle to the function.