How to Use Functions in Arduino Programs - Ultimate Guide to the Arduino #18

Functions are the code in your program that get things done. They can be used to get data from a sensor, set pin voltages, print text to LCD displays, and so much more. Learn all about how to use functions on the Arduino with this in-depth tutorial!
This is tutorial #18 in the Ultimate Guide to the Arduino, a complete video course on the Arduino microcontroller with 45 lessons that are designed to teach anyone how to master the Arduino at any skill level. Visit our UA-cam channel page to watch the entire series!
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[@raniekunani653]

Works like a charm...! One of the best tutorial i've seen in youtube.
for a guy like me who's just getting started in arduino,you have my "thanks".

[@Norige]

If you want the function to return/output something,
write the datatype (like "int") instead of void
and use "return dataToOutput;".

[@hetori9918]

Compilation error: 'blinkLED' was not declared in this scope

[@Billy-No-Mates-ol8nx]

At 1:37, this statement is incorrect. A function does NOT need an input nor does it need to return an output! You can call a function just to DO something.

[@pauldusa]

Me 10 years working the Arduino