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 KZbin 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".

[@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.

[@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

[@pauldusa]

Me 10 years working the Arduino