The Arduino software environment, including the IDE, libraries, and general approach, are geared toward education. It’s meant as a way to introduce embedded development to newbies. This is a … ...

Stop telling Arduino users that they are coding, it encourages a culture of writing crappy C++ code. There IS a right way and a wrong way and Arduino doesn’t do anything to help show the difference.

Open the Arduino software and paste the Arduino code (the text in the box near the bottom of the post) into a new sketch. Click Sketch > Verify / Compile to make sure the code is properly in there.