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Walkthrough Video
Watch the video for a line-by-line explanation of how the example program works. Then you'll be ready to make some changes of your own!
Challenges
Can you complete the challenges? Change the code in your code editor above. Upload your code to see the effect when you're finished. Complete a challenge? Check it off the list!
Concepts
These are the new code concepts covered in this example program. To become a great coder, read through these concepts to learn new vocabulary.
Quiz
If you're having trouble, try to run an experimental program or look at the example code to help you find the answer.
1. Which syntax ends the entire 'void loop' function?