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In this video we learn that you should always use variables when programming instead of constants. This allows you to easily modify complicated programs. We start by writing a program the wrong way, and then show the good way using variables.

You can get the kit I am using for this series at the following link:

[Disclosure of Material Connection: I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to This means if you visit the link and purchase the item, I will receive an affiliate commission. Regardless, I only recommend products or services I use personally and believe will add value to my readers.] #Arduino


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