Understanding HIGH and LOW Arduino Pin States
Learn Programming and Electronics with Arduino - A podcast by Programming Electronics Academy
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If you are just getting started with Arduino, you might be wondering what the heck all this HIGH and LOW stuff everyone is talking about really means. At first I just figured everyone using micro-controllers was just on some type of emotional roller-coaster, until I began to realize that HIGH and LOW are actually abstractions. But let us not talk in abstractions - let us talk in concrete numbers and get down to the bottom of what HIGH and LOW actually mean. This Tutorial Will Include: What the heck is a PIN state? What are the values for Arduino Pin States? Practical Application: What do we see in practice?
