This is where the “ Serial Monitor” comes in. Kind of a black box and not a very “rich” way of communicating with us humans, now is it? Now with a normal computer we have a keyboard, mouse and monitor to interact with, and as you might have noticed: The Arduino has nothing like that besides a small LED that can blink. If this isn’t your first time of opening the Arduino IDE, start a new project by clicking button “ C” as show in the image below: Since the Arduino IDE is our main tool to work with, a quick tour of this application could make life easier in the near future, so let’s do that. If all went well, you also succeeded in running the test application that made a LED (light) blink. If you followed Part 1, then you should have your computer connected to an Arduino by means of a USB cable, and you should have the Arduino IDE up and running.
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