Lesson 3 – Hello World From Arduino C,C++ Coding
In this lesson I will show you how to write a your first C program in Arduino Mega. It is a programming tradition to write a "hello world" program whenever starting to learn a new programming language.
The "hello world" program simply writes the text "Hello, world!" to the screen. The purpose of this program is to verify that your programming environment is properly installed and working. If your "hello world" program works, then you are ready to start learning the new programming language.
The Arduino doesn't have a screen to write the "hello world" text to, but we can use the USB port and serial monitor window.