Once you are done with writing your project, it is time to build, upload and run it. These three operations can be done by pressing F5.

Press F5 and wait. You will see your project compiling. The output pane will display any errors (if you copied the project as it is, there should be no errors).

The status bar will show you the project building, uploading, and running.

Once the status bar says RUNNING, you may press the button on your device to see it blink "Hello World" in Morse.

For further information about these topics, please see Making, Uploading and Running an Executable Binary and Debugging Your Project below.