1.5 Moving On
Connect your Arduino to the computer with the USB cable. You do not need the battery for now.
The green PWR LED will light. If there was already a program burned into the Arduino, it will
run.
Start the Arduino development environment. In Arduino-speak, programs are called “sketches”,
but here we will just call them programs.
In the editing window that comes up, enter the following program, paying attention to where
semi-colons appear at the end of command lines.