The loop function runs as long as the Arduino board is powered and will blink the LED ON and OFF withe 1 second pause between states. You can use another pin, for example pin 12 and then change the ...

This is the code that is making the LED on the board blink. Let’s look at the basic idea of the circuit in use. This is a basic schematic of the LED connected to pin 13.

Open the Arduino software and paste the Arduino code (the text in the box near the bottom of the post) into a new sketch. Click Sketch > Verify / Compile to make sure the code is properly in there.