This instruction is executed only one time. Next is the loop function that sets the pin 13 HIGH (+5V on pin 13), waits a second (1000 ms), then turns OFF the LED (0V on pin 13) and waits another ...

In this article I will add some simple Arduino LED projects starting with basic ones like how to turn on an LED, blinking, and more. Every step will have the code, the schematic, photos of the project ...

Home » Feature Story » Apps » Blinking an LED with the Arduino IDE. ... Open the LED blink example sketch: File > Examples > 1.Basics > Blink. You should see a window like in Figure 2. 3.