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 ...

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.

You could put the Arduino in deep sleep, if you wanted to and that LED will still blink. With a little work, you could probably adapt this idea to any number of circuits out of the 555 playbook ...

Uploading the Arduino LED Blink Code. Now, let’s upload our first program to the Arduino board through the Arduino IDE that we just downloaded. The Arduino IDE when installed comes with some example ...