This is tutorial number 1 from our series of Arduino tutorials and in this part I will talk about blinking an LED using the one already available on the Arduino Uno board or using an external LED to ...

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.

We’ve all blinked an LED. Maybe it was just to test a microcontroller, like the simplest Arduino example . Or we’ve been a tad more old school and used the classic 555 to do it.