This is tutorial number 1 from our series of Arduino ... board or using an external LED to blink. The board has an LED connected at digital pin 13 that turns ON when the pin is set HIGH and turns OFF ...

It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of ...

As a perfect example, these LED “blinking eyes” were created by [Will Moser]. Using nothing more exotic than some bare LEDs, an Arduino ... hardware side of this project is very simple.

If you're looking for a fun electronics project ... blinking eyes setup where several sets of colored eyes blink randomly by constructing LED eyeballs, an ATtiny85 microcontroller, and an Arduino.