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, and a cardboard box, these little gadgets can quickly ...

The most beginner-friendly sketch here is the "Blink," which simply makes an LED blink. You won't need ... through projects that only use an Arduino UNO. Another great resource for finding Arduino ...