Because the Arduino is executing the pre-installed software called Blink. Congratulations, you’ve now gotten you’re Arduino powered and running the Blink program that is flashing the LED.

This article should acquaint you with basic Arduino programming and show you how to write programs that interact with objects in the real world. (A mandatory disclaimer: the last time I really studied ...

Write a program that changes the brightness intensity of an LED you wire up to "pin 11". How it changes brightness is up to you but it should be hands off. Be aware that pin 11 in the Arduino software ...

Many of us know the basic Blink Arduino sketch, or have coded similar routines on other microcontrollers. Flashing an LED on and off—it doesn’t get much simpler than that. But how big should a ...

An Arduino is a popular open-source single-board microcontroller. Learn how to program one and let the possibilities take shape.