How to Blink an LED: Arduino Course for Absolute BeginnersBy Robolab Technologies In Arduino, Atal Tinkering Labs ATL, More Info
The first program you usually write when learning a new programming language is called “Hello World”. The program outputs those words as its only function. When learning to program microcontrollers such as the Arduino, the equivalent of “Hello World” is a program that blinks an LED. Guess what it is called – Blink.