Arduino Programming --LED Blink

   

      Here we are going to make a program on LED blinking, This is the most simple program that we can test at the beginner stage ,

Pin 13 has an LED connected on most Arduino boards.we can change this on changing the pin no to any pin as we like

PROGRAM

// Pin 13 has an LED connected on most Arduino boards. // give it a name: int led = 13; // the setup routine runs once when you press reset: void setup() { // initialize the digital pin as an output. pinMode(led, OUTPUT); } // the loop routine runs over and over again forever: void loop() { digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(led, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }