// PROGRAM DESCRIPTION VIDEO AT http://www.youtube.com/@himanshusingheducationist7700
// ARDUINO UNO MICROCONTROLLER BASED PROGRAMS
// FOR O LEVEL COURSE BY NIELIT
// Internet of Things and Its Applications M1-R5
// PROGRAM BY HIMANSHU SINGH
// PROGRAM :1

// Write a program to Blink default Light Emitting Diode(LED) on Arduino board with thedelay of 2 sec

const int LED_PIN=13;
// LED ANODE(+) LONGER LEG WILL BE CONNECTED TO DIGITAL PIN 13 OF ARDUINO UNO
// LED CATHODE (-) SHORTER LEG WILL BE CONNECTED TO ANY GND PIN OF ARDUINO UNO
void setup() 
{
pinMode(LED_PIN, OUTPUT);
}
void loop() 
{
digitalWrite(LED_PIN, HIGH);
delay(2000);
digitalWrite(LED_PIN, LOW);
delay(2000);
}