Arduino Blink Program with in-built LED

Here we’ll be using C++ programming language to program the Arduino module.

//Programming Arduino in-built LEd
 /*13 pin is the LED present in Arduino Board.
  * You can define any other digital pin as well i.e 12,11,9,8 etc
  * 
  * 
  */
// put your one time setup code here, to run once
void setup() {
  Serial.begin(9600);
  pinMode(13,OUTPUT);
}
 // put your main code here, to run repeatedly
void loop() {
  Serial.println("Digital pin going high");
  digitalWrite(13,HIGH);
  delay(1000);
  Serial.println("Digital pin going low");
  digitalWrite(13,LOW);
  delay(1000);
  

}

setup(): Setup function execute only once, which should contain code that should be executed only once.

Loop(): Loop function will be executed iteratively as long as the arudino runs.

Serial.begin(Baud rate): Here it specify the baud rate (the speed at which the information as bits transferred from arduino to connected device , here computer).

Baud rate can be specified as 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, or 115200.

Serial.println: It prints the message on Serial Monitor.

digitalWrite(pin,HIGH/LOW): It takes two parameter, first parameter take the digital pin number, second parameter bring the pin to High/Low.

delay(millisec):It pause the arduino execution for specified milliseconds.