int ledpin=3;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
Serial.println("Led Blinking");
Serial.println("---------------");

pinMode(ledpin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(ledpin, HIGH);
  Serial.print("Led ON");
  delay(1000);
  digitalWrite(ledpin, LOW);
  Serial.println("  Led OFF");
  delay(1000);

}