/*
==== Annotated Code ====
Author: Roberto Palozzo
========================
*/

int ledPin = 13;                           // Variable that set the pin no. 13 as output power for LEDs.
String deviceName = "Start-Up + Blink";    // Name given to the code

void setup() 
{
  Serial.begin(115200);                    // Initialize serial communication, so Serial.println can be used.
  pinMode(ledPin, OUTPUT);                 // Configure ledPin as an output, so it can supply power to the LED
  Serial.println(deviceName);              // Start-up message using the deviceName variable
}

void loop() {
  digitalWrite(ledPin, HIGH);              // Turn ON the LED
  Serial.println("LED: ON");               // Matches the LED turning on
  delay(1000);                             // Keep the LED ON for 1000 ms or 1 second
  digitalWrite(ledPin, LOW);               // Turn OFF the LED
  Serial.println("LED: OFF");              // Matches the LED turning off 
  delay(1000);                             // Keep the LED OFF for 1000 ms or 1 second
}