/*	Blink a LED
 *
 *  Turns an LED on for one second, then off 
 *  for one second, repeatedly.
 * 
 *  Author: André Sarmento 
 *  Date: Sep 2022
 *  Website: io42.org 
 */

const int pinLED = 4;
  
void setup() {
  pinMode(pinLED, OUTPUT);
}

void loop() {
  digitalWrite(pinLED, HIGH);
  delay(1000); // Wait for 1 second
  digitalWrite(pinLED, LOW);
  delay(1000); // Wait for 1 second
}