/*
Title: Extermal_interrupt_INT0.ino but a true C program
Author: Florin Dragan	florind@mas.utcluj.ro
Date Created: 01-10-2017
Last Modified: 01-11-2017

Purpose: This is an example how to configure the Atmega328P (AVR) to lit a LED
on PORTB bit 5, connected to digital pin 13 (D13 on Arduino Uno and Nano).
*/