#include <TimedAction.h>

//this initializes a TimedAction class that will change the state of an LED every second.
TimedAction timedAction = TimedAction(1000,blink);

//pin / state variables
#define ledPin 13
boolean ledState = false;


void setup(){
  pinMode(ledPin,OUTPUT);
  digitalWrite(ledPin,ledState);
}

void loop(){
  timedAction.check();
}

void blink(){
  ledState ? ledState=false : ledState=true;
  digitalWrite(ledPin,ledState);
}