#include <FadeLed.h>



int light = 0;
FadeLed built_in(13);
unsigned long previousMillis = 0;
const long interval = 1000; 
void setup() {
  // put your setup code here, to run once:
  built_in.setTime(0);
}

void loop() {
  // put your main code here, to run repeatedly:
  FadeLed::update();
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval){
    previousMillis = currentMillis;
    if (light){
      built_in.on();
      light = 0;
    }else{
      built_in.off();
      light = 1;
    }
  }
}