void setup() {
  // put your setup code here, to run once:
pinMode(13,OUTPUT);
attachInterrupt(digitalPinToInterrupt(2),turnonled,HIGH);

}

void loop() {
digitalWrite(13,LOW);
delay (150);
Serial.print( " LED loop state low" );
}

void turnonled()
{
  digitalWrite(13,HIGH);
  delay(1000);
}