// Strobe by Andrew Mock. Copyright (c) 2011 Andrew Mock. All rights reserved. Version 0.1pre
int delayRate = 1;

void setup() {
  pinMode(13, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  if (delayRate < 50) {
   digitalWrite(13, HIGH);
   delay(delayRate);
   digitalWrite(13, LOW);
   delay(delayRate);
   Serial.println(delayRate, DEC);
   delayRate++;
 }

  else {
   delayRate = 1;
 }
}