void setup()
{
  Serial.begin(9600);
  Serial.println("Initialising...");
  delay(100); //Allow for serial print to complete.

  pinMode(LED_PIN,OUTPUT);

  /*** Setup the WDT ***/

  /* Clear the reset flag. */
  MCUSR &= ~(1<<WDRF);

  /* In order to change WDE or the prescaler, we need to
   * set WDCE (This will allow updates for 4 clock cycles).
   */
  WDTCSR |= (1<<WDCE) | (1<<WDE);

  /* set new watchdog timeout prescaler value */
  WDTCSR = 1<<WDP0 | 1<<WDP3; /* 8.0 seconds */

  /* Enable the WD interrupt (note no reset). */
  WDTCSR |= _BV(WDIE);

  Serial.println("Initialisation complete.");
  delay(100); //Allow for serial print to complete.
}