 *          Power-on the SD card
 *          Write data
 *          Power-off the SD card
+*        If sleep is enabled (disabled when serial is enabled)
+*          Enter Sleep (low-power mode)
+*          < Will wake up on Interrupt and continue: >
 *      Repeat Loop
 *      
 * Interrupts:

*   1. Setup
*   2. Handle Serial (for start-up configuration)
*   3. Loop
*        Enter Sleep (low-power mode)
*        < Will wake up on Interrupt and continue: >
*        If serial is enabled
*          Handle serial input
*        If four seconds are up

  *   call function Sleep();
  \*****************************************/
  if(/*sleepEnable*/)
    enterSleep();
}
