// LED demo on MicroBoard

#define DELAY 100

main()
{
   int   i;

   loop {
      for(i=0; i < 20; i++) {
         toggle(i);
         delay(DELAY);  
      }
      for(i=19; i >=0; i--) {
         toggle(i);
         delay(DELAY);  
      }
   }
}