void digitalMonitor( int port )
{
  while(1)
    {
      printf("%d\n", digital(port));
      sleep(.1);
    }
}

void analogMonitor( int port )
{
  while(1)
    {
      printf("%d\n", analog(port));
      sleep(.1);
    }
}

void analogMonitors( int ports[], int length )
{
  int i;

  while(1)
    {
      for( i = 0; i<length; i++ )
	printf("%d %d ",ports[i], analog(ports[i]));
      printf("\n");
      sleep(.1);
    }

}