   ledPin.toggle();
   basement.convert_request();
   outdoors.read_scratchpad();
-  print_temperature_P(PSTR(", outdoors = "), &outdoors);
+  print_temperature_P(PSTR(", outdoors = "), outdoors);
   ledPin.toggle();
   SLEEP(1);
 

OutputPin ledPin(Board::LED);

// Print the current temperature reading
void print_temperature_P(const char* prefix, DS18B20* thermometer)
{
  FixedPoint temp(thermometer->get_temperature(), 4);
  int16_t integer = temp.get_integer();
  uint16_t fraction = temp.get_fraction(4);
  trace << prefix << integer << '.';

  ledPin.toggle();
  outdoors.convert_request();
  indoors.read_scratchpad();
  print_temperature_P(PSTR("indoors = "), indoors);
  ledPin.toggle();
  SLEEP(1);

