The specified file temporary://filen3pE9o could not be copied, because the destination directory is not properly configured. This may be caused by a problem with file or directory permissions. More information is available in the system log.
A new TemperatureListener interface has been added, as these sensors can take a long time to get a reading (750ms at 12 bit resolution). If you don't want to use the listener interface, you can ask the device instance what it's latest reading was.
