$baseUrl is not set before using it in weatherstation.php

[nldroid]

$baseUrl is never set but it is used on lines 98-104 in weatherstation.php. The url for the fonts will always be: /fonts/ and the preview doesn't work when you have the php code (and fonts) in a subfolder.

Not sure what the fonts folder needs to be for using it in a real device. Just ordered one and waiting for it to arrive.