-#
-# my $h = DWeather::Serial->new("/dev/ttyXXX", 19200 [,cs7] [,odd] [,rtscts]);
-#
-# all parameters are optional
-#
-# you are expected to add AE callbacks as required, all this module
-# does is create the AE::Handle and associates an IO::File handle with it
-#
-# default is /dev/ttyS0, 9600 8N1 no handshaking
-#
-# the tty is set to raw mode.
-#
-# returns a subclassed AE::Handle
-#