Altitude 

You have always been fascinated by the seas and the ships. You have always wanted to know more about them. Know all about the seas and ships and know it best. Hear from the TALKING MARITIME ENCYCLOPEDIA.

HS GPS is a software library (with full C source code) which provides access to a NMEA-183 compliant GPS receiver via a serial communications port, decoding NMEA sentences: $GPGGA, $GPGSA, $GPGSV, $GPGLL, $GPRMC and $GPVTG. Decoded parameters include......

 Altitude