NMEA GPS class now uses threads to handle parsing NMEA sentences.
Currently only handles GGA, GSV, and GLL types. Added queues for
holding parsed data.
* Parsing thread
* Parse GPS Fix from GGA and GLL
* Parse satellite info from GSV
* Provide a queue for GPS fix data as well as raw sentences
(for debugging)
* Target structures and NMEAGPS class have a __str__() method
which summarizes the objects into a std::string. These are
tied to the __str__ method in python
* Added google unit test for the above functionality
Signed-off-by: Noel Eck <noel.eck@intel.com>
These changes allow NMEA data to be read via I2C on UBLOX compliant
devices that support this capability, such as the LEA-6H based GPS
shield from DFRobot.
It adds a new init() function to the C code, and a new constructor to
the C++ code. It also adds 5 new examples for C, C++, Javascript,
Python, and Java.
Signed-off-by: Jon Trulson <jtrulson@ics.com>
This driver will serve as a generic module for grabbing NMEA data from
various GPS devices via a serial interface. ublox6 will also be
removed in favor of using this driver going forward.
Signed-off-by: Jon Trulson <jtrulson@ics.com>
