How can I log GPS NMEA strings to a text file?

I have a GPS module (NMEA compliant) connected to a computer via serial (COM) port.

The GPS module is transmitting NMEA strings (as lines of ASCII text) to the computer via a serial COM or virtual COM port:

$GNZDA,180755.000,20,07,2017,,*47
$GPGGA,180755.000,4217.9848,N,07121.0476,W,1,18,0.6,83.6,M,-33.8,M,,0000*5A
$GNRMC,180755.000,A,4217.9848,N,07121.0476,W,0.00,0.03,200717,,,A*61

How can I log the NMEA strings to a text file?

Answer 1

[MathWorks Support Team]

Please refer to the attached MATLAB example file (GPSLogApp.m, requires MATLAB R2017a), which:

• creates a graphical user interface
• shows a list of available serial COM ports
• connects to the GPS module by using the MATLAB Serial functionality
• display GGA message data live
• logs the GPS NMEA strings to a text file