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R2.04 · School project

GPS NMEA frame
analyzer

©C
$_Shell
mkMakefile
</> View code ▶ Watch the test
The project

Built as part of a SAÉ (Learning and Assessment Situation), this project implements a GPS NMEA frame parser in C. It reads frames from a GPS receiver, checks their integrity via checksum, then extracts and formats the position and time data contained in the $GPRMC and $GPGGA formats.

Features
  • Validation of NMEA frames (checksum, format)
  • Extraction and decoding of fields from $GPRMC and $GPGGA frames
  • Conversion of GPS coordinates from NMEA format (degrees-minutes) to decimal degrees
  • Formatting and display of UTC time
Tech stack
©C
$_Shell
mkMakefile
Demo

Demo of the GPS NMEA parser in action: reading frames, checking checksums and extracting position and time data.

What the video shows
  • Reading GPS NMEA frames from an input file.
  • Checksum verification for each received frame.
  • Extraction of position fields from $GPRMC and $GPGGA frames.
  • Conversion of coordinates from degrees-minutes format to decimal degrees.
  • Formatted display of UTC time extracted from the frames.