GPS log file viewer and analyzer with support for GPX, TCX, KML, FIT, IGC, NMEA, SLF, SML, LOC, GPI, GeoJSON and OziExplorer files.

Creating video with telemetry overlay from GPX data

Tool to convert airspace files between different formats: OpenAir, openAIP, KML/KMZ, Polish and Garmin

indoor cycling workout creator. It generates .mrc, .erg, .zwo and .fit files from an specific text input file.

Basic example to explore what is needed to be able to create a service that a garmin watch can connect to.

A tool to create animated MP4 maps from GPX traces

WeMos D1 pro (ESP8266) thingie that reads NMEA signals from a (Garmin) plotter and push them to TCP or UDP listeners. Automatic wifi network creation or (re)join existing wifi. Can also parse AIS in NMEA sentences. Log NMEA and show current and historical values on a web service or as graphs on web pages.

FreeSK8 CSV to Garmin FIT

Native Qt library for Garmin FIT

C Wrapper for Garmin LIDAR Lite for Raspberry Pi

Ardmin is a simple Arduino bike computer. Using a GPS module, this computer can calculate ride statistics, such as average speed, distance travelled, and has a simple "lost" feature to get you back to where you started the ride.

The GARMIN FIT C++ SDK packaged with CMake