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Java Marine API is an NMEA 0183 library for Java.
For furher info and latest source code, see project's Github pages.
http://github.com/ktuukkan/marine-api/
libwlocate is a shared library that can be used for location-based services. It checks for WLAN-networks that are available near to a user and retrieves the current geographic position out of them. Thus no GPS is needed for positioning. This WLAN-based geolocation happens without using any of the commercial services that do the same but track the users position and data. libwlocate instead bases on the free OpenWLANMap project.
Plus Codes are like street addresses for people or places that don’t have one. Instead of addresses with street names and numbers, Plus Codes are based on latitude and longitude and displayed as numbers and letters. With a Plus Code, people can receive deliveries, access emergency and social services, or just help other people find them. Plus Codes technology is open source and free to create and use. They are much shorter than traditional global coordinates, so they’re easy to share. Plus...
The aim of this project is to create a full utility suite for NMEA protocols (best known from GPS devices). First goal is a full implemenation of the NMEA 0183 protocol 3.0 (without proprietary extensions).
The library provides parsers for NMEA sentences, gpsd-like network daemons and data generators for simulation and testing.
This allows advanced sensor handling from cellphones/tablets/laptops with GPS up to vehicles/ships with NMEA sensors on board.