NMEA

Docs and source on GitHub

NMEA currently seems to be the only standard way of communicating GPS data. Lots of GPS module manufacturers have their own, more efficient, interfaces but most/all support NMEA. I tried to make the most of this protocol by optimising:

• Jitter: The presented library aims to split the parsing job up as much as possible. I still wouldn't call the nmea_parse function from an ISR, but... you get the idea.
• Ease of use: Just feed characters straight from your UART port into the nmea_parse function - no need for a buffer.
• Extendability: Because all the fields are processed separately, if you would like to support a currently unsupported sentence, any fields within that sentence that are shared with currently supported sentences can reuse existing code.

12/12/19

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