node-nmea

Decoder for NMEA Sentences.

NMEA Sentences supported

• RMC

Install

$ npm install nmea-decoder --save

Usage

const nmea = require('nmea-decoder');
 
// Decode RMC Sentence
let result = nmea.gprmc('$GPRMC,180605.0,A,2905.099584,N,11058.190134,W,0.0,,161216,0.0,E,A*34');
 
// output
//
// {
//   timestamp: 180605,
//   status: 'A',
//   latitude: 29.084993066666666,
//   ns: 'N',
//   longitude: -110.96983556666666,
//   ew: 'W',
//   speed: 0,
//   datestamp: 161216,
//   variation: 0,
//   vew: 'E',
//   checksum: '34'
// }

Type Definitions

RMC

• timestamp (number) : UTC of position fix.
• status (string) : Data status (A=ok, V=invalid).
• latitude (number) : Current latitude.
• ns (string) : n=North, s=South.
• longitude (number) : Current longitude.
• ew (string) : e=East, w=West.
• speed (number) : Speed over ground in knots.
• trueCourse (number) : Track made good in degrees True.
• datestamp (number) : UT Date.
• variation (number) : Magnetic variation degrees (Easterly var. subtracts from true course).
• vew (string) : e=East, w=West.
• checksum (string) : Checksum.

Test

$ npm test

Reference

http://aprs.gids.nl/nmea

Licence

MIT