push
Reads the input NMEA data creating a NmeaLocation. The NMEA location data source needs to be started before calling this method. When pushing data:
Each sentence needs to begins with a '$'
Each sentence needs to end with carriage return/line feed sequence
Single or multiple sentences can be pushed at one time, all strings in the buffer will be parsed
There is no explicit limit on the amount of data that can pushed at one time
If a partial sentences are pushed the data source accumulates (and concatenates) the pushed data until a carriage return/line feed sequence is reached
The data source parses these messages types: GGA, GSA, GST, GSV, RMC, VTG
Each sentence's checksum is validated
Unknown/bad/incorrect sentences are ignored (they do not produce any location, satellite updates etc.)
Sentences support up to 256 characters (this is beyond the NMEA spec's 82 character limit to support receiver's that output longer sentences)
Messages should be of the form: "$XXYYY,data*checksum\r\n"
Example:
$GPGGA,092750.000,5321.6802,N,00630.3372,W,1,8,1.03,61.7,M,55.2,M,,*76
$GPGSA,A,3,10,07,05,02,29,04,08,13,,,,,1.72,1.03,1.38*0A
$GPGSV,3,1,11,10,63,137,17,07,61,098,15,05,59,290,20,08,54,157,30*70
See [https://www.nmea.org/] for more information on the NMEA standard.
Since
200.1.0