[time-nuts] Most popular NMEA sentence with date and time?
Hal Murray
hmurray at megapathdsl.net
Mon Jul 22 20:50:01 UTC 2019
> I haven't looked at the NMEA docs in a while or three.. What's the most
> widely supported sentence(s) that will give me date and time?
GPRMC is the common one. The RMC is Recommended Minimum something-or-other.
>From the NTP driver:
* $GPRMC,hhmmss,a,fddmm.xx,n,dddmmm.xx,w,zz.z,yyy.,ddmmyy,dd,v*CC
Note that it only has 2 digits of year.
The "a" is A for OK and V for not tracking. Or the reverse, I never remember.
NMEA charges big $$ for their official version of the specs. The docs for the
chip you are using should have enough info.
--
These are my opinions. I hate spam.
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