I have been collecting NMEA logs
using the VDR plugin, with a view to analysing them for performance when sailing. However not having thought this through properly they all contain periods when I'm motoring. I'd like to remove these with a simple program but I'm not having much luck finding some way of identifying when the engine
is running. One way of doing this would be by examining the the instrument supply voltage as it would be higher when charging
. Is anyone aware of any NMEA
sentence which reports the instrument supply voltage? I haven't been able to find one. Alternatively can anyone think of a smart trick to distinguish sailing data from motoring data? My engine
has no NMEA reporting.
Thanks in advance,