# lat and lon values in the $GPRMC nmea sentences come in an rather uncommon format. # convert the Python datetime into your preferred string format, see for futher possibilitiesĭate_and_time = date_and_time.strftime('%y-%m-%d %H:%M:%S.%f') # cuts off the last three characters (trailing zeros from the fractional seconds)
# merge the time and date columns into one Python datetime object (usually more convenient than having both separately)ĭate_and_time = datetime.strptime(date + ' ' + time, '%d%m%y %H%M%S.%f') # if the "warning" value is "V" (void), you may want to skip it since this is an indicator for an incomplete data row) # columns that are not used contain technical GPS stuff that you are probably not interested in # for each row, fetch the values from the row's columns # skip all lines that do not start with $GPRMC # iterate over all the rows in the nmea file Writer = csv.writer(output_file, delimiter=',', lineterminator='\n') # create a csv writer object for the output file # create a csv reader object from the input file (nmea files are basically csv) With open(OUTPUT_FILENAME, 'wt') as output_file: With open(INPUT_FILENAME, 'r') as input_file: py file, adapt the INPUT_FILENAME and OUTPUT_FILENAME variables at the top of it to your needs, then just run Python filename.py in a console.
Gpsbabel short gsa sentence code#
In order to run this script, save the code in a. See inline comments for further explanation. However, it should not be too difficult to adapt the example to something else, otherwise just ask. Since I don't know what exact information you need (some of the sentences store really complicated stuff regarding the GPS signal), in the following I went for values for date, time, lat, lon, speed. Hence, it is most often enough to evaluate all lines of only one of the sentences that holds the information that you are interested in. As one can see from your sample, the nmea format basically already is csv but values might occur in rather uncommon formats and different nmea sentences (the one starting with $) often store the same information simply in a different format until the next new piece of information occurs.
Gpsbabel short gsa sentence update#
Thanks for your update with some sample data. What can I do to include other information (like the timestamp) as well in the converted csv file?Įdit: Here's the first 11 lines of my sample data, GPS_20160204_092027.log $ADVER,3080,2.2 I get a csv file with only latitude and longitude, but was hoping to get many other information stored in the original. I tried to convert a file in NMEA to csv using gpsbabel, $ gpsbabel -i nmea -f GPS_20160204_092027.log -o csv -F GPS_20160204_092027.csv
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