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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

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Cantilever

Member Since: March 24, 2008

Country: United States

  • The checksum is a simple calculation that you can do with the help of Google:
    Try this Web App: http://www.hhhh.org/wiml/proj/nmeaxor.html
    BTW, I don’t think appending the checksum is necessary. Try it without if you want, especially if your doing the setup manually.

  • i’ve just recently started prototyping with this gps unit, so thanks to everyone who has posted information.
    just so others know, the default for my unit was 57600bps, 5hz output. I was able to lower the baud rate to 4800 only after I reduced the output to 1hz.
    Does anyone know what the best setting for DGPS_Mode should be, or at least what it depends on? If RTCM, how does RTCM baud rate fit in? (or are they unrelated)
    Also, I am a bit unsure of what “API_Set_Flash_User_Option” does. Is it used to set the default settings, so a reset to default using “$PMTK104*37” would reset to the settings I set with “API_Set_Flash_User_Option”

No public wish lists :(