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  • #11554
    ATXBALLOON
    Participant

    I'm wonding if I have a defective unit.  When I query the BMP180, I get wildly incorrect Temp and a negative pressure.  When I connect a standalone BMP180 to the same Pi and run the same code I get correct readings.

    Also the GPS reports $GNTXT,01,01,01,NMEA unknown msg*46 over and over with no fix.  (I haven't been outside to test with a clear sky, though)

    I've ordered a second unit to test with, but I'd like your input.

    Thanks!

     

    #11564
    PeterP
    Participant

    Our current boards use the BMP280. Try this code for this.

     

    For the unknown message, this is the GPS telling you that it is receiving data on the serial port, but it doesn't recognize it, so it spits out "unknown msg"

    Doublecheck that you have disabled the console on the serial port. If this is disabled, you can try and disable echo on the serial port

    stty -F /dev/ttyACM0 -echo

     

    Peter --OzzMaker.com --

    #11647
    ATXBALLOON
    Participant

    Both of those suggestions did the trick, thank you.

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