Sensors, Electronics and Prototyping

UM7 with external GPS

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  • #1135
    Andrey
    Guest

    Hello!
    I am trying to connect external GPS sensor to UM7.
    UM7 pinout
    I connect TX2 from IO Expansion Header to PPS from GPS sensor,
    RX2 from IO Expansion Header toTX from GPS sensor
    I set the same baud rate transmit and receive in UM7 and GPS sensor (115200/115200).
    Messages from GPS sensors have the following form:
    $GPGGA,153547.00,5620.9032,N,04118.9628,E,1,03,6.0,00064.0,M,0010.1,M,,*6A
    $GPGLL,5620.9032,N,04118.9628,E,153547.00,A,A*68
    $GPGSA,A,2,13,05,70,,,,,,,,,,7.9,6.0,5.1*3F
    $GPGSV,3,1,10,70,33,037,36,71,54,110,,72,21,166,,77,23,264,*7D
    $GPGSV,3,2,10,78,27,324,,79,08,003,,85,07,105,,86,58,091,*76
    $GPGSV,3,3,10,87,56,303,,88,08,291,*76
    $GPRMC,153547.00,A,5620.9032,N,04118.9628,E,000.43834,073.6,220616,,,A*54
    $GPVTG,073.6,T,,,0000.4,N,0000.8,K,A*4E
    $GPZDA,153547.00,22,06,2016,+03,00*4C
    But the fact is that the sensor does not accept data from the GPS and NMEA Health Packet – $ PHRH in the field responsible for the GPS all the time there is 1.
    What tell about it?

    #9103
    Finn
    Participant

    Same problem here.

    RX2 is connected to the TX from the GPS

    NMEA Masage from the GPS:
    $GNGGA,135612.00,5082.09710,N,00608.13588,E,1,12,0.61,65.7,M,46.8,M,,*7C

    The RSX-UM7 health packet still contains a 1 for no GPS signal.
    The GPS pose packet is also empty.

    #9104
    Finn
    Participant

    My IMU NMEA massages:

    $PCHRH,35.031,00,00,0.0,0,0,0,0,0,1,0,0,0,*44
    $PCHRG,35.031,0.000000,0.000000,0.000,2.24,2.97,18.79,*5B

    #9105
    Finn
    Participant

    my GPS packets are transmitted with 1 Hz

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