BerryGPSIMUv3 guide?

Viewing 7 posts - 1 through 7 (of 7 total)
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  • #7656
    Jon
    Participant

    I just received my order of the latest BerryGPSIMUv3 and the pinouts and pads are different than the V2, but I can't seem to find a guide on the website for the V3.  (Specifically I'm trying to find the equivalent of the PPS pad on the V2, which doesn't seem to exists, or has been relabled on the V3)

    #7657
    Mark Williams
    Keymaster

    Hi Jon

    Sorry for the hassle, we will be updating the web site today. The pin you are after is T_PULSE, which is down the left hand side

    Mark --OzzMaker.com --

    #7707
    kmdorf
    Participant

    Hello,

    I used successfully GPS IMU 1 and 2. Last week I received version 3 and I can't get the GPS to work.

    I get the following data outputs when following the instructions. Using version 2 works fine with same antenna and same pi board.

    Did something change in the setup, or something else I miss?

    #7712
    Mark Williams
    Keymaster

    Hi

    When it comes to the GPS and setup, there is no difference between V1, V2 or V3.

    The GPS module used in V3 is much more advanced than V1 or V2, it also has a better reception.

    Are you using an external antenna? and if so, do you have the switch in the correct position?

    Mark --OzzMaker.com --

    #7713
    kmdorf
    Participant

    Hi,

    I use an external antenna, the one you offered in the web shop. The switch is on EXT and I use the same system I use for V2 in the same location and can't get it to work. I ordered 4 GPS IMUS and tried 2 of the 4 so far without any success of getting a GPS signal.

    #7714
    Mark Williams
    Keymaster

    Are you inside or outside?

    Are you able to try using the internal antenna? (the GPS would need to be outside for this.)

     

    When the GPS first boots up, can you check the lines shown in bold below, see if you get the same.

    1. You will need to have the BerryGPS-IMU not connected to the Pi
    2. kills GPSD sudo killall gpsd
    3. view /dev/serial0
      cat /dev/serial0
      or
      minicom -b 9600 -o -D /dev/serial0
    4. Connect BerryGPS-IMU to the Pi
    5. The lines below should appear somewhere at the start
    <strong>$GNTXT,01,01,02,ANTSTATUS=INIT*3B</strong>
    $GNRMC,,V,,,,,,,,,,N*4D
    $GNVTG,,,,,,,,,N*2E
    $GNGGA,,,,,,0,00,99.99,,,,,,*56
    $GNGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*2E
    $GNGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*2E
    $GPGSV,1,1,00*79
    $GLGSV,1,1,00*65
    $GNGLL,,,,,,V,N*7A
    <strong>$GNTXT,01,01,02,ANTSTATUS=OK*25</strong>
    $GNRMC,,V,,,,,,,,,,N*4D

     

    Can you also confirm that the nut on the back of the SMA connector is screwed tight

     

    Mark --OzzMaker.com --

    #7716
    kmdorf
    Participant

    Thank you for the quick support. I successfully solved my issue. It was related to a broken uFL to SMA RF connector,  though it was a new one. This was the only component which was unique in all the configurations I used (GPSIMU v2 and GPSIMU V3, RPi 3, SD card with same system and same antenna).

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