HE910 GPS unsolicited notifications not working

2 thoughts on “HE910 GPS unsolicited notifications not working

  1. I’m trying to get GPS unsolicited notifications from a HE910. The GPS is working and the dedicated NMEA data stream (AT$GPSNMUN=3,…) is working as well. However, the unsolicited notifications (AT$GPSNMUN modes 1 and 2) are never emitted.
    I’m using an EVK2 with a “HE910/UE910 Interface board”. The device soldered on this board is a “HE910-EUG V2” (sw: 14.20.030-B037). I’m connecting through a standard serial port, no USB cable connected.
    Please find below an AT Command extract depicting the issue (my comments inserted after ###):
    AT+CGMR
    14.20.030-B037
    AT$GPSP=1
    OK
    AT$GPSSW                 ### Funnily enough, the retrieve GPS sw version command does not work either
    ERROR
    AT$GPSNMUN=1,1,1,1,1,1,1
    OK
    ### Wait a while until GPS fix are available
    AT$GPSACP
    $GPSACP: 085524.000,4320.3271N,00824.3048W,1.1,136.2,3,0.0,0.0,0.0,300514,06
    OK
    ### So, GPS fix data is available but no unsolicited notifications are being emitted.
    ### The dedicated NMEA data stream is working, though.
    AT$GPSNMUN=3,1,1,1,1,1,1
    CONNECT
    $GPGSV,3,1,09,05,47,174,39,08,19,049,30,10,01,150,26,15,50,300,47*73
    $GPGSV,3,2,09,18,09,316,26,24,22,240,43,26,72,030,27,28,43,077,31*7E
    $GPGSV,3,3,09,33,,,41*75
    $GPGGA,090039.0,4320.345213,N,00824.288210,W,1,07,0.8,147.4,M,52.0,M,,*4B
    $GPGLL,4320.345213,N,00824.288210,W,090039.0,A*2D
    [….]
    Many thanks in advance for your support!
    1. I see on my HE910 that all variants are working:

       

      AT$GPSNMUN=1,1,1,1,1,1,1

      AT$GPSNMUN=2,1,1,1,1,1,1

      AT$GPSNMUN=3,1,1,1,1,1,1

       

      AT$GPSSW is not available.

       

      Your module is running a beta firmware, try with the latest production version.