Connecting to 3G via ppp without Hologram SIM

Forums Technical Support for BerryGPS-GSM Connecting to 3G via ppp without Hologram SIM

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  • #11821
    Jake
    Participant

    Hello,

    I tried your tutorial https://ozzmaker.com/berrygps-gsm-using-gps-and-connecting-via-3g-2g-using-ppp/ to connect to internet using a vodafone SIM card which has no username and password. Of course I changed the APN - in my case to "gprs.is"

    As the ppp connection did not work (on one Raspberry Pi, nothing happened, another crashed when I started ppp with "sudo pon"), I tried to set the individual AT commands to SARA u-201 in minicom according to the tutorial https://ozzmaker.com/get-a-gps-fix-in-seconds-using-assisted-gps-on-a-raspberry-pi-with-a-berrygps-gsm/:

    AT+UPSD=0,1,"gprs.is"

    Which gives me: OK

    AT+UPSDA=0,3

    Also gives me: OK

    The other GPS related commands seem to work.

    However, no internet connection is available. What steps am I missing? Do you have another example until completing 3g connection with a ordinary SIM card? Or can I use the hologram Python SDK for other SIM cards aswell?

    At the end, I want to run 3G and GNSS both via USB without using the i2c headers to the Pi.

    I would be happy for help, because for our student project we are running out of time.

     

     

    #11823
    PeterP
    Participant

    after the commands above, what are the results of these two commands?

    AT+UPSND=0,8
    AT+UPSND=0,0

    The first checked the connection status and the second shows the ip.

    And then do this one to show what carrier you are connected to
    AT+COPS?

    • This reply was modified 9 months, 1 week ago by PeterP.

    Peter --OzzMaker.com --

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