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    S103-G use GSM/GPRS module to connect to internet

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    • U
      unix @roberts_lando last edited by

      @roberts_lando
      i have found one error in another flow i have running sms sender i have delete this and the error seems only the trim see screenshots.

      1 alt text
      2 alt text
      3 alt text

      Regards

      i have check the modem connect over cu and modem works and i disconnect to the modem.

      roberts_lando 1 Reply Last reply Reply Quote 0
      • roberts_lando
        roberts_lando @unix last edited by roberts_lando

        @unix ok I have found the problem: replace \n with \r\n in both serial-in and serial-out nodes than it should work correctly! This has happen because when you have imported the flow I think you haven't already installed node-red-node-serial and the configuration got lost

        U 1 Reply Last reply Reply Quote 0
        • U
          unix @roberts_lando last edited by

          @roberts_lando

          WTF great thx for fast response and help :smile:

          regards

          roberts_lando 1 Reply Last reply Reply Quote 0
          • roberts_lando
            roberts_lando @unix last edited by

            @unix you welcome! :)

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            • Vesa Kauppinen
              Vesa Kauppinen @roberts_lando last edited by

              @roberts_lando said in S103-G use GSM/GPRS module to connect to internet:

              Hi!

              Great tutorial!

              I use Raspbian Stretch Lite and I can not get the S103-G to work with these instructions. The command cu -l / dev / ttyAMA0 crashes when I try to AT command. Ifconfig does not give ppp0.

              What have I missed?

              Vesa

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              • U
                unix @Vesa Kauppinen last edited by

                @Vesa-Kauppinen
                Hi
                have you disable the BT on Pi3

                /boot/config.txt addline

                dtoverlay=pi3-disable-bt

                and on /boot/cmdline.txt remove

                serial console than its looks like

                dwc_otg.lpm_enable=0 console=tty1 root=PARTUUID=e13fdf55-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait

                Regards

                Vesa Kauppinen 1 Reply Last reply Reply Quote 0
                • Vesa Kauppinen
                  Vesa Kauppinen @unix last edited by

                  @unix

                  Thank you for answer!

                  BT disabled and cmdline.txt edited...

                  No success

                  @tomas_hora any ideas?

                  Vesa

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                  • roberts_lando
                    roberts_lando last edited by

                    I always had compatibility problems when using Raspbian Stretch, try to use last Raspbian Jessie img and it should work

                    Vesa Kauppinen 1 Reply Last reply Reply Quote 0
                    • Vesa Kauppinen
                      Vesa Kauppinen @roberts_lando last edited by Vesa Kauppinen

                      @roberts_lando

                      Thank you for answer!

                      Now i have tried with Rasbian Jessie Lite.....no success :disappointed:

                      Do you use Jessie Lite or full?

                      Thanks,
                      Vesa

                      roberts_lando 1 Reply Last reply Reply Quote 0
                      • roberts_lando
                        roberts_lando @Vesa Kauppinen last edited by

                        @Vesa-Kauppinen I think you have missed one or more step of the turorial. I suggest you to retry the tutorial and check if an instruction fails. Do you have switch on the GPRS module?

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                        • M
                          mattia98 @roberts_lando last edited by mattia98

                          @roberts_lando Hi, I've done all the steps to configure the internet connection but when I type "ifconfig" it doesn't show me the ppp0 interface. Could you please help me?

                          when I type the command "cat /var/log/syslog" It show me this messages:

                          Sep 4 13:41:52 raspberrypi pppd[1698]: pppd 2.4.7 started by root, uid 0
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (BUSY)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (VOICE)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO CARRIER)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO DIALTONE)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO DIAL TONE)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO ANSWER)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (DELAYED)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (ERROR)
                          Sep 4 13:41:52 raspberrypi chat[1702]: abort on (+CGATT: 0)
                          Sep 4 13:41:52 raspberrypi chat[1702]: send (AT^M)
                          Sep 4 13:41:52 raspberrypi chat[1702]: timeout set to 12 seconds
                          Sep 4 13:41:52 raspberrypi chat[1702]: expect (OK)
                          Sep 4 13:42:04 raspberrypi chat[1702]: alarm
                          Sep 4 13:42:04 raspberrypi chat[1702]: Failed
                          Sep 4 13:42:04 raspberrypi pppd[1698]: Connect script failed
                          Sep 4 13:42:10 raspberrypi OWFS[477]: DEFAULT: ow_reconnect.c:(72) DS2482-100 bus master reconnected
                          Sep 4 13:42:30 raspberrypi OWFS[477]: DEFAULT: ow_reconnect.c:(72) DS2482-100 bus master reconnected

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                          • T
                            tomas_hora administrators last edited by

                            The issue was by the incorrect comm speed with the modem. I modified the guide provided by @roberts_lando to use the proper baudrate of 9600 instead of 115200.

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