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

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    • 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

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      • 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

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                    • 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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