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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 I haven't the possibility to debug it right now, as your debug shows the commands are correctly received, I think you have to change the serial in-out configuration. Check it and send me a screenshot of both.

      Also try to put a debug node after join node wired with serial-out

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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

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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

                        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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