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

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    • T
      tomas_hora administrators @roberts_lando last edited by

      @roberts_lando You need to export the GPIO to FS first by

      echo 18 > /sys/class/gpio/export

      I have added the missing line to the howto.

      Support for GSM/GPRS is not yet planned in Evok

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      • roberts_lando
        roberts_lando last edited by roberts_lando

        I already did it, now I'm tring to configure the module to connect to internet, for now I was just able to send an sms but maybe this could be useful for someone so i will post my tutorial here:

        1. Export pin 18
        echo 18 >/sys/class/gpio/export
        1. Switch on module
        echo out > /sys/class/gpio/gpio18/direction
echo 1 > /sys/class/gpio/gpio18/value
echo 0 > /sys/class/gpio/gpio18/value
sleep 1
echo 1 > /sys/class/gpio/gpio18/value
sleep 2
        1. Start the communication using cu
        apt-get install cu
chown root:root /dev/ttyAMA0
cu -l /dev/ttyAMA0
        1. Send sms (<Enter> means you have to press enter, OK is the output of the command)
        AT  <Enter>
OK

AT+CMGF=1 <Enter>
OK

AT+CMGS="yourphonenumber" <Enter>
> Prova  <Ctrl+z>

+CMGS: 152
OK

//EXIT CU
~. <Enter>

        Now I'm using this tutorial to do what I want but I'm stucked in step 2, I'm not able to find the USB switching codes because the command lsusb doesn't lists the FIBOCOM G510 module:

        Bus 001 Device 004: ID 04d9:1702 Holtek Semiconductor, Inc.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

        Neighter the command df doens't shows the /dev/ttyAMA0 interface. I have try to add enable_uart=1 to /boot/config.txt file but doesnt't works.

        Any suggestion @administrators? Thanks

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        • T
          tomas_hora administrators @roberts_lando last edited by

          @roberts_lando You got the wrong tutorial, try eg this one: http://www.rhydolabz.com/wiki/?p=16325

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          • roberts_lando
            roberts_lando last edited by

            Thanks @tomas_hora I did it now! If you want I can make a full tutorial about this topic

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            • roberts_lando
              roberts_lando last edited by tomas_hora

              TUTORIAL FIBOCOM G510 Unipi Neuron S103-G

              Make the file-system writable:

              mount / -o remount,rw
mount /boot -o remount,rw

              Test the interface /dev/ttyAMA0 (serial link parameters: 115 200 1N8 Bps/Par/Bits)

              1. Export pin 18
              echo 18 >/sys/class/gpio/export
              1. Switch on module
              echo out > /sys/class/gpio/gpio18/direction
echo 1 > /sys/class/gpio/gpio18/value
echo 0 > /sys/class/gpio/gpio18/value
sleep 1
echo 1 > /sys/class/gpio/gpio18/value
sleep 2
              1. Start the communication using cu
              apt-get install cu
chown root:root /dev/ttyAMA0
cu -l /dev/ttyAMA0
              1. Test: send sms (<Enter> means you have to press enter, OK is the output of the command)
              AT  <Enter>
OK

AT+CMGF=1 <Enter>
OK

AT+CMGS="yourphonenumber" <Enter>
> Prova  <Ctrl+z>

+CMGS: 152
OK
              1. Disconnect: type ~ (alt+126) than wait for [unipi] output than type . and hit <Enter>
              ~[unipi]. <Enter>

              If interface doesn't works try:

              1. Enable UART: nano /boot/cmdline.txt add (if not present) or edit this line: enable_uart=1. Close and save the file by typing Ctrl+X and Y. Reboot Unipi Neuron and retry to test the interface.

              Now let's configure the interface for internet connection

              1. Install required packages
              apt-get update
apt-get install ppp screen elinks
              1. Edit the configuration file (I use nano apt-get install nano)
              cd /etc/ppp/peers/
nano rnet
              1. Copy the code below to the new file
              #configure for connection
connect "/usr/sbin/chat -v -f /etc/chatscripts/gprs -T <yourAPNhere>"
 
# Use /dev/ttyAMA0 as the communication port:
/dev/ttyAMA0
 
# Baudrate
9600
 
# Assumes that your IP address is allocated dynamically by the ISP.
noipdefault
 
# Try to get the name server addresses from the ISP.
usepeerdns
 
# Use this connection as the default route to the internet.
defaultroute
 
# Makes PPPD "dial again" when the connection is lost.
persist
 
# Do not ask the remote to authenticate.
noauth
 
# No hardware flow control on the serial link with GSM Modem
nocrtscts
 
# No modem control lines with GSM Modem
local

              1. Replace <yourAPNhere> with your APN (Search in google APN of "your mobile operator") close and save the file by typing Ctrl+X and Y

              2. If your SIM card has a PIN edit this file nano /etc/chatscripts/gprs un comment the line AT+CPIN=1234 and set the pin instead of 1234

              3. Enable the connection by typing pon rnet. The show the log for PPPD type cat /var/log/syslog | grep pppd it will show if connection is established successfully.

              4. Type ifconfig, now you should see another interface named ppp0.

              0_1507015540134_upload-6607adf9-72d1-4cc9-97e2-cbe5b291b1c7

              1. To close the connection type poff rnet
              T Vesa Kauppinen M 3 Replies Last reply Reply Quote 0
              • T
                tomas_hora administrators @roberts_lando last edited by

                @roberts_lando Great! Thanks a lot!

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                • roberts_lando
                  roberts_lando last edited by roberts_lando

                  @tomas_hora Just made a node-red Dashboard to get Modem Data :)

                  0_1507124912843_upload-f44d0f00-3612-47f8-aa08-91819d6ff5fe

                  0_1507124782319_upload-8a2171eb-31ce-403a-8b88-428e8162c1b4

                  With MNC MCC CellID and LAC it is also possible to get the location of the device by using https://opencellid.org/ APIs

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                  • O
                    oho last edited by

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

                    Does anyone know if it's possible to send AT commands from Mervis after turning on the modem first? Thanks.

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                    • T
                      tomas_hora administrators @oho last edited by

                      @oho Support of the GSM functionality will be available in Mervis in the next release.

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                      • U
                        unix @roberts_lando last edited by

                        @roberts_lando hi iam new in node-red and S103-g my question is can you share your nice looking flow to learn better node-red.
                        regards

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                        • roberts_lando
                          roberts_lando last edited by roberts_lando

                          @unix I have added it to node-red flows library: https://flows.nodered.org/flow/af6487676bd89e5e8b74b2c9da1e176d

                          Enjoy :)

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                          • U
                            unix last edited by

                            Nice thx for help :smile:
                            Regards

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                            • U
                              unix last edited by

                              Hi
                              i have inport your data but i get one error in debug
                              its "3.11.2017, 10:59:29node: parseModelIDfunction : (error)
                              "TypeError: Cannot read property 'trim' of undefined""

                              and the website looks like :
                              Daschboard
                              connect is green but no info i have only change the serial connect to
                              /dev/ttyAMA0: 115200-8n1

                              or i have problems whit the modem i can send the first sms whitout problems but after this only error when i test it whit cu -l /dev/ttyAMA0

                              hope for hints :smile:

                              Regards

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                              • roberts_lando
                                roberts_lando @unix last edited by roberts_lando

                                @unix Did you close the connection after using cu? Cause that error means that I call .trim() in an undefined var (modelID) that means no data is received after the command. Each command has a timeout, after that I close the read stream from the serial and I try to parse the response string, if the response string is not well parsed those errors are normal, try to put a debug node to see the output of the serial and check that the cu session is closed.

                                Disconnect: type ~ (alt+126) than wait for [unipi] output than type . and hit <Enter>

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                                • U
                                  unix last edited by

                                  Hi
                                  yes the cu session a closed in debug i see this

                                  3.11.2017, 11:25:11node: 96ac4186.358femsg.payload : string[4]
"OK↵"
3.11.2017, 11:25:13node: 96ac4186.358femsg.payload : string[11]
"AT+COPS? ↵"
3.11.2017, 11:25:13node: 96ac4186.358femsg.payload : string[17]
"+COPS: 0,0,"A1"↵"
3.11.2017, 11:25:13node: 96ac4186.358femsg.payload : string[2]
"↵"
3.11.2017, 11:25:13node: 96ac4186.358femsg.payload : string[4]
"OK↵"
3.11.2017, 11:25:14node: parseOperatorfunction : (error)
"TypeError: Cannot read property 'trim' of undefined"
3.11.2017, 11:25:15node: 96ac4186.358femsg.payload : string[10]
"AT+CGMI ↵"
3.11.2017, 11:25:15node: 96ac4186.358femsg.payload : string[18]
"+CGMI: "Fibocom"↵"
3.11.2017, 11:25:15node: 96ac4186.358femsg.payload : string[2]
"↵"
3.11.2017, 11:25:15node: 96ac4186.358femsg.payload : string[4]
"OK↵"
3.11.2017, 11:25:17node: 96ac4186.358femsg.payload : string[10]
"AT+CGMM ↵"
3.11.2017, 11:25:17node: 96ac4186.358femsg.payload : string[38]
"+CGMM: "GSM850/900/1800/1900","G510"↵"
3.11.2017, 11:25:17node: 96ac4186.358femsg.payload : string[2]
"↵"
3.11.2017, 11:25:17node: 96ac4186.358femsg.payload : string[4]
"OK↵"
3.11.2017, 11:25:18node: parseModelIDfunction : (error)
"TypeError: Cannot read property 'trim' of undefined"

                                  Regards

                                  roberts_lando 1 Reply Last reply Reply Quote 0
                                  • 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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