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--- raspberrypi:modem3g [2014/12/24 09:42] – external edit 127.0.0.1
+++ raspberrypi:modem3g [2022/12/02 21:02] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Connect with a 3G modem with command line ======
-I have a modem Huawei E1752Cu HSPA. What I want to do is the following: 1) send and receive an SMS using the modem and 2) establish a broadband connection using the modem.
+I have a modem Huawei E1752Cu HSPA, and I want it to connect to the internet.
-Because I don't have a concrete idea of what to do next, I am exploring both sides: 1) using sms to communicate with the raspberry and 2) using mobile broadband to communicate with the raspberry. The fares of having a mobile connected all the time (plain fare are about 15 euros/month) and in the case of the sms you only pay the sms you send, so in some cases is advisable using only sms.
+===== Detect the vendor and the product =====
-===== Setup modem =====
+After connecting the modem, perform a lookup of the syslog. It will show you the vendor and the product:
-Install modem-manager:
 <code>
-# sudo apt-get install modemmanager
+Feb 28 21:18:39 raspi kernel: [ 1432.602724] usb 1-1.2: new full-speed USB device number 12 using dwc_otg
+Feb 28 21:18:39 raspi kernel: [ 1432.737215] usb 1-1.2: New USB device found, idVendor=12d1, idProduct=1004
+Feb 28 21:18:39 raspi kernel: [ 1432.737239] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
+Feb 28 21:18:39 raspi kernel: [ 1432.737250] usb 1-1.2: Product: HUAWEI Mobile
+Feb 28 21:18:39 raspi kernel: [ 1432.737259] usb 1-1.2: Manufacturer: HUAWEI Technologies
 </code>
-it will detect the modem, do necessary loading of modules and things like that. It is advisable to use it as a service, so when plugin the modem it will be authomatically configured.
+So, in my case the vendor id is 12d1 and the product is 1004.
-I reommend to run it the ''--debug'' option enabled in order to see what is happening behind the scenes:
+===== Install usb_modeswitch =====
 <code>
-root@raspberrypi:/home/pi# modem-manager  --debug
+# apt-get install usb-modeswitch
-modem-manager[16723]: <info>  [1359305305.945270] [main.c:167] main(): ModemManager (version 0.5.2.0) starting...
-modem-manager[16723]: <info>  [1359305305.993128] [mm-manager.c:120] load_plugin(): Loaded plugin Option
-modem-manager[16723]: <info>  [1359305306.002902] [mm-manager.c:120] load_plugin(): Loaded plugin ZTE
-modem-manager[16723]: <info>  [1359305306.013057] [mm-manager.c:120] load_plugin(): Loaded plugin Huawei
-modem-manager[16723]: <info>  [1359305306.020689] [mm-manager.c:120] load_plugin(): Loaded plugin X22X
-modem-manager[16723]: <info>  [1359305306.028594] [mm-manager.c:120] load_plugin(): Loaded plugin Gobi
-modem-manager[16723]: <info>  [1359305306.036247] [mm-manager.c:120] load_plugin(): Loaded plugin Nokia
-modem-manager[16723]: <info>  [1359305306.046679] [mm-manager.c:120] load_plugin(): Loaded plugin Samsung
-modem-manager[16723]: <info>  [1359305306.054036] [mm-manager.c:120] load_plugin(): Loaded plugin Linktop
-modem-manager[16723]: <info>  [1359305306.064143] [mm-manager.c:120] load_plugin(): Loaded plugin Ericsson MBM
-modem-manager[16723]: <info>  [1359305306.072771] [mm-manager.c:120] load_plugin(): Loaded plugin Wavecom
-modem-manager[16723]: <info>  [1359305306.081609] [mm-manager.c:120] load_plugin(): Loaded plugin Novatel
-modem-manager[16723]: <info>  [1359305306.091642] [mm-manager.c:120] load_plugin(): Loaded plugin Option High-Speed
-modem-manager[16723]: <info>  [1359305306.101939] [mm-manager.c:120] load_plugin(): Loaded plugin Sierra
-modem-manager[16723]: <info>  [1359305306.110765] [mm-manager.c:120] load_plugin(): Loaded plugin Generic
-modem-manager[16723]: <info>  [1359305306.118949] [mm-manager.c:120] load_plugin(): Loaded plugin SimTech
-modem-manager[16723]: <info>  [1359305306.127009] [mm-manager.c:120] load_plugin(): Loaded plugin MotoC
-modem-manager[16723]: <info>  [1359305306.134973] [mm-manager.c:120] load_plugin(): Loaded plugin Longcheer
-modem-manager[16723]: <info>  [1359305306.142911] [mm-manager.c:120] load_plugin(): Loaded plugin AnyData
-modem-manager[16723]: <debug> [1359305306.203809] [mm-manager.c:491] try_supports_port(): (Huawei): (ttyUSB1) deferring support check
 </code>
-Many lines will evidence where is the modem located:
+===== Configure the product and the vendor =====
-<code>
+Then open the modem definition file, which in my case is ''/usb/share/usb_modeswitch/configPack.tar.gz''
+and then copy one existing similar to ours. In my case, I've found the 12d1:1003, so I've
-modem-manager[16723]: <debug> [1359305306.394255] [mm-at-serial-port.c:333] debug_log(): (ttyUSB0): --> 'AT+GCAP<CR>'
+copied it to create my own configuration of modeswitch:
-modem-manager[16723]: <debug> [1359305307.099166] [mm-at-serial-port.c:333] debug_log(): (ttyUSB0): <-- 'AT+GCAP'
-modem-manager[16723]: <debug> [1359305307.102651] [mm-at-serial-port.c:333] debug_log(): (ttyUSB0): <-- '<CR><CR><LF>+CME ERROR: SIM PIN required<CR><LF>'
-</code>
-In my case is /dev/ttyUSB0.
-===== Send and receive SMS =====
-My next step is to send and receive a test sms. First, I will install minicom to do the test directly typing the AT commands to the modem.
 <code>
-# sudo apt-get install minicom
+cp 12d1:1003 /etc/usb-modeswitch.d/12d1:1004
 </code>
-<code>
+So, after that we will see that the modem is recognized.
-# minicom --device /dev/ttyUSB0
-</code>
-It is advisable to check out these pages in order to know the basic AT commands to do the task:
+===== Install wvdial and ppp =====
-  * [[http://www.shapeshifter.se/2008/04/30/list-of-at-commands/]] - Interesting to make a connection to the internet
+The configuration for me resulted as:
-  * [[http://www.developershome.com/sms/atCommandsIntro.asp]]
-==== Enter the pin, check pin status, etc ====
-See pin status:
 <code>
-AT+CPIN?
+[Dialer Defaults]
-+CPIN: SIM PIN   # it needs pin of the SIM
+Modem Type = USB Modem
+Phone = *99#
-OK
+ISDN = 0
+Username = "pepephone"
+Password = "pepephone"
+Stupid Mode = 1
+New PPPD = yes
+Modem = /dev/ttyUSB0
+Baud = 460800
+Init1 = ATZ
+Init2 = AT+CPIN="YOUR-PIN-CODE-HERE"
+Init3 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
+Init4 = AT+CGDCONT=1,"IP","gprs.pepephone.com"
+Auto DNS = 1
+Dial Command = ATDT
+Carrier Check = yes
+Stupid Mode = 1
 </code>
-Enter pin:
-<code>
+This was the most difficult part, because It requested me to guess what the configuration
-AT+CPIN=9999 # put your pin here
+optimum for the modem.
-OK
-</code>
-==== Network registration ====
+In "Modem", you have to select the device of the modem, after it is connected.
-Check out network registration and register into network if neccesary:
+The date "Phone", "Username", "Password", and Init*. The Init* sequence cost me because you have to
+guess the at commands that suits your modem.
-<code>
-AT+CREG?
-+CREG: 0,5   # 5 means connected
-</code>
-Description of the values:
-<n>
+===== Send an sms =====
-  * Disable unsolicited status callback.
-  * Enable unsolicited status callback, +CREG: <stat>
-  * Enable unsolicited status callback, +CREG: <stat>,[,<lac>,<ci>[,<AcT>]]
-<stat>
-  * Not registered, not searching
-  * Registered to home network
-  * Not registered, searching for network
-  * Registration denied
-  * Registered, roaming
-You can change the status with the following command:
-<code>
-AT+CREG=1
-</code>
-==== Send an sms ====
 There are many ways to send an sms. You can send it directly, write first the message into the memory of the modem, etc...
@@ Line 165: / Line 116: @@
-==== Lista de operadores moviles ====
-<code>
-AT+CGDCONT?
-</code>
-Y usamos uno:
-<code>
-AT+CGDCONT=1
-</code>
-===== Connect to internet =====
-INSTALAMOS PPP Y WDIAL:
-<code>
-# sudo apt-get install wvdial ppp
-</code>
-~~DISQUS~~