Use Wvdial for connecting cellular network RPI

Sinamics

Hi
Yes that is possible. There are many ways to send AT commands, bellow is one
http://hristoborisov.com/index.php/projects/turning-the-raspberry-pi-into-a-sms-center-using-python/

and you probably looking for signal strength command;
AT+CSQ

Sinamics

You could also use screen.

sudo apt-get install screen screen /dev/ttyUSB0 9600

Chuckster1

Hello from USA again. Hows it going Bernt?

Still having fun with this cellular stuff. Had a pretty bad quad crash and my Verizon hotspot barely works, so I've decided to use Huawei 3276. Also, I'm trying Raspberry Pi 3! A couple of corrections and questions. First, the install should be usb-modeswitch, not usb_modeswitch. When you Save a file as /etc/usb_modeswitch.d/idVendor, you have ltVendor= 0x12d1, should probably be IdVendor. Also, when you type 0x12d1, is that 0 then the letter "x" then 12d1(is it the same for wvdial.conf file, use the letter "x" in message endpoint)?Also, would my file /etc/usb_modeswitch.d/12d1:14fe have exactly the same contents, ie message content "00000000.....00000" and everything?

Also, the Phone = *99# won't be the same for everyone.
https://zoomtel.zendesk.com/entries/24880068-Mobile-broadband-service-provider-settings

Anyways, my problem is when I try to run wvdial i get: Cannot open /dev/ttyUSB0: No such file or directory. One more question, do I have to have a sd card in my modem?

Chuckster1

Scratch that, I found my error.
Still not working, but I think I found a great informative video on wvdial:

https://youtu.be/A4urP-GlSwg

I will be trying this soon.:-)

Sinamics

Hi Chuckster1.
I`v been out on a business trip, so did not get time to answer you.
Thank you for pointing those typos out, i will correct them.

Does /dev/ttyUSB0 exsist in /dev/ folder?

If you type dmesg, you should find the adress of the modem.

Chuckster1

Hello again.

I'm makiing progress
All the inital sending goes ok.

CONNECT EDGE
Carrier detected. Starting PPP immediately.
Starting PPP at .........
Using interface ppp0
then 6 lines of pppd : 8[07...............[01]
Disconnecting at ....

The PPP daemon has died: A modem hung up the phone (exit code = 16)

I am using a different modem and just copied your message content for modeswitch.d file. I dont know how to find this.

Sinamics

Hi
Do yo uuse UAVcast or standalone Wvdial? These "lines" usually happens if the APN is wrong, or if modem is in Storage state.

Type "lsusb" and post the content here.
If you open port 22 and PM me your external ip, i can have a look later today.

Chuckster1

Hello

ttyusb is registered

this is my lsusb:

root@raspberrypi:/home/pi# lsusb
Bus 001 Device 006: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]
Bus 001 Device 005: ID 1410:b001 Novatel Wireless Ovation MC551
Bus 001 Device 004: ID 3938:1032
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

I think its correctly showing my Novatel Verizon dongle.

Here is my wvdial log:

--> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATE1
ATE1
OK
--> Sending: AT+CGDCONT=1 ,"IP", "vzwinternet"
AT+CGDCONT=1 ,"IP", "vzwinternet"
OK
--> Modem initialized.
--> Sending: ATDT*99***3#
--> Waiting for carrier.
ATDT*99***3#
CONNECT EDGE
--> Carrier detected.  Starting PPP immediately.
--> Starting pppd at Sun Nov 13 17:04:04 2016
--> Pid of pppd: 842
--> Using interface ppp0
--> pppd: ?a??@??
--> pppd: ?a??@??
--> pppd: ?a??@??
--> pppd: ?a??@??
--> pppd: ?a??@??
--> pppd: ?a??@??
--> Disconnecting at Sun Nov 13 17:04:04 2016
--> The PPP daemon has died: A modem hung up the phone (exit code = 16)
--> man pppd explains pppd error codes in more detail.
--> Try again and look into /var/log/messages and the wvdial and pppd man pages for more information.
--> Auto Reconnect will be attempted in 5 seconds
--> Initializing modem.

Looks like I'm very close but no cigar,

Sinamics

Hi Chuckster. How does your ifconfig looks like with the cell dongle connected?

Chuckster1

Hi my ifconfig returns etho, lo, and wwan0, no ppp0

Chuckster1

Also, 1 time I got IP addresses in my wvdial log and was connected for .1 sec. I powered up the RPI with the dongle disconnected, plugged it in, and quickly ran DroneStart.sh. It ended with a modem hung up the phone and exit code 16. But I think that tells me my APN and credentials are correct. Also, this dongle works fine in my windows laptop.

Chuckster1

Also, 1 very interesting thing.... Everytime I booted the RPI, my dongle light was blinking and at least it tried to connect.

Then, I believe I changed a setting in the dongle itself. When it was hookked to my windows laptop, I "Set the current device" Then it said, "By setting the current device, VZAccess Manager will no longer prompt you to switch device when a device is removed or inserted. To change devices, select "Detect Device..." from the options menu" then I clicked Yes to continue.

After this, the modem would no longer blink all the time in the RPI, I had to wait till it was booted then insert it.

SenZBar

Hey Bernt & Chuckster,

I finally recived my Navio2 and have it connected to my Rpi3 which has onboard wi-fi.

(I want to do all set-up and testing on my local wifi before I try the 4GLTE set up.)

I used the Emlid image and cannot get it to connect to my wifi without the ethernet cable attached. Have you heard about this or have any suggestions?

Thanks

« Previous Page