4.2.9 Setting up wvdial

This step will cover using wvdial with the IoT Bit instead of Network Manager.The reason for using wvdial

instead of Network Manager is when you want to be able to switch between AT command mode and internet

mode easily. As once the network is configured via Network Manager, it will have removed access to the ATPort

available via the USB.

Now we need to configure the wvdial.conf file to enable IoT Bit to connect to the internet using your SIM card.

You will need the USSD code used to fetch the SIM cards registered number.

The default is *99# and should be the same for most SIM cards or you can just use the SIM cards’ phone

number if you can't find the USSD code. Just remember that you will have to edit the file to change the number

if you change the SIM. We will need to open the file found in the iotbit_Install folder called wvdial.conf using a

text editor of your choice.

$ sudo nano /home/pi/iotbit_Install/wvdial.conf

Then add to the file your USSD code or phone number in the 'Phone =' field.

Save and exit the file by pressing CTRL+X then Y.

We now need to back up the old wvdial.conf file and move your modified wvdial.conf to the correct place for

the system to find it.

$ sudo mv /etc/wvdial.conf /etc/wvdial.conf.bak

$ sudo mv /home/pi/iotbit_Install/wvdial.conf /etc/wvdial.conf

$ sudo wvdial

This last step takes around 30 seconds.

If successful, you should be connected to the internet with your Raspberry Pi.

4.2.10 Set wvdial to use modem automatically

To enable the Raspberry Pi to connect IoT Bit to the

internet using the mobile network automatically,

we use the following steps.

First, open the file called interfaces using:

$ sudo nano /etc/network/interfaces

Then add the following lines at the bottom of the file:

$ auto ppp0

$ iface ppp0 inet wvdial

Then reboot the Pi, ensuring that the IoT Bit is on and

the Modem USB port is connected to the Pi.

$ sudo reboot

If successful when the Raspberry Pi boots you should be able to connect to the internet using your IoT Bit.

Figure 23 - Wvdial Interface

Figure 24 - Interfaces File

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