Raspbian USB 4g Modem Driver Upgrade and UBS Modeswitch Management
Budget: $250 – $750 AUD
We created a RPI3 B project about 5-6 years ago that used a usb 3g modem for connecting to 3g network and for sending SMS alerts to a phonebook.
For this system we use SAKIS3g connection tool for network connection and Gammu for SMS management.
The regions where these devices are deployed are soon to switch off their 3g networks so we have selected a new 4G usb modem.
We need to achieve the following:
- Ensure the new model of USB modem successfully switched into serial mode communication so that it can be accessed by Sakis 3g and gammu
- update any required drivers to ensure smooth connection and usability of the new USB modem
NOTES:
We need to maintain use of Sakis3g and Gammu to prevent having to change other aspects of our software.
The image on the PI is quite old but we cannot update too much so as not to ruin compatibility with other software's we use. SO you will be working from our current image (not a recent image of raspian)
The previous model of USB modem: MS2131i-8
New model of 4g USB modem: DLINK DWM-222
Work we have conducted thus far:
1. Test DWM 222 on RPIB3 which works fine in default mode of Hi-link connection. (Hilink provides an emulated network port and connects device to internet via that, however it is not suitable for us as we need serial level access to the device to manage connection and sms
2. attempted to run modeswitch command so as to expose serial interface - this is where we are stuck we cannot seem to get the device exposed on ttyUSB0 or similar
Technician will be given remote connection to a windows laptop that is on the same network as the test device. Technician can connect an manage the RPI device over shell using putty or similar.
For this system we use SAKIS3g connection tool for network connection and Gammu for SMS management.
The regions where these devices are deployed are soon to switch off their 3g networks so we have selected a new 4G usb modem.
We need to achieve the following:
- Ensure the new model of USB modem successfully switched into serial mode communication so that it can be accessed by Sakis 3g and gammu
- update any required drivers to ensure smooth connection and usability of the new USB modem
NOTES:
We need to maintain use of Sakis3g and Gammu to prevent having to change other aspects of our software.
The image on the PI is quite old but we cannot update too much so as not to ruin compatibility with other software's we use. SO you will be working from our current image (not a recent image of raspian)
The previous model of USB modem: MS2131i-8
New model of 4g USB modem: DLINK DWM-222
Work we have conducted thus far:
1. Test DWM 222 on RPIB3 which works fine in default mode of Hi-link connection. (Hilink provides an emulated network port and connects device to internet via that, however it is not suitable for us as we need serial level access to the device to manage connection and sms
2. attempted to run modeswitch command so as to expose serial interface - this is where we are stuck we cannot seem to get the device exposed on ttyUSB0 or similar
Technician will be given remote connection to a windows laptop that is on the same network as the test device. Technician can connect an manage the RPI device over shell using putty or similar.