Modem information
The modem information library can be used by an LTE application to obtain specific data from a modem. It issues AT commands to retrieve the following data:
Signal strength indication (RSRP)
Current and supported LTE bands
Tracking area code, mobile country code, and mobile network code
Current mode and operator
The cell ID and IP address of the device
UICC state, SIM ICCID and SIM IMSI
The battery voltage and temperature level, measured by the modem
The modem firmware version
The modem serial number
The LTE-M, NB-IoT, and GNSS support mode
Mobile network time and date
The modem information library uses the AT parser.
Call modem_info_init()
to initialize the library.
To obtain a data value, call modem_info_string_get()
(to retrieve the value as a string) or modem_info_short_get()
(to retrieve the value as a short).
You can also retrieve all available data.
To do so, call modem_info_params_init()
to initialize a structure that stores all retrieved information, then populate it by calling modem_info_params_get()
.
Note, however, that signal strength data (RSRP) is only available by registering a subscription. To do so, call modem_info_rsrp_register()
.
API documentation
include/modem/modem_info.h
lib/modem_info/