MDM is the most important interface that allow Python script to send and receive data
from the network during connections. It is similar to the standard serial port interface
of the Telit module. The difference is that this interface is not a real serial port but
rather an internal software bridge between Python and the engine handling the
internal AT commands.
This interface allows a Python script to read and write to the real physical serial
port ASC0. When Python is running, this serial port is available for communication
between Python script and an external device, since it"s not being used as AT
command interface.
GPIO interface is between Python and General Purpose Input/Output of the mobile
device that permits direct control over the pins.
This interface is between Python and miscellaneous functions of the module such
as sleep and counter.
This is a custom software IIC bus that can be mapped over any available GPIO pin
A custom software Serial Protocol Interface bus that can be mapped over any
available GPIO pin