This is a terminal program with GUI communicating through serial port. It can be used to facilitate testing of any cellular (2G/3G/LTE/etc) or any other modems controlled by AT-like commands.
The original program is designed for use in Windows OS, but after small modifications it can be used in other OS (successfully tested in Ubuntu 20).
To get information about serial ports use "Ports info" button. To get list of free serial ports use "Get free ports" button. To open serial port enter number of the port (digits only) in "Port number" field and press "Open" button. In case of empty "Port number" field the program will open first free port with the lowest number.
If you need to migrate from PySide6 to PySide2 just rename "PySide6" to "PySide2" in imports and change the following lines at the end of main.py:
# sys.exit(app.exec()) # PySide6
sys.exit(app.exec_()) # PySide2
