minicom
A program to communicate with the serial interface of a device.
TLDR
Open a given serial port
$ sudo minicom --device [/dev/ttyUSB0]
Open a given serial port with a given baud rate
$ sudo minicom --device [/dev/ttyUSB0] --baudrate [115200]
Enter the configuration menu before communicating with a given serial port
$ sudo minicom --device [/dev/ttyUSB0] --setup