Discovering the Baud Rate reference 1
ubuntu:~$ wget https://raw.githubusercontent.com/devttys0/baudrate/master/baudrate.py
ubuntu:~$ sudo ./baudrate.py -p /dev/ttyUSB0
After you plug in the UART2USB
ubuntu:~$ dmesg | grep tty
[ ] usb 1-2: cp210x converter now attached to ttyUSB0