minicom

dmesg -C: clear
plugin usb or something else
dmesg |grep tty
minicon -s
keep the tty* above in mind and run minicon
modify the tty* and set "Bps/Par/Bits" to 9600
"Save setup as dfl"
exit minicom
USER@e530:~$ minicom

<done>

####################################
USER@e530 ~ $ cat /etc/minicom/minirc.dfl
# Machine-generated file - use "minicom -s" to change parameters.
pu port             /dev/ttyUSB0
pu baudrate         9600
pu bits             8
pu parity           N
pu stopbits         1
pu rtscts           No