Connect to the robot gctronic board via minicom

Install minicom

 sudo apt-get install minicom

Connect to the usb port of the board and you should see on your pc /dev/ttyUSB0

Once you have this you can connect via minicom, but you need to configure minicom:

 sudo minicom -s

 - Serial Port Setup
 -- Serial Device: /dev/ttyUSB0
 -- BPS: 115200 8N1
 -- Hardware flow control: No
 -- Software flow control: No

From now on you just need to do

 sudo minicom

Note: to exit from minicom Ctrl-A X