top of page

Configure minicom for a USB-to-Serial Converter

Updated: Mar 28


This post shows you how to configure minicom for a USB-to-Serial Converter, run it, and exit it.


Note


You will need to log out and log back in again.



Do These Steps Once


No sudo

These steps ensure that you don't have to run minicom with sudo. Do these steps one time.

1. Type sudo usermod -a -G dialout USERNAME (replace USERNAME with your username)

2. Log out and log in


Configure minicom

These steps ensure that minicom is configured


1. Type sudo minicom -s

You should see:

First sudo minicom -s output

Note

You need to run _this_ step with sudo so that you can Save setup as dfl later



2. Press the down arrow twice

You should see:

Select Serial port setup


3. Press Enter

You should see:

Screen after Serial port setup

4. Press A, and set the serial device to /dev/ttyUSB0 and press Enter


5. Press E and set the Bps/Par/Bits to 115200 8N1 and press Enter


6. Press F until Hardware Flow Control in No


7. Press G until Software Flow Control is No


8. Press Enter

You should see this again:

Back to the first minicom screen


9. Press the down arrow 3 times

You should see:

After hitting the down arrow 3 times


10. Press Enter

You should see:

After hitting enter to save the default

11. Press the down arrow 3 times

You should see:

Minicom output after hitting down 3 times, Exit from Minicom


12. Press Enter


Minicom is now configured




Run minicom


1. Plug your USB-to-Serial cable in

2. Type ls -l /dev/ttyUSB0

You should see:

crw-rw---- 1 root dialout 188, 0 Nov 18 21:06 /dev/ttyUSB0


3. Type minicom

You should see:

First screen after typing minicom


Exit minicom


1. Type Control-a x

You should see:

Exit minicom

2. Press Enter



Reference


Install the Arduino Software (IDE) on Linux at [link]

bottom of page