minicom

Overview

minicom is a Linux program to . It calls itself a “friendly serial communications program”. It is also available for the RaspberryPi.

If you want to connect two terminals together and test the output/input of Minicom, check out the Connecting Two COM Ports Together” section on the socat program page.

Installing

If using a Debian-style Linux (incl. the RaspberryPi), you can install minicom with the following command:

Config

You normally start minicom with the -s flag, so that you can set the configuration settings correctly.

However, you can configure some of the most-used settings directly from the command line. Use -D to set the device name:

Use -b to set the baud rate:

Logging

Start minicom with the following command to enable logging:

Minicom describes this option as “open capture file at startup”. A quick way to clear a log file is by using the command cat /dev/null > MyLogFile.txt.

Macros

Minicom suppports the use of macros (key press sequences) that can be binded to the F1-F9 keys.

To setup macros, follow the instructions below:

  1. While Minicom is running, press Ctrl-A, O to bring up the “cOnfigure Minicom” menu.
  2. Scroll down and select Screen and keyboard.
  3. Press M to select “Edit Macros”.
  4. Press 1-9 (or A) to edit the associated macro.

Special Characters

Minicom macros support the insertion of special characters (such as new lines and carriage returns) via the following syntax:

Syntax Character It Inserts
^J New line (\n)
^M Carriage return (\r)