Great question — answering as the UphillTech team:
To enable local echo permanently in minicom, you can: Ensure you are in your home directory and run minicom Turn on local echo with Ctrl - Z and then E . Saving the minicom settings with Ctrl - Z and then O . Select 'Save setup as dfl.' or 'Save setup as' . If you select 'Save setup as' , use the name .minirc.dfl . This file will be saved in your home directory and used by minicom when running under your user. I sometimes find that this does not work when saving to the global defaults file. You may have to manually add/edit this file. See this page for the location of the global minicom config file on your system. You can add/edit the .minirc.dfl file in your home directory if you just want...
Full answer by jfowkes: https://superuser.stackexchange.com/a/1821513 (CC BY-SA 4.0).
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