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linux access to serial port / access to tty connection for example a switch
programs to use on ubuntu:
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- screen
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- screen is often preinstalled, ready to be used
- example: screen /dev/ttyUSB0 115200
- example: screen /dev/ttyACM0 1152000
- you can leave the screen session by pressing: <strg> + <a> + <d>
- you can turn back to your screen session by running: screen -r
- see all screen sessions: screen -list
- if you have multiple screen sessions, choose one by: screen -r <SessionNumber | SessionName >
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- minicom
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- with menu, standard serial program since many years
- apt-get install minicom
- setup: minicom -s
- in configuration mode, you need to setup the tty path for example /dev/ttyACM0
- Exit minicom (reset line): <strg>+<a> -> X
- Exit minicom without reset: <strg>+<a> -> Q
- minicom help: <strg>+<a> -> Z
--- hints ---
- how to find the serial adapter? dmesg |grep tty computer2know :: thank you for your visit :: have a nice day :: © 2026