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Serial Port Communication in Linux using Minicom

First of all install minicom using

apt-get install minicom

or directly download the .deb package from https://packages.debian.org/sid/minicom and install it using

dpkg -i <package name>

After install type

minicom -s

to setup the minicom for using your serial port.
Select Serial Port Setup and type A to select serial device. It will be shown as

/dev/modem

replace modem with  your serial device. Press Enter twice to save. You can also setup boadrate and all those stuff in the Serial Port Setup. After that you can save your configurations. Select Save Setup as. Then type a name and press enter to save it.
If you wan't to open your configuration later, type

minicom <configuration name>

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