Have ur Jetson nano Development kit booted up

As a prerequisite, u must have Arduino IDE installed on ur Jetson nano Development kit

if u don't have it installed click this guide.

Step 1: Required Files Install

In a terminal enter, the following commands

$ sudo apt-get install python

$ sudo apt-get install python-serial

$ wget https://raw.githubusercontent.com/tbird20d/grabserial/master/grabserial grabserial

this should install all the required lib

Step 2: Find Port and Baud Rate (optional)

If u don't know your port value just open the serial monitor in your Arduino IDE

there u should see the port value in the top and the baud rate at the bottom of the window

Now we need to define the Baud rate and the port for the Arduino, to do this enter

$ nano grabserial

this should open the 'grabserial' file, in this file find the line that says ( images for reference )

1 - sd.port

2 - sd.baudrate

modify these to the port number of your Arduino and the baud rate the Arduino is running at

after the modification u can save and exit the file

to do so press " ctrl + x " and press '' y '' to conform and hit "enter"

just enter the command :

$ python grabserial

and u should be able to see the serial data on ur terminal