https://circuitdigest.com/microcontroller-projects/arduino-oscilloscope-code-circuit

With pip installed, we can now install the other libraries we need.

Open the command prompt for windows users, terminal for linux users and enter the following;

pip install pyserial

With this done, install matplotlib using;

pip install matplotlib
 

Drawnow is sometimes installed alongside matplotlib but just to be sure, run;

pip install drawnow