In order for matplotlib to plot live data in python from the arduino, we need to install one more library. This video shows step-by-step instructions on how to install drawnow using PIP. If you have not installed PIP yet, there are instructions for this at my web site www.toptechboy.com, Arduino with Python LESSON 6. With PIP, installation of drawnow is very easy.
I am Paul McWhorter from toptechboy.com and I will be putting together a series of tutorials on use of the Arduino microcontroller.