How do I bring Arduino UNO serial monitor data into MATLAB?

I've been trying to take arduino uno serial monitor data and bring into into MATLAB code, but any questions online I found to help don't seem to work for mine, as I usually just get "MATLAB connection to Uno at COM3 exists in your workspace. To create a new connection, clear the existing object." when I try to pull in any data.

So far, all I can do that works is;

a = arduino('COM3','UNO');

which sets up an array in the workspace detailing all the pins it can read. I need it to print values for the A2 and A4 pins simultaneously!

Anyone have any ideas?

[Victoria Smith]

These are the values I have printed in arduino, and I need MATLAB to recieve the 1st and 3rd printed values

Serial.print(WindSpeed); Serial.print("\t\t");

Serial.print(getKnots(WindSpeed)); Serial.print("\t");

Serial.print(CalDirection);

Answer 1

[Aditya Shah]

Hi!

Please refer to the following documentations for more information about reading streaming data from Arduino using serial communication:

• This document explains how to enable callbacks to read streaming ASCII terminated data from Arduino® Due using the serial port interface.

https://www.mathworks.com/help/instrument/read-streaming-data-from-arduino.html

• This document explains how to use serial communication to monitor live data from Arduino Uno in MATLAB/Simulink.

https://www.mathworks.com/matlabcentral/fileexchange/46775-arduino-serial-data-acquisition