Change variables in Arduino sketch using Matlab GUI

Hello everyone,

I'm currently working on a project that requires to build a Graphical User Interface. This GUI is design to have multiple push buttons and to generate real-time plot using the data obtained from load cell force sensor connected to the Arduino UNO. One feature of my project has a buzzer, whose sound frequency gets higher and higher as the real-time force reading gets closer to the threshold set by the user. That being said, GUI is required to allow users to input desired force threshold. This can easily be done in Arduino sketch, but this requires user to open Arduino sketch and manually change the threshold value. Is there a way for me to program MATLAB GUI so that the user can just change the threshold in the simplest manner without opening Ardui sketch every time?

[youssef ayman]

please i have the same issue, any one managed to find how?