I am trying to connect to my Arduino Uno through Matlab 2012a. I have looked through the forums and can't seem to find anyone with quite this exact issue.
I have already successfully installed the drivers and confirmed an operational connection through COM4 using the Arduino IDE. Now, after installing the Arduino toolbox for Matlab, I get the following error:
Open failed: Port: COM4 is not available. Available ports: COM1, COM3. Use INSTRFIND to determine if other instrument objects are connected to the requested device. Error using arduino (line 83) Could not open port: COM4
I get the same error when tring to connect on my own without using the toolbox using 'serial' and 'fopen'. I ensured that the Arduino IDE is closed prior to attempting this, so that is not the issue.
Any assistance is much appreciated. Thanks!