I understand that you are encountering issues with arduino disconnecting or not being recognized properly by MATLAB after an initial connection attempt.. Here are a few suggestions to help troubleshoot and resolve the issue:
Check Physical Connections:
- Ensure the USB cable is securely connected to both the Arduino and the device.
- Try using a different USB cable or port if possible.
Check Device Manager (Windows) or System Information (Mac):
- On Windows, open Device Manager and look for the "Ports (COM & LPT)" section. Check if your Arduino appears there and if any warning icons are displayed.
- On Mac, open System Information and check under "USB" to see if the Arduino is listed.
- If the device appears with a warning or not at all, it might be a driver issue.
Use serialport in MATLAB:
- Since "instrfind" is deprecated, consider using the "serialport" function for managing serial connections.
% Create a serial port object
s = serialport("COM3", 9600); % Replace 9600 with your baud rate
I hope this helps.
