I have been using the board couple of times before and the codes have successfully uploaded. I have initialized the arduino with matlab and thereafter when i try to upload a code in arduino ide it keeps giving the message, " problem uploading to board"
Arduino: 1.8.5 (Windows 10), Board: “Arduino/Genuino Uno”
Sketch uses 11484 bytes (35%) of program storage space. Maximum is 32256 bytes.
Global variables use 566 bytes (27%) of dynamic memory, leaving 1482 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can’t open device “\.\COM3”: Access is denied.
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.