thomas luken asked 4 years ago
when attempting to upload get
could not open port'COM14':Permission Error(13,'Access is denied,',None,5)
changed cable, restarted etc all without success
com port 14 shows working in device manager.
any suggestions?
Rui Santos Staff answered 4 years ago
Hello Thomas
If you get that message (or a similar message as below):
>>> Select Serial Port could not open port 'COM4': FileNotFoundError(2, 'The system cannot find the file specified.', None, 2)
Or an equivalent message:
>>> could not open port 'COM4': PermissionError(13, 'A device attached to the system is not functioning.', None, 31)
Unplug, and plug back your ESP board. Then, double-check that you’ve selected the right serial port in the Tools > Serial menu. Then, click the “Connect/disconnect” button to establish a serial communication. You should now be able to upload a new script or re-run new code.
This error might also mean that you have your serial port being used in another program (like a serial terminal or in the Arduino IDE). Double-check that you’ve closed all the programs that might be establishing a serial communication with your ESP board. Then, unplug and plug back your ESP board.
Finally, restart the uPyCraft IDE – try to select the serial port in the Tools > Serial menu.