This semester we are working with ESP8266 at school. As I was doing the weekly task, I run into this problem:
While the code is uploading to the ESP8266, and the Serial monitor is open I got this error:
'COM4': PermissionError(13, 'Access is denied.', None, 5)
From googling this I found out this problem occurs when two things want to use the same port. My stupid basic solution to this problem would be to switch the ESP8266 or the Serial monitor to two different port. How can I do this?
If the full error log would be helpful, I attached it as jpg