Can't Connect Blender to Arduino

[iegl3]

Python: Traceback (most recent call last): File "C:\Users\Us\AppData\Roaming\Blender Foundation\Blender\3.6\scripts\addons\MarIOnette v1_0_2.py", line 1253, in execute serialport = serial.Serial(scn.scn_prop.PortSelect, scn.scn_prop.BaudRate, timeout = 0.01) File "C:\Users\Us\AppData\Roaming\Python\Python310\site-packages\serial\serialwin32.py", line 33, in init super(Serial, self).init(*args, **kwargs) File "C:\Users\Us\AppData\Roaming\Python\Python310\site-packages\serial\serialutil.py", line 244, in init self.open() File "C:\Users\Us\AppData\Roaming\Python\Python310\site-packages\serial\serialwin32.py", line 64, in open raise SerialException("could not open port {!r}: {!r}".format(self.portstr, ctypes.WinError())) serial.serialutil.SerialException: could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5)

[knee-koh]

I've been able to test on blender versions up to 4.02 on Windows 10 and Mac M1, and have not seen this issue come up. Could you please update to MarIOnette 1.0.3 and re-install the add-on (opening Blender in Administrator mode if on Windows) and see if you still have problems?

[AustinRamby75]

I am having a similar issue. Just downloaded today. When Im in my initial setup, it can find the COM port just fine. However, when I synch and add it to my arduino, there are no options for Serial Port in Blender.

[knee-koh]

Are you getting the same error message as the first user? Your issue sounds like a Serial Port problem:

• Which Arduino are you using?
• How many serial ports does that Arduino have?
• Do you have a serial monitor open in the Arduino IDE, which could be blocking MarIOnette from seeing it?