I am trying to upload my first sketch to my Seeduino Nano using my Arduino 2.0 IDE. I have already associated the necessary website and downloaded the corresponding board library for the device. I am able to associate the correct board in the drop down menu. I read that it is best to associate it to a COM that is >=3, which I did.
My sketch compiles with no issue, but it will not upload. It says the following, “avrdude: ser_open(): can’t open device “\.\COM4”: Access is denied.”
I looked it up and saw that it was something to do with the COM being used for some other device, but I don’t for the life of me know what. I have previously used an Arduino Uno and a Seeed XIAO, both of which worked fine.
I have tried the following troubleshooting steps.
- Restart IDE
- Restart Computer
- Change to COM3 (only other COM available)
- Download another board package with other Seeed boards
- Change USB ports
It’s weird though, because when I setup my Seeed XIAO it automatically opened up a COM15, which I can’t even access if I try. That board works completely fine…