How to fix error avrdude: ser_open(): can’t set com-state for “\. \COMx”
How to fix error “avrdude: ser_open(): can’t set com-state for “\. \COMx”. This error comes when we try to upload the sketch to a compatible Arduino board (clone), especially with an old bootloader using Arduino IDE 2.x (I use the 2.3.2 version) in Windows 11 OS. This board is usually equipped with USB driver CH340 … Read more