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When I use arduino uno CH340 USB driver ,the problem of file upload appears even though the driver shows that it has been plugged in.I m on windows 11 all the drivers has been updated
Error:
avrdude: ser_open(): can’t set com-state for COMn”An error occurred while uploading the sketch
avrdude: ser_open(): can’t set com-state for “\.COM3”
Answer ( 1 )
This can be solved easily done through with help of library CH340 USB driver.