arduino nano-avrdude: ser_open():system can't

问题:

I am working with arduino nano.

avrdude: ser_open():system can't open device "\.\COM1":the system cannot find the file specified

This error appears just after uploading the program on the arduino board. I have checked my port in my device manager, it says com11 and in the arduino software as well com11 is selected. I have arduino nano board selected in my arduino software. Also there mustn't be any specification error while downloading the software file. Is there anything that i am missing?? Please help!! I am unable to solve this error.

回答1:

I know this is an old post, but this is how I solved the problem. In device manager you will find the Arduino COM port.

Go to the Advance properties of the port

Set the COM port number to COM1

Then replug the USB.

回答2:

Instead of changing the COM port in Device manager, if you're using the Arduino software, I had to set the port in Tools > Port menu.

回答3:

My issue was due to what physical USB female port I plugged the Arduino cable into on my D-Link DUB-H7 (USB hub) on Windows 10. I had my Arduino plugged into one of the two ports way on the right (in the image below). The USB cable fit, and it powers the Arduino fine, but the Arduino wasn't seeing the port for some reason.

Windows does not recognize these two ports. Any of the other ports are fair game. In my case, the Tools > Port menu was grayed out. In this scenario, the "Ports" section in the object explorer was hidden. So to show the hidden devices, I chose View > show hidden. COM1 was what showed up originally. When I changed it to COM3, it didn't work.

There are many places where the COM port can be configured.

Windows > Control Panel > Device Manager > Ports > right click Arduino > Properties > Port Settings > Advanced > COM Port Number: [choose port]

Windows > Start Menu > Arduino > Tools > Ports > [choose port]

Windows > Start Menu > Arduino > File > Preferences > @ very bottom, there is a label named "More preferences can be edited directly in the file".

C:\Users{user name}\AppData\Local\Arduino15\preferences.txt

target_package = arduino
target_platform = avr
board = uno
software=ARDUINO
# Warn when data segment uses greater than this percentage
build.warn_data_percentage = 75

programmer = arduino:avrispmkii

upload.using = bootloader
upload.verify = true

serial.port=COM3
serial.databits=8
serial.stopbits=1
serial.parity=N
serial.debug_rate=9600

# I18 Preferences

# default chosen language (none for none)
editor.languages.current = 

The user preferences.txt overrides this one:

C:\Users{user name}\Desktop\avrdude.conf

... search for "com" ... "com1" is the default

回答4:

I was having this same issue this morning. When I checked my Device Manager, it showed COM4 properly, and when I checked in the Arduino IDE COM4 just wasn't an option. Only COM1 was listed.
I tried unplugging and plugging my Arduino in and out a couple more times and eventually COM4 showed up again in the IDE. I didn't have to change any settings.
Hopefully that helps somebody.

回答5:

Changing the port in Device Manager works for me. I was also able to fix it by finding the port that Arduino was using and then select it from the Adruion IDE from tools menu Tools>Port>Com Port