Arduino nano and Windows 11

Official Hardware Nano Family Classic Nano
1

I have installed Arduino IDE 2.3.2 and FTDI drivers but I still have no COM port.

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Is it possible to get this to work?

2

Maybe your nano has no FTDI chip but a CH340G?

3

Hi @rwb. You need to install the driver for the CH340 USB to serial bridge chip used by your Arduino board.

I'll provide instructions you can follow to do that:

  1. Click the following link to open the driver download page on the website of WCH (the manufacturer of the CH340 chip) in your web browser:
    http://www.wch-ic.com/downloads/CH341SER_EXE.html
  2. Click the button with the cloud and downward pointing arrow.
    A file download will start.
  3. Wait for the download to finish.
  4. Run the downloaded CH341SER.EXE file.
  5. If a Windows "User Account Control" dialog appears, click the "Yes" button.
    The "DriverSetup(X64)" dialog will open.
  6. Click the "INSTALL" button in the dialog.
  7. Wait for the driver installation to finish.
    A dialog will open with the message:

    Driver install success!

  8. Click the "OK" button in the dialog.
    The dialog will close.
  9. Click the X icon at the top right corner of the "DriverSetup(X64)" dialog.
    The dialog will close.

After that, the port of the CH340-based board should be listed under the Tools > Port menu in Arduino IDE when you connect the Arduino board to your computer with a USB cable.

5

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