Native serial port, can't obtain info

Development Tools IDE 1.x
1

I have been trying to solve this "Native serial port, can't obtain info" issue that has cropped up. I am fairly new to Arduino, but have a decent handle on how things work.

My genuine Uno has decided to quit talking to the computer I normally use for these things (Win 7 64). Other than sitting unused for a few weeks I don't think anything has changed. I tried checking for driver updates and uninstalled and reloaded as well.

It lights the power and pin 13 LEDs as well as the computer making the connect tone when plugged in. It shows up in device manager as a Uno on Com 1 or 4 which ever is chosen. The correct board is selected in the IDE, but is does not state Uno next to the chosen com port.

The board connects to a Win 10 machine. I also have a Elegoo Mega 2560 that connects to the problem Win 7 machine.

There is nothing connected to the board to muck things up.

Any help would be appreciated.

Ross

2

On a windows machine the chances of it being COM 1 are slim to none.

In device manager under COM & LPT ports what happens when you plug it in.
That will be the correct port to choose in the IDE.

Once you select that port send either OF BARE MINIMUM or the BLINK examples to the board.

1 Like
3

I realize that. Plugging in the uno it typically shows up as Com 4 which is what is selected in the tools menu. I'd love to be able to reload Blink.

What I don't understand is how it worked previously on this machine, it works on another and the Mega works here.

Ross

4

Just by any chance are you using USB 2.0 or 3.0 as USB 3.0 or USB 3.0 equipped computers have on occasion been seen to cause problems.

5

USB 2.0. This is the same USB adapter that came with the starter kit and the same computer I have used since getting the Arduino.

Ross

6

Go to:

"Device Managers -> ports(COM & LPT)"

Right click on the port that is shown as Arduino. Click on "properties->port setting->advanced"

change the port from whatever it is to a free one. For example if it is 5, change it to 7 etc.

ok and try again.

hope it helps.

7

@mohamadol

That can cause just as many problems.
Randomly setting COM ports requires a greater understanding of them AND the Arduino than just changing the number.

It may on rare occasions work but more often than not will cause issues further down the line.
then the whole com stack would need to be reset.

Bob.

8

I just noticed my light was blinking upon plugging it in.

This might fix your issue, might not, but worth sharing.

click tools, click port, and make sure you selected USB Modem not bluetooth.

It fixed my issue.