Hello World!
I have an Arduino Uno that is not showing up on the comport. The computer doesn't even make that noise to let you know "hey something new plugged in". I plugged it into 3 different computers, and it is not showing up. Power is still coming in. Nothing is physically wrong with board.
Any suggestions? Should I retire it?
Thank you
Are you sure that you are using a data cable rather than a charging cable with no data connections ?
Yes, I am using a data cable. It was working every day prior to today.
I would start by trying another, known good, cable
What is the project that you're working on when it started to fail?
The cable I am using is known good. I used that cable on a Mega, and the Mega appeared in the comport. I used a different cable, and that didn't work.
I2C scan then I tried a simple blink example and even that didn't work
into the trashcan... ESD can have destroyed it... You won't see anything weird, it is just not working..
Are you sure that your computer has the proper driver for the USB interface chip on your UNO?
Don
It does. I was using this particular board for a couple months. Everything the board needs is on my computer.
I've had similar issues with boards sometimes being recognised, and other times not being recognised; when the boards were in fact ok. Some things I have tried ...
Reinstall port drivers.
With the IDE running and board plugged in, go to Windows Device Manager.
Look under ports and 'uninstall' anything to do with Arduino. Be sure to tick the check box and 'delete' the drivers here as well.
Reboot the computer. Windows should reinstall the drivers when required.
Reinstall the IDE.
Try the board on a different computer and see how it works there.
Steve
I have had similar issues. It turned out that the USB cable was making intermittent contact making it not work some of the time.
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