Go Down

Topic: Arduino Does Not Show Up Under Ports (Read 4006 times) previous topic - next topic

lrz22

I have Arduino Uno. I'm running Windows XP. I installed it with the Found New Hardware Wizard. I may've installed the wrong drivers, though - the fdti(or whatever sounds similar to that)and Arduino does not show up under ports.  Any suggestions?

Louis Davis

The UNO does not use the FTDI drivers.

Follow these installation tips:
http://arduino.cc/en/Guide/Windows#toc4

Let us know if you have any more problems.

lrz22

Thanks. I saw that link yesterday but I would need to *actually* be able to see arduino under ports to be able to participate in that link and the problem is I DON'T SEE ARDUINO UNDER PORTS. Plus if I put the wrong drivers in - I need to know how to remove them and put the right drivers in.

Louis Davis

Do you see an Unknown Device in Device Manager when you plug in the Arduino?
If so, follow the steps to install the driver on the Unknown Device.

If you don't see anything show up when you plug in the Arduino, then you should try a different USB cable and make sure you are not plugged into a USB hub.

lrz22

There are no unknown devices. I don't have a USB hub. The current USB cable must be doing something because the arduino lights up when it is plugged into the computer.

mellis

Does the Device Manager refresh if you connect the Arduino board when it's open?  If so, you should get some sort of device for it (that you could update the drivers for).  If not, you might try a different USB cable; it's possible that it's providing power but the connection isn't reliable enough for data communication.

lrz22

The Device Manager does refresh if I connect the Arduino Board  - I just tried it. But there is no obvious Arduino device under ports or anywhere else. And no generic device listed in the Device Manager. You have any suggestions as to what I would be looking for and where?

In Device Manager do you happen to have a new COM port showing up under Ports (COM & LPT)? Open up this tree before plugging in the card.

lrz22

I just did what you said - I opened up the tree before putting in the card and all I got was: Com1 and Lpt1. I use to get Com3 but I probably screwed it up by putting an arduino uno driver in it - how can I remove that? Any other ideas in terms of having Arduino show up in the device manager?

Louis Davis

Download the following utility that will help with troubleshooting your USB problems:
http://www.nirsoft.net/utils/usbdeview.zip

Execute the following command before connecting the Arduino to the system:
USBDeview.exe /stext before.txt

Then connect the Arduino to the system and execute this command:
USBDeview.exe /stext after.txt

Send both text files created to this thread. (before.txt and after.txt)

This will give a snapshot of all the USB devices on your system and their states. Hopefully this will point to the problem.

If you run the tool without any command line arguments, it will give you a GUI interface that will allow you to do all kind if things with USB devices. I find it a very useful tool for USB troubleshooting and development.

Go Up