Arduino UNO R3 not recognized in Windows OR Mac!!

Development Tools IDE 1.x
1

Hello All,

First and foremost, thank you for all the useful information posted throughout this forum. I've scoured this forum and online for solutions to my issue, but to no avail, so I'm pretty desperate at the moment.

Issue:

Windows: (windows 8.1 64 bit, asus republic of gamer laptop bought a couple of months ago)

After installing the IDE, I plug in my UNO R3 board into my computer. It is not recognized by my computer in the device manager at all, not under ports or any other categorization for my board. The power light is green, the yellow light near pin 13 blinks fairly quickly when first plugged in and then blinks every two to three seconds afterwards. This board is NOT a knock off Arduino as I purchased it through Arduino on Amazon.

Attempted solutions for windows

  • Reinstalled the IDE
  • Installed an older version of the IDE
  • Used different USB ports
  • Used different USB chords
  • Attempted to manually add the hardware to the device manager (the device was still not recognized)

Since none of the above worked, I thought it might just be my computer or the windows operating system, so I thought I might try my Macbook Air instead (it is 5 years old, has Mac OS X 10.7 and functions well)

Mac

After performing the steps mentioned above under the windows section (i.e. installing the most recent IDE, plugged in my board, similar light's shown, etc.), I was unable to find the board as it is normally listed on a Mac /dev/tty.......

I attempted similar solutions per above, excluding the manual add.

Please, if anyone has had any solutions to the above, I would be eternally grateful. Otherwise, I'm afraid that the board is a defect and I'll have to send it in :confused:

Thank you,

amettlin

2

There have been issues in the past with persons buying arduinos on amazon recieving a clone. If I remember correctly it was an issue with the way amazon stored their stock.

With that aside, can you let me know the usb-serial chip that is being used on your board. This is the component closest to the USB port. Give me this information and I will try my best to help.

3

amettlin:
Mac

After performing the steps mentioned above under the windows section (i.e. installing the most recent IDE, plugged in my board, similar light's shown, etc.), I was unable to find the board as it is normally listed on a Mac /dev/tty.......

The 1.6.4 IDE seems to show only the /dev/cu.usbmodemXXXX names and not the matching /dev/tty.usbmodemXXXX names. The 1.0.6 IDE displayed both and the names seem to be interchangeable. Do you get any /dev/cu.usbmodemXXXX names under Tools->Port when your Arduino is plugged in? If so, use it.
If not, run the System Information app (under Applications->Utilities) and look at the USB tree. If your Arduino shows up there the information about it might help in diagnosing the problem. If it doesn't show up there then something is wrong with the board's USB hardware, or the USB cable. Try a different cable.