Arduino Uno won't connect to computer - mac

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dweiss42
 
Posts: 2
Joined: Thu Apr 11, 2013 12:23 pm

Arduino Uno won't connect to computer - mac

Post by dweiss42 »

Hi,

I have a brand new Arduino Uno board from the Starter Kit.

The Arduino Uno isn't being recognized by my Mac. I have attached two screen shots.

Also, the device isn't displaying in the System Preferences -> network

The green on light is lit up and the yellow L light is lit-up .

I've reinstalled the Arduino software. I've restarted my computer.

Does anyone have any suggestions?

Thanks!
Attachments
Serial Port Options
Serial Port Options
Screen Shot 2013-04-11 at 11.27.39 AM.png (59.75 KiB) Viewed 2291 times
Serial Port Already in Use
Serial Port Already in Use
Screen Shot 2013-04-11 at 11.27.33 AM.png (72.3 KiB) Viewed 2291 times

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adafruit_support_mike
 
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Re: Arduino Uno won't connect to computer - mac

Post by adafruit_support_mike »

Fire up System Information and head down to the USB pane. Your UNO (when plugged in) should show up under an incredibly helpful name like 'Input Device' or something similar. If you aren't sure whether you're seeing it, unplug it, press CMD-R to refresh the hardware display, and look for anything that's changed.

Have you tried using a different USB cable? Sometimes the problem isn't the parts at either end, but the thing stretching between them.

dweiss42
 
Posts: 2
Joined: Thu Apr 11, 2013 12:23 pm

Re: Arduino Uno won't connect to computer - mac

Post by dweiss42 »

Thank you for the reply.

When the Arduino Uno is plugged in, a new device does show up. It is called ATmega16u2 DFU.

What do I do next?

Thanks
Attachments
Screen Shot 2013-04-12 at 2.02.33 PM.png
Screen Shot 2013-04-12 at 2.02.33 PM.png (69.91 KiB) Viewed 2232 times
Screen Shot 2013-04-12 at 2.02.20 PM.png
Screen Shot 2013-04-12 at 2.02.20 PM.png (69.52 KiB) Viewed 2232 times

adafruit
 
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Joined: Thu Apr 06, 2006 4:21 pm

Re: Arduino Uno won't connect to computer - mac

Post by adafruit »

Hmm looks like the serial converter chip is not working well. Easiest thing is to get you a new Arduino for now, email support@adafruit with a link to this thread and your order #

it *is* possible to repair the chip with a DFU burner if you need to get this running ASAP
http://forums.adafruit.com/viewtopic.php?f=25&t=25146

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