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I bought my Arduino Uno R3 a few months ago. It's been working like a charm since then, but today, it stopped interfacing with my computer. Let me be more specific. I have a 2013 Macbook Pro Retina with OS X 10.9 (Mavericks). It has the latest Arduino IDE installed.

I was using it today and after uploading a simple sketch (it worked for a little while) my Mac stopped recognizing it, and since, I haven't been able to access it. The LED connected to Pin 13 stays on 100% of the time. The RX/TX LEDs don't flash, but the main functions of my sketch (other than the serial functions).

Have I screwed my Arduino's Serial chip? What can I do? I am only 15, so another $30 is a little bit too much to spend to get another one.... :)

Thanks!!

UPDATE: I forgot to mention that I have tried my other Windows computer, and another cable, just to rule out those possibilities.

share|improve this question
    
what error do you have? avrdude() not responding? –  Sr.Richie Apr 14 at 15:42
    
Check your device manager. Sometimes It's virtual serial port name can be changed. In windows it becomes "COM4" from "COM3". So first of all you need to check if your computer can see serial port. –  Zgrkpnr Apr 14 at 18:30
    
I am seeing no real errors other than the following: –  jusbour Apr 15 at 0:31
    
I am seeing no real errors other than it asks to select a port. It isn't a member of the list. (Sorry about the other comment) –  jusbour Apr 15 at 0:41
    
@Zgrknr I tried that... it doesn't show up on either computer (Mac or Windows) in the port viewer. –  jusbour Apr 15 at 0:43
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