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Author Topic: UNO R3 NOT DETECTED ANY MORE  (Read 1461 times)
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MY UNO WAS WORKING GREAT .. BUT
SUDDENLY IT IS NOT RECOGNIZED BY MY PC...
I CHANGED MY CABLE , TRIED ON OTHER PC BUT NO COMPORT , OR NO "NEW DEVICE FOUND"

WHAT IS THE PROBLEM ?
 

Anirban sengupta
koolasg@live.in
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Portugal
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Does the LED on the Board lights up at least?
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Debian,Mint,Ubuntu
Arduino Mega 2560
Arduino Nano
Arduino Duemilanove
MAC OS Montain Lion
Raspberry PI Model B


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yea power LED is on. also
13  led is continuously on
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i m planing to buy ARDUINO DUE,
can i program UNO using DUE ??
bcoz due has many RX/TX pairs..









THANKS BUDDY IN ADVANCE
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LONDON UK
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swap out the 328 chip with another 328 chip with a  known good bootloader on it ,thats what i would do
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knuckles,
     Could you give a link to a 328 chip with a "known good bootloader on it"?  I'm having the same problem as koolasg.  All of a sudden my computer doesn't recognize my Uno Rev 3.
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Problem solved...I bought a new UNO and new cable and the computer recognized it.  A box popped up on the screen and asked if I wanted to use COM7...I said yes and it worked.
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WOOO. what ? i v to buy a new arduino ?

Then only it will work?

But! But What is the problem ?? with MY UNO ???

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the moon
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WOOO. what ? i v to buy a new arduino ?

Then only it will work?

But! But What is the problem ?? with MY UNO ???


Have you restarted your computer?
I had this happen to me last year, restarted my computer and it worked fine.
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theres  loads on ebay

http://www.ebay.co.uk/itm/3x-ATMEGA328P-PU-Arduino-UNO-R3-Bootloader-ATMEGA328-P-PU-Pico-power-Micro-/221153175158?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item337dc1a676

you can buy 1 2 3 or 6 or 10 units
i dont know where you are so use your nearest supplier
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