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Topic: Arduino Uno R2 (USB device not recognized) (Read 727 times) previous topic - next topic


Dec 29, 2012, 06:50 pm Last Edit: Dec 29, 2012, 11:00 pm by youssefaly97 Reason: 1
I left my arduino for a while then when I came to connect it to the computer it says "USB device not recognized" so I thought the problem is with the pc then I connected it with the laptop it said the same. I think the arduino's atmega8 (responsible for usb to serial) got it's code damaged or has burnt out because the L13 led flickers when I reset the main atmega328 so its not the main chip. I also can't find the code for this atmega8 can anyone post it please ? windows7,uno R2,windows xp (laptop), arduino worked before on both machines. PLEASE HELP ASAP, THANK YOU.

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