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some time ago i tried doing this with my original arduino uno r3. I guess i had to plug the power cables in wrong order(i think it's called reversing polarity) because my arduino stoped working. It turns on (the power diode is on) but i cannot upload any sketch on it. I'm thinking about changing the ATMega chip but, before i do that i want to be certain that it's the chip issue ,not the programmer. I have another arduino uno, and i heard that i can upload sketch with it to another uno. So my idea is, if i do this i will be able to say whether it's the programmer or the chip issue. The only problem is that i don't know how to do this and i wasn't able to find any reasonable tutorials online. Please tell me what to do. Many Thanks, Jan

  • Does the uno show up in the Device Manager? You could also have burned the ATMega16u2 that does the usb-to-serial. – Gerben Apr 29 '15 at 19:57
  • I think it does, i will check it when i'm back home. – Sackhorn Apr 30 '15 at 10:03
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The Arduino IDE ships with a built in ArduinoISP sketch, and there is a very detailed tutorial with wiring diagrams etc on the Arduino site.

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  • But doesn't it alow me only to burn a bootloader ? I would like to upload a simplest sketch (for example Blink) to check whether does the chip work. – Sackhorn Apr 29 '15 at 17:58
  • No, you can program anything you want with ISP. When you use a boot loader, you can only program the non-bootloader section, but the converse is not true. – microtherion Apr 29 '15 at 18:01

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