I replaced the my Uno Rev3 chip do a new one. It came with a pre-loaded bootloader and a default sketch that blinks. I uploaded a new sketch and it runned pretty good. But, when I turn the Uno OFF and ON again, the sketch that runs is the default one (that blinks) instead of the new one. I looked f…

Changing UNO Rev3 chip from Atmega328-PU to Atmaga328P-PU

nickgammon October 22, 2012, 5:46am 2

I think that's a bootloader bug. Try uploading the Optiboot bootloader.

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