This forum is so large now that finding answers is difficult, therefore I ask a question that has probably been asked before.
Blink sketch uploads to UNO through Linux, runs fine (Windows gives me a sync error). I unplug the UNO, (USB) plug in again and LED 13 blinks 4 times in rapid succession, repeatedly. Blink sketch is gone. Tried running off 9v, as I have done before, same thing. Reloaded the sketch several times with same results. I burned the bootloader on this chip yesterday using Adafruit's shield, everything showed ok. Is my board fried? No ATMEGA 328p's work. (tried 4)
Thanks,
Jim
I will try another board, but I am curious as to what I have done to make this happen? My other boards have never done this, and I don't want to go destroying things anymore... although that can be fun, too ]