I have been using several months my Arduino UNO Board without problems. However since a few weeks ago it doesn’t work alone. I mean if I connect it to the computer I can upload sketchs and the program is executing properly but if I unplug it from the computer and I power it as normal the program never starts. The “L” Led blinks twice very quickly, keeps off for a short time and blinks again… it looks like without soul. Like whether it wouldn’t have enough energy to work without computer, like is dying, I don’t really know.
I have tried burning the bootloader again but no positive results.
Please, any ideas. Likely I will have to buy a new ATMega328 chip.
Thanks a lot.