sepp01:
BUT in the serial output i get
***failed;
avrdude: WARNING: invalid value for unused bits in fuse "efuse", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xfd instead of 0x05 (double check with your datasheet first).what i do wrong?
Nothing. That warning is correct and expected. It does not indicate any problem at all. Just ignore it.