Alan G4ZFQ wrote:
I suspect John needs to tell us whether he obeyed
"2) Program only the provided .hex file (see above); do not change the Fuse settings, or other memories (e.g. EEPROM)"
Simon,
Sorry, I did not realise they are your instructions.
I do not use Averdudess but I see you have EEPROM "Write" ticked on your illustration.
But maybe that does not matter as nothing below is ticked?
73 Alan G4ZFQ