From the Atmega 382 manufacturer, the data retention is 20 years at 85ºC and 100 years at 25ºC! There is no problem, only check your hardware.I m starting a project with Arduino board. I am expecting the board to continuously run for 3 months.
Do you think board can stand that long.
I dont see any reason why it should not. Just want to get it confirmed
thanks
jis