I have a request for a product with non-volitale memory. The problem is every time they unplug their product they loose all of their preprogrammed setpoints. The PIC microcontroller is powered by a switching 5Volt power supply (on the board) then to a voltage regulator. If I were to put a +5 volt battery in parallel with the PIC microcontroller would that do the trick ? If so what battery would you suggest?
T
T