Mike,
I have a problem with both v0.81 and v0.82 (haven't checked other versions). Theoretically MPGuino should save tank data to EEPROM to restore its previous state after power outage. I was testing recently standalone (not mounted in the car) MPGuino with signals feed from the generator. Anyway after I collected some data I needed to disconect it from the power. So I've waited for MPGuino to go into the sleep mode, it should save tank data then. But after connecting the power again all data was gone. I was trying to solve the issue on my own, but I'm still learning Arduino programming and I just don't have enough knowledge to find what can be wrong.
Can you help me with this issue? Any help will be appreciated