Problem Statement:

My chubby tubby hamster does not exercise enough. On average, a hamster runs 2-3 miles a day. Because hamster is nocturnal animal, she usually doesn't run on the wheel until I go asleep. In the day time, she runs occasionally, but because I spend most of my time in school I can't see her daytime activity either. To motivate her to get enough exercise, I want to design a reward mechanism that can automatically offer her treats when he runs over 2 miles a day, without me closely monitoring her activity.