Temperature Sensor

• Question: How long of a power cutoff can your refridgerator tolerate before your milk gets spoiled?
• This is the exact question we are trying to answer using the program written in this repository.
• According to the American Dairy Association of the Northeast, ideal temperature for Storing Milk is 30-40 degrees F.
• The idea is to use a Temparature sensor and measure the slope of increase in Temperature for 15 minutes.
• Then we extrapolate the curve to find out the amount of time after which fridge temperature crosses 40 degrees Fahrenheit.

Newton's Law of Cooling

• According to Newton's Law of Cooling, for an object with Temperature cooler than the ambient/enviornment/room temperature the change in Temperature as a function of time can be given by:

$$T(t) = T_a - Ce^{-kt}$$

• where Ta is the ambient/room temperature
• C, k and e are constants and
• t is time