Twenty years ago I was approached by a vending machine company that wanted to remotely monitor and record the temperature of their vending machine compartments to the nearest tenth of a degree. I understand that no one wants a warm soda, but the data the company wanted to record was more granular than necessary to solve their problem. The vending machine only needed to communicate whether it was above or below the recommended serving temperature of 38℉; measuring to the nearest tenth of a degree was overkill

Internet of Things