What Makes Your Controller So Smart

Where does the "smart" in a smart controller come from? Smart comes from sensors, in all varieties. With the goal of automatically watering plants according to their need in a world where weather conditions change constantly, sensors must play a central role in making decisions about when and how much to irrigate. If you believe in the old "garbage in, garbage out" philosophy, a close look at how sensors are used in any smart control system becomes paramount. There are four things that must be taken into consideration: what is being measured, sensor quality, sensor maintenance, and sensor installation. Getting all four of these right presents obstacles that are easily overcome by utilizing an ET Weather Station that is shared with the community. Before we discuss the details of success with sensors, and the value of sharing weather data with the community, a brief discussion of Evapotranspiration (ET) is necessary.

 


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