How many times have you driven past a home or business to see the sprinkler system turned on while it's raining? Most sprinkler systems turn on automatically, whether the lawn/garden needs water or not. This system would have a sensor to determine moisture levels in the soil to turn on/off only as water is needed. It could be further developed to be able to program via computer to water specific spots in a gardern vs. other parts of the garden based on the moisture levels needed for the plants in that part of the garden.
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