I'd like to control a "trickle hose" for my garden. All of the commercially available controls seems to work on a timer. But plants need to be watered when they are dry, not when the timer ticks.
Does anyone please know of a sensor that I can put into/onto the soil and will give a machine-readable moisture reading ?
Does anyone please know of a sensor that I can put into/onto the soil and will give a machine-readable moisture reading ?
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