• monobot@lemmy.ml
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      11 months ago

      Why wouldn’t they? It just measures electrical resistance of the soil, less moisture means more resistance. Nice and simple.

      I have cheap one connected to arduino, and small water pump conected to it too. It works nicely.

      • LuckyBoy@lemmy.world
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        11 months ago

        The soil composition, minerals and nutrients can change the eletrical resistance. Thats what i read somewhere.

    • mertn@lemmy.world
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      11 months ago

      Yes they work well. No batteries needed. They give clear indication of dry/moist/soggy. I was over-watering and killing plants before I bought one.