• @[email protected]
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        fedilink
        31 year 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.

      • @[email protected]
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        fedilink
        31 year 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.