aarg:
I think you can do moisture sensing by measuring capacitance. Then you don't have to expose metals to the soil.
But doesn't something metallic still have to be in contact with the soil to measure capacitance?
aarg:
I think you can do moisture sensing by measuring capacitance. Then you don't have to expose metals to the soil.
But doesn't something metallic still have to be in contact with the soil to measure capacitance?