I am making a soil moisture sensor , I had a spare DHT11 , so I attached that too, I am wondering that soil will get drier faster if the rate of evaporation is high , is it possible to calculate the rate of evaporation when if we know the temperature/humidity and what else will be required ?
Could you take a section of the soil you want to measure and build a pan that has a load sensor under it and record the weight loss over different time intervals?
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