25-03-2017, 02:35
(24-03-2017, 00:34)Palmyweather Wrote: It will be interesting to see how accurate the results will be. I have been looking at the Arduino components Speedy68 listed in his post above myself; mostly because of the price point.
With those type of devices, the better you could expect is to have a representation of the amount of water in the soil, not properly the volumetric water content. Condutivity of the soil is not linear with water content, and also depends of the type of soil, salinity etc... I'm not the guy to talk about this, but believe me, this matter is complex.
When I was developing the Soil / Leaf interface, I learned something about it with our tester / developer JT118.