I’ll add bulk EC when I layout a single board for all these sensors. Bulk EC when combined with the dielectric constant of the rockwool cube can supposed be used to calculate pore EC(= to EC of drain water).
These data point can be used to measure water uptake by the plant when combined with room humidity, water flow data, etc.Any missing water becomes plant tissue. Whether we can accurately predict yields will be seen.
The wifi controller even supports video and low cost RFID reader.