@TomatoloverBoy, the pumps, lights, fans, AC are connected to smart plugs and our controller kindbot triggers irrigation for 20 seconds every 3 minutes over wifi.
We aren't using a sensor for ec or ppm but our controller is a credit card sized computer with a camera we use to read visual cues like people do and notify the grower.
We've upped the concentration to the recommended dosage for seedlings (1/4 tsp per gal. equal parts) because we noticed yellowing and Kindbot gave us a heads up.
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