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Water pH Monitoring for Hydroponic Plant

Sense the water pH of a hydroponic plant with Arduino Nano 33 BLE Sense and determine if it’s right using an Edge Impulse trained model.

I’ve had a hydroponic plant for two years now, and everything went well until this summer. The new flowers, that were supposed to be pink, were green with a few shades of pink. So I searched on Google and I found out that the optimal water pH value for my plant is from 5.5 and 5.8. Well, guess what? I was using tap water for the plant and its pH is 7! So, I decided to buy a pH corrector solution and build my own system to monitor the pH of the water by exploiting the tiny machine learning.”

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