Monitoring and Control of Nutrient Feed and Environmental Condition of Hydroponic Vegetable Plants

The expansion of residential zones and a surge in agricultural land evictions to make room for building construction, offices, and shopping centers are on the rise. As farmland shrinks, one mitigation strategy involves exploring alternative planting methods, like hydroponics. Hydroponic growing media eliminate the necessity for soil as the primary medium for plant growth. Hydroponic farming relies on high-quality water nutrients to sustain fertility. Therefore, monitoring and controlling water quality continuously is crucial, ideally in real-time and through automated processes whenever feasible. This study advances automatic water quality control by employing an Arduino Mega microcontroller alongside a range of sensors. The displayed data represent measurements taken by the sensor, which will subsequently inform actuator control commands. The processed data will also be transmitted to the Wi-Fi module (and sent to a smartphone device) for monitoring purposes. Testing includes response-time tests for each sensor, disturbance test, and field test. The system performed the automation process as intended.