Design of a hydroponic monitoring system with deep flow technique (DFT)

Hydroponics is transformation or water management which is used as a support to grow plants and where the roots of plants absorb the necessary nutrients. Hydroponic farming is very suitable to be developed in urban areas where the land is narrow enough to allow planting. Plants grown in hydroponics as well as conventional plants need adequate nutrition in terms of quantity and type. The purpose of this study is the creation of a realtime hydroponic monitoring system and the design of a cellular application as a display to show the results of monitoring. Among the parameters that must be taken into account are pH, TDS, EC, and temperature. The parameter value is sent to the Blynk application via an Internet connection. Parameter data can be monitored in real-time via the Blynk application and stored on a micro-SD card in tabular form. This device successfully measures pH, TDS, EC, solution temperature, temperature, and humidity, as well as the height of the solution with a level of accuracy of±5.83%. This device can connect to the Blynk application and send parameter values to the Blynk application and display it on the device’s LCD screen. Besides, this unit can control the solution pump and spray pump with automatic adjustments. The use of this device makes it possible to monitor the quality of a hydroponic solution and to control the pump continuously so that the hydroponic owner knows the condition of the hydroponic system.