Internet of Thing Based- Solar Powered Automatic Hydroponic System

Solar-powered hydroponic systems provide a sustainable agricultural solution by utilizing renewable energy and optimizing resources. However, traditional systems often lack adaptability, require excessive land and water, and struggle with efficient energy use. Key factors such as air quality, pH, dissolved oxygen, and temperature must be precisely managed, yet many systems lack comprehensive monitoring, leading to suboptimal yields. This research enhances plant growth in solar-powered hydroponic farming through a smart control system integrated with the Blynk smartphone app. It enables real-time monitoring of $\mathbf{p H}$, temperature, humidity, water level, voltage, and current, sending notifications for water levels and allowing remote control of the LED light and water pump to maintain optimal photosynthesis. Key parameters are displayed in the app, while air quality, temperature, humidity, and pH appear on an LCD screen. The system ensures ideal conditions: temperature $\left(24^{\circ} \mathrm{C}-32^{\circ} \mathrm{C}\right)$, humidity ($60 \%-80 \% \mathrm{RH}$), and $\mathbf{p H}(5.5-7)$. The water level sensor triggers alerts for low levels. A $20 \mathrm{~W}, 18 \mathrm{~V}$ solar panel powers the system at 12 V with a current below 1 A. By integrating IoT technology, this solution enhances efficiency, optimizes resource use, and improves hydroponic farming sustainability.