Rizqy Hidayatullah, Yuslikha Al Mudhotin, Fitria Salsabilla, Nadi Suprapto, Eko Hariyono, Putri Lintang Utami
Hydroponics is a plant cultivation method that uses water media with dissolved nutrients. It is one of the solutions for farming on limited land. One system widely used in hydroponic farming is the Nutrient Film Technique (NFT) model. Solar panels provide an ideal solution by utilizing abundant solar energy to run sensors and other monitoring systems. Based on the problems or challenges commonly faced in this NFT model hydroponic system, a solar panel-powered hydroponic system design equipped with a nutrient control sensor was developed. The research method is designing and developing solar-powered hydroponics with a nutrient control system. The nutrient sensor is the TDS Meter, assisted by Arduino IDE software. The PPM level needed for lettuce plants is 560-840 PPM. When the plant nutrients are >560 PPM, the buzzer will sound; when the plant nutrients are following what is needed, the buzzer will turn off, and if the plant nutrients exceed the maximum limit, the buzzer will sound louder than the first situation. On the TDS meter sensor side, a sensor is obtained following the concentration of nutrients given to plants as measured using PPM (Parts Per Million) units on the TDS sensor. © 2025 Author(s).
Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Surabaya, 60321, Indonesia
