Rancang Bangun Pengaturan Waktu Pemberian Cairan dan pH Secara Otomatis pada Tanaman Hidroponik dengan Menggunakan Sumber Energi Listrik Tenaga Surya

Abstract

The pH level of the nutrient water in hydroponic plants is very crucial for plant growth. Changes in the nutrient water pH that are less or more than the set value can damage the plants. Automatic timing of liquid and pH supply in hydroponic plants needs to be done to maintain pH stability and improve plant growth quality. This research discusses the design and development of automatic timing of liquid and pH supply in hydroponic plants using solar power as the energy source. From the results of this study, the use of Arduino Uno as a pH control device using a pH sensor obtained a stable nutrient pH value and produced satisfactory red spinach plants with an average weight of 132.83 g and an average length of 45.33 cm. The pH value tends to be acidic at night and alkaline during the day. From the results of the solar panel research, the average power generated is 3.27 watts.