International Journal of Research Studies in Educational Technology
Divine Word College of San Jose Special Issue
Volume 10, Issue Number 1
Available Online: 2 April 2026
Author/s:
Duca, Gian Marvin S.*
Divine Word College of San Jose, Philippines (gianmarvinduca@gmail.com)
Tan, Cassandra
Alvarado, Christine Joy E.
Panugao, Aleina Denise M.
Lagmay, Nicole A.
Diwa, Saveena Marie C.
Pionelo, Emmanuel Rey C.
Bautista, Josephine N.
Galay-Limos, Jenny A.
Rodil, Maria Victoria B.
Abstract:
This study presents the development and implementation of a Hybrid Solar-Hydro Charging System using Arduino Uno R3 and ESP32, aimed at providing a stable and sustainable power source for small electronic devices. Using a true experimental research design, the system was developed and tested with components such as a solar panel, dynamo, MPPT solar controller, MPPT module, motor battery, voltage sensor, OLED display, jumper wires, and socket outlet. The Arduino Uno R3 controlled voltage regulation via the voltage sensor and the distribution of power between solar and hydro sources. At the same time, the ESP32 enabled wireless monitoring through the Blynk application for real-time data tracking. The researchers participated in the evaluation by testing the charging system with low-power devices and making observations to assess its effectiveness and usability. Results indicate that the hybrid system produced a more stable and efficient voltage output than single-source setups, particularly under varying sunlight and water-flow conditions. The findings demonstrate the system’s potential to provide clean and reliable energy in tropical environments with alternating sunny and rainy seasons. Recommendations for future researchers include improving the durability of the dynamo system, conducting long-term testing under varying weather conditions, enhancing battery storage capacity, and expanding the prototype for broader community use. This study advances affordable, localized renewable energy solutions through innovative hybrid technology.
Keywords: Arduino Uno R3, charging system, clean energy, ESP32, hybrid energy, hydro energy, solar energy, voltage output
DOI: https://doi.org/10.5861/ijrset.2026.26007
Cite this article:
Duca, G. M. S., Tan, C., Alvarado, C. J. E., Panugao, A. D. M., Lagmay, N. A., Diwa, S. M. C., Pionelo, E. R. C., Bautista, J. N., Galay-Limos, J. A., & Rodil, M. V. B. (2026). Hybrid solar-hydro charging system using Arduino Uno R3 and ESP32. International Journal of Research Studies in Educational Technology, 10(1), 95-105. https://doi.org/10.5861/ijrset.2026.26007
* Corresponding Author