SISTEM KENDALI POMPA AIR TENAGA SURYA BERBASIS IoT

Hilmy, Dzaky Fadli Atha and , Aris Budiman, S.T., M.T. (2026) SISTEM KENDALI POMPA AIR TENAGA SURYA BERBASIS IoT. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Indonesia is endowed with abundant solar irradiation potential; however, its utilization within the small-scale agricultural and household sectors remains suboptimal. Conventional irrigation systems, which depend entirely on the state electricity grid and rely on manual operation, frequently lead to water wastage, energy inefficiency, and the risk of crop failure, as farmers are unable to monitor field conditions directly and continuously. This study aims to construct and evaluate a prototype of an IoT-integrated Solar-Powered Water Pump Control System, specifically engineered to perform two functions simultaneously: regulating water supply to the planting media (precision irrigation) and controlling the ambient temperature surrounding the crops through a mist cooling mode, particularly for high-value horticultural commodities such as grapes cultivated in greenhouses. The system integrates a 50 Wp solar panel, a PWM-type Solar Charge Controller (SCC), a 12V lead-acid battery, a low-power ESP32 microcontroller, a capacitive soil moisture sensor, a DHT22 air temperature and humidity sensor, a relay module, a 12 V DC water pump, and the Blynk IoT platform as a remote control interface. Irrigation scheduling is implemented adaptively by utilizing time references obtained through the Network Time Protocol (NTP) to distinguish between daytime and nighttime periods. This schedule is subsequently verified through data from the capacitive soil moisture sensor before the pump relay is activated in a pulse cycle mode. On the other hand, the DHT22 sensor serves a dual role: acting as a trigger for the misting pump (cooling unit) when the temperature exceeds the optimal threshold, while simultaneously functioning as an early warning signal generator that activates a buzzer and delivers push notifications to the Blynk application. Based on the experimental results, the prototype demonstrates a high level of response accuracy to critical conditions. It has proven capable of minimizing water consumption by canceling irrigation cycles when the growing media remains moist, while also delivering emergency notifications to users with data transmission latency remaining within operational tolerance limits. Overall, based on the results of the trial the prototype proved successful in performing automatic and consistent irrigation and misting control in accordance with the designed logic, with DHT22 and soil moisture sensor, and INA219 voltage sensor readings remaining within acceptable tolerance (maximum temperature error of 1.66% and maximum RH error of 6.79%), and maximum INA219 voltage error of 0.23%), supported by an average solar panel power output of 21.8 W and a total load power consumption of 30.09 W.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	ESP32, IoT Blynk, soil moisture, irrigation automation, solar energy.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK02 High Voltage
Divisions:	Fakultas Teknik > S1 Teknik Elektro
Depositing User:	DZAKY FADLI ATHA HILMY
Date Deposited:	13 Aug 2026 03:29
Last Modified:	13 Aug 2026 03:29
URI:	http://eprints.ums.ac.id/id/eprint/147378

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