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All Journal Media Elektrik Energy Insights
Haripuddin Haripuddin
Universitas Negeri Makassar, Indonesia
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Development of Prototype of Arduino-Based Automatic Ablution Faucet to Save Water Usage Al Imran; Firdaus Firdaus; Haripuddin Haripuddin; Abdillah Jamil
Jurnal Media Elektrik Vol. 23 No. 1 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v23i1.9790

Abstract

This study aims to develop and evaluate an Arduino-based automatic ablution faucet designed to reduce water consumption through proximity sensing and real-time water-flow monitoring. Using an engineering research approach with a prototype development model, the system was constructed using an Arduino Uno microcontroller, a proximity sensor, and a water-flow sensor, followed by direct testing and usability evaluation involving 30 respondents. Functionality assessment was conducted by experts using the ISO 25010 framework, while usability testing employed a Likert-scale questionnaire. The results show that the automatic faucet successfully regulated water flow based on user presence and displayed real-time water usage on an LCD. Comparative testing between manual and automatic faucets demonstrated a 44.03% reduction in water consumption, with the prototype achieving 100% functionality and an 87.8% usability score, indicating that the system is operationally reliable, accurate, and user-friendly. Sensor calibration produced an average error rate of 1.2%, which falls within acceptable tolerance limits. The novelty of this research lies in its integration of dual-sensor technology, quantitative water-efficiency measurement, and ISO 25010-based quality evaluation within a single prototype framework an approach not commonly adopted in previous studies on ablution automation. The incorporation of real-time water monitoring also enhances the system’s practicality and contributes to technological advancements in water conservation and electrical engineering applications.
Electrical Energy Audit at The Syekh Yusuf Regional Hospital Gowa Regency Nur Fadilah Iswan; Zulhajji Zulhajji; Haripuddin Haripuddin
Energy Insights Vol. 1 No. 1 (2025): Energy Insights
Publisher : Teknik Elektro, Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/ei.v1i1.9450

Abstract

This study aims to determine: (1) the amount of electricity consumption in the laboratory building, radiology building, and blood transfusion unit building. (2) the results of energy audits in the laboratory building, radiology building, and blood transfusion unit building at the Syekh Yusuf Regional General Hospital, Gowa Regency and to analyze energy saving opportunities that can be applied to the building. This study uses a quantitative descriptive method. The data collection techniques used are documentation, observation and measurement. In this study, the researcher analyzed the data descriptively and provided a general description of the electricity Energy Consumption Intensity (IKE) using statistical analysis techniques. The results of this study indicate (1) the large consumption of electrical energy in the 197,000 VA laboratory building with an average IKE value in the building of 55.325 kWh/m2, the 41,500 VA radiology building with an average IKE value in the building of 50.3187 kWh/m2, and in the 23,000VA blood transfusion unit building with an average IKE value in the building of 176.02 kWh/m2. (2) As well as knowing the results of the energy audit in the laboratory building, the load that uses the most electrical energy is 1 PK AC 3,097.6 kWh, in the radiology building which uses the largest electrical energy is 1,536 kWh, and in the blood transfusion unit building which uses the largest electrical energy is 176.64 kWh. Based on the analysis of electrical energy opportunities at the Syekh Yusuf Regional General Hospital, Gowa Regency, three saving efforts were obtained, namely no-cost, low-cost, and high-cost opportunities.
Utilization of Solar Electrical Energy in Water Faucets Using Ping Sensors Andi Asraf; Haripuddin Haripuddin; Al Imran
Energy Insights Vol. 1 No. 2 (2026): Energy Insights
Publisher : Teknik Elektro, Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/ei.v1i2.12073

Abstract

This study aimed to determine the amount of electrical energy required to charge the battery to run the water pump, to determine the test results of the sink device using a ping sensor, and to determine the response of users from the school regarding the use of solar power on the sink. The research method used in this study is an experiment, which provides the most stringent hypothesis testing compared to other types of research. The results of this study are as follows: on the first and third days, when the pump was not on, the power generated to charge the battery was 39 and 61 Wh, respectively, indicating that the solar panel could charge the battery. On the second and fourth days, when the water pump filled the tank, the power generated was 37.7 Wh and 32.7 Wh, respectively, indicating that on the second day of the efficiency test, the solar panel produced maximum power compared to the fourth day of testing, which could charge the battery to turn on the water pump for 2.4 h. The ping sensor was declared successful and could work when it detected an object or hand according to the settings in the program script on the Arduino Uno, namely, the solenoid valve would be active when the distance detected by the sensor was less than 15 cm and released water within 0.1 s. The user's response from the school regarding the use of electrical energy was obtained using the questionnaire that has been given. The use of electrical energy in the sink was considered very good, with an average respondent score of > 4.2. This study is expected to be useful for schools to maintain the availability of water and the culture of handwashing.
Co-Authors Abdillah Jamil Al Imran Andi Asraf Firdaus Firdaus Nur Fadilah Iswan Zulhajji Zulhajji