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Muhammad Yusuf Mappeasse
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Media Elektrik
Published by Universitas Negeri Makassar
ISSN : 19071728     EISSN : 27219100     DOI : 10.59562/metrik
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Engineering
Publications in the areas of Electrical Engineering, Information and Computer Engineering, and Control include research articles and reviews of the literature.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 190 Documents
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IDENTIFICATION WATER LEVEL MONITORING SYSTEM AND PERSON DETECTION IN BATHROOM USING IOT CONNET APPLICATION Muliadi Muliadi
Jurnal Media Elektrik Vol. 22 No. 1 (2024): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i1.5940

Abstract

This Uncontrolled and excessive use of water can lead to the scarcity of clean water supplies, considering that the world's fresh water supply is only about 3%. An example of uncontrolled water use is when a tap user forgets to close the tap so this causes water waste. Therefore, a tool is needed that can solve these problems. This research aims to develop an IoT-based system that is able to monitor water levels and detect the presence of a person in the bathroom automatically to reduce water waste and increase user comfort. The system utilizes HC-SR04 ultrasonic sensors to measure the water level in the bathtub and PIR sensors to detect motion as an indicator of the presence of people. The data from the sensors is processed by the ESP32 microcontroller and forwarded to the IoT Connect application, which allows users to monitor the water volume and presence in the bathroom in real-time. The system also features a solenoid valve that automatically opens and closes the water flow according to the data from the sensor, as well as an LED as a visual indicator. Test results show that the system is able to accurately monitor water levels and detect the presence of a person, as well as provide automatic control of water flow to prevent wastage. With the integration of the IoT Connect app, the system offers a practical and innovative solution for bathroom water management.
APPLICATION OF XCEPTION ARCHITECTURE FOR DEEP LEARNING-BASED FINGERPRINT RECOGNITION Agus Andreansyah; Julian Supardi
Jurnal Media Elektrik Vol. 22 No. 1 (2024): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i1.5964

Abstract

This study proposes a convolutional neural network (CNN) method with an xception architecture model that is used to classify the types of fingerprint image patterns. The data used in this study uses data taken directly using a scanning tool made using FPM 10 A sensors and Arduino Uno. The dataset consists of five types of fingerprint image patterns, namely arch, ulnar loop, whorl, radial loop and twinted loop with a total of 1000 data. The research started from data collection, pre-processing, CNN architecture design, model training and evaluation. The application of the xception architecture shows the best performance with high test accuracy values, stable and consistent. The test scenario of this study is to compare different epoch values, namely 10.30 and 50 and use two learning rates, namely 0.0001 and 0.001. The best test results were obtained at epoch 30 with a learning rate of 0.0001, which was 92% and 93% at epoch 50 with a learning rate of 0.001.
AUTOMATIC CONTROL SYSTEM: AUTOMATIC WHEELCHAIR WITH INTUITIF SENSOR ELECTRONIC WHEEL DRIVE WITH ELECTROMYOGRAM DETECTION AND NAVIGATION ST. Khaeratul Mukarramah; Ariani Amri; Muh. Abdillah
Jurnal Media Elektrik Vol. 22 No. 1 (2024): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i1.5986

Abstract

This research aims to address the needs of individuals with tetraplegia, with the expectation that it can contribute to the development of automatic control systems and provide insights for the fields of healthcare and education. The control system in the wheelchair reads muscle contractions via electrodes attached to the muscles. These electrodes serve as muscle sensors. The muscle sensor data, often referred to as EMG, is 10-bit. The EMG sensor in the wheelchair shows that the wheelchair's movement is detected as moving forward when the data value generated by the EMG sensor reaches the minimum threshold of 589. The wheelchair moves forward when the Y-axis value is positive and moves backward when the Y-axis value is negative. The wheelchair will turn right or left when the X-axis value is positive or negative, respectively. Thus, when the X value is 20 and the Y value is 20, the wheelchair will move forward and turn right. The data collected by the IMU sensor can be wirelessly transmitted to an IoT (Internet of Things)-based system. This data can then be monitored through a browser on a laptop or PC, as well as through a smartphone.
DEVELOPMENT OF EARLY WARNING SYSTEM FOR 3-PHASE ELECTRIC MOTOR MALFUNCTION DETECTION BASED ON LORA Abdul Muis Mappalotteng; Muhammad Yusuf Mappeasse; Muhammad Irfan; Dewi Triantini
Jurnal Media Elektrik Vol. 22 No. 1 (2024): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i1.6195

Abstract

This study aimed to develop an early warning system for detecting malfunctions in three-phase electric motors using a LoRa-based microcontroller. Three-phase electric motors are vital components in industry, and their failure can cause significant downtime and financial losses. This system was designed to improve operational reliability and efficiency through remote monitoring and early detection of potential failures. Various sensors, including current, voltage, temperature, and RPM sensors, was installed on the motor to monitor its operational conditions. The collected data was sent via the LoRa network to the processing unit for further analysis and early warning. The study used Research and Development (R&D) approach with a prototyping development model, which included gathering requirements, designing, prototyping, and evaluating the system. Each stage was designed to ensure that the developed system can meet the expected operational and functional needs. It is expected that this system can prevent greater damage, reduce maintenance costs, and increase overall industrial productivity.
AUGMENTED REALITY MOBILE APPLICATION AS AN ANIMAL INTRODUCTION LEARNING MEDIA FOR ELEMENTARY SCHOOL STUDENTS WITH MENTALLY DISABLED Nanny Raras Setyoningrum; Hendi Setiawan; Danandjaya Saputra
Jurnal Media Elektrik Vol. 22 No. 1 (2024): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i1.6201

Abstract

Mental disability is a disorder in mental development that is usually characterized by a level of intelligence that is below the average of normal children, so mentally disabled children require a different learning approach because of their unique characteristics. The disability rate statistics for children aged 5-19 years is 3.3%. Meanwhile, the total population at that age (2021) is 66.6 million. Data from the Ministry of Education and Culture as of August 2021 states that the number of students attending SLB or inclusion schools is 269,398 children. The obstacle complained about by teachers in providing learning for children with special needs (with mentally disabled) is that teachers have difficulty delivering learning material because children with special needs find it difficult to understand what the teacher is conveying so they need help using effective and efficient learning media, for example learning media that uses augmented reality technology. This research aims to design a mobile-based application as a learning medium for animal recognition for mentally disabled students using augmented reality technology. This research method uses research and development research. The results of the research are an augmented reality application called ARAnimal which can visualize pets from two-dimensional images into 3D objects, besides that it can also provide a description of the animal's physical characteristics using audio. There is a quiz feature in the form of completing animal names and pairing animal names with types of pets or wild animals. With this application, student learning becomes interactive and interesting and helps teachers in delivering animal introduction material.
The DEVELOPMENT OF SAVONIUS VERTICAL-AXIS WIND TURBINE PROTOTYPE BASED ON MICROCONTROLLER Zulhajji, Zulhajji; Suhardi, Iwan; Sadri, Abdul Rijal
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.1263

Abstract

This research focuses on the development of a valid prototype of the Savonius vertical axis wind turbine model through a research and development (R&D) approach, using a modified Borg and Gall development model. The study introduces a functional prototype suitable for student learning in renewable energy courses, offering a simpler and more portable alternative to wind energy generation. Student responses showed a positive perception, with 53% stating that the Savonius wind turbine was suitable for the presentation. The results of the questionnaire showed an overall average score of 86%, which was categorized as "Very Appropriate". The turbine operates effectively at a minimum wind speed of 3.5 m/s, producing an average voltage of 10.28 V, a current of 10.46 mA, and an output power of 1 watt. Although relatively small, this power level is sufficient for small-scale applications, highlighting the prototype's ability to support devices with low power or simple lighting, as well as serving as a renewable energy education tool. Wind turbine performance analysis showed optimal results at an average wind speed of 3.88 – 4.84 m/s, a power coefficient (Cp) of 0.87, and a tip-speed ratio (TSR) of 0.82. This shows a direct correlation between the TSR and the power coefficient, which indicates efficient turbine performance.
ANALYSIS OF TRANSIENT OVERVOLTAGES DUE TO LIGHTNING SURGES AT 150KV MAKALE TANA TORAJA SUBSTATION Bayu Lopari, Argia; Zulhajji, Zulhajji; Tjandi, Yunus
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.4508

Abstract

Transient overvoltage is a phenomenon in the power system that can be caused by lightning or switching surges. These overvoltages have large amplitudes and short durations, potentially damaging equipment, especially the Circuit Breaker, leading to failure in power distribution. As such, analyzing transient overvoltage is critical for understanding its impact and for designing systems that can withstand such surges. This study investigates transient overvoltages at PT PLN (Persero) 150 kV Makale Tana Toraja Substation, calculating the highest possible transient overvoltage that could affect Circuit Breakers. The research employs a quantitative descriptive approach with an Ex-Post Facto design, using the lattice diagram method to analyze the transient overvoltage behavior. Findings reveal that the highest recorded transient overvoltage was 227.231 kV, with values decreasing as the distance from the lightning strike increases. Furthermore, calculations suggest that in the case of properly functioning arresters, transient overvoltage values at Circuit Breakers 1 and 2 are 512.33 kV and 542.514 kV, respectively. However, if the arresters are damaged, these values increase significantly to 1031.94 kV and 1028.814 kV. This study emphasizes the importance of maintaining functional lightning arresters to ensure protection system efficacy. By optimizing the design and operational parameters of protection equipment, this research contributes to strengthening the resilience of substations, ensuring the safety and reliability of critical infrastructure in areas prone to lightning strikes.
EVALUATION OF ROOFTOP SOLAR POWER PLANT (PLTS) WITH ON GRID SYSTEM (CASE STUDY AT SMKN 3 MAKASSAR) Yusuf Mappeasse, Muhammad; Suhardi Rahman, Edi; Mega Putri Pamuso , Noviola
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.4532

Abstract

This research is quantitative descriptive research that aims to determine the results of the evaluation of the PLTS system at SMKN 3 Makassar and also find out what factors affect the feasibility of this renewable energy power plant. Rooftop solar power plant with on-grid system is a system consisting of solar panels installed on the roof of a building that is directly connected to the PLN network, this system makes a building produce its own electricity from sunlight. This research uses documentation and observation methods carried out by direct observation of the PLTS distribution panel and also making observations on the conductor system and cross section. PLTS with polycrystalline type panels usually have an efficiency of around 13% to 16% and based on the results of this study, the lowest efficiency calculation results were obtained on Tuesday, 26 September 2023 operating hours 12.00 with a frequency of 50 Hz, light intensity of 915 W/m2, with a data value of 5773.1 kWh out and 41,450 kWh incoming power with a PLTS efficiency of 13%. Then the highest efficiency calculation occurred on Friday, 06 October 2023 with a frequency of 50 Hz, light intensity of 770 W/m2, with an outgoing data value of 5817.2 kWh and an incoming power of 20,000 kWh with a PLTS efficiency of 29%, therefore it can be concluded that the on-grid rooftop PLTS at SMKN 3 Makassar has a very good ability to convert solar energy into energy.
WEB-BASED ACCESS AND ATTENDANCE SYSTEM FOR ELECTRICAL ENGINEERING STUDENTS AT UMK USING BARCODE ON STUDENT ID CARDS (KTM) Rifqi Zulhilmi; Noor Yulita Dwi Setyaningsih; Mohammad Iqbal
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.6758

Abstract

This research aims to develop a Web-Based Attendance and Access System for Electrical Engineering Students at Muria Kudus University (UMK) using Student Identity Cards (KTM) equipped with barcode technology. This system not only manages student attendance digitally but also improves classroom security by integrating a barcode verification-based electromagnetic locking system. The development process of this system uses the Research and Development (R&D) method with the ADDIE model which consists of the stages of analysis, design, development, implementation, and evaluation. In software testing, login tests are carried out, barcode system integration tests with databases, and data processing speed and system resilience tests. The results of the system test showed that the system performed well under varied network conditions, although there was a dependence on network quality that affected the system response time. In addition, barcode scanning distance testing showed that the GM66 barcode reader has an optimal range between 5 cm to 30 cm. System testing also includes a resiliency test to unstable network conditions, where the system can handle connection loss by performing temporary storage and data synchronization after the connection is restored. Overall, the test results show that this system is reliable in managing classroom attendance and security and has the potential to be applied more widely in the campus environment. This research makes an important contribution in improving the efficiency of academic administration and strengthening the campus security system.
IMPLEMENTATION OF INFORMATION SYSTEM FOR ADMINISTRATION AND GEOSPATIAL OF WERNAS VILLAGE IN SOUTH SORONG BASED ON WEBSITE AND ANDROID Novandi Rezeki; Pailus, Muhammad
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.6808

Abstract

This research aims to address the challenges of administration and natural resource management in Wernas Village, South Sorong, Southwest Papua, through the implementation of website-based administrative and geospatial information systems and Android applications. Wernas Village, which is currently still lagging behind in terms of technology, has great potential to develop a modern digital village, especially by utilizing abundant natural resources such as rivers. In order to achieve these objectives, this research uses mixed methods research that combines qualitative and quantitative approaches. The initial stage involved a preliminary study to analyze the needs and challenges of the village, followed by the design of an information system that included website design, Android application, and geospatial mapping.The prototype of the information system was then developed and tested in a limited environment in the village. Evaluation and refinement were carried out based on the results of the trial, with the aim of ensuring the information system was ready for full implementation. The targeted outputs of this research include the design of an information system prototype that is ready to be implemented, mapping of administrative needs and management of village natural resources, as well as improving the quality of public services and administrative efficiency. It is expected that the results of this research can make a significant contribution in improving the quality of life of the people of Wernas Village, accelerating inclusive and sustainable village development, and becoming an example for other villages in the South Sorong Regency area to adopt information technology to advance local development.

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