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Examining of Lecturer Interaction, Digital Literacy, and Visual Media on Student Learning Outcomes: The Key Role of Learning Motivation as A Mediation Variable Saaf, Arifin; Anggraini, Atika; Fauziyah, Selvi; Aziziy, Yunia Nabila; Dani, Ahmad; Qodariyah, Mamluatul
Islamic Journal of Integrated Science Education (IJISE) Vol. 5 No. 1 (2026): March
Publisher : Program Studi Tadris IPA, Fakultas Tarbiyah dan Ilmu Keguruan, Universitas Islam Negeri (UIN) Syekh Wasil Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30762/ijise.v5i1.8391

Abstract

This study examined of lecturer interaction on students’ learning outcomes, with learning motivation serving as a mediating variable. The research employed a quantitative explanatory design using Partial Least Squares Structural Equation Modeling (PLS-SEM). The study was conducted in the Tadris Ilmu Pengetahuan Alam (TIPA) Study Program at UIN Syekh Wasil Kediri and involved 22 fifth-semester students selected through total sampling. Data were collected using a five-point Likert-scale questionnaire measuring lecturer interaction, learning motivation, and learning outcomes. The results showed that lecturer interaction did not have a significant direct effect on students’ learning outcomes. However, lecturer interaction had a significant positive effect on learning motivation, and learning motivation significantly influenced learning outcomes. The mediation analysis further revealed that learning motivation significantly mediated the relationship between lecturer interaction and learning outcomes. These findings indicate that lecturer interaction contributes to student learning outcomes indirectly by strengthening learning motivation. The study highlights the importance of creating meaningful lecturer–student interaction in higher education as a way to foster student motivation and improve academic achievement. Therefore, efforts to enhance learning outcomes should focus not only on instructional delivery but also on building supportive and motivating academic interactions.
Analisis Kinerja Dan Efesiensi Sistem Kontrol Motor Induksi 3 Fasa Menggunakan Variable Speed Drive Pada Pompa Proses Fatty Acid Di PT. Permata Hijau Palm Oleo Bagas Saputra; Ahmad Dani; Beni Satria
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

This study investigates the performance and energy efficiency of a three-phase induction motor controlled by a Variable Speed Drive (VSD) in a fatty acid pump system at the Permata Group processing plant. The research is motivated by the increasing need for energy savings and operational reliability in continuous industrial processes where pump load profiles are highly dynamic. The objective of this study is to evaluate the effectiveness of VSD implementation in reducing energy consumption and improving motor operating characteristics under real plant conditions. Data were collected during actual production cycles through direct measurement of electrical and mechanical parameters, including current, voltage, frequency, torque, flow rate, and power consumption. The analysis compares the performance of the pump system before and after the application of VSD, using descriptive statistical analysis and graphical evaluation of motor behavior under various load conditions. The results demonstrate that the application of VSD significantly reduces energy consumption at partial loads while maintaining stable pump output and minimizing mechanical stress. The motor also shows improved operating efficiency and lower thermal loading compared to constant-speed operation. These findings indicate that VSD-based control offers a practical and cost-effective solution for industrial pump systems, especially in fatty acid processing operations where flow demand fluctuates during production. The practical implications are substantial, highlighting opportunities for energy conservation, equipment longevity, and process optimization without compromising product quality or throughput, making the system suitable for broader adoption in similar industrial environments.
Analisis Potensi Energi Listrik Tenaga Surya Atap Pada Gedung PT.WNS Menggunakan Software Helioscope Dymas Halim; Ahmad Dani; Beni Satria
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

The use of rooftop solar power plants is one of the strategic solutions to support the energy transition and increase use of renewable energy in the industrial sector. This study aims to analyze the potential and performance of rooftop solar power plants at PT. Waruna Nusa Sentana building located in Medan City, North Sumatra, using a simulation approach based on HelioScope software. The analysis was carried out by utilizing Typical Meteorological Year weather data and technical parameters of the Photovoltaic (PV) system designed according geographical conditions and tropical climate of the study location. simulation results show that rooftop solar power system with an installed capacity of 47.36 kWp is capable of producing 66,699 kWh of annual electrical energy with a specific yield of 1,408.3 kWh/kWp/year. The system performance evaluation resulted in a performance ratio of 80.2%, indicating that the rooftop solar power system works efficiently and is in the good performance category for tropical regions. Loss analysis indicates that the largest energy losses come from the effects of cell temperature, followed by losses due to module mismatch, reflection, and losses in the inverter and AC system. Manual calculations performed as analytical verification demonstrated consistency with the simulation results, thus strengthening the validity of the approach used. This study demonstrates that the implementation of rooftop solar power plants in industrial buildings in Medan City is technically feasible and can be used as a reference in the planning and development of rooftop solar power plants in tropical regions with similar climate characteristics
Kendali Kecepatan Motor Induksi Satu Fasa Pompa Submersible Menggunakan Fuzzy Logic Suci Wulan Dari; Beni Satria; Ahmad Dani
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

This study develops and implements a Fuzzy Logic Controller (FLC) for speed control of single- phase induction motors in submersible pump applications, addressing the critical need for energy-efficient variable speed drives in domestic and small-scale agricultural water systems. Single-phase induction motors are widely used in submersible pumps due to their simplicity and cost-effectiveness, yet conventional constant-speed operation results in significant energy waste under varying load conditions. The research employs both simulation using MATLAB/Simulink and experimental validation with a 0.75 kW motor-pump prototype to evaluate FLC performance against conventional PID controllers. The FLC is designed with seven triangular membership functions for each input (speed error and error rate of change) and output (frequency change), implementing 49 fuzzy rules based on expert knowledge. Experimental results demonstrate that FLC achieves superior performance with 38.58% faster rise time, 40.64% shorter settling time, 61.89% lower overshoot, and 74.49% smaller steady-state error compared to PID across various setpoint speeds. Energy efficiency analysis reveals 12.98% energy savings at 25% load and consistent improvements across all operating conditions, with weighted average efficiency of 67.55% versus 62.70% for PID. The FLC also exhibits excellent robustness under parameter variations, maintaining acceptable performance even with 20% resistance increase and 10% voltage drop. Power quality metrics show 3.45% higher power factor and 27.06% lower current Total Harmonic Distortion. Implementation costs remain identical to PID systems, providing superior performance without additional hardware investment. This research contributes practical solutions for national energy efficiency programs, with potential aggregate savings of hundreds of GWh annually if
Perancangan Sistem Pengemasan Barang Otomatis Berbasis PLC Omron Marsal Nasution; Ahmad Dani; Solly Aryza Lubis
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

This research aims to design and test Omron's PLC-based automated goods packaging system in the product packaging process. The system combines PLC technology, industrial robots, and sensors to improve efficiency and accuracy in packaging. The test was conducted in two modes, namely manual mode and automatic mode, with a focus on the filling process, bottle cap placement, and bottle cap sealing. The test results showed that in manual mode, the system can pack one bottle in a row, while in automatic mode, the system can pack three bottles efficiently with an efficiency of up to 99.99%. In addition, tests on the actuator and sensor show that all components are in good working order, and the system can detect the position of the bottle as well as control the milk flow with precision. The use of Omron's PLC as a control center provides ease of programming and improves system reliability. Overall, the study shows that Omron's PLC-based automated packaging system is effective in increasing productivity and reducing reliance on manual labor, with the potential to be applied in large-scale packaging industries.
Optimalisasi Sistem Charging Induktif Electric Vehicle Menggunakan Algoritma PID Berbasis ESP-32 M. Agung Irwansyah; Beni Satria; Ahmad Dani
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

The widespread adoption of electric vehicles (EVs) is hindered by the practicality and efficiency of charging infrastructure. Inductive wireless power transfer (WPT) offers a promising alternative, but its output stability is challenged by variations in air-gap distance, magnetic coupling, and load. This research aims to optimize the stability and dynamic response of an inductive EV charging system by implementing a Proportional-Integral-Derivative (PID) control algorithm on an ESP-32 microcontroller. The ESP-32 was selected for its computational capability, built-in Wi-Fi/Bluetooth connectivity, and cost-effectiveness. The study employs a laboratory-scale prototype with series-series compensation. A one-group posttest-only design was used, testing nine scenarios combining three air-gap distances (2, 4, 6 cm) and three resistive loads (10, 20, 30 Ω). System performance was evaluated based on steady-state error (SSE) and settling time (t_s). The results show that the PID control significantly reduced the SSE to below 3% across all tested conditions, representing an average error reduction of 89.6% compared to the open-loop system. The settling time for a step load change was 120 ms, demonstrating a fast dynamic recovery. The system also effectively compensated for lateral misalignment. The integrated Wi-Fi module enabled real-time remote monitoring. This study concludes that an ESP-32-based PID controller provides a stable, responsive, and connected control solution for inductive EV charging systems, offering a cost-effective alternative to more complex hardware platforms.
Sistem Monitoring Kualitas Air Akuakultur Real-Time Berbasis IoT Menggunakan Sensor pH, Suhu, Dan Kekeruhan Dengan Notifikasi Telegram M. Aryan Syah; Beni Satria; Ahmad Dani
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

Aquaculture productivity is highly dependent on maintaining optimal water quality, yet traditional manual monitoring methods are labor-intensive and lack real-time capability. This study addresses this gap by designing and implementing an IoT-based real-time water quality monitoring system specifically for aquaculture, integrating pH, temperature, and turbidity sensors with Telegram notifications. The research and development (R&D) approach was employed to build a prototype system consisting of sensor nodes (ESP32 microcontroller with pH, DS18B20 temperature, and TSW-10TM turbidity sensors), a cloud server for data processing, and a Telegram Bot for instant alerts. System testing evaluated sensor accuracy, data transmission reliability, and notification effectiveness. The results demonstrated that the system performed with high accuracy, showing strong correlation (r > 0.99) with standard measurement tools and an average error below 3%. The data communication proved reliable, achieving a Packet Delivery Ratio (PDR) of 98.7% with an average end-to-end latency of 2.3 seconds. Crucially, the Telegram notification mechanism was 100% effective, delivering all threshold breach alerts with an average latency of only 3.8 seconds. These findings confirm the system's potential as a practical, efficient, and affordable solution for precision aquaculture. It enables continuous monitoring and provides early warnings, empowering farmers to take immediate corrective actions to prevent stock stress and economic losses, thereby contributing to the sustainability of small to medium-scale aquaculture operations in Indonesia.
Pengaduk Pakan Ayam Otomatis Berbasis IoT Nabila Patawa Siregar; Pristisal Wibowo; Ahmad Dani
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

The development of Internet of Things (IoT) technology has significantly influenced the livestock sector, particularly in improving the efficiency of feed management in poultry farming. Manual feed mixing is still widely applied, despite its limitations in terms of time, labor, and feed uniformity. This study aims to design and evaluate the performance of an IoT-based automatic chicken feed mixing system to enhance operational efficiency and real-time monitoring. The research employs a quantitative experimental approach based on system simulation, including hardware and software design, system modeling, and functional performance testing. The system is controlled by an ESP32 microcontroller integrated with a DC motor, servo motor, relay, and an IoT-based monitoring application. Experimental results indicate that the system operates stably under various feed load conditions, with relatively constant motor voltage and power consumption increasing proportionally with the applied load. Energy consumption remains within an efficient range, while the IoT application successfully provides real-time system status monitoring with responsive performance. Overall, the proposed IoT-based automatic feed mixing system effectively improves feed processing efficiency, reduces dependence on manual labor, and supports the implementation of modern, technology-driven poultry farming systems.
Implementasi Sistem Deteksi Kegagalan Daya Secara Real-Time Berbasis Internet of Things Menggunakan ESP8266 sebagai Web Server Supri Ananda; Ahmad Dani; Beni Satria
Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Vol. 4 No. 3 (2026): Februari 2026
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juktisi.v4i3.865

Abstract

Kegagalan daya atau kondisi power off yang tidak terencana pada mesin industri sering kali mengakibatkan kerugian finansial masif dan kerusakan peralatan yang serius. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem deteksi kegagalan daya secara real-time berbasis Internet of Things (IoT) dengan memanfaatkan ESP8266 sebagai Web Server mandiri. Metode penelitian yang digunakan adalah Research and Development (R&D), meliputi perancangan perangkat keras yang mengintegrasikan sensor tegangan, sensor arus ACS712, relay DC, dan motor stepper sebagai simulasi beban dinamis. Sistem ini menerapkan logika "Safe System" dengan ambang batas keamanan kritis sebesar 3,0V. Hasil pengujian membuktikan bahwa sistem mampu melakukan akuisisi data parameter listrik dengan tingkat akurasi mencapai 99% dan latensi rendah melalui protokol HTTP yang menjamin keandalan data 100%. Saat tegangan terdeteksi di bawah 3,0V, mikrokontroler secara instan memutus aliran relay dan menghentikan putaran motor untuk proteksi otomatis. Visualisasi data disajikan secara sinkron melalui LCD I2C dan dashboard web yang menampilkan nilai Voltase (V), Arus (mA), dan Daya (Watt) secara seketika. Kesimpulannya, sistem ini menyediakan solusi pemantauan mandiri yang efektif untuk meminimalkan waktu henti produksi (downtime) dan meningkatkan keandalan manajemen aset industri.
Perancangan Simulator Sistem Proteksi dan Monitoring Suhu pada Motor DC Berbasis Internet of Things (IoT) Irwan Syaputra; Ahmad Dani; Hamdani
Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Vol. 5 No. 2 (2026): September 2026
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juktisi.v5i2.1376

Abstract

Penelitian ini menerapkan metode perancangan yang mencakup studi literatur, perancangan perangkat keras dan perangkat lunak, implementasi sistem, serta pengujian kinerja untuk memastikan seluruh komponen bekerja secara optimal. Sistem memanfaatkan sensor suhu DS18B20 sebagai perangkat monitoring suhu yang terintegrasi dengan mikrokontroler ESP32 untuk memperoleh data secara real-time. Informasi yang diperoleh kemudian ditampilkan pada dashboard berbasis web sehingga kondisi motor listrik dapat dipantau secara terus-menerus. Sebagai bagian dari sistem proteksi, relay digunakan untuk memutus aliran listrik secara otomatis ketika suhu motor melewati batas aman yang telah ditetapkan, sehingga potensi kerusakan akibat overheating dapat diminimalkan. Implementasi berbasis Internet of Things (IoT) memungkinkan proses pemantauan dilakukan dari jarak jauh melalui jaringan internet dengan waktu respons yang relatif cepat. Hasil pengujian menunjukkan bahwa sistem mampu memberikan pembacaan suhu yang stabil, mengirimkan data secara real-time, serta menjalankan mekanisme proteksi secara otomatis sesuai kondisi yang terdeteksi. Dengan rancangan yang sederhana, biaya implementasi yang relatif rendah, dan kemudahan pengembangan lebih lanjut, sistem ini berpotensi menjadi solusi alternatif dalam meningkatkan keandalan operasi motor listrik sekaligus mendukung proses monitoring dan pengambilan keputusan secara lebih efektif di lingkungan industri.
Co-Authors ABDUL HAMID Abubakar, Achmad Adelia Azzahra Ahmad Mujahid, Ahmad Alhabsyi, Hadija Amani Darma Tarigan Amos Marganda Girsang Andi Naila Quin Azisah Aliasyahbana Andrie Wijaya, Shendy Anggraini, Atika Arfis A Arif Maulana, Arif Arif Rahmansyah Astrina Utami Auliany, Shylvia Rizki Azis Muslim, Azis Aziziy, Yunia Nabila Badogil, Hutur Tuan Bagas saputra Beni Satria Dailami - Dewi, Nur Winda Dina Maulida Dina Tampubolon Dino Erivainto Dino Erivianto Dyah Ayu Putriani Dymas Halim Eko Prasetyo Hadi Ekowijayanto, Mochlis Endang Supriatna Evan Haviana Fahrul Fahrul Faiz, M Farid Hidayat Fauziyah, Selvi Gebi Massing Gulo, Nico Ewaldo Fan Gultom, Dedi Harianto Hamdani Hamdani . Hamdani Hamdani Haniah Haniah Haris Gunawan Haris Gunawan Haris Gunawan Hilmy, Zakwan Irwan Syaputra Jhon Wandes P. Hutagaol Junaedi Hutabarat Khairul Saleh Khairunnisa Salsabila Purba Khalizah, Ismi Ardiandari Nur Legito . M. Agung Irwansyah M. Aryan Syah M. Irwansyah M. Rizky Syahputra Marcellino Eliah Minanga Maria Cecelia Peni Marsal Nasution Marsinta Uli Sinurat Marthin Hotniel Marisi Arigatho Simbolon Mhd. Ali Akbar Nasution Mia Fitria Muh. Zulfi Qadri mulia Mulia Mulia Nabila Patawa Siregar Nana Rahayu, Nana Neviyani Neviyani, Neviyani Noviansyah Noviansyah Nur Rezki Fitriani Nuraprilyani Pasaribu Pristisal Wibowo Qodariyah, Mamluatul Rahmaniar Rendy Nugraha Bidangan Rolina Amriyanti Ferita, Rolina Amriyanti Saaf, Arifin Sabrina, Sangkot Sanjaya, Moh. Nunung Seksama Reformasi Baene Simbolon, Silvana P. Skarim, Sakrim Solly Aryza Stepanus.S, Ronaldo SUCI WULAN DARI Sulfina Abrianti Supri Ananda Susilo, Trisno Sutan Aradji Larby Siregar Syafiqah Mangkawani Caneng Syarofi, Ibnu Tarigan, Amani Darma Tati Herlina Tyas Adi, Fajar Wibowo, Pristisal Widodo, Panggih Williza Yanti Yanti, Sri Rahmayanti Yenni Cahya Sikala Yohani, Adisthi Martha