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All Journal Teknik Mesin "TEKNOLOGI" Jurnal Informatika dan Teknik Elektro Terapan TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Infotekmesin REMIK : Riset dan E-Jurnal Manajemen Informatika Komputer Jurnal E-Komtek Madani : Indonesian Journal of Civil Society E-JOINT (Electronica and Electrical Journal Of Innovation Technology) Journal Of Academia In English Educations (JADEs) Journal of Power, Energy, and Control Applied Engineering, Innovation, and Technology
Hazrina, Fadhillah
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Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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IMPLEMENTASI DIMMER AC BERBASIS ARDUINO PADA PENGATURAN KECEPATAN MOTOR INDUKSI SATU FASA hazrina, Fadhillah
Jurnal Informatika dan Teknik Elektro Terapan Vol. 11 No. 3s1 (2023)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v11i3s1.3400

Abstract

Some things that must be considered to improve the work of an induction motor are the rotational speed of the motor which is expected to continue to be increased, torque that can meet the load, and higher efficiency. Multilevel inverters will play an important role in converting DC energy from battery sources into AC electrical energy. This study aims to create a single-phase induction motor speed control system with an Arduino Mega-based Multilevel inverter. External input in this study uses a normally close push button with two initializations, namely the Up and Down push buttons. The push button functions as an induction motor speed control with speed conversion in the form of a percent parameter. Parameters will appear on the LCD display for every change that occurs. The test results show that the induction motor will start rotating at a percentage of 20%, namely at a speed of 1631.8 RPM, then Up to 40% at a speed of 2260.2, Up again to 60% at a speed 3261.8 RPM, and at 80% speed it produces 4163.8 and the highest speed reaches 5241.4 RPM with a speed percentage of 100%. The rotational speed of the motor can be displayed on the LCD display in the form of a digital display.
Assessing Cilacap State Polytechnic Students' Ability to Conduct English Proficiency Test: Challenges and Strategies Widianingsih, Betti; Vikasari, Cahya; Hazrina, Fadhillah; Prabowo, Annas Setiawan
JADEs Journal of Academia in English Education Vol 6 No 1 (2025): JADEs Journal of Academia in English Education
Publisher : Tadris Pendidikan Bahasa Inggris IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/jades.v6i1.11456

Abstract

The purpose of this study was to evaluate Cilacap State Polytechnic students' readiness for the EPT-P and determine the obstacles they encounter as well as the strategies they employ to pass the test. This research used a mixed-methods case study design. To collect data, it used test and questionnaires which refer to the theory of Self-Regulated Learning, Test Taking Strategy, TAM and study of interlanguage. Analysis was based on Likert scale responses. It involved 60 final-year students of Cilacap State Polytechnic in the academic year of 2021/2022 from different study programmes. The study found that students at the State Polytechnic of Cilacap had a general lack of English competence, with just 25 out of 60 (41%) scoring over the 400 EPT-P pass score. Key issues were linguistic difficulties 37 students (62%) struggled with long reading texts, 41 (68%) struggled with essay writing, and 40 (67%) had difficulty listening, with 17 (28%) strongly agreeing. Psychological challenges were particularly significant: 28 students (47%) reported anxiety, while 44 (73%) reported losing focus. Technological and resource challenges were prominent, with 40 students (67%) lacking preparation materials and 55 (92%) never having had official instruction. Furthermore, 33 students (55%) considered the listening equipment unclear, and 54 (90%) thought the test was overpriced. Only 16 students (27%) prepared mentally and physically, while only 9 (15%) took classes. These findings, which were backed by many language learning and educational theories, emphasise the importance of economical training, easily accessible materials, and personalised coaching in improving student performance.
Exploration of Engineered Diode Current-Voltage Convergence for Maximum Power Point Tracking in Single-Axis Solar Tracker Systems. Ilahi, Novita Asma; Musyafiq, Afrizal Abdi; Hazrina, Fadhillah
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 2 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i2.2919

Abstract

Indonesia, situated in the tropics, possesses optimal solar irradiation potential, positioning it as an ideal location for the deployment of photovoltaic (PV) energy systems. Given the escalating electricity demand driven by demographic expansion and technological advancements, harnessing solar panels as a viable alternative energy source is crucial. Nevertheless, static PV installations frequently yield suboptimal power absorption. This research, titled "Exploration of Diodic Current-Voltage Convergence of Maximum Power Point Engineering in a Single-Axial Solar Tracker System," focuses on an advanced approach to power optimization. Specifically, the study designs and evaluates a system capable of optimally capturing solar radiation by integrating a 20 Watt Peak (WP) PV unit with an automatic Solaris Single-Axial Tracker. The system architecture utilizes an Arduino Nano microcontroller as the core control unit, which is equipped with an ACS712 current sensor and a DC voltage sensor. Real-time data communication is accomplished using a Node-MCU ESP8266 module for serial transmission. Comparative analysis reveals a significant performance enhancement in the PV system attributed to the automatic tracking implementation. The average power absorbed by the 20 WP solar panel increased from 89.2 W (without tracking) to 93.70 W when the Single-Axial Tracking system was employed. Correspondingly, the PV panel's efficiency improved from 78.4% (static) to 82% (tracked). Furthermore, the monitoring data (current, power, and voltage) is visualized in real-time on a smartphone via the Blynk application, enabled by an internet-based communication protocol. This investigation successfully demonstrates that a microcontroller-based single-axial tracking system offers an efficient solution for maximizing solar energy absorption in tropical environments.
Penerapan Sistem Jalan Umum Pintar Berbasis Arduino dengan Supply Tenaga Surya di Desa Banjarwaru Hazrina, Fadhillah; Alimudin, Erna; Dewi, Riyani Prima; Zaenurrohman, Zaenurrohman; Pratiwi, Artdhita Fajar; Riyanto, Sugeng Dwi; Purwiyanto, Purwiyanto
Madani : Indonesian Journal of Civil Society Vol. 8 No. 1 (2026): Madani : Februari 2026
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/m3r4xj11

Abstract

Banjarwaru Village in Cilacap Regency is facing problems related to the lack of Public Street Lighting (PJU), with several vital road sections being dark at nite. This condition significantly reduces safety levels, increases the risk of crime and accidents, and hinders the mobility and socio-economic activities of the community. Residents, especially women and children, feel unsafe to go outside, which impacts religious, social, and economic activities. Responding to this urgency, this community service program aims to improve the quality of life and well-being of the Banjarwaru Village community through the application of appropriate technology. The proposed solution is the installation of two units of an Arduino-based smart street lighting system powered by solar energy. The implementation method for this service involves field observation and experimentation in the design and construction process of public streetlights, and technology transfer to the community. The results of creating a smart public street light based on Arduino with solar power supply function well. At night, electricity is supplied by batteries. The batteries are charged during the day, when the solar cells receive sunlight. The final activity in this series of community service, and the closing event, was the handover and guidance to the Banjarwaru community, thru the Village Head of Banjarwaru, on how the smart public street lighting system powered by solar energy works and how to maintain it.
Co-Authors ., Zaenurrohman Afrizal Abdi Musyafiq Agus Santoso Ali, Naufal Alimudin, Erna Annas Setiawan Prabowo Bahasa Indonesia Cahya Vikasari Cahya Vikasari, Cahya Gilang, Hanif Hera Susanti, Hera Illahi, Novita Asma Maemunah, Putri Maya Mafaza Harris, Ridho Ihsan Mahmuddin Mahmuddin Novita Asma Ilahi Pangeran, Pangeran Prabowo, Anas Setiawan Prima Dewi, Riyani Purwiyanto, Purwiyanto Riyani Prima Dewi Sugeng Dwi Riyanto Sulaiman Sulaiman Sumardiono, Arif Syaefulloh, Arief Widianingsih, Betti Widiyanto, Syam Zaenurrohman Zaenurrohman Zaenurrohman, Zaenurrohman