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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Applied Power Engineering (IJAPE) JURNAL SISTEM INFORMASI BISNIS Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Pendidikan Teknologi dan Kejuruan JTEV (Jurnal Teknik Elektro dan Vokasional ELKHA : Jurnal Teknik Elektro Jurnal Pendidikan Indonesia Jurnal Inovasi Teknologi Pendidikan Jurnas Nasional Teknologi dan Sistem Informasi JURNAL NASIONAL TEKNIK ELEKTRO Jurnal Teknik Sistemasi: Jurnal Sistem Informasi Al Ishlah Jurnal Pendidikan INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Journal of Educational Research and Evaluation Journal of Applied Engineering and Technological Science (JAETS) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat JPTE: Jurnal Pendidikan Teknik Elektro JTEIN: Jurnal Teknik Elektro Indonesia Mosharafa: Jurnal Pendidikan Matematika MSI Transaction on Education Jurnal Abdimas Kartika Wijayakusuma Jurnal Vokasi Mekanika The Indonesian Journal of Computer Science SNTE Journal of Industrial Automation and Electrical Engineering
Krismadinata Krismadinata, Krismadinata
Unknown Affiliation
Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Design and Manufacture of Wireless Monitoring system of Photovoltaic Generation Employing Raspberry PI 3 Krismadinata, Krismadinata; Kusuma, Puja; Yahfizham, Yahfizham
ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v13i1.42888

Abstract

This paper recounts design and development the realtime and wireless monitoring systems to observed the characteristics and performanced of the solar photovoltaic (pv) energy generation. The monitoring systems designed used the Raspberry Pi 3 as the data processing center, the voltage divider as the voltage sensor, ACS712 as the current sensor, DHT as the temperature sensor, and BH1750 as the solar irradiation sensor. The measurements of the pv generation characteristics are carried out all the time in real time. The monitoring systems developed has calibrated with standard measuring instruments. The measurement data has processed, sent and stored in the database via the internet. The MySQL database with single user interface using the Web-based programming language has employed. This research has proven that the system designed to functioning properly and correctly to achieve the objectived. The novelty of these project are the pv wireless monitoring systems techniques with the simple device resources, capable of showing maximum performanced.
Effectiveness of development of diva learning management system models on Algorithm and Programming Mathematics Course Muchlis, Lita Sari; Rukun, Kasman; Krismadinata, Krismadinata
Jurnal Pendidikan Teknologi Kejuruan Vol 3 No 2 (2020): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v3i2.7123

Abstract

The development of the DIVA Learning Management System learning model is an increase in student understanding based on problems because learning algorithms and programming is indicated to be low in students' understanding that is abstract in the subjects of algorithms and programming. For this reason, the purpose of this study is to develop a DIVA Learning Management System model that has effectiveness. The methodology used is quasi experimental design in the form of nonequivalent pretest-posttest control group design. This study found the DIVA Learning Management System learning model with the syntax: a) Display; b) Information Search; c) Virtual Problem Solving; and d) Appraisal, and products from: (1) DIVA learning management system learning model (2) learning tools; (3) modules; and (4) learning media. Analysis of research data shows the learning model DIVA Learning Management System In the effectiveness test of media use for lecturers 92.3% is effectively used and for student learning outcomes with pre-test and post-test test scores can be seen from the achievement score of each respondent. The gain score results indicate the achievement score is at the level of 0.486 with the interpretation that overall an increase in scores after being given treatment to respondents. Based on the results of the data analysis above, it can be concluded that the model developed meets the feasibility to be used.
Rancang Bangun Pengisian Baterai Menggunakan Buck Converter Asnil, Asnil; Wibowo, Eko Avin; Krismadinata, Krismadinata; Hazman, Hanif; Husnaini, Irma
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

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Abstract

Makalah ini membahas tentang rancang bangun buck converter yang digunakan untuk pengisian baterei dengan menerapkan metode pengisian tegangan konstan pada system PLTS. Metode kendali PID digunakan untuk menjaga agar tegangan keluaran dari buck converter tetap stabil. Dari hasil pengujian, tegangan keluaran buck converter stabil pada nilai 14,5 Volt dengan nilai Kp = 1.95, Ki = 3,9 dan Kd = 0,000243. Penalaan PID menggunakan metode Ziegler-Nichols didapatkan nilai overshoot tegangan sebesar 0V, nilai rise time 0.01s dan settling time 0.03s. Pengujian dilakukan pada baterai 12 V/1,2 Ah dengan kondisi tegangan awal 11,5 Volt dapat diisi dalam waktu sekitar 20 menit.
Pengasutan dan Monitoring Motor Induksi Satu-fasa Menggunakan Metoda Tahanan Biner Krismadinata, Krismadinata; Maputra, Hedra; Asnil, Asnil; Husnaini, Irma
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

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Abstract

Motor induksi satu-fasa digunakan dalam banyak aplikasi rumah tangga dan industri. Namun, ada tantangan tersendiri dalam mengoperasikan motor induksi satu-fasa. Salah satu persoalan yang muncul adalah besarnya arus stator pada saat pengasutan. Dalam artikel ini, metode pengasutan motor induksi satu-fasa yang menggunakan metode tahanan biner disajikan. Selain itu, karakteristik motor induksi seperti tegangan, arus, kecepatan, dan suhu dipantau melalui antarmuka visual studio. Beberapa komponen penting digunakan dalam sistem ini, seperti sensor tegangan ZMPT101B, sensor suhu DS18B20, sensor kecepatan FC-33, sensor arus ACS712, bluetooth HC-05, lima relay, dan empat resistor 15 Ω. Hasil eksperimen yang menunjukkan bahwa metode tahanan biner efektif dalam mengurangi arus asut motor induksi. Suatu antarmuka yang dikembangkan dapat memantau karakteristik motor induksi.
Single-phase controlled AC-DC converter using SCR Irsyad, Muhammad; Krismadinata
Journal of Industrial Automation and Electrical Engineering Vol. 1 No. 2 (2024): Vol 1 No 2 (2024): December 2024
Publisher : Department of Electrical Engineering Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/q73ftm39

Abstract

The 1-phase controlled full-wave rectifier is one of the main components in power electronics technology that functions to convert alternating voltage (AC) into direct voltage (DC). This circuit is used in various applications, such as battery charging systems and DC motors in industry. Controlled rectifiers use a Silicon Controlled Rectifier (SCR). The use of SCRs in controlled rectifiers provides the advantage of more precise current control. The controlled rectifier uses a Silicon Controlled Rectifier (SCR), which is controlled with a microcontroller through an SCR driver. The SCR driver serves for isolation so that the converter circuit does not damage the microcontroller due to current surges. This circuit also requires a zero crossing detector to determine the intersection of point 0 on the AC wave. This research aims to design and build a 1-phase full wave rectifier system using SCR as the main controlling component. With a deep understanding of SCR characteristics, it is hoped that this research can contribute to the development of modern power supply technology that is more efficient and can be controlled with precision.
Enhanced incremental conductance MPPT method for maximizing photovoltaic power generation Asnil, Asnil; Nazir, Refdinal; Krismadinata, Krismadinata; Nasir, Muhammad
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i4.pp2757-2767

Abstract

This research proposes an enhanced maximum power point tracking (MPPT) algorithm that integrates the variable step size (VSS) method to significantly improve power extraction from photovoltaic (PV) systems. The primary objective is to optimize performance under dynamic environmental conditions. Through comprehensive experimental studies, the proposed algorithm’s performance was evaluated and directly compared against conventional incremental conductance (INC) and perturb and observe (P&O) algorithms. The results demonstrate a substantial increase in power generation, with the proposed algorithm delivering 18.79% more power compared to INC and 39.67% more power than P&O. These findings underscore the efficacy of the developed algorithm at improving the efficiency and robustness of PV power generation, particularly in variable operating environments.
Development and Validation of an Evaluation Instrument for the Industrial Field Practice Program in Informatics Engineering at Universitas Putra Indonesia YPTK Padang Renny Permata Saputri; Fahmi Rijal; Muhammad Giatman; Ambiyar Ambiyar; Krismadinata Krismadinata; Nurhasan Syah
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 4 (2025): DECEMBER 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i4.8022

Abstract

Industrial Field Practice (PLI) is essential in vocational education, bridging academic learning with real-world industry experience. However, evaluating its effectiveness often lacks standardized and validated instruments, particularly in Informatics Engineering programs. This study aims to develop and validate an evaluation instrument for the PLI Program at Universitas Putra Indonesia YPTK Padang. The instrument was constructed using Stake’s Countenance Evaluation Model, which includes three components: antecedents, transactions, and outcomes. A total of 80 items were initially developed through literature review and expert consultation. Content validation was conducted using the Aiken’s V formula, involving three experts in vocational education evaluation. Items with V 0.8 were considered valid. Of the 80 items developed, 70 met the content validity criteria and were deemed valid, while 10 required revision based on expert feedback. Valid items measured aspects such as student readiness, supervision quality, task relevance, use of technology, work ethics, technical skills, soft skills, and final project outcomes. Each item was aligned with industrial expectations and educational standards. The results demonstrate that the developed instrument has strong content validity and provides a comprehensive framework for evaluating PLI implementation. It supports quality assurance and continuous improvement in vocational education. The instrument can be adapted by other institutions for similar programs in different fields.
The Impact of Quizizz-Based Gamification on Academic Achievement: A Meta-Analysis Across Educational Contexts Deby Cinthia; M. Giatman; Nurhasan Syah; Nizwardi Jalinus; Krismadinata Krismadinata; Ambiyar Ambiyar
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 4 (2025): DECEMBER 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i4.8097

Abstract

This meta-analysis investigates the overall impact of Quizizz-based gamification on students’ academic achievement across diverse educational contexts, from elementary to higher education. A systematic search of academic databases (Google Scholar, ERIC, Scopus, and institutional repositories) identified 1,340 studies, of which 28 met inclusion criteria. Effect sizes and standard errors from 25 quantitative studies were synthesized using JASP software under a fixed-effects model. The results reveal a large and statistically significant overall effect (Cohen’s d = 0.86, p .001), indicating that Quizizz substantially improves academic performance. Heterogeneity was moderate (I² = 48.6%), and funnel plot analysis with Egger’s test indicated minimal publication bias. Subgroup analysis showed consistent effectiveness of Quizizz across subject areas (e.g., mathematics, science, language learning) and instructional settings (face-to-face, blended, and online learning). These findings suggest that Quizizz is a versatile and pedagogically valuable tool for enhancing student engagement, motivation, and achievement. The study supports the broader adoption of gamified digital tools in modern classrooms and recommends further research to explore long-term effects and contextual moderators.
Bibliometric and Systematic Review of AI-Assisted Adaptive Learning Applications in Vocational Education (2018-2023) Harleni Harleni; M. Giatman; Nurhasan Syah; Ganefri Ganefri; Nizwardi Jalinus; Ridwan Ridwan; Krismadinata Krismadinata
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 4 (2025): DECEMBER 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i4.8019

Abstract

The integration of Artificial Intelligence (AI) into adaptive learning systems has gained traction in vocational education due to its potential to personalize instruction and enhance competency-based learning. However, research on this intersection remains fragmented, particularly in the context of vocational education and training (TVET). This study conducts a Systematic Literature Review (SLR) using the PRISMA protocol, combined with bibliometric analysis using VOSviewer, to map research trends on AI-assisted adaptive learning in vocational education from 2018 to 2023. Data were sourced from Scopus, Semantic Scholar, and Google Scholar, resulting in 41 eligible articles. The findings reveal a sharp increase in publications after 2020, reflecting growing interest in AI-driven innovations, particularly during the COVID-19 pandemic. Bibliometric mapping identified three dominant thematic clusters: AI-enabled personalization, competency-based vocational education, and pedagogical innovation. Geographically, most research originates from technologically advanced countries such as the United States, India, and the United Kingdom. The study highlights the strategic role of AI-assisted adaptive learning in supporting individualized pathways and skills alignment in vocational education. It also identifies gaps in longitudinal evaluation, pedagogical integration, and research representation from developing regions. These insights provide practical implications for policymakers, educators, and curriculum developers aiming to modernize vocational training systems through AI.
Pemberdayaan Masyarakat Melalui Implementasi Teknologi Tepat Guna: Sistem Pompa Air Tenaga Surya untuk Kemandirian Masjid Myori, Dwiprima Elvanny; Krismadinata, Krismadinata; Asnil, Asnil; Eliza, Fivia; Afnison, Wanda; Hidayat, Rahmat; Ranuharja, Fadhli
Jurnal Abdimas Kartika Wijayakusuma Vol 7 No 1 (2026): Jurnal Abdimas Kartika Wijayakusuma
Publisher : LPPM Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jakw.v7i1.1144

Abstract

Masjid Nurul Wujud di Kelurahan Baringin, Kota Padang, selama ini mengalami kendala pasokan air bersih akibat ketergantungan penuh pada sumber listrik dari PLN yang sering mengalami pemadaman dan beban biaya operasional yang tinggi. Kendala ini seringkali menghambat ketersediaan air untuk kegiatan ibadah dan sosial. Sebagai bentuk solusi berkelanjutan, program pengabdian masyarakat ini dirancang untuk mengimplementasikan sistem pompa air tenaga surya berkapasitas 550 Wp untuk menciptakan kemandirian energi dan ketersediaan air. Metode pelaksanaan kegiatan pengabdian kepada masyarakat ini menggunakan pendekatan Participatory Action Research (PAR). Metode ini mencakup observasi, instalasi sistem, pelatihan, dan pendampingan berkelanjutan. Hasil implementasi menunjukkan sistem bekerja secara optimal, mampu menghasilkan debit air 45 liter/menit dengan waktu pengisian tangki 1000 liter dalam 25 menit. Survei kepuasan masyarakat terhadap program ini menunjukkan skor rata-rata 4,3 dari 5, di mana 85% responden menyatakan puas terhadap manfaat yang dirasakan. Program ini berhasil meningkatkan kapasitas masyarakat dalam mengelola teknologi energi terbarukan dan dapat menjadi model replikasi bagi fasilitas publik lain di wilayah serupa.
Co-Authors Abdullah, MT, Dr. Rijal Ahyanuardi Ahyanuardi Akbar, Junaidi Ambiyar, Ambiyar Andesta Putri, Welly Andre Kurniawan Anggrila, Bunga Anhar, Nur Fajri Anwar Anwar Aprialdi Armaliany, Telvi Arwizet Arwizet, Arwizet Asnil Asnil Asnil Asnil Asnil Asnil Bustarino, Dandi Candra, Oriza David Nugraha Deby Cinthia Dhea fatma dilla Dochi Ramadhani Dori Yuvenda Dwiprima Elvanny Myori Dwiprima Elvanny Myori, Dwiprima Elvanny Erita Astrid Esa Hafizul A Fadhli Ranuharja Fahmi Rijal Fahmi Rizal Fitrah Hidayat Fitri, Dahlia Hidul Fivia Eliza Ganefri Ganefri . Gunawan, Andriyan Gusni Sushanti Hambali Hambali Hamdani Hamdani Harleni, Harleni Hasan Sayuti Mulya Hazman, Hanif Ilham Juliwardi Irma Husnaini Irwan Irwan Jlinus, Nizwardi Junil Adri Karunya Harikrishnan Kasman Rukun Kusuma, Puja Lativa Mursyida Lita Sari Muchlis Lubis, Arina Luthfini Mahesu Agni Zaus Maputra, Hedra Mhd Safei Minangsih, Maya Muhammad Djoni Bustan Muhammad Irsyad Muhammad Nasir Muhammad Nur, Khaliq Muhammad Triyo Rahmanto Mulianti Mulya, Hasan Sayuti Nizwardi Jalinus Nurhasan Syah Padrigalan, Kathleen Ebora Putra, Rusnardi Rahmat Rahmat Hidayat Refdinal Nazir Remon Lapisa Renny Permata Saputri Reza Muhardian Ricky Maulana Ridwan Ridwan Ridwan Riki Fajri Rahmat Rini Widyastuti Rizka Amalia Samira Laila Luthfiani Sari, Widia Sesrima Badri Shinta Sari Sri Haryati Sri Rizki Putri Primandari Sukardi, Sukardi Syafrijon, Syafrijon Syahril Syahril Tarig Elshaarani Telvi Armaliany Totoh Andayono Unung Verawardina Unung Verawardina, Unung Usmeldi Usmeldi V. Rajini Wanda Afnison Wibowo, Eko Avin Winda Lestari Siregar Wulan Juswita Sari Yahfizham Yahfizham Yahfizham Yahfizham yana, Liyana Fatrina Yandra, Muvi Yelfianhar, Ichwan Yezi Arnovia Yuliawati Yunus YUPELMI, MIMI Yus Donald Chaniago