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All Journal Jurnal Dedikasi PROSIDING SEMINAR NASIONAL Transmisi: Jurnal Ilmiah Teknik Elektro ELKHA : Jurnal Teknik Elektro Jurnal Sains dan Teknologi Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik WARTA Emitor: Jurnal Teknik Elektro CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Jurnal Komtika (Komputasi dan Informatika) Jurnal Litbang Sukowati : Media Penelitian dan Pengembangan Journal of Electrical Vocational Education and Technology Integrated Science Education Journal Urecol Journal. Part E: Engineering Prosiding University Research Colloquium Abdi Teknoyasa Jurnal Penelitian Teknologi Informasi dan Sains Jurnal Komtika (Komputasi dan Informatika)
Agus Ulinuha
Universitas Muhammadiyah Surakarta
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Pengembangan Sistem Cerdas untuk Deteksi Penyakit Jantung dan Rekomendasi Penatalaksanaannya Ulinuha, Agus; Rachmawati, Nurul
Prosiding University Research Colloquium Proceeding of The 10th University Research Colloquium 2019: Bidang Teknik dan Rekayasa
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Latar Belakang: Penyakit jantung menduduki peringkat terataspenyebab kematian dibandingkan stroke, kanker paru-paru, kankerpayudara, dan AIDS. Berdasarkan data Heart Association, setiapdua menit, satu orang mengalami serangan jantung mendadak.Masyarakat awam kurang memperhatikan persoalan penyakitjantung karena kurangnya pemahaman, tidak dirasakannya gejala,serta terbatasnya jumlah dokter spesialis jantung. Diperlukan suatuteknologi yang mampu mengadopsi cara berfikir dokter berupakecerdasan buatan sebagai sarana untuk membantu diagnosapenyakit jantung dan rekomendasi penatalaksanaannya.Tujuan: Makalah ini menyajikan pengembangan sistem informasiuntuk mengetahui jenis penyakit jantung berdasarkan gejala-gejalayang dirasakan, serta memberikan solusi berupa cara pencegahandan pengobatannya.Metode: Realisasi dari tujuan tersebut diwujudkan dalam sebuahaplikasi diagnosa penyakit jantung berbasis desktop yang secarainteraktif memberikan pertanyaan untuk dijawab oleh pasien dankemudian disimpulkan menggunakan metode inferensi forwardchaining.Hasil: Terdapat 4 jenis penyakit jantung yang akan dideteksi, yaituSindrom Koroner Akut (ACS), Penyakit Gagal Jantung (HeartFailure), Penyakit Demam Reumatik (Rheumatic Fever) dan PenyakitJantung Bawaan Biru (PJB Sianotik). Meskipun hasil diagnosis telahdiverifikasi serta cukup valid, sistem ini tidak dimaksudkanmenggantikan peran dokter spesialis jantung, namun dapatmembantu secara signifikan tugas dokter untuk mengetahui indikasiawal penyakit jantung. Manfaat penting lainnya adalah kemungkinanpenggunaannya secara luas oleh masyarakat untuk mengetahui danmengantisipasi penyakit jantung, terutama pada lokasi yang jumlahdokter spesialis jantung-nya kurang memadai.
Pemanfaatan Padi Varietas Inpago Unsoed 1 Sebagai Solusi Pemberdayaan Petani Kabupaten Sragen pada Masa Kekeringan Ulinuha, Agus; Rohman, Fathur
Prosiding University Research Colloquium Proceeding of The 11th University Research Colloquium 2020: Bidang Pengabdian Masyarakat
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Ketergantungan pada ketersediaan air bagi petani merupakan hal yang niscaya. Tanaman padi merupakan salah satu jenis komoditas pertanian yang menjadi andalan petani di Indonesia. Perubahan iklim yang menyebabkan kadar air yang berkurang secara signifikan pada musim kemarau menyebabkan kesulitan bagi petani untuk menanam padi pada masa tersebut. Terdapat 2 kemungkinan yang sama buruknya yaitu kegagalan panen karena kekurangan air atau biaya tinggi untuk mengairi tanaman padi agar dapat bertahan hidup. Pemanfaatan varietas yang toleran terhadap kekeringan merupakan solusi bagi petani untuk mengatasi persoalan tersebut. Kebutuhan air yang dapat ditekan akan memberikan 2 keuntungan dari pemanfaatan varietas tersebut berupa kemungkinan pemanfaatan lahan di musim kemarau dan biaya pengairan yang dapat diminimalkan. Kemungkinan pengelolaan tanaman secara organik, ketahanan terhadap hama dan penyakit serta kualitas hasil yang baik merupakan keunggulan lain dari varietas tersebut. Hal ini akan memberikan keuntungan yang optimal bagi petani ditengah kondisi lahan yang kering. Pemanfaatannya secara ekstensif akan meningkatkan pemanfaatan lahan secara optimal, dukungan terhadap ketahanan pangan dan peningkatan penghasilan petani.
Prototipe Pembangkit Listrik Tenaga Mikrohidro untuk Penerangan Jalan dengan Kendali Sensor LDR Ulinuha, Agus; Putra, Tommi S.
Prosiding University Research Colloquium Proceeding of The 16th University Research Colloquium 2022: Bidang Pengabdian Masyarakat
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Energi potensial air dapat dimanfaatkan sebagai pembangkit listrik untuk kebutuhan listrik pada daerah yang belum teraliri listrik PLN. Hal ini memberikan kontribusi bagi masyarakat di daerah tertentu untuk penerangan jalan. Pengujian Prototipe dilakukan di desa Karangbangun, Kecamatan Matesih, Kabupaten Karanganyar. Adapun energi potensial air diperoleh dari aliran Kali Samin yang padanya terdapat bendungan yang betujuan untuk aliran sungai menuju persawahan. Aliran air ke sawah tersebut dimanfaatkan untuk menggerakan turbin air yang terhubung dengan generator sehingga membangkitkan tegangan. Hasil pengujian awal diperoleh tegangan 17 Volt untuk variasi beban lampu 6 x 5 W dan 1 x 10 W. Dari pengamatan lapangan diperoleh kondisi bahwa lampu menyala cukup terang. Untuk pemanfaatan sistem secara real digunakan 2 lampu LED DC dengan daya 4 W dan 5 W. Beban tersebut terhubung dengan sensor LDR sebagai kendali pensakelaran. Arus pengisian baterai yang terukur adalah 1,4 Ampere. Kecepatan pada putaran turbin yang tercatat adalah 800 rpm yang telah dapat menyalakan lampu LED DC sebagai penerangan jalan.
Desain dan Implementasi Alat Cuci Mobil Otomatis dan Pemanfaatan Piranti Pengatur PLC Omron CP1E Ulinuha, Agus; Pratama, Dendy
Jurnal Komtika (Komputasi dan Informatika) Vol 1 No 2 (2017)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/komtika.v1i2.1788

Abstract

Kegiatan mencuci mobil merupakan kegiatan yang selain melelahkan juga membutuhkan waktu yang cukup lama. Pada saat ini tersedia jasa pencucian mobil, namun tetap dibutuhkan waktu yang panjang untuk mengantri dan menunggu proses pencucian mobil. Dengan berkembangnya sistem otomasi elektronik, mulai dikembangkan peralatan cuci mobil otomatis yang memungkinkan mobil dicuci secara drive-through. Pengemudi dapat tetap berada di ruang kemudi dan mobil dicuci dengan proses yang sekuensial, meliputi penyemprotan, penyabunan, pembilasan dan pengeringan. Dalam penelitian ini peralatan alat cuci mobil otomatis memanfaatkan motor induksi, paket alat cuci, dan kompresor sebagai komponen sistem. Secara operasional, komponen peralatan tersebut diatur kinerjanya melalui Programmable Logic Controller (PLC) CP1E. Sedangkan sebagai konstruksi pendukung, dibuat kerangka mesin cuci mobil dengan bahan besi yang disambungkan dengan las. Meskipun hasil pencucian belum dalam taraf yang sama bersihnya dengan pencucian manual, proses yang cepat dan menyenangkan akan menjadikan konsep ini menarik untuk terus dikembangkan dengan potensi yang baik pada masa yang akan datang.
Comparative Analysis of Sensor Reading Accuracy Between Arduino and ESP32 Microcontrollers for TDS Sensor Measurements Rahman, Abdul; Ulinuha, Agus
Integrated Science Education Journal Vol 7 No 2 (2026): March
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v7i2.2771

Abstract

Purpose of the study: This study aims to compare the performance of Arduino UNO and ESP32 microcontrollers in TDS sensor measurements, evaluating reading accuracy, response speed, and reading stability to recommend the most suitable microcontroller platform for water quality monitoring applications. Methodology: Tools & Hardware: TDS sensor, Arduino UNO (ATmega328P, 10-bit ADC), ESP32 NodeMCU (12-bit ADC), TDS meter (reference instrument). Methods: Waterfall methodology, literature review, direct observation, potentiometer testing, and voltage measurement. Water samples tested at 101, 201, 300, 406, and 515 PPM concentrations, each with three repetitions at room temperature (~20–21°C). Main Findings: Arduino UNO achieved average voltage errors of 0.21%–2.12% across all TDS concentrations, compared to ESP32's 13.1%–54.32%. ESP32 misread 101 PPM as 48 PPM (54.32% error). Arduino UNO's standard deviation was 0.064 ADC versus ESP32's 2.019 ADC 31.5 times more variable confirming Arduino UNO's superior accuracy and stability for TDS sensor measurements. Novelty/Originality of this study: This Arduino UNO achieved average voltage errors of 0.21%–2.12% across all TDS concentrations, compared to ESP32's 13.1%–54.32%. ESP32 misread 101 PPM as 48 PPM (54.32% error). Arduino UNO's standard deviation was 0.064 ADC versus ESP32's 2.019 ADC — 31.5 times more variable confirming Arduino UNO's superior accuracy and stability for TDS sensor measurements.
DESAIN DAN IMPLEMENTASI SISTEM INSTRUMENTASI PEMBANGKIT LISTRIK TENAGA SURYA TERINTEGRASI JALA-JALA BERBASIS INTERNET OF THINGS Alfin Muhammad Nugroho; Agus Ulinuha
Journal of Electrical Vocational Education and Technology Vol. 9 No. 1 (2026): Journal of Electrical Vocational Education and Technology, Volume 9 Issue 1, Ju
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JEVET.0091.01

Abstract

Abstrak Pembangkit Listrik Tenaga Surya (PLTS) terus mengalami peningkatan karena sistem ini memiliki prosedur instalasi yang relatif sederhana serta menghasilkan emisi lingkungan yang rendah. Namun, sebagian instalasi PLTS belum dilengkapi dengan sistem instrumentasi dan monitoring terintegrasi untuk mengevaluasi kinerja secara langsung dan komprehensif. Studi ini difokuskan pada perancangan dan penerapan sistem instrumentasi berbasis Internet of Things (IoT) yang digunakan untuk memantau serta mengevaluasi kinerja PLTS secara menyeluruh. Sistem dikembangkan dengan mengintegrasikan data inverter on-grid dan kWh meter ekspor–impor, serta pengukuran kondisi lingkungan yang meliputi suhu panel, suhu dan kelembapan udara, serta intensitas radiasi matahari. Data diproses menggunakan mikrokontroler ESP32, disinkronkan melalui jaringan internet, dan disajikan pada platform berbasis web secara real-time dengan fitur penyimpanan historis. Implementasi dilakukan pada instalasi PLTS on-grid di MA Darul Ihsan Muhammadiyah Sragen. Pengujian yang dilakukan menunjukkan bahwa keluaran sistem memiliki deviasi yang rendah terhadap data yang diperoleh dari instrumen referensi, sehingga menunjukkan tingkat keandalan yang tinggi. Pada lokasi, sistem dilengkapi dengan display LED TV untuk visualisasi yang lebih detail. Sistem instrumentasi dan monitoring berbasis Internet of Things (IoT) ini memungkinkan analisis kinerja sistem secara real-time serta memberikan tampilan visual yang edukatif melalui layar LED TV. Implementasi yang dikembangkan berpotensi menjadi solusi praktis dalam monitoring PLTS on-grid sekaligus media pembelajaran energi terbarukan. Abstract Solar Power Plants (SPPs) continue to grow in popularity due to their relatively simple installation and low environmental emissions. However, some SPP installations are not yet equipped with integrated instrumentation and monitoring systems to evaluate performance directly and comprehensively. This study focuses on the design and implementation of an Internet of Things (IoT)-based instrumentation system to comprehensively monitor and evaluate SPP performance. The system was developed by integrating on-grid inverter data and export-import kWh meters, as well as environmental condition measurements, including panel temperature, air temperature, and humidity, and solar radiation intensity. Data is processed using an ESP32 microcontroller, synchronized via the internet, and presented on a web-based platform in real time with a historical storage feature. Implementation was carried out on an on-grid SPP installation at MA Darul Ihsan Muhammadiyah Sragen. Tests conducted showed that the system output had a low deviation from the data obtained from the reference instrument, thus demonstrating a high level of reliability. The system is equipped with an LED TV display at the location for more detailed visualization. This IoT-based instrumentation and monitoring system enables real-time system performance analysis and provides educational visual displays via an LED TV screen. The developed implementation has the potential to be a practical solution for monitoring on-grid solar power plants and a learning tool for renewable energy.
Analisis Tekno Ekonomi Pembangkit Photovoltaic Pada Skema Load Sharing Di Gedung Pendidikan Sragen Azzam Reza Ahmad Mujahid; Agus Ulinuha
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 2 (2026): Juni: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i2.4227

Abstract

The increasing demand for electricity and high dependence on the utility power grid have driven the adoption of photovoltaic (PV) power generation as an environmentally friendly alternative energy source. This study aims to analyze the techno-economic feasibility of a load-sharing PV power generation system, focusing on technical analysis, operational costs, electricity bill savings, and environmental impacts. The research was conducted using quantitative methods to compare energy from photovoltaic generation and the grid, carbon emission calculations using an emission factor of 0,87 kgCO₂/kWh, and economic evaluation through parameters such as Net Present Value (NPV), Return on Investment (ROI), Cost of Energy (COE), and Payback Period (PP). The research results indicate that the photovoltaic panel generation system enables reducing utility grid energy consumption and reducing carbon emissions by 4,85 tons of CO₂ in 2024, increasing to 8,45 tons of CO₂ in 2025. The economic analysis indicates that the NPV value is not yet optimal; however, the ROI stands at 15%, the COE is Rp. 980.08/kWh, and the Payback Period is 6,56 years. The system is feasible for long-term investment. Overall, the implementation of the photovoltaic power plant demonstrates good potential in supporting carbon emission reduction, increasing the utilization of renewable energy, and reducing dependence on fossil-based energy.
Embedded Instrumentation System Using Acquisition Mechanism for BLDC-Powered Electric Vehicle Agus Ulinuha; Ibnu Shokhibul Khak
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol. 8 No. 2 (2022): June
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v8i2.23634

Abstract

The primary component of an electric vehicle is the electric motor. In order for the motor to operate properly, some measurement and data acquisition are required for monitoring and controlling its performance. For this purpose, an embedded system is developed and attached to the vehicle. This paper presents the design and implementation of an embedded instrumentation system that includes a data acquisition device, data processor, and data display. A complete prototype-scale electric vehicle was developed and equipped with an embedded instrumentation system. A Brushless DC (BLDC) motor is employed as prime-mover taking power from a 10-Ah Battery. The input parameter is determined by the vehicle’s throttle opening, and the output variables are measured and processed. For the purpose of data acquisition, the system relies on Arduino and Raspberry Pi as processing and monitoring devices. The data and information are displayed on the vehicle dashboard to indicate the real-time vehicle performance and some related information. These include speed, power, motor temperature, distance achieved, and estimated distance that can still be reached with the remaining battery capacity. The data and information are graphically and numerically displayed, which would be useful for steering that enhances system efficiency. The system was tested in the lab and real system, where it demonstrated fine accuracy. The average deviations of the electrical data displayed in the instrumentation system with those given by the standard meter are 0.25 Volt, 0.03 Amp, and 0.43 Watt for voltage, current, and power, respectively. From a mechanical standpoint, the average deviations of speed and torque are 1.2876 km/h and 1.218*10-4 Nm, respectively. The contributions of this research are the development of a complete system to be operated in real conditions, and validation of the displayed information with standard measurement and manual calculation.
IoT-Based Energy Consumption Analysis of Electric Vehicles: The Effect of VESC Motor Current Limits Fahri Ardianto; Ulinuha, Agus
Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro Vol. 10 No. 2 (2026)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jgf76473

Abstract

This study presents an IoT-based battery monitoring system and analyzes the effect of the VESC motor current limit on battery current and energy consumption. The research focuses on an electric vehicle prototype developed by the Electric Car Research Center (ECRC) at the Faculty of Engineering, Universitas Muhammadiyah Surakarta. The system integrates an ESP32-S3, PZEM-017 sensor, Neo-7M GPS, and Firebase database for real-time monitoring. Experiments were conducted at five current limits 10-30 A with three replications. Results show that increasing the current limit from 10 A to 30 A increased average battery current from 1.30 A to 3.53 A (F(4,10) = 285.47, p < 0.001, R² = 0.991), energy consumption from 6.54 Wh to 12.90 Wh (F(4,10) = 298.66, p < 0.001, R² = 0.992), and torque from 3.60 Nm to 5.43 Nm (F(4,10) = 142.35, p < 0.001, R² = 0.983), but decreased energy efficiency from 152.90 to 77.52 km/kWh. The expanded uncertainties for all measurements remained below 1.5%, confirming high data precision. These findings quantify the performance-efficiency trade-off, providing a basis for optimizing current limit settings in energy-efficient electric vehicles.
Techno-economic Analysis of Investment and Operation of Photovoltaic Panels under a Load Sharing Scheme Sandy Yudhatama; Agus Ulinuha
Integrated Science Education Journal Vol 6 No 2 (2025): May
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v6i2.1676

Abstract

Purpose of the study: This study aims to evaluate the techno-economic feasibility of the operational period of a 40 kWp on-grid Photovoltaic Panel with a load sharing scheme at Ella Skincare, focusing on technical analysis, investment and operational costs, and the potential for electricity cost savings. Methodology: This study used a quantitative method by analyzing energy consumption data and electricity bills over 6 months before and 6 months after installing the Photovoltaic Panel. The system used 60 Vertex TSM-DE21 panels and a Solis S5-GC50K inverter. The data were processed to calculate the Net Present Value (NPV), Return on Investment (ROI), Levelized Cost of Electricity (LCOE), and Payback Period (PP). Main Findings: The research results showed a 33.9% reduction in PLN electricity power consumption and more than 30% savings in electricity costs each month after the installation of the Photovoltaic Panel. Although the NPV had not yet exceeded the initial investment, the ROI reached 13.64% in the first year, indicating significant financial potential in the long term. Novelty/Originality of this Research: This study provides empirical evidence on the effectiveness of the load sharing scheme in improving efficiency and reducing operational electricity costs in the commercial sector. This study offers new insights into the investment feasibility of Photovoltaic Panels in Indonesia, particularly in the context of utilizing renewable energy to reduce dependence on conventional energy sources.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Rahman Abdul Rahman Aditya, Agellio Farras Afdal Bintang Syahputra Agus Anggoro Sigit Agus Triyono Alfin Muhammad Nugroho Almas Ghulam Riza Andi Suhendi Andre Setyawan Azzam Reza Ahmad Mujahid Basith, Abdul Budiyono, Yusuf Dimas Septian Dwi Putra Eny Purwandari Fahri Ardianto Faisal Ardi Nugroho Faisal Ardi Nugroho Fathur Rohman Fathur Rohman, Fathur Hari Bangun Ibnu Shokhibul Khak Ibnu Shokhibul Khak Ibnu Shokibul Khak J Jatmiko Jatmiko Jatmiko Jatmiko, J Khak, Ibnu Shokhibul Khak, Ibnu Shokibul Kuswaji Dwi Priyono M. Burhanduin Ubaidillah M. Rusdi Wibowo Muchammad Ardan, Ramadhani Muhammad Afan Muhlasin Muhammad Alim Alfaridzi Muhammad Arif Muhammad ‘Alim Alfaridzi Muhammad ‘Alim Alfaridzi Muhlasin, Muhammad Afan Muhtadi - Nugroho, Faisal Ardi Nurul Rachmawati Prabawati, Ervie Sukma Pratama, Dendy Pratama, Dendy Pratama, Dendy Priyono Priyono Priyono Putra, Dimas Septian Dwi Putra, Tommi S. Rachmawati, Nurul Rizky Dian Wicaksana Sandy Yudhatama Santoso, Satria Adji Sidiq Permono Nugroho Siti Zubaidah Tommi S. Putra Umar Umar Hasan Wahyu Adi Widodo Wahyudi Wahyudi Wawan Kurniawan Wicaksana, Rizky Dian Widodo, Wahyu Adi Yudhatama, Sandy Yundari, Yundari Yusuf Budiyono Yusuf Budiyono