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All Journal Voteteknika (Vocational Teknik Elektronika dan Informatika) Tibuana : Journal of Applied Industrial Engineering Jurnal Abadimas Adi Buana Wahana : Tridarma Perguruan Tinggi WAKTU: Jurnal Teknik UNIPA Jurnal Elemen Jurnal Qua Teknika JE-Unisla Jurnal Elkolind : Jurnal Elektronika dan Otomasi Industri Journal of Electrical Engineering and Computer (JEECOM) Prosiding SNAST Best : Journal of Applied Electrical, Science and Technology Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Industrial and Domestic Waste Management Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Indonesian Journal of Multidisciplinary on Social and Technology Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Sagita Rochman
Universitas PGRI Adi Buana Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering 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 Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Other

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Increasing the Effectiveness of Electricity-Generating Floors Through the Mechanical Energy of DC Generators Rochman, Sagita; Aini, Rasyida Shabihah Zukro; Billah, Mussafa
Journal of Electrical Engineering and Computer (JEECOM) Vol 5, No 2 (2023)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v5i2.6937

Abstract

The increasing electricity consumption of the Indonesian population requires renewable energy as an alternative to electricity generation supplies. Renewable energy can be formed through mechanical energy in its simplest form, namely in the form of a footrest. Generally, energy-harvesting floors that utilise human footsteps are designed with piezoelectric sensors. This sensor is responsible for converting mechanical energy into electrical energy. However, the power generated from piezoelectrics is only around 0.041 μW to 240.59 μW. So, in this study, an alternative design for a footstep floor is proposed capable of harvesting electrical energy using a DC generator. The proposed platform consists of a platform design that utilises the translational motion of the gears on the gear rack and is assisted by four springs surrounding the sides of the iron plate. Apart from that, the platform has a power management and storage system. Unlike controllers in general, solar charger controllers are used for charging (voltage and current in the accumulator) and flowing current to the load (lights). The subjects used in this floor test ranged from 20-100 kg. Compared to floors that use piezoelectrics, the results are that floors with DC generators experience an increase in power of around 0.62%. Hence, DC generators are more effective in harvesting electrical energy.
A Sustainable Sugarcane Bagasse Biochar–Bentonite Composite for Peroxide Value Reduction in Used Cooking Oil Wijayanti, Avissa Auryn; Yuniarto, Adhi; Nurhayati, Indah; Rochman, Sagita
Industrial and Domestic Waste Management Volume 5 - Issue 2 - 2025
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v5i2.945

Abstract

Used cooking oil underwent thermal and oxidative degradation due to repeated heating, resulting in increased peroxide levels and producing rancid odors, discoloration, and potential toxicity. In this study, the initial peroxide value of the used cooking oil was 56.42 meq O₂/kg, indicating significant oxidative degradation. The study evaluated the ability of activated sugarcane bagasse-bentonite (ASBB) and non-activated (SBB) composites to reduce peroxide values. Characterization was performed using SEM-EDX and FTIR, while adsorption efficiency was tested by varying the adsorbent dose (2–10 g) and treatment time (0–180 minutes). Peroxide reduction was analyzed using iodometric titration. The results showed that ASBB was more effective, with 10 g of ASBB and 180 minutes of treatment reducing the peroxide value by up to 82.3–84.5%.
Prototipe Sistem Penyiraman Tanaman Otomatis Dengan Monitoring Suhu Dan Kelembapan Pada Tanah Menggunakan ESP 32 Berbasis IOT Muhammad Syukur Alhamda; Mohamad Ilham; Sagita Rochman
Jurnal JE-UNISLA : Electronic Control, Telecomunication, Computer Information and Power System Vol 11 No 1 (2026): MARET
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/je-unisla.v11i1.1570

Abstract

Penyiraman tanaman merupakan faktor penting dalam menjaga pertumbuhan dan kesehatan tanaman, penyiraman tanaman yang dilakukan secara manual sering menimbulkan pemborosan air dan menguras tenaga, terutama ketika kondisi tanah yang sebenarnya masih lembab. Penelitian ini bertujuan merancang prototipe sistem penyiraman otomatis berbasis Internet of Things (IoT) menggunakan mikrokontroler ESP32. Sistem dilengkapi sensor kelembapan tanah, sensor suhu dan kelembapan udara (DHT11), sensor suhu tanah (DS18B20), serta sensor ultrasonik HC-SR04 untuk memantau ketinggian air tangki. Data ditampilkan melalui LCD dan aplikasi Blynk, dengan notifikasi otomatis dikirimkan lewat Telegram. Metode penelitian meliputi perancangan perangkat keras, pemrograman dengan Arduino IDE, integrasi IoT, serta pengujian sensor. Hasil menunjukkan pompa aktif saat kelembapan tanah <40% RH dan berhenti saat >75% RH, sedangkan sensor ultrasonik berhasil mengirimkan notifikasi ke telegram saat air kurang dari 15% dan air lebih dari 90%. Kesimpulan dari penelitian ini adalah sistem penyiraman tanaman otomatis berbasis ESP32 ini terbukti dapat meningkatkan efisiensi penggunaan air, mengurangi beban kerja manual petani, serta memberikan informasi kondisi lingkungan secara real-time. Penerapan teknologi IoT pada sistem ini berpotensi mendukung pertanian cerdas dengan cara yang praktis, ekonomis, dan mudah digunakan.
Design of an Internet of Things (IoT) based Main Reservoir Water Level Measuring Device at Siti Hajar Hospital Sidoarjo Adi Winarno; Rochman, Sagita; Nanda, Bagus
BEST Vol 8 No 1 (2026): BEST
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/zckxkc65

Abstract

The volume of water levels in hospital water reservoirs really requires full monitoring. Where water reservoirs often run out when the water is to be used. This is very fatal and hinders activities that must be carried out immediately. If this happens, it will result in the failure of ongoing activities at the hospital. This research aims to design a prototype that is capable of monitoring water levels in IoT-based hospital reservoirs. By designing a water level monitoring system in the reservoir using the HC-SR04 ultrasonic sensor as an input that measures water level and ESP32 as a microcontroller. The application produced from MIT App Inventor is a notification output and can display monitoring results. Based on the research results, it shows that the water level monitoring system in the reservoir can work well as expected, namely when the water is at the 25% limit, the application will send a notification to the smartphone in the form of sound so that users or technicians can find out and find the cause of the decreasing water level.
RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA BAYU (PLTB) TIPE VAWT BERDAYA 100 WATT UNTUK PENGISIAN DAYA SMARTPHONE Ezra Smith Tambunan; Sagita Rochman
Jurnal Qua Teknika Vol 16 No 01 (2026): Maret 2026
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v16i01.5052

Abstract

ABSTRAK Meningkatnya kebutuhan energi listrik, terutama untuk telepon seluler, menimbulkan tantangan baru dalam penyediaan sumber energi berkelanjutan. Penelitian ini bertujuan untuk merancang dan membangun turbin angin portabel tipe Savonius dengan daya keluaran 100 watt, yang dapat digunakan sebagai solusi pengisian daya telepon seluler di daerah terpencil. Turbin angin tipe Savonius dipilih karena kemampuannya beroperasi pada kecepatan angin rendah, serta desainnya yang sederhana dan mudah diimplementasikan. Hasil pengujian menunjukkan bahwa sistem ini mampu menghasilkan daya maksimum 100 watt pada kecepatan angin rata-rata 2-3 m/s. Dengan desain yang portabel, turbin angin ini berpotensi menjadi solusi energi terbarukan yang praktis dan ramah lingkungan untuk kebutuhan pengisian daya di berbagai lokasi.
RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA SURYA DAN SISTEM MONITORING DAYA LISTRIK PADA BEBAN RUMAH TIPE R 1 BERBASIS INTERNET OF THINGS Farrosy Zamir Irtany; Sagita Rochman
Jurnal Qua Teknika Vol 16 No 01 (2026): Maret 2026
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v16i01.5056

Abstract

ABSTRAK  Isu utama keterbatasan energi fosil dan tingginya konsumsi listrik mendorong penelitian ini untuk mengatasi tantangan monitoring Pembangkit Listrik Tenaga Surya (PLTS) skala rumah tangga. Dengan pendekatan eksperimen, sistem berbasis Internet of Things (IoT) dirancang menggunakan panel surya 50 Wp, sensor PZEM-017, mikrokontroler ESP32, dan aplikasi Blynk untuk pemantauan data real-time. Hasil pengujian menunjukkan sistem ini berhasil mengukur parameter listrik dengan akurasi tinggi, memiliki selisih rata-rata kurang dari 5%. Sistem ini juga mampu menghasilkan daya maksimum 33,77 W pada kondisi optimal. Dengan demikian, penelitian ini membuktikan efektivitas sistem yang dirancang untuk mendukung efisiensi energi rumah tangga dan mempercepat transisi energi terbarukan. 
Design and Implementation of a Real-Time Measurement Uncertainty Monitoring System for Orifice Gas Meters Using a Human–Machine Interface Philip Christian Muli; Sagita Rohman; Nugroho Budi Widodo
Jurnal Elektronika dan Otomasi Industri Vol. 13 No. 2 (2026): Jurnal Elkolind Vol. 13, No. 2, 2026 (Juli 2026)
Publisher : Program Studi Teknik Elektronika Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elkolind.v13i2.10088

Abstract

Orifice Gas Meter (OGM) systems are widely used in the oil and gas industry for gas flow measurement. In Indonesia, OGM systems employed for custody transfer applications are designed and operated in accordance with American Gas Association Report No. 3 and the Decree of the Director General of Consumer Protection and Trade Compliance No. 17 of 2025. Accurate gas flow measurement using an OGM system requires numerous physical parameters, including differential pressure, static pressure, temperature, fluid density, pipe diameter, and other instrument characteristics. Consequently, OGM systems must comply with the maximum allowable measurement uncertainty requirement of 1.0% at 95% of confident level. The evaluation of measurement uncertainty is a complex task that must be performed periodically by OGM operators. This study aims to design and implement a real-time measurement uncertainty monitoring system based on a Human–Machine Interface (HMI). The proposed methodology includes HMI interface development, integration with a flow computer through the Modbus communication protocol, and validation through gas flow simulation. The results demonstrate that the developed HMI system is capable of displaying measurement uncertainty information in real time with a high level of agreement compared to the standard Microsoft Excel-based calculation tool developed by the Directorate of Metrology, Ministry of Trade. The proposed system can assist OGM operators throughout Indonesia in evaluating measurement performance and supporting more accurate operational decision-making.
CLASSIFICATION OF THE QUALITY OF HONEY USING THE SPECTROFOTOMETER AND MACHINE LEARNING SYSTEM BASED ON SINGLE BOARD COMPUTER Rochman, Sagita; Mukhtar, M Nushron Ali
Tibuana Vol 2 No 01 (2019): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (82.059 KB) | DOI: 10.36456/tibuana.2.01.1774.45-49

Abstract

Honey is a natural sweet substance produced by bees with nectar flower ingredients containing various nutrients such as carbohydrates, proteins, amino acids, vitamins, minerals, plant pigments and aromatic components. Honey consists of water (17%), fructose (38.2%), glucose (31.3%), other disaccharides (5%), melezitose (<0.1%), erlose (0.8%) , other oligasakarida (3.6%), minerals (0.2%), amino acids (0.3%). It also contains anti-microbial substances, which can prevent some disease on human. Because it has a high economic value and contains unique substances, honey is often falsified. Honey can be faked in various ways by mixing natural artificial sweetener components or by giving the sugar (sucrose) into the honey, so it is dangerous if given to infants or people suffering from diabetes mellitus. The design of this research used spectrofotometer methode and pattern recognition algorithm (machine learning) system for classifying honey quality. It is based on honey having a chromophore group responsible for absorbance, electronic transition and color giver. We can also knowing the type of honey by using pattern recognition algorithm support vector machine.In this research is used three types of honey to using a spectrophotometer at a wavelength of 500 nm, the absorbance obtained in randu honey type of 0.523-0.654, coffee honey for 0.735-0.824, and rubber honey by 0.947-1.043.
DESIGN OF VERTICAL AXIS SAVONIUS WINDMILL FOR GENERATING ELECTRICITY USING PERMANENT MAGNET Rochman, Sagita
Tibuana Vol 3 No 01 (2020): Tibuana Vol.3 No.1 Tahun 2020
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.3.01.2206.61-66

Abstract

At present the use of wind energy in Indonesia is still relatively low, but has enormous potential. One reason is because the average wind speed in the territory of Indonesia is classified as low wind speed, which ranges from 3 m / s to 5 m / s making it difficult to produce electrical energy on a large scale. However, the wind potential in Indonesia is available almost all year long, making it possible to develop small-scale power generation systems. Innovations in modifying windmills need to be developed so that in conditions of low wind speeds can produce electrical energy. In this research, a prototype was developed by designing a vertical axis windmill power plant model Savonius using a permanent magnet generator, which can produce optimal electrical energy by utilizing relatively low wind speeds.From the generator test it was found that with a rotor rotation of 50 rpm up to 500 rpm can produce an electrical voltage of 0.02V to 10V and an electric current of 0.60A to 4.53A.
Rancang Bangun Sistem Monitoring dan Kontrol Daya Listrik Berbasis NodeMCU dan Sensor PZEM-004T untuk Optimalisasi Penggunaan Energi pada UMKM Skala Kecil Rizki Julianto; Sagita Rochman
Indonesian Journal of Multidisciplinary on Social and Technology Vol. 4 No. 3 (2026): Juli - Oktober
Publisher : PT Ilmu Data Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/ijmst.v4i3.13445

Abstract

Sistem listrik prabayar konvensional mengharuskan pengguna memantau sisa saldo secara langsung pada meter listrik, sehingga kurang praktis dan berpotensi menyebabkan keterlambatan pengisian ulang token. Penelitian ini bertujuan merancang dan membangun sistem monitoring konsumsi energi listrik serta top up token prabayar berbasis Internet of Things (IoT) yang dapat dipantau dan dikendalikan secara real-time melalui aplikasi Blynk. Sistem menggunakan mikrokontroler ESP32, sensor PZEM-004T, LCD I2C 16×2, keypad 4×4, dan relai sebagai pengendali beban listrik. Pengujian dilakukan dengan membandingkan hasil pembacaan sensor terhadap watt meter digital serta menguji fungsi top up, pengurangan saldo, pengendalian relai, dan monitoring melalui Blynk. Hasil pengujian menunjukkan sensor PZEM-004T memiliki error sebesar 0,50% pada tegangan, 4,63% pada daya, 3,97% pada energi, dan 0% pada frekuensi, sedangkan error arus dan faktor daya masing-masing sebesar 14,29% dan 15,69%. Seluruh proses top up, pengurangan saldo otomatis, serta pemutusan dan penyambungan beban melalui relai berhasil bekerja sesuai rancangan. Kesesuaian data antara LCD dan aplikasi Blynk mencapai 100%. Dari lima kategori pengujian fungsional, seluruhnya berhasil sehingga tingkat keberhasilan sistem mencapai 100%. Sistem yang dikembangkan mampu memberikan kemudahan dalam pemantauan konsumsi energi dan pengelolaan saldo listrik prabayar secara praktis dan real-time, serta mendukung efisiensi penggunaan energi pada UMKM skala kecil melalui pengawasan konsumsi dan pengendalian beban secara otomatis.
Co-Authors Abda Abda Achmad Alfianto Adhi Yuniarto Adi Winarno Aditya Ilham Afif Nuril Musthofa Aini, Rasyida Shabihah Zukro Akbar Sujiwa Akhmad Solikin Alfianto, Achmad Andy Hermawan Atmiasri Bagus Ilham Yunianto Billah, Mussafa Budi Prijo Sembodo Budi Prijo Sembodo Budi Prijo Sembodo Prijo Sembodo Danu Krama Dwi Arman Prasetya DWI HASTUTI Edi Nasrulloh Evawati , Diana Ezra Smith Tambunan Farrosy Zamir Irtany Ilham, Aditya Indah Nurhayati Indri Suryawati Indri Suryawati Jariyah Jodhy Satria Ramadhan Krishna Wijayakusuma Kusnawati Tjahjani, Ida Luthfi Hidayat M. Nushron Ali Mukhtar Mochamad Taufiq Irvan Efendy Mohamad Ilham Mohamad Ilham Muchammad Rizky Firmansyah Muhamad Abdul Jumali Muhammad Syukur Alhamda Muhammad Thoyibin Mukodah, Roib Nafisah, Nihayatun Nanda, Bagus Nugroho Budi Widodo Philip Christian Muli Rivaldo Josua Jetrin Rolos Rizki Julianto Roib Mukodah Rosariawari, Firra sembodo, budi prijo Sembodo, Budi Prijo Sembodo Prijo Siti Nuurlaily Rukmana, Siti Nuurlaily Sri Widyastuti surya Wijaya, WILDAN Taufiq Irvan Efendy, Mochamad Titik Koesdijati Widiarto, budi Wijayanti, Avissa Auryn Wildan Surya Wijaya Yitno Utomo Yunia Dwie Nurchayanie Yunianto, Bagus Ilham