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All Journal Jurnal Edukasi Elektro JTEV (Jurnal Teknik Elektro dan Vokasional Jurnal Simetris Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer JTERA (Jurnal Teknologi Rekayasa) TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Teknika Jurnal Teknologi dan Manajemen Eksergi: Jurnal Teknik Energi Electrician : Jurnal Rekayasa dan Teknologi Elektro Kohesi: Jurnal Sains dan Teknologi SNTE
Legenda Prameswono Pratama
Department Of Electrical Engineering, Jakarta Global University
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology 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 Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Performance Enhancement of 100WP Monocrystalline Solar Panel using Mirror Reflectors Dionova, Brainvendra Widi; Rahmanda, Ibnu Dwi; Putri, Arisa Olivia; Eteruddin, Hamzah; Pratama, Legenda Prameswono; Hendrawati, Dwiana; Abdulrazaq, Mohammed N.
Jurnal Edukasi Elektro Vol. 9 No. 2 (2025): Jurnal Edukasi Elektro Volume 9, No. 2, November 2025
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v9i2.85796

Abstract

This research analyzes how the reflection of sunlight intensity affects the power generated by a 100WP monocrystalline solar panel with the addition of various reflector tilt angles. An experimental method was used to conduct this analysis by comparing three tests: a solar panel without a reflector, with a 60° angled reflector, and with a 75° angled reflector. Data was collected at one-hour intervals from 09:00 to 16:00 WIB, measuring parameters such as temperature, intensity, voltage, current, and power. The results showed that the addition of a flat mirror reflector significantly improved the performance of the solar panel. With a 75° tilt angle, the total power generated was 373.32W, compared to the total power generated at 60° of 366.93W and without a reflector of 208.62W. The highest power peak was achieved at 13:00 WIB with the 75° reflector at 69.31W. This research demonstrates that a reflector tilt angle of 75° is the most optimal for increasing the efficiency of monocrystalline solar panels as it distributes sunlight more evenly across the panel surface. The recommendation for future research is the utilization of software-based simulations and IoT integration for real-time monitoring, to strengthen experimental data validation and expand the application of this technology at both industrial and household scales.
Designing SMART-PJU Based on LoraWAN for Rural Light System Pratama, Legenda Prameswono
Eksergi Vol. 19 No. 03 (2023): SEPTEMBER 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i03.4975

Abstract

In the industrial era 4.0, every industrial tool or equipment and building already uses automation via IoT, especially in public street lighting. Using a SMART-PJU-based LoraWAN system can minimize electrical energy use by using dimmer schedule control and ON/OFF schedule control. Using a dimmer schedule for PJU lights, the energy is set maximum of 10 amperes depending on the dimmer module used. The SMART-PJU has a LoRa module to control and monitor them via a wireless network. This research used the LoRa-EBYTE E32-DTU(915L20) module as the data sender and receiver. LoRa-EBYTE E32-DTU(915L20) with a frequency of 915 MHz to 931 MHz and an RS232/RS485 connector. The furthest distance that can be reached during testing at the Jakarta Global University campus, with a frequency of 922 MHz, is 450 meters, 344 meters, and 215 meters at three different points. The SMART-PJU system can regulate light, ON/OFF control, and ON/OFF schedule and can see the on or off status of the digital output on the Arduino. To ensure the module is on or off. Furthermore, it can monitor electricity usage in the PJU, such as power, voltage, current, power factor, and frequency, via the PZEM-016 sensor. The comparison value using the dimmer schedule at 12 hours is 375.62 Wh without the dimmer, 1085.04 Wh, and the average comparison error value of the PZEM-016 sensor reading with a multimeter is 0.1 current, 0.009 voltage, 0.3 power at each dimmer setting from 20 to 80. All data are obtained and viewed using Node-red software. By using Node-red software, users can control and monitor easily because Node-red uses language and displays that are easy for users to understand.
Automatic Fire Extinguishing System Using Smoke Detector and Heat Detector Based on Programmable Logic Controller Dionova, Brainvendra Widi; Setiawan, Antonius Darma; Vresdian, Devan Junesco; Pratama, Legenda Prameswono; Abdullah, Muhammad Irsyad; Mohammed, M. N.
Eksergi Vol. 20 No. 01 (2024): JANUARY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i01.5406

Abstract

Fire is a disaster that is often encountered throughout the year. This research aims to protect and mitigate the worst possibility of a fire disaster. A PLC automatically creates the work system of this tool, using it as the controller. This tool utilizes two sensors: a smoke detector and a heat detector. Two smoke detectors and one heat detector automatically make the system, each providing input to the PLC. The system splits into two parts: Alarms 1 and 2. If any of the three sensors send input to the PLC, Alarm 1 triggers a buzzer and a yellow light. Alarm 2 occurs if 2 or 3 sensors provide input to the PLC and provide output as the bell lights up, the flash lights up, and the solenoid opens to release Co2 into the room.  
Linearity of Soil Moisture in Residential Plants Using Soil moisture sensor YL-69 Vresdian, Devan Junesco; Pratama, Legenda Prameswono; Trisnaaji, Pius Adrian; Setyono, Rizka Sabila; Jaharadak, Adam Amril; Al-yousif, Shahad
Eksergi Vol. 20 No. 01 (2024): JANUARY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i01.5412

Abstract

Planting media for plants is very important because various kinds of ornamental plants used in housing can grow well according to the needs of their respective conditions. Soil moisture is generally defined as the water contained on the unsaturated soil surface of the Earth. Soil moisture has an influence on the level of moisture needed by plants. The use of soil moisture sensor YL-69s is very popular, especially in the last 2 - 3 decades, where these sensors can review soil moisture and soil conditions in percentage form. However, how can the value of the soil moisture sensor YL-69 itself represent actual conditions? For this reason, a design was carried out with the aim of seeing the linearity value of the sensor. In the overall test the average error value produced has reached less than 3%. In this study, "Nor" conditioning needs to be developed again to further specify whether the plant's moisture needs require a separate percentage to reduce the margin gap that appears at the transition between dry and wet conditions. In this study, using the YL-69 soil moisture sensor produced an error value up to 6.16%, especially in the "Nor" condition with a conditioning difference of 13%.
Design of Alternative Energy Using Thermoelectricity by Utilizing a Dispenser Heat Tank Using IOT Pratama, Legenda Prameswono; Wilyanti, Sinka; Setiawan, Adi; Hamzah, Hamzah; Manfaluthy, Mauludi; Arief, Yanuar Zulardiansyah; Al-Humairi, Safaa Najah Saud
Eksergi Vol. 20 No. 02 (2024): MAY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i02.5805

Abstract

Energy is an object that can move through essentialreactions; increasing population growth is one of the factors forincreasing energy needs. One of the initiatives initiated was thecreation of a Thermal Electric Generator (TEG). The formulationof the problem in this study is to determine the output voltage,current, and power generated by the thermoelectric as analternative energy and to determine the effect of temperature onthe thermoelectric. The goal is to determine the amount of outputthe thermoelectric generates when it gets a heat source from thedispenser. The data source in this study was obtained from testingthe tools made. The test results show the effect of temperature onthe thermoelectric tested for 120th minutes test of max 5.96 Voltswith a water temperature in the dispenser tank of 73C withoutusing a step up using six pieces of thermoelectric arranged inseries.
Rancang Bangun Alat Pengukuran Viskositas Menggunakan Sensor UGN3503 pada Oli Berbasis Android Dionova, Brainvendra Widi; Supriyono, Eko; Hutagalung, Nirmalasari; Vresdian, Devan Junesco; Pratama, Legenda Prameswono; Hapsari, Anindya Ananda
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Viskositas adalah merupakan ukuran kekentalan fluida yang menyatakan besar atau kecilnya gesekan didalam fluida. Penelitian ini bertujuan untuk mengetahuin nilai dari viskositas sebuah Oli dan mengembang alat ukur viskositas bola jatuh menjadi lebih modern karena menggunakan android sebagai basisnya. Dalam penelitinaan ini menggunakan Metode bola jatuh. Bola dijatuhkan secara bebas kedalam fluida oli. Untuk dapat mengetahui kecepatan bola jatuh, di luar pipa diberi Sensor untuk mendapatkan waktu tempuh bola dari titik satu ke titik dua pada jarak ketinggian tertentu, sehingga diperoleh data waktu tempuh bola jatuh (t) dan jarak tempuhnya (h). Nilai koefisien viskositas fluida ditentukan berdasarkan persamaan dari gayagaya yang bekerja pada bola magnet yang bergerak di dalam pipa. Gaya-gaya tersebut antara lain gaya apung, gaya gesekan berdasarkan hukum Stokes, dan gaya berat. Dari waktu yang didapatkan oleh Arduino dan dikirim keandroid maka andoid akan memproses data dan ditampikan layar smartphone, berdasarkan penelitian oli federal semakin tinggi type oli maka tingkat kekentalan akan semakin tinggi, seperti 1. Oli Federal tipe Matic 30 Eco maxx dengan nilai viskositas = 146.4234339 Pa/s, 2. Oli Federal tipe Matic Ultratec 10W-30 dengan nilai viskositas = 189.8221584 Pa/s, 3. Oli Federal tipe Matic Ultratec 20W-50 dengan nilai viskositas = 341.8454277 Pa/s. Dan oli yang sudah digunakan 1 bulan maka nilai viskositasnya akan menurun seperti Oli Federal tipe Matic 30 Eco maxx (Bekas 1 bulan) dengan nilai viskositasnya menjadi 94.49722275 Pa/s. Penelitian ini memudahkan pengguna dalam mengukur tingkat kekentalan oli yang baru maupun sudah digunakan.
Rancang Alat Peringatan Bahaya Banjir dengan Sistem IoT di Katu Lampa Kota Bogor Jawa Barat Sobar, Dedi; Pratama, Legenda Prameswono; Hapsari, Anindya Ananda; Dionova, Brainvendra Widi; Vresdian, Devan Junesco; Hutagalung, Nirmalasari
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Banjir merupakan salah satu bencana alam yang dapat di prediksi dari hulu ke hilir. Kenaikan debit air Sungai menjadikan ini penting pada sisi hilir untuk meminimalisir dampak yang di timbulkan dari hasil luapan. Pada penelitian kali ini, penulis memaparkan rancang bangun sistem monitoring dan peringatan dini banjir dengan mengunakan media internet of think dengan menitik beratkan pada akurasi alat dan implementasi langsung. Memulai penelitian dengan menggunakan beberapa langkah metode penelitian, seperti analisis sistem, diikuti oleh perancangan perangkat keras, pengembangan perangkat lunak, dan tahap akhir adalah pengujian perangkat keras dan perangkat lunak. Hasil pengujian yang diperoleh adalah sebagai berikut: pada ketinggian 40 cm (normal), buzzer tidak aktif dan lampu hijau menyala, pada ketinggian 120 cm - 160 cm (standby), buzzer tidak aktif dan lampu kuning menyala, dan pada pengujian individu pada ketinggian 210 cm - 250 cm (bahaya), sinyal peringatan aktif setiap setengah detik. Uji coba akurasi sensor ultrasonik pada Bendungan Katu Lampa menunjukkan akurasi data yang baik dengan error yang di dapat tidak lebih dari 10%.
Analisa Performansi Teknik Tdd-Fdd Carrier Aggregation pada Teknologi Radio Interface LteAdvanced untuk Data Rate di Kota Pontianak Pratama, Legenda Prameswono; Manfaluthy, Mauludi; Hapsari, Anindya Ananda; Vresdia, Devan Junesco; Hutagalung, Nirmalasari; Jonathan, Abraham Dhayan
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

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Abstract

Saat ini Indonesia merupakan salah satu negara yang bergerak cepat dalam merespon perkembangan teknologi telekomunikasi Mobile Cellular. Kebutuhan akan konsumsi data yang besar dan kecepatan data yang tinggi, menjadi factor utamanya. Saat ini Indonesia sudah mengimplementasikan teknologi 5G, tapi ironisnya jika melihat pada pemerataan jaringan di Indonesia, masih terdapat gap yang besar dengan teknologi sebelumnya, yaitu 4G LTE. Oleh karena belum optimalnya penggunaan dari teknologi 4G, maka tujuan dari penelitian ini adalah menganalisa pengaruh penggunaan teknik Carrier Aggregation beserta antenna MIMO 8 x 8 dalam mempengaruhi data rate pada jaringan LTE – Advanced di Kota Pontianak. Penelitian ini menggunakan metode kualitatif berdasarkan studi kasus dari penelitian – penelitian sebelumnya. Dari penelitian - penelitian tersebut dilakukan proses literatur review didapatkan gambaran trend Carrier Aggregation yaitu Inter Band Non – Contiguous pada band 1800 Mhz dan 2300 Mhz FDD - TDD total bandwith 40 Mhz. Kemudian dilakukan perancangan dan simulasi menggunakan software Atoll didapatkan 3 parameter keluaran yang akan dianalisa, yaitu RSRP, SINR dan throughput. Sebagai pembanding adalah KPI Operator, didapatkan nilai RSRP 54 % coverage area memiliki rentang nilai dari – 101 dBm sampai dengan -85 dBm dengan indikator baik. Pada nilai SINR, 95 % coverage area memilki rentang nilai 0 dB sampai dengan 30 dB dengan indikator baik dan pada throughput hasil dari simulasi Atoll didapatkan rata – rata throughput 434,13 Mbps sedangkan untuk Peak Actual Throughput hasil simulasi Atoll adalah 1.206,24 Mbps dan untuk perhitungan manual adalah 1.290,24 Mbps dimana hasil ini menunjukan indicator sangat baik.
Rancang Bangun Sistem Peringatan Persimpangan Jalan Kampung Padat Penduduk Menggunakan ESP8266 Maulana, Muhamad Waldi; Pratama, Legenda Prameswono; Vresdian, Devan Junesco; Manfaluthy, Mauludi; Putri, Arisa Olivia; Al-Humairi, Safaa Najah Saud
TELKA - Telekomunikasi Elektronika Komputasi dan Kontrol Vol 11, No 3 (2025): TELKA
Publisher : Jurusan Teknik Elektro UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/telka.v11n3.399-410

Abstract

Sistem peringatan keamanan lalu lintas pada pertigaan jalan telah dikembangkan pada penelitian ini. Sistem ini dirancang untuk mengganti penggunaan rambu dan alat bantu seperti cermin yang kurang efektif karena keterbatasan bidang pantulan dan gangguan akibat kondisi cuaca. Sensor PIR dan mikrokontroler ESP8266 digunakan untuk pemrosesan program pendeteksi kendaraan yang mendekati area pertigaan dengan pembagian skema menggunakan modul DOT MATRIC219. Penelitian ini memberikan beberapa skema pesan seperti ”STOP”, ”SLOW”, dan “HATI-HATI” dalam pemberian perintah disertakan isarat lampu merah, kuning dan hijau sebagai peringatan konvensional. Metode perancangan menggunakan basic pemrograman Arduino IDE. Dengan penerapan peringatan, pengendara dari berbagai arah diharapkan dapat meningkatkan kewaspadaan sehingga risiko kecelakaan di area pertigaan dapat dikurangi. Hasil penelitian menunjukkan sensor PIR dapat mendeteksi pergerakan ketika objek ditempatkan dengan jarak 50 cm sampai 325 cm dari sensor. Uji efektivitas sudut sensor PIR pada jarak 50 cm sampai 300 cm dengan sudut 0º sampai 60º sensor PIR dapat mendeteksi pergerakan. Logika sistem ESP8266 yang sudah diprogram berjalan dengan baik ketika menerima perintah maupun dalam keadaan standby. This study developed a traffic safety warning system for T-junctions. It replaces traditional signs and mirrors, which are often less effective due to limited reflection and adverse weather. Specifically, the system uses passive infrared (PIR) sensors and ESP8266 microcontrollers to detect vehicles, while the DOT MATRIC219 module handles message display. Warning messages like "STOP," "SLOW," and "CAUTION" are shown with red, yellow, and green lights. These alerts provide clear visual warnings. For system design, an approach with Arduino IDE programming was employed. The purpose of these warning signals is to improve driver vigilance from all directions and reduce accident risk at T-junctions. Experimental results show that the PIR sensor reliably detects movement at distances between 50 cm and 325 cm and is effective within an angle range of 0º to 60º from 50 cm to 300 cm. Finally, the programmed ESP8266 logic works correctly in both command and standby modes.
Co-Authors Abdullah, Muhammad Irsyad Abdulrazaq, Mohammed N. Adi Nugroho Agnemas Yusoep Islami Al-Humairi, Safaa Najah Sahud Al-Humairi, Safaa Najah Saud Al-yousif, Shahad Anindya Ananda Hapsari Ariansa, Hasri Ariep Jaenul Arisa Olivia Putri Balamaru, Bakti Brainvendra Widi Dionova Chatarina Umbul Wahyuni Dian Nugraha Dionova, Brainvendra Dwiana Hendrawati Eko Supriyono, Eko Faizah, Safira Hamzah Eteruddin Hamzah Hamzah Hutagalung, Nirmalasari Jaharadak, Adam Amril Jonathan, Abraham Dhayan KOKO Manfaluthy, Mauludi Maulana, Muhamad Waldi Mohammed, M. N. Nugraha, Kevin Setya Nugroho, Feri Permana, Muhammad Zidan Regi Rahmanda, Ibnu Dwi Setiawan, Antonius Darma Setyono, Rizka Sabila Sobar, Dedi Sundari, Delta Trisnaaji, Pius Adrian Vresdia, Devan Junesco Vresdian, Devan Junesco Wilyanti, Sinka Yanuar Zulardiansyah Arief Yasya Khalif Perdana Saleh Zuhriyah, Halimatuz