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All Journal JREC (Journal of Electrical and Electronics) Jurnal Informatika dan Teknik Elektro Terapan Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Elementer (Elektro dan Mesin Terapan) JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol EPIC : Journal of Electrical Power, Instrumentation and Control Aisyah Journal of Informatics and Electrical Engineering Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Midpro JATI (Jurnal Mahasiswa Teknik Informatika) Journal of Energy and Electrical Engineering (JEEE) Journal of Electrical Engineering and Computer (JEECOM) Jurnal Ilmiah Wahana Pendidikan JUTECH : Journal Education and Technology Jurnal Teknik Elektro Integrasi : Jurnal Ilmiah Teknik Industri Power Elektronik : Jurnal Orang Elektro
Reni Rahmadewi, Reni
Universitas andalas
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Penerapan Teknologi ESP-Now : Komunikasi Nirkabel untuk Portable Pelican Crossing Syahda, Rizky Oriza; Rahmadewi, Reni; Santoso, Dian Budhi
Journal of Electrical Engineering and Computer (JEECOM) Vol 6, No 1 (2024)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v6i1.8353

Abstract

Bagi pejalan kaki, kebiasaan menyebrang jalan menggunakan zebra cross menjadi hal yang sangat sering dilakukan, terlebih bagi mereka yang tinggal didalam pusat perkotaan dan tidak memiliki kendaraan pribadi, ataupun mereka yang sering menggunakan transportasi umum sebagai mobilitasnya. Namun, beberapa pengendara masih tidak memiliki kesadaran dan tidak mengurangi kecepatan berkendara ketika ada pejalan kaki yang ingin menyebrang. Hal ini yang mengakibatkan kekhawatiran bagi pada pengguna zebra cross ketika hendak menyebrang. Untuk memberikan rasa aman kepada pejalan kaki, fasilitas zebra cross dapat dipadukan dengan pelican crossing. Akan tetapi, pelican crossing sering menjadi sasaran tindakan tidak bertanggung jawab dari beberapa individu yang dapat menyebabkan kerusakan pada fasilitas tersebut. Selain itu, banyak pelican crossing rusak yang tidak segera diperbaiki, sehingga menimbulkan potensi bahaya bagi pejalan kaki dan pengguna jalan lainnya. Berdasarkan masalah ini, penulis bertujuan membuat portable pelican crossing menggunakan komunikasi nirkabel ESP-Now. Dari penelitian ini Portable Pelican Crossing dapat di operasikan dengan jarak optimal maksimal 25 meter dan jangkauan jarak dapat diperluas hingga 50 meter dengan risiko proses pengiriman data menjadi terganggu.
Sistem Komunikasi Antar Arduino Menggunakan Protokol RS485 Septianti, Nurul; Rahmadewi, Reni
Journal of Electrical Engineering and Computer (JEECOM) Vol 6, No 1 (2024)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v6i1.8398

Abstract

Sistem Komunikasi Antar Arduino menggunakan Protokol RS485 dirancang untuk mendukung komunikasi jarak jauh hingga 1200 meter, walaupun pada percobaan digunakan kabel dengan panjang sekitar ±25cm. Komponen sistem melibatkan mikrokontroler master sebagai pusat kendali yang mengirimkan perintah kepada mikrokontroler slave dan mengakses input dari push button, hasilnya ditampilkan pada layar LCD. Mikrokontroler slave berperan dalam menerima dan menjalankan perintah dari mikrokontroler master, dengan data terkait aliran daya listrik pada masing-masing slave (880 watt pada slave 1, 900 watt pada slave 2, dan 800 watt pada slave 3).
IDENTIFIKASI KEMATANGAN PADA BUAH LEMON MENGGUNAKAN METODE HSV DAN MULTI-LEVEL THRESHOLDING Fatah, Amirul; Rahmadewi, Reni
JUTECH : Journal Education and Technology Vol 5, No 1 (2024): JUTECH JUNI
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jutech.v5i1.3489

Abstract

Buah lemon dikenal karena kandungan vitamin C yang tinggi, serta mengandung sejumlah nutrisi lain seperti serat, vitamin B, potassium, dan antioksidan. Dalam industri pertanian dan pemasaran buah lemon membutuhkan cara efesien untuk menentukan tingkat kematangan yang tepat. Kematangan buah lemon mempengaruhi kualitas, rasa, dan nilai jualnya. Identifikasi kematangan pada kulit buah lemon merupakan langkah penting dalam memastikan kualitas dan ketahanan buah saat dipasarkan. Penelitian ini akan menerapkan metode HSV dan Multi-Level Thresholding, didapatkan hasil Konversi nilai citra dari ruang warna RGB menjadi HSV pada buah lemon matang dan mentah menghasilkan perubahan warna kulit yang signifikan, dan Proses thresholding pada komponen Hue (H), Saturation (S), dan Value (V) dengan menggunakan nilai T1=140 dan T2=198 menunjukkan bahwa pada buah lemon matang hampir semua bagian kulitnya terdeteksi, sedangkan pada buah lemon mentah hanya sedikit yang terdeteksi. Berdasarkan hasil penelitian bahwa thresholding pada komponen HSV dapat digunakan untuk menentukan tingkat kematangan antara buah lemon matang dan mentah berdasarkan warna kulitnya.
KLASIFIKASI GOLONGAN DARAH DENGAN IMAGE PROCESSING CANNY EDGE Setiawan, Aris; Rahmadewi, Reni
JUTECH : Journal Education and Technology Vol 5, No 1 (2024): JUTECH JUNI
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jutech.v5i1.3497

Abstract

Darah adalah salah satu jaringan tubuh yang berupa cairan merah. Untuk mengetahui golongan darah harus menjalani tes golongan darah sistem ABO, yang terdiri dari empat golongan darah: A, B, O, dan AB. Untuk saat ini, pengidentifikasian golongan darah manusia masih dilakukan secara manual untuk mengidentifikasi proses aglutinasi. Penelitian ini menyelidiki teknik pengolahan gambar Canny Edge, yang memungkinkan komputer untuk menentukan jenis golongan darah. Untuk melakukan identifikasi dilakukan berbagai tahapan dari konversi grayscale, konversi biner, segemntasi gambar dan deteksi canny edge. Hasil cukup efektif untuk membantu pengklasifikasian dalam menentukan golongan darah tetapi, gambar sampel golongan darah harus memiliki tiga sampel darah yang telah diberikan antibodi dan harus memiliki kualitas gambar yang baik. Agar dalam pendeteksian dan perhitungan garis tepi tidak terjadi kesalahan.
Pendeteksian Wajah Hasil Dari Manipulasi Ai Pada Citra Digital Nawawi, Haikal Engga; Rahmadewi, Reni; Nurpulaela, Lela
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 2 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10487513

Abstract

Technology's improvement year by year has been really quick such as AI (Artificial Intelligence), nowadays AI is used in everything in human activity. Image manipulation by AI is becoming more popular since netizens often use it as their content on social media. This image generated by AI has a problem which is that the result of the image is really similar to the real face, so therefore the problem needs to be solved by some solution such as segmentation method and edge detection method. This method will generate the result by euclidean distance as the parameter. The final result, the image from Ai will not have the same shape of highlight on the eyes but the real one will have the same shape.
Analisis Kinerja Pembuatan dan Perancangan Amplifier (Penguat Suara) Pada Sound System di PT Fastrobotic Bantul Yogyakarta Febriyanto, Dionisius; Rahmadewi, Reni
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 5 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10521674

Abstract

A sound system is a system used to generate and amplify sound in a variety of applications, such as music concerts, theatrical stages, and home audio systems. One of the important components in a sound system is an amplifier or system amplifier, whose job is to amplify the audio signal so that it can drive speakers with good sound quality. This study aims to perform performance analysis in the manufacture and design of amplifiers on sound systems. The method used includes component selection, circuit design, and testing the performance of the amplifier being built. At the manufacturing stage, the components used are selected based on the desired specifications, including the types of transistors, capacitors, and resistors. The amplifier circuit is then designed based on the principles of electronics and the desired design. The results of the performance analysis can be used to improve the amplifier design, make component adjustments, or choose a better alternative. In addition, performance analysis also provides a better understanding of the characteristics of the amplifier in producing sound quality.
IMPLEMENTASI VOLTAGE SENSOR DAN SENSOR INA219 SEBAGAI PENGUKUR TEGANGAN DAN ARUS PADA PEMBANGKIT LISTRIK TERMOELEKTRIK GENERATOR Sihaloho, Arman Dwika Farlentinus Hasudungan; Rahmadewi, Reni
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 4 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10501251

Abstract

Generator thermoelectric power generation system is one of the promising technologies in converting heat into electrical energy. This technology utilizes the Seebeck effect, where the temperature difference between the two ends of a thermoelectric material will generate an electric current. Even though it has great potential, the efficiency of converting heat to electricity in generator thermoelectric systems still needs to be improved. This study aims to implement voltage and current sensors, namely the voltage sensor and INA219 sensor, in a Thermoelectric Generator Power Plant (PETRIKOR) to carry out accurate measurements and monitoring of the parameters of voltage and current in the system. PETRIKOR is a thermoelectric-based power generation system that uses temperature differences to generate electrical energy. With these sensors, real-time measurements of voltage and current can be made and can help optimize PETRIKOR performance. The results of this study are expected to contribute to the development and monitoring of thermoelectric power generation systems. With accurate measurement of voltage and current.
Perancangan Low Voltage Main Distribution Panel (Lvmdp) Untuk Optimalisasi Distribusi Listrik Mall Karawaci Tangerang di PT Tiga Hutama Teknik Dzaki, Ilham; Rahmadewi, Reni
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 5 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10526544

Abstract

This study aims to design a Low Voltage Main Distribution Panel (LVMDP) specifically designed for mall needs, with a focus on optimizing energy distribution, load management, and system reliability. Mall Karawaci Tangerang is a place that is very dependent and requires a continuous supply of electricity as its main energy to operate, but because it is very wide and consists of 3 floors, the need for electricity supply is also very large. The LVMDP panel is an electrical panel that utilizes MCCB as the main system in its security to distribute 3-phase (380V) and 1-phase (220V) electricity. This study used three methods which were applied including literature, observation, and interviews. The results of this study are to produce an electrical panel design that can distribute electricity in the Karawaci mall effectively, safely and optimally.
IoT-based Facelook and Fingerprint Safe Security System Immanuel, Josya Marvin; Ibrahim, Ibrahim; Rahmadewi, Reni; Saragih, Yuliarman
Jurnal Penelitian Pendidikan IPA Vol 10 No 2 (2024): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i2.6832

Abstract

This research aims to develop an advanced safe security system by combining Facelook and Fingerprint technologies based on the Internet of Things (IoT). These technologies are expected to provide a higher level of security and facilitate access for safe owners. Subsequently, testing is carried out on the safe's opening mechanism after successful authentication via both the fingerprint sensor and the face recognition system. These trials encompass the evaluation of success rates, the speed of the opening mechanism, and the overall response time. Data from the testing phase is collected and analyzed to comprehensively assess the system's performance. The average notification delivery delay for the face recognition system was measured at 2.67 seconds with a standard deviation of 0.37. The notification delivery data revealed an average delay of 2.04 seconds with a standard deviation of 0.38 These findings collectively affirm the effectiveness of the integrated face recognition and fingerprint system in the proposed safe security setup
Design of a Mamdani Fuzzy Logic Prototype System for Free-Range Chicken Egg Incubators Manullang, Maribeth Adventina; Arihta, Michael; Rahmadewi, Reni
Journal of Energy and Electrical Engineering Vol 7, No 1: October 2025
Publisher : Teknik Elektro Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/jeee.v7i1.15806

Abstract

This research aims to design a temperature and humidity control system for chicken egg incubators using the Mamdani Fuzzy logic method. The main problem addressed is the fluctuation of temperature and humidity in conventional systems that still rely on on/off control. The developed system utilizes DHT sensors as temperature and humidity gauges, Arduino as a microcontroller, and regulates the light intensity of incandescent lamps using an AC dimmer. Mamdani Fuzzy Logic is used to process two inputs, namely temperature and humidity and produce an output in the form of the brightness level of the incandescent lamp. The system relies on nine Fuzzy rules in making decisions based on variations in input conditions. The test results show that the system is able to provide appropriate responses to changes in temperature and humidity, and produce outputs in accordance with the designed rules, such as Rule R1, R5, and R9. Thus, this system succeeds in maintaining the stability of the temperature in the incubator, so as to increase the efficiency and success of the egg hatching process. Overall, the application of Mamdani Fuzzy Logic proved effective in designing an intelligent control system for the incubator.
Co-Authors Abda Abda Abdul jalil Afta Wijaksana, Sevada Andika Pratama Arief, Akhmad Ikhsannul Arihta, Michael Ariyanto Pamungkas, Guntur Arnisa Stefanie Bangsa, Insani Abdi Budhi Santoso, Dian Cahyaputra, Hafizhiadi Rizki Diko Aprilyanto, Muhammad Dwi Wibowo, Muhammad Fauzan Al-Ghifary Dzaki, Ilham Fadhlurrahman, Rafi Fahla, Adam Fatah, Amirul Fathurrizqy, Muhammad Fawaz Fauzi, Rafly Febriyanto, Dionisius Firmasnyah, Naufal Haasyim Hadikusuma, Ridwan Satrio Hanafi, Zikri Haris Hermawan, Haris Hibban Sya'bana, Daffa Hidayat, Ahmad Hilman Ibnu Prabowo, Farhan Ibrahim Ibrahim Immanuel, Josya Marvin Irsabmalfi, Rangga Laili, Maria Bestarina Lela Nurpulaela Lindawati, Utari Luqman Ramadhani, Muhammad Malik Ibrahim, Muhamad Manullang, Maribeth Adventina Maulana, Enggal Meilany, Mauludy Naufal, Daffa Handika Nawawi, Haikal Engga Nugraha, Rifki Fajar Nurzamilah, Zulia Pramudia, Rendy Prapongga, Muhammad Krisna Purwita Sary, Indri Pusparina A, Rianda Puspitasari, Della Putra Alvaro, Rayhan Rachman, Faishal Rahmi, Hayatul Ramadhan, Andra Caesar Raya Ismail, Dzaguar Rismayanti, Azizah Santoso, Dian Budhi Septianti, Nurul Sihaloho, Arman Dwika Farlentinus Hasudungan Siswadi Siswadi Sukmawardani, Ramadhan Syahda, Rizky Oriza Yuliarman Saragih