OKTAL : Jurnal Ilmu Komputer dan Sains
1. Komputasi Lunak, 2. Sistem Cerdas Terdistribusi, Manajemen Basis Data, dan Pengambilan Informasi, 3. Komputasi evolusioner dan komputasi DNA/seluler/molekuler, 4. Deteksi kesalahan, 5. Sistem Energi Hijau dan Terbarukan, 6. Antarmuka Manusia, 7. Interaksi Manusia-Komputer, 8. Hibrida dan Algoritma Terdistribusi Pemrosesan Informasi Manusia, 9. Komputasi Berkinerja Tinggi, 10. Penyimpanan informasi, 11. Keamanan, integritas, privasi, dan kepercayaan, 12. Pemrosesan Sinyal Gambar dan Ucapan, 13. Sistem Berbasis Pengetahuan, 14. Jaringan Pengetahuan, 15. Multimedia dan Aplikasi, 16. Sistem Kontrol Jaringan, 17. Klasifikasi Pola Pemrosesan Bahasa Alami, 18. Pengenalan dan sintesis ucapan, 19. Kecerdasan Robot, 20. Analisis Kekokohan, 21. Kecerdasan Sosial, 22. Statistic 23. Komputasi grid dan kinerja tinggi, 24. Realitas Virtual dalam Aplikasi Rekayasa, 25. Intelijen Web dan Seluler, 26. Data Besar, 27. Manajemen Informatika, 28. Sistem Informasi, 29. Desain Permainan, 30. Sistem Multimedia, 31. Pemrosesan Gambar, 32. IOT 33. Pemrograman Seluler, 34. Desain Basis Data, 35. Pemrograman Jaringan, 36. Sistem Terdistribusi, 37. Sistem Pendukung Keputusan, 38. Sistem Pakar, 39. Kriptografi, 40. Model dan Simulasi, 41. Jaringan 42. Perhitungan 43. Metematika 44. Kimia 45. Teknik Elektro 46. Robotik 47. Fisika
Articles
1,093 Documents
<![CDATA[Implementasi IoT Menggunakan Mikrokontroler NodeMCU ESP8266 Dalam Mengotomatisasi Mesin Untuk Penampungan Air ]]>
<![CDATA[Jaka Sutresna]]>;
<![CDATA[Fitri Yanti]]>;
<![CDATA[Ahmad Musyafa]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[The rapid development of Internet of Things (IoT) technology provides significant opportunities for creating intelligent, efficient, and adaptive automation systems, especially for domestic applications. One of these implementations includes automated water storage management and remote control of household electrical devices such as lighting systems. This research aims to design and implement a web-based automatic water tank control and lighting management system utilizing the NodeMCU ESP8266 microcontroller and ultrasonic sensors (HC-SR04). The ultrasonic sensor accurately measures the real-time water level inside the tank. Meanwhile, NodeMCU ESP8266 functions as a central controller that processes sensor data and establishes Wi-Fi connectivity for communication with a web platform developed using the XAMPP server, PHP, and MySQL. The designed system employs a hybrid operation mode combining automatic pump control based on sensor readings and manual lighting control through a responsive web interface. The testing results demonstrate that the system operates with high accuracy, exhibiting a sensor measurement error of approximately ±2 cm and system response times of less than 1 second. Additionally, testing of the communication stability between NodeMCU and the web platform indicated reliable and consistent connectivity without significant interruptions. The developed system offers ease of management, effective energy and water efficiency, and aligns with an innovative, adaptive, and flexible smart living concept suitable for various scenarios in modern household environments.]]>
<![CDATA[Rancang Bangun Sistem Sewa Loker Berbasis Web Menggunakan Arduino Uno dan Sensor DHT11 ]]>
<![CDATA[Afriadi Syah]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[Lockers are public facilities that play an important role in maintaining the security and order of belongings belonging to students and visitors in educational environments. This study designs a web-based locker rental system with a prototype consisting of three locker compartments controlled by an Arduino Uno microcontroller. The system uses a DHT11 sensor to detect the temperature inside the locker, a limit switch to monitor the door’s open/close status, a solenoid door lock as an electrically operated replacement for conventional keys, and a buzzer as a high-temperature indicator. The rental process begins by entering a mobile phone number, selecting a locker and rental duration, making a payment, and receiving a unique code via WhatsApp, which is then used to open or close the locker. Testing results show that the DHT11 sensor recorded temperatures ranging from 29.6°C to 65.8°C with an average accuracy rate of 97.56%, with respons time 0,33 seconds until door opened. DHT11 experienced a decrease in accuracy at temperatures above 60°C. Repeated access tests conducted 30 times achieved an 86.67% success rate, with four failures caused by slow response times. The buzzer functioned 100% effectively with a temperature threshold set at 40°C. These results demonstrate that the system operates automatically, accurately, and responsively according to the design, and has potential for further development.]]>
<![CDATA[Penerapan Data Mining Menggunakan Algoritma C4.5 Dalam Mengukur Tingkat Kepuasan Para Wali Siswa Pada SMK Letris Indonesia 2 ]]>
<![CDATA[Rengga Herdiansyah]]>;
<![CDATA[Muhammad Ramdani]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[Education is a process aimed at creating a conducive learning environment so that students can reach their full potential. The C4.5 algorithm is a popular decision tree method because it produces classification models that are easy to understand and effective at comparing data with different types of attributes. Education is the effort to prepare students thru orientation activities, teaching and learning activities, assignments, and other educational activities that can influence attitudes and behavior to improve student learning quality. Education involves complex activities, has comprehensive aspects, and is influenced by many variables. The quality of a nation's education is determined by the quality of its educators. Educators must possess qualifications and a level of proficiency that meet national education standards. The school owned is a vocational high school, also known as SMK Letris Indonesia, which initially had a small building on Raya Jombang and gained public trust thanks to the students attending SMK Letris Indonesia. In the first phase, SMK Letris is committed to building a four-story school building with a total of sixteen classrooms and administrative spaces, so that SMK Letris Indonesia 2 has 1434 students with the following core programs: multimedia, network and network technology, accounting, online business and marketing, office automation and governance, and banking. The C4.5 algorithm is a popular decision tree method that helps determine the satisfaction threshold of student guardians based on relevant indicators.]]>
<![CDATA[Sistem Monitoring Berbasis Iot Untuk Pemantauan Ketinggian Gelombang Laut, Kecepatan Dan Arah Angin Sebagai Peringatan Dini Bencana ]]>
<![CDATA[Muhammad Aldi Aulia Fathurohman]]>;
<![CDATA[M. Afif Rizky A.]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[This research aims to design and develop an Internet of Things (IoT)-based monitoring system as an early warning tool for tsunami disasters, capable of monitoring sea wave height, wind speed, and wind direction in real time. The system integrates an MPU6050 sensor to detect wave height, an optocoupler sensor for wind speed, and a Hall Effect sensor for wind direction. The collected data is processed by an Arduino Mega 2560 microcontroller and transmitted via an ESP32 module to a Telegram application as a notification medium. A simulation was conducted on a 1:200 scale using an aquarium, where artificial waves represented hazardous sea waves. The test results showed that the system achieved an accuracy rate of 99.77% for wave height measurements and 99.9427% for wind speed, with an average notification delay of 2.67 seconds. The system also successfully detected wind direction and coordinates accurately as designed. These findings suggest that the proposed system has the potential to serve as an efficient and affordable small-scale solution for marine disaster monitoring, with the possibility of further development for real-world applications in coastal areas.]]>
<![CDATA[Pengaruh Penyambungan PLTMH Terhadap Tegangan Jatuh pada Penyulang BBLA ]]>
<![CDATA[Anto Carmanto]]>;
<![CDATA[Ojak Abdul Rozak]]>;
<![CDATA[Yusup Muhammad Syakir]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[Micro hydro power plants (PLTMH) are environmentally friendly alternative plants at PT. PLN ULP Pamempeuk has one of the feeders that is synchronized with PLTMH to increase power to the feeder. In some of these channels, there is a voltage drop that exceeds the standard limit of SPLN number 73 in 1987, it was 5%. In this thesis, a calculation was made of the magnitude of the voltage drop before and after it was interconnected with the PLTMH. From the calculation results before being interconnected with the PLTMH, there were four substations that experienced voltage drops, namely Substation WNGC-1018 by 6.585%, BOJ-441 by 5.825%, SUK-024 by 6.815%, and TLL-882 by 6.110%. To reduce the voltage drop, in addition to being synchronized with PLTMH, PLN also added two substations, namely the CPKP–999 substation with a transformer capacity of 100 kVA to reduce the voltage drop at the WNGC–1018 substation to 2.514%, then the KCU-808 substation with a transformer capacity of 100kVA to reduce the voltage drop at the SUK-024 substation to 4.284%. Then, the results of the calculation after being interconnected with the PLTMH, there are two substations that are still experiencing voltage drops, namely 1,272,076 volts with a percentage of 6.360% at substation B0J - 441 and 1,243,193 Volts with a percentage of 6.215% at substation TTL-882. Then, the repair solution that is carried out is to relocate the substation location. The substations that have changed locations are BOJ substation – 441 from 22,900 kms to 11,484 and TLL-882 substation from 23,650 kms to 9,802 kms. This location change reduces the voltage drop in the two substations, where previously the BOJ-441 substation had a voltage drop to 319.856 volts with a percentage decrease from 6.360% to 1.599% and in the TLL-882 substation, the voltage fell to 213.533 volts with a percentage decrease from 6.215% to 1.067%.]]>
<![CDATA[Analisis Dan Perancangan Aplikasi E-Donasi Berbasis Web Dengan Metode Software Development Life Cycle ]]>
<![CDATA[Qoish Sirrusysyahid Al Qordhowi]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 09 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[The Al Qaaf Foundation still uses conventional and manual methods for recording, calculating, and reporting donations. This causes the donation process to be lengthy and several obstacles to arise, such as when searching for donor data. This e-donation application allows people to make donations online easily and quickly, without having to go to a physical location or send money directly. Therefore, the Software Development Life Cycle (SDLC) method is very necessary in the development of a web-based e-donation application so that it can produce a reliable, secure, and effective e-donation application. With this donation application, it is hoped that it can help the AL QAAF FOUNDATION overcome the obstacles and problems that occur in the donation process.]]>
<![CDATA[Sistem Pendukung Keputusan Mengukur Tingkat Pemahaman Siswa terhadap Pembelajaran dengan Menggunakan Metode Simple Additive Weighting (SAW) ]]>
<![CDATA[Suherman]]>;
<![CDATA[Ikna Niswatuzzakiah]]>;
<![CDATA[Aldi Irawan]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[Education plays a crucial role in developing individual potential. Learning evaluation, particularly in Biology subjects, is essential to comprehensively assess students' understanding. However, traditional evaluations such as mid-term and final exams often overlook the learning process. This study aims to measure the level of understanding of Grade XI Science 1 students at SMA Negeri 3 Pandeglang on the topics of Human Reproduction and the Immune System using the Simple Additive Weighting (SAW) method. This method was chosen due to its capability in determining the weight of criteria and ranking alternatives. The indicators of student understanding in this study include the ability to recall, elaborate, summarize, provide examples, and draw conclusions. The results indicate that 86.11% of students fall into the "very understanding" category regarding the taught materials. The system was developed using the CodeIgniter framework, PHP programming language, and MySQL database. The findings are expected to assist teachers in formulating more effective teaching strategies and providing objective evaluations of student comprehension.]]>
<![CDATA[Perancangan Sistem Informasi Manajemen Stok Makanan dan Minuman pada RM. Lesehan Podomoro Berbasis Web dengan Metode Rapid Application Development ]]>
<![CDATA[Eko Pras Setyo]]>;
<![CDATA[Munawaroh]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 08 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[Stock is a very crucial thing for companies whose business processes are directly related to goods. The restaurant is part of the company. There are times when the stock of food menus that are in high demand by customers cannot be ordered because they are out of stock. Often unnoticed, stock issues can cause losses for the company. Because there is no reference to determine the number of items to be stocked, restaurants often lack food stock, because the stock supply is still using estimates without data and analysis. RM stock management information system. Lesehan Podomoro is website-based, prioritizing developing a system in the menu mutation report section, this data can be processed for further stock analysis for the next day. The system designed can help the process of making reports and administration to be more effective and efficient. Making this system using the PHP 7.3 programming language and MySQL as the database, and the Apache application to run the web server. This application can be used to process data and stock management data reports.]]>
<![CDATA[Strategi Pengembangan Model Bisnis E-Commerce Batik Suku Baduy Berbasis WordPress dengan Analisis Business Model Canvas dan Fishbone Diagram ]]>
<![CDATA[Windhy Widhyanti]]>;
<![CDATA[Retno Wulandari]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 09 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[study aims to design and analyze a WordPress-based e-commerce website as a marketing platform for Batik products of the Baduy ethnic community. The main challenges faced by Baduy batik entrepreneurs are limited market access and the lack of optimal utilization of digital technology. To identify the root causes of problems, the Fishbone Diagram method was applied, while the Business Model Canvas (BMC) was used to develop business strategies. The research method includes literature review, observation, interviews, website design using WordPress, and system analysis. The findings indicate that implementing a WordPress-based e-commerce platform improves the visibility of Baduy Batik products in the digital market and expands market reach. Through the integration of Fishbone and BMC analyses, this study proposes strategic recommendations for business model development that enhance competitiveness and business sustainability.]]>
<![CDATA[Perancangan Aplikasi Monitoring Progres Hafalan Al-Qur’an Santri Berbasis Website Dengan Metode Agile (Studi Kasus: Yayasan Sanggar Baca Al-Qur’an) ]]>
<![CDATA[Mua'mmar]]>;
<![CDATA[Nasrul Hidayah]]>
<![CDATA[ OKTAL : Jurnal Ilmu Komputer dan Sains Vol 4 No 09 (2025): OKTAL : Jurnal Ilmu Komputer Dan Sains ]]>
Publisher : <![CDATA[CV. Multi Kreasi Media ]]>
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<![CDATA[The advancement of technology has brought innovations across various fields, including education. One of these is the Qur’an memorization activities conducted at Yayasan Sanggar Baca Jendela Dunia. So far, the recording of students’ memorization progress has been carried out manually using notebooks, which has several drawbacks, such as data being easily damaged, lost, or difficult to access. Based on these issues, this research aims to design and develop a web-based monitoring system that can digitally record and track students’ Qur’an memorization progress. The system was developed using the Agile methodology, which allows for an iterative and flexible development process according to user needs. The application was built using the PHP programming language and MySQL database, and it is run locally using XAMPP as the server. To ensure the system functions as expected, testing was conducted using both black box and white box methods. The black box testing was used to verify whether the system’s features operate as intended, while the white box testing was conducted to evaluate the program’s logic flow directly through the source code. The results of both testing methods indicate that the system works properly and is capable of supporting the process of recording and monitoring students’ Qur’an memorization progress more efficiently and in a more structured manner.]]>
