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All Journal JURNAL TEKNOLOGI DAN OPEN SOURCE Informasi interaktif : jurnal informatika dan teknologi informasi
Batubara, Muhammad Sakban
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Computer Science & IT

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Design of Automatic Fan Base On Arduino Uno Microcontroler And DHT11 Sensor Batubara, Muhammad Sakban; Hutabarat, Purnama Helena
JURNAL TEKNOLOGI DAN OPEN SOURCE Vol. 8 No. 2 (2025): Jurnal Teknologi dan Open Source, December 2025
Publisher : Universitas Islam Kuantan Singingi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jtos.v8i2.5012

Abstract

The temperature of the human body can fluctuate depending on environmental conditions, particularly the surrounding room temperature. To maintain comfort, a cooling device capable of providing adequate airflow is required, and one commonly used solution is an electric fan. This study focuses on designing and implementing an automatic fan system controlled by an Arduino Uno microcontroller and a DHT11 temperature sensor. The system is programmed to activate the fan automatically when the detected room temperature exceeds a predetermined threshold. In the design phase, the Arduino Uno functions as the core controller due to its ability to process sensor input and manage hardware operations efficiently. The DHT11 sensor measures both temperature and humidity, transmitting the data to the microcontroller, which then delivers a control signal to the relay module. Following the design stage, system implementation is carried out using the C++ programming language through the Arduino IDE. The program continuously reads temperature values from the DHT11 sensor, enabling real-time decision-making. When the temperature reaches the specified limit, the microcontroller triggers the relay, causing the fan to operate automatically. The results of this study show that the fan responds accurately to temperature changes, providing a practical automatic cooling solution.
A SISTEM INFORMASI BERBASIS WEB UNTUK PEMBUATAN DAN PENGELOLAAN PORTOFOLIO PRIBADI Batubara, Muhammad Sakban; Hutabarat, Purnama Helena
Informasi Interaktif : Jurnal Informatika dan Teknologi Informasi Vol 11 No 1 (2026): Bahasa Indonesia
Publisher : Program Studi Informatika Fakultas Teknik Universitas Janabadra

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Abstract

The swift of information technology has motivated numerous people—especially professionals, students, and scholars—to build their digital self-image. A personal portfolio is an effective way to showcase their identity, skills, and work. However, physical portfolios have several limitations, such as being difficult to access, difficult to distribute, difficult to update, less visually appealing, and requiring dedicated storage space. As a solution, a web-based personal portfolio is here to display professional data and individual work in a more structured, interactive, and easily accessible way via the internet. The purpose of this research is to develop and create a personal portfolio website that is responsive, interactive, and easy to use. The development approach used in this study follows  the waterfall model, encomassing the phases of requirements analysis, system design, implementation, and testing. The system was built utilizing PHP, HTML, CSS, and JavaScript programming languages, with a MySQL database as a storage medium. The findings of this research are a web-based personal portfolio creation information system that makes it easy for users to display personal data, educational history, work experience, projects, and skills in a professional and attractive manner. Furthermore, this system can reduce reliance on physical portfolios, which tend to be expensive and time-consuming to create. Data updates are also faster and more efficient. With this website, users are expected to build a professional image in the digital world and make it easier for others to recognize and assess their competencies more effectively.
Co-Authors Hutabarat, Purnama Helena