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All Journal International Journal of Electrical and Computer Engineering Jurnal Pendidikan Vokasi TELKOMNIKA (Telecommunication Computing Electronics and Control) INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Journal of Robotics and Control (JRC) International Journal of Applied Sciences and Smart Technologies Jurnal Berdaya Mandiri MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering International Conference on Industrial Revolution for Polytechnic Education Journal of Electronics Technology Exploration (JOeTEx)
Rafiq, Arif Ainur
Politeknik Negeri Cilacap
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Journal : Journal of Electronics Technology Exploration (JOeTEx)

 1 
Noise Detection System in The Classroom Using Sound Sensors and NodeMCU ESP6288 Arif Ainur Rafiq; Sugeng Dwi Riyanto; Hera Susanti
Journal of Electronics Technology Exploration Vol. 1 No. 1 (2023): June 2023
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joetex.v1i1.185

Abstract

The educational environment is the process of educational activities, so the environment is expected to be comfortable and avoid noise. Noise can be disturbing, such as the ringing of mobile phones or sounds produced by humans. Sound noise in a room can cause loss of concentration, so that indoor activities can be disrupted. Based on these problems, it is necessary to have a tool used to detect the noise level of sound in the classroom. Therefore, a noise detection system in the learning room uses a sound sensor based on NodeMCU ESP8266, which can send email notifications and be monitored through the thinger.io application. The location of this research is in a classroom. This tool consists of hardware (hardware) including NodeMCU ESP8266, PIR Sensor, LCD 16x2 I2C, Sound Sensor, DF Player Mini Mp3, Speaker, and Android application software. The working principle is that if the decibel value exceeds the predetermined value, the room user will hear a warning sound and send an informational text in the form of an email notification. Based on tests on several parameters, testing using the sound of a drilling machine obtained an error value of 8.7%. In music sounds, an error value of 7.7%, and inhuman screaming sounds, an error value of 8.1%. The tool has been successful in the test results and can be implemented in the classroom.
Integrating Renewable Energy Solutions through Collaborative Research: A Pathway to Sustainable Urban Development wijaya, yusmar; rafiq, arif ainur
Journal of Electronics Technology Exploration Vol. 3 No. 2 (2025): December 2025
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joetex.v3i2.572

Abstract

The rapid pace of global urbanization has intensified the demand for sustainable energy solutions, prompting the integration of renewable energy into urban development plans. This paper explores the critical role of collaborative research in overcoming the challenges associated with transitioning to renewable energy in urban areas, focusing on the contributions of bibliometric analysis. This study uses a bibliometric approach to analyze global research trends, key publications, and influential authors in renewable energy and urban planning. The analysis highlights the growing body of literature, revealing significant clusters of research activity centered around sustainable development, urban planning, and renewable energy technologies. Case studies of cities like Freiburg and San Francisco, which have successfully integrated renewable energy technologies, demonstrate how collaborative approaches can lead to more resilient and sustainable urban environments. Despite significant progress, challenges such as infrastructural investments, retrofitting complexities, and regulatory hurdles remain. The paper emphasizes the importance of continued collaborative research to address these barriers and ensure that the benefits of renewable energy are equitably distributed among urban populations. In addition, the study underscores the necessity of interdisciplinary collaboration and public engagement in fostering broader adoption and support of renewable energy technologies. The findings advocate for strengthened partnerships and continued innovation, supported by bibliometric insights, to facilitate the global transition towards sustainable urban energy systems. This research provides a comprehensive understanding of the evolving landscape of renewable energy research and its critical role in shaping sustainable urban development.
Co-Authors Abdullah Mas'ud Afrizal Abdi Musyafiq Ari Kristiningsih Bagas Dwi Aprilas Choirun Niswatin Della Puspa Rani Dian Novian Didik Hariyanto Dwi Sudarno Putra Erna Alimudin Hera Susanti Hera Susanti Mardiyana Mardiyana Mochamad Bruri Triyono Muhammad Yusuf Novita Asma Ilahi Prasetya, Vicky Quynh, Nguyen Vu Ratna Wardani Rizki Priya Pratama Rohman, Wahid Nur Santi Purwaningrum Sugeng Dwi Riyanto Supriyono Supriyono Teddy Surya Gunawan Vicky Prasetia wijaya, yusmar