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All Journal JTEV (Jurnal Teknik Elektro dan Vokasional Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic Prosiding Semnastek JUITA : Jurnal Informatika Annual Research Seminar SMATIKA JURNAL NASIONAL TEKNIK ELEKTRO Proceeding of the Electrical Engineering Computer Science and Informatics PROtek : Jurnal Ilmiah Teknik Elektro JETT (Jurnal Elektro dan Telekomunikasi Terapan) Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Teknik Komputer AMIK BSI AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat JURNAL MEDIA INFORMATIKA BUDIDARMA Martabe : Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Kreativitas PKM Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal RANDANG TANA - Jurnal Pengabdian Masyarakat bit-Tech Jurnal Teknologi Elekterika Journal of Research in Business, Economics, and Education Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Jurnal Digit : Digital of Information Technology Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Aptekmas : Jurnal Pengabdian Kepada Masyarakat Joong-Ki : Jurnal Pengabdian Masyarakat Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) Logic : Jurnal Rancang Bangun Dan Teknologi Joong-Ki Jurnal Teknik Elektro dan Komputer semanTIK Joong-Ki Smatika Jurnal : STIKI Informatika Jurnal ITEJ (Information Technology Engineering Journals)
Irma Salamah
Politeknik Negeri Sriwijaya
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Journal : bit-tech

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IoT-Based Alcohol Presence Detection in Soy Sauce Using MQ-3 and ESP32 Narita Tria Almirah; Ahmad Taqwa; Irma Salamah
bit-Tech Vol. 8 No. 1 (2025): bit-Tech
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32877/bt.v8i1.2811

Abstract

Ethanol is a compound that naturally forms during the fermentation process of products such as soy sauce, raising concerns about their halal status for Muslim consumers. This research develops an alcohol detection system based on the Internet of Things (IoT) that integrates an MQ-3 sensor, ESP32 microcontroller, and the Blynk mobile application. The MQ-3 sensor detects ethanol vapor, and the ESP32 processes the sensor data and transmits it via Wi-Fi, enabling real-time monitoring through both a 16x2 LCD display and the Blynk app. The system’s calibration process involves standard ethanol solutions with concentrations ranging from 0% to 10%. The sensor output is converted from analog-to-digital (ADC) values to voltage, parts per million (ppm), and percentage estimates. A regression analysis of the sensor data yielded the equation y = 684.59x + 3198.9, with an R2 value of 0.7288, indicating a moderate correlation between ethanol concentration and sensor readings. Using solutions with ethanol concentrations of 1% and 3%, a detection threshold of 5300 ppm was established. Testing on commercial soy sauce samples (0% and 3.08% ethanol) confirmed the system's ability to distinguish between products with and without detectable ethanol, validating its effectiveness. While not designed for precise quantitative analysis, this system offers a practical, economical, and portable solution for initial screening of alcohol in fermented food products, making it a valuable tool for halal product monitoring.
Co-Authors A Rahman Abdul Rakhman Agnes Manik Ahmad Taqwa Ahmad Taqwa Ali Nurdin Anisah Meidella Aryanti Aryanti Asriyadi Asriyadi City Ardhela Alisya Desi Riama Manalu Dita Azzahra Dita Azzahra EKA SUSANTI Elmerillia Elmerillia Endri, Jon Fadhila Desti Rahmaniar Fahreza Fina Triana Handava Wardana Hermika Yuliana Sitompul Hj Lindawati Hj. Lindawati Indah Putri Lestari Irawan Hadi kurnia syafitri Lindawati Lindawati Lindawati M Permadi Yosa Nugraha M. Aris Ganiardi M. Redho Ali Said M.Munaza Fathsyah Meli Gustina Michelle Valerie Mohammad Fadhli Muhammad Aris Ganiardi Muhammad Dio Alfajri Muhammad Fadhli Muhammad Munaza Fathsyah Nadia Oktavia Nadiyah Salsabila Fauzi Narita Tria Almirah Nasron Nasron Nida Dhia Ulhaq R.D.Kusumanto Raden Kusumanto RD Kusumanto RD Kusumanto Rizky Tapera Rudy Mustaqim Shinta Sulistiya Ningrum Shohibulloh Bayu Anistiawan Sholihin Sholihin Suroso Suroso Suroso Suzanzefi Suzanzefi Tiara Putri Amanda Tri Rizkiah Wahyudi Rahman