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All Journal Dinamik Jurnal Ilmiah Dinamika Teknik Jupiter Proceeding SENDI_U J-SAKTI (Jurnal Sains Komputer dan Informatika) Jurnal Riset Informatika PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Informatika dan Rekayasa Elektronik Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Jurnal Abdi Insani Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Dinamika Informatika: Jurnal Ilmiah Teknologi Informasi Journal of Telecommunication, Electronics and Control Engineering (JTECE) J-SAKTI (Jurnal Sains Komputer dan Informatika) Jurnal Pengabdian Masyarakat Intimas (Jurnal INTIMAS): Inovasi Teknologi Informasi Dan Komputer Untuk Masyarakat AMMA : Jurnal Pengabdian Masyarakat Intechno Journal : Information Technology Journal
Eddy Nurraharjo
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Agriculture, Biological Sciences & Forestry Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Public Health Social Sciences Other

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Journal : Jurnal Riset Informatika

 1 
LOW-POWER MULTI-SENSOR EXTENSION FOR WEMOS CONTROLLERS USING MULTIPLEXED ANALOG INPUTS Budiarso, Zuly Budiarso; Sukur, Muji; Nurraharjo, Eddy; saefurrohman
Jurnal Riset Informatika Vol. 7 No. 3 (2025): Juni 2025
Publisher : Kresnamedia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34288/jri.v7i3.358

Abstract

The increasing demand for low-cost, compact, and energy-efficient IoT systems has highlighted the limitations of microcontroller units (MCUs) such as the WeMOS D1 Mini, which are constrained by a single analog input pin. This is a major challenge for applications that require multiple analog sensors, such as environmental monitoring or smart agriculture. This paper presents a hardware-based solution using the CD74HC4067 16-channel analog multiplexer to expand the analog input capacity of the WeMOS controller. The system architecture allows multiple sensors to share a single analog input managed by digital control lines. The experimental implementation used six Light Dependent Resistor (LDR) sensors to evaluate accuracy, latency, and power efficiency. The results show that sensor reading accuracy remains within ±2% deviation, with an average channel switching latency of 42 milliseconds and only a 5% increase in total power consumption compared to a single sensor system. These results confirm that the multiplexing strategy maintains reliable performance while significantly improving scalability without compromising power constraints. The proposed approach provides a robust, low-power, and low-cost method for multi-sensor deployment on constrained MCUs, enabling broader application in resource-constrained IoT systems. Future developments may include cascading multiple multiplexers and integrating wireless data transmission for remote sensing applications.
Co-Authors Abd. Rasyid Syamsuri Agung Prihandono Arief Jananto BHANU SRI NUGRAHA Budiarso, Zuly Budiarso Dewi Handayani Untari Ningsih Dwi Budi Santoso Dwi Budi Santoso Edy Winarno Endang Lestariningsih Handoko, Untung Dwi Heribertus Yulianton Herny Februariyanti Hersatoto Listiyono Itmamur Roghib Luthfiyan Jati Sasongko Wibowo Maharani, Jinoli Dyahayu Mardi Siswo Utomo Muji Sukur Mukhofifah, Mukhofifah Mulya Kurnia Kasanova Nofiyanto, Erwin Nurhidayat, Ahmad Nurrohim, Muhammad Saefurrohman Sanjaya, Mellynia Sari, Anisa Rachma Setyawan Wibisono Sujatmiko, Sri Tunjung Teguh Khristianto Vido Rizqy Setiardo Wafik Lazhuardian putra Selvia Wiwien Hadikurniawati Wiwik Handayani Yohanes Suhari Zuly Budiarso Zuly Budiharso