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Sumual, Willyam Lucas Haposan
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering

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Smart Water Tank Management System Berbasis IoT dan WebSocket untuk Kontrol Dua Pompa Otomatis Trisaptono, Raymondus; Marpaung, Bryant Valencio; Sumual, Willyam Lucas Haposan; Widiyanto, Eka Puji
MDP Student Conference Vol 5 No 2 (2026): The 5th MDP Student Conference 2026
Publisher : Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/mdp-sc.v5i2.14389

Abstract

Water management in multi-story buildings requires efficiency to prevent resource wastage. At the Santo Paulus Plaju Catholic Church, manual pump operation frequently leads to tank overflows, water shortages, and potential pump damage due to dry-running. This study designs a centralized automatic control system for filling and booster pumps using an ESP32 microcontroller and Websocket protocol for real-time monitoring. The system integrates an AJ-SR04M ultrasonic sensor for level measurement and a YF-S201 flowmeter for discharge detection. Testing results demonstrate system successfully automates operations based on hysteresis logic (ON <25%, OFF >90%) and flow detection (>4.0 L/m). Furthermore, the Websocket-based interface achieves data update latency under 1 seconds, ensuring a responsive and transparent management solution.
Rancang Bangun Sistem Ruangan Cerdas Berbasis IoT dan MQTT Menggunakan Platform Node-RED Kusuma, Rizky Ade; Trisaptono, Raymondus; Marpaung, Bryant Valencio; Sumual, Willyam Lucas Haposan; Rahman, Abdul
MDP Student Conference Vol 5 No 2 (2026): The 5th MDP Student Conference 2026
Publisher : Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/mdp-sc.v5i2.15499

Abstract

Energy efficiency in modern housing has become a crucial challenge due to user negligence in turning off electrical appliances when not in use. Existing Smart Home automation systems are often constrained by communication latency issues and heavy reliance on manual remote control. This study aims to design and build an IoT-based smart room energy management system that implements hybrid control logic (automatic and manual) using the ESP32 microcontroller. The system integrates sensor fusion between ultrasonic sensors and light intensity sensors (LDR) for precise occupancy detection, as well as a Pulse Width Modulation (PWM) algorithm for fan speed regulation adaptive to room temperature. Data communication is established using the MQTT (Message Queuing Telemetry Transport) protocol connected to a Node-RED dashboard as a real-time monitoring interface. Repeated measurement test results indicate that the system successfully eliminates energy waste with a 100% automatic logic success rate, where lights automatically deactivate when the room is unoccupied. Furthermore, the system demonstrates high responsiveness with an average control command transmission latency of 156.6 ms. The implementation of this system offers an effective solution for energy saving without compromising the thermal and visual comfort of the occupants.
Co-Authors Abdul Rahman Eka Puji Widiyanto Kusuma, Rizky Ade Marpaung, Bryant Valencio Trisaptono, Raymondus