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Fauzia Nur Azmi
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Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Mechanical Engineering

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Temperature-Responsive DC Fan Control System Using ESP32 and DHT22 for Improved Energy Efficiency Fauzia Nur Azmi; Muhammad Rafi Rizky Putra; Muhammad Ilham Darmanto; Gathan Warino; Putri Wulandari
Seminar Nasional Teknik Elektro Vol. 4 No. 1 (2025): SNTE III
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46962/snte.25.063

Abstract

This paper presents the design and development of an automatic fan control system based on the ESP32 microcontroller and a DHT22 temperature sensor. The system is designed to automatically turn the fan on or off and adjust its speed using PWM signals, depending on the ambient temperature. The fan remains off when the temperature is below 21°C and operates at increasing speeds for temperatures above 21°C, with PWM values ranging from 90 to 255. The primary goal is to offer an energy-efficient solution that can effectively respond to changing environmental conditions. Compared to manual systems, this automatic system offers faster response times, reduces energy consumption, and eliminates the need for human intervention. Testing demonstrated a clear and consistent relationship between temperature and fan speed, confirming that the control logic functioning as intended. This system can be effectively implemented in small-scale cooling systems requiring responsive and efficient temperature regulation.
Co-Authors Gathan Warino Muhammad Ilham Darmanto Muhammad Rafi Rizky Putra PUTRI WULANDARI