Smart IoT System for Agricultural Pest Control Using Special Frequency Sound Waves

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Published Nov 30, 2025
DOI https://doi.org/10.20895/inista.v8i1.2062

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Helena Kusuma Wardhani
Farid Ade Novian
Eni Noviasari
Azis Suroni
Universitas Negeri Surabaya, PSDKU Kampus 5 Magetan
Saifudin Yahya

Abstract

This research develops a prototype of an Internet of Things (IoT)-based cricket pest control system that utilizes ultrasonic waves for rice farming. Addressing global financial losses caused by pests and health risks from chemical pesticides, the main objective is to design an intelligent non-chemical solution. The methodology used is experimental Research and Development (R&D), in which the system is integrated using the ESP32 DO IT Module, a PIR Sensor for cricket detection, and a Passive Buzzer as the ultrasonic emitter (above 20 kHz). The main novelty lies in two aspects: first, the integration of IoT for automatic and targeted repellent activation through PIR Sensor detection; second, the implementation of an adaptive frequency variation mechanism on the ESP32 to periodically change waveform patterns, overcoming the cricket habituation weakness observed in static systems. Testing was conducted with 10 repetitions at 10 different frequency levels (21–30 kHz) in a controlled environment. The results show that the system successfully detects cricket presence and automatically activates the ultrasonic buzzer, achieving the highest success rate of 90% at the optimal frequency range of 25–29 kHz. The conclusion indicates that this prototype offers a smarter, more adaptive, and more efficient solution for cricket pest control in rice farming compared to simple embedded devices.

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How to Cite
Wardhani, H. K., Novian, F. A., Noviasari, E., Suroni, A., & Yahya, S. (2025). Smart IoT System for Agricultural Pest Control Using Special Frequency Sound Waves. Journal of Informatics Information System Software Engineering and Applications (INISTA), 8(1), 12-21. https://doi.org/10.20895/inista.v8i1.2062
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Vol 8 No 1 (2025): November 2025
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Articles
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