Design and Implementation of a Smart Ultrasonic Repellent Wrist Band for Multi-Species Insect and Rodent Deterrence
Keywords:
555 timer, Astable multivibrator, DIP switch, Insect control, Piezo buzzer, Ultrasonic repellent, Wearable deviceAbstract
This paper presents the design, implementation, and evaluation of a wearable electronic device aimed at repelling various insects and small animals using ultrasonic frequencies. The device, structured as a wrist band, employs an astable multivibrator circuit based on a 555 timer IC to generate variable ultrasonic frequencies that are unpleasant to species such as mosquitoes, rodents, and domestic animals. The system includes a DIP switch-based mode selection mechanism, piezoelectric ultrasonic emitters, and power-efficient design elements. Simulations in Proteus and hardware prototypes confirm the feasibility and effectiveness of the device in species-specific repellent operation.
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