Increasing pest population is the main cause of reduced crop yields and causes farmers to suffer heavy losses. The purpose of this study is to realize a tool that can help repel bird and mouse pests automatically. The prototype of this tool is controlled using the Arduino ATmega 2560 which will regulate the performance of sensors and servo motors as a mechanical system that pulls bells producing sound to repel birds and controls the buzzer to repel rice field pests. This tool works if the ultrasonic sensor or PIR sensor detects the presence of pests. The power source used is in the form of an accumulator with an output voltage of 12 volts, a servo motor as a motor driver for bells, and a buzzer to repel bird and mouse pests. The testing process carried out on this prototype shows that overall this tool can perform its functions properly.

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