Object Detection Alarm Project Using Ultrasonic Sensor

Smart Distance Alert System with Buzzer and Sensor This compact object detection system uses an ultrasonic sensor to detect motion or presence within a specific distance. It is ideal for various practical uses such as tank water level alert, intruder detection, or protecting crops from animals. Powered via Type-C charger, it runs on a rechargeable battery, making it fully portable and efficient for outdoor or indoor use. Specifications Sensor Type: HC-SR04 Ultrasonic Module Microcontroller: Arduino Nano R3 Detection Range: Adjustable (default 15cm) Alarm: 5V Active Buzzer for sound alert Power Module: TP4056 Li-Ion Charger with Type-C input Cable: 1.6mm Slim 22AWG wire for connections Applications: Tank overflow alert, theft detector, crop protection
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