This document describes a smart dustbin that uses an Arduino and ultrasonic sensor. The smart dustbin opens automatically when garbage comes near the ultrasonic sensor. It aims to make waste management easier by reducing the need for human interaction to open the dustbin. The smart dustbin consists of an Arduino, servo motor, ultrasonic sensor, dustbin, and jumper wires. It works by using the ultrasonic sensor to detect when an object is near the dustbin and signals the Arduino, which activates the servo motor to open the dustbin lid.