This document describes a smart dustbin system that uses IoT technology to notify the proper authorities when garbage bins are nearly full. An ultrasonic sensor detects the fill level of the dustbin and an ESP8266 WiFi module sends this data via the internet. When a bin reaches 70% capacity, an SMS alert is sent using a GSM module. This helps waste collection trucks only service bins that need emptying, saving time, fuel and reducing pollution. The system aims to improve waste management and support initiatives for smart cities.