🗑️ Smart Waste Segregation System (IoT)

Automated. Hygienic. Efficient.

An IoT-based waste management solution designed to segregate Wet and Dry waste at the source using sensor fusion.

(Click here to watch the Demo Video)

💡 The Problem

Improper waste disposal leads to landfills overflowing with mixed garbage, making recycling impossible. Manual segregation is hazardous and inefficient.

⚙️ How It Works

The system uses a multi-sensor approach to classify waste in real-time:

1. Detection: An Ultrasonic Sensor detects a user approaching and automatically opens the lid (Touch-free interface).
2. Classification: A Moisture Sensor analyzes the waste content.
   • High Moisture: Classified as Wet Waste.
   • Low Moisture: Classified as Dry Waste.
3. Sorting: A Servo Motor rotates the internal chute to direct the waste into the correct compartment.

🛠️ Hardware Stack

• Microcontroller: Arduino Uno (ATmega328P)
• Sensors: * HC-SR04 Ultrasonic Sensor (Proximity)
  • Soil Moisture Sensor Module (Classification)
• Actuators: SG90 Servo Motors (Lid & Chute control)
• Language: C++ (Arduino IDE)

🔌 Circuit Logic

The system logic is written in C++. It continuously polls the sensor data loop. When the ultrasonic distance < 20cm, it triggers the interrupt to open the lid. Upon waste deposit, the moisture threshold determines the angle of the sorting servo ($0^\circ$ for Dry, $180^\circ$ for Wet).

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Built by [Mohit Nautiyal]