🚮 Smart Disposal Machine (SDM)

An IoT-enabled, hygienic, and efficient waste disposal solution for smarter garbage management in high-traffic areas.

✨ Overview

The Smart Disposal Machine (SDM) is designed to revolutionize waste management in places like airports, railway stations, and university campuses. With real-time fill monitoring, expandable storage, and semi-automated bag sealing, SDM ensures both operational efficiency and superior sanitation.

⚡ Quick Start Guide

1. Power Up: Insert 18650 Li-Ion batteries and power on the device.
2. Connect via Blynk:
   • Download the Blynk app.
   • Connect using the ESP32 credentials provided.
3. Live Monitoring:
   • Track bin fill levels in real time on the app.
4. Expand Storage:
   • Use the expansion feature in the app when notified of a near-full status.
5. Bag Replacement:
   • Remove the sealed bag when full.
   • Insert a new bag to continue operation.

🛠️ Installation Instructions

• Install Required Libraries: Ensure all necessary libraries are added to your development environment.
• Flash Firmware: Upload the code to both the ESP-32 and Arduino UNO.
• Hardware Setup: Connect all components as per the circuit diagram in the documentation.
• App Binding: Launch the Blynk app and bind your device for live control and monitoring.

🚀 Basic Usage

• Fill Detection: Four ultrasonic sensors continuously monitor waste levels.
• Remote App Control: The Blynk app displays current fill status and enables remote expansion.
• Bag Sealing: Semi-automated sealing via a motor-driven thread wrap ensures hygiene.
• LED Indicators: Three LEDs provide a local, visual signal of waste levels.

🔧 Prerequisites

Software

• Arduino IDE
• Blynk App
• OnShape (for CAD modeling)

Hardware

• ESP-32
• Arduino UNO
• HC-SR04 Ultrasonic Sensors (x4)
• Servo Motors
• Nichrome Wire
• L298N Motor Driver
• Relay Modules
• LEDs, Batteries, Acrylic Sheets

🤝 Contributing

We welcome contributions! Please see the CONTRIBUTING.md for guidelines on how to get started.

📄 License

This project is licensed under the MIT License. See the LICENSE file for more information.

🧰 Technologies Used

Category	Details
Microcontrollers	ESP-32, Arduino UNO
Sensors	HC-SR04 Ultrasonic Sensors
IoT	Blynk App, WiFi
CAD Tools	OnShape, DWG for laser cutting
Programming	C++, Arduino Sketch

Empowering smart, sustainable, and sanitary waste management for the spaces that need it most!