ECOBIN 🛠️

Hardware Integration for Waste2Worth

The hardware counterpart to the Waste2Worth app, enabling IoT-based smart composting monitoring. This repository contains firmware for sensor data collection, device communication, and integration with the Waste2Worth Flutter app.

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🌟 Key Features

• Real-time Sensor Monitoring: Measures temperature, humidity, pH, and gas levels (NH₃/CO₂).
• WiFi/Bluetooth Connectivity: ESP32-based communication with the Waste2Worth app.
• Data Logging: Stores latest compost metrics when offline.

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🛠️ Hardware Components

Component	Quantity	Purpose
ESP32	1	Main microcontroller (WiFi/BLE)
DHT11	1	Temperature & humidity sensing
MQ-135	1	Gas (NH₃/CO₂) detection
pH Sensor	1	Compost acidity monitoring

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⚙️ Software Stack

Need these dependencies:

• PlatformIO: Core development framework.
• Libraries:
  • DHT sensor library (Temperature/Humidity)
  • Esp32 Firebase Client (Firebase integration)

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📦 Setup & Installation

1. Clone the Repository

git clone https://github.com/your-username/ECOBIN.git  
cd ECOBIN  

2. PlatformIO Setup

• Install PlatformIO VSCode extension.
• Open the project folder in VSCode.

3. Configure Hardware

Edit these values in the src/main.cpp file:

#define WIFI_SSID "Your_SSID"  
#define WIFI_PASS "Your_Password"  
#define FIREBASE_HOST "YOUR_FIREBASE_REAL_TIME_DATABASE_URL" // without https:// and trailing slash
#define FIREBASE_AUTH "YOUR_FIREBASE_PROJECT_API_KEY"  

4. Install the Dependencies

• Import the required libraries by downloading the zip files of the respective directives and place them in the lib directory after unzipping.

5. Upload to Device

• Connect ESP32 via USB.
• Click Upload in PlatformIO.

6. Repository Structure

ECOBIN/
├── lib/      # External libraries imported (PlatformIO manages dependencies)
├── src/      # Main firmware code
│ ├── main.cpp      # Core code
├── test/        # Unit tests (PlatformIO test framework)
├── platformio.ini      # Build configuration
└── README.md     

7. 🔌 Integration with Waste2Worth App

Data Flow:

Sensors → ESP32 → (MQTT) → Firebase → Flutter App

Protocol: JSON payload format:

{  
  "temperature": 25.6,  
  "humidity": 60,  
  "ph": 6.8,  
  "gas_ppm": 120  
}  

8. 🚀 Deployment

• Assemble hardware in compost bin (waterproof enclosure recommended).
• Power options:
  • 18650 Li-ion battery (solar-charged)
  • 5V DC adapter