Coffee Roaster Data Logger

A Python-based data logging application for coffee roasting that captures temperature and humidity data from multiple sensors.

Features

• Real-time data collection from DHT22 and SHT31 sensors
• Web interface for viewing roast sessions and data
• SQLite database for data storage
• Configurable sensor setup
• Live chart updates during roasting

Setup

1. Install dependencies:

pip install -r requirements.txt

2. Configure sensors in config.json

3. Run the application:

python src/app.py

4. Access the web interface at http://localhost:5000

Hardware Requirements

• Raspberry Pi Compute Module
• DHT22 temperature/humidity sensor
• Adafruit SHT31 sensor
• GPIO and I2C connections as configured

Project Structure

src/
├── sensors/     # Sensor interface modules
├── database/    # Database models and operations
├── web/         # Flask web application
└── utils/       # Utility functions
static/          # CSS and JavaScript files
templates/       # HTML templates
tests/           # Test files