arduino/mqtt-client-ESP32/esp32_DS18B20_temp_chart/web/README.md

ESP32 Temperature Chart Web Application

This Flask-based web application displays temperature data sent from an ESP32 device using MQTT. It includes a web interface for visualizing the temperature chart and an API to fetch temperature data.

Requirements

• Python 3.8 or later
• Virtual environment tool (like virtualenv or conda)
• MQTT Broker credentials

Local Setup

1. Clone the Repository:

   git clone [Repository URL]
   cd [Repository Name]
   

2. Create a Virtual Environment:

   python -m venv venv
   source venv/bin/activate  # On Windows: venv\Scripts\activate
   

3. Install Dependencies:

   pip install -r requirements.txt
   

4. Configure MQTT Settings in app.py: Modify the MQTT configuration settings in app.py:

   • MQTT_BROKER_URL
   • MQTT_BROKER_PORT
   • MQTT_USERNAME
   • MQTT_PASSWORD
   • MQTT_CLIENT_ID

5. Run the Application:

   python app.py
   

   Access the web interface at http://localhost:8080.

Deploying to Fly.io

1. Install Fly.io CLI: Follow the instructions on Fly.io documentation.

2. Login to Fly.io:

   flyctl auth login
   

3. Initialize Fly.io App:

   flyctl launch
   

4. Deploy the App:

   flyctl deploy
   

5. Verify Deployment:

   flyctl status
   

   Visit the URL provided by Fly.io to access your application.