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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

Clone the Repository:

git clone [Repository URL]
cd [Repository Name]

Create a Virtual Environment:

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

Install Dependencies:
```
pip install -r requirements.txt
```
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
Run the Application:
```
python app.py
```
Access the web interface at http://localhost:8080.

Deploying to Fly.io

Install Fly.io CLI: Follow the instructions on Fly.io documentation.
Login to Fly.io:
```
flyctl auth login
```
Initialize Fly.io App:
```
flyctl launch
```
Deploy the App:
```
flyctl deploy
```
Verify Deployment:
```
flyctl status
```
Visit the URL provided by Fly.io to access your application.