🌐 ESP32 Web Server with DHT11 (MicroPython)

This project reads temperature and humidity data from a DHT11 sensor using an ESP32 board running MicroPython, and displays it on a live-updating web page.

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📦 Features

• 🛰️ Connects to Wi-Fi
• 🌡️ Reads real-time temperature & humidity
• 🌐 Hosts a simple web server
• 📱 Mobile + Desktop responsive
• 🔄 Auto-refreshes every 5 seconds
• 💻 Built using MicroPython

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🛠️ Hardware Components

Component	Quantity
ESP32 Dev Board	1
DHT11 Sensor	1
Breadboard	1
Jumper Wires	As needed
10KΩ Resistor	1 (optional but recommended)

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⚙️ Circuit Diagram

💡 10KΩ resistor is connected between VCC and DATA of the DHT11 for stable communication.

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🌐 Web Interface

The ESP32 serves this HTML interface to any device connected to the same Wi-Fi:

✨ Auto-refreshes every 5 seconds with latest sensor data.

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🔌 Wiring Setup

DHT11 Pin	ESP32 Pin
VCC	3.3V
GND	GND
DATA	GPIO 4

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💡 How It Works

1. ESP32 connects to your Wi-Fi network.
2. It initializes the DHT11 sensor.
3. Every 2 seconds, it reads temperature and humidity.
4. It serves these values on a local web page that refreshes every 5 seconds.

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🧪 Sample Output (Serial Console)

Connected. IP: 192.168.1.42 Web server running... Client connected from ('192.168.1.17', 50762)

🚀 Future Improvements

• 📊 Live charts using JavaScript (Chart.js)
• 📁 Save logs to file or cloud
• 📤 Send alerts via email or Telegram
• 🌎 Deploy to internet using port forwarding

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👨‍💻 Author

• ✍️ Kritish Mohapatra

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📅 Date

• 🗓️ 29 April 2025

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