🔌 ESP32 GPIO Control via Web Interface

This project demonstrates how to set up an ESP32 as a Wi-Fi Access Point that hosts a web server. The server allows you to remotely control GPIO 15 (connected to pin 13 in code) via a simple HTML interface with ON/OFF (HIGH/LOW) buttons.

📷 Preview

When connected to the ESP32 Access Point and visiting its IP address, you’ll see a web page with buttons to control GPIO 15:

[ HIGH ] [ LOW ]

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🚀 Features

• ESP32 runs in Access Point mode — no external Wi-Fi network needed.
• Built-in web server on port 80.
• Simple HTML interface to control a GPIO pin.
• Useful for basic home automation or IoT control experiments.

🛠️ Hardware Requirements

• ESP32 development board
• LED, Relay module, or any output device connected to GPIO 15 (pin 13 in code)
• USB cable for programming

🧑‍💻 Code Overview

• WiFi.softAP(): Sets up the ESP32 as an access point with SSID ESP32_AP and password 12345678.
• WiFiServer: Hosts a basic HTTP server.
• GPIO 15: Controlled based on HTTP requests /HIGH and /LOW.

🔧 How to Use

1. Flash the Code to your ESP32 using Arduino IDE or PlatformIO.
2. Connect to ESP32 Wi-Fi Network
   • SSID: ESP32_AP
   • Password: 12345678
3. Open a browser and go to: http://192.168.4.1
4. Click the buttons to toggle GPIO 15 HIGH or LOW.

📂 Project Files

• main.ino — Source code for the ESP32 web server
• README.md — Project documentation

📝 Notes

• GPIO 15 (pin 13 in the sketch) is used for control. Modify controlPin if you want to use another pin.
• Web interface is minimal and responsive; can be expanded for more GPIOs.

📄 License

This project is open-source and available under the MIT License.

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Made with ❤️ using ESP32