ESP32 Web Server with Morse Code Flashing

This repository contains an Arduino sketch for setting up an ESP32-based web server capable of serving HTTP requests and flashing an LED in Morse code. Additionally, it includes a Flutter application for interacting with the web server, fetching data, and sending Morse code messages.

ESP32 Web Server

Features

• Web Server: Utilizes the ESP32's capabilities to create a simple HTTP server.
• JSON Response: Provides a JSON response endpoint for retrieving predefined messages.
• Morse Code Flashing: Parses custom messages and flashes an LED in Morse code accordingly.
• Easy Integration: Straightforward setup and usage, suitable for beginners and experienced developers alike.

Getting Started

1. Clone the Repository: Clone this repository to your local machine.
2. Install Libraries: Ensure you have the required libraries installed. The necessary libraries are WiFi, WebServer, and ArduinoJson.
3. Configure WiFi: Replace "your-ssid" and "your-password" with your WiFi credentials in the ssid and password variables.
4. Hardware Setup: Connect an LED to pin 2 (or modify ledPin if using a different pin) of your ESP32 board.
5. Upload the Sketch: Upload the provided sketch (esp32_web_server.ino) to your ESP32 board using the Arduino IDE or platform of your choice.

Usage

• Access the /data endpoint in your browser or through a tool like cURL to receive a predefined JSON message and see the LED flash.
• Send a POST request to the /morse endpoint with a message parameter containing the text you want to convert to Morse code. The ESP32 will flash the LED accordingly and respond with a confirmation message.

Flutter Application

The repository also includes a Flutter application (flutter_demo_for_using_esp_server) for interacting with the ESP32 web server.

Features

• Fetch Data: Fetches predefined data from the ESP32 web server.
• Send Morse Request: Sends custom messages to the ESP32 web server to be flashed in Morse code.
• Visual Feedback: Displays response messages and loading indicators for user feedback.

Usage

1. Update the IP Address: Obtain the IP address of your ESP32 and update the URL in the Flutter application (lib/main.dart) with the correct IP address.
2. Run the Application: Run the Flutter application on your mobile device or emulator.
3. Fetch Data: Press the "Fetch Data" button to fetch predefined data from the ESP32 web server.
4. Send Morse Request: Press the "Send Morse Request" button to send a custom message to be flashed in Morse code by the ESP32.

Resources

• Medium Article: Read the detailed tutorial on building the ESP32 web server and integrating it with Flutter.
• ESP32 Documentation: Explore the ESP32 documentation for more information on the HTTP server capabilities.

Contributions

Contributions to this project are welcome! Feel free to fork this repository, make changes, and submit a pull request. If you encounter any issues or have suggestions for improvements, please open an issue.