ESP8266 WiFi HTTP POST Request Example

This project demonstrates how to connect an ESP8266 microcontroller to a WiFi network and send periodic HTTP POST requests to a backend server. The project is useful for applications like IoT devices that require data logging or reporting to a remote server at regular intervals.

Features

• Connects to a WiFi network using credentials.
• Sends HTTP POST requests to a specified backend server every 4 hours.
• Automatically reconnects to WiFi if the connection is lost.

Requirements

• ESP8266 (e.g., NodeMCU ESP8266)
• Arduino IDE or PlatformIO (for development)
• WiFi access point
• Backend server to handle HTTP POST requests

Libraries Used

• ESP8266WiFi: For connecting the ESP8266 to a WiFi network.
• ESP8266HTTPClient: For sending HTTP POST requests.

Installation

1. Clone this repository:

   git clone https://github.com/umuttopalak/electric-checker-esp8266.git

2. Open the project in Arduino IDE or PlatformIO.

3. Install the required libraries via the Arduino Library Manager:

   • ESP8266WiFi
   • ESP8266HTTPClient

4. Modify the following lines in the code to include your WiFi credentials and backend URL:

   const char *ssid = "your-wifi-name";
   const char *password = "your-wifi-password";
   const char *serverUrl = "your-backend-url";

5. Compile and upload the code to your ESP8266 board.

Usage

1. Once uploaded, the ESP8266 will attempt to connect to the specified WiFi network.
2. After a successful connection, the ESP8266 will send an HTTP POST request to the backend server every 4 hours.
3. If the WiFi connection is lost, the device will try to reconnect automatically.

License

This project is licensed under the MIT License. See the LICENSE file for more details.