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Creating a Control Panel (Web Server) | NexaLearn IoT Lab | NexaLearn

Internet of Things (IoT)35 دقيقة

Creating a Control Panel (Web Server)

Host a web page inside the ESP32 to control it from your phone.

Lesson Content

The board can act as a server. You can write simple HTML code that gets sent to any browser that requests the board's IP address. When the user presses a button on the page, the browser sends a GET request back to the board, which in turn turns on an LED or relay.

Components Needed

ESP32LED

Wiring Notes

Connect the LED to pin 2.

Code Example

// يتطلب استخدام مكتبة WebServer.h
// نعرّف مسارات مثل server.on("/led/on", []() {
//   digitalWrite(2, HIGH);
//   server.send(200, "text/plain", "LED IS ON");
// });

Common Mistakes

Writing large HTML code inside Arduino as a String variable, consuming memory and making the code unreadable. It's better to use SPIFFS to store files.

Next Lesson

Reading Electronic Schematics