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Video 50: Control RGB LED from anywhere in the world
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Learn how to control RGB LEDs remotely using an ESP32 microcontroller, Wi-Fi, and MQTT protocol, including hardware setup, Adafruit IO configuration, MQTT basics, Arduino coding, and Color Picker usage.

* **Introduction to the project**: Using ESP32 microcontroller with Wi-Fi and MQTT to control RGB LEDs.
* **What is MQTT**: Lightweight messaging protocol for bidirectional communication.
* **Adafruit IO setup**: Creating Adafruit IO account, configuring dashboards, feeds, and controls.
* **Wiring explained**: Explanation of wiring connections for RGB LEDs with resistors to ESP32.
* **Code explained**: Overview of Arduino code for subscribing to MQTT topics and controlling LEDs.
* **Selecting ESP32 board and COM port**: Demonstrating board and port selection in Arduino IDE.
* **Project demonstration**: Live demo of adjusting RGB LED colors using sliders and Color Picker.
* **What is RGB LED?**: Explanation of RGB LED structure and operation.
* **RGB Color**: Understanding RGB color combinations and mixing using a Color Picker.

**Video**

.. raw:: html

    <iframe width="700" height="500" src="https://www.youtube.com/embed/-9q1GfGsnr0?si=guLPPcUGQBoyW1Fo" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

.. .. **Related On-line Tutorials**