Programming ESP32-S3 Box-3 with Arduino IDE: RGB LED Control Interface

The ESP32-S3 Box-3 development board serves as the central brain and user interface for this project. Connected via a USB-C cable for power and programming, the board runs code written in the Arduino IDE alongside the LovyanGFX library to render a graphical interface on its built-in display. When you interact with the interface, the ESP32-S3 generates Pulse Width Modulation (PWM) signals on its General Purpose Input/Output (GPIO) pins. These digital PWM signals rapidly switch the output pins on and off, varying the duty cycle to simulate different analog voltage levels. The jumper wires route these signals from the development board directly to the external RGB LED Module. Because the module features a Common Cathode 5050 package with integrated current-limiting resistors, each color channel (Red, Green, and Blue) responds independently to the varying PWM voltages. By adjusting the intensity of the red, green, and blue diodes individually through the touch interface, the module blends these primary colors to produce a wide spectrum of customizable light output without requiring any soldering.