[arduino code examples for AS]-07 how to use WS2812B RGB LED by vertical direction

Code:
/*

  Made by KinCony IoT: https://www.kincony.com

  This code controls 1 WS2812 RGB LEDs connected to GPIO 16 on an ESP32-S3.

  Each LED will be set to blue with adjustable brightness.

  The Adafruit NeoPixel library is used to communicate with the WS2812 LEDs.



  Hardware setup:

  - WS2812 RGB LEDs are connected to GPIO 15 (data pin).

  - Total number of LEDs: 3.

*/



#include <Adafruit_NeoPixel.h>



// Create an instance of the Adafruit_NeoPixel class

// Parameters: number of LEDs (3), data pin (GPIO 15), LED type (NEO_GRB with 800 KHz communication)

Adafruit_NeoPixel rgb_display = Adafruit_NeoPixel(1, 16, NEO_GRB + NEO_KHZ800);



void setup() {

  // Initialize the NeoPixel library and prepare the LEDs for use

  rgb_display.begin();

}



void loop() {

  /*

    rgb_display.setPixelColor(uint16_t n, uint32_t c);

    This function sets the color of a specific LED.



    Parameters:

    - n: The LED number (starting from 0).

    - c: The color to set the LED to, in hexadecimal (0x0000ff = blue in RGB format).

  */



  // Set the first LED (LED 0) to blue

  rgb_display.setPixelColor(0, (0x0000ff)); // Blue color for the first LED (index 0)

  rgb_display.setBrightness(100);           // Set brightness to 100 out of 255

  rgb_display.show();                       // Update the LED to reflect the change



}