Reddit Question for FastLED

#include <FastLED.h>

// Define LED pin
#define LED_DATA_PIN 2  // PB2 (Physical Pin 6)  // PD5 (Pin 25) for LED data
#define NUM_LEDS 1  // Single addressable LED

CRGB leds[NUM_LEDS];

const uint8_t colors[][3] = {
  {255, 0, 0},    // Red
  {0, 255, 0},    // Green
  {0, 0, 255},    // Blue
  {255, 255, 0},  // Yellow
  {128, 0, 128},  // Purple
  {0, 255, 255},  // Cyan
  {255, 255, 255} // White
};
const uint8_t numColors = sizeof(colors) / sizeof(colors[0]);

void setup() {
    // Configure LED data pin as output
    PORTB.DIRSET = (1 << LED_DATA_PIN);  // Ensure PB2 is set as output
    FastPin<LED_DATA_PIN>::setOutput();
    FastLED.addLeds<WS2812, LED_DATA_PIN, GRB>(leds, NUM_LEDS);
    FastLED.setBrightness(20); // Set brightness to 20% (51 out of 255)
}

void loop() {
    // Cycle through all colors for the first LED
    for (int i = 0; i < numColors; i++) {
        leds[0] = CRGB(colors[i][0], colors[i][1], colors[i][2]);
        FastLED.show();
        delay(500);
    }
}