#include <FastLED.h>

// Define the number of LEDs and the pin
#define NUM_LEDS 16
#define DATA_PIN PB6

CRGB leds[NUM_LEDS];

void setup() {
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(50);
}

void loop() {
  // A simple example to light up the LEDs in red, green, and blue
  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Red;
    FastLED.show();
    delay(50);
  }
  delay(500);

  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Green;
    FastLED.show();
    delay(50);
  }
  delay(500);

  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Blue;
    FastLED.show();
    delay(50);
  }
  delay(500);
}