#include <Adafruit_NeoPixel.h>

constexpr uint8_t DELAYVAL = 50;

Adafruit_NeoPixel matrix(40, 2, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel dot(1, 9, NEO_GRB + NEO_KHZ800);

void setup() {
  matrix.begin();
  dot.begin();
}

void loop() {
  matrix.clear();
  dot.clear();
  dot.setPixelColor(0, dot.Color(0, 150, 0));
  dot.show();
  for (int i = 0; i < 10; i++) {
    matrix.setPixelColor(i, matrix.Color(150, 150, 0));
    matrix.show();
    delay(DELAYVAL);
  }
  for (int i = 10; i < 20; i++) {
    matrix.setPixelColor(i, matrix.Color(150, 0, 150));
    matrix.show();
    delay(DELAYVAL);
  }
  for (int i = 20; i < 30; i++) {
    matrix.setPixelColor(i, matrix.Color(0, 150, 150));
    matrix.show();
    delay(DELAYVAL);
  }
  for (int i = 30; i < 40; i++) {
    matrix.setPixelColor(i, matrix.Color(0, 150, 0));
    matrix.show();
    delay(DELAYVAL);
  }
  delay(10000);
}