#include <Adafruit_NeoPixel.h>

#define n_leds 100
#define pin_leds 5
#define sensor_som 4

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(n_leds, pin_leds);


std::vector<std::array<byte, 4>> pixels_iterar = {{ {0,1,2,3}, {6,7,8,9} }};


void setup()
{
  Serial.begin(9600);

  pinMode(sensor_som, INPUT);

  pixels.begin();
}

void loop()
{
  if (map(analogRead(sensor_som), 0, 4095, 0, 255) > 127)
  {
    AscenderRandomico();
  }

  delay(250);
}

void AscenderRandomico()
{
  //.byte random_pixel = random(0, 256);

  pixels_iterar.push_back({random(0, 100), random(0, 100), random(0, 100), random(0, 100)});

  for (auto quarteto : pixels_iterar)
  {
    for (byte valor : quarteto)
    {
      Serial.println("Valor: " + String(valor));
      pixels.setPixelColor(valor, pixels.Color(255, 0, 0));
    }
    delay(1000);
  }
  pixels.show();
}

/*
  for (byte i = 0; i < n_leds; i++)
  {
    pixels.setPixelColor(i, pixels.Color(255, 0, 0));
  }
  pixels.show();
*/