#define LED_R D2
#define LED_G D3
#define LED_B D4

#define BTN D12

const int segmentos[7] = {
  D5, D6, D7, D8, D9, D10, D11
};

int numerosNombre[] = {
  1, 3, 9, 7, 2, 1, 5, 1, 2
};

int indice = 0;

unsigned long previousMillis = 0;
const long intervalo = 1000;

const byte digitos[10][7] = {
  {0,0,0,0,0,0,1},
  {1,0,0,1,1,1,1},
  {0,0,1,0,0,1,0},
  {0,0,0,0,1,1,0},
  {1,0,0,1,1,0,0},
  {0,1,0,0,1,0,0},
  {0,1,0,0,0,0,0},
  {0,0,0,1,1,1,1},
  {0,0,0,0,0,0,0},
  {0,0,0,0,1,0,0}
};

void setup() {
  Serial.begin(115200);
  pinMode(LED_R, OUTPUT);
  pinMode(LED_G, OUTPUT);
  pinMode(LED_B, OUTPUT);
  pinMode(BTN, INPUT_PULLUP);
  for (int i = 0; i < 7; i++) {
    pinMode(segmentos[i], OUTPUT);
  }
  randomSeed(analogRead(A0));
  Serial.println("Sistema iniciado");
}

void loop() {
  mostrarNombre();
  controlSerial();
}

void mostrarNombre() {
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= intervalo) {
    previousMillis = currentMillis;
    mostrarNumero(numerosNombre[indice]);
    indice++;
    if (indice >= 9) {
      indice = 0;
    }
  }
}

void mostrarNumero(int numero) {
  for (int i = 0; i < 7; i++) {
    digitalWrite(segmentos[i], digitos[numero][i]);
  }
}

void controlSerial() {
  if (Serial.available()) {
    String comando = Serial.readStringUntil('\n');
    comando.toLowerCase();
    if (comando.indexOf("apagar") >= 0) {
      digitalWrite(LED_R, LOW);
      digitalWrite(LED_G, LOW);
      digitalWrite(LED_B, LOW);
      Serial.println("LEDs apagados");
    }
    else {
      if (comando.indexOf("rojo") >= 0) {
        digitalWrite(LED_R, HIGH);
      }
      if (comando.indexOf("verde") >= 0) {
        digitalWrite(LED_G, HIGH);
      }
      if (comando.indexOf("azul") >= 0) {
        digitalWrite(LED_B, HIGH);
      }
    }
  }
}