const int intervalo = 500;

const int seletor = A3;

//para o display de 7 segmentos:
const int A = A4;
const int B = A5;
const int C = 7;
const int D = 8;
const int E = 5;
const int F = 3;
const int G = 6;

//para o LED RGB:
const int Red = 5;
const int Green = 3;
const int Blue = 6;

//para a barreira de 4 LEDs:
const int Bar_G = 8;
const int Bar_Y1 = 7;
const int Bar_Y2 = A5;
const int Bar_R = A4;


void setup() {
  //SETA TODOS OS PINOS COMO SAÍDAS:
  pinMode(3, OUTPUT);pinMode(5, OUTPUT);pinMode(6, OUTPUT);pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);pinMode(A4, OUTPUT);pinMode(A5, OUTPUT);pinMode(A3, OUTPUT);

}

void loop() {
  //PRIMEIRO CONTAMOS DE 0 A 9 COM O DISPLAY DE 7 SEGMENTOS,
  //pra isso, devemos setar o SELETOR como GND:
  digitalWrite(seletor,LOW);
  
  //desenha o 0:
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, LOW);
  
  delay(intervalo);
  
  //desenha o 1:
  digitalWrite(A, LOW);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, LOW);
  digitalWrite(G, LOW);
  
  delay(intervalo);
  
  //desenha o 2:
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, LOW);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, LOW);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desenha o 3:
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, LOW);
  digitalWrite(F, LOW);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desenha o 4:
  digitalWrite(A, LOW);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desenha o 5:
  digitalWrite(A, HIGH);
  digitalWrite(B, LOW);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, LOW);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desenha o 6:
  digitalWrite(A, LOW);
  digitalWrite(B, LOW);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desenha o 7:
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, LOW);
  digitalWrite(G, LOW);
  
  delay(intervalo);
  
  //desenha o 8:
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desenha o 9:
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  
  delay(intervalo);
  
  //desliga todos os leds e muda o seletor pra usar os demais LEDs da placa
  digitalWrite(A, LOW);
  digitalWrite(B, LOW);
  digitalWrite(C, LOW);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, LOW);
  digitalWrite(G, LOW);
  digitalWrite(seletor, HIGH);
  delay(50);

  //acende barreira de LEDs na ordem:
  digitalWrite(Bar_R, HIGH);
  delay(intervalo);
  digitalWrite(Bar_Y2, HIGH);
  delay(intervalo);
  digitalWrite(Bar_Y1, HIGH);
  delay(intervalo);
  digitalWrite(Bar_G, HIGH);
  delay(intervalo);
  
  //e por fim o LED RGB:
  digitalWrite(Red,HIGH);
  digitalWrite(Green,LOW);
  digitalWrite(Blue,LOW);
  delay(intervalo);
  
  digitalWrite(Red,LOW);
  digitalWrite(Green,HIGH);
  digitalWrite(Blue,LOW);
  delay(intervalo);
  
  digitalWrite(Red,LOW);
  digitalWrite(Green,LOW);
  digitalWrite(Blue,HIGH);
  delay(intervalo);

}