//Comando SWITCH e CASE.

#define pinBotao 2 // constante parece com variavel 

#define pinA 10
#define pinB 9
#define pinC 6
#define pinD 7
#define pinE 8
#define pinF 11
#define pinG 12
#define pinPD 5

int numero = 10;

boolean botaoAnt = false;
boolean botaoAtu = false;

void setup() { 
  // put your setup code here, to run once:
   botaoAtu = digitalRead (pinBotao);
    if (botaoAtu && !botaoAnt) {
      numero++; // faça soma de 1 em 1

      if (numero > 9) {
        numero = 0;
      }
    }
   
   botaoAnt = botaoAtu;
   
    pinMode(pinBotao, INPUT);


  pinMode(pinA, OUTPUT);
  pinMode(pinB, OUTPUT);
  pinMode(pinC, OUTPUT);
  pinMode(pinD, OUTPUT);
  pinMode(pinE, OUTPUT);
  pinMode(pinF, OUTPUT);
  pinMode(pinG, OUTPUT);
  pinMode(pinPD, OUTPUT);



}

void loop() {
  // put your main code here, to run repeatedly:





  switch (numero) { //É um comando de direcionamento, incluindo o que eu apenas quero controlar.
    case 0:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,HIGH);
      digitalWrite(pinE,HIGH);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,LOW);
      digitalWrite(pinPD,LOW);
      break;
    case 1:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,LOW);
      digitalWrite(pinD,LOW);
      digitalWrite(pinE,HIGH);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,HIGH);
      break;
    case 3:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,HIGH);
      digitalWrite(pinE,LOW);
      digitalWrite(pinF,LOW);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,HIGH);
      break;
    case 4:
      digitalWrite(pinA,LOW);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,LOW);
      digitalWrite(pinE,LOW);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,LOW);
      break;
    case 5:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,LOW);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,HIGH);
      digitalWrite(pinE,LOW);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,LOW);
      break;
    case 6:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,LOW);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,HIGH);
      digitalWrite(pinE,HIGH);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,LOW);
      break;
    case 7:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,LOW);
      digitalWrite(pinE,LOW);
      digitalWrite(pinF,LOW);
      digitalWrite(pinG,LOW);
      digitalWrite(pinPD,LOW);
      break;
    case 8:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,HIGH);
      digitalWrite(pinE,HIGH);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,LOW);
      break;
    case 9:
      digitalWrite(pinA,HIGH);
      digitalWrite(pinB,HIGH);
      digitalWrite(pinC,HIGH);
      digitalWrite(pinD,HIGH);
      digitalWrite(pinE,LOW);
      digitalWrite(pinF,HIGH);
      digitalWrite(pinG,HIGH);
      digitalWrite(pinPD,LOW);
      break;

    default:
      digitalWrite(pinA,LOW);
      digitalWrite(pinB,LOW);
      digitalWrite(pinC,LOW);
      digitalWrite(pinD,LOW);
      digitalWrite(pinE,LOW);
      digitalWrite(pinF,LOW);
      digitalWrite(pinG,LOW);
      digitalWrite(pinPD,HIGH);
      break;
      
      // Existe um comando opcional chamado (default), para caso não exista números.
 }
}