int l_a = 14;
int l_b = 25;
int l_c = 32;
int l_d = 26;
int l_e = 12;
int l_f = 27;
int l_g = 33;
int botao = 15;
int num = 0;
boolean leitura = 0;

void setup() {
  pinMode(l_a, OUTPUT);
  pinMode(l_b, OUTPUT);
  pinMode(l_c, OUTPUT);
  pinMode(l_d, OUTPUT);
  pinMode(l_e, OUTPUT);
  pinMode(l_f, OUTPUT);
  pinMode(l_g, OUTPUT);
  pinMode(botao, INPUT);
}

void loop() {
  leitura = digitalRead(botao);
  if(leitura){
    sorteio();
    delay(100);
  }
  
}

void um(){
  digitalWrite(l_a, 0);
  digitalWrite(l_b, 0);
  digitalWrite(l_c, 0);
  digitalWrite(l_d, 1);
  digitalWrite(l_e, 0);
  digitalWrite(l_f, 0);
  digitalWrite(l_g, 0);

}

void dois(){
  digitalWrite(l_a, 0);
  digitalWrite(l_b, 0);
  digitalWrite(l_c, 1);
  digitalWrite(l_d, 0);
  digitalWrite(l_e, 1);
  digitalWrite(l_f, 0);
  digitalWrite(l_g, 0);
}

void tres(){
  digitalWrite(l_a, 0);
  digitalWrite(l_b, 0);
  digitalWrite(l_c, 1);
  digitalWrite(l_d, 1);
  digitalWrite(l_e, 1);
  digitalWrite(l_f, 0);
  digitalWrite(l_g, 0);
}

void quatro(){
  digitalWrite(l_a, 1);
  digitalWrite(l_b, 0);
  digitalWrite(l_c, 1);
  digitalWrite(l_d, 0);
  digitalWrite(l_e, 1);
  digitalWrite(l_f, 0);
  digitalWrite(l_g, 1);
}

void cinco(){
  digitalWrite(l_a, 1);
  digitalWrite(l_b, 0);
  digitalWrite(l_c, 1);
  digitalWrite(l_d, 1);
  digitalWrite(l_e, 1);
  digitalWrite(l_f, 0);
  digitalWrite(l_g, 1);
}

void seis(){
  digitalWrite(l_a, 1);
  digitalWrite(l_b, 1);
  digitalWrite(l_c, 1);
  digitalWrite(l_d, 0);
  digitalWrite(l_e, 1);
  digitalWrite(l_f, 1);
  digitalWrite(l_g, 1);
}

void sorteio(){
  num=random(1,8);
  if(num==1){
    um();
  }
  else if(num==2){
    dois();
  }
  else if(num==3){
    tres();
  }
  else if(num==4){
    quatro();
  }
  else if(num==5){
    cinco();
  }
  else{
    seis();
  }

}