const int Pinos[7] = { 2, 3, 4, 5, 6, 7, 8 };

 const byte Caracteres[4] =

                            {
                               0x73, 
                               0x77, 
                               0x87, 
                               0x3F, 
                            }; 

void setup()

{

 for(int i = 0; i < 7; i++)

 {

 pinMode(Pinos[i], OUTPUT);

 }

}

void escreveDisplay(int caractere)

{

 byte caractereBit = Caracteres[caractere];

 for (int i = 0; i < 7; i++)

 {

 int bit = bitRead(caractereBit, i);

 digitalWrite(Pinos[i], bit);

 }

}

void loop()

{

 for(int cnt = 0; cnt < 4; cnt++)

 {

 escreveDisplay(cnt);

 delay(1000);

 }

}