text: const int ledFrc[7] = { 4, A0, A3, A2, A1, 3, 2};
  const int ledInt[7] = {9, 10, 13, 12, 11, 8, 7};
  const int pt=A5;
  const int vtm=A4;
  float volts=0;
  int numero[10][7]{
  	{1, 1, 1, 1, 1, 1, 0},
  	{0, 1, 1, 0, 0, 0, 0},
  	{1, 1, 0, 1, 1, 0, 1},
  	{1, 1, 1, 1, 0, 0, 1},
  	{0, 1, 1, 0, 0, 1, 1},
  	{1, 0, 1, 1, 0, 1, 1},
  	{1, 0, 1, 1, 1, 1, 1},
  	{1, 1, 1, 0, 0, 0, 0},
  	{1, 1, 1, 1, 1, 1, 1},
  	{1, 1, 1, 0, 0, 1, 1}
  };
  void setup(){
    	for(int i=0; i<7; i++){
  		pinMode(ledFrc[i], OUTPUT);
  		pinMode(ledInt[i], OUTPUT);
    	}
    	pinMode(pt, OUTPUT);
    	pinMode(vtm, INPUT);
  	Serial.begin(9600);
  }
  void loop(){
  	volts = (5.0/1023)*analogRead(vtm); // 5/1023=0 MAS 5.0/1023!=0 (se ligar no valor float)
  	for(int i=0; i<7; i++){
  		digitalWrite(ledInt[i], numero[(int)volts][i]);
  		digitalWrite(ledFrc[i], numero[((int)(volts*10))%10][i]);
  	}
  	digitalWrite(pt, HIGH);
  	delay(10);
  }