7 Digit Display

7seg.ino

int pins[7];
void setup(){
    pinMode(4, OUTPUT);
    pinMode(3, OUTPUT);
    pinMode(2, OUTPUT);
    pinMode(5, OUTPUT);
    pinMode(6, OUTPUT);
    pinMode(7, OUTPUT);
    pinMode(9, OUTPUT);
    pinMode(10, OUTPUT);
    pins[0] = 3;
    pins[1] = 2;
    pins[2] = 5;
    pins[3] = 6;
    pins[4] = 7;
    pins[5] = 9;
    pins[6] = 10;
    //pins[7] = 4;
    Serial.begin(9600);
}
void loop(){
  for(int x = 0; x<10; x++){
    disNum(x);
    delay(2000);
    clearNum();
  }
}
void clearNum(){
    for(int x=0; x<7; x++){
        digitalWrite(pins[x], LOW);
        Serial.print("--");
        Serial.println(pins[x]);
    }
    return;
}
void disNum(int number){
    //Displays a single digit number using a ELS321HDB, RS#276-0075
    /*
    10 mid            1 top(Pin3 to allow Serial)
    9 left top        2 right top
    8 ground          3 ground
    7 left bottom     4 right dot(unused here)
    6 bottom          5 right bottom
    Using Arduino Uno REV.3
    Pins 3,2,5,6,7,9,10
    */
    clearNum();
    switch(number){
        case 10: //dot
        digitalWrite(4, HIGH);
        Serial.println(10);
        break;
        case 0:
        digitalWrite(2, HIGH);
        digitalWrite(3, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(7, HIGH);
        digitalWrite(10, HIGH);
        Serial.println(number);
        break;
        case 1:
        digitalWrite(2, HIGH);
        digitalWrite(5, HIGH);
        Serial.println(number);
        break;
        case 2:
        digitalWrite(2, HIGH);
        digitalWrite(3, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(7, HIGH);
        digitalWrite(9, HIGH);
        Serial.println(number);
        break;
        case 3:
        digitalWrite(2, HIGH);
        digitalWrite(3, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(9, HIGH);
        Serial.println(number);
        break;
        case 4:
        digitalWrite(2, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(9, HIGH);
        digitalWrite(10, HIGH);
        Serial.println(number);
        break;
        case 5:
        digitalWrite(3, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(9, HIGH);
        digitalWrite(10, HIGH);
        Serial.println(number);
        break;
        case 6:
        digitalWrite(3, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(7, HIGH);
        digitalWrite(9, HIGH);
        digitalWrite(10, HIGH);
        Serial.println(number);
        break;
        case 7:
        digitalWrite(3, HIGH);
        digitalWrite(2, HIGH);
        digitalWrite(5, HIGH);
        Serial.println(number);
        break;
        case 8:
        digitalWrite(3, HIGH);
        digitalWrite(2, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(7, HIGH);
        digitalWrite(9, HIGH);
        digitalWrite(10, HIGH);
        Serial.println(number);
        break;
        case 9:
        digitalWrite(3, HIGH);
        digitalWrite(2, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(9, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(10, HIGH);
        Serial.println(number);
        break;
    }
}