Arduino Basics - Recreate Predator Like Timer With A Single Digit 7 Segment Display

The Schematic

The Implementation

http://youtu.be/c3KD8xtHOTQ

The Code

Ridiculously verbose I know, I'll be making this and a standard alphanumeric set into a library after tweaking it a bit.

[sourcecode language="c"]
int a = 10;
int b = 9;
int c = 12;
int d = 8;
int e = 7;
int f = 5;
int g = 6;
int dp = 11;

void setup(){
Serial.begin(9600);
}
void clearLCD(){
digitalWrite(a,0);
digitalWrite(b,0);
digitalWrite(c,0);
digitalWrite(d,0);
digitalWrite(e,0);
digitalWrite(f,0);
digitalWrite(g,0);
digitalWrite(dp,0);
}
void displayA(){
digitalWrite(f,1);
digitalWrite(e,1);
digitalWrite(g,1);
}
void displayB(){
digitalWrite(a,1);
digitalWrite(f,1);
digitalWrite(e,1);
digitalWrite(d,1);
digitalWrite(g,1);
}
void displayC(){
digitalWrite(a,1);
digitalWrite(b,1);
digitalWrite(c,1);
digitalWrite(d,1);
}
void displayD(){
digitalWrite(a,1);
digitalWrite(f,1);
digitalWrite(e,1);
digitalWrite(d,1);
}
void displayE(){
digitalWrite(a,1);
digitalWrite(g,1);
digitalWrite(e,1);
digitalWrite(c,1);
digitalWrite(d,1);
}
void displayF(){
digitalWrite(a,1);
digitalWrite(g,1);
digitalWrite(c,1);
}
void displayG(){
digitalWrite(g,1);
digitalWrite(c,1);
}
void displayH(){
digitalWrite(b,1);
digitalWrite(c,1);
digitalWrite(g,1);
}
void displayI(){
digitalWrite(g,1);
}
void displayJ(){
digitalWrite(e,1);
digitalWrite(g,1);
digitalWrite(c,1);
digitalWrite(a,1);
}
void displayK(){
digitalWrite(a,1);
digitalWrite(b,1);
digitalWrite(d,1);
}
void displayL(){
digitalWrite(e,1);
digitalWrite(g,1);
}
void displayM(){
digitalWrite(f,1);
digitalWrite(g,1);
digitalWrite(b,1);
}
void displayN(){
digitalWrite(e,1);
digitalWrite(f,1);
digitalWrite(a,1);
digitalWrite(b,1);
}
void displayO(){
digitalWrite(f,1);
digitalWrite(e,1);
}
void displayP(){
digitalWrite(a,1);
digitalWrite(f,1);
digitalWrite(g,1);
digitalWrite(c,1);
}
void displayQ(){
digitalWrite(g,1);
digitalWrite(e,1);
digitalWrite(d,1);
digitalWrite(c,1);
digitalWrite(b,1);
}
void displayR(){
digitalWrite(a,1);
digitalWrite(f,1);
digitalWrite(e,1);
digitalWrite(g,1);
}
void displayS(){
digitalWrite(a,1);
digitalWrite(g,1);
digitalWrite(d,1);
}
void displayT(){
digitalWrite(f,1);
digitalWrite(a,1);
}
void displayU(){
digitalWrite(e,1);
digitalWrite(g,1);
digitalWrite(c,1);
}
void displayV(){
digitalWrite(e,1);
digitalWrite(d,1);
digitalWrite(c,1);
}
void displayW(){
digitalWrite(e,1);
digitalWrite(f,1);
digitalWrite(a,1);
digitalWrite(c,1);
digitalWrite(b,1);
}
void displayX(){
digitalWrite(f,1);
digitalWrite(b,1);
digitalWrite(g,1);
digitalWrite(e,1);
digitalWrite(c,1);
}
void displayY(){
digitalWrite(f,1);
digitalWrite(g,1);
digitalWrite(b,1);
digitalWrite(,1);
}
void displayZ(){
digitalWrite(a,1);
digitalWrite(b,1);
digitalWrite(g,1);
digitalWrite(e,1);
}

void loop(){
displayA();
delay(500);
clearLCD();

displayB();
delay(500);
clearLCD();

displayC();
delay(500);
clearLCD();

displayD();
delay(500);
clearLCD();

displayE();
delay(500);
clearLCD();

displayF();
delay(500);
clearLCD();

displayG();
delay(500);
clearLCD();

displayH();
delay(500);
clearLCD();

displayI();
delay(500);
clearLCD();

displayJ();
delay(500);
clearLCD();

displayK();
delay(500);
clearLCD();

displayL();
delay(500);
clearLCD();

displayM();
delay(500);
clearLCD();

displayN();
delay(500);
clearLCD();

displayO();
delay(500);
clearLCD();

displayP();
delay(500);
clearLCD();

displayQ();
delay(500);
clearLCD();

displayR();
delay(500);
clearLCD();

displayS();
delay(500);
clearLCD();

displayT();
delay(500);
clearLCD();

displayU();
delay(500);
clearLCD();

displayV();
delay(500);
clearLCD();

displayW();
delay(500);
clearLCD();

displayX();
delay(500);
clearLCD();

displayY();
delay(500);
clearLCD();

displayZ();
delay(500);
clearLCD();
}
[/sourcecode]