/*Number Magic*/


int a=7; //definition digital 7  pins as pin to control 'a' section(segment)
int b=6; //definition digital 6  pins as pin to control 'b' section(segment)
int c=4; //definition digital 4  pins as pin to control 'c' section(segment)
int d=11;//definition digital 11 pins as pin to control 'd' section(segment)
int e=10;//definition digital 10 pins as pin to control 'e' section(segment)
int f=8; //definition digital 8  pins as pin to control 'f' section(segment)
int g=9; //definition digital 9  pins as pin to control 'g' section(segment)
int dp=5;//definition digital 5  pins as pin to control 'dp' section(segment)
void digital_0(void) //Segment display digital 0
{
 digitalWrite(a,HIGH);
 digitalWrite(b,HIGH);
 digitalWrite(c,HIGH);
 digitalWrite(d,HIGH);
 digitalWrite(e,HIGH);
 digitalWrite(f,HIGH);
 digitalWrite(g, LOW);
 digitalWrite(dp,LOW);
}
void digital_1(void) //Segment display digital 1
{
 digitalWrite(a,LOW);
 digitalWrite(b,HIGH);
 digitalWrite(c,HIGH);
 digitalWrite(d,LOW);
 digitalWrite(e,LOW);
 digitalWrite(f,LOW);
 digitalWrite(g,LOW);
 digitalWrite(dp,LOW);
}
void digital_2(void) //Segment display digital 2
{
 digitalWrite(a,HIGH);
 digitalWrite(b,HIGH);
 digitalWrite(c,LOW);
 digitalWrite(d,HIGH);
 digitalWrite(e,HIGH);
 digitalWrite(f,LOW);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}
void digital_3(void) //Segment display digital 3
{
 digitalWrite(a,HIGH);
 digitalWrite(b,HIGH);
 digitalWrite(c,HIGH);
 digitalWrite(d,HIGH);
 digitalWrite(e,LOW);
 digitalWrite(f,LOW);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}
void digital_4(void) //Segment display digital 4
{
 digitalWrite(a,LOW);
 digitalWrite(b,HIGH);
 digitalWrite(c,HIGH);
 digitalWrite(d,LOW);
 digitalWrite(e,LOW);
 digitalWrite(f,HIGH);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}


void digital_5(void) //Segment display digital 5
{
 digitalWrite(a,HIGH);
 digitalWrite(b,LOW);
 digitalWrite(c,HIGH);
 digitalWrite(d,HIGH);
 digitalWrite(e,LOW);
 digitalWrite(f,HIGH);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}
void digital_6(void) //Segment display digital 6
{
 digitalWrite(a,HIGH);
 digitalWrite(b,LOW); 
 digitalWrite(c,HIGH);
 digitalWrite(d,HIGH);
 digitalWrite(e,HIGH);
 digitalWrite(f,HIGH);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}
void digital_7(void) //Segment display digital 7
{
 digitalWrite(a,HIGH);
 digitalWrite(b,HIGH); 
 digitalWrite(c,HIGH); 
 digitalWrite(d,LOW);
 digitalWrite(e,LOW);
 digitalWrite(f,LOW);
 digitalWrite(g,LOW);
 digitalWrite(dp,LOW);
}
void digital_8(void) //Segment display digital 8
{
 digitalWrite(a,HIGH);
 digitalWrite(b,HIGH);
 digitalWrite(c,HIGH);
 digitalWrite(d,HIGH);
 digitalWrite(e,HIGH);
 digitalWrite(f,HIGH);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}
void digital_9(void) //Segment display digital 9
{
 digitalWrite(a,HIGH);
 digitalWrite(b,HIGH);
 digitalWrite(c,HIGH);
 digitalWrite(d,HIGH);
 digitalWrite(e,LOW);
 digitalWrite(f,HIGH);
 digitalWrite(g,HIGH);
 digitalWrite(dp,LOW);
}
void setup()
{
 int i;             //Define variables
 for(i=4;i<=11;i++)
 pinMode(i,OUTPUT); //Set up 4 ~ 11 pins to output mode
}
void loop()
{
 digital_0(); //Segment display digital 0
 delay(1000); //Delay 1s
 digital_1(); //Segment display digital 1
 delay(1000); //Delay 1s
 digital_2(); //Segment display digital 2
 delay(1000); //Delay 1s
 digital_3(); //Segment display digital 3
 delay(1000); //Delay 1s
 digital_4(); //Segment display digital 4
 delay(1000); //Delay 1s
 digital_5(); //Segment display digital 5
 delay(1000); //Delay 1s
 digital_6(); //Segment display digital 6
 delay(1000); //Delay 1s
 digital_7(); //Segment display digital 7
 delay(1000); //Delay 1s
 digital_8(); //Segment display digital 8
 delay(1000); //Delay 1s
 digital_9(); //Segment display digital 8
 delay(1000); //Delay 1s
}