int A = 4;
int B = 5;
int C = 6;
int D = 7;
int DP = 11;
int E = 8;
int F = 9;
int G = 10;

 

int switchUpPin = 2;
int switchDownPin = 3;
int counter = 0;
int buttonUpState = 0;
int lastButtonUpState = 0;
int buttonDownState = 0;
int lastButtonDownState = 0;

 

void setup()

{


 

pinMode(A, OUTPUT);

pinMode(B, OUTPUT);

pinMode(C, OUTPUT);

pinMode(D, OUTPUT);

pinMode(E, OUTPUT);

pinMode(F, OUTPUT);

pinMode(G, OUTPUT);

pinMode(DP, OUTPUT);

 

digitalWrite(DP ,HIGH);

}

 

void loop()

{

buttonUpState = digitalRead(switchUpPin);

buttonDownState = digitalRead(switchDownPin);

 

if (buttonUpState != lastButtonUpState)

{

if (buttonUpState == HIGH)

{

if(counter == 9)

{

counter = -1;

}

counter++;


 

 

if (buttonDownState != lastButtonDownState)

{

if (buttonDownState == HIGH)

{

if(counter == 0)

{

counter = 10;

}

counter–;


changeNumber(counter);

}

 

 

 

 

 

void changeNumber(int buttonPress)

{

switch (buttonPress)

{

//number 0

case 0:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, LOW);

digitalWrite(G, HIGH);

break;

//number 1

case 1:

digitalWrite(A, HIGH);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, HIGH);

digitalWrite(E, HIGH);

digitalWrite(F, HIGH);

digitalWrite(G, HIGH);

break;

//number 2

case 2:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, HIGH);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, HIGH);

digitalWrite(G, LOW);

break;

//number 3

case 3:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, HIGH);

digitalWrite(F, HIGH);

digitalWrite(G, LOW);

break;

//number 4

case 4:

digitalWrite(A, HIGH);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, HIGH);

digitalWrite(E, HIGH);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 5

case 5:

digitalWrite(A, LOW);

digitalWrite(B, HIGH);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, HIGH);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 6

case 6:

digitalWrite(A, LOW);

digitalWrite(B, HIGH);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 7

case 7:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, HIGH);

digitalWrite(E, HIGH);

digitalWrite(F, HIGH);

digitalWrite(G, HIGH);

break;

//number 8

case 8:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 9

case 9:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, HIGH);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

}

}