having a little trouble please help

system · July 30, 2011, 7:04pm

I'm trying to make an up down counter it counts up each time you press one button and i want it to count down when you press the other. i have it counting up but don't know what to do to get it to count down ? hope someone can help

here is my code

int a=2;
int b=3;
int c=4;
int d=5;
int e=6;
int f=7;
int g=8;
int number=0;
int pin9=9;
int pin10=10;
int pin12=12;
int tens=0;
int unit=0;
int digit=0;
int tens1=0;
int presentvalue=0;
int previousvalue=0;


// Pins for A B C D E F G, in sequence
const int segs[7] = { 2, 3, 4, 5, 6, 7, 8, };

// Segments that make each number
const byte numbers[10] = { 0b1000000, 0b1111001, 0b0100100, 0b0110000, 0b0011001, 0b0010010,
0b0000010, 0b1111000, 0b0000000, 0b0010000 };

void setup()
{
//Serial.begin(9600);
pinMode(a,OUTPUT);
pinMode(b,OUTPUT);
pinMode(c,OUTPUT);
pinMode(d,OUTPUT);
pinMode(e,OUTPUT);
pinMode(f,OUTPUT);
pinMode(g,OUTPUT);
pinMode(pin9,OUTPUT);
pinMode(pin10,OUTPUT);
pinMode(pin12,INPUT);
zero();
}

void loop()
{
presentvalue=digitalRead(pin12);
if (presentvalue!=previousvalue)
{
if (presentvalue==1)
{number=number+1;}
previousvalue=presentvalue;
}
display1();
}

void display1()
{
tens1=number%100;
tens=tens1/10;
unit=tens1%10;
for (int i=0;i<=10;i++)
{
  
  digit=tens;
  digitselection();  
  digitalWrite(pin9,HIGH);
  digitalWrite(pin10,LOW);
  delay(1);
  
  digit=unit;
  digitselection();  
  digitalWrite(pin9,LOW);
  digitalWrite(pin10,HIGH);
  delay(1);
}
if (number>99) {number=0;}
}



void zero()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,HIGH);
}

void one()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void two()
{
digitalWrite(c,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}

void three()
{
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void four()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void five()
{
digitalWrite(e,HIGH);
digitalWrite(b,HIGH);
digitalWrite(a,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void six()
{
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
}

void seven()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void eight()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void nine()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void digitselection()
{
  switch (digit)
  {
    case 0: 
    zero();
    break;
    case 1: 
    one();
    break;
    case 2: 
    two();
    break;
    case 3: 
    three();
    break;
    case 4: 
    four();
    break;
    case 5: 
    five();
    break;
    case 6: 
    six();
    break;
    case 7: 
    seven();
    break;
    case 8: 
    eight();
    break;
    case 9: 
    nine();
    break;
  }  
}

robtillaart · July 30, 2011, 8:01pm

please modify your post, select the code and press the # button .. makes the code look better , thank you.

Grumpy_Mike · July 30, 2011, 8:15pm

You need to repeat the code in this section:-

presentvalue=digitalRead(pin12);
if (presentvalue!=previousvalue)
{
if (presentvalue==1)
{number=number+1;}
previousvalue=presentvalue;
}

Using different variables to handle the down button, changing of course
{number=number+1;}
to
{number=number-1;}

robtillaart · July 30, 2011, 8:17pm

First have a look at arrays, it can make your code much shorter !!

add pin11 in input mode (you know how to do this, please use meaningfull names like up and DOWN
add int step = 1; (you know how to do this)
change loop.

void loop()
{
  // READ INPUT
  if (digitalRead(pinDown) == LOW) step = -1;
  if (digitalRead(pinUp) == LOW) step = +1;
  
  // ADJUST NUMBER
  number += step;
  number = constrain(number, 0, 100);  // optional

  // DISPLAY IT
  display1();
}

robtillaart · July 30, 2011, 8:26pm

wrt the array's

int a=2;
int b=3;
int c=4;
int d=5;
int e=6;
int f=7;
int g=8;

could be 

int segment[7] = {2,3,4,5,6,7,8 };

and that allows you todo

 for (byte i=0; i< 7; i++) pinMode(segment[i]. OUTPUT);

and it can change

void zero()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,HIGH);
}
...

void nine()
{
..
}

to a single function:

void digit(int nr)
{
  for (byte i=0; i<7; i++) 
  {
    digitalWrite(segment[i], bitRead(numbers[nr], i);
  }
}

call to zero() should be replaced by a call to digit(0); etc

Success,
Rob

robtillaart · July 30, 2011, 8:29pm

In a modded version you can change

 // READ INPUT
  if (digitalRead(pinDown) == LOW) step = -1;
  if (digitalRead(pinUp) == LOW) step = +1;

into

 // READ INPUT
  if (digitalRead(pinDown) == LOW) step--;
  if (digitalRead(pinUp) == LOW) step++;

This makes the counting faster and slower, upper and downer

system · July 30, 2011, 9:13pm

now i'm getting several errors what did i do wrong?

error: 'step' was not declared in this scope?

new code

int a=2;
int b=3;
int c=4;
int d=5;
int e=6;
int f=7;
int g=8;
int number=0;
int pin9=9;
int pin10=10;
int pinUp=11;
int pinDown=12;
int tens=0;
int unit=0;
int digit=0;
int tens1=0;
int increment=1;


// Pins for A B C D E F G, in sequence
const int segs[7] = { 2, 3, 4, 5, 6, 7, 8, };

// Segments that make each number
const byte numbers[10] = { 0b1000000, 0b1111001, 0b0100100, 0b0110000, 0b0011001, 0b0010010,
0b0000010, 0b1111000, 0b0000000, 0b0010000 };

void setup()
{
//Serial.begin(9600);
pinMode(a,OUTPUT);
pinMode(b,OUTPUT);
pinMode(c,OUTPUT);
pinMode(d,OUTPUT);
pinMode(e,OUTPUT);
pinMode(f,OUTPUT);
pinMode(g,OUTPUT);
pinMode(pin9,OUTPUT);
pinMode(pin10,OUTPUT);
pinMode(pinUp,INPUT);
pinMode(pinDown,INPUT);
zero();
}

void loop()
{
  //READ INPUT
  if (digitalRead(pinDown)== LOW) step =-1;
  if (digitalRead(pinUp) == LOW) step =1
  
  //ADJUST NUMBER
  number += step;
  number = consteian(number, 0 , 100);  //

void display1()
{
tens1=number%100;
tens=tens1/10;
unit=tens1%10;
for (int i=0;i<=10;i++)
{
  
  digit=tens;
  digitselection();  
  digitalWrite(pin9,HIGH);
  digitalWrite(pin10,LOW);
  delay(1);
  
  digit=unit;
  digitselection();  
  digitalWrite(pin9,LOW);
  digitalWrite(pin10,HIGH);
  delay(1);
}
if (number>99) {number=0;}
}



void zero()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,HIGH);
}

void one()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void two()
{
digitalWrite(c,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}

void three()
{
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void four()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void five()
{
digitalWrite(e,HIGH);
digitalWrite(b,HIGH);
digitalWrite(a,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void six()
{
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
}

void seven()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void eight()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void nine()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void digitselection()
{
  switch (digit)
  {
    case 0: 
    zero();
    break;
    case 1: 
    one();
    break;
    case 2: 
    two();
    break;
    case 3: 
    three();
    break;
    case 4: 
    four();
    break;
    case 5: 
    five();
    break;
    case 6: 
    six();
    break;
    case 7: 
    seven();
    break;
    case 8: 
    eight();
    break;
    case 9: 
    nine();
    break;
  }  
}

Grumpy_Mike · July 30, 2011, 9:20pm

Read the compile errors and correct them:-

step appears to be a reserved word use mystep instead and define it as an int at the start.
Check for missing ; for the next error in the line above
what is this:- number = consteian(number, 0 , 100); there is no function called consteian
You missed a } after this call

Then it compiles.

system · July 30, 2011, 9:28pm

that was constrain not constreian mybad
after your fixes im getting 3 errors at void display1() {

cpp; in function 'void loop()':
63;error; a function-defintion is not allowed here before '{' token
232; error; expected '}' at end of input
?? thanks

heres the code if you need it

int a=2;
int b=3;
int c=4;
int d=5;
int e=6;
int f=7;
int g=8;
int number=0;
int pin9=9;
int pin10=10;
int pinUp=11;
int pinDown=12;
int tens=0;
int unit=0;
int digit=0;
int tens1=0;
int increment=1;
int mystep=0;


// Pins for A B C D E F G, in sequence
const int segs[7] = { 2, 3, 4, 5, 6, 7, 8, };

// Segments that make each number
const byte numbers[10] = { 0b1000000, 0b1111001, 0b0100100, 0b0110000, 0b0011001, 0b0010010,
0b0000010, 0b1111000, 0b0000000, 0b0010000 };

void setup()
{
//Serial.begin(9600);
pinMode(a,OUTPUT);
pinMode(b,OUTPUT);
pinMode(c,OUTPUT);
pinMode(d,OUTPUT);
pinMode(e,OUTPUT);
pinMode(f,OUTPUT);
pinMode(g,OUTPUT);
pinMode(pin9,OUTPUT);
pinMode(pin10,OUTPUT);
pinMode(pinUp,INPUT);
pinMode(pinDown,INPUT);
zero();
}

void loop()
{
  //READ INPUT
  if (digitalRead(pinDown) == LOW) mystep = -1;
  if (digitalRead(pinUp) == LOW) mystep = +1;
  
  //ADJUST NUMBER
  number += mystep;
  number = constrain(number, 0 , 100);  //
  
 {
   
  
  // DISPLAY IT
  display1();
} 
  

void display1()
{
tens1=number%100;
tens=tens1/10;
unit=tens1%10;
for (int i=0;i<=10;i++)
{
  
  digit=tens;
  digitselection();  
  digitalWrite(pin9,HIGH);
  digitalWrite(pin10,LOW);
  delay(1);
  
  digit=unit;
  digitselection();  
  digitalWrite(pin9,LOW);
  digitalWrite(pin10,HIGH);
  delay(1);
}
if (number>99) {number=0;}
}



void zero()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,HIGH);
}

void one()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void two()
{
digitalWrite(c,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}

void three()
{
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void four()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void five()
{
digitalWrite(e,HIGH);
digitalWrite(b,HIGH);
digitalWrite(a,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void six()
{
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
}

void seven()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void eight()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void nine()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void digitselection()
{
  switch (digit)
  {
    case 0: 
    zero();
    break;
    case 1: 
    one();
    break;
    case 2: 
    two();
    break;
    case 3: 
    three();
    break;
    case 4: 
    four();
    break;
    case 5: 
    five();
    break;
    case 6: 
    six();
    break;
    case 7: 
    seven();
    break;
    case 8: 
    eight();
    break;
    case 9: 
    nine();
    break;
  }  
}

robtillaart · July 30, 2011, 9:36pm

add 1) step is auto-highlighted but you can use it if you declare it. But increment might be a better name

add 3) number = consteian(number, 0 , 100); ==> number = constrain(number, 0 , 100);

robtillaart · July 30, 2011, 9:38pm

#brackets in loop is incorrect check this one...

void loop()
{
  //READ INPUT
  if (digitalRead(pinDown) == LOW) mystep = -1;
  if (digitalRead(pinUp) == LOW) mystep = +1;
  
  //ADJUST NUMBER
  number += mystep;
  number = constrain(number, 0 , 100);  //
  
  // DISPLAY IT
  display1();
}

system · July 30, 2011, 9:42pm

it doesnt count up or down when i press the button it jst runs?

i wanted it so everytime i press the up button it counts up & the down button it counts down not continously

Grumpy_Mike · July 30, 2011, 9:58pm

How are the buttons wired up? Do you need to enable the internal pull ups?

That code will count very fast until it hits the limit, in fact it will count even when the buttons are not pressed, all the presses are doing are changing the direction of the count.

Why did you not do what I said earlier?

system · July 30, 2011, 10:05pm

if you are talking about shorting the code? its because i want to get this straightened out first. if thats what your talking about

the buttons are wired like this the input wire for pins 11 &12 both go to there own 10k resistor & 1 side of the switch then the other side of the resistor goes to gnd
the code i put at the beginning of this post counted up everytime i hit the button & all i wanted to know was how to add another button to count down everytime i hit it not for it to continuously count

robtillaart · July 30, 2011, 10:10pm

void loop()
{
  mystep = 0;  // don't count if no butt on pressed
  //READ INPUT
  if (digitalRead(pinDown) == LOW) mystep = -1;
  if (digitalRead(pinUp) == LOW) mystep = +1;
  
  //ADJUST NUMBER
  number += mystep;
  number = constrain(number, 0 , 100);  //
  
  // DISPLAY IT
  display1();
}

system · July 30, 2011, 10:15pm

ok that works one more think though how would i get it to not bounce (go one at a time each way) ?

Grumpy_Mike · July 30, 2011, 10:20pm

No look at my reply, the bit about remembering the previous state of the button and only incrementing or decrementing when the state changes from unpressed to pressed.
To debounce just add a delay after you detect a change.

system · August 2, 2011, 12:57am

if i put a delay after the change it make the two displays kinda pulse what else can i do so it does not bounce?
thanks again for your help

Grumpy_Mike · August 2, 2011, 11:13am

if i put a delay after the change it make the two displays kinda pulse

Yes that is because you are not REMEMBERING the state of the buttons from one loop to the next. It is not bounce you are seeing but the fact that you have inadequacy code.
Post what you have so far.

system · August 2, 2011, 7:45pm

it does bounce though. with no delay add and with one add it pulses!

heres what i got.

int a=2;
int b=3;
int c=4;
int d=5;
int e=6;
int f=7;
int g=8;
int number=0;
int pin9=9;
int pin10=10;
int pindown=11;
int pinup=12;
int tens=0;
int unit=0;
int digit=0;
int tens1=0;
int presentvalue=0;
int previousvalue=0;


// Pins for A B C D E F G, in sequence
const int segs[7] = { 2, 3, 4, 5, 6, 7, 8, };

// Segments that make each number
const byte numbers[10] = { 0b1000000, 0b1111001, 0b0100100, 0b0110000, 0b0011001, 0b0010010,
0b0000010, 0b1111000, 0b0000000, 0b0010000 };

void setup()
{
//Serial.begin(9600);
pinMode(a,OUTPUT);
pinMode(b,OUTPUT);
pinMode(c,OUTPUT);
pinMode(d,OUTPUT);
pinMode(e,OUTPUT);
pinMode(f,OUTPUT);
pinMode(g,OUTPUT);
pinMode(pin9,OUTPUT);
pinMode(pin10,OUTPUT);
pinMode(pindown,INPUT);
pinMode(pinup,INPUT);
zero();
}

void loop()
{
presentvalue=digitalRead(pinup);
if (presentvalue!=previousvalue)
{
if (presentvalue==1)
{number=number+1;}
previousvalue=presentvalue;
}

presentvalue=digitalRead(pindown);
if (presentvalue!=previousvalue)
{
if (presentvalue==1)
{number=number-1;}
previousvalue=presentvalue;

}
display1();
}
void display1()
{
tens1=number%100;
tens=tens1/10;
unit=tens1%10;
for (int i=0;i<=10;i++)
{
  
  digit=tens;
  digitselection();  
  digitalWrite(pin9,HIGH);
  digitalWrite(pin10,LOW);
  delay(1);
  
  digit=unit;
  digitselection();  
  digitalWrite(pin9,LOW);
  digitalWrite(pin10,HIGH);
  delay(1);
}
if (number>99) {number=0;}
}



void zero()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,HIGH);
}

void one()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void two()
{
digitalWrite(c,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}

void three()
{
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void four()
{
digitalWrite(a,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void five()
{
digitalWrite(e,HIGH);
digitalWrite(b,HIGH);
digitalWrite(a,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
}

void six()
{
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
}

void seven()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
}

void eight()
{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void nine()
{
digitalWrite(d,HIGH);
digitalWrite(e,HIGH);
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
}

void digitselection()
{
  switch (digit)
  {
    case 0: 
    zero();
    break;
    case 1: 
    one();
    break;
    case 2: 
    two();
    break;
    case 3: 
    three();
    break;
    case 4: 
    four();
    break;
    case 5: 
    five();
    break;
    case 6: 
    six();
    break;
    case 7: 
    seven();
    break;
    case 8: 
    eight();
    break;
    case 9: 
    nine();
    break;
  }  
}

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