hi i am very new to this ( but having great fun 
) i am trying to blend to bit of code together to get a counter with 7 segment led display
this is were i have got to ...
I would like to know how to get the counter to display on the led up to 9 and then start again.
i can get the two bit to work but not together
i have use google but i am missing something
here is the code
int A = 7; //Defines all pins on the Arduino Uno board in order of connection.
int B = 6;
int C = 4; // DOT is pin 5, not used in this example.
int D = 3;
int E = 2;
int F = 8;
int G = 9;
byte num0 = 0x3F; //Hexadecimal format based upon the A-G, 0-9 Chart in excel and the wiring // of the segment (refer to the on/off table image below).
byte num1 = 0x6;
byte num2 = 0x5B;
byte num3 = 0x4F;
byte num4 = 0x66;
byte num5 = 0x6D;
byte num6 = 0x7C;
byte num7 = 0x7;
byte num8 = 0x7F;
byte num9 = 0x6F;
// this constant won't change:
const int buttonPin = 12; // the pin that the pushbutton is attached to
const int ledPin = 13; // the pin that the LED is attached to
// Variables will change:
int buttonPushCounter = 0; // counter for the number of button presses
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button
void on(byte num) // This function turns on the correct pins to display numbers passed to it // through the variable "num".
{
int result = bitRead(num, 0); // Read the first binary entry in num and stores it in result.
if (result == 1) // Check to see if this segment should be on.
{digitalWrite(A, HIGH);} // Turns on the segment.
else // Otherwise, it turns it off.
{digitalWrite(A, LOW);} // Turns segment off.
result = bitRead( num, 1); // Same thing for the 6 remaining segments.
if (result == 1)
{digitalWrite(B, HIGH);}
else
{digitalWrite(B, LOW);}
result = bitRead( num, 2);
if (result == 1)
{digitalWrite(C, HIGH);}
else
{digitalWrite(C, LOW);}
result = bitRead( num, 3);
if (result == 1)
{digitalWrite(D, HIGH);}
else
{digitalWrite(D, LOW);}
result = bitRead( num, 4);
if (result == 1)
{digitalWrite(E, HIGH);}
else
{digitalWrite(E, LOW);}
result = bitRead( num, 5);
if (result == 1)
{digitalWrite(F, HIGH);}
else
{digitalWrite(F, LOW);}
result = bitRead( num, 6);
if (result == 1)
{digitalWrite(G, HIGH);}
else
{digitalWrite(G, LOW);}
}
void setup() { // Our setup routine
pinMode(A, OUTPUT); // Making all pins outputs
pinMode(B, OUTPUT);
pinMode(C, OUTPUT);
pinMode(D, OUTPUT);
pinMode(E, OUTPUT);
pinMode(F, OUTPUT);
pinMode(G, OUTPUT);
pinMode(10,OUTPUT);
// initialize the button pin as a input:
pinMode(buttonPin, INPUT);
}
void loop() {
// read the pushbutton input pin:
buttonState = digitalRead(buttonPin);
// compare the buttonState to its previous state
if (buttonState != lastButtonState) {
// if the state has changed, increment the counter
if (buttonState == HIGH) {
// if the current state is HIGH then the button
// wend from off to on:
buttonPushCounter++;
on(num0 (buttonPushCounter));
}
else {
// if the current state is LOW then the button
// wend from on to off:
}
}
// save the current state as the last state,
//for next time through the loop
lastButtonState = buttonState;
// turns on the LED every four button pushes by
// checking the modulo of the button push counter.
// the modulo function gives you the remainder of
// the division of two numbers:
if (buttonPushCounter % 4 == 0) {
digitalWrite(ledPin, HIGH);
} else {
digitalWrite(ledPin, LOW);
}
}