Arduino 8

#define FIR_START_PIN 4

#define SEC_START_PIN 8

#define BUTTON_PIN 3

int clicks = 0;

boolean buttonWasUp = true;

byte segments[10] = {

0b01111101, 0b00100100, 0b01111010, 0b01110110, 0b00100111,

0b01010111, 0b01011111, 0b01100100, 0b01111111, 0b01110111

};

void setup()

{

for(int i = 0; i < 3; i++)

pinMode(i + FIR_START_PIN, OUTPUT);

for(int i = 0; i < 3; i++)

pinMode(i + SEC_START_PIN, OUTPUT);

pinMode(BUTTON_PIN, INPUT_PULLUP);

}

void loop()

{

if (buttonWasUp && !digitalRead(BUTTON_PIN))

{

delay(10);

if (!digitalRead(BUTTON_PIN))

{

clicks++;

if (clicks == 99)

clicks = 0;

}

}

buttonWasUp = digitalRead(BUTTON_PIN);

Print(clicks / 10, FIR_START_PIN);

Print(clicks % 10, SEC_START_PIN);

}

void Print(int num, int start)

{

digitalWrite(start + 1, LOW);

shiftOut(start + 2, start, LSBFIRST, segments[num]);

digitalWrite(start + 1, HIGH);

}