int latchPin = 5;   // Latch pin of 74HC595 is connected to Digital pin 5

int clockPin = 6;   // Clock pin of 74HC595 is connected to Digital pin 6

int dataPin = 4;    // Data pin of 74HC595 is connected to Digital pin 4

​

byte leds = 0;      // Variable to hold the pattern of which LEDs are currently turned on or off

​

/*

 * setup() - this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup() 

{

  // Set all the pins of 74HC595 as OUTPUT

  pinMode(latchPin, OUTPUT);

  pinMode(dataPin, OUTPUT);  

  pinMode(clockPin, OUTPUT);

}

​

/*

 * loop() - this function runs over and over again

 */

void loop() 

{

  leds = 0; // Initially turns all the LEDs off, by giving the variable 'leds' the value 0

  updateShiftRegister();

  delay(500);

  for (int i = 0; i < 8; i++)   // Turn all the LEDs ON one by one.

  {

    bitSet(leds, i);        // Set the bit that controls that LED in the variable 'leds'

    updateShiftRegister();

    delay(500);

  }

}

​

/*

 * updateShiftRegister() - This function sets the latchPin to low, then calls the Arduino function 'shiftOut' to shift out contents of variable 'leds' in the shift register before putting the 'latchPin' high again.

 */

void updateShiftRegister()

{

   digitalWrite(latchPin, LOW);

   shiftOut(dataPin, clockPin, LSBFIRST, leds);

   digitalWrite(latchPin, HIGH);

}

int latchPin = 5;   // Latch pin of 74HC595 is connected to Digital pin 5

int clockPin = 6;   // Clock pin of 74HC595 is connected to Digital pin 6

int dataPin = 4;    // Data pin of 74HC595 is connected to Digital pin 4

​

byte leds = 0;      // Variable to hold the pattern of which LEDs are currently turned on or off

​

/*

 * setup() - this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup() 

{

  // Set all the pins of 74HC595 as OUTPUT

  pinMode(latchPin, OUTPUT);

  pinMode(dataPin, OUTPUT);  

  pinMode(clockPin, OUTPUT);

}

​

/*

 * loop() - this function runs over and over again

 */

void loop() 

{

  leds = 0; // Initially turns all the LEDs off, by giving the variable 'leds' the value 0

  updateShiftRegister();

  delay(500);

  for (int i = 0; i < 8; i++)   // Turn all the LEDs ON one by one.

  {

    bitSet(leds, i);        // Set the bit that controls that LED in the variable 'leds'

    updateShiftRegister();

    delay(500);

  }

}

​

/*

 * updateShiftRegister() - This function sets the latchPin to low, then calls the Arduino function 'shiftOut' to shift out contents of variable 'leds' in the shift register before putting the 'latchPin' high again.

 */

void updateShiftRegister()

{

   digitalWrite(latchPin, LOW);

   shiftOut(dataPin, clockPin, LSBFIRST, leds);

   digitalWrite(latchPin, HIGH);

}

int latchPin = 5;   // Latch pin of 74HC595 is connected to Digital pin 5

int clockPin = 6;   // Clock pin of 74HC595 is connected to Digital pin 6

int dataPin = 4;    // Data pin of 74HC595 is connected to Digital pin 4

​

byte leds = 0;      // Variable to hold the pattern of which LEDs are currently turned on or off

​

/*

 * setup() - this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup() 

{

  // Set all the pins of 74HC595 as OUTPUT

  pinMode(latchPin, OUTPUT);

  pinMode(dataPin, OUTPUT);  

  pinMode(clockPin, OUTPUT);

}

​

/*

 * loop() - this function runs over and over again

 */

void loop() 

{

  leds = 0; // Initially turns all the LEDs off, by giving the variable 'leds' the value 0

  updateShiftRegister();

  delay(500);

  for (int i = 0; i < 8; i++)   // Turn all the LEDs ON one by one.

  {

    bitSet(leds, i);        // Set the bit that controls that LED in the variable 'leds'

    updateShiftRegister();

    delay(500);

  }

}

​

/*

 * updateShiftRegister() - This function sets the latchPin to low, then calls the Arduino function 'shiftOut' to shift out contents of variable 'leds' in the shift register before putting the 'latchPin' high again.

 */

void updateShiftRegister()

{

   digitalWrite(latchPin, LOW);

   shiftOut(dataPin, clockPin, LSBFIRST, leds);

   digitalWrite(latchPin, HIGH);

}

int latchPin = 5;   // Latch pin of 74HC595 is connected to Digital pin 5

int clockPin = 6;   // Clock pin of 74HC595 is connected to Digital pin 6

int dataPin = 4;    // Data pin of 74HC595 is connected to Digital pin 4

​

byte leds = 0;      // Variable to hold the pattern of which LEDs are currently turned on or off

​

/*

 * setup() - this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup() 

{

  // Set all the pins of 74HC595 as OUTPUT

  pinMode(latchPin, OUTPUT);

  pinMode(dataPin, OUTPUT);  

  pinMode(clockPin, OUTPUT);

}

​

/*

 * loop() - this function runs over and over again

 */

void loop() 

{

  leds = 0; // Initially turns all the LEDs off, by giving the variable 'leds' the value 0

  updateShiftRegister();

  delay(500);

  for (int i = 0; i < 8; i++)   // Turn all the LEDs ON one by one.

  {

    bitSet(leds, i);        // Set the bit that controls that LED in the variable 'leds'

    updateShiftRegister();

    delay(500);

  }

}

​

/*

 * updateShiftRegister() - This function sets the latchPin to low, then calls the Arduino function 'shiftOut' to shift out contents of variable 'leds' in the shift register before putting the 'latchPin' high again.

 */

void updateShiftRegister()

{

   digitalWrite(latchPin, LOW);

   shiftOut(dataPin, clockPin, LSBFIRST, leds);

   digitalWrite(latchPin, HIGH);

}

int latchPin = 5;   // Latch pin of 74HC595 is connected to Digital pin 5

int clockPin = 6;   // Clock pin of 74HC595 is connected to Digital pin 6

int dataPin = 4;    // Data pin of 74HC595 is connected to Digital pin 4

​

byte leds = 0;      // Variable to hold the pattern of which LEDs are currently turned on or off

​

/*

 * setup() - this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup() 

{

  // Set all the pins of 74HC595 as OUTPUT

  pinMode(latchPin, OUTPUT);

  pinMode(dataPin, OUTPUT);  

  pinMode(clockPin, OUTPUT);

}

​

/*

 * loop() - this function runs over and over again

 */

void loop() 

{

  leds = 0; // Initially turns all the LEDs off, by giving the variable 'leds' the value 0

  updateShiftRegister();

  delay(500);

  for (int i = 0; i < 8; i++)   // Turn all the LEDs ON one by one.

  {

    bitSet(leds, i);        // Set the bit that controls that LED in the variable 'leds'

    updateShiftRegister();

    delay(500);

  }

}

​

/*

 * updateShiftRegister() - This function sets the latchPin to low, then calls the Arduino function 'shiftOut' to shift out contents of variable 'leds' in the shift register before putting the 'latchPin' high again.

 */

void updateShiftRegister()

{

   digitalWrite(latchPin, LOW);

   shiftOut(dataPin, clockPin, LSBFIRST, leds);

   digitalWrite(latchPin, HIGH);

}

int latchPin = 5;   // Latch pin of 74HC595 is connected to Digital pin 5

int clockPin = 6;   // Clock pin of 74HC595 is connected to Digital pin 6

int dataPin = 4;    // Data pin of 74HC595 is connected to Digital pin 4

​

byte leds = 0;      // Variable to hold the pattern of which LEDs are currently turned on or off

​

/*

 * setup() - this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup() 

{

  // Set all the pins of 74HC595 as OUTPUT

  pinMode(latchPin, OUTPUT);

  pinMode(dataPin, OUTPUT);  

  pinMode(clockPin, OUTPUT);

}

​

/*

 * loop() - this function runs over and over again

 */

void loop() 

{

  leds = 0; // Initially turns all the LEDs off, by giving the variable 'leds' the value 0

  updateShiftRegister();

  delay(500);

  for (int i = 0; i < 8; i++)   // Turn all the LEDs ON one by one.

  {

    bitSet(leds, i);        // Set the bit that controls that LED in the variable 'leds'

    updateShiftRegister();

    delay(500);

  }

}

​

/*

 * updateShiftRegister() - This function sets the latchPin to low, then calls the Arduino function 'shiftOut' to shift out contents of variable 'leds' in the shift register before putting the 'latchPin' high again.

 */

void updateShiftRegister()

{

   digitalWrite(latchPin, LOW);

   shiftOut(dataPin, clockPin, LSBFIRST, leds);

   digitalWrite(latchPin, HIGH);

}