Description:

Shift registers electronic components that allow you to get more outputs than you have pins. Technically they convert series to parallel data. What this translates to is you can send a series of bits, 0's and 1's, to the shift register and it will break each of those bits to its own output. The 0's are seen as off and the 1's are seen as on. LEDs are usually used to show the ON/OFF state of each shift register output. We will used this information to make some cool light patterns on the LED's powered by the Arduino Uno.

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Code 1:

void setup(){
	//your code here
}
void loop(){
	//your code here
}

Code 2:

void setup(){
  //your code here
  pinMode(13, OUTPUT);
}
void loop(){
  //your code here
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, HIGH);
  delay(1000);
}