int stcp_pin = 4;
int shcp_pin = 3;
int ds_pin = 2;

int timer = 100;

void setup() {
  // put your setup code here, to run once:
  pinMode(stcp_pin, OUTPUT);
  pinMode(shcp_pin, OUTPUT);
  pinMode(ds_pin, OUTPUT);

}

void flow1() {
  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00000000);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00000001);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00000011);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00000111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00001111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00011111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B00111111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B01111111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, LSBFIRST, 0B11111111);
  digitalWrite(stcp_pin, 1);
  delay(timer);
} 

void flow2() {
  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00000000);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00000001);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00000011);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00000111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00001111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00011111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B00111111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B01111111);
  digitalWrite(stcp_pin, 1);
  delay(timer);

  digitalWrite(stcp_pin, 0);
  shiftOut(ds_pin, shcp_pin, MSBFIRST, 0B11111111);
  digitalWrite(stcp_pin, 1);
  delay(timer);
}


void loop() {
  // put your main code here, to run repeatedly:
  for(int number = 0; number < 256; number++) {
    digitalWrite(stcp_pin, 0);
    shiftOut(ds_pin, shcp_pin, LSBFIRST, number);
    digitalWrite(stcp_pin, 1);
    delay(100);
  }
  
  

}