const int clockEnable = 2;
const int dataIn = 3;
const int clock = 4;
const int load = 5;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("SETUP STARTED");
  pinMode(clockEnable, OUTPUT);
  pinMode(dataIn, INPUT);
  pinMode(clock, OUTPUT);
  pinMode(load, OUTPUT);
  Serial.println("SETUP OVER");
}

void loop() {
  // put your main code here, to run repeatedly:
  byte input = getInput();
  printInput(input);
}

byte getInput() {
  digitalPulse(load, 5);
  digitalWrite(clock, HIGH);
  digitalWrite(clockEnable, LOW);
  byte input = shiftIn(dataIn, clock, LSBFIRST);
  digitalWrite(clockEnable, HIGH);
  return input;
}

void digitalPulse(int pin, int microseconds) {
  digitalWrite(pin, LOW);
  delayMicroseconds(microseconds);
  digitalWrite(pin, HIGH);
  delayMicroseconds(microseconds);
}

void printInput(byte input) {
  Serial.print("INPUT : ");
  Serial.println(input, BIN);
  Serial.println();
  delay(200);
}