#define DATA_PIN 8
#define LATCH_PIN 9
#define CLOCK_PIN 10

int8_t output = 0;
uint16_t speedDelay = 20;

int8_t val[4] = {10, 6, 5, 9};//1010 0110 0101 1001

uint16_t count = 0;



void cwSeq() {
  for (int8_t i = 0; i < 4; i ++) {
    count ++;
    output = val[i];
    updateShiftRegister();
    if (count < 5) goPrint();
    delay(speedDelay);
    
  }
}

void ccwSeq() {
  for (int8_t i = 3; i >= 0; i --) {
    count --;
    output = val[i];
    updateShiftRegister();
    if (count > 195) goPrint();
    delay(speedDelay);
    
  }
}

void updateShiftRegister() {
  digitalWrite(LATCH_PIN, LOW);
  shiftOut(DATA_PIN, CLOCK_PIN, MSBFIRST, output);
  digitalWrite(LATCH_PIN, HIGH);
}

void goPrint() {
  Serial.print(output);
  if (output > 9) Serial.print(" ");
  else Serial.print("  ");
  for (int8_t bit = 3; bit >= 0; bit--) {
    Serial.print(bitRead(output, bit));
  }
  Serial.println();
}

void setup() {
  
  Serial.begin(115200);
  Serial.println("Hello");
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);

}

void loop() {
 
  for (int16_t i = 0; i < 50; i ++) {//50 loops x 4 steps = 200
    cwSeq();
  }
  Serial.println(count);
  delay(1000);
  for (int16_t i = 0; i < 50; i ++) {
    ccwSeq();
  }
  Serial.println(count);
  delay(1000);
  
}