// https://www.youtube.com/watch?v=3JDgL9rgVb0&list=PLGs0VKk2DiYw-L-RibttcvK-WBZm8WLEP&index=44

#include <Arduino.h>

int latchPin = 11;
int clockPin = 9;
int dataPin = 12;

int dt = 3000;
byte ledByte = 0b10000000;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledByte);
  digitalWrite(latchPin, HIGH);

  Serial.println(ledByte, BIN);
  delay(dt);

  ledByte = ledByte / 2; // Shift right
  // ledByte = ledByte * 2; // Shift left
}