/*
  74HC595 Shift Register Demonstration 1
  74hc595-demo.ino
  Count in Binary and display on 8 LEDs

  Modified from "Hello World" example by Carlyn Maw,Tom Igoe and David A. Mellis

  DroneBot Workshop 2020
  https://dronebotworkshop.com
*/

// Define Connections to 74HC595

/*int SER = 8;
  int LATCH = 9;
  int CLK = 10;
*/


// ST_CP pin 12
const int latchPin = 10;
// SH_CP pin 11
const int clockPin = 11;
// DS pin 14
const int dataPin = 12;
byte numberToDisplay = 0;
void setup ()
{
  // Setup pins as Outputs
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  Serial.begin(115200);
}

void loop() {
  int myLed = random(0, 8);
  numberToDisplay = 0;
  sendto595();
  delay(1000);
  Serial.println(myLed);
  bitSet(numberToDisplay, (myLed));
  sendto595();
  delay(1000);
}

void sendto595()
{
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, numberToDisplay);
  digitalWrite(latchPin, HIGH);
}
/*
  int SER = 12;
  int LATCH = 10;
  int CLK = 11;

  void setup()
  {
  pinMode(SER, OUTPUT);
  pinMode(LATCH, OUTPUT);
  pinMode(CLK, OUTPUT);
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(LATCH, LOW);
    shiftOut(SER, CLK, MSBFIRST, B10101010);
    digitalWrite(LATCH, HIGH);
    delay(500);
    digitalWrite(LATCH, LOW);
    shiftOut(SER, CLK, MSBFIRST, B01010101);
    digitalWrite(LATCH, HIGH);
    delay(500);
  }
  }
  void loop() {}*/