/*
  ##############################################
||                                          ||
||  Title: Integer Serial Read and Display  ||
||               Name: GC1CEO               ||
||             Date: 09/19/2024             ||
||                                          ||
||               Description:               ||
||                                          ||
|| Reads a number between 0 and 65,535 from ||
||serial and outputs it in binary code among||
||      2 shift registers and 16 LEDs.      ||
||                                          ||
##############################################

*/
//Pin connected to ST_CP (Storage Clock / Latch) of 74HC595
int latchPin = 8;
//Pin connected to SH_CP (Shift Clock) of 74HC595
int clockPin = 12;
////Pin connected to DS / SER (Data/Serial Input) of 74HC595
int dataPin = 11;
////Pin connected to inverted MR / SRCLR (Master Reset / Serial Register Clear) of 74HC595
int resetPin = 10;
////Pin connected to inverted OE (Output Enable) of 74HC595
int oePin = 9;

int incomingNum = 0;
String inputNum;

void setup() {
  Serial.begin(9600);

  //set pins to output so you can control the shift register and setting button and pot pins to INPUT
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  pinMode(resetPin, OUTPUT);
  pinMode(oePin, OUTPUT);


  // Setting reset to HIGH to stop reset and setting output enable to LOW to always enable output
  digitalWrite(resetPin, HIGH);
  digitalWrite(oePin, LOW);

  // Cleaning up serial monitor and announcing program has initalized and going to loop
  for (int a = 0; a < 25; a++) {
    Serial.println("");
  }
  Serial.println("Please enter a number (from 0 to 65535).");
}
void loop() {


  if (Serial.available() > 0) {
    inputNum = Serial.readString();
    incomingNum = inputNum.toInt();
  }

  digitalWrite(latchPin, LOW);


  shiftOut(dataPin, clockPin, MSBFIRST, (incomingNum >> 8));
  shiftOut(dataPin, clockPin, MSBFIRST, incomingNum);




  digitalWrite(latchPin, HIGH);
}