/*

#####################################################
||                                                 ||
||                Title: One by One                ||
||        Created by: Carlyn Maw, Tom Igoe         ||
||               Date: 25 Oct, 2006                ||
||               Adapted by: GC1CEO                ||
||                                                 ||
|| Sends one byte at the time which turns on 1 bit ||
||       at a time going from right to left.       ||
||                                                 ||
||                                                 ||
#####################################################

*/

//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;

void setup() {
Serial.begin(9600);
Serial.println("reset");
//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
Serial.println(); 
Serial.println(); 
Serial.println(); 
Serial.println(); 
Serial.println(); 
Serial.println(); 
Serial.println(); 
Serial.print("Program initalized!");
Serial.println(); 
}
void loop() {



// write to the shift register with the correct bit set high:


for(int x = 0;x < 8;x++){
registerWrite(x, HIGH);
delay(400);

}

}

// This method sends bits to the shift register:

void registerWrite(int whichPin, int whichState) {

// the bits you want to send

byte bitsToSend = 0;

// turn off the output so the pins don't light up

// while you're shifting bits:

digitalWrite(latchPin, LOW);

// turn on the next highest bit in bitsToSend:

bitWrite(bitsToSend, whichPin, whichState);

// shift the bits out:

shiftOut(dataPin, clockPin, MSBFIRST, bitsToSend);

// turn on the output so the LEDs can light up:

digitalWrite(latchPin, HIGH);

}