arduino Koffiemod

#include <ShiftLCD.h>


#define NUMBER_OF_SHIFT_CHIPS   1
#define DATA_WIDTH   NUMBER_OF_SHIFT_CHIPS * 8
#define PULSE_WIDTH_USEC   5
#define POLL_DELAY_MSEC   1
#define BYTES_VAL_T unsigned int


// initialize the library with the numbers of the interface pins
ShiftLCD lcd(2, 4, 3);
// id 2 data ic1
// id 3 IC pin 12, Clock, Storage Register Clock input ST_CP
// id 4 IC pin 11, Strobe, Clock input SH_CP

//Pin connected to latch pin (ST_CP) of 74HC595
const int latchPin = 3;
//Pin connected to clock pin (SH_CP) of 74HC595
const int clockPin = 4;
////Pin connected to Data in (DS) of 74HC595
const int dataPin = 5;
char inputString[2];

int ploadPin        = 7;  // Connects to Parallel load pin the 165
//int clockEnablePin  = 9;  // Connects to Clock Enable pin the 165
int inputdataPin         = 6; // Connects to the Q7 pin the 165
int inputclockPin        =8; // Connects to the Clock pin the 165

BYTES_VAL_T pinValues;
BYTES_VAL_T oldPinValues;

BYTES_VAL_T read_shift_regs()
{
    byte bitVal;
    BYTES_VAL_T bytesVal = 0;

    /* Trigger a parallel Load to latch the state of the data lines,
    */

    digitalWrite(ploadPin, LOW);
    delayMicroseconds(PULSE_WIDTH_USEC);
    digitalWrite(ploadPin, HIGH);

    /* Loop to read each bit value from the serial out line
     * of the SN74HC165N.
    */
    for(int i = 0; i < DATA_WIDTH; i++)
    {
        bitVal = digitalRead(inputdataPin);

        /* Set the corresponding bit in bytesVal.
        */
        bytesVal |= (bitVal << ((DATA_WIDTH-1) - i));
        Serial.print(bytesVal, DEC);

          lcd.setCursor(0, 1);
  // print the number of seconds since reset:
          lcd.print(bytesVal, DEC);

        /* Pulse the Clock (rising edge shifts the next bit).
        */
        digitalWrite(inputclockPin, HIGH);
        delayMicroseconds(PULSE_WIDTH_USEC);
        digitalWrite(inputclockPin, LOW);
    }

    return(bytesVal);
}

/* Dump the list of zones along with their current status.
*/
void display_pin_values()
{
    Serial.print("Pin States:\r\n");

    for(int i = 0; i < DATA_WIDTH; i++)
    {
        Serial.print("  Pin-");
        Serial.print(i);
        Serial.print(": ");

        if((pinValues >> i) & 1)
            Serial.print("HIGH");

        else
            Serial.print("LOW");

        Serial.print("\r\n");
    }

    Serial.print("\r\n");
}


void setup() {
  // set up the LCD's number of rows and columns:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("ILZ-KOFFIE-01");
  pinMode(latchPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  Serial.begin(9600);
  Serial.println("reset");

  pinMode(ploadPin, OUTPUT);
    pinMode(inputdataPin, INPUT);
      pinMode(inputclockPin, OUTPUT);

    digitalWrite(ploadPin, HIGH);
    pinValues = read_shift_regs();
    display_pin_values();
    oldPinValues = pinValues;

}

void loop() {
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):


 // for (int numberToDisplay = 0; numberToDisplay < 256; numberToDisplay++) {
  digitalWrite(latchPin, LOW);

  int numberToDisplay  = 254;

  shiftOut(dataPin, clockPin, MSBFIRST, numberToDisplay);
     delay(200);

  digitalWrite(latchPin, HIGH);
       delay(200);
 // update();

pinValues = read_shift_regs();

    /* If there was a chage in state, display which ones changed.
    */
    if(pinValues != oldPinValues)
    {
        Serial.print("*Pin value change detected*\r\n");
        display_pin_values();
        oldPinValues = pinValues;
    }

    delay(POLL_DELAY_MSEC);
//  }
}

void update() {
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(millis()/1000);

}