#include <SPI.h>

int latchpin = 10;
int datapin = 11;
int clockpin = 13;

byte data = 0;
char name[] = "Nathanael";
void setup() {
  Serial.begin(9600);
  SPI.begin();                              
  SPI.setBitOrder(LSBFIRST);               
  
  pinMode(latchpin, OUTPUT);
  pinMode(datapin, OUTPUT);
  pinMode(clockpin, OUTPUT);

  delay(500);
}

void loop() {
  data = 255;
  sendData(data);
  data = 0;
  sendData(data);


  for(int i = 0; i < 9; i++){
    switch(name[i]){
      case 'N':
        data = 78;
        sendData(data);
        break;
      case 'a':
        data = 97;
        sendData(data);
        break;
      case 't':
        data = 116;
        sendData(data);
        break;
      case 'h':
        data = 104;
        sendData(data);
        break;
      case 'n':
        data = 110;
        sendData(data);
        break;
      case 'e':
        data = 101;
        sendData(data);
        break;
      case 'l':
        data = 108;
        sendData(data);
        break;
    }
  }
}

void sendData(byte data){
  digitalWrite(latchpin, LOW);            
  SPI.transfer(data);                     
  digitalWrite(latchpin, HIGH);           
  delay(2000);
}