//#include 
#include 

#define IOShieldEEPROMAddr  0x50

int ld4 = 74;

void setup() {

  char buf[26];
  char single;
  int i;

  pinMode(ld4, OUTPUT);     

  Serial.begin(9600);
  Serial.println("Serial Port 9600");

  Wire.begin();

  //Write the alphabet to the EEPROM
  //The data length is assumed in this example because the data
  //is a string. If you write an array numbers to EEPROM then the
  //length of the array must be provided.
  //IOShieldEEPROM.writeString(0,"ABCDEFGHIJKLMNOPQRSTUVWXYZ");
  //char new_string = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
  //uint8_t data = new_string.toInt();
  writeString(0,"ABCDEFGHIJKLMNOPQRSTUVWXYZ",strlen("ABCDEFGHIJKLMNOPQRSTUVWXYZ"));
  digitalWrite(ld4, HIGH);   // set the LED on
  delay(2000);

  //Read alphabet back and print to monitor
  //IOShieldEEPROM.readString(0, buf, 26);
  readString(0, buf, 26);
  Serial.print(buf);
  Serial.println();
  
  //Write a single character
  write(20,'@');
  
  //Read all characters back
  readString(0, buf, 26);
  Serial.print(buf);
  Serial.println();
  
  //Read back last letter
  single = read(20);
  Serial.print(single);
}

void loop() {
  Serial.println("hello");
  delay(5000);
}

uint8_t read(uint16_t address) {
	char temp;
	readString(address, &temp, 1);
	return temp;
}

void write(uint16_t address, char data) {
	writeString(address, &data, 1);
}

void readString(uint16_t address, char *sz, int size) {
  uint8_t temp[2] = {0,0};
  int index = 0;
  temp[0] = (address >> 8);
  temp[1] = (address & 0xFF);
	
  Wire.beginTransmission(IOShieldEEPROMAddr);
  Wire.send(temp, 2);
  Wire.endTransmission();
	
  Wire.requestFrom(IOShieldEEPROMAddr, size);
  while(Wire.available()) {
	sz[index++] = Wire.receive();
  }
  //twi_writeTo(IOShieldEEPROMAddr, temp, 2, 1);
  //twi_readFrom(IOShieldEEPROMAddr, sz, size);
}

void writeString(uint16_t address, char *data, int size) {
  int i;
  uint8_t temp[67] = {0,0,0};
  temp[0] = (address >> 8);
  temp[1] = (address & 0xFF);

  if(size > 64) {
    size = 64;
  }

  for(i=0; i