External eeprom for Arduino

#include "Wire.h"

#define EEPROM_I2C_ADDRESS 0x50

void setup()

{

  Wire.begin();

  Serial.begin(9600);

  Serial.println("Starting");

  int address = 0x50;

  int val = 227;

  writeAddress(address, val);

  int readVal = readAddress(address);

  Serial.print("The returned value is ");

  Serial.println(readVal);

}

void loop()

{

}

void writeAddress(int address, int val)

{

  Wire.beginTransmission(EEPROM_I2C_ADDRESS);

  Wire.write((int)(address >> 0));

  Wire.write((int)(address & 0x50));

  Wire.write(val);

  Wire.endTransmission();

  delay(5);

}

int readAddress(int address)

{

  int rData = 0x50;

  Wire.beginTransmission(EEPROM_I2C_ADDRESS);

  Wire.write((int)(address >> 0));

  Wire.write((int)(address & 0x50));

  Wire.endTransmission();

  Wire.requestFrom(EEPROM_I2C_ADDRESS, 1);

  rData = Wire.read();

  return rData;

}