EEPROMduino v1

/* ------------------------------ EEPROMduino.cpp ------------------------------ */
#include "EEPROMduino.h"

EEPROMduino::EEPROMduino(uint8_t _a0, uint8_t _a1, uint8_t _a2)
{
    a0 = _a0;
    a1 = _a1;
    a2 = _a2;
    EEPROM_address = buildAddress(_a0, _a1, _a2);
    Wire.begin(EEPROM_address);

}


void EEPROMduino::write(unsigned int address, byte data)
{
    Wire.beginTransmission(EEPROM_address);
    Wire.write((byte)address);
    Wire.write(data);
    Wire.endTransmission();
}

byte EEPROMduino::read(unsigned int address)
{
    byte data = 0xFF;
    Wire.beginTransmission(EEPROM_address);
    Wire.write((byte)address);
    Wire.endTransmission();

    Wire.requestFrom(EEPROM_address, (byte)0x1);
    if(Wire.available())
    {
        data = Wire.read();
    }
    return data;
}

/* ------------------------------ EEPROMduino.h ------------------------------ */

#ifndef _EEPROMduino_H_
#define _EEPROMduino_H_

#include <Wire.h>
#include <Arduino.h>

typedef unsigned char uint8_t ;
typedef uint8_t byte;

#define buildAddress(a0, a1, a2) (0b1010000 | (a2<<2) | (a1<<1) | (a0))

class EEPROMduino
{
public:
    EEPROMduino(uint8_t _a0, uint8_t _a1, uint8_t _a2);
    void write(unsigned int address, byte data);
    byte read(unsigned int address);
private:
    uint8_t a0, a1, a2;
    uint8_t EEPROM_address;
};

#endif


/* ------------------------------ SAMPLE CODE ------------------------------ */

#include <Wire.h>

#include "EEPROMduino.h"

EEPROMduino ee(1, 1, 1);

void setup()
{
    Serial.begin(9600);
    Serial.println("Inited.");
    ee.write(2, 0x89);
    delay(100);
    Serial.print(ee.read(2), HEX);
}

void loop()
{
}