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+/*
+  E24C1024.cpp
+  AT24C1024 Library for Arduino 
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  US
+
+  This library is based on several projects:
+ 
+  The Arduino EEPROM library found here:  
+  http://arduino.cc/en/Reference/EEPROM
+
+  The 24C256 library found here:
+  http://www.arduino.cc/playground/Code/I2CEEPROM
+
+  The 24C512 library found here:
+  http://www.arduino.cc/playground/Code/I2CEEPROM24LC512
+  
+  Our project page is here:
+  http://www.arduino.cc/playground/Code/I2CEEPROM24C1024
+  
+  From the datasheet:
+
+  The AT24C1024B provides 1,048,576 bits of serial electrically 
+  erasable and programmable read only memory (EEPROM) organized 
+  as 131,072 words of 8 bits each. The device’s cascadable 
+  feature allows up to four devices to share a common two-wire 
+  bus.
+  
+  http://www.atmel.com/dyn/resources/prod_documents/doc5194.pdf
+  
+*/
+
+// Note: This is written for Arduino versions before 1.0. If you are using Arduino 1.0 and above
+// then you need to change Wire.Send to Wire.write and Wire.receive to Wire.read
+
+#if defined(ARDUINO) && ARDUINO >= 100
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+#include <Wire.h>
+#include "E24C1024.h"
+
+E24C1024::E24C1024(void)
+{
+   Wire.begin();
+}
+
+void E24C1024::write(unsigned long dataAddress, uint8_t data)
+{
+   Wire.beginTransmission((uint8_t)((0x500000 | dataAddress) >> 16)); // B1010xxx
+   Wire.write((uint8_t)((dataAddress & WORD_MASK) >> 8)); // MSB
+   Wire.write((uint8_t)(dataAddress & 0xFF)); // LSB
+   Wire.write(data);
+   Wire.endTransmission();
+   delay(5);
+}
+
+uint8_t E24C1024::read(unsigned long dataAddress)
+{
+   uint8_t data = 0x00;
+   Wire.beginTransmission((uint8_t)((0x500000 | dataAddress) >> 16)); // B1010xxx
+   Wire.write((uint8_t)((dataAddress & WORD_MASK) >> 8)); // MSB
+   Wire.write((uint8_t)(dataAddress & 0xFF)); // LSB
+   Wire.endTransmission();
+   Wire.requestFrom(0x50,1);
+   if (Wire.available()) data = Wire.read();
+   return data;
+}
+
+E24C1024 EEPROM1024;
@@ -0,0 +1,68 @@
+#ifndef E24C1024_h
+#define E24C1024_h
+/*
+  E24C1024.h
+  AT24C1024 Library for Arduino 
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  US
+
+  This library is based on several projects:
+ 
+  The Arduino EEPROM library found here:  
+  http://arduino.cc/en/Reference/EEPROM
+
+  The 24C256 library found here:
+  http://www.arduino.cc/playground/Code/I2CEEPROM
+
+  The 24C512 library found here:
+  http://www.arduino.cc/playground/Code/I2CEEPROM24LC512
+
+  Our project page is here:
+  http://www.arduino.cc/playground/Code/I2CEEPROM24C1024
+  
+  From the datasheet:
+
+  The AT24C1024B provides 1,048,576 bits of serial electrically 
+  erasable and programmable read only memory (EEPROM) organized 
+  as 131,072 words of 8 bits each. The device’s cascadable 
+  feature allows up to four devices to share a common two-wire 
+  bus.
+  
+  http://www.atmel.com/dyn/resources/prod_documents/doc5194.pdf
+  
+*/
+
+
+#if defined(ARDUINO) && ARDUINO >= 100
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+#include <Wire.h>
+#define FULL_MASK 0x7FFFF
+#define DEVICE_MASK 0x7F0000
+#define WORD_MASK 0xFFFF
+class E24C1024
+{
+  public:
+    E24C1024();
+    static void write(unsigned long, uint8_t);
+    static uint8_t read(unsigned long);
+};
+
+extern E24C1024 EEPROM1024;
+
+#endif