#include <EEPROM.h>
 
// start reading from the first byte (address 0) of the EEPROM
int address = 0;
byte value;
 
void setup() {
  // initialize serial and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }
}
 
void loop() {
  // read a byte from the current address of the EEPROM
  value = EEPROM.read(address);
 
  Serial.print(address);
  Serial.print("\t");
  Serial.print(value, DEC);
  Serial.println();
 
  /***
    Advance to the next address, when at the end restart at the beginning.
 
    Larger AVR processors have larger EEPROM sizes, E.g:
    - Arduno Duemilanove: 512b EEPROM storage.
    - Arduino Uno:        1kb EEPROM storage.
    - Arduino Mega:       4kb EEPROM storage.
 
    Rather than hard-coding the length, you should use the pre-provided length function.
    This will make your code portable to all AVR processors.
  ***/
  address = address + 1;
  if (address == EEPROM.length()) {
    address = 0;
  }
 
  /***
    As the EEPROM sizes are powers of two, wrapping (preventing overflow) of an
    EEPROM address is also doable by a bitwise and of the length - 1.
 
    ++address &= EEPROM.length() - 1;
  ***/
 
  delay(500);
}