/*
   EEPROM Read

   Reads the value of each byte of the EEPROM and prints it
   to the computer.
   This example code is in the public domain.
*/

#include <EEPROM.h>

// start reading from the first byte (address 0) of the EEPROM
int address = 0;
byte value;

void setup() {
  Serial.begin(115200);
}

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();

  /***
    Iterate through each byte of the EEPROM storage.

    Larger AVR processors have larger EEPROM sizes, E.g:
    tinyAVR 0/1/2-series 2k flash:      64b
    tinyAVR 0/1/2-series 4-8k flash:    128b
    tinyAVR 0/1/2-series 16-32k flash:  256b
    megaAVR 0-series:                   256b (all flash sizes)
    DA, DB, EA-series:                  512b (all flash sizes)
    DD-series:                          256b (all flash sizes)

    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);
}