#include "IdGuard.h"

#define DEVICE_ID 2

int ledPin = 13;

void setup() {

  // Optional offset to write ID in 4th byte from the end in EEPROM.
  // Defaults to 0, which means ID is stored in last byte in EEPROM.
  IdGuard.offset = 3;

  // Recommended, but optional led for error signalization.
  IdGuard.error_led_pin = ledPin;

  // Writes DEVICE_ID to EEPROM memory.
  // LED defined by error_led_pin blinks I and D letters in Morse code "..|-..".
  // Restarts device to prevent execution of any following code.
  // Comment out this line after ID is successfully stored in EEPROM.
  IdGuard.writeIdAndRestartDevice(DEVICE_ID);

  // Checks DEVICE_ID against last byte in EEPROM memory.
  // Blinks I and D in morse code "..|-.."and restarts device in case of
  // mismatch to prevent execution of any following code.
  IdGuard.forceId(DEVICE_ID);

  // Only reads ID from EEPROM.
  uint8_t device_id = IdGuard.readId();

}

void loop()
{
  // main loop will be never called in case of ID mismatch thanks to IdGuard
}