#include <UUID.h>
#include <EEPROM.h>
uint32_t start, stop, randomtime;




void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  UUID uuid;
  char uuid_w[0] = {};
  char uuid_r[0] = {};
  
  
  uuid.generate();
  strcpy(uuid_w,uuid.toCharArray());

  // write uuid_w into EEPROM 0 to 35
  for (int i = 0; i <= 35; i++){
    EEPROM.write(i,uuid_w[i]);
  }
  Serial.println("");

  String str_uuid_r = "";
  // read EEPROM 0 to 35 into uuid_r
  for (int i = 0; i <= 35; i++){
    str_uuid_r.concat((char)EEPROM.read(i));
  }
  Serial.println(str_uuid_r);
  Serial.println("-----------------------------");

  String str_did_w="abcde";
  String str_did_r ="";
  int str_len = str_did_w.length() + 1; 
  char did_w[str_len];
  str_did_w.toCharArray(did_w,str_len);

  // write str did into EEPROM 36 to 40
  for (int i=0;i<5;i++){
    int j = i + 36;
    EEPROM.write(j,str_did_w[i]);
    }


    // read EEPROM 36 to 40 into did_r
  for (int i = 36; i <= 40; i++){
    int j = i-36;
    str_did_r.concat((char)EEPROM.read(i));
  }

  Serial.println(str_did_r);
  Serial.println("-----------------------------"); 
}

void loop() {
  // put your main code here, to run repeatedly:

}