#include "Arduino.h"
#include <SoftwareSerial.h>
#include <EEPROM.h>
SoftwareSerial HM10(2, 3);
char message = ""; 
String text = "";
String sendBack = "";



void writeStringToEEPROM(int addrOffset, const String &strToWrite)
{
  byte len = strToWrite.length();
  EEPROM.write(addrOffset, len);
  for (int i = 0; i < len; i++)
  {
    EEPROM.write(addrOffset + 1 + i, strToWrite[i]);
  }
}
String readStringFromEEPROM(int addrOffset)
{
  int newStrLen = EEPROM.read(addrOffset);
  char data[newStrLen + 1];
  for (int i = 0; i < newStrLen; i++)
  {
    data[i] = EEPROM.read(addrOffset + 1 + i);
  }
  data[newStrLen] = '\0'; // !!! NOTE !!! Remove the space between the slash "/" and "0" (I've added a space because otherwise there is a display bug)
  return String(data);
}

String texto;

void setup(){
  Serial.begin(115200);
  String retrievedString = readStringFromEEPROM(12);
  Serial.print("Startup:");
  Serial.println(retrievedString);
  HM10.begin(115200);

}
boolean wait;
void loop(){
int i;
//addressCharArray = EEPROM.getAddress(sizeof(char)*7);
String retrievedString = readStringFromEEPROM(12);
if(HM10.available()) {
  //text = HM10.readString();
  text = HM10.readString();
  Serial.println("Text Recevied from Android: ");
  Serial.println(text);

if (text == "GETMSG") {
  Serial.print("GETMSG received");
  Serial.print("MSG to send back:");
  Serial.print(retrievedString.c_str());
  HM10.print(retrievedString.c_str());
} else {
  Serial.print("Writting MSG:");
  Serial.print(text);
  writeStringToEEPROM(12, text);
  sendBack = "MSG Written";
  HM10.print(sendBack.c_str());
  
  }
}
}