TinyGSM_Senseright/tools/FactoryReset/FactoryReset.ino

/**************************************************************
 *
 * To run this tool you need StreamDebugger library:
 *   https://github.com/vshymanskyy/StreamDebugger
 *   or from http://librarymanager/all#StreamDebugger
 *
 * TinyGSM Getting Started guide:
 *   http://tiny.cc/tiny-gsm-readme
 *
 **************************************************************/

// Select your modem:
#define TINY_GSM_MODEM_SIM800
// #define TINY_GSM_MODEM_SIM900
// #define TINY_GSM_MODEM_A6
// #define TINY_GSM_MODEM_A7
// #define TINY_GSM_MODEM_M590
// #define TINY_GSM_MODEM_ESP8266
// #define TINY_GSM_MODEM_XBEE 

#include <TinyGsmClient.h>
#include <StreamDebugger.h>

// Set serial for debug console (to the Serial Monitor, speed 115200)
#define SerialMon Serial

// Set serial for AT commands (to the module)
// Use Hardware Serial on Mega, Leonardo, Micro
#define SerialAT Serial1

// or Software Serial on Uno, Nano
//#include <SoftwareSerial.h>
//SoftwareSerial SerialAT(2, 3); // RX, TX

StreamDebugger debugger(SerialAT, SerialMon);
TinyGsm modem(debugger);

void setup() {
  // Set console baud rate
  SerialMon.begin(115200);
  delay(10);

  // Set GSM module baud rate
  SerialAT.begin(115200);
  delay(3000);

  if (!modem.init()) {
    SerialMon.println(F("***********************************************************"));
    SerialMon.println(F(" Cannot initialize modem!"));
    SerialMon.println(F("   Use File -> Examples -> TinyGSM -> tools -> AT_Debug"));
    SerialMon.println(F("   to find correct configuration"));
    SerialMon.println(F("***********************************************************"));
    return;
  }

  bool ret = modem.factoryDefault();

  SerialMon.println(F("***********************************************************"));
  SerialMon.print  (F(" Return settings to Factory Defaults: "));
  SerialMon.println((ret) ? "OK" : "FAIL");
  SerialMon.println(F("***********************************************************"));
}

void loop() {

}