connection refused [2107430] ### Closed: 0 #609

nikitanagar62 · 2023-12-12T07:32:50Z

nikitanagar62
Dec 12, 2023

I am working on gsm with esp32 and sending data on firebase, but connection refused error occur. Here is the code:

#define TINY_GSM_MODEM_SIM7600  // SIM7600 AT instruction is compatible with A7670
#define SerialAT Serial1
#define SerialMon Serial
#define TINY_GSM_USE_GPRS true
#define TINY_GSM_DEBUG SerialMon
#define TINY_GSM_USE_WIFI false
#include <Arduino.h>
#include <TinyGsmClient.h>
#include <Firebase_ESP_Client.h>
#include "MPU9250.h"
#include <TinyGPSPlus.h>
#include <addons/TokenHelper.h>
#include <addons/RTDBHelper.h>



// See all AT commands, if wanted
#ifdef DUMP_AT_COMMANDS
#include <StreamDebugger.h>
StreamDebugger debugger(SerialAT, SerialMon);
TinyGsm modem(debugger);
#else
TinyGsm modem(SerialAT);
#endif
TinyGsmClient client(modem);

#define GSM_PIN "" 
String number = "xxxxxxxxxx"; 
String _buffer;

TinyGPSPlus gps;
TinyGsmClient gsm_client(modem);

static const uint32_t GPSBaud = 9600;
int sensor = 34;
int ANALOG_IN_PIN = 35;
int Battery_percent;
float GX;
float GY;
float GZ;
int Accx;
int Accy;
int Accz;
MPU9250 mpu;
String battery_alert = "Calling";
 

float adc_voltage = 0.0;
float voltage = 0.0;
 
// Floats for resistor values in divider (in ohms)
float R1 = 510.0;
float R2 = 1000.0; 
 
float ref_voltage = 3.3;
int adc_value = 0;

float map(float x, float in_min, float in_max, float out_min, float out_max) {
  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

const char apn[] = "";                 // Your GPRS credentials, if any
const char gprsUser[] = "";
const char gprsPass[] = "";

#define uS_TO_S_FACTOR 1000000ULL  // Conversion factor for micro seconds to seconds
#define TIME_TO_SLEEP 600          // Time ESP32 will go to sleep (in seconds)

#define UART_BAUD 115200

#define PIN_TX 26
#define PIN_RX 27


float MQ3;
int Unique_ID;
double Latitude;
double Longitude;


#define API_KEY "My_api"
#define DATABASE_URL "My_url"
#define USER_EMAIL "my_mail"
#define USER_PASSWORD "my_password"


FirebaseData fbdo;
FirebaseAuth auth;
FirebaseConfig config;

unsigned long sendDataPrevMillis = 0;
unsigned long count = 0;
bool signupOK = false;


void setup() {
  Serial.begin(9600);
  Serial2.begin(9600);
  delay(3000);
  Wire.begin();

  SerialAT.begin(UART_BAUD, SERIAL_8N1, PIN_RX, PIN_TX);

  Serial.println("In setup stage 1");
  DBG("Wait...");

  delay(3000);

  
  DBG("Initializing modem...");
  if (!modem.init()) {
    DBG("Failed to restart modem, delaying 10s and retrying");
    return;
  }

  modem.setNetworkMode(38);
  if (modem.waitResponse(10000L) != 1) {
    DBG(" setNetworkMode faill");
  }
  delay(2000);
  String name = modem.getModemName();
  DBG("Modem Name:", name);

  String modemInfo = modem.getModemInfo();
  DBG("Modem Info:", modemInfo);

  SerialAT.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
  delay(1000);

  Serial.println("In setup stage 2");

  Serial_Printf("Firebase Client v%s\n\n", FIREBASE_CLIENT_VERSION);
  Serial.println("In setup stage 3");

  config.api_key = API_KEY;
  auth.user.email = USER_EMAIL;
  auth.user.password = USER_PASSWORD;

  Serial.println("In setup stage 4");
  config.database_url = DATABASE_URL;
  config.token_status_callback = tokenStatusCallback;  // see addons/TokenHelper.h
  fbdo.setGSMClient(&gsm_client, &modem, GSM_PIN, apn, gprsUser, gprsPass);


  Firebase.reconnectNetwork(true);
  fbdo.setBSSLBufferSize(4096 /* Rx buffer size in bytes from 512 - 16384 */, 1024 /* Tx buffer size in bytes from 512 - 16384 */);
  Firebase.setDoubleDigits(5);
  Firebase.begin(&config, &auth);
  Serial.println("Firebase Connected successfully");
  Serial.println("In setup stage 5");
 

    if (!mpu.setup(0x68)) {  // change to your own address
        while (1) {
            Serial.println("MPU connection failed. Please check your connection with `connection_check` example.");
            delay(1000);
            return;
        }
    }
}


void gps_data() {

  Serial.print(F("Location: "));

  if (gps.location.isValid()) {

    Serial.print("Lat: ");
    Latitude = gps.location.lat();
    Serial.println(Latitude, 6);
    Serial.print("Lng: ");
    Longitude = gps.location.lng();
    Serial.println(Longitude, 6);

  }

  else {
    Serial.println(F("INVALID"));
  }
}

void loop() {

  while (Serial2.available() > 0)
    if (gps.encode(Serial2.read()))

      gps_data();

  if (millis() > 5000 && gps.charsProcessed() < 10)

  {
    Serial.println(F("No GPS detected: check wiring."));
  }

    if (mpu.update()) {
        static uint32_t prev_ms = millis();
        if (millis() > prev_ms + 25) {
             gyroscope_data();
            prev_ms = millis();
        }
    }



  if (Firebase.ready() && (millis() - sendDataPrevMillis > 15000 || sendDataPrevMillis == 0)) {
    sendDataPrevMillis = millis();

      if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Battery_percent", Battery_percent)) {
      Serial.println("Battery_percent Value Inserted");
    } else {
      Serial.println("Battery_percent Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }


    if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Latitude", Latitude)) {
      Serial.println("Latitude Inserted");
    } else {
      Serial.println(fbdo.errorReason());
    }

     if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Longitude", Longitude)) {
      Serial.println("Longitude Inserted");
    } else {
      Serial.println(fbdo.errorReason());
    }

    if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/MQ3", MQ3)) {
      Serial.println("MQ3 Value Inserted");
    } else {
      Serial.println("MQ3 Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }


    if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Gx", GX)) {
      Serial.println("Gx Value Inserted");
    } else {
      Serial.println("Gx Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }

    if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Gy", GY)) {
      Serial.println("Gy Value Inserted");
    } else {
      Serial.println("Gy Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }


    if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Gz", GZ)) {
      Serial.println("Gz Value Inserted");
    } else {
      Serial.println("Gz Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }

     if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Accx", Accx)) {
      Serial.println("Accx Value Inserted");
    } else {
      Serial.println("Accx Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }

     if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Accy", Accy)) {
      Serial.println("Accy Value Inserted");
    } else {
      Serial.println("Accy Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }

     if (Firebase.RTDB.setInt(&fbdo, "/PROD/DeviceLocations/DEV_1004/Accz", Accz)) {
      Serial.println("Accz Value Inserted");
    } else {
      Serial.println("Accz Value Not Inserted");
      Serial.println(fbdo.errorReason());
    }

  
    if(Firebase.RTDB.setTimestamp(&fbdo, "/PROD/DeviceLocations/DEV_1004/Timestamp") ){
      Serial.println("Timestamp Value Inserted");
    } else {
      Serial.println("Timestamp Value Not Inserted");
      Serial.println(fbdo.errorReason());

    }


  } else {
    Serial.println("outside the loop");
  }

 
  display();
  gps_data();
  delay(500);
 
}

void callWhenChargingisLow() {
  SerialAT.print (F("ATD"));
  SerialAT.print (number);
  SerialAT.print (F(";\r\n"));
  _buffer = SerialAT.readString() ;
  Serial.println(_buffer);

}

void display() {

  MQ3 = analogRead(sensor);
  Serial.print("MQ3: ");
  Serial.println(MQ3);

  adc_value = analogRead(ANALOG_IN_PIN);
  adc_voltage  = (adc_value * ref_voltage) / 4096.0;
  voltage = adc_voltage / (R2/(R1+R2));
  Battery_percent = map(voltage, 2.90 , 3.82 , 00, 100);

  Serial.print("Input Voltage = ");
  Serial.println(voltage, 2);
  Serial.print("Battery_percent= ");
  Serial.println(Battery_percent);
  Serial.println(  );
  if ((voltage <= 3.1) && (battery_alert == "Calling")){
   Serial.println("Battery percentage is too Low, Please charge the battery");
   callWhenChargingisLow();
   String reading =  SerialAT.readString();
   Serial.println(reading);
   battery_alert = "Call_sent";

  }
  if (Battery_percent < 00){
    Battery_percent = 00;
  } 
  if (Battery_percent > 100){
    Battery_percent = 100;
    battery_alert = "Calling";
  }

  delay(500);
}
 
void gyroscope_data(){
  GX = mpu.getYaw();
  Serial.print("Gx: ");
  Serial.println(GX);
  GY = mpu.getPitch();
  Serial.print("Gy: ");
  Serial.println(GY);
  GZ = mpu.getRoll();
  Serial.print("Gz: ");
  Serial.println(GZ);
  Accx = mpu.getAccX();
  Serial.print("Accx: ");
  Serial.println(Accx);
  Accy = mpu.getAccY();
  Serial.print("Accy: ");
  Serial.println(Accy);
  Accz = mpu.getAccZ();
  Serial.print("Accz: ");
  Serial.println(Accz);
}

Can you tell me the reason ?
Thank you

Answered by mobizt

Dec 12, 2023

The error is about "no server or internet access".

You have to check why TinyGSMClient cannot connect to server which it can be hardware, code (initialization) and network issues.

View full answer

mobizt · 2023-12-12T08:14:00Z

mobizt
Dec 12, 2023
Maintainer

Not only macro TINY_GSM_MODEM_SIM7600 defined in your sketch, you should define it in src/FirebaseFS.h too,

Firebase-ESP-Client/examples/ExternalClient/RTDB/GSM/Basic/Basic.ino

Lines 15 to 17 in 43d4a98

    
           // To allow TinyGSM library integration, the following macro should be defined in src/FirebaseFS.h or 
        
           // your custom config file src/CustomFirebaseFS.h. 
        
           //  #define TINY_GSM_MODEM_SIM7600

And make sure your GSM module used SIM7600 compatible modem chip.

In case of other GSM modules, you should read the TinyGSMClient library Readme for the sim model macro.

0 replies

nikitanagar62 · 2023-12-12T08:26:05Z

nikitanagar62
Dec 12, 2023
Author

Yeah I have added this already, and it was working properly. I think there is another issue..

0 replies

mobizt · 2023-12-12T08:33:41Z

mobizt
Dec 12, 2023
Maintainer

Are you sure your GSM module works? I did not see any debug information.

You never even reset the modem.

0 replies

nikitanagar62 · 2023-12-12T08:40:25Z

nikitanagar62
Dec 12, 2023
Author

yes I am sure. Here is the src/FirebaseFS.h file:

`#include "./core/Firebase_Client_Version.h"
#if !FIREBASE_CLIENT_VERSION_CHECK(40408)
#error "Mixed versions compilation."
#endif

#ifndef FirebaseFS_H
#define FirebaseFS_H

#pragma once

#include <Arduino.h>
#include "mbfs/MB_MCU.h"

/**📍 Default Main Class */
#define FIREBASE_ESP32_CLIENT 1
#define TINY_GSM_MODEM_SIM7600

/** 📌 Predefined Build Options

⛔ Use following build flag to disable all predefined options.
-D FIREBASE_DISABLE_ALL_OPTIONS
*/

/**📍 For enabling the device or library time setup from NTP server

⛔ Use following build flag to disable.
-D DISABLE_NTP_TIME
*/
#define ENABLE_NTP_TIME

/**📍 For enabling the error string from error reason

⛔ Use following build flag to disable.
-D DISABLE_ERROR_STRING
*/
#define ENABLE_ERROR_STRING

/**📍 For RTDB class compilation

⛔ Use following build flag to disable.
-D DISABLE_RTDB
*/
#define FIREBASE_ENABLE_RTDB

/**📍 For RTDB Error Queue compilation

⛔ Use following build flag to disable.
-D DISABLE_ERROR_QUEUE
*/
#define FIREBASE_ENABLE_ERROR_QUEUE

/**📍 For Firestore compilation

⛔ Use following build flag to disable.
-D DISABLE_FIRESTORE
*/
#define FIREBASE_ENABLE_FIRESTORE

/**📍 For Firebase Cloud Messaging compilation

⛔ Use following build flag to disable.
-D DISABLE_FCM
*/
#define FIREBASE_ENABLE_FCM

/**📍 For Firebase Storage compilation

⛔ Use following build flag to disable.
-D DISABLE_FB_STORAGE
*/
#define FIREBASE_ENABLE_FB_STORAGE

/**📍 For Google Cloud Storage compilation

⛔ Use following build flag to disable.
-D DISABLE_GC_STORAGE
*/
#define FIREBASE_ENABLE_GC_STORAGE

/**📍 For Functions for Firebase compilation

⛔ Use following build flag to disable.
-D DISABLE_FB_FUNCTIONS
*/
#define FIREBASE_ENABLE_FB_FUNCTIONS

/**📍 For enabling PSRAM support

⛔ Use following build flag to disable.
-D DISABLE_PSRAM
*/
#define FIREBASE_USE_PSRAM

/**📍 For enabling OTA updates support via RTDB, Firebase Storage and Google Cloud Storage buckets

⛔ Use following build flag to disable.
-D DISABLE_OTA
*/
#define ENABLE_OTA_FIRMWARE_UPDATE

/**📍 For enabling Keep Alive connection mode

⛔ Use following build flag to disable.
-D DISABLE_KEEP_ALIVE
*/
#define USE_CONNECTION_KEEP_ALIVE_MODE

/**📌 For enabling flash filesystem support
*

📍 For SPIFFS
#define DEFAULT_FLASH_FS SPIFFS
📍 For LittleFS Filesystem
#include <LittleFS.h>
#define DEFAULT_FLASH_FS LittleFS
📍 For SPIFFS Filesystem
#if defined(ESP32)
#include <SPIFFS.h>
#endif
#define DEFAULT_FLASH_FS SPIFFS
📍 For FAT Filesystem
#include <FFat.h>
#define DEFAULT_FLASH_FS FFat //For ESP32 FAT
🚫 Use following build flags to disable.
-D DISABLE_FLASH or -DDISABLE_FLASH in PlatformIO
*/

#if defined(ESP32) || defined(ESP8266) || defined(MB_ARDUINO_PICO)

#if defined(ESP8266) || defined(MB_ARDUINO_PICO)

#include <LittleFS.h>
#define DEFAULT_FLASH_FS LittleFS

#elif defined(ESP_ARDUINO_VERSION) /* ESP32 core >= v2.0.x / / ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(2, 0, 0) */

#include <LittleFS.h>
#define DEFAULT_FLASH_FS LittleFS

#else

#include <SPIFFS.h>
#define DEFAULT_FLASH_FS SPIFFS

#endif

// For ESP32, format SPIFFS or FFat if mounting failed
#define FORMAT_FLASH_IF_MOUNT_FAILED 1

/**📌 For enabling SD filesystem support
*

📍 For SD
#include <SD.h>
#define DEFAULT_SD_FS SD
#define CARD_TYPE_SD 1
📍 For SD MMC (ESP32)
#include <SD_MMC.h>
#define DEFAULT_SD_FS SD_MMC //For ESP32 SDMMC
#define CARD_TYPE_SD_MMC 1
📍 For SdFat on ESP32 and other devices except for ESP8266
#include <SdFat.h> //https://github.com/greiman/SdFat
static SdFat sd_fat_fs; //should declare as static here
#define DEFAULT_SD_FS sd_fat_fs
#define CARD_TYPE_SD 1
#define SD_FS_FILE SdFile
⛔ Use following build flags to disable.
-D DISABLE_SD or -DDISABLE_SD in PlatformIO
*/
#if defined(ESP32) || defined(ESP8266)
#include <SD.h>
#define DEFAULT_SD_FS SD
#define CARD_TYPE_SD 1
#elif defined(MB_ARDUINO_PICO)
// Use SDFS (ESP8266SdFat) instead of SD
#include <SDFS.h>
#define DEFAULT_SD_FS SDFS
#define CARD_TYPE_SD 1
#endif

/** 🔖 Optional Build Options
*

🏷️ For external Ethernet module support.
- Should define both library name and class object name.
- FIREBASE_ETHERNET_MODULE_LIB is the Ethernet library name with extension (.h) and
should be inside "" or <> e.g. "Ethernet.h".
- FIREBASE_ETHERNET_MODULE_CLASS is the name of static object defined from class e.g. Ethernet.
- FIREBASE_ETHERNET_MODULE_TIMEOUT is the time out in milliseconds to wait network connection.
#define FIREBASE_ETHERNET_MODULE_LIB "EthernetLib.h"
#define FIREBASE_ETHERNET_MODULE_CLASS EthernetClass
#define FIREBASE_ETHERNET_MODULE_TIMEOUT 2000
🏷️ For disabling on-board WiFI functionality in case external Client usage
#define FIREBASE_DISABLE_ONBOARD_WIFI
🏷️ For disabling native (sdk) Ethernet functionality in case external Client usage
#define FIREBASE_DISABLE_NATIVE_ETHERNET
🏷️ For debug port assignment.
#define FIREBASE_DEFAULT_DEBUG_PORT Serial

*/
#define ENABLE_ESP8266_ENC28J60_ETH

#if __has_include("CustomFirebaseFS.h")
#include "CustomFirebaseFS.h"
#endif

#include "./core/Firebase_Build_Options.h"

#endif`

1 reply

mobizt Dec 12, 2023
Maintainer

I mean the debug printing information on serial port.

You should make your GSM modem to work and should follow the TinyGSMClient library example.

mobizt · 2023-12-12T08:54:50Z

mobizt
Dec 12, 2023
Maintainer

The error is about "no server or internet access".

You have to check why TinyGSMClient cannot connect to server which it can be hardware, code (initialization) and network issues.

1 reply

nikitanagar62 Dec 12, 2023
Author

Thank You for the help

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connection refused [2107430] ### Closed: 0 #609

nikitanagar62 Dec 12, 2023

Replies: 5 comments · 2 replies

mobizt Dec 12, 2023 Maintainer

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mobizt Dec 12, 2023 Maintainer

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mobizt
Dec 12, 2023
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nikitanagar62
Dec 12, 2023
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mobizt
Dec 12, 2023
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Dec 12, 2023
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mobizt Dec 12, 2023
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mobizt
Dec 12, 2023
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nikitanagar62 Dec 12, 2023
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