ESP32 > Not Sure if TinyGSM nor HTTPClient.h

[bgondell]

Summary: Code works fine on WiFi, but on GPRS it crash. Given examples works fine also.

Note: First versions of code used ArduinoHTTPClient.h, which actually worked on Wifi/GPRS, but entire code was very different (not only the part on using Wifi or GPRS). Then I've changed to HTTPClient.h because code had others problems related to data, not communication itself.

[X] I have read the Troubleshooting section of the ReadMe

What type of issues is this?

[ ] Request to support a new module [ ] Bug or problem compiling the library [X] Bug or issue with library functionality (ie, sending data over TCP/IP) [X] Question or request for help

What are you working with?

Modem: SIM800L Main processor board: ESP32 DevKit v1 - ESP core 1.0.4 TinyGSM version: 0.10.5 (latest on Library Manager) Code: < related code because full code has 900 lines >

...
#define TINY_GSM_MODEM_SIM800
#define TINY_GSM_RX_BUFFER 1024
#define SerialAT Serial2
#define SerialMon Serial
#include <HTTPClient.h>

#define USE_GPRS true
#define USE_WIFI false

#ifdef USE_GPRS
  #include <TinyGsmClient.h>
#else
  #include <WiFi.h>
#endif

#ifdef USE_GPRS
    #ifdef DUMP_AT_COMMANDS
      #include <StreamDebugger.h>
      StreamDebugger debugger(SerialAT, SerialMon);
      TinyGsm modem(debugger);
    #else
      TinyGsm modem(SerialAT);
    #endif
  TinyGsmClient client(modem);
#else
  WiFiClient wifi;
#endif

const char apn[]  = "virtueyes.vivo.com.br";
const char gprsUser[] = "vivo";
const char gprsPass[] = "vivo";
const char* url = "http://XXX.XXX.XXX.XXX/ws/saveData";

void setup() {
...

  if ( USE_GPRS ) {
    SerialAT.begin(38400); // Set GSM module baud rate.
    ConnectGPRS(1); // 0 = modem init. 1 = modem restart. Pode levar algunms minutos.
  };

  if ( USE_WIFI ) {
    Serial.println("Connecting to ");
    Serial.println(ssid);
    WiFi.begin(ssid, password);

    while (WiFi.status() != WL_CONNECTED) {
      delay(1000);
      Serial.print(".");
    }
    Serial.println("");
    Serial.println("WiFi connected..!");
    Serial.print("Got IP: ");  Serial.println(WiFi.localIP());
    Serial.print("Gateway IP: "); Serial.println(WiFi.gatewayIP());
  }
 ...
}

// Conecta a rede GSM é activa comunicaçao GPRS
void ConnectGPRS(int mode) { 

  bool conectado = false;
  int i = 0;
  while ( !conectado && (i < 5) ){
    conectado = conectado || modem.isGprsConnected();
    i++;
    delay(100);
  }

  //Condiçao para reiniciar GPRS no caso do reinicio da ESP.
  if (millis() < 2000) {
    conectado = false;
    mode = 1;
  }

  if (!conectado) { 
    Serial.println("Initializando modem...");
    if (mode == 0) modem.init();
    else if (mode == 1 ) modem.restart();
    else Serial.println("ConnectGPRS Mode incorreto");

    Serial.print("Conectando ao APN: ");
    Serial.println(apn);

    while (!conectado) {
      conectado = modem.gprsConnect(apn, gprsUser, gprsPass);
      if (!conectado) Serial.println(" Falhou. Repetindo.");
      delay(10000);
    }
    if (conectado) {
      Serial.println(" Conectado!");
    }
     if (modem.isNetworkConnected()) {
      Serial.println("Conectado a rede GPRS.");
      lastcheck=millis();
    }  
  }
}

void loop() {
.....
 if ( USE_GPRS ) {
    //Verificar conexçao GPRS
      ConnectGPRS(0);
    }
    else ConnectWiFi();

    if (Dados!= "") { //Existem dados para enviar / There is data to send
      Serial.print("Enviando ");
      Serial.print(cant);
      Serial.print(" dados: ");
      Serial.println(Dados);

      Serial.println("Executando HTTP POST... ");

      HTTPClient http;
      Serial.println("http instance created");
      http.begin(url);
      Serial.println("http instance initiated at specified url");
      http.setTimeout(120000); // 120 seg
      Serial.println("http Timeout Setted");
      http.addHeader("Content-Type", "application/json");
      Serial.println("http Headers added");  
      int status = http.POST(Dados);
....
}

The last line (line 234) is when ESP32 Crash.

Expected result - This is what happens if use WIFI : Working Fine

Iniciando Prgm value: 1 CICLOS DA PORTA: 0 UUID: 199 Connecting to <-WiFi-> [D][WiFiGeneric.cpp:337] _eventCallback(): Event: 0 - WIFI_READY [D][WiFiGeneric.cpp:337] _eventCallback(): Event: 2 - STA_START [D][WiFiGeneric.cpp:337] _eventCallback(): Event: 4 - STA_CONNECTED [D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP [D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.159, MASK: 255.255.255.0, GW: 192.168.1.254 . WiFi connected..! Got IP: 192.168.1.159 Gateway IP: 192.168.1.254 Inicializando dados da Porta Dados Novos! Enviando 1 dados: [{"ID":"2500.1","t":1595346122,"uuid":199,"c":0,"I1":0,"I2":1,"I3":1,"I4":1,"I5":0,"I6":0,"I7":0,"I8":0,"T1":0,"T2":0,"T3":0,"C1":0,"C2":0,"C3":0,"S1":8.5,"S2":10.2,"S3":6.9,"S4":6.2,"S5":0}] Executando HTTP POST... http instance created [V][HTTPClient.cpp:235] beginInternal(): url: http://XXX.XXX.XXX.XXX/ws/saveData [D][HTTPClient.cpp:276] beginInternal(): host: XXX.XXX.XXX.XXX port: 80 url: /ws/saveData http Timeout Setted http Headers added [D][HTTPClient.cpp:1025] connect(): connected to XXX.XXX.XXX.XXX:80 [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'HTTP/1.1 200 OK' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Date: Tue, 21 Jul 2020 18:42:03 GMT' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Server: Apache/2.4.29 (Ubuntu)' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Set-Cookie: super_mydev_session=dfasdfavdcertregsdfadcds; path=/; HttpOnly' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Expires: Thu, 19 Nov 1981 08:52:00 GMT' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Cache-Control: no-store, no-cache, must-revalidate' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Pragma: no-cache' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Content-Length: 0' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Keep-Alive: timeout=5, max=100' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Connection: Keep-Alive' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: 'Content-Type: application/json; charset=utf-8' [V][HTTPClient.cpp:1123] handleHeaderResponse(): RX: '' [D][HTTPClient.cpp:1158] handleHeaderResponse(): code: 200 [D][HTTPClient.cpp:368] disconnect(): tcp keep open for reuse

Actual result : This is what happens if use GPRS: (xQueueGenericReceive)- assert failed!

Iniciando Prgm value: 1 CICLOS DA PORTA: 0 UUID: 199 Initializando modem... Conectando ao APN: virtueyes.vivo.com.br Conectado! Conectado a rede GPRS. Setting RTC time Time set on internal RTC: 1595345958 Inicializando dados da Porta Dados Novos! Enviando 1 dados: [{"ID":"2500.1","t":1595345823,"uuid":199,"c":0,"I1":0,"I2":1,"I3":1,"I4":1,"I5":0,"I6":0,"I7":0,"I8":0,"T1":0,"T2":0,"T3":0,"C1":0,"C2":0,"C3":0,"S1":19.7,"S2":7.5,"S3":12.5,"S4":16.8,"S5":0}] Executando HTTP POST... http instance created [V][HTTPClient.cpp:235] beginInternal(): url: http://XXX.XXX.XXX.XXX/ws/saveData [D][HTTPClient.cpp:276] beginInternal(): host: XXX.XXX.XXX.XXX port: 80 url: /ws/saveData http Headers added /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/queue.c:1442 (xQueueGenericReceive)- assert failed! abort() was called at PC 0x4008890d on core 1

Backtrace: 0x4008c50c:0x3ffb3c50 0x4008c73d:0x3ffb3c70 0x4008890d:0x3ffb3c90 0x401217a2:0x3ffb3cd0 0x401219a2:0x3ffb3cf0 0x40113e04:0x3ffb3d10 0x40113e6d:0x3ffb3d30 0x4011100a:0x3ffb3d50 0x4010fe94:0x3ffb3d70 0x40113688:0x3ffb3db0 0x400d759e:0x3ffb3dd0 0x400d6e7a:0x3ffb3e30 0x400d683e:0x3ffb3e60 0x400d6921:0x3ffb3e90 0x400d69f3:0x3ffb3ed0 0x400d6a13:0x3ffb3ef0 0x400d491d:0x3ffb3f10 0x40088c21:0x3ffb3fe0

Rebooting...

Exception Decoder Tool:

Decoding stack results 0x4008c50c: invoke_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp32/panic.c line 155 0x4008c73d: abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp32/panic.c line 170 0x4008890d: xQueueGenericReceive at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/queue.c line 1442 0x401217a2: sys_mutex_lock at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/port/esp32/freertos/sys_arch.c line 78 0x401219a2: sys_arch_protect at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/port/esp32/freertos/sys_arch.c line 469 0x40113e04: do_memp_malloc_pool at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/core/memp.c line 302 0x40113e6d: memp_malloc at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/core/memp.c line 398 0x4011100a: netconn_alloc at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/api/api_msg.c line 742 0x4010fe94: netconn_new_with_proto_and_callback at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/api/api_lib.c line 133 0x40113688: lwip_socket at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/api/sockets.c line 1587 0x400d759e: WiFiClient::connect(IPAddress, unsigned short, int) at C:\Users\evelis\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4/tools/sdk/include/lwip/lwip/sockets.h line 593 0x400d6e7a: WiFiClient::connect(char const, unsigned short, int) at C:\Users\evelis\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WiFi\src\WiFiClient.cpp line 281 0x400d683e: HTTPClient::connect() at C:\Users\evelis\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\HTTPClient\src\HTTPClient.cpp line 1017 0x400d6921: HTTPClient::sendRequest(char const, unsigned char, unsigned int) at C:\Users\evelis\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\HTTPClient\src\HTTPClient.cpp line 552 0x400d69f3: HTTPClient::POST(unsigned char, unsigned int) at C:\Users\evelis\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\HTTPClient\src\HTTPClient.cpp line 493 0x400d6a13: HTTPClient::POST(String) at C:\Users\evelis\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\HTTPClient\src\HTTPClient.cpp line 498 0x400d491d: TaskCommunication(void*) at C:\Users\evelis\Documents\Arduino\PortaV2.3/PortaV2.3.ino line 234 0x40088c21: vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/port.c line 143

Debug and AT command log :

Now the circuit is under review by the electronic technician to check if there are faults on that side. When the circuit board is reviewed, I will debug if necessary.

[SRGDamia1]

The HTTPClient that is part of the ESP32 core is only for WiFi connections using the ESP's WiFiClient It don't think it can be used for any other connection. You have to use the ArduinoHttpClient or read and write the headers and other parts of the HTTP yourself. Sorry!

[alexandreberg]

The HTTPClient that is part of the ESP32 core is only for WiFi connections using the ESP's WiFiClient It don't think it can be used for any other connection. You have to use the ArduinoHttpClient or read and write the headers and other parts of the HTTP yourself. Sorry!

Hi Sara, thanks for your repply. I checked again the sketch and found an error. Now it is transmitting ok without WiFi.