SocketIO websocket connection with ESP32 SIM7000G

Using Arduino Networking, Protocols, and Devices
1

I'm having issues getting my ESP32 SIM7000G to connect to a websocket.
I'm using a websocket tester piesocket.com with no reponse. Is there anything I need to add or change for this to work? Thanks for any suggestions.

#include <Arduino.h>
#include <WebSocketsClient.h>
#include <SocketIOclient.h>

SocketIOclient socketIO;

#define SerialMon Serial
#define SerialAT Serial1

#define TINY_GSM_MODEM_SIM7000SSL
#define TINY_GSM_RX_BUFFER 1024 

#define SerialAT Serial1

#include <TinyGsmClient.h>

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

#define UART_BAUD           9600
#define PIN_DTR             25
#define PIN_TX              27
#define PIN_RX              26
#define PWR_PIN             4
#define LED_PIN             12

const char apn[]  = "h2g2";
const char user[] = "";
const char pass[] = "";

void modemPowerOn()
{
    pinMode(PWR_PIN, OUTPUT);
    digitalWrite(PWR_PIN, LOW);
    delay(1000);    //Datasheet Ton mintues = 1S
    digitalWrite(PWR_PIN, HIGH);
}

void modemPowerOff()
{
    pinMode(PWR_PIN, OUTPUT);
    digitalWrite(PWR_PIN, LOW);
    delay(1500);    //Datasheet Ton mintues = 1.2S
    digitalWrite(PWR_PIN, HIGH);
}

void modemRestart()
{
    modemPowerOff();
    delay(1000);
    modemPowerOn();
}

void socketIOEvent(socketIOmessageType_t type, uint8_t * payload, size_t length) 
{
    switch(type) 
    {
        case sIOtype_DISCONNECT:
            Serial.printf("Disconnected!");
            break;
        case sIOtype_CONNECT:
            Serial.printf("Connected to url: %s\n", payload);     
    }
}

void setup()
{
    SerialMon.begin(115200);
    
    pinMode(LED_PIN, OUTPUT);
    digitalWrite(LED_PIN, HIGH);

    modemPowerOn();

    SerialAT.begin(UART_BAUD, SERIAL_8N1, PIN_RX, PIN_TX);
    
    delay(10000);
    
    String modemInfo = modem.getModemInfo();
    SerialMon.print("Modem: ");
    SerialMon.println(modemInfo);

    SerialMon.print("Waiting for network...");
    if (!modem.waitForNetwork(240000L)) 
    {
        SerialMon.println(" fail");
        delay(10000);
        return;
    }
    SerialMon.println(" OK");

    if (modem.isNetworkConnected()) 
    {
      SerialMon.println("Network connected");
    }

    SerialMon.print(F("Connecting to APN: "));
    SerialMon.print(apn);
    if (!modem.gprsConnect(apn, user, pass)) 
    {
      SerialMon.println(" fail");
      delay(10000);
      return;
    }

    socketIO.begin("wss://demo.piesocket.com/v3/channel_1?api_key=VCXCEuvhGcBDP7XhiJJUDvR1e1D3eiVjgZ9VRiaV&notify_self",443);
    socketIO.onEvent(socketIOEvent);
}

void loop()
{}
2

I do not have the answer, but the library I think you are using seems to be deprecated.

In the README, they point to an alternative:

Maybe you have more luck with that library.

3

I have tried, am getting stack on modem.gprsConnect(apn, user, pass); I get this error
ERROR
AT+CNACT=1,"internet"
AT+CNACT=1,"internet"
AT+CNACT=1,"internet"
Hope you have already found a way out all these days. Please share, I have a SIM800L and an ESP32 wish to do web sockets.

4

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