TinyGSM: Web Socket Client for Socket.io

WebSocketClientSocketIO.ino

/**************************************************************
 * WebSocketClient SocketIO
 * TinyGSM Getting Started guide:
 *   http://tiny.cc/tiny-gsm-readme
 *
 **************************************************************/

// Select your modem:
#define TINY_GSM_MODEM_SIM800
// #define TINY_GSM_MODEM_SIM808
// #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

// Increase RX buffer if needed
//#define TINY_GSM_RX_BUFFER 512

#include <TinyGsmClient.h>
#include <WebSocketsClient.h>

#include <Hash.h>

WebSocketsClient webSocket;

#define MESSAGE_INTERVAL 30000
#define HEARTBEAT_INTERVAL 25000

uint64_t messageTimestamp = 0;
uint64_t heartbeatTimestamp = 0;
bool isConnected = false;

// Uncomment this if you want to see all AT commands
//#define DUMP_AT_COMMANDS

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

// 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


// Your GPRS credentials
// Leave empty, if missing user or pass
const char apn[]  = "YourAPN";
const char user[] = "";
const char pass[] = "";

// Server details
const char resource[] = "/TinyGSM/logo.txt";

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

TinyGsmClient client(modem);

int waitInternet() {
  SerialMon.print(F("Waiting for network..."));
  if (!modem.waitForNetwork()) {
    SerialMon.println(" fail");
    delay(10000);
    return 0;
  }
  SerialMon.println(" OK");

  SerialMon.print(F("Connecting to "));
  SerialMon.print(apn);
  if (!modem.gprsConnect(apn, user, pass)) {
    SerialMon.println(" fail");
    delay(10000);
    return 0;
  }
  SerialMon.println(" OK");
  
  webSocket.beginSocketIO("192.168.0.123", 81);
  //webSocket.setAuthorization("user", "Password"); // HTTP Basic Authorization
  webSocket.onEvent(webSocketEvent);
  return 1;
}

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

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

  // Restart takes quite some time
  // To skip it, call init() instead of restart()
  SerialMon.println(F("Initializing modem..."));
  modem.restart();

  String modemInfo = modem.getModemInfo();
  SerialMon.print(F("Modem: "));
  SerialMon.println(modemInfo);

  // Unlock your SIM card with a PIN
  //modem.simUnlock("1234");
}

void loop() {
  
  while(!waitInternet()) {
    delay(100);
  }
  
  webSocket.loop();
  
  if(isConnected) {

        uint64_t now = millis();

        if(now - messageTimestamp > MESSAGE_INTERVAL) {
            messageTimestamp = now;
            // example socket.io message with type "messageType" and JSON payload
            webSocket.sendTXT("42[\"messageType\",{\"greeting\":\"hello\"}]");
        }
        if((now - heartbeatTimestamp) > HEARTBEAT_INTERVAL) {
            heartbeatTimestamp = now;
            // socket.io heartbeat message
            webSocket.sendTXT("2");
        }
    }
}

Hi dear friend, could you please help me, I try your code but the esp when goes to the websocket.loop it restarts

#include <Hash.h> undefined

Just trying to figure out how this is working. Anyone tried it?

isConnected is defined as false and never becomes true.
client is defined as TinyGsmClient, but not used in code.

If this is with arduinoWebSockets,
webSocket.beginSocketIO by default goes to WiFi. How is the library changed to point to TinyGsm?

@shardul10 you got the working solution for this, websocket with Tinygsm

You are trying to connect to a websocket on a local LAN (192.168.0.123) over a WAN connection like GPRS?

Did anyone find a working solution for this ? I am trying to use sim800 with esp32 and connect to a server over websocket .

Dear friend,I don’t find the solution Best regards El El sáb, 15 de jul. de 2023 a la(s) 00:31, Saim Shuja < ***@***.***> escribió:

…

***@***.**** commented on this gist. ------------------------------ Did anyone find a working solution for this ? I am trying to use sim800 with esp32 and connect to a server over websocket . — Reply to this email directly, view it on GitHub <https://gist.github.com/Tolerant/2d1af4c99995c6c7e348b874b73ecbb8#gistcomment-4629782> or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA3ZORXLHC34EFTVOY6KSMTXQITLZBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVA4DSMZXGU3TAMFHORZGSZ3HMVZKMY3SMVQXIZI> . You are receiving this email because you commented on the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

Hi dear friend, could you please help me, I try your code but the esp when goes to the websocket.loop it restarts

Hello bhai have you find any solution for thia