Generic_WebSocketClient_WiFiNINA.ino

/****************************************************************************************************************************
  Generic_WebSocketClient_WiFiNINA.ino
  For Generic boards using WiFiNINA Shield/Module

  Based on and modified from WebSockets libarary https://github.com/Links2004/arduinoWebSockets
  to support other boards such as  SAMD21, SAMD51, Adafruit's nRF52 boards, etc.

  Built by Khoi Hoang https://github.com/khoih-prog/WebSockets_Generic
  Licensed under MIT license

  Example for connecting and maintining a connection with a SockJS+STOMP websocket connection.
  In this example, we connect to a Spring application (see https://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html).

  Originally Created on: 24.05.2015
  Original Author: Markus Sattler
 *****************************************************************************************************************************/

#if ( defined(ARDUINO_SAM_DUE) || defined(__SAM3X8E__) )
  // Default pin 10 to SS/CS
  #define USE_THIS_SS_PIN       10
  #define BOARD_TYPE      "SAM DUE"
#elif ( defined(CORE_TEENSY) )
  #error You have to use examples written for Teensy
#endif

#ifndef BOARD_NAME
  #define BOARD_NAME    BOARD_TYPE
#endif

#define _WEBSOCKETS_LOGLEVEL_     2
#define WEBSOCKETS_NETWORK_TYPE   NETWORK_WIFININA

#include <WebSocketsClient_Generic.h>

WebSocketsClient webSocket;

#define USE_SSL         false

#if USE_SSL
  // Deprecated echo.websocket.org to be replaced
  #define WS_SERVER           "wss://echo.websocket.org"
  #define WS_PORT             443
#else
  // To run a local WebSocket Server
  #define WS_SERVER           "192.168.2.30"
  #define WS_PORT             8080
#endif

int status = WL_IDLE_STATUS;

///////please enter your sensitive data in the Secret tab/arduino_secrets.h

char ssid[] = "your_ssid";        // your network SSID (name)
char pass[] = "12345678";         // your network password (use for WPA, or use as key for WEP), length must be 8+

bool alreadyConnected = false;

void webSocketEvent(const WStype_t& type, uint8_t * payload, const size_t& length)
{
  switch (type)
  {
    case WStype_DISCONNECTED:
      if (alreadyConnected)
      {
        Serial.println("[WSc] Disconnected!");
        alreadyConnected = false;
      }

      break;

    case WStype_CONNECTED:
    {
      alreadyConnected = true;

      Serial.print("[WSc] Connected to url: ");
      Serial.println((char *) payload);

      // send message to server when Connected
      webSocket.sendTXT("Connected");
    }
    break;

    case WStype_TEXT:
      Serial.print("[WSc] get text: ");
      Serial.println((char *) payload);

      // send message to server
      // webSocket.sendTXT("message here");
      break;

    case WStype_BIN:
      Serial.print("[WSc] get binary length: ");
      Serial.println(length);

      // KH, To check
      // hexdump(payload, length);

      // send data to server
      webSocket.sendBIN(payload, length);
      break;

    case WStype_PING:
      // pong will be send automatically
      Serial.println("[WSc] get ping");
      break;

    case WStype_PONG:
      // answer to a ping we send
      Serial.println("[WSc] get pong");
      break;

    default:
      break;
  }
}

void printWifiStatus()
{
  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

  // print your board's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("WebSockets Client @ IP Address: ");
  Serial.println(ip);

  // print the received signal strength:
  long rssi = WiFi.RSSI();
  Serial.print("signal strength (RSSI):");
  Serial.print(rssi);
  Serial.println(" dBm");
}

void setup()
{
  // Serial.begin(921600);
  Serial.begin(115200);

  while (!Serial);

  Serial.print("\nStart Generic_WebSocketClient_WiFiNINA on ");
  Serial.println(BOARD_NAME);
  Serial.println(WEBSOCKETS_GENERIC_VERSION);

  Serial.println("Used/default SPI pinout:");
  Serial.print("MOSI:");
  Serial.println(MOSI);
  Serial.print("MISO:");
  Serial.println(MISO);
  Serial.print("SCK:");
  Serial.println(SCK);
  Serial.print("SS:");
  Serial.println(SS);

  // check for the WiFi module:
  if (WiFi.status() == WL_NO_MODULE)
  {
    Serial.println("Communication with WiFi module failed!");

    // don't continue
    while (true);
  }

  String fv = WiFi.firmwareVersion();

  if (fv < WIFI_FIRMWARE_LATEST_VERSION)
  {
    Serial.println("Please upgrade the firmware");
  }

  // attempt to connect to Wifi network:
  while (status != WL_CONNECTED)
  {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:
    //delay(10000);
  }

  printWifiStatus();

  // server address, port and URL
  Serial.print("WebSockets Server : ");
  Serial.println(WS_SERVER);

  // server address, port and URL
#if USE_SSL
  webSocket.beginSSL(WS_SERVER, WS_PORT);
#else
  webSocket.begin(WS_SERVER, WS_PORT, "/");
#endif

  // event handler
  webSocket.onEvent(webSocketEvent);

  // use HTTP Basic Authorization this is optional remove if not needed
  //webSocket.setAuthorization("user", "Password");

  // try ever 5000 again if connection has failed
  webSocket.setReconnectInterval(5000);

  // start heartbeat (optional)
  // ping server every 15000 ms
  // expect pong from server within 3000 ms
  // consider connection disconnected if pong is not received 2 times
  webSocket.enableHeartbeat(15000, 3000, 2);

  // server address, port and URL
  Serial.print("Connected to WebSockets Server @ ");
  Serial.println(WS_SERVER);
}

void loop()
{
  webSocket.loop();
}