WebSocketClient_ENC.ino

/****************************************************************************************************************************
  WebSocketClient_ENC.ino
  For boards using ENC28J60 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

  Created on: 24.05.2015
  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_ETHERNET_ENC
#define SHIELD_TYPE               "ENC28J60 using EthernetENC Library"

#include <WebSocketsClient_Generic.h>

WebSocketsClient webSocket;

uint8_t mac[6] =  { 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x08 };

// SSL not working here yet.
#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

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

    case WStype_CONNECTED:
    {
      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.printf("[WSc] get ping\n");
      break;

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

    case WStype_ERROR:
    case WStype_FRAGMENT_TEXT_START:
    case WStype_FRAGMENT_BIN_START:
    case WStype_FRAGMENT:
    case WStype_FRAGMENT_FIN:
      break;

    default:
      break;
  }
}

void setup()
{
  //Initialize serial and wait for port to open:
  Serial.begin(115200);

  while (!Serial);

  Serial.print("\nStart WebSocketClient_ENC on " + String(BOARD_NAME));
  Serial.print(" with ");
  Serial.println(SHIELD_TYPE);
  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);

  // start the ethernet connection and the server:
  // Use Static IP
  //Ethernet.begin(mac, clientIP);
  //Configure IP address via DHCP
  Ethernet.begin(mac);

  Serial.print("WebSockets Client IP address: ");
  Serial.println(Ethernet.localIP());

  // server address, port and URL
  Serial.print("Connecting to 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();
}