WebSocketClientSocketIO_RP2040W.ino

/****************************************************************************************************************************
  WebSocketClientSocketIO_RP2040W.ino
  For RP2040W boards using CYC43439 WiFi

  Blynk_WiFiNINA_WM is a library for the Mega, Teensy, SAM DUE, nRF52, STM32 and SAMD boards
  (https://github.com/khoih-prog/Blynk_WiFiNINA_WM) to enable easy configuration/reconfiguration and
  autoconnect/autoreconnect of WiFiNINA/Blynk

  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_RASPBERRY_PI_PICO_W) )
  #if defined(WEBSOCKETS_NETWORK_TYPE)
    #undef WEBSOCKETS_NETWORK_TYPE
  #endif
  #define WEBSOCKETS_NETWORK_TYPE            NETWORK_RP2040W_WIFI
#else
  #error This code is intended to run only on the RP2040W boards ! Please check your Tools->Board setting.
#endif

#define _WEBSOCKETS_LOGLEVEL_     2

//////////////////////////////
// New in v2.16.0
#define SIO_PING_INTERVAL                     90000L
#define SIO_PONG_TIMEOUT                      120000L
#define SIO_DISCONNECT_TIMEOUT_COUNT          10

//////////////////////////////

#include <WiFi.h>

#include <ArduinoJson.h>

#include <WebSocketsClient_Generic.h>
#include <SocketIOclient_Generic.h>

SocketIOclient socketIO;

int status = WL_IDLE_STATUS;

// Select the IP address according to your local network
IPAddress clientIP(192, 168, 2, 225);

// Select the IP address according to your local network
IPAddress serverIP(192, 168, 2, 30);
uint16_t  serverPort = 8080;

///////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+

void socketIOEvent(const socketIOmessageType_t& type, uint8_t * payload, const size_t& length)
{
  switch (type)
  {
    case sIOtype_DISCONNECT:
      Serial.println("[IOc] Disconnected");

      break;

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

      // join default namespace (no auto join in Socket.IO V3)
      socketIO.send(sIOtype_CONNECT, "/");

      break;

    case sIOtype_EVENT:
      Serial.print("[IOc] Get event: ");
      Serial.println((char*) payload);

      break;

    case sIOtype_ACK:
      Serial.print("[IOc] Get ack: ");
      Serial.println(length);

      //hexdump(payload, length);

      break;

    case sIOtype_ERROR:
      Serial.print("[IOc] Get error: ");
      Serial.println(length);

      //hexdump(payload, length);

      break;

    case sIOtype_BINARY_EVENT:
      Serial.print("[IOc] Get binary: ");
      Serial.println(length);

      //hexdump(payload, length);

      break;

    case sIOtype_BINARY_ACK:
      Serial.print("[IOc] Get binary ack: ");
      Serial.println(length);

      //hexdump(payload, length);

      break;

    case sIOtype_PING:
      Serial.println("[IOc] Get PING");

      break;

    case sIOtype_PONG:
      Serial.println("[IOc] 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()
{
  //Initialize serial and wait for port to open:
  Serial.begin(115200);

  while (!Serial);

  Serial.print("\nStart WebSocketClientSocketIO_RP2040W on ");
  Serial.println(BOARD_NAME);
  Serial.println(WEBSOCKETS_GENERIC_VERSION);

  ///////////////////////////////////

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

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

  Serial.print(F("Connecting to SSID: "));
  Serial.println(ssid);

  status = WiFi.begin(ssid, pass);

  delay(1000);

  // attempt to connect to WiFi network
  while ( status != WL_CONNECTED)
  {
    delay(500);

    // Connect to WPA/WPA2 network
    status = WiFi.status();
  }

  printWifiStatus();

  ///////////////////////////////////

  // server address, port and URL
  Serial.print("Connecting to WebSockets Server @ IP address: ");
  Serial.print(serverIP);
  Serial.print(", port: ");
  Serial.println(serverPort);

  // setReconnectInterval to 10s, new from v2.5.1 to avoid flooding server. Default is 0.5s
  socketIO.setReconnectInterval(10000);

  socketIO.setExtraHeaders("Authorization: 1234567890");

  // server address, port and URL
  // void begin(IPAddress host, uint16_t port, String url = "/socket.io/?EIO=4", String protocol = "arduino");
  // To use default EIO=4 from v2.5.1
  socketIO.begin(serverIP, serverPort);

  // event handler
  socketIO.onEvent(socketIOEvent);
}

unsigned long messageTimestamp = 0;

void loop()
{
  socketIO.loop();

  uint64_t now = millis();

  if (now - messageTimestamp > 30000)
  {
    messageTimestamp = now;

    // creat JSON message for Socket.IO (event)
    DynamicJsonDocument doc(1024);
    JsonArray array = doc.to<JsonArray>();

    // add evnet name
    // Hint: socket.on('event_name', ....
    array.add("event_name");

    // add payload (parameters) for the event
    JsonObject param1 = array.createNestedObject();
    param1["now"]     = (uint32_t) now;

    // JSON to String (serializion)
    String output;
    serializeJson(doc, output);

    // Send event
    socketIO.sendEVENT(output);

    // Print JSON for debugging
    Serial.println(output);
  }
}