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-rw-r--r--libraries/ESP_Async_WebServer/examples/WebSocketEasy/WebSocketEasy.ino124
1 files changed, 124 insertions, 0 deletions
diff --git a/libraries/ESP_Async_WebServer/examples/WebSocketEasy/WebSocketEasy.ino b/libraries/ESP_Async_WebServer/examples/WebSocketEasy/WebSocketEasy.ino
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+++ b/libraries/ESP_Async_WebServer/examples/WebSocketEasy/WebSocketEasy.ino
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+// SPDX-License-Identifier: LGPL-3.0-or-later
+// Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
+
+//
+// WebSocket example using the easy to use AsyncWebSocketMessageHandler handler that only supports unfragmented messages
+//
+
+#include <Arduino.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#include <WiFi.h>
+#elif defined(ESP8266)
+#include <ESP8266WiFi.h>
+#include <ESPAsyncTCP.h>
+#elif defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350)
+#include <RPAsyncTCP.h>
+#include <WiFi.h>
+#endif
+
+#include <ESPAsyncWebServer.h>
+
+static AsyncWebServer server(80);
+
+// create an easy-to-use handler
+static AsyncWebSocketMessageHandler wsHandler;
+
+// add it to the websocket server
+static AsyncWebSocket ws("/ws", wsHandler.eventHandler());
+
+// alternatively you can do as usual:
+//
+// static AsyncWebSocket ws("/ws");
+// ws.onEvent(wsHandler.eventHandler());
+
+static const char *htmlContent PROGMEM = R"(
+<!DOCTYPE html>
+<html>
+<head>
+ <title>WebSocket</title>
+</head>
+<body>
+ <h1>WebSocket Example</h1>
+ <>Open your browser console!</p>
+ <input type="text" id="message" placeholder="Type a message">
+ <button onclick='sendMessage()'>Send</button>
+ <script>
+ var ws = new WebSocket('ws://192.168.4.1/ws');
+ ws.onopen = function() {
+ console.log("WebSocket connected");
+ };
+ ws.onmessage = function(event) {
+ console.log("WebSocket message: " + event.data);
+ };
+ ws.onclose = function() {
+ console.log("WebSocket closed");
+ };
+ ws.onerror = function(error) {
+ console.log("WebSocket error: " + error);
+ };
+ function sendMessage() {
+ var message = document.getElementById("message").value;
+ ws.send(message);
+ console.log("WebSocket sent: " + message);
+ }
+ </script>
+</body>
+</html>
+ )";
+static const size_t htmlContentLength = strlen_P(htmlContent);
+
+void setup() {
+ Serial.begin(115200);
+
+#ifndef CONFIG_IDF_TARGET_ESP32H2
+ WiFi.mode(WIFI_AP);
+ WiFi.softAP("esp-captive");
+#endif
+
+ // serves root html page
+ server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
+ request->send(200, "text/html", (const uint8_t *)htmlContent, htmlContentLength);
+ });
+
+ wsHandler.onConnect([](AsyncWebSocket *server, AsyncWebSocketClient *client) {
+ Serial.printf("Client %" PRIu32 " connected\n", client->id());
+ server->textAll("New client: " + String(client->id()));
+ });
+
+ wsHandler.onDisconnect([](AsyncWebSocket *server, uint32_t clientId) {
+ Serial.printf("Client %" PRIu32 " disconnected\n", clientId);
+ server->textAll("Client " + String(clientId) + " disconnected");
+ });
+
+ wsHandler.onError([](AsyncWebSocket *server, AsyncWebSocketClient *client, uint16_t errorCode, const char *reason, size_t len) {
+ Serial.printf("Client %" PRIu32 " error: %" PRIu16 ": %s\n", client->id(), errorCode, reason);
+ });
+
+ wsHandler.onMessage([](AsyncWebSocket *server, AsyncWebSocketClient *client, const uint8_t *data, size_t len) {
+ Serial.printf("Client %" PRIu32 " data: %s\n", client->id(), (const char *)data);
+ });
+
+ wsHandler.onFragment([](AsyncWebSocket *server, AsyncWebSocketClient *client, const AwsFrameInfo *frameInfo, const uint8_t *data, size_t len) {
+ Serial.printf("Client %" PRIu32 " fragment %" PRIu32 ": %s\n", client->id(), frameInfo->num, (const char *)data);
+ });
+
+ server.addHandler(&ws);
+ server.begin();
+}
+
+static uint32_t lastWS = 0;
+static uint32_t deltaWS = 2000;
+
+void loop() {
+ uint32_t now = millis();
+
+ if (now - lastWS >= deltaWS) {
+ ws.cleanupClients();
+ ws.printfAll("now: %" PRIu32 "\n", now);
+ lastWS = millis();
+#ifdef ESP32
+ Serial.printf("Free heap: %" PRIu32 "\n", ESP.getFreeHeap());
+#endif
+ }
+}