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libraries/audio-tools/examples/sandbox/websockets/client-as-source/server/server.ino

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+/**
+ * @brief A simple WebSocket server sketch that receives PCM audio data using the
+ * https://github.com/Links2004/arduinoWebSockets library and outputs it via i2s
+ * to an AudioKit for easy testing. Replace the output with whatever other class
+ * you like.
+ * @author Phil Schatzmann
+ */
+#include <WebSocketsServer.h>  //https://github.com/Links2004/arduinoWebSockets
+#include <WiFi.h>
+#include <WiFiClientSecure.h>
+#include <WiFiMulti.h>
+#include "AudioTools.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
+
+WiFiMulti WiFiMulti;
+WebSocketsServer webSocket(81);
+AudioInfo info(44100, 2, 16);
+AudioBoardStream i2s(AudioKitEs8388V1);  // Access I2S as stream
+
+/// Just output the audio data
+void webSocketEvent(uint8_t num, WStype_t type, uint8_t* payload,
+                    size_t length) {
+  if (type == WStype_BIN) {
+    i2s.write(payload, length);
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+
+  WiFiMulti.addAP("SSID", "passpasspass");
+  while (WiFiMulti.run() != WL_CONNECTED) {
+    delay(100);
+  }
+  WiFi.setSleep(false);
+  Serial.println(WiFi.localIP());
+
+  // start server
+  webSocket.begin();
+  webSocket.onEvent(webSocketEvent);
+
+  // start i2s
+  auto cfg = i2s.defaultConfig(TX_MODE);
+  cfg.copyFrom(info);
+  i2s.begin(cfg);
+}
+
+void loop() { webSocket.loop(); }