Move websockets to sandbox

Author: pschatzmann

examples/examples-communication/websockets/client-send/client/client.ino renamed to examples/sandbox/websockets/client-as-source/client/client.ino

@@ -1,12 +1,13 @@
 /**
  * @brief A simple WebSocket client sketch that sends out some PCM audio
- * data using the https://github.com/Links2004/arduinoWebSockets library
+ * data using the https://github.com/Links2004/arduinoWebSockets library.AdapterAudioStreamToAudioOutput.AdapterAudioStreamToAudioOutput
+ * The WebSocket API is asynchronous, so we need to slow down the sending
+ * to the playback speed, to prevent any buffer overflows at the receiver.
  * @author Phil Schatzmann
  */
 
 #include <WebSocketsClient.h>  // https://github.com/Links2004/arduinoWebSockets
 #include <WiFiMulti.h>
-
 #include "AudioTools.h"
 #include "AudioTools/Communication/WebSocketOutput.h"
 
@@ -18,7 +19,8 @@ WebSocketOutput out(webSocket);
 AudioInfo info(44100, 2, 16);
 SineWaveGenerator<int16_t> sineWave(32000);
 GeneratedSoundStream<int16_t> sound(sineWave);
-StreamCopy copier(out, sound);
+Throttle throttle(out)
+StreamCopy copier(throttle, sound);
 
 void setup() {
   Serial.begin(115200);
@@ -28,14 +30,17 @@ void setup() {
   while (WiFiMulti.run() != WL_CONNECTED) {
     delay(100);
   }
+  WiFi.setSleep(false);
 
   // start client connecting to server address, port and URL
-  webSocket.begin("192.168.0.123", 81, "/");
+  webSocket.begin("192.168.1.34", 81, "/");
 
   // try ever 5000 again if connection has failed
   webSocket.setReconnectInterval(5000);
 
   sineWave.begin(info, N_B4);
+  // WebSockets are async, so we need to slow down the sending
+  throttle.begin(info);
 }
 
 void loop() {

examples/examples-communication/websockets/client-send/server/server.ino renamed to examples/sandbox/websockets/client-as-source/server/server.ino

@@ -9,8 +9,8 @@
 #include <WiFi.h>
 #include <WiFiClientSecure.h>
 #include <WiFiMulti.h>
-
 #include "AudioTools.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
 
 WiFiMulti WiFiMulti;
 WebSocketsServer webSocket(81);
@@ -33,6 +33,8 @@ void setup() {
   while (WiFiMulti.run() != WL_CONNECTED) {
     delay(100);
   }
+  WiFi.setSleep(false);
+  Serial.println(WiFi.localIP());
 
   // start server
   webSocket.begin();

examples/examples-communication/websockets/server-send/client/client.ino renamed to examples/sandbox/websockets/server-as-source/client/client.ino

@@ -7,14 +7,12 @@
  */
 #include <WebSocketsClient.h>  // https://github.com/Links2004/arduinoWebSockets
 #include <WiFiMulti.h>
-
 #include "AudioTools.h"
-#include "AudioTools/Communication/WebSocketOutput.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
 
 // websocket
 WiFiMulti WiFiMulti;
 WebSocketsClient webSocket;
-WebSocketOutput out(webSocket);  // or replace with I2SStream
 // audio
 AudioInfo info(44100, 2, 16);
 AudioBoardStream i2s(AudioKitEs8388V1);  // Access I2S as stream
@@ -35,9 +33,10 @@ void setup() {
   while (WiFiMulti.run() != WL_CONNECTED) {
     delay(100);
   }
+  WiFi.setSleep(false);
 
   // start client connecting to server address, port and URL
-  webSocket.begin("192.168.0.123", 81, "/");
+  webSocket.begin("192.168.1.34", 81, "/");
 
   // event handler
   webSocket.onEvent(webSocketEvent);
@@ -53,5 +52,4 @@ void setup() {
 
 void loop() {
   webSocket.loop();
-  copier.copy();
 }

examples/examples-communication/websockets/server-send/server/server.ino renamed to examples/sandbox/websockets/server-as-source/server/server.ino

@@ -2,13 +2,14 @@
  * @brief A simple WebSocket server sketch using the
  * https://github.com/Links2004/arduinoWebSockets library to send out some
  * PCM audio data when some clients are connnected.
+ * The WebSocket API is asynchronous, so we need to slow down the sending
+ * to the playback speed, to prevent any buffer overflows at the receiver.
  * @author Phil Schatzmann
  */
 
 #include <WebSocketsServer.h>  // https://github.com/Links2004/arduinoWebSockets
 #include <WiFi.h>
 #include <WiFiMulti.h>
-
 #include "AudioTools.h"
 #include "AudioTools/Communication/WebSocketOutput.h"
 
@@ -20,7 +21,8 @@ WebSocketOutput out(webSocket);
 AudioInfo info(44100, 2, 16);
 SineWaveGenerator<int16_t> sineWave(32000);
 GeneratedSoundStream<int16_t> sound(sineWave);
-StreamCopy copier(out, sound);  // copies sound into i2s
+Throttle throttle(out);
+StreamCopy copier(throttle, sound);  // copies sound into i2s
 
 void setup() {
   // Serial.begin(921600);
@@ -32,12 +34,16 @@ void setup() {
   while (WiFiMulti.run() != WL_CONNECTED) {
     delay(100);
   }
+  WiFi.setSleep(false);
+  Serial.println(WiFi.localIP());
 
   // start server
   webSocket.begin();
 
-  // start i2s
+  // start sine generation
   sineWave.begin(info, N_B4);
+  throttle.begin(info);
+  
 }
 
 void loop() {