Communication examples - DRAFT

Author: pschatzmann

examples/examples-communication/example-bt-receive/example-bt-receive.ino

@@ -7,8 +7,12 @@
  * 
  * @copyright Copyright (c) 2022
  * 
+ * ATTENTION: DRAFT - not tested yet
  */
 
+#include "AudioTools.h"
+#include "BluetoothSerial.h"
+
 uint16_t sample_rate = 44100;
 uint8_t channels = 2;  // The stream will have 2 channels
 BluetoothSerial SerialBT;

examples/examples-communication/example-bt-send/example-bt-send.ino

@@ -7,8 +7,10 @@
  *
  * @copyright Copyright (c) 2022
  *
+ * ATTENTION: DRAFT - not tested yet
  */
 
+#include "AudioTools.h"
 #include "BluetoothSerial.h"
 
 uint16_t sample_rate = 44100;

examples/examples-communication/example-espnow-receive/example-espnow-receive.ino

@@ -0,0 +1,45 @@
+/**
+ * @file example-serial-receive.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via ESPNow
+ * @version 0.1
+ * @date 2022-03-09
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ * ATTENTION: DRAFT - not tested yet
+ */
+
+#include "AudioTools.h"
+#include "AudioLibs/Communication.h"
+
+uint16_t sample_rate = 44100;
+uint8_t channels = 2;  // The stream will have 2 channels
+ESPNowStream now;
+I2SStream out; 
+StreamCopy copier(out, now);     
+const char *ssd = "ssid";
+const char *password = "password";
+const char *peers[] = {"A8:48:FA:0B:93:40"}
+
+void setup() {
+  Serial.begin(115200);
+  AudioLogger::instance().begin(Serial, AudioLogger::Info);
+
+  now.addPeers(peers);
+  now.begin(ssid, pasword);
+
+  // start I2S
+  Serial.println("starting I2S...");
+  auto config = out.defaultConfig(TX_MODE);
+  config.sample_rate = sample_rate; 
+  config.channels = channels;
+  config.bits_per_sample = 16;
+  out.begin(config);
+
+  Serial.println("started...");
+}
+
+void loop() { 
+    copier.copy();
+}

examples/examples-communication/example-espnow-send/example-serial-send.ino renamed to examples/examples-communication/example-espnow-send/example-espnow-send.ino

@@ -7,8 +7,12 @@
  *
  * @copyright Copyright (c) 2022
  *
+ * ATTENTION: DRAFT - not tested yet
  */
 
+#include "AudioTools.h"
+#include "AudioLibs/Communication.h"
+
 uint16_t sample_rate = 44100;
 uint8_t channels = 2;  // The stream will have 2 channels
 SineWaveGenerator<sound_t> sineWave( 32000);  // subclass of SoundGenerator with max amplitude of 32000
@@ -17,12 +21,13 @@ ESPNowStream now;
 StreamCopy copier(now, sound);  // copies sound into i2s
 const char *ssd = "ssid";
 const char *password = "password";
+const char *peers[] = {"A8:48:FA:0B:93:40"}
 
 void setup() {
   Serial.begin(115200);
   AudioLogger::instance().begin(Serial, AudioLogger::Info);
 
-  now.add
+  now.addPeers(peers);
   now.begin(ssid, pasword);
 
   // Setup sine wave

examples/examples-communication/example-ip-receive/example-ip-receive.ino

@@ -0,0 +1,52 @@
+/**
+ * @file example-serial-receive.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via serial
+ * @version 0.1
+ * @date 2022-03-09
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ * ATTENTION: DRAFT - not tested yet
+ */
+
+#include "AudioTools.h"
+#include <WiFi.h>
+
+uint16_t sample_rate = 44100;
+uint8_t channels = 2;  // The stream will have 2 channels
+WiFiServer server(80);
+WiFiClient client; 
+I2SStream out; 
+StreamCopy copier(out, client);     
+const char* ssid     = "yourssid";
+const char* password = "yourpasswd";
+
+void setup() {
+  Serial.begin(115200);
+  AudioLogger::instance().begin(Serial, AudioLogger::Info);
+
+  // start server
+  server.begin();
+
+  // start I2S
+  Serial.println("starting I2S...");
+  auto config = out.defaultConfig(TX_MODE);
+  config.sample_rate = sample_rate; 
+  config.channels = channels;
+  config.bits_per_sample = 16;
+  out.begin(config);
+
+  Serial.println("started...");
+}
+
+void loop() { 
+  // get a new connection
+  if (!client){
+    client = server.available();  
+  }
+  // copy data if we are connected
+  if (client.connected()){
+    copier.copy();
+  }
+}

examples/examples-communication/example-ip-send/example-ip-send.ino

@@ -0,0 +1,49 @@
+/**
+ * @file example-serial-send.ino
+ * @author Phil Schatzmann
+ * @brief Sending audio over serial
+ * @version 0.1
+ * @date 2022-03-09
+ *
+ * @copyright Copyright (c) 2022
+ *
+ * ATTENTION: DRAFT - not tested yet
+ */
+
+#include "AudioTools.h"
+#include <WiFi.h>
+
+uint16_t sample_rate = 44100;
+uint8_t channels = 2;  // The stream will have 2 channels
+SineWaveGenerator<sound_t> sineWave( 32000);  // subclass of SoundGenerator with max amplitude of 32000
+GeneratedSoundStream<sound_t> sound( sineWave);  // Stream generated from sine wave
+WiFiClient client;                  
+StreamCopy copier(client, sound);  // copies sound into i2s
+const char *ssid = "ssid";
+
+void setup() {
+  Serial.begin(115200);
+  AudioLogger::instance().begin(Serial, AudioLogger::Info);
+
+  // connect to WIFI
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+      delay(500);
+      Serial.print(".");
+  }
+  Serial.println();
+
+  // Try to connect to ip / port
+  while (!client.connect("134.209.234.6", 80)) {
+    Serial.println("trying to connect...");
+    delay(5000);
+  }
+
+  // Setup sine wave
+  sineWave.begin(channels, sample_rate, N_B4);
+  Serial.println("started...");
+}
+
+void loop() { 
+    copier.copy();
+}

examples/examples-communication/example-serial-receive/example-serial-receive.ino

@@ -7,8 +7,11 @@
  * 
  * @copyright Copyright (c) 2022
  * 
+ * ATTENTION: DRAFT - not tested yet
  */
 
+#include "AudioTools.h"
+
 #define RXD2 16
 #define TXD2 17
 

examples/examples-communication/example-serial-send/example-serial-send.ino

@@ -7,8 +7,11 @@
  *
  * @copyright Copyright (c) 2022
  *
+ * ATTENTION: DRAFT - not tested yet
  */
 
+#include "AudioTools.h"
+
 #define RXD2 16
 #define TXD2 17
 

src/AudioLibs/Communication.h

@@ -31,6 +31,18 @@ class ESPNowStream : public AudioStreamX {
     return result == ESP_OK;
   }
 
+  /// Adds an array of
+  template<size_t size>
+  bool addPeers(const char*(&array)[size]) {
+    bool result = true;
+    for (int j=0;j<size;j++){
+      if(!addPeer(array[j])){
+        result = false;
+      }
+    }
+    return result;
+  }
+
   /// Adds a peer to which we can send info or from which we can receive info
   bool addPeer(const char *address) {
     esp_now_peer_info_t peer;