snapshot

libraries/audio-tools/examples/examples-communication/esp-now/pcm/communication-espnow-receive/communication-espnow-receive.ino

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+/**
+ * @file example-espnow-receive.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via ESPNow
+ * @version 0.1
+ * @date 2022-03-09
+ * 
+ * @copyright Copyright (c) 2022
+ */
+
+#include "AudioTools.h"
+#include "AudioTools/Communication/ESPNowStream.h"
+
+AudioInfo info(8000, 1, 16);
+ESPNowStream now;
+MeasuringStream now1(now);
+
+I2SStream out; 
+StreamCopy copier(out, now1);     
+const char *peers[] = {"A8:48:FA:0B:93:02"};
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+
+  auto cfg = now.defaultConfig();
+  cfg.mac_address = "A8:48:FA:0B:93:01";
+  now.begin(cfg);
+  now.addPeers(peers);
+
+  // start I2S
+  Serial.println("starting I2S...");
+  auto config = out.defaultConfig(TX_MODE);
+  config.copyFrom(info); 
+  out.begin(config);
+
+  Serial.println("Receiver started...");
+}
+
+void loop() { 
+  copier.copy();
+}

libraries/audio-tools/examples/examples-communication/esp-now/pcm/communication-espnow-receive_csv/communication-espnow-receive_csv.ino

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+/**
+ * @file example-espnow-receive_csv.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via ESPNow
+ * @version 0.1
+ * @date 2022-03-09
+ * 
+ * @copyright Copyright (c) 2022
+ */
+
+#include "AudioTools.h"
+#include "AudioTools/Communication/ESPNowStream.h"
+
+ESPNowStream now;
+const char *peers[] = {"A8:48:FA:0B:93:02"};
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  auto cfg = now.defaultConfig();
+  cfg.mac_address = "A8:48:FA:0B:93:01";
+  now.begin(cfg);
+  now.addPeers(peers);
+
+  Serial.println("Receiver started...");
+}
+
+void loop() { 
+  int16_t sample;
+  if (now.readBytes((uint8_t*)&sample,2)){
+    Serial.println(sample); 
+  }  
+}

libraries/audio-tools/examples/examples-communication/esp-now/pcm/communication-espnow-receive_measure/communication-espnow-receive_measure.ino

@@ -0,0 +1,38 @@
+/**
+ * @file example-espnow-receive_measure.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via ESPNow with max speed to measure thruput
+ * @version 0.1
+ * @date 2022-03-09
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+
+#include "AudioTools.h"
+#include "AudioTools/Communication/ESPNowStream.h"
+
+ESPNowStream now;
+MeasuringStream out;
+StreamCopy copier(out, now);     
+const char *peers[] = {"A8:48:FA:0B:93:02"};
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+
+  auto cfg = now.defaultConfig();
+  cfg.mac_address = "A8:48:FA:0B:93:01";
+  now.begin(cfg);
+  now.addPeers(peers);
+
+  // start I2S
+  Serial.println("starting Out...");
+  out.begin();
+
+  Serial.println("Receiver started...");
+}
+
+void loop() { 
+  copier.copy();
+}

libraries/audio-tools/examples/examples-communication/esp-now/pcm/communication-espnow-send/communication-espnow-send.ino

@@ -0,0 +1,37 @@
+/**
+ * @file example-espnow-send.ino
+ * @author Phil Schatzmann
+ * @brief Sending audio over ESPNow
+ * @version 0.1
+ * @date 2022-03-09
+ *
+ * @copyright Copyright (c) 2022
+ */
+
+#include "AudioTools.h"
+#include "AudioTools/Communication/ESPNowStream.h"
+
+AudioInfo info(8000, 1, 16);
+SineWaveGenerator<int16_t> sineWave( 32000);  // subclass of SoundGenerator with max amplitude of 32000
+GeneratedSoundStream<int16_t> sound( sineWave); // Stream generated from sine wave
+ESPNowStream now;
+StreamCopy copier(now, sound);  // copies sound into i2s
+const char *peers[] = {"A8:48:FA:0B:93:01"};
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  auto cfg = now.defaultConfig();
+  cfg.mac_address = "A8:48:FA:0B:93:02";
+  now.begin(cfg);
+  now.addPeers(peers);
+
+  // Setup sine wave
+  sineWave.begin(info, N_B4);
+  Serial.println("Sender started...");
+}
+
+void loop() { 
+  copier.copy();
+}