snapshot

libraries/audio-tools/examples/examples-communication/lora/communication-lora-receive/communication-lora-receive.ino

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+/**
+ * @file example-lora-receive_measure.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via LoRa with max speed to measure thruput.
+ * @version 0.1
+ * @date 2023-11-09
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+
+#include "AudioTools.h"
+#include "AudioTools/Communication/LoRaStream.h"
+
+LoRaStream lora;
+MeasuringStream out;  // or CsvOutput<uint8_t>
+StreamCopy copier(out, lora);     
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+  while(!Serial);
+
+  auto cfg = lora.defaultConfig();
+  lora.begin(cfg);
+
+  // start output
+  Serial.println("starting Out...");
+  out.begin();
+
+  Serial.println("Receiver started...");
+}
+
+void loop() { 
+  copier.copy();
+}

libraries/audio-tools/examples/examples-communication/lora/communication-lora-send/communication-lora-send.ino

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+/**
+ * @file example-lora-send.ino
+ * @author Phil Schatzmann
+ * @brief Sending data over LoRa. We use a Heltec WiFi LoRa V3 board for testing.
+ * V3 boards use the SX1262.
+ * @version 0.1
+ * @date 2023-11-09
+ *
+ * @copyright Copyright (c) 2022
+ */
+
+#include "AudioTools.h"
+#include "AudioTools/Communication/LoRaStream.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
+LoRaStream lora;
+StreamCopy copier(lora, sound);  // copies sound into i2s
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+  while(!Serial);
+  Serial.println("starting...");
+
+  // Setup LoRa 
+  Serial.printf("SCK: %d, MISO: %d, MOSI: %d, SS=%d", SCK,MISO,MOSI,SS);
+  SPI.begin(SCK, MISO, MOSI, SS);
+  auto cfg = lora.defaultConfig();
+  cfg.copyFrom(info);
+  if (!lora.begin(cfg)){
+    Serial.println("LoRa failed");
+    stop();
+  }
+
+  // Setup sine wave
+  sineWave.begin(info, N_B4);
+
+  Serial.println("Sender started...");
+}
+
+void loop() { 
+  copier.copy();
+}