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2026-02-12 21:00:02 -08:00

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C++

/**
* @file example-serial-send.ino
* @author Phil Schatzmann
* @brief Sending encoded audio over ESPNow
* @version 0.1
* @date 2022-03-09
*
* @copyright Copyright (c) 2022
*/
#include "AudioTools.h"
#include "AudioTools/Communication/ESPNowStream.h"
#include "AudioTools/AudioCodecs/CodecSBC.h"
AudioInfo info(32000,1,16);
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;
SBCEncoder sbc;
EncodedAudioStream encoder(&now, &sbc); // encode and write to ESP-now
StreamCopy copier(encoder, 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);
// start encoder
encoder.begin(info);
Serial.println("Sender started...");
}
void loop() {
copier.copy();
}