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#include <Arduino.h> #include <AudioFileSourceLittleFS.h> #include <AudioGeneratorWAV.h> #include <AudioOutputI2S.h> #include <FS.h> #include <LittleFS.h> // Audio objects AudioGeneratorWAV *wav; AudioFileSourceLittleFS *file; AudioOutputI2S *out; // I2S pin definitions #define I2S_BCLK 26 // Bit clock pin #define I2S_LRC 25 // Left-right clock pin #define I2S_DOUT 22 // Data output pin void setup() { Serial.begin(115200); delay(1000); Serial.println("Initializing LittleFS..."); if (!LittleFS.begin()) { Serial.println("LittleFS Mount Failed"); return; } Serial.println("Setting up I2S..."); out = new AudioOutputI2S(); out->SetPinout(I2S_BCLK, I2S_LRC, I2S_DOUT); // Configure I2S pins out->SetGain(0.8); // Adjust audio volume Serial.println("Initializing WAV generator..."); file = new AudioFileSourceLittleFS("/sample.wav"); // Load WAV file wav = new AudioGeneratorWAV(); if (!wav->begin(file, out)) { Serial.println("Failed to start WAV playback"); } } void loop() { if (wav->isRunning()) { if (!wav->loop()) { wav->stop(); Serial.println("WAV playback finished."); } } else { delay(1000); } }
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