esp32实现在线音频播放
环境
vscode+platformio+arduion && 串口，wifi-CSDN博客
代码
// Welcome to www.LingShunLAB.com #include "Arduino.h" #include "WiFiMulti.h" #include "Audio.h" // Digital I/O used #define I2S_DOUT 7 #define I2S_BCLK 15 #define I2S_LRC 16 Audio audio; WiFiMulti wifiMulti; // config your wifi String ssid = "0000"; String password = "000"; void setup() { Serial.begin(115200); delay(1000); Serial.println("\n\nESP32-S3 Audio Streamer Starting..."); // 初始化 WiFi WiFi.mode(WIFI_STA); WiFi.disconnect(); delay(100); // 添加 WiFi 网络 wifiMulti.addAP(ssid.c_str(), password.c_str()); Serial.println("Connecting to WiFi..."); Serial.print("SSID: "); Serial.println(ssid); // 尝试连接 WiFi，最多重试10次 int retryCount = 0; while (wifiMulti.run() != WL_CONNECTED && retryCount < 20) { delay(500); Serial.print("."); retryCount++; } if (WiFi.status() == WL_CONNECTED) { Serial.println("\nWiFi Connected!"); Serial.print("IP Address: "); Serial.println(WiFi.localIP()); Serial.print("Signal Strength: "); Serial.print(WiFi.RSSI()); Serial.println(" dBm"); } else { Serial.println("\nWiFi Connection Failed!"); Serial.println("Possible causes:"); Serial.println("1. Wrong SSID or password"); Serial.println("2. WiFi network not in range"); Serial.println("3. Network requires special authentication"); Serial.println("4. Hardware issue"); // 继续执行，音频库可能会重试 } // 初始化音频 audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT); audio.setVolume(12); // 0...21 // 只有在WiFi连接成功后才尝试连接音频流 if (WiFi.status() == WL_CONNECTED) { Serial.println("Connecting to audio stream..."); audio.connecttohost("http://ngcdn001.cnr.cn/live/zgzs/index.m3u8"); // 128k mp3 } } void loop() { audio.loop(); // 定期检查WiFi状态 static unsigned long lastCheck = 0; if (millis() - lastCheck > 10000) { // 每10秒检查一次 lastCheck = millis(); if (WiFi.status() != WL_CONNECTED) { Serial.println("WiFi disconnected! Attempting to reconnect..."); wifiMulti.run(); } } if(Serial.available()){ // put streamURL in serial monitor audio.stopSong(); String r=Serial.readString(); r.trim(); if(r.length()>5) audio.connecttohost(r.c_str()); log_i("free heap=%i", ESP.getFreeHeap()); } } // optional callback functions (same as before) void audio_info(const char *info){ Serial.print("info "); Serial.println(info); } void audio_id3data(const char *info){ Serial.print("id3data ");Serial.println(info); } void audio_eof_mp3(const char *info){ Serial.print("eof_mp3 ");Serial.println(info); } void audio_showstation(const char *info){ Serial.print("station ");Serial.println(info); } void audio_showstreamtitle(const char *info){ Serial.print("streamtitle ");Serial.println(info); } void audio_bitrate(const char *info){ Serial.print("bitrate ");Serial.println(info); } void audio_commercial(const char *info){ Serial.print("commercial ");Serial.println(info); } void audio_icyurl(const char *info){ Serial.print("icyurl ");Serial.println(info); } void audio_lasthost(const char *info){ Serial.print("lasthost ");Serial.println(info); } // 添加WiFi事件处理回调 void WiFiEvent(WiFiEvent_t event) { switch(event) { case ARDUINO_EVENT_WIFI_STA_GOT_IP: Serial.println("WiFi Connected! Got IP: " + WiFi.localIP().toString()); break; case ARDUINO_EVENT_WIFI_STA_DISCONNECTED: Serial.println("WiFi Disconnected. Attempting to reconnect..."); wifiMulti.run(); break; default: break; } }