add Atomic SPK example

Author: Gitshaoxiang

examples/AtomicBase/AtomicSPK/PlayMP3FromSD/PlayMP3FromSD.ino

@@ -0,0 +1,102 @@
+/*
+ * SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/**
+ * @file PlayMP3FromSD.ino
+ * @brief M5AtomS3 Atomic SPK SDCard MP3 Player
+ * @version 0.1
+ * @date 2024-11-22
+ *
+ *
+ * @Hardwares: M5AtomS3 + Atomic SPK Base + MicroSD Card
+ * @Platform Version: Arduino M5Stack Board Manager v2.1.2
+ * @Dependent Library:
+ * M5GFX: https://github.com/m5stack/M5GFX
+ * M5Unified: https://github.com/m5stack/M5Unified
+ * M5AtomS3: https://github.com/m5stack/M5AtomS3
+ * ESP8266Audio: https://github.com/earlephilhower/ESP8266Audio
+ * MP3 file link: http://gitfile.oss-cn-beijing.aliyuncs.com/11-fanfare.mp3
+ */
+
+#include "M5AtomS3.h"
+#include <WiFi.h>
+
+#include "SPIFFS.h"
+#include "AudioFileSourceSD.h"
+#include "AudioGeneratorMP3.h"
+#include "AudioOutputI2S.h"
+#include "AudioFileSourceID3.h"
+
+AudioGeneratorMP3 *mp3;
+AudioFileSourceSD *file;
+AudioOutputI2S *out;
+AudioFileSourceID3 *id3;
+
+#define SCK  7
+#define MISO 8
+#define MOSI 6
+
+void StatusCallback(void *cbData, int code, const char *string)
+{
+    const char *ptr = reinterpret_cast<const char *>(cbData);
+    char s1[64];
+    strncpy_P(s1, string, sizeof(s1));
+    s1[sizeof(s1) - 1] = 0;
+    Serial.printf("STATUS(%s) '%d' = '%s'\n", ptr, code, s1);
+    Serial.flush();
+}
+
+void MDCallback(void *cbData, const char *type, bool isUnicode, const char *string)
+{
+    (void)cbData;
+    Serial.printf("ID3 callback for: %s = '", type);
+
+    if (isUnicode) {
+        string += 2;
+    }
+
+    while (*string) {
+        char a = *(string++);
+        if (isUnicode) {
+            string++;
+        }
+        Serial.printf("%c", a);
+    }
+    Serial.printf("'\n");
+    Serial.flush();
+}
+
+void setup()
+{
+    AtomS3.begin();
+    Serial.begin(115200);
+    SPI.begin(SCK, MISO, MOSI, -1);
+    if (!SD.begin()) {
+        Serial.println("Card Mount Failed");
+        return;
+    }
+    audioLogger = &Serial;
+    file        = new AudioFileSourceSD("/11-fanfare.mp3");
+    id3         = new AudioFileSourceID3(file);
+    id3->RegisterMetadataCB(MDCallback, (void *)"ID3TAG");
+    out = new AudioOutputI2S();
+
+    out->SetPinout(5, 39, 38);
+
+    mp3 = new AudioGeneratorMP3();
+    mp3->RegisterStatusCB(StatusCallback, (void *)"mp3");
+    mp3->begin(id3, out);
+}
+
+void loop()
+{
+    if (mp3->isRunning()) {
+        if (!mp3->loop()) mp3->stop();
+    } else {
+        Serial.printf("MP3 done\n");
+        delay(1000);
+    }
+}