Add pre-packaged dependency libraries (ESP32-audioI2S and PNGdec)

libraries/ESP32-audioI2S/examples/ESP32_TTGO-TAudio/ESP32_TTGO-TAudio.ino

@@ -0,0 +1,59 @@
+// Copied from https://github.com/LilyGO/TTGO-TAudio/issues/12
+
+
+// Required Libraries (Download zips and add to the Arduino IDE library).
+#include "Arduino.h"
+#include <WM8978.h> // https://github.com/CelliesProjects/wm8978-esp32
+#include <Audio.h>  // https://github.com/schreibfaul1/ESP32-audioI2S
+
+// T-Audio 1.6 WM8978 I2C pins.
+#define I2C_SDA     19
+#define I2C_SCL     18
+
+// T-Audio 1.6 WM8978 I2S pins.
+#define I2S_BCK     33
+#define I2S_WS      25
+#define I2S_DOUT    26
+
+// T-Audio 1.6 WM8978 MCLK gpio number
+#define I2S_MCLKPIN  0
+
+Audio audio;
+WM8978 dac;
+
+void my_audio_info(Audio::msg_t m) {
+    Serial.printf("%s: %s\n", m.s, m.msg);
+}
+
+void setup() {
+    Audio::audio_info_callback = my_audio_info;
+    Serial.begin(115200);
+
+  // Setup wm8978 I2C interface.
+  if (!dac.begin(I2C_SDA, I2C_SCL)) {
+    ESP_LOGE(TAG, "Error setting up dac: System halted.");
+    while (1) delay(100);
+  }
+
+  // Select I2S pins
+  audio.setPinout(I2S_BCK, I2S_WS, I2S_DOUT);
+  audio.i2s_mclk_pin_select(I2S_MCLKPIN);
+
+  // WiFi Settings here.
+  WiFi.begin("EnterSSIDHere", "EnterPasswordHere");
+  while (!WiFi.isConnected()) {
+    delay(10);
+  }
+  ESP_LOGI(TAG, "Connected. Starting MP3...");
+  // Enter your Icecast station URL here.
+  audio.setVolume(21);
+  audio.connecttohost("http://hestia2.cdnstream.com/1458_128");
+  // Volume control.
+  dac.setSPKvol(63); // Change volume here for board speaker output (Max 63).
+  dac.setHPvol(63, 63); // Change volume here for headphone jack left, right channel.
+}
+
+void loop() {
+    vTaskDelay(1);
+    audio.loop();
+}