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libraries/audio-tools/examples/examples-communication/http-client/streams-url_raw-serial/README.md

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+# Display RAW Stream
+
+Sometimes it is handy to check out the data on the screen with the help of the Arduino Serial Monitor and Serial Plotter.
+We read the raw binary data from an URLStream.
+
+As output stream we use a CsvOutput: this class transforms the data into CSV and prints the result to Serial. Finally we can use the Arduino Serial Plotter to view the result as chart:
+
+![serial-plotter](https://pschatzmann.github.io/Resources/img/serial-plotter-01.png)

libraries/audio-tools/examples/examples-communication/http-client/streams-url_raw-serial/streams-url_raw-serial.ino

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+/**
+ * @file streams-url_raw-serial.ino
+ * @author Phil Schatzmann
+ * @brief see https://github.com/pschatzmann/arduino-audio-tools/blob/main/examples/examples-stream/streams-url_raw-serial/README.md 
+ * @author Phil Schatzmann
+ * @copyright GPLv3
+ */
+ 
+#include "WiFi.h"
+#include "AudioTools.h"
+#include "AudioTools/Communication/AudioHttp.h"
+
+
+
+URLStream music;  // Music Stream
+int channels = 2; // The stream has 2 channels 
+CsvOutput<int16_t> printer(Serial, channels);  // ASCII stream 
+StreamCopy copier(printer, music);    // copies music into printer
+
+// Arduino Setup
+void setup(void) {  
+  // Open Serial 
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+  
+  // connect to WIFI
+  WiFi.begin("network-name", "password");
+  while (WiFi.status() != WL_CONNECTED){
+    Serial.print(".");
+    delay(500); 
+  }
+
+  // open music stream - it contains 2 channels of int16_t data
+  music.begin("https://pschatzmann.github.io/Resources/audio/audio.raw");
+}
+
+
+// Arduino loop - repeated processing 
+void loop() {
+  copier.copy();
+}