From aa21417af363aedda7aa7b3fdf2f3083dfd218dd Mon Sep 17 00:00:00 2001
From: ladyada <limor@ladyada.net>
Date: Sat, 16 Mar 2019 03:37:38 -0400
Subject: [PATCH] this version requires a VS1053 shield or something - its a
 good wifi test!

---
 .../streaming_mp3_player/arduino_secrets.h    |   2 +
 .../streaming_mp3_player.ino                  | 116 ++++++++++++++++++
 2 files changed, 118 insertions(+)
 create mode 100644 Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/arduino_secrets.h
 create mode 100644 Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/streaming_mp3_player.ino

diff --git a/Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/arduino_secrets.h b/Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/arduino_secrets.h
new file mode 100644
index 000000000..09cee67b3
--- /dev/null
+++ b/Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/arduino_secrets.h
@@ -0,0 +1,2 @@
+#define SECRET_SSID "ssid"
+#define SECRET_PASS "password"
diff --git a/Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/streaming_mp3_player.ino b/Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/streaming_mp3_player.ino
new file mode 100644
index 000000000..7408e5ba0
--- /dev/null
+++ b/Adafruit_ESP32_Arduino_Demos/streaming_mp3_player/streaming_mp3_player.ino
@@ -0,0 +1,116 @@
+// Stream MP3s over WiFi on Metro M4 Express and play via music maker shield
+
+#include <SPI.h>
+#include <Adafruit_VS1053.h>
+#include <WiFiNINA.h>
+#include <CircularBuffer.h>
+#include "arduino_secrets.h" 
+
+///////please enter your sensitive data in the Secret tab/arduino_secrets.h
+char ssid[] = SECRET_SSID;        // your network SSID (name)
+char pass[] = SECRET_PASS;    // your network password (use for WPA, or use as key for WEP)
+
+
+//  http://ice1.somafm.com/u80s-128-mp3
+const char *host = "ice1.somafm.com";
+const char *path = "/u80s-128-mp3";
+//const char *path = "/doomed-128-mp3";
+int httpPort = 80;
+
+// These are the pins used
+#define VS1053_RESET   -1     // VS1053 reset pin (not used!)
+#define VS1053_CS       7     // VS1053 chip select pin (output)
+#define VS1053_DCS      6     // VS1053 Data/command select pin (output)
+#define VS1053_DREQ     3     // VS1053 Data request, ideally an Interrupt pin
+
+Adafruit_VS1053 musicPlayer =  Adafruit_VS1053(VS1053_RESET, VS1053_CS, VS1053_DCS, VS1053_DREQ);
+
+// Use WiFiClient class to create HTTP/TCP connection
+WiFiClient client;
+
+int lastvol = 30;
+
+#define BUFFER_SIZE 1500
+CircularBuffer<uint8_t, BUFFER_SIZE> buffer;
+  
+void setup() {
+  Serial.begin(115200);
+  while (!Serial);
+  delay(100);
+
+  Serial.println("\n\nAdafruit VS1053 Feather WiFi Radio");
+
+  /************************* INITIALIZE MP3 Shield */
+  if (! musicPlayer.begin()) { // initialise the music player
+     Serial.println(F("Couldn't find VS1053, do you have the right pins defined?"));
+     while (1) delay(10);
+  }
+
+  Serial.println(F("VS1053 found"));
+  //musicPlayer.sineTest(0x44, 10);    // Make a tone to indicate VS1053 is working
+  
+  // Set volume for left, right channels. lower numbers == louder volume!
+  musicPlayer.setVolume(lastvol, lastvol);
+
+  // don't use an IRQ, we'll hand-feed
+
+  /************************* INITIALIZE WIFI */
+  Serial.print("Connecting to SSID "); Serial.println(ssid);
+  WiFi.begin(ssid, pass);
+  
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("WiFi connected");  
+  Serial.println("IP address: ");  Serial.println(WiFi.localIP());
+
+  /************************* INITIALIZE STREAM */
+  Serial.print("Connecting to ");  Serial.println(host);
+  
+  if (!client.connect(host, httpPort)) {
+    Serial.println("Connection failed");
+    while (1);
+  }
+  
+  // We now create a URI for the request
+  Serial.print("Requesting URL: "); Serial.println(path);
+  
+  // This will send the request to the server
+  client.print(String("GET ") + path + " HTTP/1.1\r\n" +
+               "Host: " + host + "\r\n" + 
+               "Connection: close\r\n\r\n");
+}
+
+
+void loop() {
+  Serial.print("Client Avail: "); Serial.print(client.available());
+  Serial.print("\tBuffer Avail: "); Serial.println(buffer.available());
+
+  // Prioritize reading data from the ESP32 into the buffer (it sometimes stalls)
+  while (client.available() && buffer.available()) {
+    uint8_t minibuff[BUFFER_SIZE];
+
+    int bytesread = client.read(minibuff, buffer.available());
+    Serial.print("Client read: "); Serial.println(bytesread);
+
+    for (int i=0; i<bytesread; i++) {
+      buffer.push(minibuff[i]);      // push every byte we read
+    }
+  }
+
+  // OK if we can't buffer more, see if we should play!
+  if (musicPlayer.readyForData() && (buffer.size() > 0)) {
+    //wants more data! check we have something available from the stream
+    uint8_t mp3buff[32];   // vs1053 likes 32 bytes at a time
+
+    int byteswrite = min(32, buffer.size());
+    Serial.print("MP3 write: "); Serial.println(byteswrite);
+
+    // push to mp3
+    for (int i=0; i<byteswrite; i++) {
+      mp3buff[i] = buffer.shift();      // push every byte we read
+    }
+    musicPlayer.playData(mp3buff, byteswrite);
+  }
+}