acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
M5StackNode.ino (1267B)
      1 
      2 // M5Stack Node support
      3 // thanks to Cellie - issue #35     25.Apr.2020
      4 // M5Stack board with Node base also need a MCLK signal on GPIO0.
      5 
      6 #include <wm8978.h> /* https://github.com/CelliesProjects/wm8978-esp32 */
      7 #include <Audio.h> /* https://github.com/schreibfaul1/ESP32-audioI2S */
      8 
      9 /* M5Stack Node WM8978 I2C pins */
     10 #define I2C_SDA     21
     11 #define I2C_SCL     22
     12 
     13 /* M5Stack Node I2S pins */
     14 #define I2S_BCK      5
     15 #define I2S_WS      13
     16 #define I2S_DOUT     2
     17 #define I2S_DIN     34
     18 
     19 /* M5Stack WM8978 MCLK gpio number */
     20 #define I2S_MCLKPIN  0
     21 
     22 WM8978 dac;
     23 Audio audio;
     24 
     25 void setup() {
     26   /* Setup wm8978 I2C interface */
     27   if (!dac.begin(I2C_SDA, I2C_SCL)) {
     28     ESP_LOGE(TAG, "Error setting up dac. System halted");
     29     while (1) delay(100);
     30   }
     31 
     32   /* Setup wm8978 I2S interface */
     33   audio.setPinout(I2S_BCK, I2S_WS, I2S_DOUT, I2S_DIN);
     34 
     35   /* Setup wm8978 MCLK - for example M5Stack Node needs MCLK on GPIO 0 */
     36   audio.i2s_mclk_pin_select(I2S_MCLKPIN);
     37 
     38   WiFi.begin("xxx", "xxx");
     39   while (!WiFi.isConnected()) {
     40     delay(10);
     41   }
     42   ESP_LOGI(TAG, "Connected");
     43 
     44   ESP_LOGI(TAG, "Starting MP3...\n");
     45   audio.connecttohost("http://icecast.omroep.nl/3fm-bb-mp3");
     46 
     47   dac.setSPKvol(40); /* max 63 */
     48   dac.setHPvol(32, 32);
     49 }
     50 
     51 void loop() {
     52   audio.loop();
     53 }