Module – NODE Smart Speaker WM8978 Audio Development Module



Description


Node, like its namesake, is a smart node with full-featured functions in a IoT application scenarios. It can be program as a intelligent speaker like Echo. Node provides more hardware resources: built-in high-fidelity audio codec chip,MIC, DHT12,IR emitter …

ESP32 provides an Audio Develope Platform called ESP-ADF. ESP-ADF supports development of audio applications for the Espressif Systems ESP32 chip in the most comprehensive way. With ESP-ADF, you can easily add features, develop audio applications from simple to complex:

  • Music player or recorder supports audio formats such as MP3, AAC, FLAC, WAV, OGG, AMR, TS, EQ, Downmixer, Sonic, G.711, SPEEX …
  • Play music from sources: HTTP, HLS(HTTP Live Streaming), SPIFFS, SDCARD, A2DP-Source, A2DP-Sink, HFP …
  • Integrate Media services such as: DLNA, WeChat … Internet Radio
  • Voice recognition and integration with online services such as Alexa, DuerOS, and more.

Feature


  • 1x 12 RGBs
  • 1x temperature & humidity sensor(DHT12),which can display its own status and perception surrounding environment.
  • 4x IR Transmitter LEDs at four corners and 1x IR Receivers
  • 2x MIC
  • 1x HiFi stereo codec chip ( Up to 24bit DAC )
  • 1x 500mAh lithium battery

 

Application


  • Intelligent IOT node
  • Webradio
  • Intelligent sound box

Source PinMap


ESP32 GPIO0 GPIO13 GPIO5 GPIO2 ( MOSI ) GPIO34 ( MISO ) GPIO21 GPIO22 GPIO25
Codec Chip ( WM8978 ) I2S_CLK ( MCLK ) I2S_WS ( LRC ) I2S_BCK ( BCK ) I2S_IN ( DACDAT ) I2S_OUT ( ADCDAT ) I2C_SDA ( SDIN ) I2C_SCL ( SCLK ) L_OUT1 ( LOUT1 )
ESP32 GPIO15 GPIO35 GPIO12 GPIO21 GPIO22
RGBLed(SK6812) Signal Pin / / / /
IR / IR_Receive IR_Send / /
DHT12 / / / I2C_SDA I2C_SCL

Include

  • 1x Node Module
  • Wall holder
  • 4x screws
  • 4x Type-C USB Cable

Datasheet