NODE Audio Dev Module (WM8978, DHT12)

Description

Node, like its namesake, is a smart node with full-featured functions in a IoT application scenarios. Together with M5Stack Core, it can be programmed as an 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.

##Product 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

Kit includes

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

Applications

• Intelligent IOT node
• Webradio
• Intelligent sound box

Documents

• Datasheet - WM8978

Learn

PinMap

ESP32GPIO0GPIO13GPIO5GPIO2 ( MOSI )GPIO34 ( MISO )GPIO21GPIO22GPIO25Codec 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 )ESP32GPIO15GPIO35GPIO12GPIO21GPIO22RGBLed(SK6812)Signal Pin////IR/IR_ReceiveIR_Send//DHT12///I2C_SDAI2C_SCL

Schematic