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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
| 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 |
Schematic
