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.    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 2x IR Receivers;  2x MIC;  1x HiFi stereo codec chip ( Up to 24bit DAC );  1x 400mAh lithium battery;  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 Package Included:  1x Node Module;  Wall holder;  4x screws;  4x Type-C USB Cable;  Applications:  Intelligent IOT node;  Webradio;  Intelligent sound box;  Related Link:  Offical Video;    Example:  Voice control RGB light circle ( Chinese )