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92 lines
3.3 KiB
Markdown
92 lines
3.3 KiB
Markdown
# Base Node
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<el-tag effect="plain">SKU:M017</el-tag>
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<div class="product_pic"><img src="assets/img/product_pics/base/node_01.webp"><img src="assets/img/product_pics/base/node_02.webp"></div>
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## 描述
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**Node**, 是一款物联网智能节点底座.内置高保真音频解码芯片、麦克风、DHT12、IR收发器、LED灯( SK6812 )等硬件资源.与M5Core结合使用能够支持多节点终端互联、设备控制与信息传输.
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不仅如此，功能强大的Node同样适用于智能音频设备开发.使用M5Core作为控制核心，运用EPS32 提供的 ESP-ADF 音频开发平台，能够以最全面的方式进行Espressif Systems ESP32芯片的音频应用开发，丰富的应用案例能够逐步指导添加新的功能，完成由简单到复杂的音频应用功能:
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- 支持多种音频格式，如MP3，AAC，FLAC，WAV，OGG，AMR，TS，EQ，Downmixer，Sonic，G.711，SPEEX等
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- 多种音频播放源：HTTP，HLS（HTTP直播），SPIFFS，SDCARD，A2DP-Source，A2DP-Sink，HFP等
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- 整合媒体服务，如：DLNA，WeChat，Internet Radio等
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- 语音识别、集成Alexa，DuerOS等在线服务
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## 产品特性
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* 1x 12 RGBs
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* 1x 温湿度传感器（DHT12）
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* 4x 红外发射器（位于边缘四角），1x 红外接收器（位于底边）.
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* 2x 麦克风
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- 1x HiFi 立体声编解码芯片 ( 24位分辨率 )
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- 1x 500mAh 锂电池
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<img src="assets/img/product_pics/base/node_04.webp" width="50%" height="50%">
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## 管脚映射
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<table>
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<tr><td>ESP32</td><td>GPIO0</td><td>GPIO13</td><td>GPIO5</td><td>GPIO2</td><td>GPIO34</td><td>GPIO21</td><td>GPIO22</td><td>GPIO25</td></tr>
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<tr><td>Codec Chip</td><td>I2S_CLK</td><td>I2S_WS</td><td>I2S_BCK</td><td>I2S_IN</td><td>I2S_OUT</td><td>I2C_SDA</td><td>I2C_SCL</td><td>L_OUT1</td></tr>
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</table>
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<table>
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<tr><td>ESP32</td><td>GPIO15</td><td>GPIO35</td><td>GPIO12</td><td>GPIO21</td><td>GPIO22</td></tr>
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<tr><td>node base</td><td>RGBLed(SK6812)</td><td>IR_Receive</td><td>IR_Send</td><td>DHT12_SDA</td><td>DHT12_SCL</td></tr>
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</table>
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## 包含
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- 1x Node Module
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- 1x 固定底座
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- 4x 螺丝
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- 2x M3x12
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- 2x M3x18
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- 4x Type-C USB
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<img src="assets/img/product_pics/base/node_05.webp" width="50%" height="50%">
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## 应用
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- 物联网智能节点
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- 网络收音机
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- 智能音箱
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<img src="assets/img/product_pics/base/node_03.webp" width="50%" height="50%">
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## 相关链接
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- **数据手册** - [WM8978](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/base/WM8978%20_en.pdf)
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## 案例程序
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- [语音控制 RGB 灯圈](https://github.com/m5stack/esp-adf/blob/master/examples/get-started/M5Node/main/play_mp3_example.c)
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<img src="assets/img/product_pics/base/base_example/example_base_node_01.webp">
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### 原理图
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<img src="assets/img/product_pics/base/node_sch_01.webp">
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<img src="assets/img/product_pics/base/node_sch_02.webp">
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## 相关视频
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**NODE 的演示 - 语音识别**
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<video class="video_size" controls>
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<source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Blog/Twitch201812/Node%20Module.mp4" type="video/mp4">
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</video>
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<script>
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var purchase_link = 'https://m5stack.com/collections/m5-base/products/node-module';
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anchor_search(purchase_link);
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scrollFunc();
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</script> |