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用openmv进行识别人脸，然后将识别后的结果通过lora通信互传，显示在电脑端的串口助手中。
OpenMV直接串口发送数据给lora模块就行了。
串口助手软件和电脑上的lora接收器要另外买，找lora模块的厂家就行了。