基于MQTT协议的传输，可以在此协议下对硬件以及软件的json格式进行传输(Based on the transmission of MQTT protocol, the JSON format of hardware and software can be transmitted under this Agreement)

基于MQTT协议下对发布和订阅方式进行更改和使用。(Change and use the release and subscr iption methods based on the MQTT protocol.)

MQTTClient 代码，C语言编写，可以在单片机上面跑(MQTTClient code, C language, you can run on the MCU.)